CN2931757Y - Double dual-flow channel drill bit for exploratory boring bergol - Google Patents

Double dual-flow channel drill bit for exploratory boring bergol Download PDF

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Publication number
CN2931757Y
CN2931757Y CN 200620121107 CN200620121107U CN2931757Y CN 2931757 Y CN2931757 Y CN 2931757Y CN 200620121107 CN200620121107 CN 200620121107 CN 200620121107 U CN200620121107 U CN 200620121107U CN 2931757 Y CN2931757 Y CN 2931757Y
Authority
CN
China
Prior art keywords
drill bit
mud pipe
mud
double
pipe
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 - Lifetime
Application number
CN 200620121107
Other languages
Chinese (zh)
Inventor
杜向东
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.)
CHENGDU BEST DIAMOND BIT CO LTD
Original Assignee
CHENGDU BEST DIAMOND BIT 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 CHENGDU BEST DIAMOND BIT CO LTD filed Critical CHENGDU BEST DIAMOND BIT CO LTD
Priority to CN 200620121107 priority Critical patent/CN2931757Y/en
Application granted granted Critical
Publication of CN2931757Y publication Critical patent/CN2931757Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a double-flow passage drill bit for petroleum drilling, which is the double-flow passage drill bit particularly designed for hydraulic rock blasting as a mating used drill bit. The utility model is characterized in that another mud pipe is arranged within the mud pipe, wherein, the bottom of the second mud pipe is arranged on the bottom of the mud pipe, and a shoring support is arranged between the top of the second mud and a pipe wall of the mud pipe. A counter bore with which the bottom of the second mud pipe is assembled is arranged in the center of the bottom mud pipe, and the bottom of the counter bore is equipped with a nozzle. A shoring support is homogeneously arranged along the spaced radial of the mud pipe. The double flow passage drill bit executed by this design is characterized by terse and reasonable structure, stable connection, and convenient manufacture with cheap cost. Not only does this program provide beneficial support for the hydraulic rock blasting technology, but also if this program is applied to a PDC carcass drill bit, a reasonable and effective new drill bit can be provided for petroleum drilling exploration and manufacturing.

Description

The dual channel drill bit that drills for oil
Technical field
The utility model relates to the drill bit that drills for oil, especially about a kind of dual channel drill bit that drills for oil.
Background technology
Along with the development of drilling technology, the hydraulic drilling technology has become a developing direction in current drilling well field, and has entered the field trial stage and be used for the probing and the exploitation of oil.The water conservancy breaking technique for rock is by the broken rock drilling tool of the water conservancy of special use mud (drilling fluid) to be split into two strands of mud of high and low pressure, high-pressure slurry sprays with high speed through special nozzle, low pressure mud is still by original hydraulic fill pipeline ejection in the bit body, two strands of mud converge at the drilling cuttings place of drill bit, high-pressure slurry stream helps broken rock, and the low pressure slurry flows is used to clean the cutting edge of cooling drill bit.The water conservancy breaking technique for rock mainly uses the PDC matrix drill bits, yet, having only a hydraulic fill pipeline in the PDC matrix drill bits that uses at present, mud flows into from pipeline---take landwaste and cooling cleaning cutting edge out of.So the drill bit of existing structure can not use the specific drilling tool with hydraulic drilling effect, also not seeing has and the matching used dual channel drill bit of hydraulic drilling specific drilling tool.
The utility model content
The purpose of this utility model is to disclose a kind of technical scheme of dual channel drill bit for the hydraulic drilling specific drilling tool provides matching used drill bit.This scheme specifically describes as follows: a kind of dual channel drill bit that drills for oil, comprise bit body, hydraulic fill pipeline and nozzle, it is characterized in that also being provided with in the hydraulic fill pipeline second mud tube, the bottom of second mud tube connects the bottom that places hydraulic fill pipeline, is provided with support between the top of second mud tube and the hydraulic fill pipeline tube wall; Hydraulic fill pipeline bottom centre is provided with counterbore, and the second mud tube bottom is press-fit in the counterbore, and the bottom of counterbore is shaped on nozzle; Support evenly is provided with along the spaced radial of hydraulic fill pipeline, and the number of support is no less than 3; The number of nozzle is 1.
Press the dual channel drill bit that this programme is implemented, have characteristics rational in infrastructure, succinct, that connection is reliable and easy to process, with low cost, not only provide useful technical support for Application and Development hydraulic drilling technology, and with this programme success be applied to the PDC matrix drill bits, for oil drilling production provides a kind of effective new drill rationally.
Description of drawings
Fig. 1 is the vertical section schematic diagram of a kind of PDC matrix drill bits of the utility model structure;
Fig. 2 is that the A-A of Fig. 1 is to schematic diagram;
Fig. 3 is the vertical section schematic diagram of former PDC matrix drill bits structure.
The specific embodiment
Be further described in detail in conjunction with the accompanying drawings.The center of bit body 1 is shaped on hydraulic fill pipeline 11, the bottom of this pipeline is provided with 5 low pressure swivel 110, the bottom centre of hydraulic fill pipeline 11 is shaped on counterbore 12, the bottom of counterbore 12 has 1 nozzle 120, be press-fitted second mud tube---high-pressure slurry pipe 3 in the counterbore 12, for guarantee the high-voltage high-speed slurry flows pipe in 3 steady conveying and prevent the vibration of this pipe, and damage drill bit because of concussion, the key of this programme is to be provided with on the top of pipe 3 to support 31, this support 31 is between the tube wall of hydraulic fill pipeline 11 and pipe 3 and along radially evenly being set to of mud tube 11 3 (as shown in Figure 2), so, promptly strengthened the supporting role of this pipe from the two ends of high-voltage tube 3, effectively prevented because of the destruction that produced of concussion, and preferably resolved high-voltage tube 3 and be connected the too high technical barrier of precision because of assembling with bit body 1 to drill bit.The utility model provides strong technical support and has obtained useful actual production effect for successful Application hydraulic drilling technology.
Fig. 3 is the vertical section schematic diagram of former PDC matrix drill bits structure, and 2 is the wing of drill bit, and 21 is artificial diamond compact---PDC.

Claims (4)

1, a kind of dual channel drill bit that drills for oil, comprise bit body, hydraulic fill pipeline and nozzle, it is characterized in that also being provided with second mud tube in the hydraulic fill pipeline, the bottom of second mud tube connects the bottom that places hydraulic fill pipeline, is provided with support between the top of second mud tube and the hydraulic fill pipeline tube wall.
2, by the described dual channel drill bit that drills for oil of claim 1, it is characterized in that hydraulic fill pipeline bottom centre is provided with counterbore, the second mud tube bottom is press-fit in the counterbore, and the bottom of counterbore is shaped on nozzle.
3, by the described dual channel drill bit that drills for oil of claim 1, it is characterized in that the spaced radial that supports along hydraulic fill pipeline evenly is provided with, the number of support is no less than 3.
4, by the dual channel drill bit of the described probing of claim 2 road oil, the number that it is characterized in that nozzle is 1.
CN 200620121107 2006-07-11 2006-07-11 Double dual-flow channel drill bit for exploratory boring bergol Expired - Lifetime CN2931757Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620121107 CN2931757Y (en) 2006-07-11 2006-07-11 Double dual-flow channel drill bit for exploratory boring bergol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620121107 CN2931757Y (en) 2006-07-11 2006-07-11 Double dual-flow channel drill bit for exploratory boring bergol

Publications (1)

Publication Number Publication Date
CN2931757Y true CN2931757Y (en) 2007-08-08

Family

ID=38348257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620121107 Expired - Lifetime CN2931757Y (en) 2006-07-11 2006-07-11 Double dual-flow channel drill bit for exploratory boring bergol

Country Status (1)

Country Link
CN (1) CN2931757Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383735A (en) * 2011-06-23 2012-03-21 中国石油大学(华东) Ultrahigh-pressure drillbit runner system for underground booster and a construction method thereof
CN104481412A (en) * 2014-12-11 2015-04-01 中国石油天然气集团公司 Well drilling device
CN108571289A (en) * 2017-03-13 2018-09-25 中国石油化工股份有限公司 A kind of drilling rig and method
EP2623707B1 (en) * 2011-04-21 2019-10-09 China University of Petroleum (East China) Method and system for improving drilling speed by using drill string vibration

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2623707B1 (en) * 2011-04-21 2019-10-09 China University of Petroleum (East China) Method and system for improving drilling speed by using drill string vibration
CN102383735A (en) * 2011-06-23 2012-03-21 中国石油大学(华东) Ultrahigh-pressure drillbit runner system for underground booster and a construction method thereof
CN102383735B (en) * 2011-06-23 2013-12-25 中国石油大学(华东) Ultrahigh-pressure drillbit runner system for underground booster and construction method thereof
CN104481412A (en) * 2014-12-11 2015-04-01 中国石油天然气集团公司 Well drilling device
CN108571289A (en) * 2017-03-13 2018-09-25 中国石油化工股份有限公司 A kind of drilling rig and method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: 610041 Sichuan high tech Zone, Chengdu Province Park, No. two South Road, No. 789

Patentee after: Chengdu Best Diamond Bit Co.,Ltd.

Address before: Guixi Industrial Park Chengdu city Sichuan province 610023

Patentee before: Chengdu Best Diamond Bit Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20070808

EXPY Termination of patent right or utility model