CN204252856U - A kind of deep & ultra-deep well aluminium drill pipe joint - Google Patents
A kind of deep & ultra-deep well aluminium drill pipe joint Download PDFInfo
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- CN204252856U CN204252856U CN201420620655.4U CN201420620655U CN204252856U CN 204252856 U CN204252856 U CN 204252856U CN 201420620655 U CN201420620655 U CN 201420620655U CN 204252856 U CN204252856 U CN 204252856U
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Abstract
The utility model provides a kind of deep & ultra-deep well aluminium drill pipe joint, comprise male and female nipple and first, second aluminum pipe body, the first aluminum pipe body, male thread joint, box thread joint and the second aluminum pipe body axially screw formation three grades of dual stage shoulder seal structures successively; Wherein the scene end of male and female nipple is equipped with the shoulder, screw thread, this dual stage shoulder of the shoulder structure that are connected successively in holding with factory, and the factory that the first aluminum pipe body is axially tightened on male thread joint holds interior and cooperatively interacts with male thread joint; The factory that second aluminum pipe body is axially tightened on box thread joint holds interior and cooperatively interacts with box thread joint; Cooperatively interact with male thread joint in the scene end that the scene end of box thread joint is axially tightened on male thread joint.The utility model, by improving the physical dimension of tool joint, improves bonding strength and the sealing performance of aluminium drill pipe joint and aluminum pipe body, significantly improves application life and the operating limit of aluminium drill pipe entirety.
Description
Technical field
The utility model belongs to oil and gas industry drilling technology field, is specifically related to a kind of deep & ultra-deep well aluminium drill pipe joint.
Background technology
Along with the development of petroleum industry, deep-well, ultradeep well and horizontal well quantity constantly increase, and exploration and development difficulty increases.Aluminium drill pipe has lightweight, the advantage such as good toughness, hydrogen sulfide corrosion-resistant, endurance, the drilling operation of the Holes of Complicated Wells such as extensive use and deep-well, ultradeep well, horizontal well.
For the aluminium drill pipe steel joint extensively adopted at present, many employings triangular form screw thread, single-stage shoulder hermetically-sealed construction, sealing performance at home and abroad due to its intensity that is threaded, fatigue performance and drilling rod in actual use procedure receives larger restriction, steel joint and aluminium alloys body portion are easily transshipped, tired, corrode and the failure accidents such as leakage.In addition, owing to adopting triangle thread to connect, easily there is aluminium alloys body Thread-sticking phenomenon in its assembling process, reduce the lumber recovery of drilling rod.In order to solve the problems of the technologies described above, the aluminium drill pipe joint of development of new physical dimension, has high scientific research value and application value widely.
Utility model content
The purpose of this utility model is to provide a kind of deep & ultra-deep well aluminium drill pipe joint, matched by aluminium drill pipe joint and aluminium alloy drill pipe body, improve bonding strength and the sealing performance of tool joint and body, improve application life and the operating limit of aluminium drill pipe entirety.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of deep & ultra-deep well aluminium drill pipe joint, comprise male thread joint, box thread joint and first, second aluminum pipe body, the first aluminum pipe body, male thread joint, box thread joint and the second aluminum pipe body axially screw formation three grades of dual stage shoulder seal structures successively; Wherein factory's end ecto-entad of male thread joint is provided with interconnective male thread joint first circular bead surface, the first inclined acme thread and male thread joint second circular bead surface successively; First aluminum pipe body is axially tightened in factory's end of male thread joint, and cooperatively interacts with male thread joint first circular bead surface, the first inclined acme thread and male thread joint second circular bead surface; Factory's end ecto-entad of box thread joint is provided with interconnective box thread joint first circular bead surface, the second inclined acme thread and box thread joint second circular bead surface successively; Second aluminum pipe body is axially tightened in factory's end of box thread joint, and cooperatively interacts with box thread joint first circular bead surface, the second inclined acme thread and box thread joint second circular bead surface; The scene end ecto-entad of male thread joint is provided with interconnective second circular bead surface, connecting thread and the first circular bead surface successively; The scene end of box thread joint is axially tightened in the scene end of male thread joint, and cooperatively interacts with the second circular bead surface, connecting thread and the first circular bead surface.
The tooth form of described connecting thread is API standard tool joint screw thread.
The tooth form of described connecting thread is 5-1/2FH full hole screw thread.
First, second described inclined acme thread is TT138 type screw thread.
The tapering of first, second described inclined acme thread is 1:12.
The external diameter of described male thread joint is 163mm ~ 177mm, and internal diameter is 95mm ~ 100mm, and length is 350mm ~ 450mm.
The external diameter of described box thread joint is 163mm ~ 177mm, and internal diameter is 95mm ~ 100mm, and length is 330mm ~ 430mm.
Described male thread joint and the external diameter of box thread joint are 177mm, and internal diameter is 100mm.
First, second described circular bead surface, male thread joint second circular bead surface and box thread joint second circular bead surface are end face; Male thread joint first circular bead surface and box thread joint first circular bead surface are the conical surface or end face.
Described male thread joint and the material of box thread joint are steel.
Relative to prior art, the beneficial effects of the utility model are:
The deep & ultra-deep well aluminium drill pipe joint that the utility model provides, axially screwed successively by the first aluminum pipe body, male thread joint, box thread joint and the second aluminum pipe body and form three grades of dual stage shoulder seal structures, relative to the single-stage shoulder hermetically-sealed construction used normal in prior art, the sealing performance of its intensity that is threaded, fatigue performance and drilling rod all obtains very large lifting, and the junction reducing aluminium drill pipe joint and aluminum pipe body is transshipped, tired, corrode and the probability of the failure accidents such as leakage.The utility model is by improving the physical dimension of tool joint, improve bonding strength and the sealing performance of aluminium drill pipe joint and aluminum pipe body, significantly improve application life and the operating limit of aluminium drill pipe entirety, the requirement of the Holes of Complicated Wells such as deep-well, ultradeep well to tool joint can be met.
Further, the utility model gives the concrete thread form of the connecting thread of above-mentioned deep & ultra-deep well aluminium drill pipe joint, the model of first, second inclined acme thread and tapering, and the concrete size of male thread joint and box thread joint, to obtain and the bonding strength of aluminum pipe body and the better aluminium drill pipe joint of sealing performance.
Accompanying drawing explanation
The structural representation of the aluminium drill pipe joint that Fig. 1 provides for the utility model;
Wherein: 1 is the first aluminum pipe body, 2 is the first circular bead surface of male thread joint, and 3 is the first inclined acme thread, 4 is the second circular bead surface of male thread joint, 5 is the first circular bead surface, and 6 is connecting thread, and 7 is the second circular bead surface, 8 is male thread joint, 9 is the first circular bead surface of box thread joint, and 10 is the second inclined acme thread, and 11 is the second circular bead surface of box thread joint, 12 is box thread joint, and 13 is the second aluminum pipe body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to Fig. 1, the deep & ultra-deep well aluminium drill pipe joint that the utility model provides, comprise the male thread joint 8 of steel, the box thread joint 12 of steel and first, second aluminum pipe body 1,13, the first aluminum pipe body 1, male thread joint 8, box thread joint 12 and the second aluminum pipe body 13 and axially screw formation three grades of dual stage shoulder seal structures successively; Wherein factory's end ecto-entad of male thread joint 8 is provided with the inclined acme thread 3 of interconnective male thread joint first circular bead surface 2, first and male thread joint second circular bead surface 4 successively; First aluminum pipe body 1 is axially tightened in factory's end of male thread joint 8, and mutually closely cooperates with the inclined acme thread 3 of male thread joint first circular bead surface 2, first and male thread joint second circular bead surface 4; Factory's end ecto-entad of box thread joint 12 is provided with the inclined acme thread 10 of interconnective box thread joint first circular bead surface 9, second and box thread joint second circular bead surface 11 successively; Second aluminum pipe body 13 is axially tightened in factory's end of box thread joint 12, and mutually closely cooperates with the inclined acme thread 10 of box thread joint first circular bead surface 9, second and box thread joint second circular bead surface 11; The scene end ecto-entad of male thread joint 8 is provided with interconnective second circular bead surface 7, connecting thread 6 and the first circular bead surface 5 successively; The scene end of box thread joint 12 is axially tightened in the scene end of male thread joint 8, and mutually closely cooperates with the second circular bead surface 7, connecting thread 6 and the first circular bead surface 5.
Wherein, the tooth form of connecting thread 6 is API standard tool joint screw thread, and tooth form can be selected to be 5-1/2FH full hole screw thread.First, second inclined acme thread 3,10 is TT138 type screw thread, and its tapering is 1:12.The external diameter of male thread joint 8 and box thread joint 12 is 163mm ~ 177mm, is preferably 177mm; Internal diameter is 95mm ~ 100mm, is preferably 100mm; The length of male thread joint 8 is 350mm ~ 450mm; The length of box thread joint 12 is 330mm ~ 430mm.First, second circular bead surface 5,7, male thread joint second circular bead surface 4 and box thread joint second circular bead surface 11 be end face; Male thread joint first circular bead surface 2 and box thread joint first circular bead surface 9 are the conical surface or end face.
In the aluminium drill pipe joint that the utility model provides, factory's end of male thread joint is connected with the first aluminum pipe body 1 by the first inclined acme thread 3 processed therein; Factory's end of box thread joint is connected with the second aluminum pipe body 13 by the partially trapezoidal type screw thread 10 of processing second processed therein; Factory's end of male thread joint is also processed with male thread joint first circular bead surface and male thread joint second circular bead surface that cooperatively interact with the first aluminum pipe body, to realize being sealed and matched between the first aluminum pipe body; Factory's end of box thread joint is also processed with box thread joint first circular bead surface and box thread joint second circular bead surface that cooperatively interact with the second aluminum pipe body, to realize being sealed and matched between the second aluminum pipe body.The scene end of male thread joint and the scene end of box thread joint are processed with the first circular bead surface 5, connecting thread 6 and the second circular bead surface 7 that cooperatively interact, respectively to realize being sealed and matched between male thread joint and box thread joint.
The deep & ultra-deep well aluminium drill pipe joint that the utility model provides in use, first the first aluminum pipe body is fastened in factory's end of male thread joint, second aluminum pipe body is fastened in factory's end of box thread joint, then the scene end of box thread joint is fastened in the scene end of male thread joint.
Above content is in conjunction with concrete case further detailed description of the utility model; can not assert that detailed description of the invention of the present utility model is only limitted to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to the utility model by submitted to claims determination scope of patent protection.
Claims (10)
1. a deep & ultra-deep well aluminium drill pipe joint, it is characterized in that: comprise male thread joint (8), box thread joint (12) and first, second aluminum pipe body (1,13), the first aluminum pipe body (1), male thread joint (8), box thread joint (12) and the second aluminum pipe body (13) axially screw formation three grades of dual stage shoulder seal structures successively; Wherein factory's end ecto-entad of male thread joint (8) is provided with interconnective male thread joint first circular bead surface (2), the first inclined acme thread (3) and male thread joint second circular bead surface (4) successively; First aluminum pipe body (1) is axially tightened in factory's end of male thread joint (8), and cooperatively interacts with male thread joint first circular bead surface (2), the first inclined acme thread (3) and male thread joint second circular bead surface (4); Factory's end ecto-entad of box thread joint (12) is provided with interconnective box thread joint first circular bead surface (9), the second inclined acme thread (10) and box thread joint second circular bead surface (11) successively; Second aluminum pipe body (13) is axially tightened in factory's end of box thread joint (12), and cooperatively interacts with box thread joint first circular bead surface (9), the second inclined acme thread (10) and box thread joint second circular bead surface (11); The scene end ecto-entad of male thread joint (8) is provided with interconnective second circular bead surface (7), connecting thread (6) and the first circular bead surface (5) successively; The scene end of box thread joint (12) is axially tightened in the scene end of male thread joint (8), and cooperatively interacts with the second circular bead surface (7), connecting thread (6) and the first circular bead surface (5).
2. deep & ultra-deep well aluminium drill pipe joint according to claim 1, is characterized in that: the tooth form of described connecting thread (6) is API standard tool joint screw thread.
3. deep & ultra-deep well aluminium drill pipe joint according to claim 2, is characterized in that: the tooth form of described connecting thread (6) is 5-1/2FH full hole screw thread.
4. according to the aluminium drill pipe joint of the deep & ultra-deep well in claim 1-3 described in any one, it is characterized in that: described first, second inclined acme thread (3,10) is TT138 type screw thread.
5. deep & ultra-deep well aluminium drill pipe joint according to claim 4, is characterized in that: the tapering of described first, second inclined acme thread (3,10) is 1:12.
6. deep & ultra-deep well aluminium drill pipe joint according to claim 1, is characterized in that: the external diameter of described male thread joint (8) is 163mm ~ 177mm, and internal diameter is 95mm ~ 100mm, and length is 350mm ~ 450mm.
7. the aluminium drill pipe joint of the deep & ultra-deep well according to claim 1 or 6, is characterized in that: the external diameter of described box thread joint (12) is 163mm ~ 177mm, and internal diameter is 95mm ~ 100mm, and length is 330mm ~ 430mm.
8. deep & ultra-deep well aluminium drill pipe joint according to claim 7, is characterized in that: described male thread joint (8) and the external diameter of box thread joint (12) are 177mm, and internal diameter is 100mm.
9. according to the aluminium drill pipe joint of the deep & ultra-deep well in claim 1-3 described in any one, it is characterized in that: described first, second circular bead surface (5,7), male thread joint second circular bead surface (4) and box thread joint second circular bead surface (11) are end face; Male thread joint first circular bead surface (2) and box thread joint first circular bead surface (9) are the conical surface or end face.
10. according to the aluminium drill pipe joint of the deep & ultra-deep well in claim 1-3 described in any one, it is characterized in that: described male thread joint (8) and the material of box thread joint (12) are steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620655.4U CN204252856U (en) | 2014-10-24 | 2014-10-24 | A kind of deep & ultra-deep well aluminium drill pipe joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620655.4U CN204252856U (en) | 2014-10-24 | 2014-10-24 | A kind of deep & ultra-deep well aluminium drill pipe joint |
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| CN204252856U true CN204252856U (en) | 2015-04-08 |
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| CN201420620655.4U Active CN204252856U (en) | 2014-10-24 | 2014-10-24 | A kind of deep & ultra-deep well aluminium drill pipe joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236194A (en) * | 2018-10-22 | 2019-01-18 | 中国石油天然气集团有限公司 | A kind of steel connector titanium alloy drilling rod |
| CN109236194B (en) * | 2018-10-22 | 2024-07-26 | 中国石油天然气集团有限公司 | Titanium alloy drill rod for steel joint |
-
2014
- 2014-10-24 CN CN201420620655.4U patent/CN204252856U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236194A (en) * | 2018-10-22 | 2019-01-18 | 中国石油天然气集团有限公司 | A kind of steel connector titanium alloy drilling rod |
| CN109236194B (en) * | 2018-10-22 | 2024-07-26 | 中国石油天然气集团有限公司 | Titanium alloy drill rod for steel joint |
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