阅读说明：本技术 振动器以及振动数据的获取方法 (Vibrator and method for acquiring vibration data ) 是由 黄文君 石小磊 高德利 于 2020-06-12 设计创作，主要内容包括：本申请提供了一种振动器以及振动数据的获取方法,振动器包括：具有第一导流腔室和第二导流腔室的振动体,振动体还具有设置在第一导流腔室和第二导流腔室之间的工作腔室；工作腔室分别与第一导流腔室和第二导流腔室连通；工作腔室内设置有靠近第一导流腔室的第一端面和靠近第二导流腔室的第二端面,以及在第一端面和第二端面分别形成有撞击部；在工作腔室内设置有驱动件；与振动体连接的动力组件；动力组件能驱动第一导流腔室和第二导流腔室内的流体流动,以带动驱动件撞击第一端面的撞击部,或者撞击第二端面的撞击部。本申请能够用于管柱振动的模拟和评价,从而获取合理的振动参数,为管柱在实钻中的安全高效作业提供指导依据。(The application provides a vibrator and a method for acquiring vibration data, wherein the vibrator comprises: the vibrating body is provided with a first flow guide chamber and a second flow guide chamber, and the vibrating body is also provided with a working chamber arranged between the first flow guide chamber and the second flow guide chamber; the working chamber is respectively communicated with the first flow guide chamber and the second flow guide chamber; a first end face close to the first diversion chamber and a second end face close to the second diversion chamber are arranged in the working chamber, and impact parts are respectively formed on the first end face and the second end face; a driving part is arranged in the working chamber; a power assembly connected to the vibrating body; the power assembly can drive fluid in the first diversion cavity and the second diversion cavity to flow so as to drive the driving piece to impact the impact part of the first end face or impact the impact part of the second end face. The method and the device can be used for simulating and evaluating the vibration of the tubular column, so that reasonable vibration parameters are obtained, and a guiding basis is provided for safe and efficient operation of the tubular column in the real drill.)

1. A vibrator, comprising:

the vibrating body is provided with a first flow guide chamber and a second flow guide chamber, and the vibrating body is also provided with a working chamber arranged between the first flow guide chamber and the second flow guide chamber; the working chamber is respectively communicated with the first flow guide chamber and the second flow guide chamber; a first end face close to the first flow guide cavity and a second end face close to the second flow guide cavity are arranged in the working cavity, and impact parts are respectively formed on the first end face and the second end face; a driving part is arranged in the working chamber;

a power assembly connected to the vibrating body; the power assembly can drive fluid in the first diversion cavity and the second diversion cavity to flow so as to drive the driving piece to impact the impact part of the first end face or impact the impact part of the second end face.

2. A vibrator according to claim 1, characterized in that the power assembly comprises:

a pressure supply mechanism for supplying a fluid;

the first flow channel is arranged between the pressure supply mechanism and the first flow guide cavity;

the second flow passage is arranged between the pressure supply mechanism and the second flow guide cavity;

the valve is arranged on the flow passage or between the flow passage and the pressure supply mechanism;

and the controller is electrically connected with the valve and controls the valve to be alternately communicated with the first flow passage and the second flow passage so that the pressure supply mechanism alternately supplies fluid to the first flow passage and the second flow passage.

3. The vibrator according to claim 2, wherein the valve is a two-position four-way solenoid valve, and comprises a valve body and a switching mechanism arranged in the valve body, and the valve body is provided with: the pressure supply device comprises a first interface, a second interface, a third interface and a fourth interface, wherein the first interface is connected with the pressure supply mechanism, the second interface is connected with the first flow passage, the third interface is connected with the second flow passage, and the fourth interface is communicated with the outside;

the controller controls the switch mechanism to alternately connect the first port to the second port and the third port, and when the first port is connected to one of the second port and the third port, the other of the second port and the third port is connected to the fourth port.

4. A vibrator according to claim 3, characterized in that the pressure supply mechanism comprises: a gas pump for providing gas; the main flow passage is arranged between the air pump and the first interface, and an air quantity control valve used for adjusting air quantity parameters is arranged on the main flow passage.

5. The vibrator of claim 3, wherein the fourth port communicates with a muffler.

6. A vibrator according to claim 1, characterized in that the vibrator comprises a support assembly comprising: the support is provided with a first surface and a second surface opposite to the first surface, the first surface is used for supporting the vibration body, and the second surface is provided with at least one elastic piece; and the connecting mechanism is used for fixing the bracket and the vibrating body.

7. The vibrator according to claim 1, wherein the vibrator body comprises: the cylinder body is arranged between the first mounting base body and the second mounting base body; the mounting base body is provided with a flow guide cavity and a bypass hole communicated with the flow guide cavity, the bypass hole is used for circulating the fluid medium, the mounting base body is provided with an open end and a closed end opposite to the open end, the cylinder body is connected with the mounting base body through the open end, and the closed end of the mounting base body is fixedly connected with an intermediate joint.

8. The vibrator according to claim 6, wherein the vibrator body has a cylindrical structure, and the connecting mechanism comprises: the pressing plate is provided with a pressing section and fixing sections located on two sides of the pressing section, the pressing section is provided with an arc-shaped structure matched with the cylindrical structure, and the fixing sections are fixed with the first surface through locking units.

9. The vibrator according to claim 1, wherein the vibrator body defines a first axis in a first direction, and the working chamber defines a second axis in a second direction between the first end surface and the second end surface, the first axis coinciding with the second axis.

10. A method of acquiring vibration data using a vibrator according to claim 2, the method comprising:

the simulation pipe column is lowered into the simulation shaft; wherein, the simulation tubular column includes: the simulation pipe column is provided with a starting end and a free end opposite to the starting end in the lengthwise extension direction, the starting end is close to the wellhead of the simulation shaft, the starting end is provided with a first pressure sensor, the free end is provided with a second pressure sensor, and a well wall of the simulation shaft is provided with a displacement detector;

applying a load to the starting end, receiving first data measured by the first pressure sensor and second data measured by the second pressure sensor;

when the difference value of the first data and the second data is larger than a preset value, the pressure supply mechanism is opened, the driving piece is driven to reciprocate between the first end face and the second end face of the working chamber and impact the impact part, and vibration is generated;

and in the vibration process, acquiring displacement data measured by the displacement detector.

Technical Field

The application relates to the technical field of oil and natural gas engineering, in particular to a vibrator and a vibration data acquisition method.

Background

Oil reservoir resources in complex areas such as mountainous regions, swamps and oceans at home and abroad usually adopt well types with complex structures such as horizontal wells, extended reach wells and the like. These well types have relatively large well inclination angles relative to conventional vertical wells, and the horizontal extension of the well bore in the reservoir for a substantial distance increases the contact area with the hydrocarbon reservoir, thus becoming an important means for increasing well productivity and recovery.

The pipe columns in the horizontal well and the extended reach well are usually in an eccentric state under the action of self weight and are easy to attach to the bottom of a well hole, so that the descending resistance of the pipe columns is increased. Particularly, under the sliding drilling working condition, the pipe column is drilled in a non-rotary drilling mode in the drilling process, the generated friction resistance value is higher, so that the drilling pressure is difficult to effectively transfer to the bottom of a well, the pressure supporting phenomenon is formed, and the drilling efficiency is low. Under the working condition, the friction resistance value on the pipe column is increased along with the increase of the length of the well hole, so that the serious buckling of the pipe column is easy to occur, and the safety of production operation is threatened.

Disclosure of Invention

In order to solve the technical problem, the application provides a vibrator and a vibration data acquisition method, effective vibration can be applied to a tubular column, the vibrator can be used for simulating and evaluating the vibration of the tubular column, reasonable vibration parameters can be acquired, a guidance basis is provided for safe and efficient operation of the tubular column in a real drill, the vibrator is convenient to operate, and the use cost is low.

The technical scheme is as follows:

a vibrator, comprising:

the vibrating body is provided with a first flow guide chamber and a second flow guide chamber, and the vibrating body is also provided with a working chamber arranged between the first flow guide chamber and the second flow guide chamber; the working chamber is respectively communicated with the first flow guide chamber and the second flow guide chamber; a first end face close to the first flow guide cavity and a second end face close to the second flow guide cavity are arranged in the working cavity, and impact parts are respectively formed on the first end face and the second end face; a driving part is arranged in the working chamber;

a power assembly connected to the vibrating body; the power assembly can drive fluid in the first diversion cavity and the second diversion cavity to flow so as to drive the driving piece to impact the impact part of the first end face or impact the impact part of the second end face.

As a preferred embodiment, the power assembly includes:

a pressure supply mechanism for supplying a fluid;

the first flow channel is arranged between the pressure supply mechanism and the first flow guide cavity;

the second flow passage is arranged between the pressure supply mechanism and the second flow guide cavity;

the valve is arranged on the flow passage or between the flow passage and the pressure supply mechanism;

and the controller is electrically connected with the valve and controls the valve to be alternately communicated with the first flow passage and the second flow passage so that the pressure supply mechanism alternately supplies fluid to the first flow passage and the second flow passage.

As a preferred embodiment, the valve is specifically a two-position four-way solenoid valve, and includes a valve body and a switching mechanism disposed in the valve body, and the valve body is provided with: the pressure supply device comprises a first interface, a second interface, a third interface and a fourth interface, wherein the first interface is connected with the pressure supply mechanism, the second interface is connected with the first flow passage, the third interface is connected with the second flow passage, and the fourth interface is communicated with the outside;

the controller controls the switch mechanism to alternately connect the first port to the second port and the third port, and when the first port is connected to one of the second port and the third port, the other of the second port and the third port is connected to the fourth port.

As a preferred embodiment, the pressure supply mechanism includes: a gas pump for providing gas; the main flow passage is arranged between the air pump and the first interface, and an air quantity control valve used for adjusting air quantity parameters is arranged on the main flow passage.

In a preferred embodiment, the fourth port communicates with a muffler.

As a preferred embodiment, the vibrator includes a support assembly including: the support is provided with a first surface and a second surface opposite to the first surface, the first surface is used for supporting the vibration body, and the second surface is provided with at least one elastic piece; and the connecting mechanism is used for fixing the bracket and the vibrating body.

As a preferred embodiment, the vibrating body includes: the cylinder body is arranged between the first mounting base body and the second mounting base body; the mounting base body is provided with a flow guide cavity and a bypass hole communicated with the flow guide cavity, the bypass hole is used for circulating the fluid medium, the mounting base body is provided with an open end and a closed end opposite to the open end, the cylinder body is connected with the mounting base body through the open end, and the closed end of the mounting base body is fixedly connected with an intermediate joint.

As a preferred embodiment, the vibrating body has a cylindrical structure, and the connecting mechanism includes: the pressing plate is provided with a pressing section and fixing sections located on two sides of the pressing section, the pressing section is provided with an arc-shaped structure matched with the cylindrical structure, and the fixing sections are fixed with the first surface through locking units.

In a preferred embodiment, the oscillating body defines a first axis in a first direction, and the working chamber defines a second axis in a second direction between the first end face and the second end face, the first axis and the second axis being coincident.

A method for obtaining vibration data using the vibrator, the method comprising:

the simulation pipe column is lowered into the simulation shaft; wherein, the simulation tubular column includes: the simulation pipe column is provided with a starting end and a free end opposite to the starting end in the lengthwise extension direction, the starting end is close to the wellhead of the simulation shaft, the starting end is provided with a first pressure sensor, the free end is provided with a second pressure sensor, and a well wall of the simulation shaft is provided with a displacement detector;

applying a load to the starting end, receiving first data measured by the first pressure sensor and second data measured by the second pressure sensor;

when the difference value of the first data and the second data is larger than a preset value, the pressure supply mechanism is opened, the driving piece is driven to reciprocate between the first end face and the second end face of the working chamber and impact the impact part, and vibration is generated;

and in the vibration process, acquiring displacement data measured by the displacement detector.

Has the advantages that:

the vibrator and the method for acquiring the vibration data can be used for simulating the vibration of the tubular column and simulating and evaluating the vibration of the tubular column, so that reasonable vibration parameters are acquired, and important theoretical basis is provided for safe and efficient drilling operation of horizontal wells and extended reach wells. Furthermore, the vibrator can generate axial vibration to the pipe column in a pneumatic mode through the power assembly, complex parts are not needed, the manufacturing cost is low, and the service life is long.

Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive labor.

Fig. 1 is a schematic structural diagram of a vibrator provided in an embodiment of the present application;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic structural diagram of a power assembly provided in an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating a vibration principle of a vibrator according to an embodiment of the present disclosure;

fig. 6 is a schematic flowchart of a method for acquiring vibration data according to an embodiment of the present application.

Description of reference numerals:

1. a vibrating body; 2. a working chamber; 201. a first end face; 202. a second end face; 3. a drive member; 4. an impact section; 5. a power assembly; 6. an intermediate joint; 7. a first screw; 8. a second screw; 9. a seal member; 10. a flange; 11. a support; 12. pressing a plate; 13. a pneumatic connector; 14. a valve; 151. a first flow passage; 152. a second flow passage; 16. a muffler; 17. a gas amount control valve; 18. an air pump; 19. an elastic member; 20. a first flow directing chamber; 21. a second flow directing chamber.

Detailed Description

While the invention will be described in detail with reference to the drawings and specific embodiments, it is to be understood that these embodiments are merely illustrative of and not restrictive on the broad invention, and that various equivalent modifications can be effected therein by those skilled in the art upon reading the disclosure.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The vibrator and the method for acquiring vibration data according to the embodiment of the present invention will be explained and explained with reference to fig. 1 to 6. It should be noted that, for convenience of description, like reference numerals denote like parts in the embodiments of the present invention. And for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments, and the descriptions of the same components may be mutually referred to and cited.

The definitions of the directions in the present specification are only for convenience of explaining the technical solution of the present invention, and do not limit the directions of the vibrator according to the embodiments of the present invention in other scenarios that may cause the orientation of the device to be reversed or the position of the device to be changed, including but not limited to use, testing, transportation, and manufacturing.

In the working process of drilling a horizontal well and a large-displacement well, the rotation and the guidance of the drilling process can be realized by adopting a rotary drilling mode, and meanwhile, the friction force between a drill column and a well wall and the friction resistance on the drill column can be reduced due to the continuous rotation of the pipe column in a shaft. However, the rotary steering system has the characteristics of high service cost, low build rate, inapplicability to harsh environments and the like, and the application range of the rotary steering system is limited. The composite drilling mode is mainly used for steady-slope drilling, and if a drilling track deflects and needs to be corrected or manually oriented, a sliding drilling mode is required. The sliding drilling working condition is compared with the rotary drilling working condition, and the generated friction resistance value is higher due to the fact that the drill column is not rotated, so that the drilling efficiency is low, and the operation risk is large. Especially, as the angle of inclination and the length of the borehole increase, the disadvantages of the sliding drilling conditions become more and more obvious. Therefore, how to greatly reduce the friction resistance under the sliding drilling working condition is a key problem for ensuring safe and efficient drilling.

The vibrator that this application provided can reduce the coefficient of friction drag of drilling string and the wall of a well in the slip drilling operating mode, greatly improves the drilling depth and the well drilling efficiency of drilling string. By reasonably setting the number and the installation positions of the vibrators, important technical support is provided for safe and efficient drilling operation of horizontal wells and extended reach wells.

Referring to fig. 1 to 5 in combination, the vibrator may include: a vibration body 1 having a first flow-guiding chamber 20 and a second flow-guiding chamber 21, the vibration body 1 further having a working chamber 2 disposed between the first flow-guiding chamber 20 and the second flow-guiding chamber 21; the working chamber 2 is respectively communicated with the first diversion chamber 20 and the second diversion chamber 21; a first end face 201 close to the first diversion cavity 20 and a second end face 202 close to the second diversion cavity 21 are arranged in the working cavity 2, and impact parts 4 are respectively formed on the first end face 201 and the second end face 202; a driving member 3 is arranged in the working chamber 2; a power assembly 5 connected to the vibrating body 1; the power assembly 5 can drive the fluid in the first diversion chamber 20 and the second diversion chamber 21 to flow so as to drive the driving member 3 to impact the impact portion 4 of the first end surface 201 or impact the impact portion 4 of the second end surface 202.

In this specification, the power assembly 5 may drive the driving member 3 in the working chamber 2 to reciprocate between the first end surface 201 and the second end surface 202 by supplying the fluid medium to the first diversion chamber 20 and the second diversion chamber 21, and impact the impact portion 4 of the end surfaces to generate vibration. It is noted that in this embodiment, fluid is supplied to one of the first and second guide chambers 20, 21, while the other of the first and second guide chambers 20, 21 displaces fluid so that the driver 3 is movable within the working chamber 2.

The power assembly 5 can also be reciprocated between the first end surface 201 and the second end surface 202 by the pressure difference between the two sides of the driving member 3 by pumping the fluid medium into the first guide chamber 20 and the second guide chamber 21. In an embodiment, fluid is drawn from one of the first and second guide chambers 20, 21, while the other of the first and second guide chambers 20, 21 provides fluid, such that fluid medium is always present in the working chamber 2 to push the driver 3 to move. This is not a limitation of the present application.

In this specification, the vibrator may generate vibrations pneumatically. The driving member 3 can be driven to move between the first end surface 201 and the second end surface 202 of the working chamber 2 by introducing gas into or extracting gas from the working chamber 2 through the power assembly 5, and impact the impact portions 4 on the two end surfaces and generate vibration with a predetermined frequency. By adopting a pneumatic driving mode, compared with a hydraulic driving mode for establishing drilling fluid circulation, the method can avoid the damage of the drilling fluid circulation to a reservoir and environmental pollution, saves the processing cost of the drilling fluid, and is more suitable for air drilling working conditions.

Specifically, as shown in fig. 5 as an example of the direction, the vibrator 1 may have a body extending longitudinally, and the vibrator 1 is provided in the first direction with: a first flow-directing chamber 20, a working chamber 2 and a second flow-directing chamber 21. Wherein the working chamber 2 is provided with a driver 3 movable in a second direction between a first end face 201 and a second end face 202. The first direction is the same as the second direction or an acute angle is formed between the first direction and the second direction.

In a preferred embodiment, the vibration body 1 defines a first axis in a first direction and the working chamber 2 defines a second axis in a second direction between the first 201 and second 202 end faces, said first axis coinciding with said second axis. Therefore, the vibration direction generated in the working chamber 2 is ensured to be consistent with the extending direction of the vibrating body 1, and the stability of the generated axial vibration is facilitated.

The specific structural form of the vibration body 1 is not particularly limited, and the vibration body 1 as a whole may have a cylindrical structure, so that the frictional resistance in the wellbore can be reduced. The first diversion chamber 20 and the second diversion chamber 21 are communicated with the working chamber 2, and the first diversion chamber 20, the working chamber 2 and the second diversion chamber 21 are communicated to form a complete sealed chamber which can accumulate fluid medium after the fluid medium is introduced, so that the driving member 3 is pushed to impact the impact part 4 on the working chamber 2.

Both the first 201 and the second 202 end surface of the working chamber 2 are provided with openings communicating with the flow directing chamber for fluid to flow into the working chamber 2. The drive member 3 arranged in the working chamber 2 is in particular a piston. As shown in fig. 5, in the initial state (the power assembly 5 is not operated), the piston may be located in the middle of the working chamber 2, i.e. the sub-chambers on both sides of the piston have the same volume. In order to ensure tightness, a seal 9 is arranged between the drive element 3 and the working chamber 2, which seal 9 may be a sealing ring. The striking part 4 may be a metal block, and the driving member 3 may vibrate by striking the metal block, which may be a metal material having a certain density. The striking portions 4 are fixed to both end surfaces of the working chamber 2, respectively, and the number and specific structure of the striking portions 4 are not particularly limited in this application. In a particular embodiment, the impact portion 4 is a square iron block, which is provided on the first end face 201 and the second end face 202 of the working chamber 2, and which may be provided with through holes for the passage of a fluid medium.

Referring to fig. 1, in one embodiment, a vibration body 1 may include: the cylinder body is arranged between the first mounting base body and the second mounting base body; the mounting base body is provided with a flow guide cavity and a bypass hole communicated with the flow guide cavity, the bypass hole is used for circulating fluid media, the mounting base body is provided with an open end and a closed end opposite to the open end, the cylinder body is connected with the mounting base body through the open end, and the closed end of the mounting base body is fixedly connected with an intermediate joint 6.

In the present embodiment, the vibrating body 1 is formed by the mounting base and the cylinder together, and both the mounting base and the cylinder may be of a cylindrical structure. The installation base member is provided with the water conservancy diversion cavity, and the installation base member has relative open end and blind end, and the open end is used for being connected with the cylinder body cooperation, and the blind end is used for connecting intermediate head 6. Specifically, both the cylinder body and the mounting base body may be provided with a connection hole, and the cylinder body may be fixed to the mounting base body by a first screw 7. Both ends of the cylinder body are provided with openings so as to be communicated with the mounting base body. The mounting base body is further provided with a bypass hole, the bypass hole is communicated with the flow guide chamber, and the bypass hole is used for being connected with the power assembly 5 and guiding the fluid medium into the vibrating body 1 or guiding the fluid medium out of the vibrating body 1.

In the present embodiment, as shown in fig. 1 and 2, the intermediate joint 6 can be connected to the mounting base by a flange 10 and a second screw 8. Specifically, the closed end of the mounting base body may be provided with an external thread, the flange 10 may be provided with an internal thread matched with the external thread, connection with the flange 10 is achieved, and then the flange 10 and the intermediate joint 6 are connected through the second screw 8. The above description of the connection relationship is merely for example, and the present application is not particularly limited as long as the intermediate joint 6 can be connected to the vibrator 1. The test piece is specifically a test drill string and can be used for simulating axial vibration of the drill string by a vibrator in the actual drilling process. The intermediate sub 6 may be provided with a connection hole inside thereof to be connected with a test drill string.

In the present specification, as shown in fig. 4, the power module 5 includes: a pressure supply mechanism for supplying a fluid; a first flow passage 151 provided between the pressure supply mechanism and the first guide chamber 20; a second flow passage 152 provided between the pressure supply mechanism and the second guide chamber 21; a valve 14 provided on the flow passage or between the flow passage and the pressure supply mechanism; and the controller is electrically connected with the valve 14, and controls the valve 14 to be alternately communicated with the first flow passage 151 and the second flow passage 152 so that the pressure supply mechanism alternately supplies fluid to the first flow passage 151 and the second flow passage 152.

In this embodiment, the valves 14 may be respectively disposed on the first and second flow passages 151 and 152, and then the valves 14 are adjusted to be opened and closed by the controller, thereby controlling the first and second flow passages 151 and 152 to supply the fluid separately. The valve 14 may also be disposed between the flow channel and the pressure supply mechanism, and the valve 14 is specifically a two-position four-way solenoid valve, and includes a valve body and a switch mechanism disposed in the valve body. The valve body is provided with: the pressure-supply device comprises a first interface, a second interface, a third interface and a fourth interface, wherein the first interface is connected with a pressure-supply mechanism, the second interface is connected with a first flow channel 151, the third interface is connected with a second flow channel 152, and the fourth interface is communicated with the outside. The controller controls a switch mechanism in the valve body to alternately communicate the first port with the second port and the third port, and when the first port communicates with one of the second port and the third port, the other of the second port and the third port communicates with the fourth port.

Further, the fourth interface can be connected with a silencer 16, and the silencer 16 can reduce the noise of the two-position four-way electromagnetic valve. Wherein, two specific principles and the structure of four-way solenoid valve are prior art, and this application is no longer described in detail.

The fluid may in particular be a gas, preferably an inert gas. Damage to the reservoir and environmental pollution can be avoided compared to hydraulically driven means by establishing drilling fluid circulation. And the pneumatic driving is adopted, and complex parts are not needed. In addition, the gas can avoid the corrosion problem of the vibrator, prolong the service life of the vibrator and save the manufacturing cost.

Specifically, as shown in fig. 3 and 4, the two-position four-way solenoid valve and the diversion chamber may be both communicated through a pressure hose. The end part of the pressure hose can be provided with a pneumatic connecting piece 13, so that the pressure hose is ensured to be communicated with a bypass hole on the installation base body, an air source can be ensured to be input into the working chamber 2 from the pressure hose, and the pneumatic connecting piece 13 and the bypass hole can be in threaded connection or welded. In addition, when one of the first diversion chamber 20 and the second diversion chamber 21 is used for air intake, the other one is used for air exhaust under the driving of the driving part 3, so that the driving part 3 can do reciprocating motion in the working chamber 2 after the working chamber 2 is filled with air.

The pressure supply mechanism may include: a gas pump 18 for supplying gas; and a main flow passage arranged between the air pump 18 and the first interface, wherein an air quantity control valve 17 for adjusting air quantity parameters is arranged on the main flow passage. Wherein, the gas quantity parameter can be any one or the combination of the following: the flow, pressure, flow rate may also be parameters of other reaction gas quantities, and the application is not limited specifically. In the present embodiment, the gas flow rate value is adjusted by the gas amount control valve 17, and a predetermined amount of gas source can be supplied to the first flow channel 151 and the second flow channel 152 through the gas amount control valve 17.

In this specification, the controller may be electrically connected to both the air volume control valve 17 and the two-position four-way solenoid valve, and is configured to adjust the main flow passage to be alternately communicated with the first port through the second port and the third port of the two-position four-way solenoid valve. So that the gas can be alternately supplied to the first guide chamber 20 and the second guide chamber 21 and vibration of a predetermined frequency is generated.

The controller is used for receiving signals and sending commands, and the controller can be a computer, so that the work of the two-position four-way electromagnetic valve and the air quantity control valve 17 can be adjusted. The controller can control the state of the gas amount control valve 17 so that the gas amount is maintained at a set value. The controller can adjust the switching frequency of the valve of the two-position four-way electromagnetic valve according to the set time, so that the second interface and the third interface are sequentially communicated with the first interface, and the vibration frequency of the driving piece 3 in the working chamber 2 is controlled. The predetermined frequency at which the vibrator 1 vibrates is specifically determined according to the switching frequency of the two-position four-way solenoid valve and the gas quantity parameter, and the application is not limited. The electrical connection mode may be a wired connection, and certainly, the electrical connection mode may also be a wireless connection, for example, technologies such as WIFI, infrared, and bluetooth in the prior art are utilized, or other wireless communication technologies may also be utilized, and the present application is not limited specifically herein. The Controller may take the form of, for example, a microprocessor or processor and a computer-readable medium that stores computer-readable program code (e.g., software or firmware) executable by the microprocessor or processor, Logic gates, switches, an Application Specific Integrated Circuit (ASIC), a Programmable Logic Controller (PLC), and an embedded Microcontroller (MCU).

In this specification, as shown in fig. 2, the vibrator further includes a supporting assembly including: a support 11, the support 11 having a first surface for supporting the vibration body 1 and a second surface opposite to the first surface, the second surface being provided with at least one elastic member 19; and a connecting mechanism for fixing the bracket 11 and the vibrating body 1. The elastic element 19 may be a spring, which may be directly disposed on the second surface of the bracket 11. Of course, it is also possible to provide the second surface of the support 11 with guide rods on which the springs are sleeved. The elastic member 19 has opposite ends in a length direction thereof, and one end of the elastic member 19 is fixed and the other end can vibrate with a predetermined frequency of the vibration body 1 during vibration of the vibrator, thereby supporting and damping the vibration body 1.

Specifically, as shown in fig. 2 and 3, the connection mechanism may include: and the pressing plate 12 is provided with a pressing section and fixing sections positioned at two sides of the pressing section, the pressing section is provided with an arc-shaped structure matched with the cylindrical structure of the vibrating body 1, and the fixing sections are fixed with the first surface of the support 11 through locking units. In this embodiment, the two ends of the pressing plate 12 may be provided with coupling holes, and the pressing plate 12 is fixed to the bracket 11 by a locking unit, which may include a screw or a screw and a nut coupled thereto.

An embodiment of the present application further provides a method for acquiring vibration data using the vibrator, as shown in fig. 1 to 6, where the method for acquiring vibration data includes:

s10: the simulation pipe column is lowered into the simulation shaft; wherein, the simulation tubular column includes: the simulation pipe column is provided with a starting end and a free end opposite to the starting end in the lengthwise extension direction, the starting end is close to a well mouth of the simulation shaft, the starting end is provided with a first pressure sensor, the free end is provided with a second pressure sensor, and a displacement detector is arranged on the well wall of the simulation shaft;

s20: applying a load to the starting end, and receiving first data measured by the first pressure sensor and second data measured by the second pressure sensor;

s30: when the difference value between the first data and the second data is larger than a preset value, the pressure supply mechanism is opened, the driving piece 3 is driven to reciprocate between the first end face 201 and the second end face 202 of the working chamber 2 and impact the impact part 4, and vibration is generated;

s40: and in the vibration process, acquiring displacement data measured by the displacement detector.

Specifically, in step S10, the simulated wellbore may be a horizontal well or an extended reach well. Of course, the vibrator and the vibration data acquisition method provided by the specification are not only suitable for simulating the drilling process of a horizontal well and an extended reach well. In the embodiments that can be envisioned, those skilled in the art can extend the technical method of the embodiments provided in the present application to any suitable scenario, that is, the simulated wellbore can be of other well types, and the embodiments of the present application are not limited thereto. The method for acquiring the vibration data is mainly explained by taking a horizontal well and an extended reach well as a main scene, but based on the above description, the scope of protection of the embodiment of the present application is not limited thereby.

In step S10, the first pressure sensor, the second pressure sensor and the displacement detector, which may be a displacement sensor, may record data change values through a computer. In the simulation process, the first pressure sensor records the pressure value of the starting end of the simulation pipe column, the second pressure sensor records the pressure value of the free end of the simulation pipe column, the starting end is close to the well mouth of the shaft, and the free end is close to the drill bit. In step S20, when a load is applied to the start end and it is determined whether the simulation string generates high friction resistance based on the difference between the received first data measured by the first pressure sensor and the received second data measured by the second pressure sensor, when the difference between the first data and the second data is greater than the preset value, the air pump 18 may be turned on at this time so that the vibrator generates axial vibration to the simulation string. The specific value of the preset value is not particularly limited, and can be adjusted according to experimental needs.

After the air pump 18, the air volume control valve 17 and the two-position four-way solenoid valve are opened, the controller can adjust the switching frequency of the valve of the two-position four-way solenoid valve according to the set time, so as to control the vibration frequency of the driving member 3 in the working chamber 2. In the process that the vibrator drives the simulation pipe column to vibrate, the vibration stroke in the vibration process of the simulation pipe column is obtained by obtaining displacement data measured by the displacement detector, so that the vibration process is evaluated.

The vibrator and the vibration data acquisition method can be used for simulating axial vibration of the tubular column and simulating and evaluating the axial vibration of the tubular column, so that reasonable vibration parameters are acquired, and important theoretical basis is provided for safe and efficient drilling operation of horizontal wells and extended reach wells. The vibrator generates axial vibration to the pipe column in a pneumatic mode, does not need to adopt complex parts, is low in manufacturing cost and has a long service life. By adopting a pneumatic driving mode, compared with a hydraulic driving mode for establishing drilling fluid circulation, the method can avoid the damage of the drilling fluid circulation to a reservoir and environmental pollution, saves the processing cost of the drilling fluid, and is more suitable for air drilling working conditions.

The above embodiments are merely illustrative of the technical concepts and features of the present application, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made according to the spirit of the present application should be covered in the protection scope of the present application.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes.