CN202273603U - Anti-unscrew structure of offshore drilling and production pipe joint - Google Patents
Anti-unscrew structure of offshore drilling and production pipe joint Download PDFInfo
- Publication number
- CN202273603U CN202273603U CN2011204186285U CN201120418628U CN202273603U CN 202273603 U CN202273603 U CN 202273603U CN 2011204186285 U CN2011204186285 U CN 2011204186285U CN 201120418628 U CN201120418628 U CN 201120418628U CN 202273603 U CN202273603 U CN 202273603U
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- female joint
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Abstract
The utility model discloses an anti-unscrew structure of an offshore drilling and production pipe joint. The structure comprises a male joint, a female joint and bolts, wherein the male joint and the female joint are connected through matching threads; the tail end of the external thread of the male joint is provided with an annular outer wall axial groove; and the front end of the internal thread of the female joint is provided with a seam. After the male joint and the female joint are screwed up, 4-10 radial screw holes are uniformly distributed on the outer circumference at the junction of the annular outer wall axial groove of the male joint and the seam of the female joint, process holes are positioned on two sides of the radial screw holes, and the bolts are screwed into the radial screw holes to form a pin type anti-unscrew structure. In order to guarantee that the pin type anti-unscrew structure does not damage the sealing property of the offshore drilling and production pipe joint, the adopted radial screw holes are blind holes, the hole depth is less than or equal to 1/2 wall thickness at the position of the male joint, and the matched bolts have inner hexagon flat-top and flat-bottom structures. The anti-unscrew structure has the advantages of simple structure, accuracy in positioning, reliability in spinning stop and capabilities of effectively preventing reasonless unscrewing of the offshore drilling and production pipe joint at the mounting position and guaranteeing production safety of offshore petroleum drilling and production.
Description
Technical field
The utility model relates to a kind of thread connecting joint to be prevented unscrewing structure, and specifically, the utility model relates to the anti-structure that unscrews of a kind of ocean drilling pipe joint.
Background technology
The ocean natural environment is very complicated, and the technical difficulty of mud oil is more many greatly than land mud oil on the ocean.Be to adapt to the ocean specific work environments, to supporting oil drilling and extracting equipment the corresponding techniques requirement is arranged, the most basic technical requirements is not allow leakage.Ocean drilling conduit is the large diameter pipeline of supporting oil drilling, and pipe ends is provided with the nipple of corresponding construction, utilizes helicitic texture to realize that pipeline connects during use.Because ocean drilling conduit operating mode of living in is more abominable, both born outside the weight of pipe internal pressure and institute's connection pipeline, also bear the complicated active force in seabed, loosening phenomenon can take place in nipple once in a while under this complex stress condition.Drilling conduit in ocean is loosening to be major safety risks, is prone to cause Oil spills contaminated environment, the conduit major accidents such as well that fall, and only revolves structure so the drilling pipe joint of engine request ocean must have.
The utility model content
The utility model is primarily aimed at the deficiency of prior art, proposes a kind of simple in structurely, makes and easily, only to revolve the anti-structure that unscrews of reliable ocean drilling pipe joint.
The utility model is realized technical goal through following technical proposals.
Ocean drilling pipe joint is anti-to unscrew structure, and it comprises male joint, female joint and double-screw bolt.Said male joint and female joint are the pipe shape, and both connect with matching thread, and male joint external screw thread tail end is provided with ring outer wall axial notch, and female joint internal thread front end is provided with the seam that matches with public access headring outer wall axial notch.Its improvements are: after male joint and female joint are screwed; On public access headring outer wall axial notch and female joint seam junction excircle, be uniformly distributed with 4～10 radially screws; Fabrication hole is positioned at radially screw both sides, and double-screw bolt screws in radially and constitutes the anti-structure that unscrews of pin-type load in the screw.
Radially screw in the said structure is a blind hole, and hole depth is less than or equal to male joint position 1/2nd wall thickness, and supporting double-screw bolt is interior hexagonal tack flat-bottom structure.Radially screw adopts blind hole structure, does not destroy the sealing performance of male joint.
The utility model compared with prior art has following good effect:
1, the anti-structure that unscrews of pin-type load is set radially at the threaded engagement place, accurate positioning, only revolve reliable;
2, fabrication hole is a locating hole, and it is secure to repeat installation accuracy;
3, only revolve the sealing performance that structure does not change the ocean pipe joint.
Description of drawings
Fig. 1 is an ocean drilling pipe joint structural representation.
Fig. 2 is Fig. 1 part sectioned view, shows cooperating of male joint and female joint among the figure.
Fig. 3 is Fig. 1 part sectioned view, shows among the figure that double-screw bolt screws in the anti-structure that unscrews that the back forms.
Fig. 4 is Fig. 1 part sectioned view, shows the structural representation of male joint external screw thread tail end ring outer wall axial notch among the figure;
Fig. 5 is Fig. 1 part sectioned view, shows female joint internal thread front end fixing structure sketch map among the figure.
Fig. 6 is the anti-structure partial enlarged diagram that unscrews of pin-type load.
The specific embodiment
According to accompanying drawing the utility model is described further below.
Ocean drilling pipe joint shown in Figure 1 is anti-to unscrew structure, and it comprises male joint 1, female joint 2 and double-screw bolt 3.Male joint 1 and female joint 2 are connected with matching thread, and male joint 1 external screw thread tail end is provided with ring outer wall axial notch 1.3 as shown in Figure 4, and female joint 2 internal thread front ends are provided with seam as shown in Figure 5 2.1.After male joint 1 is screwed with female joint 2, on male joint 1 ring outer wall axial notch 1.3 and female joint 2 seams 2.1 junction excircles, be uniformly distributed with 4～10 radially screws 1.2, present embodiment joint nominal bore is Φ 300mm, and confirming to be provided with radially, screw 1.2 is 6.Every radially screw 1.2 bilateral symmetry each 1 of fabrication hole 1.1 is set, double-screw bolt 3 screws in radially and constitutes the anti-structure that unscrews of pin-type load in the screw 1.2.Prevent unscrewing the sealing that structure is not destroyed ocean drilling pipe joint in order to ensure pin-type load; In the present embodiment radially screw 1.2 degree of depth are male joint 1 position 1/2nd wall thickness; Supporting double-screw bolt 3 as shown in Figure 2 be interior hexagonal tack flat-bottom structure; Double-screw bolt 3 is installed to radially in the screw 1.2 as shown in Figure 6; Because of double-screw bolt 3 radially embeds male joint 1 and female joint 2 threaded engagement places, effectively avoid ocean drilling pipe joint to unscrew without reason at installed position, guarantee the sea oil drilling and production production safety.
Claims (2)
1. an ocean drilling pipe joint is prevented unscrewing structure, and it comprises male joint (1), female joint (2) and double-screw bolt (3); Said male joint (1) and female joint (2) are the pipe shape; Both connect with matching thread; Male joint (1) external screw thread tail end is provided with ring outer wall axial notch (3), and female joint (2) internal thread front end is provided with the seam (2.1) that matches with male joint (1) ring outer wall axial notch (1.3); It is characterized in that: after male joint (1) is screwed with female joint (2); On male joint (1) ring outer wall axial notch (1.3) and female joint (2) seam (2.1) junction excircle, be uniformly distributed with 4～10 radially screws (1.2); Fabrication hole (1.1) is positioned at radially screw (1.2) both sides, and double-screw bolt (3) screws in radially and constitutes the anti-structure that unscrews of pin-type load in the screw (1.2).
2. the anti-structure that unscrews of ocean according to claim 1 drilling pipe joint; It is characterized in that: said radially screw (1.2) is blind hole; Hole depth is less than or equal to male joint (1) position 1/2nd wall thickness, and supporting double-screw bolt (3) is interior hexagonal tack flat-bottom structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204186285U CN202273603U (en) | 2011-10-28 | 2011-10-28 | Anti-unscrew structure of offshore drilling and production pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204186285U CN202273603U (en) | 2011-10-28 | 2011-10-28 | Anti-unscrew structure of offshore drilling and production pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273603U true CN202273603U (en) | 2012-06-13 |
Family
ID=46193967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204186285U Expired - Lifetime CN202273603U (en) | 2011-10-28 | 2011-10-28 | Anti-unscrew structure of offshore drilling and production pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273603U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014283A (en) * | 2016-07-14 | 2016-10-12 | 中国海洋石油总公司 | Piling type riser connector |
| GB2540038A (en) * | 2015-06-02 | 2017-01-04 | Dril-Quip Inc | Anti-rotation device for connector assembly |
| CN110719793A (en) * | 2017-04-06 | 2020-01-21 | 韦伯斯特生物官能(以色列)有限公司 | Disposable pump chamber for infusion pump |
| CN112556982A (en) * | 2020-11-18 | 2021-03-26 | 西北工业大学 | Standard internal measurement section structure of high-speed water inlet test model |
-
2011
- 2011-10-28 CN CN2011204186285U patent/CN202273603U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2540038A (en) * | 2015-06-02 | 2017-01-04 | Dril-Quip Inc | Anti-rotation device for connector assembly |
| US10385994B2 (en) | 2015-06-02 | 2019-08-20 | Dril-Quip, Inc. | Anti-rotation device for connector assembly |
| NO344956B1 (en) * | 2015-06-02 | 2020-08-03 | Dril Quip Inc | Anti-rotation device for connector assembly |
| GB2588350A (en) * | 2015-06-02 | 2021-04-21 | Dril Quip Inc | Anti-rotation device for connector assembly |
| GB2540038B (en) * | 2015-06-02 | 2021-07-14 | Dril Quip Inc | Anti-rotation device for connector assembly |
| GB2588350B (en) * | 2015-06-02 | 2021-09-22 | Dril Quip Inc | Anti-rotation device for connector assembly |
| US11454338B2 (en) | 2015-06-02 | 2022-09-27 | Dril-Quip, Inc. | Anti-rotation device for connector assembly |
| CN106014283A (en) * | 2016-07-14 | 2016-10-12 | 中国海洋石油总公司 | Piling type riser connector |
| CN110719793A (en) * | 2017-04-06 | 2020-01-21 | 韦伯斯特生物官能(以色列)有限公司 | Disposable pump chamber for infusion pump |
| CN112556982A (en) * | 2020-11-18 | 2021-03-26 | 西北工业大学 | Standard internal measurement section structure of high-speed water inlet test model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |
|
| CX01 | Expiry of patent term |