CN103527100A - Method for connecting polycrystalline diamond compact (PDC) bit sintering body with connector body - Google Patents
Method for connecting polycrystalline diamond compact (PDC) bit sintering body with connector body Download PDFInfo
- Publication number
- CN103527100A CN103527100A CN201310524318.5A CN201310524318A CN103527100A CN 103527100 A CN103527100 A CN 103527100A CN 201310524318 A CN201310524318 A CN 201310524318A CN 103527100 A CN103527100 A CN 103527100A
- Authority
- CN
- China
- Prior art keywords
- sintering
- connector body
- bit
- pdc
- welding
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a method for connecting a polycrystalline diamond compact (PDC) bit sintering body with a connector body. The method is characterized in that the sintering body and the connector body are adopted, the sintering body is in matched connection with an internal thread and an inner stopping opening of the connector body through an external thread and an outer stopping opening, a whole PDC bit body is formed by welding, and the external thread of the sintering body is in matched connection with the internal thread of the connector body, the outer stopping opening of the sintering body is in matched connection with the inner stopping opening of the connector body, the sintering body is in fastened connection with the connector body, and the integral PDC bit body is formed by welding. The method for connecting the PDC bit sintering body with the connector body is a mode of connecting the PDC bit sintering body with the connector body and can guarantee welding strength, reduce welding difficulty and improve coaxiality of the sintering body with the connector body, target drilling accuracy of a directional well can be enhanced, the mechanical drilling speed of a PDC bit is improved, the service life is prolonged, and accidents of dropping of the sintering body and the connector body caused by unstable welding are avoided.
Description
Technical field
Patent of the present invention belongs to a kind of form of structure of connection, particularly the method for attachment of a kind of PDC drill-bit sintering body and fittings body.
Background technology
PDC drill bit is the abbreviation of polycrystalline diamond compact bit.At first, PDC drill bit can only be used in soft shale stratum, and reason is that hard interlayer can damage drill bit.But due to the appearance of new technology and the variation of structure, PDC drill bit can be used in and has bored the ground consisting of hard rock of hard interbedded layer and long section at present.PDC drill bit is that people are selected just more and more, and particularly, along with the improving constantly of PDC dentine amount and manufacture craft, this situation highlights all the more.Being connected of former domestic and international PDC drill-bit sintering body and fittings body adopts optical axis to be connected with unthreaded hole, and while creeping into, powerful moment of torsion can make weld bond rupture, and causes the major accident that in drilling process, sintered body and fittings body come off.
Summary of the invention
The present invention has overcome the defect of above-mentioned existence, and object is for problems such as bonding strength in solution PDC drill-bit sintering body and fittings body connection procedure is low, weld bond place easy fractures, and the method for attachment of a kind of PDC drill-bit sintering body and fittings body is provided.
The method of attachment of PDC drill-bit sintering body of the present invention and fittings body, it is characterized in that: adopt sintered body and fittings body, sintered body is cooperatively interacted and is connected with female end with the internal thread of male end and fittings body by external screw thread, by welding, form whole PDC bit body, the external screw thread of sintered body is connected with the screw-internal thread fit of fittings body; The male end of sintered body and the female end of fittings body are connected, and sintered body and fittings body are fastenedly connected, and by welding, form whole PDC bit body.
The method of attachment of PDC drill-bit sintering body of the present invention and fittings body, it is the type of attachment of a kind of PDC drill-bit sintering body and fittings body, can guarantee weld strength and reduce welding difficulty and the axiality of raising sintered body and fittings body, and can strengthen directional well brill to the accuracy of target, improve the rate of penetration of PDC drill bit, increase the service life, avoid because not prison welding makes sintered body and fittings body case accident.
Accompanying drawing explanation
Fig. 1 is PDC drill-bit sintering body and fittings body structural representation;
Fig. 2 is sintered body is connected and welds rear formation bit body structural representation with fittings body.In figure: the 1st, sintered body, the 2nd, fittings body.
The specific embodiment
The method of attachment of PDC drill-bit sintering body of the present invention and fittings body is achieved in that below in conjunction with accompanying drawing and illustrates.
See Fig. 1, Fig. 2, adopt sintered body 1 and fittings body 2, sintered body 1 is cooperatively interacted and is connected with female end with the internal thread of fittings body 2 with male end by external screw thread, by welding, forms whole PDC bit body, and the external screw thread of sintered body 1 is connected with the screw-internal thread fit of fittings body 2; The female end of the male end of sintered body 1 and fittings body 2 is connected, and sintered body 1 is fastenedly connected with fittings body 2, by welding, forms whole PDC bit body.
Implementation process:
1, turning external screw thread and male end coordinate processing with internal thread and the female end of fittings body after sintered body sintering;
2, connect sintered body and fittings body, and tighten with special spanner;
3, the weld seam at bevel for welding place;
4, turning weld seam, butt welded seam carries out ultrasonic wave (UT) and detects.
The method of attachment of PDC drill-bit sintering body of the present invention and fittings body, it is the type of attachment of a kind of PDC drill-bit sintering body and fittings body, the object being threaded is that the moment of torsion producing when creeping into is transferred to the material of fittings body own from commissure, then butt welded seam welds, and can guarantee weld strength and reduce welding difficulty.The object that seam connects is to improve the axiality of sintered body and fittings body.The present invention can strengthen directional well and bore the accuracy to target, improves the rate of penetration of PDC drill bit, increases the service life, and avoids because not prison welding makes sintered body and fittings body case accident.
Claims (1)
1. the method for attachment of a PDC drill-bit sintering body and fittings body, it is characterized in that: adopt sintered body (1) and fittings body (2), sintered body (1) is cooperatively interacted and is connected with female end with the internal thread of fittings body (2) with male end by external screw thread, by welding, form whole PDC bit body, the external screw thread of sintered body (1) is connected with the screw-internal thread fit of fittings body (2); The female end of the male end of sintered body (1) and fittings body (2) is connected, and sintered body (1) is fastenedly connected with fittings body (2), by welding, forms whole PDC bit body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310524318.5A CN103527100A (en) | 2013-10-31 | 2013-10-31 | Method for connecting polycrystalline diamond compact (PDC) bit sintering body with connector body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310524318.5A CN103527100A (en) | 2013-10-31 | 2013-10-31 | Method for connecting polycrystalline diamond compact (PDC) bit sintering body with connector body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527100A true CN103527100A (en) | 2014-01-22 |
Family
ID=49929409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310524318.5A Pending CN103527100A (en) | 2013-10-31 | 2013-10-31 | Method for connecting polycrystalline diamond compact (PDC) bit sintering body with connector body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464598A (en) * | 2015-11-30 | 2016-04-06 | 无锡中地钻探装备有限公司 | Full-section compact bit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566779A (en) * | 1995-07-03 | 1996-10-22 | Dennis Tool Company | Insert for a drill bit incorporating a PDC layer having extended side portions |
| CN2292894Y (en) * | 1996-12-23 | 1998-09-30 | 胜利石油管理局钻井工艺研究院 | Split double-core PDC drilling bit |
| CN2522605Y (en) * | 2001-12-31 | 2002-11-27 | 大庆石油管理局 | Casing wing PDC drill bit |
| CN2890316Y (en) * | 2005-11-16 | 2007-04-18 | 中国石化集团胜利石油管理局钻井工艺研究院 | Multistage double-core PDC drill bit |
| CN101016826A (en) * | 2007-03-08 | 2007-08-15 | 江汉石油钻头股份有限公司 | Bit body of diamond bit and manufacture method therefor |
| CN201288509Y (en) * | 2008-11-03 | 2009-08-12 | 上海中曼金刚石钻头有限公司 | Oriented PDC drill with great controllability |
| RU2377384C1 (en) * | 2008-04-16 | 2009-12-27 | Открытое акционерное общество "Волгабурмаш" (ОАО "Волгабурмаш") | Drilling bit with polycrystalline diamond elements |
| CN102678056A (en) * | 2012-06-04 | 2012-09-19 | 刘新军 | Cold-fixed PDC (polycrystalline diamond compact) bit |
-
2013
- 2013-10-31 CN CN201310524318.5A patent/CN103527100A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566779A (en) * | 1995-07-03 | 1996-10-22 | Dennis Tool Company | Insert for a drill bit incorporating a PDC layer having extended side portions |
| CN2292894Y (en) * | 1996-12-23 | 1998-09-30 | 胜利石油管理局钻井工艺研究院 | Split double-core PDC drilling bit |
| CN2522605Y (en) * | 2001-12-31 | 2002-11-27 | 大庆石油管理局 | Casing wing PDC drill bit |
| CN2890316Y (en) * | 2005-11-16 | 2007-04-18 | 中国石化集团胜利石油管理局钻井工艺研究院 | Multistage double-core PDC drill bit |
| CN101016826A (en) * | 2007-03-08 | 2007-08-15 | 江汉石油钻头股份有限公司 | Bit body of diamond bit and manufacture method therefor |
| RU2377384C1 (en) * | 2008-04-16 | 2009-12-27 | Открытое акционерное общество "Волгабурмаш" (ОАО "Волгабурмаш") | Drilling bit with polycrystalline diamond elements |
| CN201288509Y (en) * | 2008-11-03 | 2009-08-12 | 上海中曼金刚石钻头有限公司 | Oriented PDC drill with great controllability |
| CN102678056A (en) * | 2012-06-04 | 2012-09-19 | 刘新军 | Cold-fixed PDC (polycrystalline diamond compact) bit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464598A (en) * | 2015-11-30 | 2016-04-06 | 无锡中地钻探装备有限公司 | Full-section compact bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201705226U (en) | Integral type double-shoulder sulfur resistant drill rod | |
| CN206035394U (en) | Geological drill pipe | |
| CN103031847B (en) | Reducing overlap joint combined type orifice pipe grouting method | |
| CN203175449U (en) | Double-acting coring reverse circulation salvage basket | |
| CN103527100A (en) | Method for connecting polycrystalline diamond compact (PDC) bit sintering body with connector body | |
| CN202689965U (en) | Air-tight seal oil pipe threaded joint applied to high-temperature and high-pressure gas well | |
| CN201751527U (en) | Hermetic seal drill pipe joint with good torsion resistance performance | |
| CN104131785A (en) | Single-cone PDC concentric RWD drill bit | |
| CN103410145B (en) | Disposable anchor cable bit and construction method thereof | |
| CN202706935U (en) | Drill rod structure with reinforced end part | |
| CN201620773U (en) | Novel welding type drill collar | |
| CN204082011U (en) | The concentric reaming while drilling drill bit of single cone PDC | |
| CN204851144U (en) | A high -efficient fishing tap for fishing operation in pit | |
| CN203403831U (en) | Direct-connecting oil casing pipe threaded connector | |
| CN103089164A (en) | Torsion-resistant connecting structure of joint of drill pipe | |
| CN201339781Y (en) | Tube socket welding structure on pipeline or equipment | |
| CN103089161B (en) | The solid plumber's skill of the anti-slip casting of a kind of elevation bore | |
| CN205955665U (en) | Ocean is bored and is adopted special screw thread female joint of riser pipe | |
| CN204113130U (en) | A kind of super strong type Rhizoma Sparganii circular arc drilling rod | |
| CN203097740U (en) | Transition belt drill rod with thickened curved surface | |
| CN204511320U (en) | A kind of science deep-well, ultradeep well probing drilling rod | |
| CN201401634Y (en) | Composite lower sealing head of gas storage well sleeve | |
| CN202544785U (en) | Falling-off prevention integrated window opening tool | |
| CN202325287U (en) | Anti-torsion drill stem joint connection structure | |
| CN209653983U (en) | The high pressure resistant more sealing drilling rods of trigone circular arc fin integral type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |