CN107435520A - A kind of hydroscillator of runner power - Google Patents

A kind of hydroscillator of runner power Download PDF

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Publication number
CN107435520A
CN107435520A CN201710814084.6A CN201710814084A CN107435520A CN 107435520 A CN107435520 A CN 107435520A CN 201710814084 A CN201710814084 A CN 201710814084A CN 107435520 A CN107435520 A CN 107435520A
Authority
CN
China
Prior art keywords
runner
contact
hydroscillator
shell
house
Prior art date
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Pending
Application number
CN201710814084.6A
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Chinese (zh)
Inventor
夏成宇
钱利勤
黄剑
刘先明
李旭
华勇
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Yangtze University
Original Assignee
Yangtze University
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 Yangtze University filed Critical Yangtze University
Priority to CN201710814084.6A priority Critical patent/CN107435520A/en
Publication of CN107435520A publication Critical patent/CN107435520A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/24Drilling using vibrating or oscillating means, e.g. out-of-balance masses

Abstract

The present invention relates to a kind of hydroscillator of runner power;Belong to oil-gas mining drilling tool technical field.It is made up of splined shaft, upper shell, lower house, transition joint and lower contact, is provided with splined shaft by adapter sleeve in upper shell, one end of upper shell is provided with lower house by transition joint screw thread, and the ends screw of lower house is provided with lower contact;Runner is provided with by upper alignment bearing in lower house between lower contact and transition joint, the lower house of runner side is interior to be provided with rotary valve by lower alignment bearing;Rotary valve is threadedly coupled with runner.The hydroscillator has the characteristics of simple and compact for structure, movable part is few, and cost is cheap.With the rotation of runner in the course of work, enable area of passage periodically-varied, thus intermittent pressure pulse is produced, so as to drive vibration pipe nipple to produce periodicity axial vibration, thus the static friction of drill string and the borehole wall will be changed into dynamic friction, frictional resistance can be effectively reduced, improves drilling efficiency, reduces drilling cost.

Description

A kind of hydroscillator of runner power
Technical field
The present invention relates to a kind of hydroscillator of runner power;Belong to oil-gas mining drilling tool technical field.
Background technology
In the complex structural wells such as horizontal well, high angle hole and horizontal branch well, with the increase for entering well depth, drill string with Frictional force between the borehole wall gradually increases, and the pressure of the drill can not effectively be transferred to drill bit, cause rate of penetration to decline, and drill string with When wall friction power is sufficiently large, easily triggers drill string torsional deformation and induce accident in well.In the drilling process of such well, bore Tool increased in the larger well section of hole curvature, or in long horizontal sections, the borehole wall by drill string pressure, the frictional force between drill string and the borehole wall with Increase, drill string backing pressure phenomenon is serious, can not effectively apply the pressure of the drill, have a strong impact on rate of penetration.Hydroscillator can make brill Post produces the periodic vibration of certain frequency and amplitude, the static friction of drill string and the borehole wall in drilling process is become dynamic friction, Frictional resistance is reduced, can effectively mitigate backing pressure phenomenon.Reduce the frictional resistance during being sent into, improve rate of penetration, increasing Add horizontal drilling depth and had a clear superiority in terms of shortening the drilling cycle.But because the structure of existing hydroscillator limits, Rotating speed and the ratio between vibration frequency are non-adjustable, can not produce high-frequency vibration to meet the requirement of drilling well, and power section uses more Turbine or screw rod, complicated, cost is higher.
The content of the invention
It is an object of the invention to:There is provided it is a kind of static friction in drilling process can be changed into dynamic friction, high frequency can be produced Axial impact;Effectively to reduce frictional resistance, the hydroscillator of the runner power of rate of penetration is improved.
The technical scheme is that:
A kind of hydroscillator of runner power;It is made up of splined shaft, upper shell, lower house, transition joint and lower contact, its It is characterised by:Splined shaft is provided with by adapter sleeve in upper shell, one end of upper shell is provided with down by transition joint screw thread Housing, the ends screw of lower house are provided with lower contact;Pass through upper righting axle in lower house between lower contact and transition joint Hold and runner is installed, rotary valve is provided with by lower alignment bearing in the lower house of runner side;Rotary valve is threadedly coupled with runner.
Feather key is evenly equipped with described splined shaft circumference, adapter sleeve inwall corresponding with feather key is provided with keyway, splined shaft It is slidably connected between adapter sleeve by the cooperation of feather key and keyway.
Be respectively arranged with spacing shoulder in described upper enclosure inner wall and the splined shaft circumference of feather key one end, spacing shoulder it Between splined shaft on disc spring is housed.
Described upper shell is threadedly coupled with adapter sleeve.
Splined shaft ends screw in described upper shell is provided with ballpoint dropping prevention, ballpoint dropping prevention and the boss in upper enclosure inner wall Contact connection.
It is provided with lower contact centre bore in described lower contact, is provided with the lower contact on the outside of lower contact centre bore multiple Intercommunicating pore, intercommunicating pore connect with lower contact centre bore.
Described runner is cross structure, is provided with liquid flow hole on runner, is evenly equipped with the runner on the outside of liquid flow hole a plurality of Helical flow path, helical flow path are connected with liquid flow hole, and sealing ring is provided with the runner of helical flow path side.
Screw thread is provided with locating piece on described runner, and ball bearing is provided between locating piece and transition joint.
Described rotary valve is discoid, and rotary valve is provided with runner hole corresponding with intercommunicating pore.
The beneficial effects of the present invention are:
The hydraulic oscillation of the runner power has the characteristics of simple and compact for structure, movable part is few, and cost is cheap.In the course of work with The rotation of runner, enables area of passage periodically-varied, thus produces intermittent pressure pulse, so as to drive vibration pipe nipple production Raw periodicity axial vibration, thus will be changed into dynamic friction by the static friction of drill string and the borehole wall, can effectively reduce frictional resistance, improve drilling well Efficiency, reduce drilling cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is mplifying structure schematic diagram at the A in Fig. 1;
Fig. 3 is the cross section structure schematic diagram of the runner of the present invention;
Fig. 4 is the cross section structure schematic diagram of the rotary valve of the present invention.
In figure:1st, splined shaft, 2, upper shell, 3, lower house, 4, transition joint, 5, lower contact, 6, adapter sleeve, 7, disc spring, 8th, ballpoint dropping prevention, 9, upper alignment bearing, 10, runner, 11, liquid flow hole, 12, helical flow path, 13, lower alignment bearing, 14, rotary valve, 15, Lower contact centre bore, 16, intercommunicating pore, 17, runner hole, 18, locating piece, 19, ball bearing.
Embodiment
The hydroscillator of the runner power is by splined shaft 1, upper shell 2, lower house 3, transition joint 4 and the structure of lower contact 5 Into upper shell 2 is interior to be provided with splined shaft 1 by adapter sleeve 6, and upper shell 2 is threadedly coupled with adapter sleeve 6;On the circumference of splined shaft 1 Feather key is furnished with, the inwall of adapter sleeve 6 corresponding with feather key is provided with keyway, passes through feather key and keyway between splined shaft 1 and adapter sleeve 6 Cooperation be slidably connected.
Spacing shoulder is respectively arranged with the inwall of upper shell 2 and the circumference of the splined shaft of feather key one end 1, between spacing shoulder Disc spring 7 is housed on splined shaft 1.The ends screw of splined shaft 1 in upper shell 2 is provided with ballpoint dropping prevention 8, ballpoint dropping prevention 8 with upper shell 2 Boss contact connection on wall, the purpose of ballpoint dropping prevention 8 is to prevent splined shaft 1 from skidding off.
One end of upper shell 1 is provided with lower house 3 by the screw thread of transition joint 4, and the ends screw of lower house 3 is provided with down Joint 5;Lower contact centre bore 15 is provided with lower contact 5, multiple companies are provided with the lower contact 5 in the outside of lower contact centre bore 15 Through hole 16, intercommunicating pore 16 connect with lower contact centre bore 15.
Runner 10 is provided with by upper alignment bearing 9 in lower house 3 between lower contact 5 and transition joint 4, runner 10 is Cross structure, liquid flow hole 11 is provided with runner 10, a plurality of helical flow path 12, spiral shell are evenly equipped with the runner 10 in the outside of liquid flow hole 11 Eddy flow road 12 is connected with liquid flow hole 11, and sealing ring is provided with the runner 10 of the side of helical flow path 12, to prevent from boring at work Well liquid flows back.
Rotary valve 14 is provided with by lower alignment bearing 13 in the lower house 3 of the side of runner 10;Rotary valve 14 and the screw thread of runner 10 Connection.Rotary valve 14 is discoid, and rotary valve 14 is provided with runner hole 17 corresponding with intercommunicating pore 16.
The threaded one end of runner 10 is provided with locating piece 18, and ball bearing is provided between locating piece 18 and transition joint 4 19。
The hydroscillator of the runner power forms power sub by splined shaft 1, upper shell 2, adapter sleeve 6, disc spring 7, by Lower house 3, lower contact 5, rotary valve 14 and runner 10 form vibration pipe nipple.During work, drilling fluid is entered by the centre bore of splined shaft 1 Runner 10, the lower end closed of liquid flow hole 11 of runner 10, drilling fluid enter runner 10 with by the helical flow path 12 on runner 10 Gap between housing 3, and form impact, so as to promote runner 10 to rotate, because the bottom of runner 10 is threadedly coupled with rotary valve 14, Rotary valve 14 rotates with runner 10.Because rotary valve 14 forms sealing to the lower contact centre bore 15 of lower contact 5;Drilling fluid is forced by turning The runner hole 17 of valve 14 enters the intercommunicating pore 16 of lower contact 5, with the rotation of runner 10, thus makes rotary valve 14 to the shape of intercommunicating pore 16 Opened and closed into periodic, so that area of passage periodically-varied, produces simple harmonic quantity pressure pulse, drive vibration pipe nipple to produce the cycle Property axial vibration, at the same time, simple harmonic quantity pressure wave is delivered to butterfly spring 7, drives adapter sleeve 6 and upper shell 2 in axial generation Simple harmonic oscillation;Thus the static friction of drill string and the borehole wall is changed into dynamic friction, can effectively reduces frictional resistance, improve drilling efficiency, reduced Drilling cost.
The hydroscillator has the advantages of simple and compact, movable part is few, and cost is cheap.And by adjusting rotary valve 14 The quantity of intercommunicating pore 16 on runner hole 17 and lower contact 5;The ratio of rotating speed and vibration frequency can be adjusted, to adapt to different wells Lower operating mode.

Claims (9)

  1. A kind of 1. hydroscillator of runner power;It is by splined shaft(1), upper shell(2), lower house(3), transition joint(4) And lower contact(5)Form, it is characterised in that:Upper shell(2)Inside pass through adapter sleeve(6)Splined shaft is installed(1), upper shell(2) One end pass through transition joint(4)Screw thread is provided with lower house(3), lower house(3)Ends screw lower contact is installed(5); Lower contact(5)With transition joint(4)Between lower house(3)It is interior to pass through upper alignment bearing(9)Runner is installed(10), runner (10)The lower house of side(3)It is interior to pass through lower alignment bearing(13)Rotary valve is installed(14);Rotary valve(14)With runner(10)Screw thread Connection.
  2. A kind of 2. hydroscillator of runner power according to claim 1;It is characterized in that:Described splined shaft(1) Feather key is evenly equipped with circumference, adapter sleeve corresponding with feather key(6)Inwall is provided with keyway, splined shaft(1)With adapter sleeve(6)Between It is slidably connected by the cooperation of feather key and keyway.
  3. A kind of 3. hydroscillator of runner power according to claim 1;It is characterized in that:Described upper shell(2) Inwall and the splined shaft of feather key one end(1)It is respectively arranged with spacing shoulder on circumference, is equipped with the splined shaft between spacing shoulder Disc spring(7).
  4. A kind of 4. hydroscillator of runner power according to claim 1;It is characterized in that:Described upper shell(2) With adapter sleeve(6)Threaded connection.
  5. A kind of 5. hydroscillator of runner power according to claim 1;It is characterized in that:Described upper shell(2) Interior splined shaft(1)Ends screw is provided with ballpoint dropping prevention(8), ballpoint dropping prevention(8)With upper shell(2)Boss contact on inwall connects Connect.
  6. A kind of 6. hydroscillator of runner power according to claim 1;It is characterized in that:Described lower contact(5) On be provided with lower contact centre bore(15), lower contact centre bore(15)The lower contact in outside(5)On be provided with multiple intercommunicating pores (16), intercommunicating pore(16)With lower contact centre bore(15)Connection.
  7. A kind of 7. hydroscillator of runner power according to claim 1;It is characterized in that:Described runner(10)For Cross structure, runner(10)On be provided with liquid flow hole(11), liquid flow hole(11)The runner in outside(10)On be evenly equipped with a plurality of spiral Runner(12), helical flow path(12)With liquid flow hole(11)Connection, helical flow path(12)The runner of side(10)On be provided with sealing Circle.
  8. A kind of 8. hydroscillator of runner power according to claim 7;It is characterized in that:Described runner(10)On Screw thread is provided with locating piece(18), locating piece(18)With transition joint(4)Between be provided with ball bearing(19).
  9. A kind of 9. hydroscillator of runner power according to claim 1;It is characterized in that:Described rotary valve(14)For It is discoid, rotary valve(14)It is provided with and intercommunicating pore(16)Corresponding runner hole(17).
CN201710814084.6A 2017-09-11 2017-09-11 A kind of hydroscillator of runner power Pending CN107435520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710814084.6A CN107435520A (en) 2017-09-11 2017-09-11 A kind of hydroscillator of runner power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710814084.6A CN107435520A (en) 2017-09-11 2017-09-11 A kind of hydroscillator of runner power

Publications (1)

Publication Number Publication Date
CN107435520A true CN107435520A (en) 2017-12-05

Family

ID=60461965

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710814084.6A Pending CN107435520A (en) 2017-09-11 2017-09-11 A kind of hydroscillator of runner power

Country Status (1)

Country Link
CN (1) CN107435520A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905400A (en) * 2019-11-27 2020-03-24 中国石油大学(华东) Pulse weight-on-bit generator
CN112431568A (en) * 2020-11-24 2021-03-02 中国石油大学(北京) Bidirectional hydraulic oscillator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905400A (en) * 2019-11-27 2020-03-24 中国石油大学(华东) Pulse weight-on-bit generator
CN110905400B (en) * 2019-11-27 2021-09-03 中国石油大学(华东) Pulse weight-on-bit generator
CN112431568A (en) * 2020-11-24 2021-03-02 中国石油大学(北京) Bidirectional hydraulic oscillator
CN112431568B (en) * 2020-11-24 2021-11-26 中国石油大学(北京) Bidirectional hydraulic oscillator

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