CN113863878A - Pressure regulating and controlling device for well mouth of drilling well - Google Patents
Pressure regulating and controlling device for well mouth of drilling well Download PDFInfo
- Publication number
- CN113863878A CN113863878A CN202111248885.3A CN202111248885A CN113863878A CN 113863878 A CN113863878 A CN 113863878A CN 202111248885 A CN202111248885 A CN 202111248885A CN 113863878 A CN113863878 A CN 113863878A
- Authority
- CN
- China
- Prior art keywords
- full
- outer shell
- drilling
- sealing
- radial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 8
- 230000001276 controlling effect Effects 0.000 title description 2
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000009977 dual effect Effects 0.000 abstract description 2
- 230000003019 stabilising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a well mouth pressure regulating device for a drilling well, which is arranged in a drilling circulating hydraulic system and comprises: the outer shell is arranged in a drilling well, and a through hole allowing a drill rod to penetrate through is formed in the outer shell; an upper full-sealing piece, a radial fixing piece, a bearing fixing piece and a lower full-sealing piece are sequentially arranged in the outer shell from top to bottom; the shell body is further provided with an upper circulating hydraulic interface and a lower circulating hydraulic interface, the upper circulating hydraulic interface is located between the upper full-sealing piece and the radial fixing piece, and the lower circulating hydraulic interface is located between the bearing fixing piece and the lower full-sealing piece. The adjustable and controllable pressure device for the drilling wellhead, provided by the invention, has the advantages that through the internal and external circulation dual system, the drilling fluid circulation system which does not stop the circulation of the drilling fluid and can also unload the drilling rod is provided, the pressure fluctuation during the circulation of the drilling fluid is eliminated, and the drilling accidents are effectively prevented.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a pressure regulating device for a drilling wellhead.
Background
With the development of the petroleum exploration and development technology in China, easily-exploited self-contained and large oil-gas fields are almost used up, so that the development is gradually carried out towards difficultly-exploited deep oil-gas resources. The problem of simultaneous drilling and blowout leakage exists in the difficult-to-exploit deep oil and gas resources, and especially in the process of connecting drill rods, the stability of pressure becomes a key factor.
Disclosure of Invention
The invention aims to provide a controllable pressure regulating device for a well mouth of a drilling well, which aims to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a well drilling well head can regulated and control pressure equipment device, sets up in well drilling circulation hydraulic system, includes:
the outer shell is arranged in a drilling well, and a through hole allowing a drill rod to penetrate through is formed in the outer shell;
an upper full-sealing piece, a radial fixing piece, a bearing fixing piece and a lower full-sealing piece are sequentially arranged in the outer shell from top to bottom;
the shell body is further provided with an upper circulating hydraulic interface and a lower circulating hydraulic interface, the upper circulating hydraulic interface is located between the upper full-sealing piece and the radial fixing piece, and the lower circulating hydraulic interface is located between the bearing fixing piece and the lower full-sealing piece.
As an improvement of the present invention, the upper full seal and the lower full seal are the same, and both include:
the first driving hydraulic cylinders are oppositely arranged on the same horizontal plane on the outer shell;
the two full-sealing half plates are respectively and fixedly connected with the first driving hydraulic cylinder and slide linearly along a sliding groove formed in the outer shell;
the inner end of the full-sealed half plate is provided with a through hole allowing a drill rod to pass through;
and the inner end of the full-sealing half plate is provided with a rubber ring which is in sealing contact with the drill rod.
As an improvement of the invention, the radial fastener comprises:
the two second driving hydraulic cylinders are oppositely arranged on the same horizontal plane on the outer shell;
the two radial stabilizing half plates are respectively and fixedly connected with the second driving hydraulic cylinder and slide linearly along a sliding groove formed in the outer shell;
the inner end of the radial stable half plate is provided with a through hole for allowing a drill rod to pass through.
As an improvement of the invention, the load bearing fixture comprises:
two third driving hydraulic cylinders are oppositely arranged on the same horizontal plane on the outer shell;
the two bearing half plates are respectively and fixedly connected with the third driving hydraulic cylinder and slide linearly along a sliding groove formed in the outer shell;
the inner end of the bearing half plate is provided with a through hole which allows a drill rod to pass through and is provided with a conical bearing inclined plane;
and a gap is reserved between the bearing half plate and the radial stabilizing half plate.
As an improvement of the present invention, the first driving hydraulic cylinder is vertically disposed on an outer wall of the outer housing, and the outer housing is provided with a sliding groove for allowing the full-sealing half plate to slide.
As an improvement of the invention, the rubber ring is of an annular structure and is arranged in the middle of the inner end face of the full-sealed half plate, and the inner end of the rubber ring extends out of the inner end face of the full-sealed half plate.
As an improvement of the invention, the two radial stabilizing half plates are spliced into a cuboid plate-shaped structure, and the thickness of the radial stabilizing half plate is larger than that of the upper full-sealing piece.
As an improvement of the present invention, the upper circulation hydraulic interface is located right above the lower circulation hydraulic interface.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is an exterior elevation view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
fig. 3 is a top view of the radial fastener of the present invention.
The components in the figure are:
1. the outer shell is provided with a plurality of grooves,
2. an upper full seal piece 21, a first driving hydraulic cylinder 22, a full seal half plate 23 and a rubber ring,
3. a radial fixing part 31, a second driving hydraulic cylinder 32, a radial stabilizing half plate,
4. a bearing fixing piece 41, a third driving hydraulic cylinder 42, a bearing half plate,
5. a lower full-sealing piece is arranged on the lower sealing piece,
6. an upper circulation hydraulic interface is arranged on the upper part of the hydraulic pump,
7. and a lower circulation hydraulic interface.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1, a pressure regulating device for a drilling wellhead is disposed in a drilling circulating hydraulic system, and includes:
the outer shell 1 is arranged in a drilling well, and a through hole allowing a drill rod to penetrate through is formed in the outer shell 1;
an upper full seal 2, a radial fixing piece 3, a bearing fixing piece 4 and a lower full seal 5 are sequentially arranged in the outer shell 1 from top to bottom;
the outer shell body 1 is further provided with an upper circulating hydraulic interface 6 and a lower circulating hydraulic interface 7, the upper circulating hydraulic interface 6 is located between the upper full seal 2 and the radial fixing piece 3, and the lower circulating hydraulic interface 7 is located between the bearing fixing piece 4 and the lower full seal 5.
As an embodiment of the present invention, the upper full seal 2 and the lower full seal 5 are the same, and both include:
the first driving hydraulic cylinders 21 are oppositely arranged on the same horizontal plane on the outer shell 1;
the two full-sealed half plates 22 are respectively and fixedly connected with the first driving hydraulic cylinder 21, and the full-sealed half plates 22 linearly slide along the inner part of a sliding groove formed in the outer shell 1;
the inner end of the full-sealing half plate 22 is provided with a through hole for allowing a drill rod to pass through;
the inner end of the full-sealing half plate 22 is provided with a rubber ring 23 which is in sealing contact with the drill rod.
As an embodiment of the present invention, the radial direction fixing member 3 includes:
two second driving hydraulic cylinders 31 are oppositely arranged on the same horizontal plane on the outer shell 1;
two radial stabilizing half plates 32 are respectively and fixedly connected with the second driving hydraulic cylinder 31, and the radial stabilizing half plates 32 linearly slide along the sliding grooves formed in the outer shell 1;
the inner end of the radially stabilising half-plate 32 is provided with a through-hole allowing a drill rod to pass through.
As an embodiment of the present invention, the load bearing fixing member 4 includes:
two third driving hydraulic cylinders 41 are oppositely arranged on the same horizontal plane on the outer shell 1;
the two bearing half plates 42 are respectively and fixedly connected with the third driving hydraulic cylinder 41, and the bearing half plates 42 linearly slide along a sliding groove formed in the outer shell 1;
the inner end of the bearing half plate 42 is provided with a through hole which allows a drill rod to pass through and is provided with a conical bearing inclined plane;
there is a gap between the load bearing half-plate 42 and the radially stabilising half-plate 32.
In an embodiment of the present invention, the first driving hydraulic cylinder 21 is vertically disposed on an outer wall of the outer housing 1, and the outer housing 1 is provided with a sliding groove for allowing the full-sealing half plate 22 to slide.
As an embodiment of the present invention, the rubber ring 23 is in a ring structure and is disposed in the middle of the inner end surface of the full-sealed half plate 22, and the inner end of the rubber ring 23 extends from the inner end surface of the full-sealed half plate 22.
As an embodiment of the present invention, two radial stabilizing half-plates 32 are combined into a rectangular parallelepiped plate-shaped structure, and the thickness of the radial stabilizing half-plate 32 is greater than that of the upper full-enclosure 2.
As an embodiment of the invention, the upper circulation hydraulic connection 6 is located directly above the lower circulation hydraulic connection 7.
The working principle and the beneficial effects of the technical scheme are as follows:
go up full sealing 2 and be used for plugging up the upper end of the inside through-hole of shell body 1. Clamping holes for fixing the drill rod are formed in the middle of the radial fixing pieces 3 and the middle of the bearing fixing pieces 4, a small gap is formed between the radial fixing pieces 3 and the bearing fixing pieces 4, so that the radial fixing pieces and the bearing fixing pieces are matched to fix the drill rod in the radial direction and the axial direction, and a conical bearing inclined surface formed on the bearing half plate 42 is used for suspending a drill rod joint with a conical step.
The upper circulation hydraulic interface 6 and the lower circulation hydraulic interface 7 are both connected with an output device of high-pressure drilling fluid, so that when the upper full-sealing piece 2 and the lower full-sealing piece 5 are in sealing contact with a drill rod to enable the inside of the whole outer shell 1 to be used as an independent sealing space, the high-pressure drilling fluid is injected into the inside of the outer shell 1 through the upper circulation hydraulic interface 6 and the lower circulation hydraulic interface 7.
The adjustable and controllable pressure device for the drilling wellhead, provided by the invention, has the advantages that through the internal and external circulation dual system, the drilling fluid circulation system which does not stop the circulation of the drilling fluid and can also unload the drilling rod is provided, the pressure fluctuation during the circulation of the drilling fluid is eliminated, and the drilling accidents are effectively prevented.
Finally, it should be noted that: 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 or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a well drilling well head can regulated and control pressure equipment device which characterized in that sets up in well drilling circulation hydraulic system, includes:
the outer shell (1) is arranged in a well, and a through hole allowing a drill rod to penetrate through is formed in the outer shell (1);
an upper full seal (2), a radial fixing piece (3), a bearing fixing piece (4) and a lower full seal (5) are sequentially arranged in the outer shell (1) from top to bottom;
the outer shell (1) is further provided with an upper circulating hydraulic interface (6) and a lower circulating hydraulic interface (7), the upper circulating hydraulic interface (6) is located between the upper full-sealing part (2) and the radial fixing part (3), and the lower circulating hydraulic interface (7) is located between the bearing fixing part (4) and the lower full-sealing part (5).
2. A controllable and pressure equipment at a drilling wellhead according to claim 1, characterized in that the upper full seal (2) and the lower full seal (5) are the same and comprise:
the first driving hydraulic cylinder (21), two first driving hydraulic cylinders (21) are oppositely arranged on the same horizontal plane on the outer shell (1);
the two full-sealing half plates (22) are respectively and fixedly connected with the first driving hydraulic cylinder (21), and the full-sealing half plates (22) linearly slide along the inner part of a sliding groove formed in the outer shell (1);
the inner end of the full-sealing half plate (22) is provided with a through hole allowing a drill rod to pass through;
and the inner end of the full-sealing half plate (22) is provided with a rubber ring (23) which is in sealing contact with the drill rod.
3. The adjustable and controllable pressure device of a drilling wellhead as claimed in claim 1, wherein: the radial fixing member (3) includes:
the second driving hydraulic cylinders (31) are oppositely arranged on the same horizontal plane on the outer shell (1);
the two radial stabilizing half plates (32) are respectively and fixedly connected with the second driving hydraulic cylinder (31), and the radial stabilizing half plates (32) linearly slide along a sliding groove formed in the outer shell (1);
the inner end of the radial stabilizing half-plate (32) is provided with a through hole for allowing a drill rod to pass through.
4. A controllable and controllable pressure apparatus at a drilling wellhead as claimed in claim 3 wherein: the load-bearing fastener (4) comprises:
the third driving hydraulic cylinders (41), two third driving hydraulic cylinders (41) are oppositely arranged on the same horizontal plane on the outer shell (1);
the two bearing half plates (42) are respectively and fixedly connected with the third driving hydraulic cylinder (41), and the bearing half plates (42) linearly slide along the inner part of a sliding groove formed in the outer shell (1);
the inner end of the bearing half plate (42) is provided with a through hole which allows a drill rod to pass through and is provided with a conical bearing inclined plane;
a gap is formed between the bearing half-plate (42) and the radial stabilizing half-plate (32).
5. A controllable and controllable pressure apparatus at a drilling wellhead as claimed in claim 2 wherein: the first driving hydraulic cylinder (21) is vertically arranged on the outer wall of the outer shell (1), and a sliding groove allowing the full-sealing half plate (22) to slide is formed in the outer shell (1).
6. A controllable and controllable pressure apparatus at a drilling wellhead as claimed in claim 2 wherein: the rubber ring (23) is of an annular structure and is arranged in the middle of the inner end face of the full-sealed half plate (22), and the inner end of the rubber ring (23) extends out of the inner end face of the full-sealed half plate (22).
7. A controllable and controllable pressure apparatus at a drilling wellhead as claimed in claim 3 wherein: two the concatenation of radial firm half board (32) is a cuboid platelike structure, the thickness of radial firm half board (32) is greater than go up the thickness of full sealing (2).
8. The adjustable and controllable pressure device of a drilling wellhead as claimed in claim 1, wherein: the upper circulating hydraulic interface (6) is positioned right above the lower circulating hydraulic interface (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248885.3A CN113863878A (en) | 2021-10-26 | 2021-10-26 | Pressure regulating and controlling device for well mouth of drilling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248885.3A CN113863878A (en) | 2021-10-26 | 2021-10-26 | Pressure regulating and controlling device for well mouth of drilling well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113863878A true CN113863878A (en) | 2021-12-31 |
Family
ID=78998078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111248885.3A Pending CN113863878A (en) | 2021-10-26 | 2021-10-26 | Pressure regulating and controlling device for well mouth of drilling well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113863878A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6325159B1 (en) * | 1998-03-27 | 2001-12-04 | Hydril Company | Offshore drilling system |
| WO2002036928A1 (en) * | 2000-10-31 | 2002-05-10 | Coupler Developments Limited | Continuous circulation drilling method |
| US20030106712A1 (en) * | 1999-03-02 | 2003-06-12 | Weatherford/Lamb, Inc. | Internal riser rotating control head |
| US6591916B1 (en) * | 1998-10-14 | 2003-07-15 | Coupler Developments Limited | Drilling method |
| US20080060846A1 (en) * | 2005-10-20 | 2008-03-13 | Gary Belcher | Annulus pressure control drilling systems and methods |
| CN106285528A (en) * | 2016-09-28 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | The pressure control device of continuous cyclic drilling |
| CN106996271A (en) * | 2016-01-26 | 2017-08-01 | 中石化石油工程技术服务有限公司 | A kind of Continuous Circulation Drilling System and method |
| CN110485954A (en) * | 2019-08-09 | 2019-11-22 | 张作阳 | Continuous circulation of drilling mud Processes and apparatus |
-
2021
- 2021-10-26 CN CN202111248885.3A patent/CN113863878A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6325159B1 (en) * | 1998-03-27 | 2001-12-04 | Hydril Company | Offshore drilling system |
| US6591916B1 (en) * | 1998-10-14 | 2003-07-15 | Coupler Developments Limited | Drilling method |
| US20030106712A1 (en) * | 1999-03-02 | 2003-06-12 | Weatherford/Lamb, Inc. | Internal riser rotating control head |
| WO2002036928A1 (en) * | 2000-10-31 | 2002-05-10 | Coupler Developments Limited | Continuous circulation drilling method |
| US20080060846A1 (en) * | 2005-10-20 | 2008-03-13 | Gary Belcher | Annulus pressure control drilling systems and methods |
| CN106996271A (en) * | 2016-01-26 | 2017-08-01 | 中石化石油工程技术服务有限公司 | A kind of Continuous Circulation Drilling System and method |
| CN106285528A (en) * | 2016-09-28 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | The pressure control device of continuous cyclic drilling |
| CN110485954A (en) * | 2019-08-09 | 2019-11-22 | 张作阳 | Continuous circulation of drilling mud Processes and apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205918361U (en) | Perpendicular drilling tool of machinery | |
| WO2023070852A1 (en) | Liquid end and plunger pump | |
| CN219388084U (en) | Fracturing pump hydraulic end device for conveying liquid carbon dioxide | |
| CN201705258U (en) | Elastic claw draggable bottom plug for expansion pipe | |
| CN113863878A (en) | Pressure regulating and controlling device for well mouth of drilling well | |
| CN205918378U (en) | Portable type drilling machine prevents running drilling rod holder | |
| CA2468433A1 (en) | A wellhead assembly for communicating with the casing hanger annulus | |
| CN219179125U (en) | Rock high temperature high pressure environment simulation experiment device and experiment system thereof | |
| CN209100004U (en) | A kind of sucker rod annular blowout preventer | |
| CN216199461U (en) | High-frequency oil cylinder | |
| CN212898349U (en) | Oil gas well casing head | |
| CN108589832A (en) | Pressure limiting valve applied to water supply pipe | |
| CN213953533U (en) | Shale oil and gas drilling fracturing water conveying pipeline connecting piece of components of a whole that can function independently installation | |
| CN212317915U (en) | Wellhead stabilizing device for submarine drilling | |
| CN211312586U (en) | Barrel type seabed wellhead stabilizing base structure | |
| CN212054591U (en) | Underground flexible continuous composite pipe connecting joint with cable preset on inner wall | |
| CN2711380Y (en) | Apparatus for anti-blowout during snubbing serving for full-sealing zero-pressure conversion oil-water well | |
| CN110595702B (en) | Double-oil-pipe pumping pressure tool and hydraulic test method | |
| CN201330612Y (en) | Double-action plunger suspending type upright post for hydraulic support | |
| CN220133914U (en) | Quick connecting device for power head and drill rod | |
| CN221346863U (en) | MCP packer | |
| CN212106443U (en) | Equal-support guide hollow rod pneumatic and hydraulic cylinder | |
| CN111551314B (en) | Be applied to sheathed tube gas tightness detection device | |
| CN213541492U (en) | Double-sealing device for inner cavity of packing box of valve rod of control valve | |
| CN219953288U (en) | Wellhead sealing device for underground operation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211231 |