CN210714503U - Prevent changeing and promote nipple joint and prevent changeing connection structure - Google Patents

Abstract

The utility model provides a prevent changeing and promote nipple joint and prevent changeing connection structure relates to oil well completion technical field, should prevent changeing the working chamber that promotes the nipple joint and link up from top to bottom for the cylindrical body of vertical setting and have, the internal thread has been seted up on the inner wall of its bottom of working chamber, still be equipped with a boss on the inner wall of working chamber, the boss is located the internal thread top and has the mounting hole of seting up along vertical direction, the cartridge has the spacer pin in the mounting hole, the inner wall sliding fit of spacer pin and mounting hole, and the bottom of the protruding bottom to the working chamber of bottom ability of spacer pin. The utility model provides a prevent changeing and promote nipple joint and prevent changeing connection structure can effectively avoid the perforation rifle and promote the dropout that the nipple joint takes place because of rotating relatively.

Description

Prevent changeing and promote nipple joint and prevent changeing connection structure

Technical Field

The utility model relates to an oil well completion technical field, in particular to prevent changeing promotion nipple joint and prevent changeing connection structure for perforating gun plays down.

Background

Perforation is the most important completion method used in various oil fields at home and abroad at present, and accounts for more than 90% of the total completion number. With the deep research of perforation technology, people gradually improve the understanding of safety risks in the whole process of perforation. Because the perforating gun contains initiating explosive devices such as perforating bullets, detonating cords and the like, safety risk factors exist when the perforating gun is pulled out from an oil well on site. In the prior art, when a perforating gun is pulled up and down, a single perforating gun is generally hoisted by a hoisting short joint and sent into an oil well. At the in-process of taking off of perforation gun, promote the nipple joint and probably block because fatlute or piece, at this moment, perforation gun and promotion nipple joint have the trend of taking place relative rotation, and then take place to move back and detain the accident, and then produce the safety risk.

In view of the above, the inventor designs an anti-rotation lifting short section and an anti-rotation connecting structure through repeated experiments according to production design experiences of the field and related fields for many years, so as to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an prevent changeing and promote nipple joint and prevent changeing connection structure, can effectively avoid the perforation rifle and promote the dropout that the nipple joint takes place because of relative rotation.

In order to achieve the above object, the utility model provides an prevent changeing promotion nipple joint, wherein, prevent changeing the working chamber that promotes the nipple joint for the cylindrical body of vertical setting and have lining up from top to bottom, the internal thread has been seted up on the inner wall of its bottom of working chamber, still be equipped with a boss on the inner wall of working chamber, the boss is located the internal thread top just has the mounting hole of seting up along vertical direction, the cartridge has the spacer pin in the mounting hole, the spacer pin with the inner wall sliding fit of mounting hole, just the bottom of spacer pin can stretch to the bottom of working chamber.

Prevent changeing and promote nipple joint as above, wherein, the top protrusion of spacer pin in the boss, the top of spacer pin is provided with the handle, the handle is followed the radial setting of spacer pin, prevent changeing to promote on the lateral wall of nipple joint seted up with the handle corresponds the complex slide, the one end of slide is higher than the other end of slide, the handle runs through the slide with and the lateral wall sliding fit of slide.

The anti-rotation lifting short section comprises a mounting hole, wherein a first limiting platform protruding inwards in the radial direction of the mounting hole is arranged on the side wall of the top end of the mounting hole, a second limiting platform protruding outwards in the radial direction of the limiting pin is arranged on the outer wall of the limiting pin, the second limiting platform is in sliding fit with the inner wall of the mounting hole, a spring is sleeved outside the limiting pin, and the spring is tightly pressed between the first limiting platform and the second limiting platform.

The anti-rotation lifting short section is characterized in that the sliding way is obliquely arranged.

The anti-rotation lifting short section comprises a first section and a second section, wherein the first section is obliquely arranged, the second section is vertically arranged, the top end of the first section is communicated with the top end of the second section, and the bottom end of the second section is higher than the bottom end of the first section.

The anti-rotation lifting short section comprises a sliding way, wherein the sliding way is L-shaped and comprises a vertical part and a horizontal part, and the horizontal part is positioned above the vertical part.

The utility model also provides a prevent changeing connection structure, wherein, prevent changeing connection structure include the perforation rifle and as above prevent changeing and promote the nipple joint, the top of perforation rifle has the joint, the external screw thread that is used for connecting is offered to the lateral wall that connects, seted up on the top surface that connects with the spacer pin corresponds the spacing hole of complex.

Prevent changeing connection structure as above, wherein, the top protrusion of spacer pin in the boss, the top of spacer pin is provided with the handle, the handle is followed the radial setting of spacer pin, prevent changeing on the lateral wall that promotes the nipple joint seted up with the handle corresponds the complex slide, the one end of slide is higher than the other end of slide, the handle runs through the slide with and the lateral wall sliding fit of slide.

The anti-rotation connecting structure comprises a mounting hole, wherein a first limiting platform protruding inwards in the radial direction of the mounting hole is arranged on the side wall of the top end of the mounting hole, a second limiting platform protruding outwards in the radial direction of the limiting pin is arranged on the outer wall of the limiting pin, the second limiting platform is in sliding fit with the inner wall of the mounting hole, a spring is sleeved outside the limiting pin, and the spring is tightly pressed between the first limiting platform and the second limiting platform.

The anti-rotation connecting structure is characterized in that the top surface of the joint is further provided with a guide groove correspondingly matched with the slide way, the guide groove is arc-shaped, one end of the guide groove is a starting point end, the other end of the guide groove is a terminal point end, the depth of the guide groove is gradually reduced from the starting point end to the terminal point end, the direction from the starting point end to the terminal point end is the same as the rotating direction of the external thread, and the starting point end coincides with the limiting hole.

Compared with the prior art, the utility model has the following characteristics and advantages:

the utility model provides a prevent changeing and promote nipple joint and prevent changeing connection structure, after preventing changeing promotion nipple joint and perforation rifle threaded connection, make the spacer pin lapse and insert the spacing downthehole that is located the joint top surface to the restriction is prevented changeing and is promoted the relative rotation between nipple joint and the perforation rifle, has just also avoided preventing changeing and has promoted the taking place dropout between nipple joint and the perforation rifle, has guaranteed the production safety when the perforation rifle plays off.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.

Fig. 1 is a schematic structural view of an anti-rotation lifting nipple of the utility model;

fig. 2 is a schematic structural view of the middle slide rail of the present invention;

FIG. 3 is a schematic structural diagram of a joint of the perforator in the present invention;

fig. 4 is a schematic structural view of the middle guide groove of the present invention.

Description of reference numerals:

10. the anti-rotation lifting short section;

11. a working chamber; 12. An internal thread;

13. a boss; 14. Mounting holes;

15. a spacing pin; 16. A handle;

17. a slideway; 171. A first stage;

172. a second stage; 18. A spring;

20. a perforating gun; 21. A joint;

22. an external thread; 23. A limiting hole;

24. a guide groove; 141. A first limit table;

151. and a second limit table.

Detailed Description

The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention.

As shown in fig. 1 to 4, the utility model provides a prevent changeing and promote nipple joint 10, should prevent changeing and promote nipple joint 10 for the cylindrical body of vertical setting and have the working chamber 11 that link up from top to bottom, internal thread 12 has been seted up on the inner wall of working chamber 11 bottom, still be equipped with a boss 13 on the inner wall of working chamber 11, boss 13 is located internal thread 12's top and has the mounting hole 14 of seting up along vertical direction, spacer pin 15 is equipped with in the 14 interpolations of mounting hole, spacer pin 15 and 14 inner wall sliding fit of mounting hole, and the bottom of spacer pin 15 can stretch out to the bottom of working chamber 11.

The utility model discloses still provide a prevent changeing connection structure, should prevent changeing connection structure and promote nipple joint 10 and perforation gun 20 including preventing changeing, wherein, its top of perforation gun 20 has joint 21, and the external screw thread 22 that is used for connecting is offered to the lateral wall that connects 21, offers on the top surface that connects 21 to correspond the spacing hole 23 of complex with spacer pin 15.

The utility model provides a prevent changeing and promote nipple joint and prevent changeing connection structure, after preventing changeing promotion nipple joint 10 and perforation rifle 20 threaded connection, make 15 lapse of spacer pin and insert in the spacing downthehole 23 that is located the joint 21 top surface to the restriction is prevented changeing the relative rotation between promotion nipple joint 10 and the perforation rifle 20, has just also avoided preventing changeing and has taken place the dropout between promotion nipple joint 10 and the perforation rifle 20, has guaranteed the production safety when perforation rifle 20 plays down.

The utility model discloses in, the top protrusion of spacer pin 15 is in boss 13, and the top of spacer pin 15 is provided with along spacer pin 15's radial convex handle 16, prevents changeing to offer on the lateral wall that promotes nipple joint 10 and correspond complex slide 17 with handle 16, and slide 17's one end is higher than slide 17's the other end, and handle 16 runs through slide 17 and slide 17's lateral wall sliding fit. Therefore, the worker can control the limiting pin 15 to slide up and down through the handle 16 extending out of the anti-rotation lifting nipple 10, and the operation is convenient; when handle 16 is in the one end that slide 17 is located the eminence, spacer pin 15 is in the state of breaking away from with spacing hole 23, perforation gun 20 can rotate relatively with preventing changeing between the lifting nipple 10, perforation gun 20 can conveniently be from preventing changeing lifting nipple 10 and dismantling the unloading, when handle 16 is in the other end that slide 17 is located the low department, spacer pin 15 inserts in spacing hole 23, perforation gun 20 can not rotate relatively with preventing changeing between the lifting nipple 10, perforation gun 20 can't throw off through breaking out with preventing changeing between the lifting nipple 10.

In an alternative example, the slide 17 is arranged obliquely. Of course, the slide way 17 may also be arranged along the vertical direction, as long as it can be ensured that the handle 16 can drive the limit pin 15 to slide up and down when sliding along the slide way 17.

In another alternative example, the chute 17 includes a first section 171 disposed obliquely and a second section 172 disposed vertically, the top end of the first section 171 communicates with the top end of the second section 172, and the bottom end of the second section 172 is higher than the bottom end of the first section 171 (the first section 171 is longer than the second section 172). Before the anti-rotation lifting sub 10 is connected with the perforating gun 20, the handle 16 is slid to the bottom end of the first section 171, the limiting pin 15 is inserted into the limiting hole 23, and then the relative rotation between the perforating gun 20 and the anti-rotation lifting sub 10 is limited; when the anti-rotation lifting nipple 10 needs to be dismounted, the handle 16 is slid to the bottom end of the second section 172, the limit pin 15 is separated from the limit hole 23, at the moment, the anti-rotation lifting nipple 10 does not have a rotation limit function, the anti-rotation lifting nipple 10 is rotated in the opposite direction, and the anti-rotation lifting nipple 10 can be dismounted.

Furthermore, the side wall of the top end of the mounting hole 14 is provided with a first limiting platform 141 protruding inwards along the radial direction of the mounting hole 14, the outer wall of the limiting pin 15 is provided with a second limiting platform 151 protruding outwards along the radial direction of the limiting pin 15, the second limiting platform 151 is in sliding fit with the inner wall of the mounting hole 14, the limiting pin 15 is sleeved with a spring 18, and the spring 18 is tightly pressed between the first limiting platform 141 and the second limiting platform 151, so that when the handle 16 is located at the first section 171 of the slideway 17, the handle 16 can automatically slide to the bottom end of the first section 171 under the action of the elastic force of the spring 18, and when the handle 16 is located at the second section 172 of the slideway 17, the handle 16 can automatically slide to the bottom end of the second section 172 under the action of the elastic force of the spring 18. Therefore, the operation of the side of a worker is facilitated, the limiting pin 15 can not slide randomly when the perforating gun is used, and the perforating gun 20 and the anti-rotation lifting nipple 10 are further guaranteed not to be tripped.

In an optional example of the present invention, the top surface of the joint 21 is further provided with a guide groove 24 corresponding to and matching with the limit pin 15, the guide groove 24 is arc-shaped (the center position of the arc coincides with the center of the top surface of the joint 21) 0, one end of the guide groove 24 is a starting point end, the other end of the guide groove 24 is a terminal point end, and the starting point end is communicated with the limit hole 23.

Preferably, the direction from the starting point end to the ending point end of the guide groove 2 is the same as the rotation direction of the external thread 22 of the joint 21, the depth of the starting point end of the guide groove 24 is the same as the depth of the limit hole 23, the depth of the guide groove 24 gradually decreases from the starting point end to the ending point end, and the depth of the ending point end of the guide groove 24 is zero, thereby ensuring that the limit pin 15 can smoothly move out of the limit hole 23. When the perforating gun 20 and the anti-rotation lifting sub 10 are connected, the joint 21 of the perforating gun 20 is gradually close to the limiting pin 15, and in the process of rotating and fastening the joint 21, even if the limiting pin 15 is inserted into the limiting hole 23, the limiting pin 15 can smoothly move out of the limiting hole 23 along the guide groove 24 along with the rotation of the joint 21, so that the connection between the perforating gun 20 and the anti-rotation lifting sub 10 cannot be influenced; and when the perforating gun 20 and the anti-rotation lifting nipple 10 have a tripping trend and the machine joint 21 has a trend of rotating in the opposite direction, the limiting pin 15 cannot be separated from the limiting hole 23 due to the fact that the guide groove 24 is not arranged on the other side of the limiting hole 23, and therefore the perforating gun 20 and the anti-rotation lifting nipple 10 cannot be tripped.

The utility model discloses an optional example, the top of preventing changeing lifting nipple joint 10 is provided with hangs the part, prevents changeing lifting nipple joint 10 and can install on the elevator through this hanging the part.

Please refer to fig. 1 to 4, a detailed description will be given of the specific use process of the anti-rotation connecting structure and the anti-rotation lifting pipe nipple of the present invention:

first, before the anti-rotation lifting sub 10 is connected to the perforating gun 20, the handle 16 is slid to the first section 171 (long chute) of the chute 17.

Then, connecting the perforating gun 20 with the anti-rotation lifting sub 10, enabling a joint 21 of the perforating gun 20 to gradually approach a limiting pin 15, enabling the limiting pin 15 to enter a limiting hole 23 on the top surface of the joint 21 firstly under the action of elastic force of a spring 18, then, in the rotating process of the joint 21, enabling the limiting pin 15 to slide out of a guide groove 24 to the top surface of the joint 21 along the guide groove 24 to overcome stress of the spring 18, and not affecting the mutual rotation between the joint 21 and the anti-rotation lifting sub 10; when the external thread 22 on the joint 21 is completely screwed on the internal thread 12 of the anti-rotation lifting sub 10, the limit pin 15 is inserted into the limit hole 23 in an aligned manner, and then the connection between the perforating gun 20 and the anti-rotation lifting sub 10 is completed.

After the perforation gun 20 is connected with the anti-rotation lifting nipple 10, if the perforation gun 20 and the anti-rotation lifting nipple 10 have a tripping trend, the perforation gun 20 and the anti-rotation lifting nipple 10 cannot be separated through shackle because the limiting pin 15 is inserted into the limiting hole 23.

When the anti-rotation lifting sub 10 needs to be detached, the handle 16 is slid to the second section 172 (short slideway) of the slideway 17, and the limit pin 15 is separated from the limit hole 23 of the joint 21 of the perforating gun 20. At this moment, the anti-rotation lifting nipple 10 has no rotation limiting function, the anti-rotation lifting nipple 10 is rotated in the opposite direction, and the anti-rotation lifting nipple 10 can be detached.

In the following description of the embodiments, the invention is described in detail, but the description is not to be construed as limiting the invention for any reason, and in particular, the features described in the different embodiments may be combined with each other as desired, thereby forming other embodiments, and the features are understood to be applicable to any one embodiment and not limited to the described embodiments unless explicitly described to the contrary.

Claims (10)

1. The utility model provides an prevent changeing and promote nipple joint, its characterized in that, prevent changeing the working chamber that promotes the nipple joint for the cylindrical body of vertical setting and have lining up from top to bottom, the internal thread has been seted up on the inner wall of its bottom of working chamber, still be equipped with a boss on the inner wall of working chamber, the boss is located the internal thread top just has the mounting hole of seting up along vertical direction, the cartridge has the spacer pin in the mounting hole, the spacer pin with the inner wall sliding fit of mounting hole, just the bottom of spacer pin can stretch to the bottom of working chamber.

2. An anti-rotation lifting short section according to claim 1, characterized in that the top end of the limit pin protrudes out of the boss, the top end of the limit pin is provided with a handle, the handle is arranged along the radial direction of the limit pin, the side wall of the anti-rotation lifting short section is provided with a slide way correspondingly matched with the handle, one end of the slide way is higher than the other end of the slide way, and the handle penetrates through the slide way and is in sliding fit with the side wall of the slide way.

3. The anti-rotation lifting sub of claim 2, wherein the side wall of the top end of the mounting hole is provided with a first limiting platform protruding inwards along the radial direction of the mounting hole, the outer wall of the limiting pin is provided with a second limiting platform protruding outwards along the radial direction of the limiting pin, the second limiting platform is in sliding fit with the inner wall of the mounting hole, the limiting pin is sleeved with a spring, and the spring is compressed between the first limiting platform and the second limiting platform.

4. An anti-rotation lifting sub according to claim 2, characterized in that the slideway is arranged obliquely.

5. The anti-rotation lifting sub of claim 2, wherein the slideway comprises a first section and a second section, the first section is arranged obliquely, the top end of the first section is communicated with the top end of the second section, and the bottom end of the second section is higher than the bottom end of the first section.

6. The anti-rotation lift sub of claim 2, in which the slideway is L-shaped, the slideway comprising a vertical portion and a horizontal portion, the horizontal portion being located above the vertical portion.

7. An anti-rotation connecting structure, characterized in that the anti-rotation connecting structure comprises a perforating gun and an anti-rotation lifting sub as claimed in any one of claims 1 to 6, the top end of the perforating gun is provided with a joint, the outer side wall of the joint is provided with an external thread for connection, and the top surface of the joint is provided with a limiting hole correspondingly matched with the limiting pin.

8. An anti-rotation connecting structure according to claim 7, wherein the top end of the limit pin protrudes out of the boss, the top end of the limit pin is provided with a handle, the handle is arranged along the radial direction of the limit pin, the side wall of the anti-rotation lifting short section is provided with a slide way correspondingly matched with the handle, one end of the slide way is higher than the other end of the slide way, and the handle penetrates through the slide way and is in sliding fit with the side wall of the slide way.

9. An anti-rotation connecting structure according to claim 8, wherein the mounting hole is provided at a top end thereof with a first stopper on a side wall thereof projecting inward in a radial direction of the mounting hole, the stopper pin is provided at an outer wall thereof with a second stopper projecting outward in the radial direction of the stopper pin, the second stopper is slidably fitted to an inner wall of the mounting hole, and the stopper pin is externally fitted with a spring which is compressed between the first stopper and the second stopper.

10. An anti-rotation connecting structure according to claim 9, wherein a guide groove that is correspondingly fitted with the slide is further formed in the top surface of the joint, the guide groove is arc-shaped, one end of the guide groove is a starting end, the other end of the guide groove is an ending end, the depth of the guide groove is gradually reduced from the starting end to the ending end, the direction from the starting end to the ending end is the same as the turning direction of the external thread, and the starting end coincides with the limiting hole.

Images