CN201416393Y - High strength matrix diamond drill for oil drilling - Google Patents

High strength matrix diamond drill for oil drilling Download PDF

Info

Publication number
CN201416393Y
CN201416393Y CN2009203041648U CN200920304164U CN201416393Y CN 201416393 Y CN201416393 Y CN 201416393Y CN 2009203041648 U CN2009203041648 U CN 2009203041648U CN 200920304164 U CN200920304164 U CN 200920304164U CN 201416393 Y CN201416393 Y CN 201416393Y
Authority
CN
China
Prior art keywords
drill
steel
hole
core assembly
strength
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
Application number
CN2009203041648U
Other languages
Chinese (zh)
Inventor
王艳梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUHAN EASTAR TOOL Co Ltd
Original Assignee
WUHAN EASTAR TOOL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUHAN EASTAR TOOL Co Ltd filed Critical WUHAN EASTAR TOOL Co Ltd
Priority to CN2009203041648U priority Critical patent/CN201416393Y/en
Application granted granted Critical
Publication of CN201416393Y publication Critical patent/CN201416393Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a high strength matrix diamond drill for oil drilling, which is formed through welding a drill crown and an upper body of drill. The drill crown is obtained through sintering the matrix powder and a steel core assembly mainly. The drill crown is also provided with cutting teeth and a nozzle. The steel core assembly is obtained through welding a steel body and a steel scraper mainly. A plurality of through holes or blind holes are machined on the steel scraper so that the matrix body and the steel core assembly are connected to one member or the connecting strengthis increased thereby preventing layering and dropping-off of the drill matrix and the steel core assembly at the stressed state and greatly increasing the whole strength and toughness of the drill. Particularly to the deep chip groove dill, the strength of the drill can be better ensured, the possibility of scraper fracture is reduced, and the chip discharge efficiency is increased. At the state that the drilling safety is ensured, the drilling speed of the drill is further increased and a remarkable economic benefit is provided.

Description

Oil drilling high strength carcass diamond bit
Technical field
The utility model relates to the high strength carcass diamond bit that a kind of oil drilling is used.
Background technology
In recent years, diamond bit has obtained using widely in the oil drilling engineering.Along with the improvement of drilling technology, also require more and more faster to the rate of penetration of diamond bit.In order to adapt to the demand of the high drilling speed of drilling well, the chip area of diamond bit has the trend of progressively deepening, and the intensification of chip area has weakened the drill bit bulk strength, thereby causes the situation of the diamond bit breaking wing to happen occasionally.
Summary of the invention
In order to address the above problem, the utility model provides a kind of novel high strength carcass diamond bit, and it is low to solve existing drill bit intensity, the technical problem of easily broken wing.
For achieving the above object, the technical solution adopted in the utility model is: oil drilling high strength carcass diamond bit, mainly be welded to form by drill bit and drill bit upper body, this drill bit is mainly formed by carcass powder and steel core assembly sintering, also be provided with cutting teeth and nozzle on this drill bit, this steel core assembly mainly is welded by steel body and steel body scraper, it is characterized in that, this steel body scraper is provided with the sintering hole.
This sintering hole is through hole, blind hole or both combinations.
This sintering hole is a circular port.
The diameter of this circular port is greater than 1mm.
The diameter of this circular port is 10mm.
This sintering hole is the key-way shape hole, and the width in this key-way shape hole is greater than 1mm.
This sintering hole is the combination of key-way shape hole and circular port.
Except circular port and key-way shape hole, this sintering hole can also be the combination of other geometry.
The utility model beneficial effect that is produced of comparing with background technology is: it has overcome the deficiency of prior art, a kind of novel high strength carcass diamond bit is provided, it has characteristics such as intensity height, applied widely, rate of penetration height, and has effectively solved the problem of the drill bit breaking wing.
Description of drawings
Fig. 1 is a drill bit structural representation of not establishing the sintering hole;
Fig. 2 is the drill bit structural representation that the utility model is provided with the sintering hole;
Fig. 3 is a drill bit structure schematic diagram of establishing the sintering hole;
Fig. 4 is the three-dimensional structure schematic diagram of steel core assembly among Fig. 3;
Fig. 5 A, 5B are the steel body blade construction schematic diagrames of establishing the sintering hole.
Description of reference numerals
The 1-cutting teeth; The 2-nozzle; 3-carcass powder; 4-steel body scraper; 5-steel body; 6-steel core assembly; 7-drill bit upper body; The 8-circular port; 9-key-way shape hole.
The specific embodiment
For structure of the present utility model and characteristics can be understood better, also be elaborated in conjunction with the accompanying drawings below with reference to embodiment.
Fig. 1 is not for establishing the drill bit structural representation in sintering hole, as shown in Figure 1, high strength carcass diamond bit of the present utility model mainly is welded by 7 liang of big parts of drill bit and drill bit upper body, drill bit is mainly formed by steel core assembly 6 and carcass powder 3 sintering, also is provided with cutting teeth 1 and nozzle 2 on this drill bit.Steel core assembly 6 is welded by steel body 5 and steel body scraper 4.
As shown in Figure 2, for further improving the intensity of drill bit among Fig. 1, the utility model can be processed a plurality of sintering hole on steel body scraper 4, and this sintering hole can be through hole, blind hole or the two combination.Carcass powder 3 is filled in described through hole or the blind hole, and it is as a whole that carcass and steel core assembly are connected into, thereby guarantees bit matrix and steel core assembly under stress, and is not stratified, do not come off, and improved the bulk strength and the toughness of drill bit greatly.Especially for the dark chip area drill bit of understratum, can better guarantee the intensity of drill bit, reduce the possibility of disconnected scraper, improve chip removal efficient.Under the situation that guarantees drilling safety, further improve the speed that drill bit creeps into, remarkable economic efficiency is arranged.
Fig. 3 is a drill bit structure schematic diagram of establishing the sintering hole, and this drill bit is tipped drill upper body 7 and forming below the drill bit of Fig. 2.
Fig. 4 is the three-dimensional structure schematic diagram of the steel core assembly 6 of drill bit among Fig. 3, and steel core assembly 6 is welded by steel body 5 and steel body scraper 4.Be arranged with a plurality of sintering hole on the rigid body scraper 4, this sintering hole is a circular port 8, and this circular port 8 can be blind hole or through hole, and its diameter is greater than 1mm.Preferably, the diameter of this circular port 8 can be 10mm, makes carcass and steel core assembly connect into as a whole by this circular port 8.
Shown in Fig. 5 A, the utility model can be processed with a plurality of sintering hole on steel body scraper 4, this sintering hole is key-way shape hole 9, and the width in this key-way shape hole 9 is greater than 1mm, this key-way shape hole 9 can be blind hole or through hole, makes carcass and steel core assembly connect into as a whole by this key-way shape hole 9.
Shown in Fig. 5 B, the utility model can also process the combination in circular port 8 and key-way shape hole 9 on steel body scraper 4, to strengthen drill bit intensity.Except circular port 8 and key-way shape hole 9, this sintering hole can also be the combination of other geometry or geometry.
More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but all will fall within the claim restricted portion of the present utility model.

Claims (7)

1. an oil drilling is with high strength carcass diamond bit, mainly be welded to form by drill bit and drill bit upper body, this drill bit is mainly formed by carcass powder and steel core assembly sintering, also be provided with cutting teeth and nozzle on this drill bit, this steel core assembly mainly is welded by steel body and steel body scraper, it is characterized in that this steel body scraper is provided with the sintering hole.
2. oil drilling as claimed in claim 1 is characterized in that with high strength carcass diamond bit this sintering hole is through hole, blind hole or both combinations.
3. oil drilling as claimed in claim 1 is characterized in that with high strength carcass diamond bit this sintering hole is a circular port.
4. oil drilling as claimed in claim 3 is characterized in that with high strength carcass diamond bit the diameter of this circular port is greater than 1mm.
5. oil drilling as claimed in claim 4 is characterized in that with high strength carcass diamond bit the diameter of this circular port is 10mm.
6. oil drilling as claimed in claim 1 is characterized in that with high strength carcass diamond bit this sintering hole is the key-way shape hole, and the width in this key-way shape hole is greater than 1mm.
7. oil drilling as claimed in claim 1 is characterized in that with high strength carcass diamond bit this sintering hole is the combination of key-way shape hole and circular port.
CN2009203041648U 2009-06-09 2009-06-09 High strength matrix diamond drill for oil drilling Expired - Fee Related CN201416393Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203041648U CN201416393Y (en) 2009-06-09 2009-06-09 High strength matrix diamond drill for oil drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203041648U CN201416393Y (en) 2009-06-09 2009-06-09 High strength matrix diamond drill for oil drilling

Publications (1)

Publication Number Publication Date
CN201416393Y true CN201416393Y (en) 2010-03-03

Family

ID=41792809

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009203041648U Expired - Fee Related CN201416393Y (en) 2009-06-09 2009-06-09 High strength matrix diamond drill for oil drilling

Country Status (1)

Country Link
CN (1) CN201416393Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105849354A (en) * 2013-12-10 2016-08-10 哈里伯顿能源服务公司 Vented blank for producing a matrix bit body
CN109630027A (en) * 2017-10-06 2019-04-16 肯纳金属公司 Thin-walled earth-boring tools and its manufacturing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105849354A (en) * 2013-12-10 2016-08-10 哈里伯顿能源服务公司 Vented blank for producing a matrix bit body
CN105849354B (en) * 2013-12-10 2018-04-06 哈里伯顿能源服务公司 Manufacture the ventilation base substrate of matrix bit body
US10029300B2 (en) 2013-12-10 2018-07-24 Halliburton Energy Services, Inc. Vented blank for producing a matrix bit body
CN109630027A (en) * 2017-10-06 2019-04-16 肯纳金属公司 Thin-walled earth-boring tools and its manufacturing method

Similar Documents

Publication Publication Date Title
CN102071876A (en) Multistage reducing combined drilling tool
CN201416393Y (en) High strength matrix diamond drill for oil drilling
CN102086757A (en) Composite cutting drill
CN105804658A (en) Impact breaking type PDC bit
CN202125250U (en) Plug-in type anchor rod drill bit of diamond compact and connection sleeve of same
CN203584314U (en) Abrasive water jet rock breaking drill bit
CN202047753U (en) Hard alloy gear of drill for mining
CN103352660B (en) Half-funnel-type nozzle double-layer water channel diamond-impregnated bit
CN201448054U (en) Ladder type diamond cast rib coring bit
CN204899784U (en) Novel quick streamlined rock drilling bore bit
CN202023506U (en) Down-the-hole drill bit
CN104727752A (en) Polycrystalline diamond composite tooth and manufacturing method thereof as well as drill bit
CN104854299A (en) Rock bit tip and rock bit
CN201572947U (en) Drill bit
CN203452651U (en) Strong cone PDC (Polycrystalline Diamond Compact) vibration reduction acceleration drill bit
CN204984276U (en) From fast tooth that bores of combined machining sword of taking cutting angle
CN205314922U (en) Wing formula composite drill bit
CN202325302U (en) Drill rod special for wind power and mechanical cooperated slag discharge
CN204867560U (en) Novel cold shell auger head
CN202810668U (en) High-strength hard alloy anchor rod drill bit
CN2871843Y (en) Automatic spiral residue-extracting rotary hobbing cutter
CN203441375U (en) Improved petroleum and gas well drill bit
CN203383737U (en) Diamond-impregnated bit with half funnel-shaped water gap and double-layer water tank
CN211230249U (en) PDC drill bit for positioning anchor cable
CN203188952U (en) Special-effect grinding shoe

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100303

Termination date: 20170609

CF01 Termination of patent right due to non-payment of annual fee