CN219548840U

CN219548840U - Bypass valve capable of being opened and closed for multiple times

Info

Publication number: CN219548840U
Application number: CN202320351078.2U
Authority: CN
Inventors: 劳纯宇; 谢光平
Original assignee: Hainan Xinchuan Engineering Technology Co ltd
Current assignee: Hainan Xinchuan Engineering Technology Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-08-18
Anticipated expiration: 2033-03-01

Abstract

The utility model discloses a bypass valve capable of being opened and closed for multiple times, which comprises a bypass system, a ball receiving system and a reduction system, wherein the ball receiving system is arranged on the bypass system through threaded connection, the reduction system is arranged in the bypass system in a sliding manner, the bypass system comprises a limit ball seat and the upper part of the bypass valve, the ball receiving system is arranged on the upper part of the bypass valve in a threaded connection manner, the step ball seat is arranged in the upper part of the bypass valve, and an outer bypass hole is formed in the side wall of the upper part of the bypass valve. The utility model relates to the technical field of petroleum well repair and underground operation, in particular to a bypass valve capable of being opened and closed for multiple times, which can realize high-concentration and large-particle plugging material and cement squeezing plugging construction, circulation, well flushing and other constructions without taking out the well when lost circulation occurs in the well drilling process.

Description

Bypass valve capable of being opened and closed for multiple times

Technical Field

The utility model relates to the technical field of petroleum well repair and underground operation, in particular to a bypass valve capable of being opened and closed repeatedly.

Background

When special operation is performed in well drilling and completion operation, the drilling tool is often required to be frequently started and restarted due to the influence of factors such as downhole instruments, screws, drill bit water holes and the like. If the plugging construction is performed, the choices of the particle size, the slurry concentration and the like of the plugging material are limited, and the plugging effect is seriously influenced; when the seam hole is drilled and a leakage layer is developed, the drilling tool is required to be started and replaced, the drill bit water hole is removed, and the like, so that the leakage is blocked, and after the leakage is successful, the normal drilling tool is started and replaced, and the drilling is resumed; particularly, in a multi-leaking-layer well section, the tripping operation is frequent, the leaking stoppage operation time is long, and the risks of underground complex, accidents, well control and the like are increased.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the bypass valve can be opened and closed for multiple times, and can realize high-concentration and large-particle plugging material and cement squeezing plugging construction, circulation, well flushing and other constructions without taking out the well when lost circulation occurs in the well drilling process.

The technical scheme adopted by the utility model is as follows: the utility model provides a bypass valve capable of being opened and closed for multiple times, which comprises a bypass system, a ball receiving system and a reduction system, wherein the ball receiving system is arranged on the bypass system through threaded connection, the reduction system is arranged in the bypass system in a sliding manner, the bypass system comprises a limit ball seat and the upper part of the bypass valve, the ball receiving system is arranged on the upper part of the bypass valve in a threaded connection manner, the limit ball seat is arranged in the upper part of the bypass valve, and an outer bypass hole is formed in the side wall of the upper part of the bypass valve.

Preferably, the reduction system comprises a sliding sleeve mechanism, a ball seat, an inner bypass hole, an opening ball and a closing ball, wherein the sliding sleeve mechanism is slidably arranged on the upper portion of the bypass valve, the ball seat is arranged in the sliding sleeve mechanism, the limiting ball seat is arranged below the sliding sleeve mechanism, the inner bypass hole is arranged on the sliding sleeve mechanism, the opening ball is arranged in the sliding sleeve mechanism and is clamped on the ball seat, and the closing ball is arranged in the sliding sleeve mechanism and is clamped on the inner bypass hole.

Further, the ball receiving system comprises a bypass valve lower portion, a ball receiving basket and a step ball seat, wherein the lower portion of the bypass valve is in threaded connection with the upper portion of the bypass valve, the ball receiving basket is arranged in the lower portion of the bypass valve and is communicated with the ball seat, the ball receiving basket and the ball seat are coaxially arranged, and the step ball seat is arranged in the lower portion of the bypass valve and below the ball receiving basket.

Further, the outer bypass holes are provided with a plurality of groups.

In addition, the diameter of the opening ball is larger than that of the ball seat, and the diameter of the closing ball is smaller than that of the ball seat.

Preferably, a sealing ring is arranged at the outer bypass hole of the upper part of the bypass valve and the sliding sleeve mechanism.

Furthermore, the lower end of the ball receiving basket is propped against the upper plane of the step ball seat.

To achieve the reduction effect, the sliding sleeve mechanism is preferably provided with a spring.

The beneficial effects obtained by the utility model by adopting the structure are as follows: the bypass valve can be opened and closed for multiple times, and can realize high-concentration and large-particle plugging material and cement squeezing plugging construction, circulation, well flushing and other constructions for multiple times without taking out the drill when lost circulation occurs in the drilling process.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a bypass valve capable of being opened and closed multiple times;

FIG. 2 is an exploded view of a multiple-opening/closing bypass valve according to the present utility model;

FIG. 3 is a schematic view of a bypass valve capable of being opened and closed multiple times in an initial state according to the present utility model;

FIG. 4 is a schematic view of a bypass valve capable of being opened and closed multiple times in a ball throwing state;

FIG. 5 is a schematic view of a bypass valve capable of being opened and closed multiple times in a ball throwing state;

fig. 6 is a schematic structural diagram of a bypass valve capable of being opened and closed multiple times during the process of recovering the initial state according to the present utility model.

Wherein, 1, a bypass system, 2, a ball receiving system, 3, a reduction system, 4, a limit ball seat, 5, the upper part of a bypass valve, 6, an outer bypass hole, 7, a sliding sleeve mechanism, 8, ball seat, 9, interior bypass hole, 10, open ball, 11, close ball, 12, bypass valve lower part, 13, ball receiving basket, 14, step ball seat, 15, sealing washer.

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

Detailed Description

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

As shown in fig. 1, 2, 3, 4, 5 and 6, the bypass valve capable of being opened and closed repeatedly provided by the utility model comprises a bypass system 1, a ball receiving system 2 and a reduction system 3, wherein the ball receiving system 2 is arranged on the bypass system 1 through threaded connection, the reduction system 3 is slidably arranged in the bypass system 1, the bypass system 1 comprises a limit ball seat 4 and a bypass valve upper part 5, the ball receiving system 2 is arranged on the bypass valve upper part 5 through threaded connection, the limit ball seat 4 is arranged in the bypass valve upper part 5, and an outer bypass hole 6 is arranged on the side wall of the bypass valve upper part 5.

As shown in fig. 1, 2, 3, 4, 5 and 6, the reduction system 3 includes a sliding sleeve mechanism 7, a ball seat 8, an inner bypass hole 9, an opening ball 10 and a closing ball 11, the sliding sleeve mechanism 7 is slidably disposed in the bypass valve upper portion 5, the ball seat 8 is disposed in the sliding sleeve mechanism 7, the limit ball seat 4 is disposed below the sliding sleeve mechanism 7, the inner bypass hole 9 is disposed on the sliding sleeve mechanism 7, the opening ball 10 is disposed in the sliding sleeve mechanism 7 and is clamped on the ball seat 8, and the closing ball 11 is disposed in the sliding sleeve mechanism 7 and is clamped on the inner bypass hole 9.

As shown in fig. 1, 2, 3, 4, 5 and 6, the ball receiving system 2 includes a bypass valve lower portion 12, a ball receiving basket 13 and a stepped ball seat 14, the bypass valve lower portion 12 is in threaded connection with the bypass valve upper portion 5, the ball receiving basket 13 is disposed in the bypass valve lower portion 12 and penetrates through the ball seat 8, the ball receiving basket 13 is coaxially disposed with the ball seat 8, and the stepped ball seat 14 is disposed in the bypass valve lower portion 12 and below the ball receiving basket 13.

As shown in fig. 1, 2, 3, 4, 5 and 6, the outer bypass holes 6 are provided with several groups.

As shown in fig. 1, 2, 3, 4, 5 and 6, the diameter of the opening ball 10 is larger than the diameter of the ball seat 8, and the diameter of the closing ball 11 is smaller than the diameter of the ball seat 8.

As shown in fig. 1, 2, 3, 4, 5 and 6, the bypass valve upper part 5 and the slide bush mechanism 7 are provided with a sealing ring 15 at the outer bypass hole 6.

As shown in fig. 1, 2, 3, 4, 5 and 6, the lower end of the ball receiving basket 13 abuts on the upper plane of the stepped ball seat 14.

As shown in fig. 1, 2, 3, 4, 5 and 6, the slide mechanism 7 is preferably spring-loaded.

When the device is specifically used, a user installs the ball receiving system 2 on the bypass system 1 and installs the bypass system 1 and the ball receiving system 2 on a drill rod or other tools, when the drill rod or other tools work and encounter lost circulation, firstly, drilling to a safe well section, then throwing an opening ball 10 into the device, at the moment, the opening ball 10 falls on a ball seat 8 in the upper part 5 of the bypass valve, blocking the ball seat 8, then the user uses a low pump to press the device, a sliding sleeve mechanism 7 between the differential pressure of 0.7-1.4 megapascals descends in the upper part 5 of the bypass valve, so that an inner bypass hole 9 is communicated with an outer bypass hole 6, and the effect of communicating inner and outer circulation channels is achieved, then the user can perform the plugging operation of plugging materials and cement squeezing, at the moment, the plugging slurry is pumped into the device, the device is conveyed into the communicated inner bypass hole 9 and the outer bypass hole 6, the device is discharged from the outer bypass hole 6, the device enters a plugging layer to perform plugging, after a period of time, the sliding sleeve mechanism 7 is not in the device is in a way of stopping, the sliding sleeve mechanism 7 is in the upper part, the reducing system 3 is in the reducing effect, the differential pressure is in the side channel is separated, and the inner and outer bypass hole 6 is in a mode, or the side channel is in a U-shaped, the problem is reduced; the circulation channels of the inner bypass hole 9 and the outer bypass hole 6 are required to be opened again, the pump is slowly started to operate again, and the aim of repeated operation can be fulfilled as required; after the plugging construction is completed, when the well drilling needs to be restored, two closing balls 11 are thrown into the device, the closing balls 11 slide on the upper part 5 of the bypass valve, the inner bypass hole 9 is plugged under the action of the flow velocity, then the low pumping is started to build pressure, when the pressure difference reaches a design value, the opening balls 10 are sheared and fall into the ball receiving basket 13 together with the closing balls 11, the upper part 5 of the bypass valve and the lower part 12 of the bypass valve are communicated again without pressure difference, and the sliding sleeve mechanism 7 is reset to an initial state; in addition, the length of the ball receiving system 2 can be specially designed to meet the operation requirement of opening and closing the bypass valve for more times according to the requirement, so that the whole use flow of the bypass valve capable of being opened and closed for more times is realized.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. A bypass valve capable of being opened and closed for a plurality of times, which is characterized in that: including bypass system, ball receiving system and reduction system, ball receiving system locates on the bypass system through threaded connection, reduction system slides and locates in the bypass system, the bypass system includes spacing ball seat and bypass valve upper portion, ball receiving system threaded connection locates bypass valve upper portion, spacing ball seat locates in the bypass valve upper portion, be equipped with outer bypass hole on the lateral wall on bypass valve upper portion.

2. A multiple-switchable bypass valve according to claim 1, wherein: the reduction system comprises a sliding sleeve mechanism, a ball seat, an inner bypass hole, an opening ball and a closing ball, wherein the sliding sleeve mechanism is slidably arranged on the upper portion of the bypass valve, the ball seat is arranged in the sliding sleeve mechanism, the limiting ball seat is arranged below the sliding sleeve mechanism, the inner bypass hole is arranged on the sliding sleeve mechanism, the opening ball is arranged in the sliding sleeve mechanism and is clamped on the ball seat, and the closing ball is arranged in the sliding sleeve mechanism and is clamped on the inner bypass hole.

3. A multiple-switchable bypass valve according to claim 2, wherein: the ball receiving system comprises a bypass valve lower part, a ball receiving basket and a step ball seat, wherein the lower part of the bypass valve is in threaded connection with the upper part of the bypass valve, the ball receiving basket is arranged in the lower part of the bypass valve and is communicated with the ball seat, the ball receiving basket and the ball seat are coaxially arranged, and the step ball seat is arranged in the lower part of the bypass valve and below the ball receiving basket.

4. A multiple switchable bypass valve according to claim 3, wherein: the outer bypass holes are provided with a plurality of groups.

5. The multiple-switchable bypass valve according to claim 4 wherein: the diameter of the opening ball is larger than that of the ball seat, and the diameter of the closing ball is smaller than that of the ball seat.

6. A multiple switchable bypass valve according to claim 5 wherein: and a sealing ring is arranged at the outer bypass hole of the bypass valve upper part and the sliding sleeve mechanism.

7. The multiple-switchable bypass valve according to claim 6 wherein: the lower end of the ball receiving basket is propped against the upper plane of the step ball seat.

8. The multiple-switchable bypass valve according to claim 7 wherein: the sliding sleeve mechanism is preferably arranged by a spring.