CN105888570A - Washout preventing tool connector - Google Patents
Washout preventing tool connector Download PDFInfo
- Publication number
- CN105888570A CN105888570A CN201610443474.2A CN201610443474A CN105888570A CN 105888570 A CN105888570 A CN 105888570A CN 201610443474 A CN201610443474 A CN 201610443474A CN 105888570 A CN105888570 A CN 105888570A
- Authority
- CN
- China
- Prior art keywords
- washout
- joint
- connector
- diameter section
- female adapter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 14
- 230000003628 erosive effect Effects 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical group [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004381 surface treatment Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 19
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A washout preventing tool connector comprises an inner threaded connector, wherein the inner threaded connector comprises a cylinder section, an inner table shoulder face and an inner diameter section, and the inner table shoulder face and the inner diameter section of the inner threaded connector are coated with an abrasion-resisting alloy layer. The washout preventing tool connector has the advantages that the washout bearing capability of the connector can be greatly improved by adopting a special structure and a surface treatment method, and smoothness of the inner threaded connector of a drill rod and a drill bit water hole are effectively ensured.
Description
Technical field
The present invention relates to drillng operation field, be specifically related to a kind of fluid erosion prevention tool-joint.
Background technology
In drilling operation course, the mode that various drilling tools (drilling rod, heavy weight drill pipe, drill collar etc.) are threaded connection, form whole drill string.Drill string is not only the circulation canal of drilling fluid, and transmits moment of torsion in drilling well, bears tension and compression, bending, reverses and vibrates, the compound action of the multiple load such as impact.Drilling fluid is in the pressurization of drilling pump, the valve of drilling pump will bear the erosion effect of the extruding with valve seat and cleaner for high-pressure drilling fluid, so that the caulking gum on valve is damaged, the fragment of caulking gum will enter drill string annulus with drilling fluid, the hydrophthalmia of blocking drill bit, causes pump of spraining, in addition, other the large-sized impurity being mixed in mud, also result in bit port blocking.When bit port is blocked, it is necessary to pull out of hole the hydrophthalmia removed in drill bit, this not only adds drilling period, and there is the risk causing down-hole complex accident.Therefore, in drilling process, especially deep-well, ultradeep well, the mode placing filter often through the female adapter at first drilling rod prevents the unimpeded of bit port.Simultaneously as the use of filter, cleaner for high-pressure drilling fluid will produce erosion to tool joint female thread inwall after by filter, not only wash out undercoating, formation erosion is cheated, and even results in thorn leakage and the failure accidents such as fracture of drilling rod, affects safety and the service life of drilling rod.Additionally, the drill rod threaded nipple of the dual stage shoulder for commonly using at present, form accessory torque shoulder owing to the second circular bead surface of female thread contact with externally threaded second torque shoulder face, it is impossible to placement filter in female adapter.
Summary of the invention
For solving the deficiencies in the prior art, the present invention provides a kind of fluid erosion prevention tool-joint.
The technical scheme is that a kind of fluid erosion prevention tool-joint, including female adapter, described female adapter includes cylindrical section, interior circular bead surface, internal diameter section, is coated with wear-resistant alloy layer on the interior circular bead surface and internal diameter section of described female adapter.
The material of described wear-resistant alloy layer is tungsten carbide, and hardness is
HRC67
, thickness is
0.35mm
, a length of
0.70m
。
The invention has the beneficial effects as follows: the present invention is exactly a kind of tool-joint invented in this context; this joint is by special structure and surface treatment method; the ability making joint bear erosion is greatly improved, and is effectively protected the female adapter of drilling rod and the unimpeded of bit port.
The material of described tool-joint and performance meet China's oil Gas Industry adapter standard
SY/T5200-2012
。
The female thread of described tool-joint drives external screw thread with kelly bar external screw thread or top and matches.
The wear-resistant alloy layer hardness of described tool-joint inner wall surface is more than
HRC 50
, thickness is
0.10
-
0.50mm
, a length of
0.5
-
0.8m
。
Described tool-joint can effectively bear the erosion of cleaner for high-pressure drilling fluid, reaches service life
1000
More than hour.
Accompanying drawing explanation
Figure
1
Structural representation for the present invention.
Wherein:
1
For female adapter,
2
For wear-resistant alloy layer,
11
For cylindrical section,
12
For interior circular bead surface,
13
For internal diameter section.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
A kind of fluid erosion prevention tool-joint, including female adapter
1
, described female adapter
1
Including cylindrical section
11
, interior circular bead surface
12
, internal diameter section
13
, in described female adapter
1
Interior circular bead surface
12
With internal diameter section
13
On be coated with wear-resistant alloy layer
2
。
Described wear-resistant alloy layer
2
Material be tungsten carbide, hardness is
HRC67
, thickness is
0.35mm
, a length of
0.70m
。
Female adapter
1
Material and the China's oil Gas Industry adapter standard that meets of performance
SY/T5200-2012
。
Described female adapter
1
Drive external screw thread with kelly bar external screw thread or top to match.
Wear-resistant alloy layer
2
It is sprayed on female adapter
1
Interior circular bead surface
12
With internal diameter section
13
On.
Implementing parameter more than using, through test, tool-joint can effectively bear
35MPa
The erosion of above cleaner for high-pressure drilling fluid, reaches service life
1100
Hour.
Claims (2)
1. a fluid erosion prevention tool-joint, including female adapter, it is characterised in that: described female adapter includes cylindrical section, interior circular bead surface, internal diameter section, is coated with wear-resistant alloy layer on the interior circular bead surface and internal diameter section of described female adapter.
A kind of fluid erosion prevention tool-joint the most according to claim 1, it is characterised in that: the material of described wear-resistant alloy layer is tungsten carbide, and hardness is HRC67, and thickness is 0.35mm, a length of 0.70m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443474.2A CN105888570A (en) | 2016-06-21 | 2016-06-21 | Washout preventing tool connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443474.2A CN105888570A (en) | 2016-06-21 | 2016-06-21 | Washout preventing tool connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105888570A true CN105888570A (en) | 2016-08-24 |
Family
ID=56729879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610443474.2A Pending CN105888570A (en) | 2016-06-21 | 2016-06-21 | Washout preventing tool connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824642A (en) * | 2019-11-20 | 2021-05-21 | 宝山钢铁股份有限公司 | Buttress thread joint with high anti-thread gluing performance |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0329990A1 (en) * | 1988-02-03 | 1989-08-30 | Nippon Steel Corporation | Oil-well tubing joints with anti-corrosive coating |
| JPH04362389A (en) * | 1991-06-05 | 1992-12-15 | Sumitomo Metal Ind Ltd | Pipe joint excellent in film adhesion and crevice corrosion resistance |
| CN2688966Y (en) * | 2004-03-30 | 2005-03-30 | 江汉石油钻头股份有限公司 | Anti-locking and abra sion-proof bearing pair |
| CN1995755A (en) * | 2006-12-26 | 2007-07-11 | 三一重工股份有限公司 | Wearable shockproof cutting ring and method for making same |
| CN102422067A (en) * | 2009-03-31 | 2012-04-18 | 住友金属工业株式会社 | Threaded joint for pipes |
| CN203271613U (en) * | 2013-06-05 | 2013-11-06 | 张立显 | Joint with variable diameters and high wear resistance of oil well fracturing pipeline |
| CN203476233U (en) * | 2013-09-12 | 2014-03-12 | 无锡华信石油机械有限公司 | Drill rod joint with composite structure |
| CN103946617A (en) * | 2011-11-18 | 2014-07-23 | 新日铁住金株式会社 | Tubular threaded joint having improved high torque performance |
| CN203856710U (en) * | 2014-05-26 | 2014-10-01 | 湛江经济技术开发区力通船舶工程有限公司 | Carbon-tungsten alloy slurry flushing pipe |
| CN104148885A (en) * | 2014-06-16 | 2014-11-19 | 黄河科技学院 | Polycrystalline diamond pick-rod machining process |
| CN205778594U (en) * | 2016-06-21 | 2016-12-07 | 东营威玛石油钻具有限公司 | A kind of fluid erosion prevention tool-joint |
-
2016
- 2016-06-21 CN CN201610443474.2A patent/CN105888570A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0329990A1 (en) * | 1988-02-03 | 1989-08-30 | Nippon Steel Corporation | Oil-well tubing joints with anti-corrosive coating |
| JPH04362389A (en) * | 1991-06-05 | 1992-12-15 | Sumitomo Metal Ind Ltd | Pipe joint excellent in film adhesion and crevice corrosion resistance |
| CN2688966Y (en) * | 2004-03-30 | 2005-03-30 | 江汉石油钻头股份有限公司 | Anti-locking and abra sion-proof bearing pair |
| CN1995755A (en) * | 2006-12-26 | 2007-07-11 | 三一重工股份有限公司 | Wearable shockproof cutting ring and method for making same |
| CN102422067A (en) * | 2009-03-31 | 2012-04-18 | 住友金属工业株式会社 | Threaded joint for pipes |
| CN103946617A (en) * | 2011-11-18 | 2014-07-23 | 新日铁住金株式会社 | Tubular threaded joint having improved high torque performance |
| CN203271613U (en) * | 2013-06-05 | 2013-11-06 | 张立显 | Joint with variable diameters and high wear resistance of oil well fracturing pipeline |
| CN203476233U (en) * | 2013-09-12 | 2014-03-12 | 无锡华信石油机械有限公司 | Drill rod joint with composite structure |
| CN203856710U (en) * | 2014-05-26 | 2014-10-01 | 湛江经济技术开发区力通船舶工程有限公司 | Carbon-tungsten alloy slurry flushing pipe |
| CN104148885A (en) * | 2014-06-16 | 2014-11-19 | 黄河科技学院 | Polycrystalline diamond pick-rod machining process |
| CN205778594U (en) * | 2016-06-21 | 2016-12-07 | 东营威玛石油钻具有限公司 | A kind of fluid erosion prevention tool-joint |
Non-Patent Citations (1)
| Title |
|---|
| 龚丹梅等: "双台肩钻杆接头刺漏原因分析", 《失效分析与预防》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824642A (en) * | 2019-11-20 | 2021-05-21 | 宝山钢铁股份有限公司 | Buttress thread joint with high anti-thread gluing performance |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |