CN220979380U

CN220979380U - Guiding deflecting tool

Info

Publication number: CN220979380U
Application number: CN202322466110.4U
Authority: CN
Inventors: 邹刚; 王文浩; 汪建; 刘磊; 杨小城; 方帮绪; 李雄; 孙华林
Original assignee: SJS Ltd
Current assignee: SJS Ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-05-17
Anticipated expiration: 2033-09-12

Abstract

The utility model provides a guiding deflecting tool, which comprises an upper pull rod, a deflecting mandrel jacket, a deflecting mandrel, a lower pull rod and a guide shoe, wherein the upper pull rod is sleeved with the deflecting mandrel jacket; one end of the upper pull rod is used for connecting a steel wire rope, the other end of the upper pull rod is detachably connected with one end of the deflecting mandrel sleeve, the other end of the deflecting mandrel sleeve is rotatably connected with the lower pull rod, and a guide shoe is arranged at one end of the lower pull rod, which is far away from the deflecting mandrel sleeve; a deflecting mandrel is arranged in the deflecting mandrel sleeve, and a deflecting mechanism is arranged between the deflecting mandrel and the lower pull rod; the deflecting mechanism comprises a pressing table spring, a pressing table and a supporting column arranged at the end part of the lower pull rod; the pressing table is elastically connected with the axial direction of the deflecting mandrel through a pressing table spring, a pressing block is arranged between the supporting column and the pressing table, the pressing block is rotatably connected with the deflecting mandrel, and the supporting column is abutted against the pressing block. Can be matched with a steel wire rope tool to be used and put into the eccentric working cylinder, so that the guide shoe is integrated with a pair of side bags of the eccentric working cylinder.

Description

Guiding deflecting tool

Technical Field

The utility model relates to the technical field of petroleum underground development, in particular to a guiding deflecting tool.

Background

Along with the increase of the exploitation intensity of the gas field in China, a large amount of accumulated water and accumulated liquid are generated in the gas field due to long-term exploitation of the gas field, the existence of the accumulated water and the accumulated liquid is extremely unfavorable for the later exploitation of the gas field, if the accumulated water and the accumulated liquid are not timely discharged, the exploitation efficiency of natural gas can be seriously affected, and the gas field can not continue to be exploited in serious cases. The drainage gas production process technology is the most effective method for solving the accumulated liquid in the gas field, and is also a common technology in the production process of the water-flooding gas field.

The throwing and fishing type gas lift valve works underground for a long time, which may cause the sealing mechanism to be pricked and leaked, and the gas lift valve needs to be replaced. If the gas lift valve is replaced by pulling out the inner pipe column of the original well, the airtight oil pipe is possibly damaged in the disassembling process, so that economic loss is caused, and the working period is prolonged. There is a serious hidden danger for site operation safety. The steel wire rope is put into a deflecting tool to be put into and fished, so that the steel wire rope can be recovered under the condition of not moving the pipe column, and the gas lift valve is put in.

Disclosure of utility model

The utility model provides a guiding deflecting tool to solve the technical problem that a gas lift valve is difficult to recover and put in.

In order to solve the technical problems, the utility model provides a guiding deflecting tool, which is characterized by comprising an upper pull rod, a deflecting mandrel jacket, a deflecting mandrel, a lower pull rod and a guide shoe;

One end of the upper pull rod is used for connecting a steel wire rope, the other end of the upper pull rod is detachably connected with one end of the deflecting mandrel sleeve, the other end of the deflecting mandrel sleeve is rotatably connected with the lower pull rod, and a guide shoe is arranged at one end, far away from the deflecting mandrel sleeve, of the lower pull rod;

A deflecting mandrel is arranged in the deflecting mandrel sleeve, and a deflecting mechanism is arranged between the deflecting mandrel and the lower pull rod;

the deflecting mechanism comprises a pressing table spring, a pressing table and a supporting column arranged at the end part of the lower pull rod;

The pressing table is elastically connected with the axial direction of the deflecting mandrel through the pressing table spring, a pressing block is arranged between the supporting column and the pressing table, the pressing block is rotatably connected with the deflecting mandrel, and the supporting column is in butt joint with the pressing block.

Preferably, the guide mechanism is arranged in the guide key accommodating groove of the deflecting mandrel and used for moving along the guide groove in the eccentric working cylinder;

the guide mechanism comprises a guide key, the guide key is rotatably connected with the deflecting mandrel, the guide key is elastically connected with the deflecting mandrel in the radial direction through a return spring, and the guide key rotates to compress the return spring so as to retract into the deflecting mandrel.

Preferably, a release key groove is further formed in the guide key, a release key is arranged in the release key groove, one side of the release key is connected with the guide key through a first steel pin, the other side of the release key is connected with the guide key through a breakable copper pin, and a guide inclined plane is further arranged on the guide key.

Preferably, the guide shoe is rotatably connected with the lower pull rod through a second steel pin, a first deflecting included angle is formed between the guide shoe and the section of the lower pull rod when the guide shoe and the lower pull rod are in a horizontal state, a steel ball is arranged at an opening close to the first included angle, and the steel ball is elastically connected with the axial direction of the lower pull rod through a steel ball spring.

Preferably, the supporting column is arc-shaped, and a boss for limiting the supporting column is arranged on the pressing block.

Preferably, when the deflecting mandrel and the lower pull rod are in a horizontal state, a second deflecting included angle is formed between the deflecting mandrel and the end face of the lower pull rod.

Preferably, the angle of the first deflecting included angle and the second deflecting included angle are both 8 ° to 15 °.

Preferably, the angle of the first deflecting included angle is the same as the angle of the second deflecting included angle.

Preferably, the upper pull rod is in threaded connection with the deflecting mandrel jacket.

The beneficial effects of the utility model at least comprise: the accurate guiding deflecting tool can be matched with a standard steel wire rope tool to be used, can be put into an eccentric working cylinder, can guide a tool string to adjust the phase, and provides deflecting angles consistent with the eccentricity of a working cylinder side bag, so that a pair of eccentric working cylinder side bags is completed. The tool is simple to use, reliable deflection is provided, the casting and fishing operation time is short, and safety risks are avoided.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 5 is an enlarged schematic view of FIG. 1 at C;

In the figure, 1-an upper pull rod; 2-deflecting the mandrel coat; 3-deflecting the mandrel; 4-a lower pull rod; 5-guiding shoes; 6-a deflecting mechanism; 7-pressing a table spring; 8-pressing table; 9-briquetting; 10-prop against the column; 11-a guiding mechanism; 12-a guide key receiving groove; 13-a guide key; 14-guiding inclined plane; 15-a return spring; 16-release keyway; 17-release bond; 18-a first steel pin; 19-breakable copper pins; 20-a second steel pin; 21-a first deflecting angle; 22-steel balls; 23-a steel ball spring; 24-boss; 25-a second deflecting angle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

As shown in fig. 1-2, an embodiment of the present utility model provides a guiding and deflecting tool, comprising an upper pull rod 1, a deflecting mandrel outer sleeve 2, a deflecting mandrel 3, a lower pull rod 4 and a guide shoe 5;

One end of the upper pull rod 1 is used for connecting a steel wire rope, the other end of the upper pull rod 1 is connected with one end of the deflecting mandrel sleeve 2 through threads, the other end of the deflecting mandrel sleeve 2 is rotatably connected with the lower pull rod 4, and a guide shoe 5 is arranged at one end, far away from the deflecting mandrel sleeve 2, of the lower pull rod 4; a deflecting mandrel 3 is arranged in the deflecting mandrel sleeve 2, and a deflecting mechanism 6 is arranged between the deflecting mandrel 3 and the pull-down rod 4.

The deflecting mechanism 6 is shown in fig. 3, and comprises a pressing table spring 7, a pressing table 8 and a supporting column 10 arranged at the end part of the pull-down rod 4;

The pressing table 8 is elastically connected with the axial direction of the deflecting mandrel 3 through the pressing table spring 7, a pressing block 9 is arranged between the supporting column 10 and the pressing table 8, the pressing block 9 is rotatably connected with the deflecting mandrel 3, and the supporting column 10 is in butt joint with the pressing block 9. Like this, can upwards jar through wire rope, can form an axial ascending effort to leading the deflecting tool, at this moment, lower pull rod 4 can anticlockwise rotate, owing to support post 10 and briquetting 9 butt to drive briquetting 9 and carry out anticlockwise rotation, when briquetting 9 carries out anticlockwise rotation, can compress platen spring 7, thereby make and form certain angle between lower pull rod and the deflecting dabber 3, accomplish the deflecting.

Further, the embodiment of the utility model further comprises a guiding mechanism 11 for moving along the guiding groove in the eccentric working cylinder, wherein the guiding mechanism 11 is arranged in the guiding key accommodating groove 12 of the deflecting mandrel 3;

The guiding mechanism 11 comprises a guiding key 13, the guiding key 13 is rotatably connected with the deflecting mandrel 3, the guiding key 13 is elastically connected with the deflecting mandrel 3 in the radial direction through a return spring 15, and the guiding key 13 rotates to compress the return spring 15 so as to retract into the deflecting mandrel 3. Like this, when the external space reduces, can compress through reset spring 15 for guide key 13 shrink near deflecting mandrel 3, thereby pass through smoothly, after the outside space grow, can pop out guide key 13 again, cooperate through the guide key with the guide slot in the eccentric working cylinder, can guide the pipe cluster to get into in proper phase place in the eccentric working cylinder.

Still further, a release key slot 16 is further provided on the guide key 13, a release key 17 is provided in the release key slot 16, one side of the release key 17 is connected with the guide key 13 through a first steel pin 18, the other side of the release key 17 is connected with the guide key 13 through a breakable copper pin 19, and a guide inclined plane 14 is further provided on the guide key 13. Therefore, after the pipe string is adjusted to the phase corresponding to the working cylinder side bag, the corresponding working cylinder side bag can be clamped into the release key 17 more conveniently to finish positioning work, at the moment, the steel wire rope can be used for jolt upwards, the breakable copper pin 19 is sheared off, and the guide key 13 can be contracted in the small-inner-diameter oil pipe after the positioning work is finished.

Further, the guide shoe 5 is rotatably connected with the lower pull rod 4 through a second steel pin 20, when the guide shoe 5 and the lower pull rod 4 are in a horizontal state, a first deflecting included angle 21 is formed on the section of the guide shoe 5 and the lower pull rod 4, a steel ball 22 is arranged at an opening close to the first included angle, and the steel ball 22 is elastically connected with the lower pull rod 4 in the axial direction through a steel ball spring 23. Therefore, the guide shoe 5 can also generate a deflecting function through the steel ball 22, the steel ball spring 23 and the first deflecting clamp angle 21, and the guide shoe 5 and the lower pull rod 4 can also generate a certain angle by compressing the steel ball 22 to drive the steel ball spring 23 to move and reduce the angle of the first deflecting clamp angle 21.

Further, the abutment post 10 is in a circular arc shape, and the pressing block 9 is provided with a boss 24 for limiting the abutment post 10. Thus, after the abutment 10 rotates, a certain limit can be generated on the abutment 10 through the boss 24; when the external shrinkage is difficult to pass, the abutment post 10 is circular arc-shaped, so that the reset can be better.

Further, when the deflecting mandrel 3 and the pull-down rod 4 are in a horizontal state, a second deflecting included angle 25 is formed between the deflecting mandrel 3 and the end surface of the pull-down rod 4.

Still further, the angle of the first deflecting angle 21 and the second deflecting angle 25 are each 8 ° to 15 °. Thus, the angle range of 8 DEG to 15 DEG can better meet the deflecting requirement.

Further, the angle of the first deflecting angle 21 is the same as the angle of the second deflecting angle 25. Like this, because the angle of first deflection contained angle 21 and second deflection contained angle 25 is the same, when the biggest deflection degree, both parts skew the same angle to make the shoes and the deflecting tool wholly be parallel state, just can be better aim at the side pocket of eccentric working cylinder, better completion salvage work.

When the embodiment of the utility model is used, in the well completion stage of the gas well, the gas lift valve is lowered into the bottom of the well along with the eccentric working cylinder and the well is completed. In the later stage of gas well production, because of the increase of the accumulated liquid in the well, in order to improve the yield, the gas lift valve needs to be opened through casing gas injection to drain and produce gas. Because the time for descending into the bottom of the well is too long, the condition that the gas lift valve is invalid may occur, and the gas lift valve needs to be taken out and replaced. In order to ensure construction safety, a fixed pipe column is adopted, and a steel wire rope is put into a tool to drag out the gas lift valve. The retrieval tool and the guided deflecting tool of embodiments of the present utility model are connected by a wireline tool.

When the steel wire rope is lowered to a preset depth, the upper shock is lifted, the breakable copper pin 19 is sheared, the guide key 13 can be retracted into the oil pipe through the lifting, the lower pull rod 4 is along the inclined plane of the lower end of the deflecting mandrel 3 in the upper shock process, and the guide shoe 5 is driven upwards. The shoe 5 is limited by the eccentric cylinder inner diameter and presses the steel ball 22 along the first bevelled clamping angle. The pipe string is downward, and the recovery tool drags out the gas lift valve. In the lifting process, the inner diameter of the eccentric working cylinder is reduced to the inner diameter of the oil pipe, the space is reduced to squeeze the lower pull rod 4, and the lower pull rod 4 and the guide shoe 5 are restored to the original relative positions under the action of the pressing table spring 7 and the steel ball spring 23, so that the lower pull rod is convenient to take out. Otherwise, the throwing gas lift valve adopts the same principle, and the steel wire rope is connected with the deflecting tool, the well conveying tool and the gas lift valve to be simultaneously put in. And lifting and deflecting after the target depth is lowered. And then the pipe string is lowered, and the gas lift valve is set on the side bag of the eccentric working cylinder.

The foregoing embodiments may be combined in any way, and all possible combinations of the features of the foregoing embodiments are not described for brevity, but only the preferred embodiments of the utility model are described in detail, which should not be construed as limiting the scope of the utility model. The scope of the present specification should be considered as long as there is no contradiction between the combinations of these technical features.

It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A guiding deflecting tool, characterized in that: comprises an upper pull rod (1), a deflecting mandrel coat (2), a deflecting mandrel (3), a lower pull rod (4) and a guide shoe (5);

One end of the upper pull rod (1) is used for being connected with a steel wire rope, the other end of the upper pull rod (1) is detachably connected with one end of the deflecting mandrel sleeve (2), the other end of the deflecting mandrel sleeve (2) is rotatably connected with the lower pull rod (4), and a guide shoe (5) is arranged at one end, far away from the deflecting mandrel sleeve (2), of the lower pull rod (4);

A deflecting mandrel (3) is arranged in the deflecting mandrel jacket (2), and a deflecting mechanism (6) is arranged between the deflecting mandrel (3) and the lower pull rod (4);

The deflecting mechanism (6) comprises a pressing table spring (7), a pressing table (8) and a supporting column (10) arranged at the end part of the pull-down rod (4);

The pressing table (8) is elastically connected with the axial direction of the deflecting mandrel (3) through a pressing table spring (7), a pressing block (9) is arranged between the supporting column (10) and the pressing table (8), the pressing block (9) is rotatably connected with the deflecting mandrel (3), and the supporting column (10) is abutted to the pressing block (9).

2. A guiding deflecting tool as defined in claim 1, wherein: the guide mechanism (11) is used for moving along the guide groove in the eccentric working cylinder, and the guide mechanism (11) is arranged in the guide key accommodating groove (12) of the deflecting mandrel (3);

The guide mechanism (11) comprises a guide key (13), the guide key (13) is rotatably connected with the deflecting mandrel (3), the guide key (13) is elastically connected with the deflecting mandrel (3) in the radial direction through a return spring (15), and the guide key (13) rotates to compress the return spring (15) so as to retract into the deflecting mandrel (3).

3. A guiding deflecting tool as defined in claim 2, wherein: the novel guide key is characterized in that a release key groove (16) is further formed in the guide key (13), a release key (17) is arranged in the release key groove (16), one side of the release key (17) is connected with the guide key (13) through a first steel pin (18), the other side of the release key (17) is connected with the guide key (13) through a breakable copper pin (19), and a guide inclined surface (14) is further arranged on the guide key (13).

4. A guiding deflecting tool as defined in claim 1, wherein: the guide shoe (5) is rotatably connected with the lower pull rod (4) through a second steel pin (20), when the guide shoe (5) is in a horizontal state with the lower pull rod (4), a first deflecting included angle (21) is formed on the section of the guide shoe (5) and the section of the lower pull rod (4), a steel ball (22) is arranged at an opening close to the first included angle, and the steel ball (22) is elastically connected with the axial direction of the lower pull rod (4) through a steel ball spring (23).

5. The guided deflecting tool of claim 4, wherein: the supporting column (10) is arc-shaped, and a boss (24) used for limiting the supporting column (10) is arranged on the pressing block (9).

6. The guided deflecting tool of claim 5, wherein: when the deflecting mandrel (3) and the lower pull rod (4) are in a horizontal state, a second deflecting included angle (25) is formed between the deflecting mandrel (3) and the end face of the lower pull rod (4).

7. The guided deflecting tool of claim 6, wherein: the angle of the first deflecting included angle (21) and the second deflecting included angle (25) are both 8-15 degrees.

8. The guided deflecting tool of claim 7, wherein: the angle of the first deflecting included angle (21) is the same as the angle of the second deflecting included angle (25).

9. A guiding deflecting tool as defined in claim 1, wherein: the upper pull rod (1) is connected with the deflecting mandrel jacket (2) through threads.