CN218439313U

CN218439313U - Pump injection plugging device for puncture well head

Info

Publication number: CN218439313U
Application number: CN202221652894.9U
Authority: CN
Inventors: 李建力; 赵佳; 申成锋; 兰洁; 路永和; 曹锡
Original assignee: China Petroleum and Chemical Corp; Sinopec Northwest Oil Field Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Northwest Oil Field Co
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-02-03
Anticipated expiration: 2032-06-29

Abstract

The utility model provides a thorn leaks wellhead pump and annotates plugging device, include: the first tee joint comprises two inlets and an outlet; one end of the storage pipe is connected with an outlet of the first tee joint, and the other end of the storage pipe is connected with a third plug valve; the pressure relief cock is arranged on the first tee joint; the second plug valve is arranged on one inlet of the first tee joint; and the first plug valve is arranged on the other inlet of the first tee joint. The utility model discloses can accomplish the leaking stoppage under the high pressure environment in the well, avoid the blowout accident to worsen.

Description

Pump injection plugging device for leakage-piercing well head

Technical Field

The utility model belongs to the technical field of oil and gas exploitation, specifically, relate to a thorn leaks wellhead pump and annotates plugging device.

Background

During the operation of an oil or gas well, some unexpected conditions may occur, resulting in a wellhead leak. For example, the high temperature of the stratum causes the casing to extend, the wellhead to lift, and the well control device to puncture; the sand production of the high-pressure well stratum causes the puncture of a well mouth; wellhead component failure causes puncture and leakage; the perforation of the flange of the well head is punctured due to long-term gas injection and water injection corrosion; and blowout caused by blowout preventer failure and the like when the polished rod of the pumping well breaks and falls off the well.

After the wellhead leaks, the filler is usually used for plugging and killing the well, and then the plugging and killing are carried out. However, the prior leaking stoppage technology of the leaking wellhead has no deep professional research in China, and has no professional process and technology of a system, and as no professional wellhead leaking stoppage theory, team, leaking stoppage equipment, leaking stoppage material storage and the like exist, the leaking stoppage technology is often urged to deal with in emergency, and the ideal effect is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

To the technical problem as above, the utility model aims at providing a thorn leaks wellhead pump and annotates plugging device, and it can effectively suppress the well head thorn and leak, provides the condition for killing a well.

According to the utility model discloses, a thorn hourglass wellhead pump is annotated plugging device is provided, include: a first tee, the first tee comprising two inlets and an outlet; one end of the storage pipe is connected with an outlet of the first tee joint, and the other end of the storage pipe is connected with a third plug valve which is used for being communicated with a wellhead; the pressure relief cock is arranged on the first tee joint; the second plug valve is arranged on one inlet of the first tee joint and used for receiving the filler; and the first plug valve is arranged on the other inlet of the first tee joint.

In one embodiment, a filler hopper is provided at the inlet of the second stopcock.

In one embodiment, leaking stoppage device is annotated to thorn hourglass well head pump still includes second tee bend, fourth plug valve and third tee bend, the second tee bend includes an import and two exports, the third tee bend includes two imports and an export, an export of second tee bend with first plug valve is connected, an import of third tee bend with the third plug valve is connected, the fourth plug valve sets up another export of second tee bend with between another import of third tee bend.

In one embodiment, the leaking stoppage device is annotated to thorn hourglass mouth pump still includes fourth tee bend and fifth plug valve, the fourth tee bend includes two imports and an export, the export of fourth tee bend with the access connection of second tee bend, fifth plug valve with one of them access connection of fourth tee bend, another import of fourth tee bend is the pump and annotates the mouth.

In one embodiment, the leaking stoppage device for pumping injection of the leaking stoppage wellhead further comprises a base, and the base is arranged at the bottoms of the second tee and the third tee.

In one embodiment, the central axis of the inlet of the fourth tee connected with the fifth plug valve coincides with the central axis of the outlet.

In one embodiment, the central axis of the pump nozzle forms an angle of 45 ° with the central axis of the inlet of the fourth tee connected to the fifth stopcock.

In one embodiment, the angle between the central axis of the inlet of the third tee connected to the third stopcock and the central axis of the other inlet of the third tee is 45 °.

In one embodiment, a pressure gauge is arranged on the first tee joint.

In one embodiment, the effective length of the storage pipe is 1.2m, the volume is 4L, and the diameter of the outlet of the third tee is 52mm.

Compared with the prior art, the method and the device have the following advantages.

The utility model discloses be provided with first tee bend and with first tee junction's second plug valve, first plug valve, storage pipe and third plug valve, in the course of the work, through mutually supporting of first plug valve, second plug valve and third plug valve, accomplish the leaking stoppage. In the process of packing, the second plug valve is the on-state, and first plug valve and third plug valve are the off-state, packs from the entry of second plug valve, packs the back of accomplishing, closes the second plug valve, opens first plug valve and third plug valve, annotates pressure to the import pump of first plug valve simultaneously to promote the material of packing to flow from the export of third plug valve, get into and leak stoppage in the well. And after the filled materials are pumped, closing the first plug valve and the third plug valve, and releasing pressure through the pressure release cock on the first tee joint to prepare for next filling. Through the arrangement, the leakage stoppage can be completed in the high-pressure environment in the well, and the well blowout accident deterioration is avoided.

Drawings

The present invention will be described with reference to the accompanying drawings.

Fig. 1 shows a schematic diagram of an embodiment of a pump injection plugging device for a stabbing leakage wellhead according to the present invention.

In the figure: 1. a first plug valve; 2. a first tee joint; 3. a second plug valve; 4. a third plug valve; 5. decompression cock; 6. a storage pipe; 11. a filling hopper; 12. a second tee joint; 13. a fourth plug valve; 14. a third tee joint; 15. a fourth tee joint; 16. a fifth plug valve; 17. a pump nozzle; 21. a base; 31. and a pressure gauge.

In the present application, the drawings are schematic, merely illustrative of the principles of the invention, and are not drawn to scale.

Detailed Description

Fig. 1 shows the structure of the pump injection plugging device 100 for a puncture wellhead according to the present invention. As shown in fig. 1, the leaking stoppage device 100 for pumping injection of the leaking wellhead comprises a first stopcock 1, a second stopcock 3, a third stopcock 4, a storage pipe 6 with an effective length of 1.2m and a volume of 4L, and a first tee joint 2. Wherein, first tee bend 2 includes two imports and an export, and the one end of storage pipe 6 is connected in the export of first tee bend 2, and the other end and the third plug valve 4 of storage pipe 6 are connected, and two imports of first tee bend 2 are connected with first plug valve 1 and second plug valve 3 respectively, still are provided with pressure release cock 5 and manometer 31 on first tee bend 2. Wherein, pressure release cock 5 and manometer 31 can set up on the pipeline with 2 lug connection of first tee bend, and pressure release cock 5 can play the effect to 2 pressure releases of first tee bend, and manometer 31 can detect the pressure in the first tee bend 2 simultaneously can. By the arrangement, the filling and pumping plugging can be completed while facing high pressure in the well. The working principle is as follows: firstly, connecting an outlet of a third plug valve 4 with a wellhead in a sealing manner, opening a second plug valve 3, closing a first plug valve 1 and the third plug valve 4, filling materials from an inlet of the second plug valve 3, and enabling the filled materials to pass through the second plug valve 3 and then enter a storage pipe 6; after the material storage pipe 6 is filled with materials, the second plug valve 3 is closed, the first plug valve 1 and the third plug valve 4 are opened, and pressure is pumped to the inlet of the first plug valve 1 at the same time, so that the filled materials are pushed to flow out from the outlet of the third plug valve and enter the well for plugging; and after the filled material is pumped, closing the first plug valve and the third plug valve, and releasing pressure through a pressure release cock on the first tee joint to prepare for next filling, and circulating for many times until plugging is successful.

According to a preferred embodiment of the invention the centre axes of the second plug valve 3, the storage pipe 6 and the third plug valve 4 coincide and the second plug valve 3 is located in the upper part of the storage pipe 6. By this arrangement, the packing can be facilitated. In addition, a filling hopper 11 is arranged at the inlet of the second plug valve 3, and the filling hopper 11 is of a conical structure, so that filling is facilitated.

In a preferred embodiment, the lost circulation wellhead pumping and plugging device 100 further comprises a second tee 12, a third tee 14 and a fourth stopcock 13. The inlet of the first stopcock 1 is connected with a second tee joint 12, the outlet of the third stopcock 4 is connected with a third tee joint 14, and a fourth stopcock 13 is connected and arranged between the second tee joint 12 and the third tee joint 14. Namely, the third tee 14 comprises two inlets, and the two inlets of the third tee are respectively connected with the third plug valve 1 and the fourth plug valve 13; the second tee joint 12 comprises an inlet and two outlets, and the two outlets of the second tee joint 12 are respectively connected with the fourth plug valve 13 and the first plug valve 1. In the working process, the outlet of the third tee joint 14 is connected with the wellhead, the fourth plug valve 13 is always in an open state, and the inlet of the second tee joint 12 is always in a pressure pumping state. During filling, the second plug valve 3 is opened, the first plug valve 1 and the third plug valve 4 are closed, filling is carried out from the filling hopper 11, filled materials pass through the second plug valve 3 and then enter the storage pipe 6, and in the process, because the fourth plug valve 13 is in an open state, the pressure of pumping can act on a wellhead through the fourth plug valve 13; after the material storage pipe 6 is filled with the materials, the second plug valve 3 is closed, the first plug valve 1 and the third plug valve 4 are opened, and the materials in the material storage pipe 6 are injected into the well from the outlet of the third tee joint 14 through the third plug valve 4 to be blocked; after the filled materials are pumped, the first plug valve 1 and the third plug valve 4 are closed, pressure relief is carried out through the pressure relief cock 5 on the first tee joint 2, preparation is made for next filling, and circulation is carried out for multiple times until plugging is successful. Under the arrangement, the pressure of the pump injection is always applied to the well, so that the effect of the pump injection is effectively enhanced.

According to the utility model discloses, be provided with base 21 in the bottom of second tee bend 12 and third tee bend 14. The base 21 is used for supporting the utility model.

In a preferred embodiment, the rated working pressure of the plug valve, the tee joint and the pipeline for connection used in the utility model is 105MPa, and the drift diameter is 52mm. The bypass diameter of the oil pipe head is the same as that of a conventional oil pipe head, and the oil pipe head can be assembled by using parts with the existing specifications and is simple and convenient.

According to a preferred embodiment of the present invention, a fourth tee 15 is disposed at the inlet of the second tee 12, the fourth tee 15 includes two inlets and one outlet, the outlet of the fourth tee is connected to the second tee 12, a fifth plug valve 16 is connected to one of the inlets of the fourth tee 15, and another inlet of the fourth tee 15 is a pump injection port 17. In this arrangement, the inlet of the fifth stopcock 16 can be used as a spare pump inlet.

In a preferred embodiment, the central axis of the pump spout 17 is at an angle of 45 ° to the central axis of the inlet of the fourth tee 15 to which the fifth stopcock 16 is connected. Through this kind of setting, can guarantee under the firm condition of structure, make pump stop 17 more smooth and easy when filling pressure to the fourth tee 15 in the pump.

In a preferred embodiment, the inlet of the third tee 14 connected to the third stopcock 4 is angled at 45 ° to the central axis of the other inlet of the third tee 14. Through this arrangement, the process that the filler flows through the third tee 14 can be smoother while ensuring a firm structure.

According to the utility model discloses, the import of connecting fifth plug valve 16 of fourth tee bend 15 coincides with the central axis of its export. The multiple groups of the leaking stoppage device 100 can be used in series through the fifth plug valve 16, that is, the outlet of the upstream third tee 14 is connected with the inlet of the downstream fifth plug valve 16. In the process that the plurality of groups of leaking stoppage devices 100 are connected in series for use, the fifth plug valve 16 between the adjacent two groups of leaking stoppage devices 100 is in an open state, and the fifth plug valve 16 at the most upstream is closed. Through the arrangement, the multiple groups of leaking stoppage device 100 for pumping and injecting can work simultaneously and do not interfere with each other, and the leaking stoppage speed is accelerated. In this connection state, it is only necessary to apply pumping pressure to the pumping port 17 of the pumping and plugging device 100 at the most upstream pumping well port, and the remaining pumping ports 17 are plugged. It will be readily appreciated that the operation of each set of the lost circulation devices 100 is similar to that described above and will not be described further herein.

According to the utility model provides a leaking stoppage device is annotated to thorn hourglass mouth pump 100 is safe, practical, can restrain effectively the thorn hourglass, for the kill-job provides the condition, avoids the blowout accident to further worsen, satisfies the current hidden danger and reforms the actual demand that changes.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and should not be construed as limiting the present invention in any way. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a thorn leaks wellhead pump and annotates plugging device which characterized in that includes:

a first tee (2), the first tee (2) comprising two inlets and one outlet;

one end of the storage pipe (6) is connected with an outlet of the first tee joint, the other end of the storage pipe (6) is connected with a third plug valve (4), and the third plug valve (4) is used for being communicated with a wellhead;

the pressure relief cock (5) is arranged on the first tee joint (2);

a second plug valve (3) arranged on one inlet of the first tee joint (2), wherein the second plug valve (3) is used for receiving a filler;

and a first plug valve (1) arranged on the other inlet of the first tee joint (2).

2. A lost circulation device for a lost circulation wellhead pump according to claim 1, characterized in that a filler hopper (11) is provided at the inlet of the second stopcock (3).

3. A lost circulation device for lost circulation pumps according to claim 2, characterized in that it further comprises a second tee (12), a fourth cock (13) and a third tee (14), said second tee (12) comprises an inlet and two outlets, said third tee (14) comprises two inlets and one outlet, one outlet of said second tee (12) is connected to said first cock (1), one inlet of said third tee (14) is connected to said third cock (4), said fourth cock (13) is arranged between another outlet of said second tee (12) and another inlet of said third tee (14).

4. A leaking stoppage device for pump injection of a leaking wellhead as claimed in claim 3, characterized in that it further comprises a fourth tee (15) and a fifth stopcock (16), said fourth tee (15) comprises two inlets and one outlet, said outlet of said fourth tee (15) is connected to said inlet of said second tee (12), said fifth stopcock (16) is connected to one of said inlets of said fourth tee (15), and another inlet of said fourth tee (15) is said pump injection port (17).

5. A leaking stoppage device for pump injection of a leaking wellhead as claimed in claim 4, characterized in that it further comprises a base (21), said base (21) being provided at the bottom of said second tee (12) and said third tee (14).

6. A leaking stoppage device for pump injection for a stabbing wellhead as claimed in claim 5, wherein the inlet of the fourth tee (15) connected with the fifth stopcock (16) coincides with the central axis of the outlet thereof.

7. A lost circulation device for a barbed well head pump injection according to claim 6, wherein the central axis of the pump injection port (17) and the central axis of the inlet of the fourth tee (15) connected to the fifth stopcock (16) form an angle of 45 °.

8. A leaking stoppage device for pump injection for a stabbing wellhead as claimed in claim 7, wherein the angle between the central axes of the inlet of the third tee (14) connected to the third stopcock (4) and the other inlet of the third tee (14) is 45 °.

9. A leaking stoppage device for pump injection of a leaking wellhead as claimed in claim 8, characterized in that a pressure gauge (31) is provided on said first tee (2).

10. A leaking stoppage device for pump injection of a stabbing wellhead as claimed in any one of claims 3 to 9, wherein the effective length of the storage pipe (6) is 1.2m, the volume is 4L, and the drift diameter of the outlet of the third tee (14) is 52mm.