CN102877807A - High-pressure well head temporary guide base lowering tool for floating drilling system - Google Patents
High-pressure well head temporary guide base lowering tool for floating drilling system Download PDFInfo
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- CN102877807A CN102877807A CN2012104103243A CN201210410324A CN102877807A CN 102877807 A CN102877807 A CN 102877807A CN 2012104103243 A CN2012104103243 A CN 2012104103243A CN 201210410324 A CN201210410324 A CN 201210410324A CN 102877807 A CN102877807 A CN 102877807A
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- tool body
- guide base
- pressure well
- drilling system
- floating drilling
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Abstract
The invention relates to a high-pressure well head temporary guide base lowering tool applicable for a floating drilling system, which is used for lowering a temporary guide base in deep water drilling. The high-pressure well head temporary guide base lowering tool mainly comprises a mandril, an inner tool body, an outer tool body, a lug and a gland, wherein four inverted T-shaped grooves are arranged on the inner tool body; four bosses are arranged on an inner wall of the outer tool body; the lug is carried on an outer edge of the outer tool body; the inner tool body is connected with the mandril through a bolt; the outer tool body is matched with the inverted T-shaped grooves through the bosses; and the whole tool can be rotated when the mandril is rotated, so that the lug can enter into a J-shaped groove of an inner wall of the temporary guide base.
Description
Technical field
The present invention relates to offshore oil deep water drilling and production technology field.Specifically be exactly that a kind of oral interim guide base of high-pressure well that is applicable to floating drilling system is transferred instrument, interim guide base transfers when being used for ocean deepwater drilling.When marine drilling, interim guide base provides the guiding chassis, the misalignment that compensation causes unusually because of marine bottom, and provide support for Permanent guide structure.
Background technology
When carrying out marine drilling, in the darker situation of seawater, generally adopt drillship or semisubmersible drilling platform drilling well, wellhead equipment is installed on the subsea wellheads, and the floating drilling system in China deep water area adopts the subsea wellheads of standard at present.China's exploration and development offshore oil had for two more than ten years, and with semisubmersible platform drilling well hundreds of mouth, entirely by external import, the work that is lowered to installation and recycle-water well head in sea all is that foreign corporation sends the expert engineer to instruct operation to the underwater well head head system without exception.
Summary of the invention
The objective of the invention is: provide a kind of oral interim guide base of high-pressure well that is applicable to floating drilling system to transfer instrument, simple in structure, be convenient to processing and operation, save cost.
The technical solution used in the present invention is: the oral interim guide base of the floating drilling system high-pressure well instrument of transferring mainly is comprised of axle, in-house tool body, external tool body, projection and gland.
The in-house tool body is connected with axle by 4 lock-screws, and axle is rotated and driven the rotation of in-house tool body, has 4 inverted T shape grooves on the in-house tool body.
4 boss are arranged on the external tool body inwall, cooperate with 4 inverted T shape grooves of the external wall of in-house tool, when the in-house tool body rotates, drive the external tool body by 4 inverted T shape grooves and rotate; External tool body top is connected with gland by trip bolt, is used for protecting the tool interior structure; The external edge of while external tool has square groove and cooperates with 4 projections, and the projection outer rim is arcuation, is convenient to cooperate with the J type groove of interim guide base inwall.
The present invention adopts boss to cooperate to transmit motion with the inverted T shape groove, and is simpler and easy, convenient operation, and projection is made arcuation be convenient to and the cooperating of J type groove.
Description of drawings
Fig. 1 is the structural profile schematic diagram that the oral interim guide base of floating drilling system high-pressure well of the present invention is transferred instrument.
Fig. 2 is the right view of in-house tool body.
Fig. 3 is the top view of external tool body.
Fig. 4 is the schematic diagram that cooperates that the oral interim guide base of high-pressure well is transferred instrument and the oral interim guide base of high-pressure well.
Fig. 5 is the schematic diagram of J type groove in the interim guide base.
Figure number explanation: 1-axle, 2-trip bolt, 3-lock-screw, 4-in-house tool body, 5-external tool body, 6-projection, 7-inverted T shape groove, 8-boss, 9-J type groove, the interim guide base of 10-, 11-gland.
The specific embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Consult Fig. 1, Fig. 2, Fig. 3.The oral interim guide base of the floating drilling system high-pressure well instrument of transferring mainly is comprised of axle 1, in-house tool body 4, external tool body 5, projection 6 and gland 11.Have 4 inverted T shape grooves 7 on the in- house tool body 4,4 boss 8 are arranged on external tool body 5 inwalls.
Consult Fig. 1.By lock-screw 3 in-house tool body 4 is connected with axle 1, trip bolt 2 connects gland 11 and external tool body 5, is used for protecting the tool interior structure.
Consult Fig. 1, Fig. 2, Fig. 3.Mandrel 1, in-house tool body 4 rotates with axle 1, and the boss 8 of the inverted T shape groove 7 of in-house tool body 4 outer walls and external tool body 5 inwalls matches, and drives external tool body 5 and rotates; Mandrel 1 can make whole instrument rotate.
Consult Fig. 1, Fig. 4, Fig. 5.Interim guide base 10 inwalls have J type groove 9.Projection 6 is transferred along J type groove 9, when arriving the horizontal segment of J type groove 9, makes projection 6 arrive the tail end of J type groove 9 by live spindle 1, and then can transfer interim guide base 10.Transfer complete after, the instrument that pushes away slightly down can discharge instrument its horizontal segment that enters J type groove 9 and opposite spin axle 1.
Claims (4)
1. the oral interim guide base of high-pressure well that is applicable to floating drilling system is transferred instrument, mainly formed by axle (1), in-house tool body (4), external tool body (5), projection (6) and gland (11), have 4 inverted T shape grooves (7) on the in-house tool body (4), on external tool body (5) inwall 4 boss (8) are arranged.
2. the oral interim guide base of floating drilling system high-pressure well according to claim 1 is transferred instrument, it is characterized in that: in-house tool body (4) is connected with axle (1) by lock-screw (3); Have inverted T shape groove (7) on the in-house tool body (4).
3. the oral interim guide base of floating drilling system high-pressure well according to claim 1 is transferred instrument, it is characterized in that: external tool body (5) inwall has boss (8), and boss (8) cooperates with inverted T shape groove (7) on the in-house tool body (4).
4. the oral interim guide base of floating drilling system high-pressure well according to claim 1 is transferred instrument, it is characterized in that: external tool body (5) outer rim is carried projection (6), and projection (6) is arcuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104103243A CN102877807A (en) | 2012-10-25 | 2012-10-25 | High-pressure well head temporary guide base lowering tool for floating drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104103243A CN102877807A (en) | 2012-10-25 | 2012-10-25 | High-pressure well head temporary guide base lowering tool for floating drilling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102877807A true CN102877807A (en) | 2013-01-16 |
Family
ID=47479297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104103243A Pending CN102877807A (en) | 2012-10-25 | 2012-10-25 | High-pressure well head temporary guide base lowering tool for floating drilling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102877807A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497592A (en) * | 1981-12-01 | 1985-02-05 | Armco Inc. | Self-levelling underwater structure |
| CN101318545A (en) * | 2008-05-16 | 2008-12-10 | 浙江大学 | Deep sea equipment throwing device |
| CN101798911A (en) * | 2010-03-10 | 2010-08-11 | 中国石油天然气集团公司 | Underwater wellhead reclaiming tool |
| CN202243993U (en) * | 2011-07-08 | 2012-05-30 | 中国石油天然气集团公司 | Recyclable guiding foundation seat for ocean deepwater floating well drilling |
| CN203008831U (en) * | 2012-10-25 | 2013-06-19 | 中国石油大学(华东) | Floating type well drilling system high-pressure well square-shaped head temporary guide base lowering tool |
-
2012
- 2012-10-25 CN CN2012104103243A patent/CN102877807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497592A (en) * | 1981-12-01 | 1985-02-05 | Armco Inc. | Self-levelling underwater structure |
| CN101318545A (en) * | 2008-05-16 | 2008-12-10 | 浙江大学 | Deep sea equipment throwing device |
| CN101798911A (en) * | 2010-03-10 | 2010-08-11 | 中国石油天然气集团公司 | Underwater wellhead reclaiming tool |
| CN202243993U (en) * | 2011-07-08 | 2012-05-30 | 中国石油天然气集团公司 | Recyclable guiding foundation seat for ocean deepwater floating well drilling |
| CN203008831U (en) * | 2012-10-25 | 2013-06-19 | 中国石油大学(华东) | Floating type well drilling system high-pressure well square-shaped head temporary guide base lowering tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Wensheng Inventor after: Li Xuran Inventor after: Hou Chao Inventor after: Qin Haozhi Inventor before: Xiao Wensheng Inventor before: Li Xuran Inventor before: Hou Chao Inventor before: Yang Xiangxiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIAO WENSHENG LI XURAN HOU CHAO YANG XIANGXIANG TO: XIAO WENSHENG LI XURANHOU CHAO QIN HAOZHI |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |