阅读说明：本技术 一种注入水泥辅助装置 (Cement injection auxiliary device ) 是由 刘东章 刘博文 程丙方 胡孝林 刘金岭 邹晓楠 胡树国 丁香春 罗泽民 张晓国 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种注入水泥辅助装置,属于钻探工具技术领域,以解决顶驱注入水泥会对所经过管路部件的内壁冲刷和腐蚀,造成过早损坏,以及水泥作业完成后,清理不及时或不彻底,将会造成水泥的沉积,管路的堵塞,给安全生产埋下了严重的隐患的问题,包括装置本体,装置本体上设置有两组限位片,装置本体上分别套设有上盘根盒与下盘根盒,上盘根盒与下盘根盒内均开设有限位槽,限位片卡设在限位槽内,上盘根盒上螺纹连接有旋转体,旋转体与下盘根盒为螺纹连接,旋转体上焊接设置有进口管,装置本体上开设有槽口,旋转体内设置有腔体,腔体与槽口及进口管相连通。(The invention discloses an auxiliary device for injecting cement, which belongs to the technical field of drilling tools and aims to solve the problem that cement injected by top drive erodes and corrodes the inner wall of a pipeline part passing through the auxiliary device to cause premature damage, and after the cement operation was accomplished, the clearance was untimely or not thorough, will cause the deposit of cement, the jam of pipeline, buried the problem of serious hidden danger for safety in production, including the device body, be provided with two sets of spacing pieces on the device body, it is equipped with packing box and lower packing box to overlap respectively on the device body, the spacing groove has all been seted up in packing box and the lower packing box, spacing piece card is established in the spacing groove, threaded connection has the rotator on the last packing box, rotator and lower packing box are threaded connection, the welding is provided with the import pipe on the rotator, the notch has been seted up on the device body, be provided with the cavity in the rotator, the cavity is linked together with notch and import pipe.)

1. An auxiliary device for injecting cement is characterized in that: including device body (1), be provided with two sets of spacing pieces (17) on device body (1), it is equipped with packing box (2) and lower packing box (9) to overlap respectively on device body (1), go up packing box (2) with spacing groove (18) have all been seted up in packing box (9) down, spacing piece (17) card is established in spacing groove (18), it has rotator (3) to go up threaded connection on packing box (2), rotator (3) with packing box (9) are threaded connection down, the welding is provided with import pipe (5) on rotator (3), notch (8) have been seted up on device body (1), be provided with cavity (13) in rotator (3), cavity (13) with notch (8) reach import pipe (5) are linked together.

2. A supplementary device for injecting cement according to claim 1, wherein: a first one-way valve (15) is arranged in the device body (1), and a second one-way valve (6) is arranged in the inlet pipe (5).

3. A supplementary device for injecting cement according to claim 1, wherein: be provided with first sealed pad (12) and the sealed pad (14) of second in rotator (3) respectively, first sealed pad (12) with the sealed pad (14) of second is all established device body (1) is last.

4. A supplementary device for injecting cement according to claim 1, wherein: a plurality of groups of bearing steel balls (11) are arranged in the two groups of limiting grooves (18), and the plurality of groups of bearing steel balls (11) are distributed in the limiting grooves (18) in an array manner.

5. A supplementary device for injecting cement according to claim 1, wherein: the inlet pipe (5) is welded with a grouting joint (7), and the grouting joint (7) is provided with a connecting flange (19).

6. A supplementary device for injecting cement according to claim 1, wherein: the inlet pipe (5) is welded with two groups of rib plates (4), and the two groups of rib plates (4) are welded on the rotating body (3).

7. A supplementary device for injecting cement according to claim 1, wherein: the device is characterized in that an upper-end internal thread (16) and a lower-end male buckle connector (10) are respectively arranged at two ends of the device body (1).

Technical Field

The invention belongs to the technical field of drilling tools, and particularly relates to an auxiliary device for injecting cement.

Background

In the oil drilling operation, cementing operation is frequently encountered, for example, the well abandoning operation after drilling a well, serious loss in the drilling process, plugging of a lower open hole section, re-windowing and other operations are all used for cementing operation, the currently adopted mode is to inject cement into the well through top drive, enter the inside of a drill rod through a flushing pipe, a central pipe, a protective joint and the like, and then inject the cement into the well, and the flow has a plurality of defects, namely, the inner wall of a pipeline part is flushed and corroded to cause premature damage; secondly, after the cement operation is finished, the cleaning is not timely or thorough, the deposition of cement and the blockage of pipelines can be caused, serious hidden dangers are buried for safety production, and in order to essentially eliminate the defects from the source, the design and processing of the auxiliary device for pumping cement are imperative.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an auxiliary device for injecting cement, which aims to solve the technical problems that in the prior art, the cement injected by top drive erodes and corrodes the inner wall of a pipeline part passing through the auxiliary device, so that the cement is prematurely damaged, and after the cement operation is finished, the cement is not cleaned timely or thoroughly, so that the cement is deposited, the pipeline is blocked, and serious hidden troubles are buried in safety production.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an pour into cement auxiliary device, includes the device body, be provided with two sets of spacing pieces on the device body, the cover is equipped with packing box and lower packing box on the device body respectively, go up the packing box with the spacing groove has all been seted up in the packing box down, spacing piece card is established the spacing inslot, threaded connection has the rotator on going up the packing box, the rotator with lower packing box is threaded connection, the welding is provided with the import pipe on the rotator, the notch has been seted up on the device body, be provided with the cavity in the rotator, the cavity with the notch reaches the import pipe is linked together.

As a preferable technical scheme of the invention, a first one-way valve is arranged in the device body, and a second one-way valve is arranged in the inlet pipe.

As a preferred technical scheme of the present invention, a first sealing gasket and a second sealing gasket are respectively disposed in the rotating body, and both the first sealing gasket and the second sealing gasket are sleeved on the device body.

As a preferred technical scheme of the invention, a plurality of groups of bearing steel balls are arranged in the two groups of limiting grooves, and the plurality of groups of bearing steel balls are distributed in the limiting grooves in an array manner.

As a preferred technical scheme, a grouting joint is welded on the inlet pipe, and a connecting flange is arranged on the grouting joint.

As a preferable technical scheme of the invention, two groups of rib plates are welded on the inlet pipe, and the two groups of rib plates are welded on the rotating body.

As a preferred technical scheme of the invention, the two ends of the device body are respectively provided with an upper-end internal thread and a lower-end male buckle connector.

The invention provides an auxiliary device for injecting cement, which has the following beneficial effects:

according to the invention, cement is injected into the device body through the inlet pipe, a series of defects caused by top drive of cement are eliminated, the abrasion to the pipe wall is reduced, the deposition of cement slurry is avoided, the rotation of the drilling tool is ensured without top drive of cement slurry in cementing operation, the safe and efficient operation of production is ensured, and the service life of equipment is ensured.

Drawings

FIG. 1 is a perspective view of an auxiliary device for injecting cement of the present invention;

FIG. 2 is an exploded view of a cementing aid of the present invention;

FIG. 3 is a front view of a cementing aid of the present invention;

fig. 4 is a cross-sectional view taken at a-a in fig. 3.

In the figure: 1. a device body; 2. installing a packing box; 3. a rotating body; 4. a rib plate; 5. an inlet pipe; 6. a first check valve; 7. grouting joints; 8. a notch; 9. a lower packing box; 10. a lower male buckle connector; 11. bearing steel balls; 12. a first gasket; 13. a cavity; 14. a second gasket; 15. a second one-way valve; 16. an upper end internal thread; 17. a limiting sheet; 18. a limiting groove; 19. and connecting the flanges.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides a technical solution: an auxiliary device for injecting cement comprises a device body 1, two groups of limiting pieces 17 are arranged on the device body 1, an upper packing box 2 and a lower packing box 9 are respectively sleeved on the device body 1, limiting grooves 18 are respectively formed in the upper packing box 2 and the lower packing box 9, the limiting pieces 17 are clamped in the limiting grooves 18, a rotating body 3 is connected to the upper packing box 2 in a threaded manner, the rotating body 3 is connected to the lower packing box 9 in a threaded manner, an inlet pipe 5 is welded on the rotating body 3, a plurality of notches are formed in the device body 1, a cavity 13 is arranged in the rotating body 3, the cavity 13 is communicated with the notches 8 and the inlet pipe 5, the rotating body 3 and the device body 1 move relatively, when the connection of the device body 1 with a top drive and a drill rod is completed, the top drive does not rotate, the rotating body 3 can rotate around the device body 1, so as to adjust the fixed position and direction, when the top drive rotates, under the drive that drives on the top, device body 1 slowly rotates, and rotator 3 can remain fixed unchangeable, injects the cement into device body 1 from cavity 13 and notch 8 through import pipe 5 to need not to drive the injection cement from the top.

The device comprises a device body 1, an inlet pipe 5, a first check valve 15, a second check valve 6, a first check valve and a second check valve, wherein the first check valve 15 is arranged in the device body 1, and the backflow of cement and cleaning water is avoided, so that the cement and cleaning equipment can be injected more conveniently and stably; be provided with first sealed 12 and the sealed 14 of second of filling up in the rotator 3 respectively, first sealed 12 and the sealed 14 cover of second of filling up are all established on device body 1, have effectively avoided cement to flow out from the gap between rotator 3 and the device body 1.

The two sets of limiting grooves 18 are internally provided with a plurality of sets of bearing steel balls 11, the plurality of sets of bearing steel balls 11 are distributed in the limiting grooves 18 in an array mode, friction between the limiting sheets 17 and the limiting grooves 18 is reduced, so that the rotating body 3 can be controlled to rotate on the device body 1 more conveniently, the service life of the device is prolonged, the inlet pipe 5 is provided with two sets of rib plates 4 in a welding mode, and the two sets of rib plates 4 are arranged on the rotating body 3 in a welding mode, so that the inlet pipe 5 is installed on the device body 1 more stably.

The slurry pump is characterized in that a grouting connector 7 is welded on the inlet pipe 5, a connecting flange 19 is arranged on the grouting connector 7, so that a slurry pump can be connected to the inlet pipe 5 more conveniently, upper-end internal threads 16 and lower-end male buckle connectors 10 are arranged at two ends of the device body 1 respectively, and two ends of the slurry pump can be conveniently installed on a top drive and a drilling tool.

The specific use mode and function of the embodiment are as follows:

when the invention is used, firstly, the invention is conveniently arranged between a top drive and a drilling tool through an upper internal thread 16 and a lower male buckle joint 10, a plurality of groups of bearing steel balls 11 are arranged in two groups of limiting grooves 18, the friction between a limiting sheet 17 and the limiting grooves 18 is reduced, so that the rotating body 3 and the device body 1 can carry out relative rotation movement, when the top drive does not run, the rotating body 3 can rotate around the device body 1, thereby adjusting the fixed position and direction, when the top drive rotates, the device body 1 drives the drilling tool to rotate under the drive of the top drive, the rotating body 3 can be kept fixed, cement is injected into the device body 1 from a cavity 13 and a notch 8 through an inlet pipe 5, thereby the cement is not required to be injected from the top drive, the inlet pipe 5 is more stably arranged on the device body 1 through the support of two groups of ribbed plates 4, and through the arrangement of a first sealing gasket 12 and a second sealing gasket 14, the cement is prevented from flowing out from the gap between the rotary body 3 and the apparatus body 1.

After accomplishing the operation, wash in importing pipe 5 and device body 1 top injection device body 1 respectively through with the clear water, wash thoroughly afterwards, first check valve 6 and 15 self-closing of second check valve, demolish after accomplishing the operation, thereby eliminated cement and driven produced a series of drawbacks through the top, the wearing and tearing to the pipe wall have been reduced, the deposit of grout has been avoided, guaranteed to beat the cement operation and need not the grout and drive and realize the rotation of drilling tool through the top, the safe high-efficient operation of production has been ensured, the life of equipment has been ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.