阅读说明：本技术 一种复合式钻井方法 (Combined type well drilling method ) 是由 宋宏兵 王树钢 康亢 于 2019-10-11 设计创作，主要内容包括：本发明公开一种复合式钻井方法,属于石油天然气技术领域,包括钻井支架、钻井组件,其特征在于：钻井组件包括输送筒、钻孔器,输送筒呈圆筒状,且输送筒内部设有输送螺杆,输送螺杆的外圈与输送筒的内壁设有10cm-15cm间隙,输送螺杆中部插接有转动轴,转动轴的上端穿过输送筒连接驱动液缸的输出端,转动轴的下端连接通过连接轴连接钻孔器,连接轴与输送筒底部接触部位套设有轴承。本发明采用机械自动化控制,极大的降低了钻井时所产生的噪音、减少了灰尘产生的同时也减少了井下起钻次数,提高了钻孔效率。(The invention discloses a combined type well drilling method, which belongs to the technical field of petroleum and natural gas, and comprises a well drilling support and a well drilling assembly, and is characterized in that: the drilling assembly comprises a conveying cylinder and a drilling device, the conveying cylinder is cylindrical, a conveying screw rod is arranged in the conveying cylinder, a gap of 10cm-15cm is formed between the outer ring of the conveying screw rod and the inner wall of the conveying cylinder, a rotating shaft is inserted in the middle of the conveying screw rod, the upper end of the rotating shaft penetrates through the conveying cylinder to be connected with the output end of a driving hydraulic cylinder, the lower end of the rotating shaft is connected with the drilling device through a connecting shaft, and a bearing is sleeved at the contact position of the connecting shaft and the bottom. The invention adopts mechanical automatic control, greatly reduces the noise generated during drilling, reduces the dust generation, reduces the underground drill tripping times and improves the drilling efficiency.)

1. A combined type drilling device comprises a drilling support (1) and a drilling assembly (6), and is characterized in that: well drilling subassembly (6) are cylindric including carrying a section of thick bamboo (7), perforator (19), carry a section of thick bamboo (7) to be, and carry a section of thick bamboo (7) inside conveying screw (10) of being equipped with, the outer lane of conveying screw (10) is equipped with 10cm-15cm clearance with the inner wall of carrying a section of thick bamboo (7), it has axis of rotation (11) to peg graft in the middle part of conveying screw (10), the output of carrying a section of thick bamboo (7) connection drive hydraulic cylinder (3) is passed to the upper end of axis of rotation (11), the lower extreme of axis of rotation (11) is connected perforator (19) through connecting axle (14), connecting axle (14) and carrying a section of thick bamboo (7) bottom contact position cover are equipped with bearing (12.

2. The composite drilling assembly of claim 1, wherein: slide (9) of symmetry have been seted up in the transport cylinder (7) outside, slide (9) are sunken to transport cylinder (7) inboard, slide (9) and slider (5) sliding fit, and slider (5) are located the ground top, escape opening (8) have been seted up to transport cylinder (7) top both sides, dirty mouthful (13) of collection have been seted up to transport cylinder (7) bottom surface.

3. The composite drilling assembly of claim 1, wherein: the well drilling support (1) is located above the ground, the middle of the top surface of the well drilling support (1) is connected with a hydraulic telescopic rod (2), the tail end of the hydraulic telescopic rod (2) is fixedly connected with a driving hydraulic cylinder (3), and the middle of the lower portion of the driving hydraulic cylinder (3) is connected with a well drilling assembly (6).

4. The composite drilling assembly of claim 2, wherein: the slider (2) is fixed inside the fixing seat (4), the fixing seat (4) is connected with the ground through a bolt, and the fixing seat (4) is in a circular truncated cone shape.

5. The composite drilling assembly of claim 1, wherein: the inside top surface of perforator (19) is equipped with drive power supply (15), drive power supply (15) pass through the wire and connect piezoelectric actuator (17), install in the mounting panel lower surface through the screw at piezoelectric actuator (17) top, amplitude modulator (18) are connected to piezoelectric actuator (17) middle part below, free piece (20) are connected to the output of amplitude modulator (18), be equipped with vibrations dish (21) under free piece (20), there is resonance region (16) between vibrations dish (21) and the free piece, vibrations dish (21) bottom surface links firmly with drill bit (22) top surface.

6. The composite drilling assembly of claim 1, wherein: arc plates (24) are annularly distributed on the outer surface of the perforator (19), at least three rows of arc plates (24) are arranged along the axial direction of the perforator (19), the arc plates (24) are arranged at equal intervals, each arc plate (24) is provided with a cone angle at the center of 3 end faces, the cone angle is perpendicular to the end face of each arc plate (24), the bottom face of each arc plate (24) is rectangular, the bottom face of each arc plate (24) and the axis of the perforator (19) form an included angle of 15-18 degrees, the distance from the top end face of each arc plate (24) to the outer surface of the perforator (19) is 6-8 cm, the arc plates (24) are bent inwards, the arc bending angle of each arc plate is 40-50 degrees, a through hole is formed in the middle of each arc plate (24), a fixing ring (25) penetrates through the through hole, and deflector discs (23) are arranged on the upper side and the lower side of each arc plate (24), the flow guide disc (23) is wound on the surface of the drill (19).

7. The composite drilling assembly of claim 1, wherein: the diameter of the drill (19) is smaller than that of the conveying cylinder (7), and a flow guide disc (23) arranged at the top of the drill (19) is matched with a dirt collecting opening (13) in the bottom surface of the conveying cylinder (7).

8. A method of drilling a wellbore having a wellbore section, comprising: the well drilling method comprises the following steps;

the method comprises the following steps: surveying the ground, and arranging the drilling support (1) and the drilling assembly (6) above the ground;

step two: the hydraulic telescopic rod (2) is driven to push the drilling assembly (6) to move towards the inside of the well, and drilling is carried out on the ground;

step three: monitoring the drilling process in real time, and recording related data generated during drilling;

step four: after the drilling is finished, the hydraulic telescopic rod (2) is driven to reset the drilling assembly (6).

Technical Field

The invention belongs to the technical field of petroleum and natural gas, and particularly relates to a combined type drilling method.

Background

Oil extraction refers to the act of digging and extracting usage in places where oil is stored. In the process of oil production, oil flows from a reservoir to the bottom of a well and then rises from the bottom of the well to the top of the well in a driving mode.

The drilling engineering plays a very important role in the development of oil and gas fields, and in the construction of one oil and gas field, the drilling engineering usually accounts for more than 50% of the total investment. The development of an oil and gas field often needs to drill hundreds of wells or even thousands of wells or more; there are different technical requirements for wells (production wells, injection wells, observation wells) for different purposes such as production, observation and control, inspection wells, etc. dedicated to checking the effectiveness of water-washed oil.

Disclosure of Invention

The invention aims to provide a combined type drilling method, which adopts mechanical automatic control, greatly reduces the noise generated during drilling, reduces the generation of dust, simultaneously reduces the underground drill tripping times and improves the drilling efficiency.

The technical scheme adopted by the invention for realizing the purpose is as follows: a combined type drilling device comprises a drilling support and a drilling assembly, and is characterized in that: the drilling assembly comprises a conveying cylinder and a drilling device, the conveying cylinder is cylindrical, a conveying screw rod is arranged in the conveying cylinder, a gap of 10cm-15cm is formed between the outer ring of the conveying screw rod and the inner wall of the conveying cylinder, a rotating shaft is inserted in the middle of the conveying screw rod, the upper end of the rotating shaft penetrates through the conveying cylinder to be connected with the output end of a driving hydraulic cylinder, the lower end of the rotating shaft is connected with the drilling device through a connecting shaft, and a bearing is sleeved at the contact position of the connecting shaft and the bottom. The drilling device can quickly drill a well on the ground needing drilling, the drilling depth is controlled by the hydraulic telescopic rod, the sliding block in the fixed seat is matched with the sliding rail on the side surface of the conveying cylinder to further reinforce the drilling assembly, so that the drilling assembly is not easy to deviate from the original drilling position during drilling, and the flexibility of the drilling assembly during up-and-down stretching is ensured.

Preferably, the outer side of the conveying cylinder is provided with symmetrical slide ways, the slide ways are sunken towards the inner side of the conveying cylinder, the slide ways are in sliding fit with the slide blocks, the slide blocks are located above the ground, the two sides of the top of the conveying cylinder are provided with discharge ports, and the bottom of the conveying cylinder is provided with a dirt collecting port. The slide of carrying a both sides can be followed the slider and slided from top to bottom at drilling in-process, and the slider makes the transport cylinder be in a straight line all the time when the motion with the cooperation of slide, and the skew dislocation of hole site when having avoided drilling, the dirty mouthful of collection of transport cylinder bottom can collect the discharged earth stone of borer, carries to the escape orifice through defeated screw rod, collects and clears up earth stone again.

Preferably, the drilling support is located above the ground, the middle of the top surface of the drilling support is connected with a hydraulic telescopic rod, the tail end of the hydraulic telescopic rod is fixedly connected with a driving hydraulic cylinder, and the middle of the lower portion of the driving hydraulic cylinder is connected with a drilling assembly. The drilling support is used for supporting the whole equipment, the hydraulic telescopic rod in the middle of the drilling support controls the telescopic movement of the drilling assembly and the feeding amount during drilling, the driving hydraulic cylinder also controls the rotating speed of the conveying screw rod and the drill, and the problem of well hole quality caused by too fast or too slow drilling is avoided.

Preferably, the sliding block is fixed inside the fixed seat, the fixed seat is connected with the ground through a bolt, and the fixed seat is in a circular truncated cone shape. The setting of fixing base has further ensured whole drilling equipment stability at the during operation, and inside the fixing base was located to the slider, the slider can be in quiescent condition all the time when the drilling subassembly function.

Preferably, a driving power supply is arranged on the top surface inside the drilling device and connected with the piezoelectric driver through a lead, the top of the piezoelectric driver is mounted on the lower surface of the mounting plate through a screw, an amplitude modulator is connected to the lower portion of the middle of the piezoelectric driver, the output end of the amplitude modulator is connected with the free block, a vibration disc is arranged right below the free block, a resonance area exists between the vibration disc and the free block, and the bottom surface of the vibration disc is fixedly connected with the top surface of the drill bit. The driving power supply in the drill hole provides power for the piezoelectric driver, the piezoelectric driver after being electrified drives the amplitude modulator, so that the amplitude modulator emits high-frequency vibration, the action force of the vibration acts on the free block, the free block vibrates to the vibration disc from bottom to top, the vibration disc converts the force generated by the vibration into high-frequency impact force and transmits the high-frequency impact force to the drill bit, and the part in the well hole, which is in contact with the drill bit, can generate a plurality of cracks, thereby being beneficial to further exploitation of the well hole.

Preferably, the outer surface of the drilling device is annularly provided with arc-shaped plates, at least three rows of arc-shaped plates are arranged along the axial direction of the drilling device, the arc-shaped plates are arranged at equal intervals, the center of 3 end faces of each arc-shaped plate is provided with a cone angle, the set cone angle is perpendicular to the end face of each arc-shaped plate, the bottom surface of each arc-shaped plate is rectangular, the bottom surface of each arc-shaped plate and the axis of the drilling device form an included angle of 15-18 degrees, the distance from the top end face of each arc-shaped plate to the outer surface of the drilling device is 6-8 cm, the arc-shaped plates are bent inwards, the arc-shaped bending angle is 40-50 degrees, the middle parts of each arc-shaped plate are provided with through holes, fixing rings are penetrated in the through holes. The outer surface of the drilling device is annularly provided with an arc-shaped plate, at least 3 rows of arc-shaped plates are vertically arranged, each end face of the arc-shaped plate is also provided with a taper angle, the arrangement aims at that the drilling device can drive the arc-shaped plate on the surface of the drilling device, a flow guide plate and a drill bit at the bottom of the drilling device to rotate when in work, the drill bit can impact stones and earth into blocks, the flow guide plate can upwards convey the stones and the earth which are impacted into blocks, the drill bit can be blocked or the stones can not enter a conveying cylinder when the blocks of stones are conveyed upwards, the taper angle of the end face of the arc-shaped plate can secondarily smash the stones and the earth into small blocks when the arc-shaped plate rotates, so that the stones and the earth can be conveniently conveyed by the flow guide plate, the arc-shaped bending angle of the arc-shaped plate is within the set range, the air flow speed around the arc-shaped plate can correspondingly accelerate and generate air flow along with the acceleration of the rotating speed of the drilling device, the arc-shaped blades are obliquely connected to the surface of the drilling machine, so that upward dust rising during drilling can be effectively blocked, and the drilling site and the surrounding environment are guaranteed.

Preferably, the diameter of the drill is smaller than that of the conveying cylinder, and a flow guide disc arranged at the top of the drill is matched with a dirt collecting opening in the bottom surface of the conveying cylinder. The diameter of the drill is smaller than that of the conveying cylinder, and the guide disc and the dirt collecting opening are matched in the mode that the drill discharges stones and soil into the conveying cylinder more smoothly during working, so that normal working of the device is guaranteed.

A composite drilling method for drilling a well having a well section, the drilling method comprising the steps of;

the method comprises the following steps: surveying the ground, and arranging the drilling support and the drilling assembly above the ground;

step two: driving a hydraulic telescopic rod to push the drilling assembly to move towards the inside of the well, and drilling the well on the ground;

step three: monitoring the drilling process in real time, and recording related data generated during drilling;

step four: after drilling is finished, the hydraulic telescopic rod is driven to reset the drilling assembly.

Compared with the prior art, the invention has the beneficial effects that: the drilling speed of the drilling assembly is controlled through the hydraulic telescopic rod, the drilling assembly slides along the sliding block, the drilling track cannot deviate, stone soil generated during drilling can be further broken by a drilling device and then is conveyed to the outside of a drilling area from the conveying cylinder, the number of times of lifting up the drilling assembly is greatly reduced, the drilling efficiency is improved, dust is prevented from rising upwards due to the fact that the arc-shaped plate on the surface of the drilling device is specially provided with effective noise, and the drilling site and the surrounding environment are guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a well bore of the present invention;

FIG. 2 is a schematic structural view of the drilling assembly of the present invention;

FIG. 3 is a schematic structural view of the reamer of the present invention;

FIG. 4 is a schematic view of the internal structure of the reamer of the present invention;

FIG. 5 is a graph of comparative experimental data according to the present invention.

Description of reference numerals: 1, drilling a well bracket; 2, hydraulic telescopic rods; 3 driving the hydraulic cylinder; 4, fixing a base; 5, a sliding block; 6, drilling the well assembly; 7 a delivery cylinder; 8 a drain opening; 9, a slideway; 10 conveying screw; 11 rotating the shaft; 12 bearing; 13 a sewage collecting port; 14 connecting the shafts; 15 a drive power supply; 16 a resonance region; 17 a piezoelectric driver; an 18 amplitude modulator; 19 a drill; 20 free blocks; 21 vibrating a disc; 22 a drill bit; 23 a flow guiding disc; 24 arc-shaped plates; and 25, fixing the ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.