CN114776247A - Hydraulic pumping unit and wellhead connecting device - Google Patents
Hydraulic pumping unit and wellhead connecting device Download PDFInfo
- Publication number
- CN114776247A CN114776247A CN202210567979.5A CN202210567979A CN114776247A CN 114776247 A CN114776247 A CN 114776247A CN 202210567979 A CN202210567979 A CN 202210567979A CN 114776247 A CN114776247 A CN 114776247A
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- pumping unit
- flange
- hydraulic pumping
- wellhead
- hydraulic
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- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
一种液压抽油机与井口连接装置涉及机械领域，液压抽油机主体安装有液压抽油机法兰，通过螺栓固定，井口安装井口法兰，液压抽油机法兰与井口法兰之间安装支撑柱，支撑柱一端与井口法兰连接，通过井口法兰紧固螺母及垫片锁紧固定，支撑柱另一端穿过液压抽油机法兰法兰孔，连接处上下面安装凹面垫片及凸面垫片，通过锁紧螺母锁紧固定液压抽油机法兰密封面与特种密封圈配合密封，本装置特殊密封圈不仅起到密封作用，同时起到旋转支点作用；支撑柱调整液压抽油机法兰通过特种密封圈旋转并固定作用，凹面垫片、凸面垫片通过螺母锁紧时，既可以调剂高度，又可以起到增大接触面积，防止松动现象发生。
A hydraulic pumping unit and a wellhead connection device relate to the field of machinery. The main body of the hydraulic pumping unit is provided with a hydraulic pumping unit flange, which is fixed by bolts. Install the support column. One end of the support column is connected with the wellhead flange, which is locked and fixed by the wellhead flange tightening nut and gasket. The other end of the support column passes through the flange hole of the hydraulic pumping unit flange, and the concave gasket is installed on the top and bottom of the connection. The sealing surface of the hydraulic pumping unit flange is locked and fixed by the lock nut and the special sealing ring is used for sealing. The special sealing ring of this device not only plays the role of sealing, but also acts as a rotating fulcrum; the support column adjusts the hydraulic pressure The pumping unit flange is rotated and fixed by a special sealing ring. When the concave gasket and the convex gasket are locked by the nut, it can not only adjust the height, but also increase the contact area and prevent loosening.
Description
Technical Field
The invention relates to the field of machinery, in particular to a connecting device of a hydraulic pumping unit and a wellhead.
Background
At present, hydraulic pumping units are mainly selected for oil extraction operation in oil fields in China, the hydraulic pumping units are compact in structure, light in weight, low in manufacturing cost, stable in work, easy to realize long stroke, convenient in stroke frequency adjustment, easy to realize safety protection, obvious in energy-saving effect and the like, and are particularly suitable for oil extraction operation of mountainous areas, mudflats and offshore platforms. Therefore, engineering technicians in various countries have already dedicated to the development and development of the hydraulic pumping unit, so that the hydraulic pumping unit can be popularized and applied in a wider range and has better economic benefits. Most of the existing hydraulic pumping units and well head connecting devices are fixed, once the problem of non-coaxial occurs, the radial force received by the hydraulic pumping unit is damaged, the hydraulic pumping unit needs to be maintained, the existing connecting devices can not adjust the relative coaxial angle between the hydraulic pumping unit and an oil pipe at will, manual adjustment can not guarantee sealing and fastening, and therefore the problem needs to be solved by one connecting device.
Disclosure of Invention
The invention aims to provide a connecting device of a hydraulic pumping unit and a wellhead, which is used for solving the problems that the hydraulic pumping unit cannot realize arbitrary angle adjustment and fastening on the premise of ensuring sealing and the like.
The technical scheme of the invention is as follows:
a hydraulic pumping unit and well head connecting device comprises a hydraulic pumping unit flange 1, a concave gasket 2, a convex gasket 3, a locking nut 4, a support pillar 5, a well head flange fastening nut 6, a gasket 7, a well head flange 8, a special seal ring 9, a hydraulic pumping unit flange sealing surface 10, a hydraulic pumping unit 11, a pumping pipe 12, a small four-way oil pipe 13, a Christmas tree 14 and a hydraulic pumping unit main body 15, wherein the hydraulic pumping unit main body 15 is provided with the hydraulic pumping unit flange 1 and is fixed by bolts, the well head is provided with the well head flange 8, the support pillar 5 is arranged between the hydraulic pumping unit flange 1 and the well head flange 8, one end of the support pillar 5 is connected with the well head flange 8 and is locked and fixed by the well head flange fastening nut 6 and the gasket 7, the other end of the support pillar 5 passes through a flange hole of the hydraulic pumping unit flange 1, the concave gasket 2 and the convex gasket 3 are arranged on the upper surface and the lower surface of the connection part, the oil pumping unit is locked and fixed through a locking nut 4, a Christmas tree 14 is installed below a flange 1 of the hydraulic oil pumping unit, a small four-way oil pipe 13 is installed in the Christmas tree 14, a seal is arranged between the flange 1 of the hydraulic oil pumping unit and the small four-way oil pipe 13, a sealing surface of the flange 1 of the hydraulic oil pumping unit is a flange sealing surface 10 of the hydraulic oil pumping unit, a special sealing ring 9 is matched and sealed with the flange sealing surface 10 of the hydraulic oil pumping unit, a hydraulic oil pumping rod 11 is installed in a main body 15 of the hydraulic oil pumping unit, and an oil pumping pipe 12 is arranged in a well.
3-8 support columns 5, preferably 4, 4 are more stable than 3, relatively more convenient and material-saving.
The concave gasket is a conical surface, and the convex gasket is an SR sphere. Concave surface gasket and convex surface gasket size cooperation, the gasket is the standard component, chooses for use the size as required.
The flange sealing surface 10 of the hydraulic pumping unit is a conical surface.
The special sealing ring 9 is an SR spherical surface.
The special sealing ring 9 is a single-side spherical surface or a double-side spherical surface.
The concave-convex gasket spherical structure can be decomposed on the nut and the flange.
The during operation, connect hydraulic pumping unit after, detect the depth of parallelism of hydraulic pumping unit flange 1 and well head flange 8, when nonparallel, produce certain contained angle, the angle leads to hydraulic sucker rod 11 and the contact of taking out oil pipe 12 when exceeding 1, thereby produce radial force, with support column 5, well head flange fastening nut 6, gasket 7, well head flange 8 is connected and is fixed, diagonal angle adjustment concave surface gasket 2 this moment, convex surface gasket 3, the high position that locking nut 4 is connected relative support column 5, make hydraulic pumping unit flange 1 pass through special sealing washer 9, the sealed face 10 contact department of hydraulic pumping unit flange takes place to rotate, until hydraulic pumping unit flange 1 is parallel with well head flange 8, locking nut 4. At the moment, the coaxiality of the hydraulic sucker rod 11 and the oil pumping pipe 12 can be accepted, the radial force applied to the hydraulic sucker rod 11 is solved, and the maintenance-free period of the hydraulic oil pumping unit is prolonged.
The invention has the beneficial technical effects that: the special sealing ring of the device not only plays a role in sealing, but also plays a role in rotating a fulcrum; support column adjustment hydraulic pumping unit flange passes through the rotation of special sealing washer and fixed action, thereby wherein lock nut and hydraulic pumping unit flange area of contact can diminish and take place not hard up easily that frictional force diminishes behind the production angle, concave surface gasket among the design device, convex surface gasket selects as required, usually the convex surface hole is little, press close to nut one side, the concave surface hole is big, press close to flange one side, the concave surface gasket, when the convex surface gasket passes through nut locking, both can transfer the prescription height, can play increase area of contact again, prevent not hard up the phenomenon and take place.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a cross-sectional view of fig. 1A-a.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a cross-sectional view of fig. 3B-B.
Fig. 5 is a schematic structural view of a sealing joint.
Fig. 6 is a schematic structural view of a seal ring provided in embodiment 2.
Fig. 7 is a schematic structural view of a seal ring provided in embodiment 3.
Detailed Description
The present application will now be described more fully hereinafter with reference to the accompanying drawings, in which all other embodiments of the invention can be made without inventive faculty, and which are within the scope of the invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example 1
With the attached figures 1, 2, 3, 4 and 5, the hydraulic pumping unit and well head connecting device comprises a hydraulic pumping unit flange 1, a concave gasket 2, a convex gasket 3, a locking nut 4, a support column 5, a well head flange fastening nut 6, a gasket 7, a well head flange 8, a special sealing ring 9, a hydraulic pumping unit flange sealing surface 10, a hydraulic pumping rod 11, a pumping pipe 12, a small four-way oil pipe 13, a Christmas tree 14 and a hydraulic pumping unit main body 15, wherein the hydraulic pumping unit flange 1 is arranged on the hydraulic pumping unit main body 15 and fixed through bolts, the well head flange 8 is arranged on the well head, the support column 5 is arranged between the hydraulic pumping unit flange 1 and the well head flange 8, one end of the support column 5 penetrates through a hydraulic flange 1 flange hole, the concave gasket 2 and the convex gasket 3 are arranged on the upper surface and the lower surface of the joint, the concave gasket 2 and the convex gasket 3 are locked and fixed through the locking nut 4, and the well head flange 8 at the other end of the support column 5 is connected, the special sealing ring 9 is connected with a small four-way oil pipe 13 through a wellhead flange fastening nut 6 and a gasket 7 which are locked and fixed; the flange sealing surface 10 of the hydraulic pumping unit is connected with a special sealing ring 9, a hydraulic pumping rod 11 is installed in a main body 15 of the hydraulic pumping unit, and an oil pumping pipe 12 is arranged in the well.
The special sealing ring 9 is of a single-side spherical structure.
In the connecting device, a special sealing ring 9, a flange sealing surface 10 of the hydraulic pumping unit and a small four-way oil pipe 13 play a role in sealing, and the special sealing ring 9 plays a role in a rotary fulcrum at the same time; the wellhead flange fastening nut 6, the gasket 7 and the wellhead flange 8 play a role in fixing the support column 5; concave gasket 2, convex side gasket 3, lock nut 4, support column 5 plays adjustment hydraulic pumping unit flange 1 and rotates and the fixed action through special sealing washer 9, thereby lock nut 4 and hydraulic pumping unit flange 1 area of contact can diminish after producing the angle thereby frictional force diminishes and takes place not hard up easily, concave side gasket 2 among the design equipment, convex side gasket 3 selects as required, the convex side hole is little usually, press close to nut one side, the concave side hole is big, press close to flange one side, concave side gasket 2, when convex side gasket 3 passes through nut locking, both can transfer the dose height, can play increase area of contact again, prevent not hard up the phenomenon and take place.
The connecting device can be applied to other well heads such as heavy well heads, simple well heads and the like and related applications, and is used for adjusting the angle range of the flange 1 of the hydraulic pumping unit and the flange 8 of the well head (namely, the hydraulic pumping unit 11 and the oil pipe 12) within +/-3 degrees. (if the angle exceeds +/-3 degrees, data analysis is needed, if the angle is used for non-stressed pipeline connection, the stress analysis can be ignored, and the angle can reach +/-45 degrees).
Example 2
With reference to fig. 6, the other structures are the same as those of embodiment 1, except that the special seal ring 9 is a double-sided spherical structure.
Example 3
With reference to fig. 7, the other structures are the same as those in embodiment 1, except that the seal ring is a conical seal ring, and the seal ring cannot rotate and adjust the angle, and can be used in a new well or used for adjusting the angle range between the hydraulic pumping unit flange 1 and the wellhead flange 8 (i.e., between the hydraulic pumping unit 11 and the oil pipe 12) to be within ± 0.5.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210567979.5A CN114776247B (en) | 2022-05-24 | 2022-05-24 | Hydraulic pumping unit and wellhead connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210567979.5A CN114776247B (en) | 2022-05-24 | 2022-05-24 | Hydraulic pumping unit and wellhead connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114776247A true CN114776247A (en) | 2022-07-22 |
| CN114776247B CN114776247B (en) | 2025-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210567979.5A Active CN114776247B (en) | 2022-05-24 | 2022-05-24 | Hydraulic pumping unit and wellhead connection device |
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| Country | Link |
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| CN (1) | CN114776247B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0011741A1 (en) * | 1978-11-13 | 1980-06-11 | Cameron Iron Works GmbH | Sealing ring for well-heads |
| CN2761819Y (en) * | 2005-01-24 | 2006-03-01 | 佟立辉 | Polished rod centering device of oil pumping unit |
| CN205936483U (en) * | 2016-07-29 | 2017-02-08 | 中国石油天然气股份有限公司 | Pumping unit wellhead deflector |
| CN111677483A (en) * | 2020-07-31 | 2020-09-18 | 山东巨能液压机械有限公司 | Hydraulic oil pumping machine connecting device |
| CN217481228U (en) * | 2022-05-24 | 2022-09-23 | 驰耐特石油科技(成都)有限公司 | Hydraulic pumping unit and wellhead connecting device |
-
2022
- 2022-05-24 CN CN202210567979.5A patent/CN114776247B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0011741A1 (en) * | 1978-11-13 | 1980-06-11 | Cameron Iron Works GmbH | Sealing ring for well-heads |
| CN2761819Y (en) * | 2005-01-24 | 2006-03-01 | 佟立辉 | Polished rod centering device of oil pumping unit |
| CN205936483U (en) * | 2016-07-29 | 2017-02-08 | 中国石油天然气股份有限公司 | Pumping unit wellhead deflector |
| CN111677483A (en) * | 2020-07-31 | 2020-09-18 | 山东巨能液压机械有限公司 | Hydraulic oil pumping machine connecting device |
| CN217481228U (en) * | 2022-05-24 | 2022-09-23 | 驰耐特石油科技(成都)有限公司 | Hydraulic pumping unit and wellhead connecting device |
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| Publication number | Publication date |
|---|---|
| CN114776247B (en) | 2025-05-02 |
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Address after: 116021 No.1, 38th Floor, No. 15, Area A, Xinghai Square, Shahekou District, Dalian City, Liaoning Province Patentee after: Chinatech Petroleum Technology (Dalian) Co.,Ltd. Country or region after: China Address before: No.916 Tiangong Avenue, Xinxing street, Tianfu New District, Chengdu, Sichuan 610000 Patentee before: ChinaTech Petroleum Technology (Chengdu) Co.,Ltd. Country or region before: China |
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