CN210829141U - Fast switching and shunting device for fine pressure control drilling - Google Patents
Fast switching and shunting device for fine pressure control drilling Download PDFInfo
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- CN210829141U CN210829141U CN201921129902.XU CN201921129902U CN210829141U CN 210829141 U CN210829141 U CN 210829141U CN 201921129902 U CN201921129902 U CN 201921129902U CN 210829141 U CN210829141 U CN 210829141U
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Abstract
The utility model discloses a fast switch-over diverging device for meticulous accuse pressure drilling, press the pipeline including rotatory preventer, flat valve and accuse, still include the diverging device body, the diverging device body has two second openings of first opening and mutual symmetry, and the pipeline is pressed in the accuse and installs on first opening, and rotatory preventer and flat valve that surges install respectively on two second openings. The utility model discloses an add the diverging device body between rotatory preventer and the wafer valve that surges, realized meticulous accuse pressure drilling in-process meticulous accuse pressure drilling and the fast switch-over of normal drilling state for the drilling fluid circulation passageway is more safe unobstructed.
Description
Technical Field
The utility model relates to a drilling equipment technical field is pressed in meticulous accuse, and more specifically the utility model relates to a fast switch-over diverging device for well drilling is pressed in meticulous accuse that says so.
Background
At present, the fine pressure control drilling technology is widely applied to various domestic oil fields, a pressure control pipeline is connected to a wellhead in the fine pressure control drilling process, namely, an outlet of a hydraulic flat valve, and a common drilling fluid circulation channel of a drilling team is occupied after the fine pressure control pipeline is connected and pressure testing is qualified, wherein the common drilling fluid circulation channel is as follows: annular space → rotary blowout preventer → hydraulic plate valve → fine pressure control pipeline → fine pressure control throttling control pry → mud tank.
The drilling fluid has the following two circulation modes when the fine pressure control drilling is stopped due to the actual working condition of a drilling site in the fine pressure control drilling process:
the first drilling fluid circulation mode is as follows: annulus → rotary blowout preventer → hydraulic plate valve → fine pressure control flow → mud tank;
and a second drilling fluid circulation mode: annulus → drilling cross → choke manifold group → liquid gas separator → mud tank.
However, the first drilling fluid circulation mode has the following problems:
① the large-particle solid matter in the drilling fluid is easy to block the fine pressure control throttle manifold and influence the fine pressure control drilling construction of the next stage, ② occupies the fine pressure control pipeline for a long time, has larger loss to the fine pressure control throttle control pipeline and can increase the cost in the normal drilling period, and ③ the drilling fluid circulation channel is reduced in the normal drilling period and influences the drilling parameters such as pumping pressure in the drilling process;
the second drilling fluid circulation mode has the following problems:
① drilling crew choke manifold belongs to well control equipment, which has great well control safety risk when being occupied for a long time, ② drilling fluid large-particle solid-phase matter is easy to block the drilling crew choke manifold to influence the normal drilling construction of the next stage, ③ influences the drilling parameters such as pumping pressure in the normal drilling process.
Therefore, it is an urgent need to solve the problem of providing a fast switching and shunting device for fine pressure control drilling, so that a drilling fluid circulation channel is safer and smoother.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a fast switch-over diverging device for meticulous accuse pressure well drilling aims at solving one of the above-mentioned technical problem among the prior art to a certain extent at least.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fast switch over diverging device for meticulous accuse pressure drilling, includes rotatory preventer, the wafer valve that surges and accuse pressure pipeline, still includes the diverging device body, the diverging device body has first opening and two second openings of mutual symmetry, accuse pressure pipeline is installed on the first opening, rotatory preventer with the wafer valve that surges is installed respectively two on the second opening.
Further, the flow dividing device body comprises a three-way pipe fitting and a flat valve; the three-way pipe fitting is provided with an inlet and two outlets, and a straight-through channel is formed inside the flat valve; the inlet is connected with one end of the straight-through channel through a flange, and the other end of the straight-through channel is connected with the pressure control pipeline through a flange group; and the two outlets are respectively connected with the rotary blowout preventer and the hydraulic flat valve through flanges.
Further, the flange group includes flange pad, first flange and second flange, the flange pad sets up first flange with between the second flange, first flange with the second flange passes through the bolt-up and is in the same place.
Furthermore, the three-way pipe fitting is made of carbon steel.
Through taking above scheme, the beneficial effects of the utility model are that:
the shunt device body is additionally arranged between the rotary blowout preventer and the hydraulic flat valve, so that the rapid switching between the states of fine pressure control drilling and normal drilling in the fine pressure control drilling process is realized, and a drilling fluid circulation channel is safer and smoother.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the shunt device body according to the present invention.
In the figure: 1-a first opening, 2-a second opening, 3-a tee pipe fitting, 4-a flat valve and 5-a flange set.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, 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 implicitly indicating the number of technical features indicated. 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 stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in figure 1, the embodiment of the utility model discloses a fast switch-over diverging device for meticulous accuse pressure drilling, including rotatory preventer, the wafer valve that surges and accuse pressure pipeline, still include the diverging device body, the diverging device body has two second openings 2 of first opening 1 and mutual symmetry, and accuse pressure pipeline installs on first opening 1, and rotatory preventer and the wafer valve that surges install respectively on two second openings 2. The utility model discloses an add the diverging device body between rotatory preventer and the wafer valve that surges, realized meticulous accuse pressure drilling in-process meticulous accuse pressure drilling and the fast switch-over of normal drilling state for the drilling fluid circulation passageway is more safe unobstructed.
Specifically, the flow dividing device body comprises a three-way pipe fitting 3 and a flat valve 4; the tee pipe fitting 3 is provided with an inlet and two outlets, and a straight-through channel is formed inside the flat valve 4; the inlet is connected with one end of the straight-through channel through a flange, and the other end of the straight-through channel is connected with a pressure control pipeline through a flange group; the two outlets are respectively connected with the rotary blowout preventer and the hydraulic flat valve through flanges.
Specifically, the flange group 5 includes a flange pad, a first flange and a second flange, the flange pad is disposed between the first flange and the second flange, and the first flange and the second flange are fastened together by bolts.
Specifically, the tee pipe 3 is made of carbon steel.
The utility model discloses meticulous accuse is pressed well drilling fluid circulation channel and is: annulus → rotary blowout preventer → diverter body → fine pressure control and throttling control pry → mud tank;
the switching to the normal drilling fluid circulation channel is as follows: annulus → rotary blowout preventer → diverter body → overhead tank → mud tank.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a fast switch-over diverging device for meticulous accuse pressure drilling, includes rotatory preventer, the wafer valve that surges and accuse pressure pipeline, its characterized in that still includes the diverging device body, the diverging device body has first opening and two second openings of mutual symmetry, accuse pressure pipeline install on the first opening, rotatory preventer with the wafer valve that surges install respectively on two the second opening.
2. The fast-switching diverter device for fine-managed pressure drilling of claim 1, wherein said diverter body comprises a tee and a plate valve; the three-way pipe fitting is provided with an inlet and two outlets, and a straight-through channel is formed inside the flat valve; the inlet is connected with one end of the straight-through channel through a flange, and the other end of the straight-through channel is connected with the pressure control pipeline through a flange group; and the two outlets are respectively connected with the rotary blowout preventer and the hydraulic flat valve through flanges.
3. The fast-switching flow-dividing device for fine-managed pressure drilling of claim 2, wherein the flange set comprises a flange pad, a first flange and a second flange, the flange pad is disposed between the first flange and the second flange, and the first flange and the second flange are fastened together by bolts.
4. The fast switching diverter device for fine managed pressure drilling of claim 2, wherein the tee is carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921129902.XU CN210829141U (en) | 2019-07-18 | 2019-07-18 | Fast switching and shunting device for fine pressure control drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921129902.XU CN210829141U (en) | 2019-07-18 | 2019-07-18 | Fast switching and shunting device for fine pressure control drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829141U true CN210829141U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921129902.XU Active CN210829141U (en) | 2019-07-18 | 2019-07-18 | Fast switching and shunting device for fine pressure control drilling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331952A (en) * | 2019-07-18 | 2019-10-15 | 北京格瑞迪斯石油技术有限公司 | It is a kind of to be switched fast part flow arrangement for fine controlled pressure drilling |
| CN112343543A (en) * | 2020-10-10 | 2021-02-09 | 中国石油集团渤海钻探工程有限公司 | Electro-hydraulic flat valve for fine pressure control drilling |
-
2019
- 2019-07-18 CN CN201921129902.XU patent/CN210829141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331952A (en) * | 2019-07-18 | 2019-10-15 | 北京格瑞迪斯石油技术有限公司 | It is a kind of to be switched fast part flow arrangement for fine controlled pressure drilling |
| CN112343543A (en) * | 2020-10-10 | 2021-02-09 | 中国石油集团渤海钻探工程有限公司 | Electro-hydraulic flat valve for fine pressure control drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220711 Address after: No. 199, Huqiao Road, East Industrial District, Xindu District, Chengdu, Sichuan 610500 Patentee after: Sichuan gredis Petroleum Technology Co.,Ltd. Address before: Room 305, floor 3, No. 1 nanchun Road, cuigezhuang township government, Chaoyang District, Beijing 100103 Patentee before: Beijing Grand Oil Tech Co.,Ltd. |
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| TR01 | Transfer of patent right |