CN107401383A - A kind of underground pressurizing device - Google Patents
A kind of underground pressurizing device Download PDFInfo
- Publication number
- CN107401383A CN107401383A CN201710786723.2A CN201710786723A CN107401383A CN 107401383 A CN107401383 A CN 107401383A CN 201710786723 A CN201710786723 A CN 201710786723A CN 107401383 A CN107401383 A CN 107401383A
- Authority
- CN
- China
- Prior art keywords
- outer barrel
- plunger
- pressurizing device
- discharge opeing
- feed liquor
- 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.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 5
- 230000001627 detrimental effect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003345 natural gas Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 18
- 239000012530 fluid Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of underground pressurizing device；Belong to oil, natural gas underground operation tool technical field.The device includes outer barrel, spline outer barrel, plunger outer barrel, drill bit, line shaft, cartridge filter and plunger, and the threaded one end of spline outer barrel is provided with outer barrel；The other end screw thread of spline outer barrel is provided with plunger outer barrel, and the ends screw of plunger outer barrel is provided with drill bit；Line shaft is movably installed with outer barrel, line shaft one end ends screw is provided with actuating cam；Inverted cam post is slidably fitted with by keyway in the spline outer barrel of actuating cam side, actuating cam contacts connection with inverted cam post；Plunger outer barrel is equipped with cartridge filter；Mutually it is threadedly coupled by transition joint between cartridge filter and inverted cam post.The apparatus structure is simple, easy for installation, solves that existing underground pressurizing device is complicated, manufacture difficulty is big, short life, and the problem of detrimental impact be present.Effectively increase the bulk life time of underground pressurizing device.
Description
Technical field
The present invention relates to a kind of underground pressurizing device；Belong to oil, natural gas underground operation tool technical field.
Background technology
Drilling well speed in the firm hard formation run into as deep-well, ultradeep well increase year by year in the ratio shared by oil field, during drilling well
The problem of degree significantly declines becomes increasingly conspicuous, and typical well instrument is difficult to reach construction requirement.Too low rate of penetration is to restrict
The main reason for rate of penetration.The developing into of ultra-high pressure water fluid jet auxiliary rock technology improve rate of penetration provide one it is new
Research direction.Last century mid-term, the U.S. just begin one's study jet drilling technology, attempt by improve bit nozzle jet velocity come
Rate of penetration is improved, and achieves corresponding achievement in research.Ultra-high pressure water fluid jet Aided Machine broken rock experienced three development altogether
Stage：Ground full supercharge, above ground portion supercharging and underground part supercharging, the mode of wherein ground supercharging need to change existing equipment,
Larger, system job insecurity is put into, or even serious potential safety hazard be present.And the mode of downhole pressure increasing only need to be above drill bit
Supercharging device is set up, it is easily manufactured without changing existing equipment, therefore as the emphasis studied now.
At present in underground pressurizing device, it is pressurized using pascal's principle, is promoted using water pressure big
Piston, big piston promote valve piston to realize to being pressurized with part drilling fluid again.This kind of supercharging device pressurized effect is good,
But have the disadvantage that：Booster runner is complex, and very big difficulty is caused to processing and installation；Supercharging device reversing machine
Structure short life and detrimental impact be present；The problems such as consumable accessory, short life be present in plunger mechanism junction.Thus, research and development one kind is changed
To mechanism structure is simple, pulse is steady, in the absence of detrimental impact, plunger mechanism connection is simple, firm, easy for installation, to improve
The supercharging device of life and reliability is our tasks urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to：There is provided a kind of simple in construction, easy for installation, pulse is steady, in the absence of detrimental impact, can
Service life and reliability are effectively improved, existing underground pressurizing device is complicated, manufacture difficulty is big, short life to solve, and
In the presence of the underground pressurizing device of harmful shock problem.
The technical scheme is that：
A kind of underground pressurizing device, including outer barrel, spline outer barrel, plunger outer barrel, drill bit, line shaft, cartridge filter and plunger, it is special
Sign is：The threaded one end of spline outer barrel is provided with outer barrel；The other end screw thread of spline outer barrel is provided with plunger outer barrel, outside plunger
The ends screw of cylinder is provided with drill bit；Line shaft is movably installed with outer barrel, line shaft one end ends screw is provided with actively convex
Wheel；Inverted cam post, actuating cam and inverted cam post are slidably fitted with by keyway in the spline outer barrel of actuating cam side
Contact connection；Plunger outer barrel is equipped with cartridge filter；Mutually it is threadedly coupled by transition joint between cartridge filter and inverted cam post；Cross
Inner convex platform is provided with the plunger outer barrel of filter cylinder side, centre bore one end of inner convex platform is equipped with plunger, one end of plunger and filtering
Cylinder threaded connection；The centre bore other end screw thread of inner convex platform is provided with discharge opeing valve seat；One end of discharge opeing valve seat is filled by mounting seat
There is connection flexible pipe, connection flexible pipe connects with the nozzle of drill bit；Screw thread is provided with discharge opeing plug on the discharge opeing valve seat of mounting seat side,
Discharge opeing valve element, discharge opeing valve element and row are equipped with by discharge opeing lead and spring on discharge opeing valve seat between discharge opeing plug and mounting seat
The contact connection of liquid plug.
Runner is provided between described discharge opeing valve element and mounting seat.
Screw thread is provided with feed liquor valve seat on plunger in described inner convex platform centre bore, feed liquor valve seat endoporus front end be equipped with into
Liquid plug, feed liquor spool is provided with by feed liquor lead and spring between feed liquor plug and feed liquor valve seat；Feed liquor spool is with entering
Liquid valve seat endoporus port contact connects.
Runner is provided with described feed liquor plug.Pacified on plunger in described inner convex platform centre bore by clamp nut
Equipped with seal.
Boss is provided with described spline outer tube inner wall, back-moving spring is housed on the inverted cam post of boss side.
Centre bore is respectively arranged with described line shaft and actuating cam.
Centre bore is provided with described inverted cam post, there is radial equipartition on the inverted cam post circumference of centre bore one end
Flowing hole, flowing hole connect with centre bore.
Described transition joint is made up of top connection and lower contact, and neck is provided with top connection, is provided with lower contact
Pass through the mutual clamping of cooperation of neck and dop between dop top connection and lower contact.
Axially symmetric shape is provided with liquid flow hole in described top connection and lower contact.
Screen cloth is set with described cartridge filter.
Described inner convex platform is provided circumferentially about inner convex platform liquid flow hole.
The beneficial effects of the invention are as follows：
The underground pressurizing device is simple in construction, easy for installation, caused by relatively existing fork type, pin type underground pressurizing device
Pulse is more stable.The inverted cam post of the underground pressurizing device is connected using spline with spline outer barrel, makes inverted cam post and flower
Key outer barrel rotating speed is identical, so that it has fixed speed discrepancy with actuating cam, to ensure actuating cam and inverted cam post
In the presence of relative rotation, so as to avoid the situation about can not be pressurized because occurring both geo-stationaries.The underground pressurizing device makes
Inverted cam post is resetted with back-moving spring, avoids actuating cam no-load running and actuating cam and inverted cam post
Situation about blocking.And mutually it is threadedly coupled by transition joint between cartridge filter and inverted cam post, it connects reliable, installation
Simplicity, solves that existing underground pressurizing device is complicated, manufacture difficulty is big, short life, and the problem of detrimental impact be present.Have
Effect improves the bulk life time of underground pressurizing device.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is enlarged diagram at the A in Fig. 1；
Fig. 3 is enlarged diagram at the B in Fig. 1；
Fig. 4 is enlarged diagram at the C in Fig. 1；
Fig. 5 is the structural representation of the top connection of the present invention；
Fig. 6 is the structural representation of the lower contact of the present invention.
In figure：1st, outer barrel, 2, spline outer barrel, 3, plunger outer barrel, 4, drill bit, 5, line shaft, 6, cartridge filter, 7, plunger, 8,
Actuating cam, 9, inverted cam post, 10, flowing hole, 11, back-moving spring, 12, screen cloth, 13, top connection, 14, lower contact, 15, card
Groove, 16, dop, 17, liquid flow hole, 18, inner convex platform, 19, discharge opeing valve seat, 20, mounting seat, 21, connection flexible pipe, 22, nozzle, 23,
Inner convex platform liquid flow hole, 24, discharge opeing plug, 25, spring, 26, discharge opeing valve element, 27, feed liquor valve seat, 28, feed liquor plug, 29, feed liquor
Valve element, 30, clamp nut, 31, seal.
Embodiment
The underground pressurizing device includes outer barrel 1, spline outer barrel 2, plunger outer barrel 3, drill bit 4, line shaft 5, cartridge filter 6 and post
Plug 7.The threaded one end of spline outer barrel 2 is provided with outer barrel 1；The other end screw thread of spline outer barrel 2 is provided with plunger outer barrel 3, plunger
The ends screw of outer barrel 3 is provided with drill bit 4；Line shaft 5 is movably installed with outer barrel 1, one end ends screw of line shaft 5 is provided with
Actuating cam 8；Centre bore is respectively arranged with line shaft 5 and actuating cam 8, for flowing through for drill-in fluid.The side of actuating cam 8
Spline outer barrel 2 in inverted cam post 9 is slidably fitted with by keyway, boss, boss side are provided with the inwall of spline outer barrel 2
Inverted cam post 9 on back-moving spring 11 is housed, to promote inverted cam post 9 to reset at work；Set on inverted cam post 9
There is a centre bore, radial equipartition has flowing hole 10, flowing hole 10 and inverted cam post on the circumference of inverted cam post 9 of centre bore one end
9 centre bore connection；Connection is contacted between actuating cam 8 and inverted cam post 9.The inverted cam post 9 of the underground pressurizing device
Set spline is engaged with spline set by spline outer barrel 2 so that inverted cam post 9 have with drill string identical rotating speed, so as to
Stable speed discrepancy is formed with actuating cam 8, is relatively rotated with ensureing that actuating cam 8 exists with inverted cam post 9, so as to avoid
The situation about can not be pressurized that occurs by both geo-stationaries.
Plunger outer barrel 3 is built with cartridge filter 6；Screen cloth 12 is set with cartridge filter 6.To filter drill-in fluid at work.Cross
Mutually it is threadedly coupled by transition joint between filter cylinder 6 and inverted cam post 9.
Transition joint is made up of top connection 13 and lower contact 14, and neck 15 is provided with top connection 13, is set in lower contact 14
It is equipped between the top connection 13 of dop 16 and lower contact 14 by the mutual clamping of cooperation of neck 15 and dop 16.Top connection 13 is with
Axially symmetric shape is provided with liquid flow hole 17 on joint 14.
Inner convex platform 18 is provided with the plunger outer barrel 3 of the side of cartridge filter 6, inner convex platform 18 is provided circumferentially about inner convex platform liquid stream
Hole 23.One end is equipped with plunger 7 in the centre bore of inner convex platform 18, and one end of plunger 7 extends to the center outer end of hole of inner convex platform 18 simultaneously
It is threadedly coupled with cartridge filter 6；Seal 31 is provided with by clamp nut 30 on plunger 7 in the centre bore of inner convex platform 18.
The centre bore other end screw thread of inner convex platform 18 is provided with discharge opeing valve seat 19；One end of discharge opeing valve seat 19 passes through mounting seat
20 connect equipped with connection flexible pipe 21, connection flexible pipe 21 with the nozzle 22 of drill bit 4.
Screw thread is provided with discharge opeing plug 24 on the discharge opeing valve seat 19 of the side of mounting seat 20, discharge opeing plug 24 and mounting seat 20 it
Between discharge opeing valve seat 19 on discharge opeing valve element 26 is equipped with by discharge opeing lead and spring 25, discharge opeing valve element 26 and discharge opeing plug 24
Endoporus port contact connects；Runner is provided between discharge opeing valve element 26 and mounting seat 20.
The centre bore port threads of plunger 7 in the centre bore of inner convex platform 18 are provided with feed liquor valve seat 27, the endoporus of feed liquor valve seat 27
Front end is equipped with feed liquor plug 28, and runner is provided with feed liquor plug 28.Pass through spring between feed liquor plug 28 and feed liquor valve seat 27
25 are provided with feed liquor spool 29；Feed liquor spool 29 is connected with the endoporus port contact of feed liquor valve seat 27.
When the underground pressurizing device works, line shaft 5 is connected with the screw motor of upper end and drives actuating cam 8 to rotate；
Due to contacting connection between actuating cam 8 and inverted cam post 9.In the rotation process of actuating cam 8, when the contrate wheel of actuating cam 8
When profile crest is rotated to crest by the contrate wheel profile trough of inverted cam post 9, inverted cam post 9 is forced lower motion vertically,
So as to drive cartridge filter 6 and the axle of plunger 7 to move downward by transition joint；Feed liquor spool 29 now is closed, discharge opeing valve element 26
Open, the drilling fluid in chamber between feed liquor valve seat 27 and discharge opeing valve seat 19 produces high pressure under the extruding of plunger 7, and high pressure is bored
Well liquid sprays through connecting flexible pipe 21 and nozzle 22, so as to aid in drill bit broken rock.
It is driven when the contrate wheel profile crest of actuating cam 8 is rotated to trough by the contrate wheel profile crest of inverted cam post 9
Cam post 9 is moved axially upward in the promotion lower edge of back-moving spring 11, so as to drive cartridge filter 6 and plunger 7 by transition joint
Moved on axial direction；It is achieved in the axially reciprocating of inverted cam post 9, intermediate connector, cartridge filter 6 and plunger 7；Plunger 7
Feed liquor spool 29 is opened when being moved on axial direction, and discharge opeing valve element 26 is closed, suction normal pressure drilling fluid in the cavity of plunger 7, in this way, one
Pressurization cycle is completed, and is prepared for pressurization cycle next time.
Specially：
Oppress the axle of inverted cam post 9 in the rotation process of actuating cam 8 to move downward, so as to drive cartridge filter 6 by transition joint
Moved downward with the axle of plunger 7；During this, drilling fluid by line shaft 5, actuating cam 8, inverted cam post 9 centre bore stream
Enter, the flowing hole 10 through inverted cam post 9 is flowed out, and then the liquid flow hole 17 through transition joint is entered in plunger outer barrel 3.
The inner convex platform liquid flow hole 23 on inner convex platform 18 that a drilling fluid part in plunger outer barrel 3 passes through plunger outer barrel 3 is straight
Connect and act on drill bit 4；For removing landwaste.The drilling fluid of another part enters filter cylinder 6 after the filtering of screen cloth 12.This process
In, when plunger 7 is run up, drilling fluid pressure effect under, and plunger 7 it is upward running force effect under, in filter cylinder 6
Drilling fluid feed liquor spool 29 is oppressed by the endoporus of the centre bore of plunger 7 and feed liquor valve seat 27, force feed liquor spool 29 with entering
The endoporus port of liquid valve seat 27 disengages, and drilling fluid is by the gap between feed liquor spool 29 and the endoporus port of feed liquor valve seat 27 and enters
Runner on liquid plug 28；Enter in the chamber between the termination of plunger 7 and discharge opeing valve seat 19.
When plunger 7 is run downwards, the drilling fluid between the termination of plunger 7 and discharge opeing valve seat 19 in chamber coordinates feed liquor spool
Spring 25 on 29, feed liquor spool 29 is reversely oppressed, feed liquor spool 29 is in close contact with the endoporus port of feed liquor valve seat 27, formed
Sealing.With the downward operation of plunger 7, the termination of plunger 7 forms extruding to the drilling fluid in chamber, thus makes the drilling well in chamber
Liquid produces high pressure, and cleaner for high-pressure drilling fluid oppresses discharge opeing valve element 26 by the endoporus of discharge opeing plug 24, forces discharge opeing valve element 26 and discharge opeing
The sealing state of plug 24 releases, and cleaner for high-pressure drilling fluid is by the gap between discharge opeing valve element 26 and discharge opeing plug 24 through connecting flexible pipe 21
Sprayed with nozzle 22, so as to aid in the broken rock of drill bit 4.So circulation, so that cleaner for high-pressure drilling fluid is periodically sprayed by nozzle 22.
Underground pressurizing device connection is reliable, simple installation, solves that existing underground pressurizing device is complicated, manufacture is difficult
Degree is big, short life, and the problem of detrimental impact be present.Effectively increase the bulk life time of underground pressurizing device.
Claims (10)
1. a kind of underground pressurizing device, including outer barrel（1）, spline outer barrel（2）, plunger outer barrel（3）, drill bit（4）, line shaft（5）、
Cartridge filter（6）And plunger（7）, it is characterised in that：Spline outer barrel（2）Threaded one end outer barrel is installed（1）；Spline outer barrel（2）
The other end screw thread plunger outer barrel is installed（3）, plunger outer barrel（3）Ends screw drill bit is installed（4）；Outer barrel（1）Interior work
It is dynamic that line shaft is installed（5）, line shaft（5）One end ends screw is provided with actuating cam（8）；Actuating cam（8）The flower of side
Key outer barrel（2）It is interior that inverted cam post is slidably fitted with by keyway（9）, actuating cam（8）With inverted cam post（9）Contact connects
Connect；Plunger outer barrel（3）Built with cartridge filter（6）；Cartridge filter（6）With inverted cam post（9）Between pass through the mutual spiral shell of transition joint
Line connects；Cartridge filter（6）The plunger outer barrel of side（3）Inside it is provided with inner convex platform（18）, inner convex platform（18）Centre bore in one end
Equipped with plunger（7）, plunger（7）One end and cartridge filter（6）Threaded connection；Inner convex platform（18）The centre bore other end screw thread installation
There is discharge opeing valve seat（19）；Discharge opeing valve seat（19）One end pass through mounting seat（20）Equipped with connection flexible pipe（21）, connect flexible pipe（21）
With drill bit（4）Nozzle（22）Connection；Mounting seat（20）The discharge opeing valve seat of side（19）Upper screw thread is provided with discharge opeing plug（24）,
Discharge opeing plug（24）With mounting seat（20）Between discharge opeing valve seat（19）It is upper to pass through discharge opeing lead and spring（25）Equipped with discharge opeing
Valve element（26）, discharge opeing valve element（26）With discharge opeing plug（24）Contact connection.
A kind of 2. underground pressurizing device according to claim 1, it is characterised in that：Described discharge opeing valve element（26）With installation
Seat（20）Between be provided with runner.
A kind of 3. underground pressurizing device according to claim 1, it is characterised in that：Described inner convex platform（18）In centre bore
Plunger（7）Upper screw thread is provided with feed liquor valve seat（27）, feed liquor valve seat（27）Endoporus front end is equipped with feed liquor plug（28）, feed liquor blocks up
Head（28）With feed liquor valve seat（27）Between pass through feed liquor lead and spring（25）Feed liquor spool is installed（29）；Feed liquor spool
（29）With feed liquor valve seat（27）Endoporus port contact connects；Described inner convex platform（18）It is provided circumferentially about to have inner convex platform liquid flow hole
（23）.
A kind of 4. underground pressurizing device according to claim 3, it is characterised in that：Described feed liquor plug（28）Upper setting
There is runner；Inner convex platform（18）Plunger in centre bore（7）On pass through clamp nut（30）Seal is installed（31）.
A kind of 5. underground pressurizing device according to claim 1, it is characterised in that：Described spline outer barrel（2）On inwall
It is provided with boss, the inverted cam post of boss side（9）It is upper that back-moving spring is housed（11）.
A kind of 6. underground pressurizing device according to claim 1, it is characterised in that：Described line shaft（5）It is convex with active
Wheel（8）On be respectively arranged with centre bore.
A kind of 7. underground pressurizing device according to claim 1 or 5, it is characterised in that：Described inverted cam post（9）On
It is provided with centre bore, the inverted cam post of centre bore one end（9）Radial equipartition has flowing hole on circumference（10）, flowing hole（10）With
Centre bore connects.
A kind of 8. underground pressurizing device according to claim 1, it is characterised in that：Described transition joint is by top connection
（13）And lower contact（14）Form, top connection（13）On be provided with neck（15）, lower contact（14）On be provided with dop（16）；On
Joint（13）And lower contact（14）Between pass through neck（15）And dop（16）The mutual clamping of cooperation.
A kind of 9. underground pressurizing device according to claim 8, it is characterised in that：Described top connection（13）And lower contact
（14）Upper axially symmetric shape is provided with liquid flow hole（17）.
A kind of 10. underground pressurizing device according to claim 1, it is characterised in that：Described cartridge filter（6）On be set with
Screen cloth（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786723.2A CN107401383A (en) | 2017-09-04 | 2017-09-04 | A kind of underground pressurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786723.2A CN107401383A (en) | 2017-09-04 | 2017-09-04 | A kind of underground pressurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401383A true CN107401383A (en) | 2017-11-28 |
Family
ID=60397443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710786723.2A Pending CN107401383A (en) | 2017-09-04 | 2017-09-04 | A kind of underground pressurizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401383A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625784A (en) * | 2018-07-12 | 2018-10-09 | 长江大学 | A kind of hydraulic booster jet stream drilling tool |
| CN113250618A (en) * | 2021-05-21 | 2021-08-13 | 长江大学 | Screw rod switching-over formula booster in pit |
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| CN101403279A (en) * | 2008-11-21 | 2009-04-08 | 李洪敏 | Well bottom booster pump and its supercharging method |
| CN202056034U (en) * | 2011-03-03 | 2011-11-30 | 中国石油大学(华东) | Helical surface reversing screw rod motor pressure booster |
| CN102536121A (en) * | 2012-02-08 | 2012-07-04 | 中国石油大学(北京) | Pulse type underground pressurization jet flow drilling method and device |
| CN203257327U (en) * | 2013-07-12 | 2013-10-30 | 中国石油大学(华东) | Threaded rod reversing underground hydraulic pressurizing well drilling device |
| CN104141457A (en) * | 2013-05-07 | 2014-11-12 | 中国石油大学(华东) | Well drilling pressurizing speed-up device |
| CN106246106A (en) * | 2016-08-24 | 2016-12-21 | 中石化石油工程机械有限公司研究院 | A kind of pulsed hydraulic jet drilling tool |
| CN207111000U (en) * | 2017-09-04 | 2018-03-16 | 长江大学 | A kind of underground pressurizing device |
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2017
- 2017-09-04 CN CN201710786723.2A patent/CN107401383A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403279A (en) * | 2008-11-21 | 2009-04-08 | 李洪敏 | Well bottom booster pump and its supercharging method |
| CN202056034U (en) * | 2011-03-03 | 2011-11-30 | 中国石油大学(华东) | Helical surface reversing screw rod motor pressure booster |
| CN102536121A (en) * | 2012-02-08 | 2012-07-04 | 中国石油大学(北京) | Pulse type underground pressurization jet flow drilling method and device |
| CN104141457A (en) * | 2013-05-07 | 2014-11-12 | 中国石油大学(华东) | Well drilling pressurizing speed-up device |
| CN203257327U (en) * | 2013-07-12 | 2013-10-30 | 中国石油大学(华东) | Threaded rod reversing underground hydraulic pressurizing well drilling device |
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| CN207111000U (en) * | 2017-09-04 | 2018-03-16 | 长江大学 | A kind of underground pressurizing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625784A (en) * | 2018-07-12 | 2018-10-09 | 长江大学 | A kind of hydraulic booster jet stream drilling tool |
| CN108625784B (en) * | 2018-07-12 | 2023-08-22 | 长江大学 | Hydraulic pressurizing jet drilling tool |
| CN113250618A (en) * | 2021-05-21 | 2021-08-13 | 长江大学 | Screw rod switching-over formula booster in pit |
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Application publication date: 20171128 |