CN203403854U - Well mouth blowout preventer for large-diameter logging instrument - Google Patents
Well mouth blowout preventer for large-diameter logging instrument Download PDFInfo
- Publication number
- CN203403854U CN203403854U CN201320486601.9U CN201320486601U CN203403854U CN 203403854 U CN203403854 U CN 203403854U CN 201320486601 U CN201320486601 U CN 201320486601U CN 203403854 U CN203403854 U CN 203403854U
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- well
- well lid
- way
- seal
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Abstract
Provided is a well mouth blowout preventer for a large-diameter logging instrument. Clamp connectors are symmetrically arranged on two sides of a well mouth four-way joint, the insides of the clamp connectors are through holes, the lower end face of a well lid is provided with a steel ring groove identical to the well mouth four-way joint, and steel rings are placed in the well lid and the steel ring groove of the well mouth four-way joint. The well lid is fixed on the well mouth four-way joint through a connecting bolt, the upper portion of the well lid is in threaded connection with the lower portion of a sealing box, and a sealing part is placed in the sealing box. The lower portion of a plug is in threaded connection with the upper portion of the sealing box, a logging cable penetrates the plug, the sealing box, the sealing part, the well lid and the well mouth four-way joint, and the inner diameter of the well lid is larger than the outer diameter of the logging instrument. The logging cable penetrates the sealing box and then extends into a well, the logging instrument does not penetrate the sealing box and can directly enter the large-diameter logging instrument, the sealing box is in threaded connection with a well lid oil extraction pipe after the large-diameter logging instrument descends the well, and the sealing effect is played. Therefore, the well mouth can be sealed during logging, blowout can be prevented during construction testing, and safety production can be achieved.
Description
Technical field
The utility model is the device that petroleum industry oil water well test is used, and is the wellhead blowout preventer that a kind of major diameter logger is used.
Background technology
In carrying out minor diameter instrument well logging construction, instrument can pass wellhead flange G.I.H, and cable bulkhead is fixed on to well head, tighten plug, accomplished airtight well logging, in during well logging, just can not pollute well site, accomplished cleaner production and play the effect that prevents blowout.But in major diameter instrument well logging construction, because instrument external diameter is Φ 70mm, Φ 89mm, cannot pass through oil pipe or wellhead assembly.Pollution-free for guaranteeing well head, when carrying out the well logging of major diameter instrument, employing be well head plug fixed disk, during construction, instrument only need link together with blowout preventer (or four-way flange) after going into the well by cable after plug fixed disk inserts, and after plug is fixed, just can construct.Although the pollution problem that well head plug fixed disk has solved well head, because it does not possess the effect of airtight well head, can not prevent blowout, so the potential safety hazard of existence.
Summary of the invention
The purpose of this utility model is to provide the wellhead blowout preventer that a kind of major diameter logger is used, major diameter logger go into the well after well head can be airtight, prevent that when construction test from blowout occurring, realize safety in production.
The purpose of this utility model is achieved in that and comprises connecting bolt, well head four-way, logging cable, well head four-way bilateral symmetry arranges clamp connection head, clamp connection head inside is through hole, the upper and lower end face of well head four-way is provided with steel ring slot and bolt hole, also comprise plug, seal box, seal, well lid, the circumference of well lid is provided with the bolt hole corresponding with well head four-way, well lid lower surface is provided with the steel ring slot identical with well head four-way, in the steel ring slot of well lid and well head four-way, place steel ring, well lid is fixed on well head four-way by connecting bolt, the top of well lid is connected with the lower thread of seal box, in seal box, place seal, the bottom of plug is threaded with the top of seal box,
Logging cable is through plug, seal box, seal, well lid, well head four-way, and the internal diameter of well lid is greater than the external diameter of logger.
The beneficial effects of the utility model: logging cable is gone into the well after penetrating seal box again, logger does not pass from seal box, can be lowered to major diameter logger, major diameter logger go into the well after seal box be connected with well lid oil recovery tubing round thread, have sealing function, so, during well logging, well head can be airtight, in the time of can preventing test construction, there is blowout, realize safety in production, there is significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the assembling drawing of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises plug 1, seal box 2, upper gasket 3, seal 4, lower gasket 5, well lid 6, connecting bolt 7, well head four-way 8, logging cable 9, well head four-way 8 bilateral symmetry arrange clamp connection head, clamp connection head inside is through hole Yu Jingnei UNICOM, clamp connection head is the structure with valve matched, after mounted valve, can control blowout, the upper and lower end face of well head four-way 8 is provided with steel ring slot and bolt hole, the circumference of well lid 6 is provided with the bolt hole corresponding with well head four-way 8, well lid 6 lower surfaces are provided with the steel ring slot identical with well head four-way 8, in the steel ring slot of well lid 6 and well head four-way 8, place steel ring, well lid 6 is fixed on well head four-way 8 by connecting bolt 7, connecting bolt 7 is respectively through well lid 6, bolt hole on well head four-way 8 is realized connection, the top of well lid 6 is connected with the lower thread of seal box 2, connecting thread is tubing round thread, seal, the interior placement seal 4 of seal box 2, above seal 4, place upper gasket 3, the underneath of seal 4 deposits packing ring 5, can make rotating wire at stifled 1 o'clock, seal 4 and upper gasket 3, rotation relatively between lower gasket 5, without seal 4 rotations, guarantee positiver sealing.The bottom of plug 1 is threaded with the top of seal box 2, connecting thread is straight thread, play transmission of pressure, logging cable 9 is through plug 1, seal box 2, upper gasket 3, seal 4, lower gasket 5, well lid 6, well head four-way 8, the internal diameter of well lid 6 is greater than the external diameter of logger, and the internal diameter of well lid 6 can be according to the external diameter design of logger.
Claims (3)
1. the wellhead blowout preventer that major diameter logger is used, comprise connecting bolt (7), well head four-way (8), logging cable (9), well head four-way (8) bilateral symmetry arranges clamp connection head, clamp connection head inside is through hole, the upper and lower end face of well head four-way (8) is provided with steel ring slot and bolt hole, it is characterized in that: also comprise plug (1), seal box (2), seal (4), well lid (6), the circumference of well lid (6) is provided with the bolt hole corresponding with well head four-way (8), well lid (6) lower surface is provided with the steel ring slot identical with well head four-way (8), in the steel ring slot of well lid (6) and well head four-way (8), place steel ring, well lid (6) is fixed on well head four-way (8) by connecting bolt (7), the top of well lid (6) is connected with the lower thread of seal box (2), in seal box (2), place seal (4), the bottom of plug (1) is threaded with the top of seal box (2), logging cable (9) is through plug (1), seal box (2), seal (4), well lid (6), well head four-way (8), the internal diameter of well lid (6) is greater than the external diameter of logger.
2. the wellhead blowout preventer that major diameter logger according to claim 1 is used, is characterized in that: above seal (4), place upper gasket (3), the underneath of seal (4) deposits packing ring (5).
3. the wellhead blowout preventer that major diameter logger according to claim 1 is used, it is characterized in that: the connecting thread of well lid (6) top and seal box (2) bottom is tubing round thread, the connecting thread on plug (1) bottom and seal box (2) top is straight thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486601.9U CN203403854U (en) | 2013-08-09 | 2013-08-09 | Well mouth blowout preventer for large-diameter logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486601.9U CN203403854U (en) | 2013-08-09 | 2013-08-09 | Well mouth blowout preventer for large-diameter logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403854U true CN203403854U (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486601.9U Expired - Fee Related CN203403854U (en) | 2013-08-09 | 2013-08-09 | Well mouth blowout preventer for large-diameter logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403854U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545242A (en) * | 2016-01-28 | 2016-05-04 | 沈阳工业大学通益科技有限公司 | High-temperature wellhead penetrator structure for electric submersible pump |
| CN105655915A (en) * | 2014-11-12 | 2016-06-08 | 上海逸讯能源科技有限公司 | Cable boost motor |
| CN105927180A (en) * | 2016-05-16 | 2016-09-07 | 徐秀 | Blowout preventer for well mouth blowout preventing device |
| CN105971543A (en) * | 2016-05-06 | 2016-09-28 | 中国地质大学（武汉） | Cable sealing device for wellhead of coalbed methane extraction well |
| CN106401519A (en) * | 2016-10-21 | 2017-02-15 | 承德市开发区富泉石油机械有限公司 | Device and method for taking out broken cable in well under pressure |
| CN112227977A (en) * | 2020-11-10 | 2021-01-15 | 中国石油天然气集团有限公司 | Storage type well logging blowout prevention joint |
| CN114542001A (en) * | 2020-11-25 | 2022-05-27 | 中国石油天然气集团有限公司 | Wellhead cable fixing device |
-
2013
- 2013-08-09 CN CN201320486601.9U patent/CN203403854U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655915A (en) * | 2014-11-12 | 2016-06-08 | 上海逸讯能源科技有限公司 | Cable boost motor |
| CN105545242A (en) * | 2016-01-28 | 2016-05-04 | 沈阳工业大学通益科技有限公司 | High-temperature wellhead penetrator structure for electric submersible pump |
| CN105971543A (en) * | 2016-05-06 | 2016-09-28 | 中国地质大学（武汉） | Cable sealing device for wellhead of coalbed methane extraction well |
| CN105927180A (en) * | 2016-05-16 | 2016-09-07 | 徐秀 | Blowout preventer for well mouth blowout preventing device |
| CN106401519A (en) * | 2016-10-21 | 2017-02-15 | 承德市开发区富泉石油机械有限公司 | Device and method for taking out broken cable in well under pressure |
| CN106401519B (en) * | 2016-10-21 | 2019-01-22 | 承德市开发区富泉石油机械有限公司 | A kind of device and method with pressure taking out fracture cable in well |
| CN112227977A (en) * | 2020-11-10 | 2021-01-15 | 中国石油天然气集团有限公司 | Storage type well logging blowout prevention joint |
| CN114542001A (en) * | 2020-11-25 | 2022-05-27 | 中国石油天然气集团有限公司 | Wellhead cable fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20160809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |