CN201246113Y - Screw connection drill rod - Google Patents
Screw connection drill rod Download PDFInfo
- Publication number
- CN201246113Y CN201246113Y CNU2008201485461U CN200820148546U CN201246113Y CN 201246113 Y CN201246113 Y CN 201246113Y CN U2008201485461 U CNU2008201485461 U CN U2008201485461U CN 200820148546 U CN200820148546 U CN 200820148546U CN 201246113 Y CN201246113 Y CN 201246113Y
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- joint
- tail
- welding
- threaded
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 238000003672 processing method Methods 0.000 description 3
- 238000001192 hot extrusion Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a welding-free screw-thread connecting drilling rod which has the advantages of low cost and long service life. The drilling rod has an integrated structure including an extrusion forming tie-in, a drilling rod body and a knotting tail. By adopting a method of heating-extrusion forming at the two ends thereof, the tie-in, the drilling rod body and the knotting tail are formed into a whole, thereby preventing welding seam caused by welding, leaving out the use of a friction welding machine, and reducing materials and cost. By adopting an axis machining method, the drilling rod has the advantages of high coaxiality, lower load and straight drilling, and prolongs the service life.
Description
Technical field
The utility model belongs to a kind of drilling equipment, relates in particular to a kind of drilling rod that is threaded.
Background technology
In daily life, jointed rod usually is used to remove drill bit, applies the pressure of the drill, and transferring power is carried drilling fluid, carries out special operation, such as squeeze method, processing down-hole accident etc.Prior art adopts the round steel car to become two silk heads of internal and external threads, is welded as a whole with drill pipe body then.It is many to produce such jointed rod material therefor, and also will use the friction-welding machine of specialty except that lathe, causes the cost of jointed rod higher.In addition, not prison welding causes easily snaps, and the welding axiality is low, and load is big and boring is not straight in the use.
The utility model content
Goal of the invention of the present utility model provides and a kind ofly exempts to weld, cost is low and the drilling rod that is threaded of long service life.
The utility model is taked following technical scheme in order to achieve the above object, and described drilling rod is by the joint of extrusion modling, drill pipe body and connects the integral that tail three parts constitute.
Described joint is a circular platform type with connecing tail, and joint is provided with external screw thread, connects tail and is provided with the internal thread that matches with the joint external screw thread.The drilling rod central axis is to being provided with through hole.
The utility model adopts two ends to add the method for hot extrusion molding, makes joint, drill pipe body and connects integral body of urogenesis, and that has avoided causing because weld snaps.And saved friction-welding machine, and reduced the use of material, reduced cost.Adopt the axle processing method, the axiality height, it is less to load, and boring is straight, the application life of having improved jointed rod.
Description of drawings
Accompanying drawing is a sectional view of the present utility model.
The specific embodiment
The drilling rod that is threaded is that the method that adopts two ends to add hot extrusion molding is made, and utilizes the lathe car to go out internal and external screw thread then, and adopts the axle processing method to offer through hole.
Described drilling rod is by the joint 1 of geological tube extrusion modling, drill pipe body 2 and connects the integral that tail 3 three parts constitute, and that has avoided causing because of welding snaps.Joint is a circular platform type with connecing tail, and joint is provided with external screw thread 4, connects tail and is provided with the internal thread 5 that matches with the joint external screw thread.Adopt an axle processing method, at the drilling rod central axis to being provided with through hole 6.During production in enormous quantities, the joint of drilling rod and connect tail and match, the joint of a drilling rod and another drilling rod connects tail by being threaded during use.
Claims (3)
1, a kind of drilling rod that is threaded is characterized in that: described drilling rod is by the joint of extrusion modling (1), drill pipe body (2) and connects the integral that tail (3) three parts constitute.
2, according to the described drilling rod that is threaded of claim 2, it is characterized in that: described joint is a circular platform type with connecing tail, and joint is provided with external screw thread (4), connects tail and is provided with the internal thread (5) that matches with the joint external screw thread.
3, according to the described drilling rod that is threaded of claim 1, it is characterized in that: described drilling rod central axis is to being provided with through hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201485461U CN201246113Y (en) | 2008-08-15 | 2008-08-15 | Screw connection drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201485461U CN201246113Y (en) | 2008-08-15 | 2008-08-15 | Screw connection drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246113Y true CN201246113Y (en) | 2009-05-27 |
Family
ID=40729933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201485461U Expired - Fee Related CN201246113Y (en) | 2008-08-15 | 2008-08-15 | Screw connection drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246113Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956534A (en) * | 2009-07-20 | 2011-01-26 | 陈伟琛 | Production technology of single-joint or integrated drill pipe |
| CN102172817A (en) * | 2011-01-26 | 2011-09-07 | 上海海隆石油管材研究所 | Method for machining ultrahigh thickening ratio controlled forming pipe and joint directly forging type drill rod |
| CN102926673A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Destabilization-prevention oil pipe joint |
-
2008
- 2008-08-15 CN CNU2008201485461U patent/CN201246113Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956534A (en) * | 2009-07-20 | 2011-01-26 | 陈伟琛 | Production technology of single-joint or integrated drill pipe |
| CN102172817A (en) * | 2011-01-26 | 2011-09-07 | 上海海隆石油管材研究所 | Method for machining ultrahigh thickening ratio controlled forming pipe and joint directly forging type drill rod |
| CN102926673A (en) * | 2012-12-02 | 2013-02-13 | 中国石油化工股份有限公司 | Destabilization-prevention oil pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20120815 |