CN103306628A - Mechanical recovery wellhead boost protector - Google Patents
Mechanical recovery wellhead boost protector Download PDFInfo
- Publication number
- CN103306628A CN103306628A CN2013101918764A CN201310191876A CN103306628A CN 103306628 A CN103306628 A CN 103306628A CN 2013101918764 A CN2013101918764 A CN 2013101918764A CN 201310191876 A CN201310191876 A CN 201310191876A CN 103306628 A CN103306628 A CN 103306628A
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- Prior art keywords
- protector
- wellhead
- boost
- mechanical recovery
- machine
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- 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.)
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Abstract
The invention discloses a mechanical recovery wellhead boost protector. The mechanical recovery wellhead boost protector is mounted between a well head and an oil pipe, and comprises a cylindrical main body; one end of the main body is connected with a wellhead flange, and the other end is mounted inside the oil pipe; at least one expansion ring is arranged on the surface of the end part of the other end of the main body; the expansion rings are embedded into a ring-shaped groove in the main body; the two expansion rings are arranged side by side; and the outer surface of the end part of the main body, which is connected with the wellhead flange, is a conical surface. During use, the mechanical recovery wellhead boost protector can firstly be switched from the mechanical recovery wellhead to the well, the upper part is connected with the wellhead flange, the mechanical recovery wellhead boost protector can be used to hang an oil extracting rod on the boost short circuit step, the lower part is sealed into the oil pipe; after the construction pressure is exerted, the seal expands, and higher pressure leads to tighter sealing, so that the purpose of separating a protecting pipe and the mechanical recovery wellhead, and the purpose of no pressure-bearing on the mechanical recovery wellhead are both achieved.
Description
Technical field
The invention provides a kind of machine-pumped oil well mouth protector that boosts, belong to the petroleum recovering equipment technical field.
Background technology
The machine-pumped oil well mouth is realized the operation of well inner high voltage under the prerequisite of motionless well inner tube, bar, reduced the well control risk.If take to trip out well inner tube, bar operation and change the well head construction, the one, need to employ large-scale working rig time-consuming; The 2nd, the well control risk strengthens, and is prone to accident; The 3rd, need to spend a large amount of financial resources and material resources.
Summary of the invention
In order to reduce the pressure control difficulty in the oil well, keep the high pressure in the oil well, the invention provides a kind of machine-pumped oil well mouth protector that boosts.
Purpose of the present invention is come specific implementation by the following technical programs:
The machine-pumped oil well mouth protector that boosts; be installed between wellhead flange and the oil pipe; comprise cylindrical body; one end of body is connected with wellhead flange; the other end is installed in oil pipe inside; and the end outer surface at the body other end is provided with at least one expansion loop, in the embedded ring cutting groove that is installed on the body of described expansion loop.
Described expansion loop is provided with twice, and is arranged side by side.
The end outer surface that described body is connected with wellhead flange is made as the conical surface.
Be provided with the projection of ring-type in the middle of the external surface of described expansion loop, in order to contact sealing with the inwall of described oil pipe.
During use; the protector that first the machine-pumped oil well mouth boosted is exchanged down in the machine-pumped oil well well head in the well; top is connected with wellhead flange; by the machine-pumped oil well mouth protector that boosts sucker rod in the well is hung in the short circuit that boosts on the step, lower seal enters in the oil pipe, after operation pressure is set up; sealing can be expanded; pressure more high sealability is tighter, plays the isolation of protection tube and machine-pumped oil well well head, and the machine-pumped oil well well head is the purpose of pressure-bearing not.
Description of drawings
The below is described in further detail the present invention with embodiment with reference to the accompanying drawings.
Fig. 1 is the machine-pumped oil well mouth of the present invention protector that boosts.
The specific embodiment
As shown in Figure 1; the described machine-pumped oil well mouth of the embodiment of the invention protector that boosts; be installed between wellhead flange 1 and the oil pipe; comprise cylindrical body 5; one end of body 5 is connected with wellhead flange 1; the other end is installed in oil pipe inside, and is provided with at least one expansion loop 3 in the end outer surface of body 5 other ends, in the described expansion loop 3 embedded ring cutting grooves that are installed on the body.
Described expansion loop 3 is provided with twice, and is arranged side by side.
Described body 5 is made as the conical surface with the end outer surface that wellhead flange 1 is connected.
Be provided with the projection 4 of ring-type in the middle of the external surface of described expansion loop 3, in order to contact sealing with the inwall of described oil pipe.
During use; the protector that first the machine-pumped oil well mouth boosted is exchanged down in the machine-pumped oil well well head in the well; top is connected with wellhead flange; by the machine-pumped oil well mouth protector that boosts sucker rod in the well is hung in the short circuit that boosts on the step, lower seal enters in the oil pipe, after operation pressure is set up; sealing can be expanded; pressure more high sealability is tighter, plays the isolation of protection tube and machine-pumped oil well well head, and the machine-pumped oil well well head is the purpose of pressure-bearing not.
Claims (4)
1. the machine-pumped oil well mouth protector that boosts; be installed between wellhead flange and the oil pipe; comprise cylindrical body; it is characterized in that; one end of body is connected with wellhead flange; the other end is installed in oil pipe inside, and is provided with at least one expansion loop in the end outer surface of the body other end, in the embedded ring cutting groove that is installed on the body of described expansion loop.
2. the machine-pumped oil well mouth as claimed in claim 1 protector that boosts is characterized in that, described expansion loop is provided with twice, and is arranged side by side.
3. the machine-pumped oil well mouth as claimed in claim 1 protector that boosts is characterized in that, the end outer surface that described body is connected with wellhead flange is made as the conical surface.
4. the machine-pumped oil well mouth as claimed in claim 1 protector that boosts is characterized in that, is provided with the projection of ring-type in the middle of the external surface of described expansion loop, in order to contact sealing with the inwall of described oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101918764A CN103306628A (en) | 2013-05-22 | 2013-05-22 | Mechanical recovery wellhead boost protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101918764A CN103306628A (en) | 2013-05-22 | 2013-05-22 | Mechanical recovery wellhead boost protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103306628A true CN103306628A (en) | 2013-09-18 |
Family
ID=49132304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101918764A Pending CN103306628A (en) | 2013-05-22 | 2013-05-22 | Mechanical recovery wellhead boost protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103306628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU183273U1 (en) * | 2018-07-23 | 2018-09-17 | Дамир Гарифуллович Сарваров | Device for protecting fountain fittings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060060349A1 (en) * | 2002-02-19 | 2006-03-23 | Duhn Rex E | Wellhead isolation tool and method of fracturing a well |
| CN201496022U (en) * | 2009-08-25 | 2010-06-02 | 中国石油化工股份有限公司 | High-pressure converter for machine pumping wellhead |
| CN101984214A (en) * | 2010-12-14 | 2011-03-09 | 西安福安创意咨询有限责任公司 | Compensating annular blowout preventer |
| CN202531080U (en) * | 2012-02-16 | 2012-11-14 | 中国石油天然气股份有限公司 | Wellhead sealing hanger |
| CN102828719A (en) * | 2012-09-26 | 2012-12-19 | 盐城彩阳电器阀门有限公司 | Integrated pluralistic oil production wellhead device |
| CN203271656U (en) * | 2013-05-22 | 2013-11-06 | 新疆力信油田工程技术有限公司 | Mechanical oil production wellhead pressure boosting protector |
-
2013
- 2013-05-22 CN CN2013101918764A patent/CN103306628A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060060349A1 (en) * | 2002-02-19 | 2006-03-23 | Duhn Rex E | Wellhead isolation tool and method of fracturing a well |
| CN201496022U (en) * | 2009-08-25 | 2010-06-02 | 中国石油化工股份有限公司 | High-pressure converter for machine pumping wellhead |
| CN101984214A (en) * | 2010-12-14 | 2011-03-09 | 西安福安创意咨询有限责任公司 | Compensating annular blowout preventer |
| CN202531080U (en) * | 2012-02-16 | 2012-11-14 | 中国石油天然气股份有限公司 | Wellhead sealing hanger |
| CN102828719A (en) * | 2012-09-26 | 2012-12-19 | 盐城彩阳电器阀门有限公司 | Integrated pluralistic oil production wellhead device |
| CN203271656U (en) * | 2013-05-22 | 2013-11-06 | 新疆力信油田工程技术有限公司 | Mechanical oil production wellhead pressure boosting protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU183273U1 (en) * | 2018-07-23 | 2018-09-17 | Дамир Гарифуллович Сарваров | Device for protecting fountain fittings |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130918 |