阅读说明：本技术 连续管作业用伸缩井架及其使用方法 (Telescopic derrick for coiled tubing operation and use method thereof ) 是由 郭祥伟 安绍敏 孙晓明 王炜 梁海云 殷长江 孙建磊 刘燕 孙仁俊 郑伟 于 2021-09-01 设计创作，主要内容包括：一种连续管作业用伸缩井架及其使用方法,包括伸缩井架和注入头调节安装平台,注入头调节安装平台与伸缩井架滑动配合,伸缩井架设置在运输装置上,运输装置上设有举升推动装置,举升推动装置一端与运输装置铰接,举升推动装置用于驱动伸缩井架转动；伸缩井架包括井架下段和井架上段,井架下段和井架上段之间滑动配合,且井架上段通过伸缩驱动装置驱动移动。本发明将伸缩井架与运输设备集成于一体进行运输,降低整机运输成本；本连续管作业用伸缩井架作业时为直立状态,注入头前后调节距离不受作业高度影响,增强作业适应性。(A telescopic derrick for continuous pipe operation and a using method thereof comprise a telescopic derrick and an injection head adjusting and mounting platform, wherein the injection head adjusting and mounting platform is in sliding fit with the telescopic derrick; the telescopic derrick comprises a derrick lower section and a derrick upper section, the derrick lower section is in sliding fit with the derrick upper section, and the derrick upper section is driven to move by a telescopic driving device. The telescopic derrick and the transportation equipment are integrated into a whole for transportation, so that the transportation cost of the whole machine is reduced; the telescopic derrick for continuous pipe operation is in an upright state during operation, the front-back adjustment distance of the injection head is not influenced by the operation height, and the operation adaptability is enhanced.)

1. The utility model provides a coiled tubing operation is with flexible derrick, includes flexible derrick and injection head and adjusts mounting platform, its characterized in that: the injection head adjusting and mounting platform is in sliding fit with the telescopic derrick, the telescopic derrick is arranged on the transportation device, the transportation device is provided with a lifting and pushing device, one end of the lifting and pushing device is hinged with the transportation device, and the lifting and pushing device is used for driving the telescopic derrick to rotate; the telescopic derrick comprises a derrick lower section (5) and a derrick upper section (6), the derrick lower section (5) and the derrick upper section (6) are in sliding fit, and the derrick upper section (6) is driven to move through a telescopic driving device.

2. The telescopic derrick for continuous pipe work according to claim 1, wherein: the telescopic driving device is a telescopic oil cylinder (4), and the telescopic oil cylinder (4) is arranged in the lower section (5) of the derrick; the bottom of the lower section (5) of the derrick is rotationally connected with the derrick fixing section (3), and the derrick fixing section (3) is arranged on the transportation device.

3. The telescopic derrick for continuous pipe work according to claim 2, wherein: the lifting pushing device is a lifting oil cylinder (2), the movable end of the lifting oil cylinder (2) is hinged with the lower section (5) of the derrick, and the other end of the lifting oil cylinder (2) is hinged with the conveying device; when the lifting oil cylinder (2) lifts the lower section (5) of the derrick to a vertical state, the lifting oil cylinder is fixed with the derrick fixing section (3) by a fixing pin shaft (25).

4. The telescopic derrick for continuous pipe work according to claim 1, wherein: the injection head adjusting and mounting platform comprises a bidirectional track frame (16), the bidirectional track frame (16) is in sliding fit with the telescopic derrick, and the bidirectional track frame (16) is used for sliding vertically along the telescopic derrick; the bidirectional track frame (16) is in sliding fit with the sliding base (22), and the sliding base (22) is used for sliding transversely along the bidirectional track frame (16).

5. The telescopic derrick for continuous pipe work according to claim 4, wherein: the sliding base (22) is driven to move by a translation device, the translation device comprises a hydraulic motor (18), the hydraulic motor (18) drives an adjusting lead screw (17) to rotate through a chain wheel and chain mechanism (19), and the adjusting lead screw (17) is in threaded fit with the bidirectional track frame (16).

6. The telescopic derrick for continuous pipe work according to claim 4, wherein: the sliding base (22) is rotatably connected with the overturning base (14), the overturning base (14) is driven by an overturning lifting oil cylinder (20) to carry out angle adjustment, the movable end of the overturning lifting oil cylinder (20) is hinged with the overturning base (14), and the other end of the overturning lifting oil cylinder (20) is hinged with the sliding base (22); the overturning base (14) is in sliding fit with the sliding support (13), and the sliding support (13) is driven by the telescopic oil cylinder (23) to move laterally.

7. The telescopic derrick for continuous pipe work according to claim 6, wherein: the top of the sliding support (13) is provided with an injection head mounting platform (12), and the sliding support (13) is connected with the injection head mounting platform (12) through a rotary support bearing (11); the injection head mounting platform (12) is fixed with the sliding support (13) through a limiting pin (24); the bottom of the overturning base (14) is provided with a pipe penetrating winch (15), and the pipe penetrating winch (15) is used for drawing the oil pipe to the injection head through a pulley.

8. The telescopic derrick for continuous pipe work according to claim 4, wherein: the injection head adjusting and mounting platform further comprises a hydraulic winch (1), and the hydraulic winch (1) is arranged on the transporting device; a steel wire rope of the hydraulic winch (1) sequentially penetrates through the fixed pulley (7) and the traveling pulley (10) and then penetrates through a dead rope device; the fixed pulley (7) is arranged on the top of the derrick upper section (6), and the traveling pulley (10) is arranged on the sliding base (22).

9. The telescopic mast for continuous pipe working according to claim 1, 2, 3 or 4, wherein: the top of the lower section (5) of the derrick is provided with a mechanical locking device (8), and the mechanical locking device (8) is used for locking the position of the upper section (6) of the derrick; the mechanical locking device (8) comprises an oil cylinder (81) for locking, the oil cylinder (81) for locking is hinged to a locking block (82), the middle of the locking block (82) is rotatably connected with the lower section (5) of the derrick, the front end of the locking block (82) is a limit stop (83), and the limit stop (83) is used for limiting the upper section (6) of the derrick to fall.

10. The method of using a telescopic derrick for continuous pipe work according to any one of claims 1 to 9, comprising the steps of:

s1: after the flexible derrick for continuous pipe operation and the using method thereof are transported to the site, the lower derrick section (5) and the upper derrick section (6) are integrally lifted to a vertical state by using the lifting oil cylinder (2), and the lower derrick section (5) and the derrick fixing section (3) are fixed by installing a fixing pin shaft (25);

s2: the upper section (6) of the derrick is lifted to the using height by using a telescopic oil cylinder (4);

s3: after the upper derrick section (6) is continuously pushed upwards for a distance by using the telescopic oil cylinder (4), the mechanical locking device (8) is started, and then the upper derrick section (6) is lowered to enable the upper derrick section (6) to be in contact with the limit stop block (83);

s4: the overturning base (14) is overturned to a working position by using an overturning and lifting oil cylinder (20);

s5: the height of the injection head adjusting and mounting platform is adjusted by a hydraulic winch (1);

s6: the horizontal position of the sliding base (22) is adjusted by using a translation device;

s7: fixing the injection head mounting platform (12) and the sliding support (13) by using a limiting pin (24);

s8: and the sliding support (13) is subjected to fine adjustment of the horizontal position by using a telescopic oil cylinder (23).

Technical Field

The invention belongs to the field of coiled tubing operation equipment of oil and gas fields, and particularly relates to a telescopic derrick for coiled tubing operation and a using method thereof.

Background

At present, the continuous oil pipe equipment needs a crane to be matched with a suspension injection head for a long time during operation, and the whole operation cost is driven to be high by the lease or purchase cost of the crane. The phenomena of pressure relief of a suspension arm, transverse swing of an injection head and the like exist when the crane lifts for a long time, and instability caused by the phenomena brings well control safety risks to a wellhead device. The scheme for solving the problem at present is that a wellhead tower type supporting frame and a traditional portal derrick replace a crane to support and stabilize an injection head at high altitude. The wellhead tower type support frame is formed by assembling a plurality of layers of supports, and the workload and the strength of field assembly and disassembly are large. The support frame needs to be detached and then transported independently, and the transportation cost is high. In addition, the conventional portal derrick is mostly used in regions with good foreign road conditions due to large overall dimension, and the front-back adjustment of the injection head of the conventional portal derrick depends on the inclination angle of the derrick for compensation, so that the low-position remote operation of the injection head is inconvenient.

Disclosure of Invention

In view of the technical problems in the background art, the telescopic derrick for continuous pipe operation and the use method thereof provided by the invention integrate the telescopic derrick and transportation equipment into a whole for transportation, thereby reducing the transportation cost of the whole machine; the telescopic derrick for continuous pipe operation is in an upright state during operation, the front-back adjustment distance of the injection head is not influenced by the operation height, and the operation adaptability is enhanced.

In order to solve the technical problems, the invention adopts the following technical scheme to realize:

a telescopic derrick for continuous pipe operation comprises a telescopic derrick and an injection head adjusting and mounting platform, wherein the injection head adjusting and mounting platform is in sliding fit with the telescopic derrick, the telescopic derrick is arranged on a transportation device, a lifting pushing device is arranged on the transportation device, one end of the lifting pushing device is hinged with the transportation device, and the lifting pushing device is used for driving the telescopic derrick to rotate; the telescopic derrick comprises a derrick lower section and a derrick upper section, the derrick lower section is in sliding fit with the derrick upper section, and the derrick upper section is driven to move by a telescopic driving device.

In the preferred scheme, the telescopic driving device is a telescopic oil cylinder which is arranged in the lower section of the derrick; the bottom of the lower section of the derrick is rotationally connected with the derrick fixing section, and the derrick fixing section is arranged on the transportation device.

In the preferred scheme, the lifting pushing device is a lifting oil cylinder, the movable end of the lifting oil cylinder is hinged with the lower section of the derrick, and the other end of the lifting oil cylinder is hinged with the conveying device; and when the lifting oil cylinder lifts the lower section of the derrick to a vertical state, the lifting oil cylinder is fixed with the derrick fixing section by a fixing pin shaft.

In a preferred scheme, the injection head adjusting and mounting platform comprises a bidirectional track frame, the bidirectional track frame is in sliding fit with the telescopic derrick, and the bidirectional track frame is used for vertically sliding along the telescopic derrick; the bidirectional track frame is in sliding fit with the sliding base, and the sliding base is used for sliding transversely along the bidirectional track frame.

In the preferred scheme, the sliding base is driven to move by a translation device, the translation device comprises a hydraulic motor, the hydraulic motor drives an adjusting lead screw to rotate through a chain wheel and chain mechanism, and the adjusting lead screw is in threaded fit with the bidirectional track frame.

In the preferred scheme, the sliding base is rotationally connected with the turnover base, the turnover base is driven by a turnover lifting oil cylinder to carry out angle adjustment, the movable end of the turnover lifting oil cylinder is hinged with the turnover base, and the other end of the turnover lifting oil cylinder is hinged with the sliding base; the overturning base is in sliding fit with the sliding support, and the sliding support is driven by the telescopic oil cylinder to move laterally.

In the preferred scheme, the injection head mounting platform is arranged at the top of the sliding support, and the sliding support is connected with the injection head mounting platform through a rotary support bearing; the injection head mounting platform is fixed with the sliding support through a limiting pin; and a pipe-penetrating winch is arranged at the bottom of the overturning base and used for drawing the oil pipe to the injection head through a pulley.

In a preferred scheme, the injection head adjusting and mounting platform further comprises a hydraulic winch, and the hydraulic winch is arranged on the transporting device; a steel wire rope of the hydraulic winch sequentially penetrates through the fixed pulley and the movable pulley and then penetrates through a rope stopper; the fixed pulley is arranged at the top of the upper section of the derrick, and the traveling pulley is arranged on the sliding base.

In the preferred scheme, the top of the lower section of the derrick is provided with a mechanical locking device, and the mechanical locking device is used for locking the position of the upper section of the derrick; the mechanical locking device comprises a locking oil cylinder, the locking oil cylinder is hinged to a locking block, the middle of the locking block is rotatably connected with the lower section of the derrick, the front end of the locking block is a limit stop, and the limit stop is used for limiting the upper section of the derrick to fall.

In a preferred scheme, the using method of the telescopic derrick for continuous pipe operation comprises the following steps:

s1: after the coiled tubing operation is transported to the site by using the telescopic derrick, the lower section of the derrick and the upper section of the derrick are integrally lifted to a vertical state by using a lifting oil cylinder, and the lower section of the derrick and the fixed section of the derrick are fixed by installing a fixed pin shaft;

s2: lifting the upper section of the derrick to a use height by using a telescopic oil cylinder;

s3: after the upper section of the derrick is continuously pushed upwards for a certain distance by using the telescopic oil cylinder, the mechanical locking device is started, and then the upper section of the derrick is lowered to enable the upper section of the derrick to be in contact with the limit stop;

s4: overturning the overturning base to a working position by using an overturning and lifting oil cylinder;

s5: the height of the injection head adjusting and mounting platform is adjusted by a hydraulic winch;

s6: the horizontal position of the sliding base is adjusted by using a translation device;

s7: fixing the injection head mounting platform and the sliding support by using a limiting pin;

s8: and the sliding support is subjected to fine adjustment of the horizontal position by using a telescopic oil cylinder.

This patent can reach following beneficial effect:

1. the derrick and the transportation equipment are integrated into a whole for transportation, so that the transportation cost of the whole machine is reduced.

2. The telescopic derrick for continuous pipe operation is in an upright state during operation, the front-back adjustment distance of the injection head is not influenced by the operation height, and the operation adaptability is enhanced.

3. The telescopic derrick for coiled tubing operation can replace a crane, reduce the operating cost of the coiled tubing, and is beneficial to the efficient and low-cost development of domestic deep oil gas.

4. This coiled tubing operation is with flexible derrick can be in an organic whole with coiled tubing equipment integration, and relative pylon has improved well site dismouting efficiency, has practiced thrift the independent cost of transportation of pylon.

5. The telescopic derrick of the telescopic derrick for the coiled tubing operation adopts a telescopic structure, shortens the transportation length by 5.3m on the premise of meeting the operation height, and enhances the trafficability characteristic.

6. This coiled tubing operation is with flexible derrick injection head adjustment platform adopts two-way track sliding structure, and the injection head forward and backward regulation range does not receive high influence, and well head adaptability is strong, the better low-order injection head operation of satisfying.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a view showing the overall structure of the present invention (in an undeployed state);

FIG. 2 is an overall structural view (expanded state) of the present invention;

FIG. 3 is a first view of the mechanical locking device of the present invention;

FIG. 4 is a second structural view of the mechanical locking device of the present invention;

FIG. 5 is a drawing of a wire rope connection according to the present invention;

FIG. 6 is a front view of the injector head adjustment mounting platform of the present invention;

FIG. 7 is a top view of the injector head adjustment mounting platform of the present invention;

FIG. 8 is a first left side view of the injector head adjustment mounting platform of the present invention;

FIG. 9 is a second left side view of the injector head adjustment mounting platform of the present invention;

fig. 10 is a diagram illustrating the turning effect of the injection head according to the present invention.

In the figure: the device comprises a hydraulic winch 1, a lifting oil cylinder 2, a derrick fixed section 3, a telescopic oil cylinder 4, a derrick lower section 5, a derrick upper section 6, a top fixed pulley 7, a mechanical locking device 8, a pulley 9, a traveling pulley 10, a rotary supporting bearing 11, an injection head mounting platform 12, a sliding support 13, a turnover base 14, a pipe-through winch 15, a derrick track 16, an adjusting screw 17, a hydraulic motor 18, a chain wheel and chain mechanism 19, a turnover lifting oil cylinder 20, a connecting beam 21, a sliding base 22, a telescopic oil cylinder 23, a limit pin 24 and a fixed pin shaft 25;

a represents a telescopic derrick; b represents the injector head adjustment mounting platform.

Detailed Description

The preferable scheme is as shown in fig. 1 to 10, the telescopic derrick for the continuous pipe operation comprises a telescopic derrick and an injection head adjusting and mounting platform, wherein the injection head adjusting and mounting platform is in sliding fit with the telescopic derrick, the telescopic derrick is arranged on a transportation device, the transportation device is provided with a lifting and pushing device, one end of the lifting and pushing device is hinged with the transportation device, and the lifting and pushing device is used for driving the telescopic derrick to rotate; the telescopic derrick comprises a derrick lower section 5 and a derrick upper section 6, the derrick lower section 5 is in sliding fit with the derrick upper section 6, and the derrick upper section 6 is driven to move by a telescopic driving device.

Furthermore, the telescopic driving device is a telescopic oil cylinder 4, and the telescopic oil cylinder 4 is arranged in the lower section 5 of the derrick; the bottom of the derrick lower section 5 is rotationally connected with the derrick fixed section 3, and the derrick fixed section 3 is arranged on the transportation device. The telescopic derrick comprises a derrick fixed section 3, a telescopic oil cylinder 4 and a derrick lower section 5 from bottom to top. The telescopic derrick meets the maximum operation height of the injection head of 18m, and the injection head adjusting and mounting platform meets the adjusting requirements (2-4 m in the longitudinal direction, 0.15m in the transverse direction, and 10 degrees in inclination angle compensation) when the injection head is butted with a wellhead. The length of the telescopic derrick in a transportation state is 16.7m, the transportation length is shortened by 5.3m compared with the transportation length of a derrick with the same specification, and the transportation height is 4.45m, so that the requirement of road transportation of the oil and gas field in China is met. The transportation device can adopt a transportation flat car.

Furthermore, the lifting pushing device is a lifting oil cylinder 2, the movable end of the lifting oil cylinder 2 is hinged with the lower section 5 of the derrick, and the other end of the lifting oil cylinder 2 is hinged with the transportation device; when the lifting oil cylinder 2 lifts the lower section 5 of the derrick to a vertical state, the lifting oil cylinder is fixed with the derrick fixing section 3 by a fixing pin shaft 25. As shown in fig. 2, the derrick is lifted to a vertical state by the lifting cylinder 2 and the fixed pin 25 is inserted, and the upper derrick section 6 extends to the highest state in the lower derrick section 5 by the telescopic cylinder 4 by a derrick telescopic stroke 7m to carry 18 t.

Further, the injection head adjusting and mounting platform comprises a bidirectional track frame 16, the bidirectional track frame 16 is in sliding fit with the telescopic derrick, and the bidirectional track frame 16 is used for sliding vertically along the telescopic derrick; bidirectional track frame 16 is in sliding fit with a slide base 22, and slide base 22 is used for sliding transversely along bidirectional track frame 16.

Further, the sliding base 22 is driven to move by a translation device, the translation device comprises a hydraulic motor 18, the hydraulic motor 18 drives the adjusting screw 17 to rotate through the chain wheel and chain mechanism 19, and the adjusting screw 17 is in threaded fit with the bidirectional track frame 16. As shown in fig. 6-7, the translation device drives the sliding base 22 to move back and forth, and the moving distance is not affected by the height.

Further, the sliding base 22 is rotatably connected with the turnover base 14, the turnover base 14 is driven by the turnover lifting cylinder 20 to perform angle adjustment, the movable end of the turnover lifting cylinder 20 is hinged with the turnover base 14, and the other end of the turnover lifting cylinder 20 is hinged with the sliding base 22; the overturning base 14 is in sliding fit with the sliding support 13, and the sliding support 13 is driven by the telescopic oil cylinder 23 to move laterally. As shown in fig. 9, the sliding bracket 13 can be adjusted to slide left and right by the telescopic cylinder 23.

Furthermore, the top of the sliding support 13 is provided with an injection head mounting platform 12, and the sliding support 13 and the injection head mounting platform 12 are connected through a rotary support bearing 11; the injection head mounting platform 12 is fixed with the sliding support 13 through a limiting pin 24; the bottom of the overturning base 14 is provided with a pipe penetrating winch 15, and the pipe penetrating winch 15 is used for drawing the oil pipe to the injection head through a pulley. As shown in fig. 6, the pipe threading winch 15 can be guided into the injection head through the pulley to pull the oil pipe in the drum to the injection head, thereby facilitating pipe threading. As shown in fig. 8-9, the injector head mounting platform 12 may be rotated horizontally by an appropriate angle, which may then be secured by the stop pin 24. The injection head does not need to be detached from the adjusting platform, and the injection head can be directly transported after being turned over by the turnover lifting oil cylinder 20, so that the labor intensity of dismounting is reduced. As shown in fig. 6 and 7, the tilting base 14 can be angularly adjusted by tilting the lifting cylinder 20.

Further, the injection head adjusting and mounting platform further comprises a hydraulic winch 1, and the hydraulic winch 1 is arranged on the transporting device; a steel wire rope of the hydraulic winch 1 sequentially penetrates through the fixed pulley 7 and the movable pulley 10 and then penetrates through a dead rope device; the fixed pulley 7 is arranged on the top of the derrick upper section 6, and the traveling pulley 10 is arranged on the sliding base 22. As shown in fig. 5-6, the steel wire ropes of the two hydraulic winches 1 penetrate through the top fixed pulley 7, then penetrate through the movable pulley 10 on the injection head adjusting and mounting platform, and finally penetrate through the dead rope device, so that the lifting and lowering functions are realized. And three groups of stable and resistance-reducing pulleys 9 are arranged in the lifting and lowering manner, so that the stable lifting and lowering of the injection head adjusting and mounting platform are realized.

Further, a mechanical locking device 8 is arranged at the top of the lower section 5 of the derrick, and the mechanical locking device 8 is used for locking the position of the upper section 6 of the derrick; the mechanical locking device 8 comprises a locking oil cylinder 81, the locking oil cylinder 81 is hinged with a locking block 82, the middle part of the locking block 82 is rotatably connected with the lower section 5 of the derrick, the front end of the locking block 82 is a limit stop 83, and the limit stop 83 is used for limiting the falling of the upper section 6 of the derrick. The mechanical locking device 8 further includes a position sensor for detecting position information of the limit stopper 83. When the derrick upper section 6 reaches the preset highest position, the oil cylinder 81 for locking pushes the limit stop 83 to the locking position, the position sensor can send out a prompt signal for locking in place, and the derrick upper section 6 can be placed down and firmly fixed.

Preferably, the method for using the telescopic derrick for continuous pipe operation comprises the following steps:

s1: after the coiled tubing operation is transported to the site by using the telescopic derrick, the lower derrick section 5 and the upper derrick section 6 are integrally lifted to a vertical state by using the lifting oil cylinder 2, and the lower derrick section 5 and the derrick fixed section 3 are fixed by installing a fixed pin shaft 25;

s2: the upper section 6 of the derrick is lifted to the using height by using the telescopic oil cylinder 4;

s3: after the upper derrick section 6 is continuously pushed upwards for a certain distance by using the telescopic oil cylinder 4, the mechanical locking device 8 is started, and then the upper derrick section 6 is lowered to enable the upper derrick section 6 to be in contact with the limit stop 83;

s4: the overturning base 14 is overturned to a working position by using an overturning and lifting oil cylinder 20;

s5: the height of the injection head adjusting and mounting platform is adjusted by using a hydraulic winch 1;

s6: the horizontal position of the sliding base 22 is adjusted by a translation device;

s7: fixing the injection head mounting platform 12 and the sliding support 13 by using a limiting pin 24;

s8: and the telescopic oil cylinder 23 is used for finely adjusting the horizontal position of the sliding support 13.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.