CN208456540U - A kind of orientation uses hydraulic pulse generator - Google Patents
A kind of orientation uses hydraulic pulse generator Download PDFInfo
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- CN208456540U CN208456540U CN201820883916.XU CN201820883916U CN208456540U CN 208456540 U CN208456540 U CN 208456540U CN 201820883916 U CN201820883916 U CN 201820883916U CN 208456540 U CN208456540 U CN 208456540U
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- impeller shaft
- positive cover
- supporting positive
- valve disc
- duct
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Abstract
The utility model relates to a kind of orientation hydraulic pulse generators, top connection is screwed in cylinder upper end, lower contact is screwed in cylinder lower end, the upper end of upper pressing sleeve leans against below top connection in cylinder lumen, the lower end of upper pressing sleeve is pressed on supporting positive cover, upper supporting positive cover is supported in the top bar of cylinder, the upper end of impeller shaft is plugged in supporting positive cover, the lower end of impeller shaft is plugged in lower supporting positive cover, the upper end of lower supporting positive cover leans against the lower section of getting out of a predicament or an embarrassing situation of cylinder, the lower port of lower supporting positive cover is pressed in pushing and puts on, the bottom of lower pressing sleeve, which is pressed in, determines on valve disc, the lower end for determining valve disc is pressed in lower contact；The peripheral distribution of impeller shaft has helical blade, forms helicla flute between each helical blade；It is equipped with vertically communicated upper and lower supporting positive cover runner in upper and lower supporting positive cover, the central duct being mutually communicated and eccentric duct are equipped in impeller shaft, the lower end of impeller shaft is equipped with impeller shaft side runner；Determine valve disc and is equipped with eccentric duct.The impulse generator is highly-safe, and difficulty of processing is low, and pressure loss is low.
Description
Technical field
The utility model relates to a kind of oil drilling utensil, in particular to a kind of orientation hydraulic pulse generator belongs to
Technical field of oil drilling equipment.
Background technique
In extended reach well, horizontal well drilling, since hole angle is big, the overwhelming majority of big hole deviation well section drill string self weight is pressed to
The borehole wall, so can be larger by the met frictional resistance of tubing string between tubing string and wellbore, cause to drag pressure, torque increases, and is transmitted to drill bit
Bit pressure is discontinuous or limited, only relies on straight well section drilling tool weight and is difficult to be sent into, and tool-face is difficult to control, and bores up to horizontal section length
Limited and rate of penetration is lower.Underground vibrating antifriction tool, by generating vibration in the way of certain, vibration is introduced by fluid
In tubing string, the static friction factor of tubing string and borehole wall when slipping drilling can be made to be reduced to dynamic friction factor size using vibration, this
Sample can greatly reduce the frictional resistance of tubing string, reach and increase the available weight being transmitted on drill bit, improve rate of penetration and prolong
It stretches tubing string and enters the purpose of well location moves.
The water for NOV company of the U.S. research and development that document " area Chang Qingqi gas storage Y37-2H well long horizontal sections drilling technology " is related to
Forced oscillation device (Agitator) and Publication No. CN202689935U, CN205477369U, CN205297335U,
The Chinese patent applications document such as CN203669746U, CN102704842A, CN103410444A, CN106223889A discloses one
Kind drilling well hydroscillator, working principle is essentially identical, is to generate pressure pulse using the hydraulic impulse device of screw drive
Vibration generating mechanism is driven to generate vibration.Publication No. CN105089501A, CN205422538U, CN104895517A,
Hydroscillator disclosed in Chinese patent literature of CN204139968U etc. includes turbo-driven Hydrautic pulse generator.
Screw Hydrautic pulse generator is lacked because of the naturally occurring degumming risk of its screw motor, high temperature resistance difference etc.
Point, application range are affected.Presently disclosed turbine driven hydroscillator series of patents generallys use shortening
Turbodrill generates pressure pulse as power drive, and structure is complicated, and difficulty of processing is big, installation maintenance is inconvenient and operating pressure drop
It is high.
Utility model content
The purpose of this utility model is that overcoming problems of the prior art, a kind of orientation waterpower pulse is provided
Generator, highly-safe, processing, assembly, maintenance difficulties are low, and the pressure loss of tool is low.
In order to solve the above technical problems, a kind of orientation hydraulic pulse generator of the utility model, including top connection, cylinder
Body and lower contact, the lower end of the top connection are screwed in the upper port of the cylinder, and the upper end of the lower contact is screwed in institute
State in the lower port of cylinder, the centre bore of the top connection, cylinder and lower contact successively penetrates through, the inner cavity of the cylinder from upper and
Under be successively arranged pressing sleeve, upper supporting positive cover, impeller shaft, lower supporting positive cover, lower pressing sleeve and determine valve disc, the upper port of the upper pressing sleeve is supported
Below the lower port for leaning against the top connection, the lower port of the upper pressing sleeve is pressed in the upper port of the upper supporting positive cover, described
The lower end of upper supporting positive cover is supported in the top bar of the cylinder, and the upper end of the impeller shaft is plugged in the upper supporting positive cover
In heart hole, the lower end of the impeller shaft is plugged in the centre bore of the lower supporting positive cover, and the upper end of the lower supporting positive cover is resisted against
The lower section of getting out of a predicament or an embarrassing situation of the cylinder, the lower port of the lower supporting positive cover are pressed in the pushing and put on, the bottom pressure of the lower pressing sleeve
Determine on valve disc described, the lower end for determining valve disc is pressed in the upper port of the lower contact；The periphery of the impeller shaft is uniform
Helical blade is distributed with, forms multiple tracks helicla flute between each helical blade；It is equipped in the upper supporting positive cover vertically communicated
Upper supporting positive cover runner is equipped with vertically communicated lower supporting positive cover runner in the lower supporting positive cover；Along being axially arranged with for the impeller shaft
The impeller shaft central duct being mutually communicated and impeller shaft bias duct, impeller shaft bias duct are located at the lower half of impeller shaft
Portion, the lower circumferential wall of the impeller shaft are equipped with the impeller shaft side runner communicated with impeller shaft bias duct；It is described fixed
Valve disc determines valve disc bias duct equipped with eccentric.
Compared with the existing technology, the utility model achieves following the utility model has the advantages that the upper and lower ends of impeller shaft support respectively
In the centre bore of upper supporting positive cover and lower supporting positive cover, the top of helical blade and the inner wall clearance fit of cylinder, drilling fluid is from upper
After the centre bore outflow of pressing sleeve, a part is flowed into impeller shaft central duct, enters through impeller shaft bias duct and determines determining for valve disc
The outflow of valve disc bias duct, another part entered in the helicla flute of impeller shaft by upper supporting positive cover runner, then from lower supporting positive cover
Lower supporting positive cover runner outflow, enters in impeller shaft bias duct through impeller shaft side runner and converges；Under the driving of helical blade, leaf
The outlet of wheel shaft high speed rotation, impeller shaft bias duct ceaselessly rotates, and generates periodically with the entrance for determining valve disc bias duct
Staggeredly or be overlapped so that drilling fluid area of passage can generating period high frequency variation, and then generate pressure fluctuation, pass through pressure
The vibration generating tool that power pulsed drive is connected thereto portion generates axial cyclic and mildly vibrates, so that drill assembly generates axis
To wriggling, static friction is changed into dynamic friction, friction when reducing slipping drilling and rotary drilling between the borehole wall and drilling rod improves
Load transfer, improves rate of penetration and extended reach well, horizontal well extend ability, solves the problems, such as that tool-face is difficult to control.The work
Have the characteristics that using safe, long working life, destruction will not be generated to drill bit or other drilling tools.It can be by changing spiral
The quantity and helix angle of blade adjust the revolving speed of impeller shaft, can also pass through and change impeller shaft central duct and impeller shaft side
The area ratio of runner drives the mud flow rate of impeller shaft to adjust impeller shaft revolving speed to change.
It is described to determine valve disc bias duct and be located at the upper half for determining valve disc as the improvement of the utility model, it is described fixed
The lower half of valve disc be equipped with determine valve disc bias duct perforation determine valve disc central duct, the overcurrent for determining valve disc central duct
Area is greater than the area of passage for determining valve disc bias duct.Determine the central duct coaxial line of valve disc central duct and lower contact,
Be conducive to reduce and determining the pressure loss at valve disc.
The inner termination of the impeller shaft side runner tilts down as a further improvement of the utility model,.Be conducive to subtract
The flow resistance of drilling fluid on the outside of little impeller shaft.
The flow-passing surface of the upper supporting positive cover runner and the lower supporting positive cover runner as a further improvement of the utility model,
Product is equal with the area of passage of the helicla flute and impeller shaft side runner.It flows through and the drilling fluid of impeller shaft periphery is avoided to generate resistance
It is stagnant, lead to unnecessary pressure drop.
The cross-sectional shape of the helical blade is rectangle or trapezoidal as a further improvement of the utility model,.Spiral
Blade can be cylindrical screw blade either screw blades.
The helical blade surface of the impeller shaft is equipped with Nitrizing Treatment layer or hard as a further improvement of the utility model,
Matter alloy spraying coating.The erosive wear resistance that helical blade can be improved extends the service life of impeller shaft.
The impeller shaft central duct and described determine the upper of valve disc bias duct as a further improvement of the utility model,
Carboloy nozzle is inlaid at end entrance respectively.Because pressure pulse easily leads to water attack erosion attack, in the portion for being easiest to destroy
Position setting carboloy nozzle, can be improved the working life of tool.
Detailed description of the invention
Fig. 1 is the main view that the utility model orientation uses hydraulic pulse generator.
Fig. 2 is the perspective view of impeller shaft in Fig. 1.
In figure: 1. top connections；2. cylinder；Pressing sleeve on 3.；Supporting positive cover on 4.；The upper supporting positive cover runner of 4a.；5. impeller shaft；5a.
Helical blade；5b. helicla flute；5c. impeller shaft central duct；5d. impeller shaft bias duct；5e. impeller shaft side runner；It is helped under 6.
Positive set；Supporting positive cover runner under 6a.；7. lower pressing sleeve；8. determining valve disc；8a. determines valve disc bias duct；8b. determining valve disc central duct；9.
Lower contact.
Specific embodiment
As shown in Figures 1 and 2, the orientation hydraulic pulse generator of the utility model include top connection 1, cylinder 2 and under
Connector 9, the lower end of top connection 1 are screwed in the upper port of cylinder 2, and the upper end of lower contact 9 is screwed in the lower port of cylinder 2,
The centre bore of top connection 1, cylinder 2 and lower contact 9 successively penetrates through, the inner cavity of cylinder 2 be successively arranged from top to bottom pressing sleeve 3, on
Supporting positive cover 4, impeller shaft 5, lower supporting positive cover 6, lower pressing sleeve 7 and determine valve disc 8, the upper port of upper pressing sleeve 3 is resisted against the lower end of top connection 1
Below mouthful, the lower port of upper pressing sleeve 3 is pressed in the upper port of supporting positive cover 4, and the lower end of upper supporting positive cover 4 is supported on the upper of cylinder 2
On step, the upper end of impeller shaft 5 is plugged in the centre bore of supporting positive cover 4, and the lower end of impeller shaft 5 is plugged on lower supporting positive cover 6
In centre bore, the upper end of lower supporting positive cover 6 is resisted against the lower section of getting out of a predicament or an embarrassing situation of cylinder 2, and the lower port of lower supporting positive cover 6 is pressed in lower pressing sleeve 7
On, the bottom of lower pressing sleeve 7 is pressed in the lower end for determining to determine valve disc 8 on valve disc 8 and is pressed in the upper port of lower contact 9；Outside impeller shaft 5
It is evenly distributed with helical blade 5a week, forms multiple tracks helicla flute 5b between each helical blade 5a；It is equipped in upper supporting positive cover 4 and vertically passes through
Logical upper supporting positive cover runner 4a is equipped with vertically communicated lower supporting positive cover runner 6a in lower supporting positive cover 6；Axial direction along impeller shaft 5 is set
There are the impeller shaft central duct 5c being mutually communicated and impeller shaft bias duct 5d, impeller shaft bias duct 5d is located at impeller shaft 5
Lower half, the lower circumferential wall of impeller shaft 5 are equipped with the impeller shaft side runner 5e communicated with impeller shaft bias duct 5d；Determine valve disc
8 determine valve disc bias duct 8a equipped with eccentric.
Determine valve disc bias duct 8a and be located at the upper half for determining valve disc 8, the lower half for determining valve disc 8 is equipped with and determines valve disc eccentric orfice
Valve disc central duct 8b is determined in 8a perforation in road, and the area of passage for determining valve disc central duct 8b is greater than the mistake for determining valve disc bias duct 8a
Flow area.The central duct coaxial line for determining valve disc central duct 8b Yu lower contact 9 is conducive to reduce and is determining the pressure at valve disc 8
Loss.
The inner termination of impeller shaft side runner 5e tilts down, and is conducive to the flow resistance for reducing drilling fluid on the outside of impeller shaft.
The area of passage of upper supporting positive cover runner 4a and lower supporting positive cover runner 6a with helicla flute 5b and impeller shaft side runner 5e
Area of passage it is equal.It flows through and the drilling fluid of 5 periphery of impeller shaft is avoided to generate retardance, lead to unnecessary pressure drop.
The cross-sectional shape of helical blade 5a is rectangle or trapezoidal, and helical blade 5a can be cylindrical screw blade either
Screw blades.
The surface helical blade 5a of impeller shaft 5 is equipped with Nitrizing Treatment layer or Spray Coating Carbide, and helical-blade can be improved
The erosive wear resistance of piece 5a extends the service life of impeller shaft 5.
Impeller shaft central duct 5c and the upper end inlet for determining valve disc bias duct 8a are inlaid with carboloy nozzle respectively,
Because pressure pulse easily leads to water attack erosion attack, carboloy nozzle is set at the position for being easiest to destroy, tool can be improved
Working life.
The upper and lower ends of impeller shaft 5 are respectively supported in the centre bore of supporting positive cover 4 and lower supporting positive cover 6, helical blade 5a
Top and cylinder 2 inner wall clearance fit, drilling fluid from the centre bore of upper pressing sleeve 3 outflow after, a part flows into impeller shaft
In the 5c of heart duct, flowed out through impeller shaft bias duct 5d into the valve disc bias duct 8a that determines for determining valve disc 8, another part passes through upper
Supporting positive cover runner 4a enters in the helicla flute 5b of impeller shaft 5, then flows out from the lower supporting positive cover runner 6a of lower supporting positive cover 6, through impeller
Axis side runner 5e enters in impeller shaft bias duct 5d and converges；Under the driving of helical blade 5a, 5 high speed rotation of impeller shaft, leaf
The outlet of wheel shaft bias duct 5d ceaselessly rotates, with determine valve disc bias duct 8a entrance generate periodically staggeredly or again
It closes, so that the high frequency variation of drilling fluid area of passage meeting generating period, and then generate pressure fluctuation.
Vibration generating tool generation axial cyclic at an upper portion thereof is drivingly connected by pressure pulse mildly to vibrate, so that
Drill assembly generates axial wriggling, and static friction is changed into dynamic friction, the borehole wall and drilling rod when reducing slipping drilling and rotary drilling
Between friction, improve load transfer, improve rate of penetration and extended reach well, horizontal well extends ability, solve tool-face and be difficult to
The problem of control.The tool has the characteristics that using safe, long working life, will not generate destruction to drill bit or other drilling tools.
The revolving speed of impeller shaft 5 can be adjusted by changing quantity and the helix angle of helical blade 5a, can also passed through
Change the area ratio of impeller shaft central duct 5c and impeller shaft side runner 5e to change the mud flow rate of driving impeller shaft 5 to adjust
Whole 5 revolving speed of impeller shaft.
The foregoing is merely the preferable possible embodiments of the utility model, patent that is non-therefore limiting to the utility model
Protection scope.In addition to the implementation, the utility model can also have other embodiments.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, is all fallen in the protection scope of the requires of the utility model.Technology of the utility model without description is special
Sign can realize that details are not described herein by or using the prior art.
Claims (7)
1. a kind of orientation uses hydraulic pulse generator, including top connection, cylinder and lower contact, the lower end of the top connection to be screwed in
In the upper port of the cylinder, the upper end of the lower contact is screwed in the lower port of the cylinder, the top connection, cylinder and
The centre bore of lower contact successively penetrates through, it is characterised in that: the inner cavity of the cylinder is successively arranged pressing sleeve, upper righting from top to bottom
Set, impeller shaft, lower supporting positive cover, lower pressing sleeve and determine valve disc, the upper port of the upper pressing sleeve is resisted against the lower port of the top connection
Lower section, the lower port of the upper pressing sleeve are pressed in the upper port of the upper supporting positive cover, and the lower end of the upper supporting positive cover is supported on institute
It states in the top bar of cylinder, the upper end of the impeller shaft is plugged in the centre bore of the upper supporting positive cover, under the impeller shaft
End is plugged in the centre bore of the lower supporting positive cover, and the upper end of the lower supporting positive cover is resisted against the lower section of getting out of a predicament or an embarrassing situation of the cylinder,
The lower port of the lower supporting positive cover be pressed in it is described pushing put on, the bottom of the lower pressing sleeve be pressed in it is described determine on valve disc, it is described fixed
The lower end of valve disc is pressed in the upper port of the lower contact；The periphery of the impeller shaft is evenly distributed with helical blade, each described
Multiple tracks helicla flute is formed between helical blade；It is equipped with vertically communicated upper supporting positive cover runner in the upper supporting positive cover, is helped under described
Vertically communicated lower supporting positive cover runner is equipped in positive set；The impeller shaft centre bore being mutually communicated is axially arranged with along the impeller shaft
Road and impeller shaft bias duct, impeller shaft bias duct are located at the lower half of impeller shaft, the lower circumferential of the impeller shaft
Wall is equipped with the impeller shaft side runner communicated with impeller shaft bias duct；It is described to determine valve disc and be equipped with that eccentric to determine valve disc inclined
Heart duct.
2. orientation hydraulic pulse generator according to claim 1, it is characterised in that: described to determine valve disc bias duct position
In the upper half for determining valve disc, the lower half for determining valve disc be equipped with determine valve disc bias duct perforation determine valve disc centre bore
Road, the area of passage for determining valve disc central duct are greater than the area of passage for determining valve disc bias duct.
3. it is according to claim 1 orientation use hydraulic pulse generator, it is characterised in that: the impeller shaft side runner it is interior
End tilts down.
4. orientation hydraulic pulse generator according to claim 1, it is characterised in that: the upper supporting positive cover runner and institute
The area of passage for stating lower supporting positive cover runner is equal with the area of passage of the helicla flute and impeller shaft side runner.
5. orientation hydraulic pulse generator according to claim 1, it is characterised in that: the cross section of the helical blade
Shape is rectangle or trapezoidal.
6. orientation hydraulic pulse generator according to any one of claim 1 to 5, it is characterised in that: the impeller
Axial screw blade surface is equipped with Nitrizing Treatment layer or Spray Coating Carbide.
7. orientation hydraulic pulse generator according to any one of claim 1 to 5, it is characterised in that: the impeller
Axis center duct and the upper end inlet for determining valve disc bias duct are inlaid with carboloy nozzle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883916.XU CN208456540U (en) | 2018-06-08 | 2018-06-08 | A kind of orientation uses hydraulic pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883916.XU CN208456540U (en) | 2018-06-08 | 2018-06-08 | A kind of orientation uses hydraulic pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208456540U true CN208456540U (en) | 2019-02-01 |
Family
ID=65160500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820883916.XU Active CN208456540U (en) | 2018-06-08 | 2018-06-08 | A kind of orientation uses hydraulic pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208456540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042732A (en) * | 2020-01-15 | 2020-04-21 | 中国矿业大学 | High-voltage electric pulse drilling device and using method thereof |
| CN113027329A (en) * | 2021-04-30 | 2021-06-25 | 四川天源宏创科技有限公司 | Torque pulse and pressure pulse double-acting tool |
-
2018
- 2018-06-08 CN CN201820883916.XU patent/CN208456540U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042732A (en) * | 2020-01-15 | 2020-04-21 | 中国矿业大学 | High-voltage electric pulse drilling device and using method thereof |
| CN113027329A (en) * | 2021-04-30 | 2021-06-25 | 四川天源宏创科技有限公司 | Torque pulse and pressure pulse double-acting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210823 Address after: No.101 Gantang Road, Shaobo Town, Jiangdu District, Yangzhou City, Jiangsu Province Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC EAST CHINA PETROLEUM ENGINEERING Co.,Ltd. Address before: No.101 Gantang Road, Shaobo Town, Jiangdu District, Yangzhou City, Jiangsu Province Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC EAST CHINA PETROLEUM ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right |