阅读说明：本技术 一种油田修井作业用自动排管装置 (Automatic pipe arranging device for oil field well repairing operation ) 是由 马卫立 王�琦 邢文 鞠波 陈为一 郑宏伟 徐国强 江兴忠 葛普 赵树良 于 2021-03-19 设计创作，主要内容包括：本发明公开了一种油田修井作业用自动排管装置,结构包括龙门架、围堰底座和加长导轨作为主体部分,龙门架底部安装行走部分,通过液压传动,采用齿轮齿条方式行走在底座的围堰底座和加长导轨上；油管接送架固定在围堰底座上,围堰底座上还安装设置有电控系统和液压系统,测长装置分两组安装在龙门架上端两侧,升降装置安装设置在龙门架中间位置,升降装置两侧通过导向座安装液压永磁吸盘；一键操作台安装在井口台面附近,由一根电缆连接到围堰底座上的电控系统内,自动排管装置可以减轻工作人员的劳动强度,节约修井维修成本,同时防止油污落地,保护并防止环境污染,是对现有技术一次扩展性的技术创新,具有很好的推广和使用价值。(The invention discloses an automatic pipe arranging device for oil field well repairing operation, which structurally comprises a portal frame, a cofferdam base and a lengthened guide rail as main parts, wherein a walking part is arranged at the bottom of the portal frame and walks on the cofferdam base and the lengthened guide rail of the base in a gear and rack mode through hydraulic transmission; the oil pipe receiving and delivering frame is fixed on the cofferdam base, the cofferdam base is also provided with an electric control system and a hydraulic system, the length measuring devices are arranged on two sides of the upper end of the portal frame in two groups, the lifting device is arranged in the middle of the portal frame, and the two sides of the lifting device are provided with hydraulic permanent magnetic chucks through guide seats; the one-key operation table is arranged near the table top of the well mouth and is connected into the electric control system on the cofferdam base through a cable, the automatic pipe arranging device can reduce the labor intensity of workers, save the well repairing and maintaining cost, prevent oil stains from falling to the ground, protect and prevent environmental pollution, is a technical innovation of one-time expansibility in the prior art, and has good popularization and use values.)

1. An automatic pipe arranging device for oil field well workover operation is characterized by structurally comprising a portal frame, a one-key operation table, a cofferdam base, a lengthened guide rail, an oil pipe receiving and delivering frame, a hydraulic permanent magnetic chuck, a length measuring device, an electric control system, a hydraulic system and a lifting device; the gantry, the cofferdam base and the lengthened guide rail are used as main parts, a walking part is arranged at the bottom of the gantry, and the gantry walks on the cofferdam base and the lengthened guide rail of the base in a gear rack mode through hydraulic transmission to move the discharge oil pipe back and forth; the oil pipe receiving and delivering frame is fixed on the cofferdam base, the cofferdam base is also provided with an electric control system and a hydraulic system, the length measuring devices are arranged on two sides of the upper end of the portal frame in two groups, and the lifting device is arranged in the middle of the portal frame; hydraulic permanent magnetic chucks are arranged on two sides of the lifting device through guide seats; the one-key operation platform is arranged near the surface of a wellhead, is connected into an electric control system on the cofferdam base by a cable, is a small nearby operation platform consisting of four buttons of one-key starting, pausing, stretching and retracting and emergency stopping, is convenient for nearby operation, is convenient for controlling the running condition of the whole set of equipment nearby the wellhead, and is a part of the electric control system.

2. The automatic pipe arranging device for the oilfield workover treatment according to claim 1, wherein the portal frame comprises a portal clamping seat, a tension wheel, a chain, a through shaft and a gear seat which are arranged at two sides, the through shafts at the two sides are connected through a coupling, and the hydraulic motor is in driving connection with the gear seat through the through shaft at one side;

the gantry clamping seat is arranged at the lower end of the gantry frame, and a gear seat is arranged on the gantry clamping seat; the gear seat is connected with the through shaft through a tension wheel and a chain;

and a gantry clamping seat arranged at the lower end of the gantry is clamped on a rack guide rail welded on the H-shaped steel surface and linearly reciprocates along the two ends of the cofferdam base, and a gear seat arranged on the gantry clamping seat is meshed with the rack guide rail.

3. The automatic pipe arranging device for the oil field workover treatment according to claim 1, wherein the cofferdam base comprises H-shaped steel arranged on the left side and the right side, the middle of the H-shaped steel is connected with a guard plate through a welded channel steel to form a frame structure, a rack guide rail is welded on the top surface of the H-shaped steel, and guide rail connecting devices are arranged on the two sides of the H-shaped steel; an oil pipe receiving and delivering frame connecting lug seat is arranged on a fixed support in the cofferdam base, so that the oil pipe receiving and delivering frame can be quickly disassembled and assembled; the guide rail connecting device comprises a connecting shaft sleeve and a pin shaft;

the cofferdam base is connected with the lengthened guide rail through a pin shaft, the connecting lug seats and the connecting sleeve are automatically aligned when the cofferdam base is used for installation and are fixedly connected together through the pin shaft, the pin shaft is pulled out when the cofferdam base is moved, the cofferdam base and the connecting sleeve are closed together to facilitate hoisting, and the cofferdam base and the lengthened guide rail are connected together to form a plane;

the cofferdam base and the lengthened guide rail are rack guide rails welded on an H-shaped steel surface and are in contact connection with each other to form seamless butt joint.

4. The automatic pipe arranging device for the oil field well repairing operation according to claim 1, wherein the oil pipe receiving and delivering frame comprises a fixed frame, a lifting oil cylinder, a stabilizing frame, a supporting beam, a telescopic oil cylinder and a hydraulic system; two fixing frames are arranged on the cofferdam base, and the front end fixing frame is fixedly connected with one end of the supporting beam; the front end fixing frame plays a role in supporting and leveling the supporting beam after the supporting beam falls down, and the rear end fixing frame is connected with the rear end lug seat of the supporting beam through a pin shaft; the middle position of the bottom of the supporting beam is arranged on the cofferdam base through a stabilizing frame, one end of the stabilizing frame is connected with an ear seat of the cofferdam base through a pin shaft, the other end of the stabilizing frame is in sliding connection on the supporting beam through a roller, the roller of the stabilizing frame slides along with the lifting and falling of the supporting beam, and the stabilizing frame has the function of ensuring the stability of the supporting beam after the supporting beam is lifted and does not shake left and right;

a bearing seat of the front end fixing frame is connected with a lifting oil cylinder through a pin shaft, and the other end of the lifting oil cylinder is connected with an ear seat of the supporting beam through a pin shaft;

one end of the telescopic oil cylinder is fixed inside the telescopic beam, and the other end of the telescopic oil cylinder is connected with the lug seat of the supporting beam through a pin shaft;

an electromagnetic valve (24V) of the hydraulic system is connected to a PLC (programmable logic controller) of the electric control system through a signal wire, is set through a liquid screen of the PLC, and is operated and controlled through setting time, controlling hydraulic flow, a travel switch, an encoder and the like;

the telescopic beam consists of a rectangular pipe, H-shaped steel and a rear baffle, the H-shaped steel is welded on the rectangular pipe, 2 carbon fiber rods separated by a certain size are laid and fixed on the H-shaped steel to form a groove, so that an oil pipe falls and is clamped on the groove and does not swing left and right, the oil pipe and the groove protect an oil pipe thread from being damaged when sliding downwards at a certain angle, and the rear baffle blocks the oil pipe from being positioned;

the fixed mount is fixed on the cofferdam base through the oil pipe delivery frame connecting lug seat.

5. The automatic pipe arranging device for the oilfield workover treatment according to claim 4, wherein the movement stroke of the tubing receiving and sending frame comprises receiving and sending tubing to a wellhead, and the following steps are carried out:

when a wellhead oil pipe is connected, a supporting beam is lifted to a preset height or angle by a lifting oil cylinder, the preset height and angle are lifted to positions convenient to operate according to different heights of a wellhead, the telescopic oil cylinder is controlled by a telescopic button and a retraction button of a one-key operation table to extend, the telescopic beam extends to the wellhead position, the oil pipe falls into the telescopic beam, the telescopic beam retracts after an elevator is removed, the lifting oil cylinder retracts, the supporting beam returns to a parallel position, the automatic pipe arranging device is in place, the oil pipe is taken away to be placed at a preset position, and the lifting oil cylinder is lifted to run repeatedly after the automatic pipe arranging device leaves;

when sending oil pipe to the well head, automatic calandria device drives the portal frame through the good program that PLC set up and comes the back-and-forth movement, hydraulic pressure permanent magnetism sucking disc reciprocates and realizes adsorbing oil pipe and automatic putting, oil pipe places flexible roof beam the inside and leaves the back, lift a supporting beam and lift predetermined height and angle, flexible hydro-cylinder stretches out, flexible roof beam extends the well head position, the elevator taks away oil pipe away, after oil pipe leaves flexible roof beam, flexible roof beam contracts, lift the hydro-cylinder withdrawal, a supporting beam gets back to parallel position and waits for next oil pipe to target in place, the repetitive operation.

6. The automatic pipe arranging device for the oilfield workover treatment according to claim 1, wherein the hydraulic permanent magnet sucker comprises a guide seat, a permanent magnet sucker, a fixed support, a speed reducer and a hydraulic motor;

the top of the guide seat is provided with four columnar structures connected with the lifting device; the bottom of the guide seat is connected with the permanent magnetic chuck;

a fixed support is arranged on one side of the permanent magnetic chuck, a speed reducer is arranged in the fixed support, and the permanent magnetic chuck is in driving connection with the hydraulic motor through the speed reducer;

the hydraulic motor drives the speed reducer to drive the permanent magnet sucker rotating shaft to rotate so as to realize adsorption and release on the oil pipe, and the speed reducer has a self-locking function.

7. The automatic pipe arranging device for the oilfield workover treatment according to claim 1, wherein the length measuring device comprises a rack guide rail frame, a travel switch, a roller frame body, a low-pressure servo reducer, a driving gear and a touch rod; the rack guide rail frame is installed on the portal frame through screw connection, and the rack guide rail frame is installed in parallel with the portal frame through a transverse guide rail; the low-pressure servo speed reducer is arranged on the rack guide rail frame through the roller frame body,

the driving gear is arranged on an output shaft of the low-pressure servo speed reducer, the low-pressure servo speed reducer is fixed on the roller frame body and meshed with the rack on the rack guide rail frame, and the roller frame body is driven to move back and forth on the rack guide rail frame; a travel switch is installed below the roller frame body, a touch rod of the travel switch triggers a contact inside the travel switch to send a signal through rotating to a certain angle, so that the position of the low-voltage servo speed reducer at the moment is determined and the signal is sent to a PLC program of an electric control system, the PLC program calculates the length of the oil pipe to be measured through a set program, records the length, the number and the total length of the oil pipe to be measured, and displays the length, the number and the total length on a liquid screen for inquiry;

when measuring the length, the low-pressure servo speed reducers at two ends drive the roller frame body to be close to the end head of the oil pipe, when the touch rods of the travel switch are contacted with the end head of the oil pipe, the contact inside the travel switch is excited to send a signal, the low-pressure servo speed reducers stop, send the signal to a PLC program of the electric control system and return to the original point position, and after the touch rods at two ends send the signal to the PLC program of the electric control system, the PLC program calculates the length of the oil pipe and the like to work, and the work is carried out next time;

the low-voltage servo speed reducer and the travel switch are connected with a PLC control program in the electric control system through cables to process relevant information and display the information on the liquid screen for inquiry.

8. The automatic pipe arranging device for the oilfield workover treatment according to claim 7, wherein the distance between the origin points of the low-pressure servo reducers is 10m, after the oil pipe is lifted by the lifting device to a certain position, the two servo motors simultaneously advance to the inner oil pipe, stop when the end of the oil pipe is touched, after the two low-pressure servo reducers are touched, the PLC program simultaneously calculates the length of the oil pipe according to the advancing distance of the low-pressure servo reducers after returning to the origin points, records data such as the number of meters, the number of the oil pipes and the total length, and the like, and stores the data in a system for retrieval at any time, wherein the error is less than or equal to 2mm, the measurement of the shortest oil pipe is 8.5m, and the length of the rack guide rail.

Technical Field

The invention relates to an automatic pipe arranging device for workover treatment, in particular to an automatic pipe arranging device for oilfield workover treatment.

Background

Tubing is the pipe that transports crude oil and natural gas from the hydrocarbon reservoir to the surface after drilling is complete and is used to withstand the pressures generated during production. In order to ensure that oil pipes put into or taken out of a well are neatly and compactly arranged on a ground oil pipe frame and avoid disordered discharge of the oil pipes put out or put into the well and damage of the oil pipes, most of the prior art adopts manual discharge, and the labor intensity is high and the efficiency is low. In the prior art, 3 automatic coiled tubing roller pipe arrangement control systems of mechanical type, hydraulic type and electric control type are designed, the mechanical type pipe arrangement is low in cost, but large in occupied space of equipment and low in transmission precision, the hydraulic type pipe arrangement is high in reliability, special explosion-proof treatment is not needed, stepless speed change can be achieved, but control is relatively complex, and the electric control type pipe arrangement is high in transmission precision, but high in cost, and special explosion-proof treatment is needed.

At present, the oil field well repairing operation industry is carrying out mechanical, automatic and intelligent upgrading and reconstruction.

Disclosure of Invention

The invention mainly solves the technical problem of how to provide an automatic pipe arranging device for oilfield workover operation, which realizes full hydraulic drive after upgrading, 24V safe voltage control and lifting, discharging and measuring work of a pipe rod.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the automatic pipe arranging device for the oil field well workover operation is characterized by structurally comprising a portal frame, a one-key operation table, a cofferdam base, a lengthened guide rail, an oil pipe receiving and sending frame, a hydraulic permanent magnetic chuck, a length measuring device, an electric control system, a hydraulic system and a lifting device; the gantry, the cofferdam base and the lengthened guide rail are used as main parts, a walking part is arranged at the bottom of the gantry, and the gantry walks on the cofferdam base and the lengthened guide rail of the base in a gear rack mode through hydraulic transmission to move the discharge oil pipe back and forth; the oil pipe receiving and delivering frame is fixed on the cofferdam base, the cofferdam base is also provided with an electric control system and a hydraulic system, the length measuring devices are arranged on two sides of the upper end of the portal frame in two groups, and the lifting device is arranged in the middle of the portal frame; hydraulic permanent magnetic chucks are arranged on two sides of the lifting device through guide seats; the one-key operation platform is arranged near the surface of a wellhead, is connected into an electric control system on the cofferdam base by a cable, is a small nearby operation platform consisting of four buttons of one-key starting, pausing, stretching and retracting and emergency stopping, is convenient for nearby operation, is convenient for controlling the running condition of the whole set of equipment nearby the wellhead, and is a part of the electric control system.

Preferably, the portal frame comprises a portal clamping seat, a tension wheel, a chain, a through shaft and a gear seat, wherein the portal clamping seat, the tension wheel, the chain, the through shaft and the gear seat are arranged on two sides of the portal frame, the through shafts on the two sides are connected through a coupling, and the hydraulic motor is in driving connection with the gear seat through the through shaft on one side.

Further, the gantry clamping seat is arranged at the lower end of the gantry frame, and a gear seat is arranged on the gantry clamping seat; the gear seat is connected with the through shaft through a tension wheel and a chain.

Preferably, the cofferdam base comprises H-shaped steel arranged on the left side and the right side, the middle of the cofferdam base is connected with a guard plate through a welded channel steel to form a frame structure, a rack guide rail is welded on the top surface of the H-shaped steel, and guide rail connecting devices are arranged on the two sides of the H-shaped steel; an oil pipe receiving and delivering frame connecting lug seat is arranged on a fixed support in the cofferdam base, so that the oil pipe receiving and delivering frame can be quickly disassembled and assembled; the guide rail connecting device comprises a connecting shaft sleeve and a pin shaft.

Preferably, a connecting shaft sleeve is arranged on a connecting end face of the cofferdam base, a connecting lug seat is arranged on a connecting end face of the lengthened guide rail, the cofferdam base is connected with the lengthened guide rail through a pin shaft, the connecting lug seat and the connecting shaft sleeve are automatically aligned when the cofferdam base is used and installed, the connecting lug seat and the connecting shaft sleeve are fixedly connected together through the pin shaft, the pin shaft is pulled out when the cofferdam base is moved, the connecting lug seat and the connecting shaft sleeve are closed together to facilitate hoisting, and.

Further, the cofferdam base and the lengthened guide rail are rack guide rails welded on an H-shaped steel surface and are in contact connection with each other to form seamless butt joint.

Preferably, the gantry clamping seat arranged at the lower end of the gantry is clamped on a rack guide rail welded on the H-shaped steel surface and linearly reciprocates along two ends of the cofferdam base, and the gear seat arranged on the gantry clamping seat is meshed with the rack guide rail.

Preferably, the oil pipe receiving and delivering frame comprises a fixed frame, a lifting oil cylinder, a stabilizing frame, a supporting beam, a telescopic oil cylinder and a hydraulic system; two fixing frames are arranged on the cofferdam base, and the front end fixing frame is fixedly connected with one end of the supporting beam; the front end fixing frame plays a role in supporting and leveling the supporting beam after the supporting beam falls down, and the rear end fixing frame is connected with the rear end lug seat of the supporting beam through a pin shaft; a supporting beam bottom intermediate position passes through the installation of firm frame and sets up on the cofferdam base, and firm frame one end is connected with the ear seat of cofferdam base through the round pin axle, and the other end passes through gyro wheel sliding connection on a supporting beam, and the gyro wheel of firm frame is along with lifting, the slip that falls of a supporting beam, and its effect is exactly and guarantees a supporting beam after a supporting beam lifts to stabilize, does not rock about.

The bearing seat of the front end fixing frame is connected with the lifting oil cylinder through a pin shaft, and the other end of the lifting oil cylinder is connected with the lug seat of the supporting beam through a pin shaft.

One end of the telescopic oil cylinder is fixed inside the telescopic beam, and the other end of the telescopic oil cylinder is connected with the lug seat of the supporting beam through a pin shaft.

An electromagnetic valve (24V) of the hydraulic system is connected to a PLC (programmable logic controller) of the electric control system through a signal wire, is set through a liquid screen of the PLC, and is operated and controlled through setting time, controlling hydraulic flow, a travel switch, an encoder and the like.

The telescopic beam is composed of a rectangular pipe, H-shaped steel and a rear baffle, the H-shaped steel is welded on the rectangular pipe, 2 carbon fiber rods which are separated by a certain size are laid and fixed on the H-shaped steel to form a groove, the oil pipe falls down to be clamped on the groove and does not swing left and right, the oil pipe and the groove protect an oil pipe thread from being damaged when sliding downwards at a certain angle, and the rear baffle blocks the oil pipe for positioning.

Preferably, the fixing frame is fixed on the cofferdam base through an oil pipe receiving and delivering frame connecting lug seat.

Preferably, the movement stroke of the oil pipe receiving and sending frame comprises the following steps of receiving a wellhead oil pipe and sending the oil pipe to a wellhead:

when a wellhead oil pipe is connected, the supporting beam is lifted to a preset height or angle by the lifting oil cylinder (the preset height and angle are lifted to positions convenient to operate according to different heights of a wellhead), the telescopic oil cylinder is controlled by a telescopic and retraction button of a one-key operation table to extend, the telescopic beam extends to the wellhead position, the oil pipe falls into the telescopic beam, the telescopic beam retracts after the elevator is removed, the lifting oil cylinder retracts, the supporting beam returns to a parallel position, the automatic pipe arranging device is in place and takes away the oil pipe to be placed at a preset position, and after the automatic pipe arranging device leaves, the lifting oil cylinder is lifted to run repeatedly.

When sending oil pipe to the well head, automatic calandria device drives the portal frame through the good program that PLC set up and comes the back-and-forth movement, hydraulic pressure permanent magnetism sucking disc reciprocates and realizes adsorbing oil pipe and automatic putting, oil pipe places flexible roof beam the inside and leaves the back, lift a supporting beam and lift predetermined height and angle, flexible hydro-cylinder stretches out, flexible roof beam extends the well head position, the elevator taks away oil pipe away, after oil pipe leaves flexible roof beam, flexible roof beam contracts, lift the hydro-cylinder withdrawal, a supporting beam gets back to parallel position and waits for next oil pipe to target in place, the repetitive operation.

Preferably, the hydraulic permanent magnetic chuck comprises a guide seat, a permanent magnetic chuck, a fixed support, a speed reducer and a hydraulic motor;

the top of the guide seat is provided with four columnar structures connected with the lifting device; the bottom of the guide seat is connected with the permanent magnetic chuck;

one side of the permanent magnetic chuck is provided with a fixed support, a speed reducer is arranged in the fixed support, and the permanent magnetic chuck is connected with the hydraulic motor through the speed reducer in a driving mode.

Further the hydraulic motor drives the speed reducer to drive the permanent magnet sucker rotating shaft to rotate so as to realize adsorption and release of the oil pipe, and the speed reducer has a self-locking function.

Preferably, the length measuring device comprises a rack guide rail frame, a travel switch, a roller frame body, a low-voltage servo speed reducer, a driving gear and a touch rod; the rack guide rail frame is installed on the portal frame through screw connection, and the rack guide rail frame is installed in parallel with the portal frame through a transverse guide rail; the low-pressure servo speed reducer is arranged on the rack guide rail frame through the roller frame body,

the driving gear is installed on an output shaft of the low-pressure servo speed reducer, the low-pressure servo speed reducer is fixed on the roller frame body and meshed with the rack on the rack guide rail frame, and the roller frame body is driven to move back and forth on the rack guide rail frame. The travel switch is installed below the roller frame body, a touch rod of the travel switch triggers a contact inside the travel switch to send a signal through rotating to a certain angle, the position of the low-voltage servo speed reducer at the moment is determined, the PLC program sends the signal to the electric control system, the PLC program calculates the length of the oil pipe to be measured through the set program, the length, the number and the total length of the oil pipe to be measured are recorded, and the length, the number and the total length are displayed on the liquid screen for inquiry.

When the length is measured, the low-pressure servo speed reducers at two ends drive the roller frame bodies to be close to the end heads of the oil pipes, when the touch rods of the travel switches are in contact with the ends of the oil pipes, contacts inside the travel switches are excited to send signals, the low-pressure servo speed reducers stop, send signals to a PLC program of the electric control system and return to the original point position, and after the touch rods at the two ends send signals to the PLC program of the electric control system, the PLC program calculates the length of the oil pipes and the like to carry out work next time.

The low-voltage servo speed reducer and the travel switch are connected with a PLC control program in the electric control system through cables to process relevant information and display the information on the liquid screen for inquiry.

Further, the original point distance of the low-pressure servo reducer is 10m, after the lifting device lifts the oil pipe to the place, the two servo motors simultaneously advance to the inner oil pipe, the two servo motors stop when touching the end of the oil pipe, after the two low-pressure servo reducers touch, the PLC program simultaneously calculates the length of the oil pipe according to the advancing distance of the low-pressure servo reducers after returning to the original point, and records data such as the number of meters, the number of roots and the total length of each oil pipe, the data are stored in the system for being read at any time, the error is less than or equal to 2mm, and the measurement of the shortest oil pipe is 8. (the length of the rack guide rail bracket can also be increased, so that the measuring distance is further shortened).

The gantry crane can effectively solve the problems in the prior art, and has the advantages of simple, stable and reliable design structure, good synchronization performance, small error and higher automatic application effect; the cofferdam base has simple, stable and reliable design structure, quick and convenient field installation and disassembly, low cost, reduced ground pollution and obviously improved environmental protection effect; the permanent magnetic chuck is simple, stable and reliable in design structure and small in size, the permanent magnetic chuck is large in rotating torque through a speed reducer, a high-voltage power supply is not needed, the comprehensive safety is high, and the cost is low; the measuring device is also provided with a PLC controller to realize automatic one-key control to realize the whole travel of the oil receiving and delivering pipes, the oil loading and unloading pipes and the oil discharging pipes, the length measurement of each oil pipe, the number counting of the oil pipes and the total length of the oil pipes are automatically completed during operation, and the operation is stable and accurate; the automatic pipe arranging device can reduce the number of workover personnel, lighten the labor intensity of the personnel, save the workover maintenance cost, prevent oil stains from falling to the ground, protect and prevent environmental pollution, is an extensible technical innovation for the prior art, and has good popularization and use values.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic view of a gantry structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cofferdam base construction of an embodiment of the invention;

FIG. 4 is a schematic view of the connection between the cofferdam base and the extended guide rail according to the embodiment of the present invention;

FIG. 5 is a schematic view showing the connection state of the cofferdam base and the extended guide rail according to the embodiment of the present invention;

FIG. 6 is a schematic structural view of a connection relationship between a cofferdam base, a lengthened guide rail, an oil pipe pick-up frame and a portal frame according to an embodiment of the invention;

FIG. 7 is a schematic structural view of a connection relationship between an oil pipe pick-up rack and a cofferdam base according to an embodiment of the invention;

FIG. 8 is a schematic view of a groove structure of the telescopic beam of the oil pipe pick-up frame for receiving oil pipes according to the embodiment of the invention;

FIG. 9 is a schematic diagram of a hydraulic permanent magnet chuck configuration according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a length measuring device according to an embodiment of the present invention;

FIG. 11 is a left side schematic view of the structure of FIG. 10;

FIG. 12 is a schematic view showing the installation relationship between the length measuring device and the portal frame according to the embodiment of the present invention;

reference numerals:

1-a portal frame; 11-gantry clamping seat; 12-a tension wheel; 13-a chain; 14-through shaft; 15-a coupler; 16-a hydraulic motor; 17-a gear seat; 2-one-key console; 3-cofferdam base; 31-H section steel; 32-rack guide rail; 33-guide rail connection means; 331-connecting the shaft sleeve; 332-a pin shaft; 34-the oil pipe transferring frame is connected with the lug seat; 35-channel steel; 36-a guard plate; 4-lengthening the guide rail; 41-connecting ear seat; 5-oil pipe receiving and delivering frame; 51-a fixed mount; 52-lifting oil cylinder; 53-a stabilizing frame; 54-support beam; 55-beam shrinking; 56-telescopic oil cylinder; 57-hydraulic system; 6-hydraulic permanent magnetic chuck; 61-a guide seat; 62-permanent magnetic chuck; 63-fixing the bracket; 64-a speed reducer; 65-a hydraulic motor; 7-length measuring device; 71-a rack guide rail bracket; 72-a travel switch; 73-roller frame body; 74-low pressure servo reducer; 75-a drive gear; 76-touch lever; 8-an electronic control system; 9-a hydraulic system; 10-lifting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, in an embodiment of the present invention, an automatic pipe arrangement device for oilfield workover operations includes a gantry 1, a key console 2, a cofferdam base 3, a lengthened guide rail 4, an oil pipe receiving and delivering frame 5, a hydraulic permanent magnetic chuck 6, a length measuring device 7, an electric control system 8, a hydraulic system 9, and a lifting device 10; the gantry 1, the cofferdam base 3 and the lengthened guide rail 4 are used as main parts, a walking part is arranged at the bottom of the gantry 1, and the walking part walks on the cofferdam base 3 and the lengthened guide rail 4 of the base in a gear and rack mode through hydraulic transmission to move the discharge oil pipe back and forth; the oil pipe receiving and delivering frame 5 is fixed on the cofferdam base 3, an electric control system 8 and a hydraulic system 9 are further arranged on the cofferdam base 3, the length measuring devices 7 are divided into two groups and arranged on two sides of the upper end of the portal frame 1, and the lifting device 10 is arranged in the middle of the portal frame 1; the two sides of the lifting device 10 are provided with hydraulic permanent magnetic chucks 6 through guide seats; the one-key operation platform 2 is arranged near the surface of a wellhead, is connected into an electric control system 8 on the cofferdam base 3 through a cable, is a small operation platform nearby and consists of four buttons of one-key starting, pausing, extending and retracting and emergency stopping, is convenient for nearby operation, is convenient for controlling the running condition of the whole set of equipment nearby the wellhead, and is a part of the electric control system.

In the specific implementation process, the portal frame 1 comprises a portal clamping seat 11, a tension wheel 12, a chain 13, a through shaft 14 and a gear seat 17, wherein the portal clamping seat 11, the tension wheel 12, the chain 13, the through shaft 14 and the gear seat 17 are arranged on two sides, the through shafts on the two sides are connected through a coupler 15, and a hydraulic motor 16 is in driving connection with the gear seat 17 through the through shaft 14 on one side.

In the specific implementation process, the gantry clamping seat 11 is arranged at the lower end of the gantry 1, and the gear seat 17 is arranged on the gantry clamping seat 11; the gear seat 17 is connected with the through shaft 14 through the tension wheel 12 and the chain 13.

In the specific implementation process, the cofferdam base 3 comprises H-shaped steel 31 arranged on the left side and the right side, the middle of the cofferdam base is connected and arranged into a frame structure through a welded channel steel 35 and a guard plate 36, a rack guide rail 32 is welded on the top surface of the H-shaped steel 31, and guide rail connecting devices 33 are arranged on the two sides of the H-shaped steel 31; an oil pipe receiving and delivering frame connecting lug seat 34 is arranged on a fixed support in the cofferdam base 3, so that the oil pipe receiving and delivering frame 5 can be quickly disassembled and assembled; the rail coupling device 33 includes a coupling boss 331 and a pin 332.

In the specific implementation process, a connecting shaft sleeve 331 is arranged on a connecting end face of the cofferdam base 3, a connecting lug seat 41 is arranged on a connecting end face of the lengthened guide rail 4, the cofferdam base 3 is connected with the lengthened guide rail 4 through a pin shaft 332, the connecting lug seat 41 and the connecting shaft sleeve 331 are automatically aligned when the cofferdam base is used and installed, the connecting lug seat and the connecting shaft sleeve 331 are fixedly connected together through the pin shaft 332, the pin shaft 332 is pulled out when the cofferdam base is moved, the connecting lug seat and the connecting shaft sleeve 331 are closed together to.

In the specific implementation process, the cofferdam base 3 and the lengthened guide rail 4 are both rack guide rails welded on an H-shaped steel surface and are in contact connection with each other to form seamless butt joint.

In the specific implementation process, a gantry clamping seat 11 arranged at the lower end of the portal frame 1 is clamped on a rack guide rail 32 welded on an H-shaped steel surface and linearly reciprocates along two ends of the cofferdam base 3, and a gear seat 17 arranged on the gantry clamping seat 11 is meshed with the rack guide rail 32.

In the specific implementation process, the oil pipe receiving and delivering frame 5 comprises a fixed frame 51, a lifting oil cylinder 52, a stable frame 53, a supporting beam 54, a telescopic beam 55, a telescopic oil cylinder 56 and a hydraulic system 57; two fixing frames 51 are arranged on the cofferdam base 3, and the front fixing frame 51 is fixedly connected with one end of a supporting beam 54; the front end fixing frame 51 plays a role in supporting and leveling the supporting beam 54 after the supporting beam 54 falls down, and the rear end fixing frame 51 is connected with the rear end lug seat of the supporting beam 54 through a pin shaft; the middle position of the bottom of the supporting beam 54 is arranged on the cofferdam base 3 through the stabilizing frame 53, one end of the stabilizing frame 53 is connected with the lug seat of the cofferdam base 3 through a pin shaft, the other end of the stabilizing frame 53 is connected on the supporting beam 54 in a sliding manner through a roller, the roller of the stabilizing frame 53 slides along with the lifting and falling of the supporting beam 54, and the stabilizing frame has the effect of ensuring the stability of the supporting beam 54 after the supporting beam 54 is lifted and does not shake left and right.

The bearing seat of the front end fixing frame 51 is connected with the lifting oil cylinder 52 through a pin shaft, and the other end of the lifting oil cylinder 52 is connected with the lug seat of the supporting beam 54 through a pin shaft.

One end of the telescopic oil cylinder 56 is fixed inside the telescopic beam 55, and the other end is connected with the lug seat of the support beam 54 through a pin shaft.

An electromagnetic valve (24V) of the hydraulic system 57 is connected to a PLC controller of the electric control system 8 through a signal wire, is set through a liquid screen of the PLC controller, and is operated and controlled through setting time, controlling hydraulic flow, a travel switch, an encoder and the like.

The telescopic beam 55 is composed of a rectangular pipe, H-shaped steel and a rear baffle, the H-shaped steel is welded on the rectangular pipe, 2 carbon fiber rods which are laid on the H-shaped steel and are fixedly separated from each other by a certain size form a groove, the oil pipe falls down to be clamped on the groove, the left and right swinging is avoided, the oil pipe and the groove protect an oil pipe thread from being damaged when sliding downwards at a certain angle, and the rear baffle blocks the oil pipe for positioning.

In the specific implementation process, the fixing frame 51 is fixed on the cofferdam base 3 through the oil pipe receiving and delivering frame connecting lug seat 34.

In the specific implementation process, the movement stroke of the oil pipe receiving and sending frame comprises the following steps of receiving a wellhead oil pipe and sending the oil pipe to a wellhead:

when a wellhead oil pipe is connected, the supporting beam 54 is lifted to a preset height or angle by the lifting oil cylinder 52, (the preset height and angle are lifted to positions convenient to operate according to different heights of the wellhead), (the telescopic oil cylinder 56 is controlled by a telescopic button and a retraction button of the one-key operation table 2 to extend, the telescopic beam 55 extends to the wellhead position, the oil pipe falls into the telescopic beam 55, the telescopic beam 55 retracts after the elevator is removed, the lifting oil cylinder 56 retracts, the supporting beam 54 returns to the parallel position, the automatic pipe arranging device is in place and taken out to place at a preset position, and after the automatic pipe arranging device leaves, the lifting oil cylinder 52 is lifted to operate repeatedly.

When an oil pipe is conveyed to a wellhead, the automatic pipe arranging device drives the portal frame 1 to move back and forth through a program set by a PLC, the hydraulic permanent magnet sucker 6 moves up and down to realize oil pipe adsorption and automatic placement, after the oil pipe is placed in the telescopic beam 55 to leave, the supporting beam 54 is lifted to a preset height and angle by the lifting oil cylinder 52, the telescopic oil cylinder 56 stretches out, the telescopic beam 55 extends to the wellhead position, the elevator takes away the oil pipe, after the oil pipe leaves the telescopic beam 55, the telescopic beam 55 retracts, the lifting oil cylinder 52 retracts, the supporting beam 54 returns to a parallel position to wait for the next oil pipe to be in place, and the operation is repeated.

In the specific implementation process, the hydraulic permanent magnetic chuck 6 comprises a guide seat 61, a permanent magnetic chuck 62, a fixed support 63, a speed reducer 64 and a hydraulic motor 65;

the top of the guide seat 61 is provided with four columnar structures connected with the lifting device 10; the bottom of the guide seat 61 is connected with the permanent magnetic chuck 62;

one side of the permanent magnetic chuck 62 is provided with a fixed support 63, a speed reducer 64 is arranged in the fixed support 63, and the permanent magnetic chuck 62 is in driving connection with a hydraulic motor 65 through the speed reducer 64.

In the specific implementation process, the hydraulic motor 65 drives the speed reducer 64 to drive the rotating shaft of the permanent magnet sucker 62 to rotate so as to realize the adsorption and release of the oil pipe, and the speed reducer 64 has a self-locking function.

In the specific implementation process, the length measuring device 7 comprises a rack guide rail frame 71, a travel switch 72, a roller frame body 73, a low-pressure servo reducer 74, a driving gear 75 and a touch rod 76; the rack guide rail frame 71 is installed on the portal frame 1 through screw connection, and the rack guide rail frame 71 is a transverse guide rail and is installed in parallel with the portal frame; a low-pressure servo reducer 74 is mounted on the rack guide bracket 71 through a roller bracket body 73,

the driving gear 75 is mounted on an output shaft of the low-pressure servo reducer 74, the low-pressure servo reducer 74 is fixed on the roller frame body 73 and meshed with the rack on the rack guide rail frame 71, and the roller frame body 73 is driven to move back and forth on the rack guide rail frame 71. A travel switch is installed below the roller frame body 73, a touch rod 76 of the travel switch triggers a contact inside the travel switch to send a signal by rotating to a certain angle, so that the position of the low-voltage servo speed reducer 74 at the moment is determined, the PLC program sends a signal to the electric control system 8, the PLC program calculates the length of the oil pipe to be measured through a set program, records the length, the number and the total length of the oil pipe to be measured, and displays the length, the number and the total length on a liquid screen for inquiry.

During measurement, the low-pressure servo speed reducers 74 at the two ends drive the roller frame bodies 73 to be close to the end heads of the oil pipes, when the touch rods 76 of the travel switches contact the ends of the oil pipes, contacts inside the travel switches are excited to send signals, the low-pressure servo speed reducers 74 stop to send signals to the PLC program of the electric control system 8 and return to the original point position, and after the touch rods 76 at the two ends send signals to the PLC program of the electric control system, the PLC program calculates the length of the oil pipes and the like to work, and the work is carried out next time.

The low-voltage servo speed reducer 74 and the travel switch are connected with a PLC control program in the electric control system through cables to process relevant information and display the information on a liquid screen for inquiry.

In the specific implementation process, the original point distance of the low-pressure servo reducer is 10m, after the lifting device lifts the oil pipe in place, two servo motors simultaneously advance to the inner oil pipe, the two servo motors stop when touching the end of the oil pipe, after the two low-pressure servo reducers touch, the original point is returned, the PLC program calculates the length of the oil pipe according to the advancing distance of the low-pressure servo reducers during the touch, and records data such as the number of meters, the number of roots and the total length and stores the data in the system for being read at any time, the error is less than or equal to 2mm, and the shortest oil pipe is measured to be 8.5. (the length of the rack guide rail bracket can also be increased, so that the measuring distance is further shortened).

The gantry crane can effectively solve the problems in the prior art, and has the advantages of simple, stable and reliable design structure, good synchronization performance, small error and higher automatic application effect; the cofferdam base has simple, stable and reliable design structure, quick and convenient field installation and disassembly, low cost, reduced ground pollution and obviously improved environmental protection effect; the permanent magnetic chuck is simple, stable and reliable in design structure and small in size, the permanent magnetic chuck is large in rotating torque through a speed reducer, a high-voltage power supply is not needed, the comprehensive safety is high, and the cost is low; the measuring device is also provided with a PLC controller to realize automatic one-key control to realize the whole travel of the oil receiving and delivering pipes, the oil loading and unloading pipes and the oil discharging pipes, the length measurement of each oil pipe, the number counting of the oil pipes and the total length of the oil pipes are automatically completed during operation, and the operation is stable and accurate; the automatic pipe arranging device can reduce the number of workover personnel, lighten the labor intensity of the personnel, save the workover maintenance cost, prevent oil stains from falling to the ground, protect and prevent environmental pollution, is an extensible technical innovation for the prior art, and has good popularization and use values.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.