CN202990851U - Screw type high-frequency percussion drilling tool - Google Patents

Screw type high-frequency percussion drilling tool Download PDF

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Publication number
CN202990851U
CN202990851U CN 201220571468 CN201220571468U CN202990851U CN 202990851 U CN202990851 U CN 202990851U CN 201220571468 CN201220571468 CN 201220571468 CN 201220571468 U CN201220571468 U CN 201220571468U CN 202990851 U CN202990851 U CN 202990851U
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CN
China
Prior art keywords
drilling
hydraulic pressure
outside
screw
piston
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
CN 201220571468
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Chinese (zh)
Inventor
朱益辉
刘禹铭
于小龙
李士敏
王晓松
姚伟达
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC Energy Technology and Services Ltd
Supervision and Technology Branch of CNOOC Energy Technology and Services 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.)
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Publication date
Application filed by China National Offshore Oil Corp CNOOC, CNOOC Energy Technology and Services Ltd, Supervision and Technology Branch of CNOOC Energy Technology and Services Ltd filed Critical China National Offshore Oil Corp CNOOC
Priority to CN 201220571468 priority Critical patent/CN202990851U/en
Application granted granted Critical
Publication of CN202990851U publication Critical patent/CN202990851U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a screw type high-frequency percussion drilling tool which is divided into two portions, namely a screw assembly and an axial vibration assembly. A screw drilling rig is connected at the upper end of the drilling tool, and a drilling head is connected at the lower end of the drilling tool. Drilling pressure is transmitted to a hydraulic hammer through a transmission shaft and a bellevill spring of the screw drilling rig and then is transmitted to the drilling head through the hydraulic hammer. Torque is transmitted to the drilling head through a spline joint arranged on the transmission shaft and a spline arranged on the hydraulic hammer. A casing of the screw drilling rig is connected with a sealing tube of a vibrator. A piston is fixedly connected with the hydraulic hammer, and a water hole of the hydraulic hammer is provided with a throttling valve. A flow adjustment plate is connected with an outer tube. Holes are respectively formed on the piston and the flow adjustment plate, the piston and the flow adjustment plate can rotate relatively to form the switching function of a runner to generate fluctuating pressure, and accordingly the hydraulic hammer generates high-frequency vibrating impact force. The screw type high-frequency percussion drilling tool has the advantages of being capable of removing axial moving, transverse vortex motion and stick slip in the drilling process, improving rotating speed of drilling machines and prolonging service life of the drilling rig.

Description

Screw high-frequency percussion drilling tool
Technical field
The utility model belongs to oil/gas drilling completion technique field, relates in particular to a kind of screw high-frequency percussion drilling tool.
Background technology
Along with domestic and international petroleum exploration and development paces are more and more faster, the newly developed area exploration constantly enlarges, and drilling depth constantly increases, and stratum age is more and more remote, bores the chance hard formation more and more.Single rotary drilling technology commonly used is owing to having random packing under gravity, laterally whirling motion, vertically beat, turning round to problems such as stick-slips and cause that the drilling machinery rotating speed is low, drilling depth is little, drilling tool produces stress fatigue in advance, can not satisfy the drilling well timeliness requirement on the poor stratum of drillabilitys such as the staggered stratum of soft or hard, hard formation in deep formation.The drilling technology that spins is on the basis of conventional rotary drilling, with the boring method that impacts and rotation combines.Its principle is that in drilling process, the high-frequency percussion power that the impactor that is driven by drilling fluid produces constantly imposes on drill bit, thereby realizes the percussion drilling while rotating at impactor of drill bit upper end installation.The drilling technology that spins is compared with other drilling technologies, better utilized solid rock fragility large, and shear strength is lower, not impact-resistant weakness, and only need apply less the pressure of the drill and come the pressure holding drill bit when drilling well, therefore can effectively solve some problems in competent bed and some complex formation drilling process.
The utility model content
The utility model provides a kind of screw high-frequency percussion drilling tool for solving the technical problem that exists in known technology, this instrument can be eliminated the axial runout of drilling process, horizontal whirling motion and stick-slip phenomenon, improve the drilling machinery rotating speed, extend drilling tool application life.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of screw high-frequency percussion drilling tool comprises top connection and the splined shaft that is connected with the drill motor power transmission shaft,
the top connection lower outside sealing drum that has been threaded, the lower end of top connection and sealing shroud adjacency, be provided with splined shaft in sealing shroud, the lower end of splined shaft is connected by spline with the hydraulic pressure hammer body, the middle part of splined shaft is provided with the outer shaft shoulder, be coated with successively back-up ring below the outer shaft shoulder from top to bottom, upper dish spring, pre-load nut, adjust spacer, wherein pre-load nut is threaded with the threaded portion of splined shaft, hydraulic pressure hammer body middle part radially is provided with the first through hole of up/down perforation, the outside, middle part of hydraulic pressure hammer body is provided with external thread part, the top of external thread part is provided with the first radial hole, also be set with empty boasting on hydraulic pressure hammer body the first radial hole, the external thread part piston that has been threaded, piston is provided with the second axial through hole, be set with successively the Flow-rate adjustment dish on the hydraulic pressure hammer body from top to bottom below piston, pushing sleeve, packing ring, lower dish spring, lower adjusting pad, lower adjusting pad is against on the interior shaft shoulder of sealing drum, the Flow-rate adjustment dish is provided with the position third through-hole corresponding with the second through hole, the Flow-rate adjustment dish is connected with sealing drum to move axially circumferentially fixing mode, the position between Flow-rate adjustment dish and pushing sleeve of hydraulic pressure hammer body is provided with the second radial hole, be set with lower empty boasting on the hydraulic pressure hammer body, between the first radial hole and the second radial hole, choke valve is installed on the first through hole of hydraulic pressure hammer body,
Described lower empty boasting is inboard, described pushing sleeve is inboard, described piston is inboard, described upper empty boasting is inboard and the sealing of hydraulic pressure hammer body, sealing shroud inboard with splined shaft sealing, the described lower empty boasting outside, the described pushing sleeve outside, the described Flow-rate adjustment dish outside, the described piston outside, the described upper empty boasting outside, the described sealing shroud outside, the described top connection outside and sealing drum sealing.
The utility model can also adopt following technical scheme:
The outside of described Flow-rate adjustment dish is provided with the stroke groove, and sealing drum is provided with screw, and described screw inserts in the stroke groove, and the length of described stroke groove is greater than the diameter of screw.
Advantage and the good effect that the utlity model has are:
The utility model is divided into the two large divisions with instrument after having adopted above technical scheme, and a part is the screw rod assembly, and another part is the axial vibration assembly.Termination helicoid hydraulic motor on this instrument, lower termination drill bit.The pressure of the drill by power transmission shaft, the butterfly spring of helicoid hydraulic motor pass to the hydraulic pressure hammer body, the hydraulic pressure hammer body passes to drill bit again.Moment of torsion is to pass to drill bit by the spline joint on screw drill transmission shaft and the spline on hydraulic hammer.The helicoid hydraulic motor overcoat is connected with the sealing drum of vibrator.Piston is fixedly connected with hydraulic hammer, and the hydrophthalmia of hydraulic hammer is equipped with choke valve.The Flow-rate adjustment dish is connected with urceolus.Have the hole on piston and Flow-rate adjustment dish, both can relatively rotate, and form the on-off action of runner, produce surge pressure, make hydraulic hammer produce the impact force of dither.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1, hydraulic pressure hammer body; 2, lower empty boasting; 3, filling oil plug; 4, lower adjusting pad; 5, lower butterfly spring; 6, packing ring; 7, pushing sleeve; 8, Flow-rate adjustment dish; 9, screw; 10, piston; 11, choke valve; 12, sealing drum; 13, upper empty boasting; 14, adjust spacer; 15, pre-load nut; 16, upper butterfly spring; 17, upper back-up ring; 18, sealing shroud; 19, oil is stifled; 20, splined shaft; 21, top connection.
The specific embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
see also Fig. 1, a kind of screw high-frequency percussion drilling tool, comprise top connection 21 and the splined shaft 20 that is connected with the drill motor power transmission shaft, the top connection lower outside sealing drum 12 that has been threaded, the lower end of top connection and sealing shroud 18 adjacency, sealing shroud is provided with oil stifled 19, be set with splined shaft in sealing shroud, the lower end of splined shaft is connected by spline with hydraulic pressure hammer body 1, the middle part of splined shaft is provided with the outer shaft shoulder, be coated with successively back-up ring 17 below the outer shaft shoulder from top to bottom, upper dish spring 16, pre-load nut 13, adjust spacer 14, wherein pre-load nut is threaded with the threaded portion of splined shaft, hydraulic pressure hammer body middle part radially is provided with the first through hole of up/down perforation, the outside, middle part of hydraulic pressure hammer body is provided with external thread part, the top of external thread part is provided with the first radial hole, also be set with empty boasting 13 on hydraulic pressure hammer body the first radial hole, the external thread part piston 10 that has been threaded, piston is provided with the second axial through hole, be set with successively Flow-rate adjustment dish 8 on the hydraulic pressure hammer body from top to bottom below piston, pushing sleeve 7, packing ring 6, lower dish spring 5, lower adjusting pad 4, lower adjusting pad is against on the interior shaft shoulder of sealing drum, should be provided with filling oil plug 3 by the interior shaft shoulder, the Flow-rate adjustment dish is provided with the position third through-hole corresponding with the second through hole, the Flow-rate adjustment dish is connected with sealing drum to move axially circumferentially fixing mode, the position between Flow-rate adjustment dish and pushing sleeve of hydraulic pressure hammer body is provided with the second radial hole, be set with lower empty boasting 2 on the hydraulic pressure hammer body, between the first radial hole and the second radial hole, choke valve 11 is installed on the first through hole of hydraulic pressure hammer body,
Described lower empty boasting is inboard, described pushing sleeve is inboard, described piston is inboard, described upper empty boasting is inboard and the sealing of hydraulic pressure hammer body, sealing shroud inboard with splined shaft sealing, the described lower empty boasting outside, the described pushing sleeve outside, the described Flow-rate adjustment dish outside, the described piston outside, the described upper empty boasting outside, the described sealing shroud outside, the described top connection outside and sealing drum sealing.
The outside of described Flow-rate adjustment dish is provided with the stroke groove, and sealing drum is provided with screw 9, and described screw inserts in the stroke groove, and the length of described stroke groove is greater than the diameter of screw.
Operating principle of the present utility model is:
During normal drilling well, instrument top connection 21 is connected to become integral body with helicoid hydraulic motor, and liquid hammer body 1 connects drill bit.The power transmission shaft of helicoid hydraulic motor transfers a torque to splined shaft 20, and splined shaft 20 is rotated, and splined shaft 20 drives hydraulic pressure hammer body 1 and rotates, thereby transfers a torque to drill bit.Meanwhile, because being threaded connection, piston 10 and hydraulic pressure hammer body 1 become one, hydraulic pressure hammer body 1 rotates piston 10 is rotated thereupon, owing between screw drill transmission shaft and overcoat, speed discrepancy being arranged, make between piston 10 and Flow-rate adjustment dish 8 and produce relative rotation, thereby make through hole and the through hole on Flow-rate adjustment dish 8 on piston 10 produce periodic the unlatching with closed, produce periodic pressure oscillation.Pressure oscillation acts on piston 10, and hydraulic pressure hammer body 1 is produced periodic axial force, and final axial force transmission produces axial impact to drill bit to the shaft bottom.
Specifically, when corresponding, the first through hole and the second through hole are communicated with when the first lead to the hole site on the second through hole on the Flow-rate adjustment dish and piston, and the hydraulic oil that is flowed out by the first radial hole can enter in pushing sleeve by the first through hole and the second through hole.Cavity indoor pressure on this moment between empty boasting, piston, hydraulic pressure hammer body is less, and the thrust that the kink end face is produced is also less.Specifically, when the second through hole on the Flow-rate adjustment dish and the first lead to the hole site on piston staggered, the first through hole and the second through hole were not communicated with, and the hydraulic oil that is flowed out by the first radial hole can not enter in pushing sleeve by the first through hole and the second through hole.Cavity indoor pressure on this moment between empty boasting, piston, hydraulic pressure hammer body is larger, and the thrust that the kink end face is produced is also larger.
Although the above is described preferred embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, within these all belong to protection domain of the present utility model.

Claims (2)

1. a screw high-frequency percussion drilling tool, comprise top connection and the splined shaft that is connected with the drill motor power transmission shaft, it is characterized in that:
the top connection lower outside sealing drum that has been threaded, the lower end of top connection and sealing shroud adjacency, be provided with splined shaft in sealing shroud, the lower end of splined shaft is connected by spline with the hydraulic pressure hammer body, the middle part of splined shaft is provided with the outer shaft shoulder, be coated with successively back-up ring below the outer shaft shoulder from top to bottom, upper dish spring, pre-load nut, adjust spacer, wherein pre-load nut is threaded with the threaded portion of splined shaft, hydraulic pressure hammer body middle part radially is provided with the first through hole of up/down perforation, the outside, middle part of hydraulic pressure hammer body is provided with external thread part, the top of external thread part is provided with the first radial hole, also be set with empty boasting on hydraulic pressure hammer body the first radial hole, the external thread part piston that has been threaded, piston is provided with the second axial through hole, be set with successively the Flow-rate adjustment dish on the hydraulic pressure hammer body from top to bottom below piston, pushing sleeve, packing ring, lower dish spring, lower adjusting pad, lower adjusting pad is against on the interior shaft shoulder of sealing drum, the Flow-rate adjustment dish is provided with the position third through-hole corresponding with the second through hole, the Flow-rate adjustment dish is connected with sealing drum to move axially circumferentially fixing mode, the position between Flow-rate adjustment dish and pushing sleeve of hydraulic pressure hammer body is provided with the second radial hole, be set with lower empty boasting on the hydraulic pressure hammer body, between the first radial hole and the second radial hole, choke valve is installed on the first through hole of hydraulic pressure hammer body,
Described lower empty boasting is inboard, described pushing sleeve is inboard, described piston is inboard, described upper empty boasting is inboard and the sealing of hydraulic pressure hammer body, sealing shroud inboard with splined shaft sealing, the described lower empty boasting outside, the described pushing sleeve outside, the described Flow-rate adjustment dish outside, the described piston outside, the described upper empty boasting outside, the described sealing shroud outside, the described top connection outside and sealing drum sealing.
2. screw high-frequency percussion drilling tool according to claim 1, it is characterized in that: the outside of described Flow-rate adjustment dish is provided with the stroke groove, and sealing drum is provided with screw, and described screw inserts in the stroke groove, and the length of described stroke groove is greater than the diameter of screw.
CN 201220571468 2012-11-01 2012-11-01 Screw type high-frequency percussion drilling tool Expired - Fee Related CN202990851U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220571468 CN202990851U (en) 2012-11-01 2012-11-01 Screw type high-frequency percussion drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220571468 CN202990851U (en) 2012-11-01 2012-11-01 Screw type high-frequency percussion drilling tool

Publications (1)

Publication Number Publication Date
CN202990851U true CN202990851U (en) 2013-06-12

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Country Status (1)

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CN (1) CN202990851U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321569A (en) * 2013-06-25 2013-09-25 中国海洋石油总公司 Cam type high-frequency percussion well drilling tool
CN105422005A (en) * 2015-11-12 2016-03-23 中国石油大学(北京) Well drilling method and device through hydraulic power and disc spring coupling driving and axial vibration
CN105604489A (en) * 2016-01-26 2016-05-25 于世江 Hydraulic high-frequency positive and negative percussion bit energy generator and application method
CN106930687A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Fluid power hits the step-by-step movement broken rock device that shakes
CN106930685A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Concentric friction speed directional well drilling device in the same direction
CN106930684A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Planet milling formula broken rock device
CN107366513A (en) * 2016-05-13 2017-11-21 中国石油化工股份有限公司 A kind of pipe string of oil-water well axial vibration absorber

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321569A (en) * 2013-06-25 2013-09-25 中国海洋石油总公司 Cam type high-frequency percussion well drilling tool
CN105422005A (en) * 2015-11-12 2016-03-23 中国石油大学(北京) Well drilling method and device through hydraulic power and disc spring coupling driving and axial vibration
CN106930687A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Fluid power hits the step-by-step movement broken rock device that shakes
CN106930685A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Concentric friction speed directional well drilling device in the same direction
CN106930684A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Planet milling formula broken rock device
CN105604489A (en) * 2016-01-26 2016-05-25 于世江 Hydraulic high-frequency positive and negative percussion bit energy generator and application method
CN107366513A (en) * 2016-05-13 2017-11-21 中国石油化工股份有限公司 A kind of pipe string of oil-water well axial vibration absorber

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20161228

Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6

Patentee after: CNOOC Energy Technology Co., Ltd.

Address before: 100010 Dongcheng District, Chaoyangmen, North Street, No. 25, ocean Oil Mansion, No.

Patentee before: China National Offshore Oil Corporation

Patentee before: CNOOC Energy Technology Co., Ltd.

Patentee before: CNOOC Energy Technology & Sevices-Supervision &Technology Co.

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

Granted publication date: 20130612

Termination date: 20181101