CN101215960A - Light well head device for single well production - Google Patents
Light well head device for single well production Download PDFInfo
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- CN101215960A CN101215960A CNA2008100100521A CN200810010052A CN101215960A CN 101215960 A CN101215960 A CN 101215960A CN A2008100100521 A CNA2008100100521 A CN A2008100100521A CN 200810010052 A CN200810010052 A CN 200810010052A CN 101215960 A CN101215960 A CN 101215960A
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Abstract
The invention provides a light-duty single well oil extraction well top device, which comprises a casing valve, an oil tube valve, a main valve, a five-port valve body, a casing flange, a bolt and a sealing steel ring. The five-port valve body is a cylindrical shell, and is provided with five through holes. The upper port and the lower port of the shell are communicated with each other along the central line, and are communicated with a perpendicular hole on the left end of the five-port valve body to form three communicated holes. A crescent hole is arranged on the lower right end of the five-port valve body, and is communicated with and vertical to a hole on the right end of the five-port valve body. In this way, the five-port valve body is formed. The casing valve and the through hole arranged on the right end of the five-port, the oil tube valve and the through hole on the left end of the five-port valve body, the main valve and the through hole on the upper end of the five-port valve body are connected with clamps. The sealing steel ring is arranged in the steel ring socket of the casing flange. The casing flange is connected with the lower part of the five-port valve body with the bolt. The device solves the problem of the prior art that the four-port structure is complicated, and gas and liquid in the oil tube and the casing are communicated with each other. The device can be widely used in oil production operations in oil fields.
Description
Technical field:
The present invention relates to a kind of a kind of light well head device for single well production of oil field oil recovery usefulness.
Background technology:
China oil field five, the sixties, the wellhead for production major part is to follow the production wellhead structure of the former Soviet Union, it is to adopt Rumanian product that part is also arranged.Because the needs of oil-gas field development, China begins to design voluntarily and developed the part oil extraction well mouth equipment sixties in last century, present this type of technical specification of still employing and standard commonly used, but special wellhead assembly designs, develops (gas) wellhead assembly that recovers the oil by new criteria.Oil recovery (gas) wellhead assembly commonly used, its structure is parts such as big four, casing flange, oil pipe flange, tubing hanger, sleeve valve, total valve, tubing valve, little four-way, and its weak point is the big four complex structure, and connector is many; Employing tubing hanger structure occurs oil pipe often and the sleeve pipe gas-liquid is ganged up phenomenon.Along with Oilfield developing, no matter wellhead assembly is at material, or on the structure, trends towards making wellhead assembly that bigger compliance is arranged, to satisfy the needs of different mining phases and mining type.From wellhead assembly on the whole, mainly be conceived to reducing of size and alleviating of weight, i.e. light and flexible.The present invention succeeds in developing with regard to being based on above-mentioned situation.
Summary of the invention:
The purpose of this invention is to provide a kind of light well head device for single well production, this device solves the big four complex structure that exists in the prior art, connector is many, occurs the problem that oil pipe and sleeve pipe gas-liquid are ganged up often.
The technical solution adopted for the present invention to solve the technical problems is: a kind of light well head device for single well production is made up of sleeve valve, tubing valve, main valve, five-way valve body, casing flange, bolt, ring gasket; The five-way valve body is a cylindrical shell, be provided with five through holes, connect along the center line upper and lower opening at housing, and is communicated with formation three openings with the vertical mouth of five-way valve body left end, five-way valve body bottom righthand side is provided with the age of a draught animal in January, with five-way valve body right output port vertical connection, constitute the five-way valve body, sleeve valve and five-way valve body right-hand member openings, tubing valve and five-way valve body left end openings, main valve and five-way valve body upper end openings are clamp connection, ring gasket is put in the steel ring slot of casing flange, casing flange is connected with five-way valve body and function bolt, and wellhead blowout preventer can be installed in five-way valve body upper end; The five-way valve body has replaced the function of big four, tubing hanger, upper flange; During ordinary production, the oil of extraction arrives five-way valve body lower end through hole through tubing string and enters the ground petroleum pipeline through five-way valve body left end through hole, tubing valve.The gas of output is as passing through the oil jacket annular space by oil well casing in the stratum, through five-way valve body right-hand member through hole, sleeve valve enters the collar piping flow process, when underground work such as needs acidifying, well-flushing, can realize by sleeve valve, when playing the lower tubular column operation, as long as when unloading the five-way valve body with bolt that casing flange is connected, unload five-way valve body mounting shaft mouth blowout hookup, can carry out oil well and play the lower tubular column operation.
The invention has the beneficial effects as follows, this wellhead assembly is owing to adopt the five-way valve body to replace big four, tubing hanger, upper flange to simplify wellhead assembly, compact conformation, it highly is conventional wellhead assembly half, blowout hookup can be installed in five-way valve body top, makes this install alternative oil pumper well head device, flowing well wellhead assembly, horizontal well wellhead assembly, has simplified wellhead assembly and surface technology flow process, reduce leakage points, economic and practical.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present invention
Fig. 2 is a crescent moon hole generalized section in the five-way valve body of the present invention.
Among the figure 1, sleeve valve, 2, tubing valve, 3, main valve, 4, the five-way valve body, 5, casing flange, 6, bolt, 7, ring gasket.
The specific embodiment:
In the accompanying drawings, a kind of light well head device for single well production is made up of sleeve valve 1, tubing valve 2, main valve 3, five-way valve body 4, casing flange 5, bolt 6, ring gasket 7; Five-way valve body 4 is a cylindrical shell, be provided with five through holes, connect along the center line upper and lower opening at housing, and be communicated with five-way valve body 4 left end upright openings and constitute three through holes, five-way valve body 4 bottom righthand sides are provided with the age of a draught animal in January, with five-way valve body 4 right-hand member hole vertical connections, constitute five-way valve body 4, sleeve valve 1 and five-way valve body 4 right-hand member openings, tubing valve 2 and five-way valve body 4 left end openings, main valve 3 is clamp connection with five-way valve body 4 upper end openings, ring gasket 7 is put in the steel ring slot of casing flange 5, casing flange 5 is connected with bolt 6 with five-way valve body 4 bottoms, and blowout hookup can be installed in five-way valve body 4 upper ends.
Claims (1)
1. a light well head device for single well production is made up of sleeve valve (1), tubing valve (2), main valve (3), five-way valve body (4), casing flange (5), bolt (6), ring gasket (7); It is characterized in that: five-way valve body (4) is a cylindrical shell, be provided with five through holes, connect along the center line upper and lower opening at housing, and be communicated with five-way valve body (4) left end upright opening and constitute three through holes, five-way valve body (4) bottom righthand side is provided with a crescent moon hole, with five-way valve body (4) right-hand member hole vertical connection, constitute the five-way valve body, sleeve valve (1) and five-way valve body (4) right-hand member through hole, tubing valve (2) and five-way valve body (4) left end openings, main valve (3) is clamp connection with five-way valve body (4) upper end openings, ring gasket (7) is put in the steel ring slot of casing flange (5), and casing flange (5) is connected with bolt (6) with five-way valve body (4) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100100521A CN101215960A (en) | 2008-01-08 | 2008-01-08 | Light well head device for single well production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100100521A CN101215960A (en) | 2008-01-08 | 2008-01-08 | Light well head device for single well production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101215960A true CN101215960A (en) | 2008-07-09 |
Family
ID=39622463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100100521A Pending CN101215960A (en) | 2008-01-08 | 2008-01-08 | Light well head device for single well production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101215960A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080513A (en) * | 2010-12-22 | 2011-06-01 | 中国石油天然气集团公司 | Fire flooding oil recovery wellhead device |
| CN106368620A (en) * | 2015-07-24 | 2017-02-01 | 中国石油天然气股份有限公司 | Three-way nipple |
| CN115306341A (en) * | 2022-10-12 | 2022-11-08 | 大庆市华禹石油机械制造有限公司 | Carbon dioxide drives gas production wellhead assembly that possesses corrosion protection performance |
-
2008
- 2008-01-08 CN CNA2008100100521A patent/CN101215960A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080513A (en) * | 2010-12-22 | 2011-06-01 | 中国石油天然气集团公司 | Fire flooding oil recovery wellhead device |
| CN106368620A (en) * | 2015-07-24 | 2017-02-01 | 中国石油天然气股份有限公司 | Three-way nipple |
| CN115306341A (en) * | 2022-10-12 | 2022-11-08 | 大庆市华禹石油机械制造有限公司 | Carbon dioxide drives gas production wellhead assembly that possesses corrosion protection performance |
| CN115306341B (en) * | 2022-10-12 | 2022-12-16 | 大庆市华禹石油机械制造有限公司 | Carbon dioxide drives gas production wellhead assembly that possesses corrosion protection performance |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080709 |