CN106639930A - Vortex generator - Google Patents
Vortex generator Download PDFInfo
- Publication number
- CN106639930A CN106639930A CN201611195790.9A CN201611195790A CN106639930A CN 106639930 A CN106639930 A CN 106639930A CN 201611195790 A CN201611195790 A CN 201611195790A CN 106639930 A CN106639930 A CN 106639930A
- Authority
- CN
- China
- Prior art keywords
- hole
- turbine
- vortex generator
- drilling rod
- shaped
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims abstract description 49
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 claims description 18
- 230000005484 gravity Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 23
- 230000000694 effects Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 206010043458 Thirst Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035922 thirst Effects 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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 invention provides a vortex generator, and belongs to the technical field of drilling. An upper joint comprises a drill pipe female box, an upper cylinder and an upper boss; upper spiral strips are uniformly arranged on the outer surface of the upper cylinder, the end face of the upper boss is axially provided with a plurality of upper overflowing holes, and the upper overflowing holes are communicated with an inner hole of the drill pipe female box; a lower joint comprises a lower boss, a lower cylinder and a drill pipe male box, a plurality of lower spiral strips are uniformly arranged on the outer surface of the lower cylinder, the end face of the lower boss is axially provided with a plurality of lower overflowing holes, and the overflowing holes are communicated with an inner hole of the drill pipe male box; the upper joint and the lower joint are connected through a center shaft, the center shaft is sleeved with a turbine, the upper boss and the lower boss are sleeved with two end openings of the turbine respectively, and a plurality of righting strips are arranged on the outer surface of the turbine; the end face of the turbine is axially provided with a plurality of through holes, and the upper ends and the lower ends of the through holes communicate with the upper overflowing holes and the lower overflowing holes respectively. Fluid flows through the turbine through holes through the upper overflowing holes to impact the turbine to enable the righting strips to rotate to scrape rock debris and then flows out through the lower overflowing holes.
Description
Technical field
The present invention relates to a kind of vortex generator, for destroying cutting bed, belongs to drilling technology field.
Background technology
In straight well drilling well, drilling cuttings is parallel with the direction that drilling fluid flows conversely, drilling fluid can in the direction that annular space sinks
Effectively landwaste taken to ground.But in High angle well section or net horizontal section drilling well, drilling cuttings hangs down under gravity
It is straight sink, the direction of the direction of sinking and drilling fluid flowing has certain angle even vertical, and drilling fluid can not effective handle
Landwaste takes ground to, and the landwaste of deposition forms a bed course in shaft bottom（Also known as cutting bed）, its produce frictional force hinder brill
Effective transmission of pressure, the pressure of the drill can add when serious, greatly reduces rate of penetration, or even causes lock of tool drilling, and has influence on
Cementing quality.Therefore, how to remove shaft bottom cutting bed and become drilling engineering technical staff and endeavour one of difficult problem for capturing.
At present, the cutting bed destructor of onsite application mainly has the subsidiary axial pulse destruction cutting bed of auxiliary pressurized device, people
Word groove cutting bed destructor, lotus petal type cutting bed destructor.The first cutting bed destructor advantage is that itself frictional resistance is little, work
Frequency is high, and auxiliary pressurized and Cutting Disposal are taken into account, and smooth outer surface is to Cutting Disposal when weak point is axially-movable
DeGrain, must pressurize to drill bit again when central shaft reaches range；Second and the third in drill string rotating
To Cutting Disposal have more significant effect, but when slipping drilling, due to cutting bed destructor it is longer, for control
The needs of wellbore quality processed, are often connected on cutting bed destructor above power drilling tool, drilling tool during drilling more than power drilling tool
Do not rotate, thus above-mentioned cutting bed destructor is also not rotate, and thus loses the effect of destruction cutting bed, and
Produce effective transmission that extra frictional resistance hinders the pressure of the drill.And Jing thirsts for having frequently with slipping drilling, very when beating lower curved section
A kind of good cutting bed destructor, but up to the present, the problems referred to above are not preferably solved yet.
The content of the invention
The purpose of the present invention is for above-mentioned the deficiencies in the prior art, to analyze underground working and various downhole tools
On the basis of, there is provided a kind of DVG, for destroying cutting bed.
The purpose of the present invention is achieved through the following technical solutions：Vortex generator, is characterized in that, including top connection,
Lower contact and turbine, the top connection includes drilling rod box, the upper cylinder at middle part, the convex platform of bottom on top, described
Drilling rod box is connected with drilling rod, and communicates therewith；The upper cylindrical outer surface is uniformly provided with some left-handed or dextrorotation upper spiral shell
Rotation bar；The convex platform end face axial is provided with some upper flowing holes, and upper flowing hole upper end upwardly extends and through upper cylinder, with
Drilling rod box endoporus is connected；
The lower contact includes the lower convex platform and mandrel, the lower cylinder at middle part, the drilling rod pin thread of bottom on top, and the drilling rod is public
Button is connected with drilling rod, and communicates therewith；The lower cylindrical outer surface is uniformly provided with some lower spiral bars, lower spiral bar and upper spiral shell
Rotation bar is oppositely oriented；Lower convex platform external diameter is identical with convex platform external diameter, and lower convex platform end face axial is provided with some lower flowing holes, the excessively stream
The lower end in hole extends downward and through lower cylinder, connects with drilling rod pin thread endoporus；
The top connection, lower contact are connected by mandrel, and the turbine center is provided with through hole, and is placed on mandrel by through hole；
The turbine two-port is respectively sleeved on upper and lower boss, and turbine outer surface is uniformly provided with some righting strips；The turbine end face axle
To some through holes are provided with, the through hole upper and lower end is communicated respectively with upper and lower flowing hole, and flowing hole flows through turbine through hole on fluid Jing,
Impulse turbine, rotates righting strip, so as to scraping landwaste, then flows out from lower flowing hole.
The righting strip is vertical righting strip.
The righting strip middle part is provided with T-shaped hole, and T-shaped telescopic block is laid in hole, and T-shaped hole coordinates with the flexible block gap of T-shaped.
The T-shaped hole is made up of axial hole, radial hole, and the T-shaped telescopic block is by axial limiting block, radial direction scraping block structure
Into axial limiting block is placed in axial hole, and radial direction scraping block is placed in radial hole, and the depth of axial hole is more than axial limiting block
Thickness；
When righting strip is in turbine lower section, corresponding T-shaped telescopic block is stretched out outside T-shaped hole, i.e., under centrifugal force and Action of Gravity Field
The landwaste in radial direction scraping block scraping shaft bottom, when righting strip is in turbine top, corresponding T-shaped telescopic block is then in retraction T-shaped hole.
Dynamic fitted seal is respectively adopted between the turbine two ends and upper and lower boss.
The lower convex platform end face center is provided with screwed hole, for connecting with mandrel.
The upper and lower boss external diameter is respectively smaller than the external diameter of upper and lower cylinder.
The turbine two ends are connected respectively by upper bearing (metal), lower bearing with upper and lower boss.
The upper flowing hole is oblique straight hole, and the lower flowing hole is straight hole.
During slipping drilling, the upper flowing hole that drilling fluid passes through top connection（Oblique straight hole）, impulse turbine blade, drive
Turbine rotates, T-slot of the turbine lower section near shaft bottom（Hole）Interior（T-shaped）Telescopic block is just stretched in the presence of centrifugal force and deadweight
Out, the landwaste in scraping shaft bottom, and be in the telescopic block above turbine and then retract T-slot（Hole）It is interior, it is to avoid because of the contact borehole wall
Produce frictional force.
If rotary drilling, the spiral bar of upper and lower joint and the spiral bar of turbine（Righting strip）Will be from shaft bottom scraping rock
Bits, at the same on the liquid that returns enter the helicla flute of lower contact（The gap descended between spiral bar）, the helicla flute of Jing turbines（Help
Gap between positive bar）Afterwards again from the reciprocal helicla flute of top connection（Go up the gap between spiral bar）Flow out, so as in whirlpool
Vortex is formed in the middle of flow-generator, the destruction of cutting bed is exacerbated.
Due to vortex generator it is shorter（Simple structure, do not take up space）, affect little to measuring direction of deflection, therefore it can connect
Below power drilling tool, to obtain more preferable Cutting Disposal effect.Again due to pressure damage when drilling fluid flows through vortex generator
Consumption is little, so can access in drill string medial section, effect is more preferable.
In sum, either rotary drilling or slipping drilling, vortex generator can preferable Cutting Disposal.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of righting strip and T-shaped hole in the present invention；
Fig. 3 is the structural representation of T-shaped telescopic block in the present invention；
In figure：1 top connection, 2 lower contacts, 3 turbines, 4 drilling rod boxes, cylinder on 5,6 convex platforms, spiral bar on 7, excessively stream on 8
Hole, 9 lower convex platforms, 10 times cylinders, 11 drilling rod pin threads, 12 times spiral bars, 13 times flowing holes, 14 mandrels, 15 righting strips, 16 lead to
Hole, 17 T-shaped holes, 18 T-shaped telescopic blocks, 19 axial holes, 20 radial holes, 21 axial limiting blocks, 22 radial direction scraping blocks, axle on 23
Hold, 24 lower bearings.
Specific embodiment
As shown in figure 1, vortex generator is made up of three parts, top connection 1, lower contact 2 and turbine 3.Top connection it is upper
Hold as drilling rod box 4, in the middle of it（Upper cylinder 5）Outer surface has some left-handed or dextrorotation upper spiral bar 7, is below external diameter
It is slightly less than the convex platform 6 of spiral bar root external diameter（I.e. convex platform external diameter is less than upper cylinder external diameter）.
The centre of convex platform is a mandrel（Central shaft 14）, the box of upper end is connected with drilling rod, if having below box
Dry upper flowing hole 8（Oblique straight hole）Following step surface is led to, the fluid of process can be with impulse turbine blade（Righting strip 15）.
The top of lower contact is lower convex platform 9, and the boss external diameter is identical with the external diameter of convex platform 6, if lower convex platform end face is provided with
Dry lower flowing hole 13（Straight hole）, connect with the through hole 16 of turbine on lower flowing hole, it is lower to connect with the endoporus of drilling rod pin thread.Lower convex platform
Centre be provided with screwed hole, for connecting with central shaft.
Lower cylinder 10 in the middle part of lower contact, its outer surface carry the lower spiral bar 12 oppositely oriented with top connection, most under
Portion is drilling rod pin thread, for being connected with drilling rod.
The center of turbine carries through hole, is enclosed within mandrel（Central shaft）On, outer surface has some vertical righting strips 15, righting
The centre of bar is provided with T-shaped hole 17, and T-shaped telescopic block 18 is laid in hole, and the hole at turbine two ends is respectively fitted over top connection lower end and connects with
On the boss of head upper end, using dynamic fitted seal.
T-shaped hole is made up of axial hole 19, radial hole 20, and T-shaped telescopic block is by axial limiting block 21, the structure of radial direction scraping block 22
Into axial limiting block is placed in axial hole, and radial direction scraping block is placed in radial hole, and the depth of axial hole is more than axial limiting block
Thickness.
Flowing hole flows through turbine through hole on fluid Jing, and impulse turbine rotates righting strip, so as to scraping landwaste, then from
Lower flowing hole flows out（Tiltedly straight hole current out can rotate for turbine and provide an impulsive force, and current flow through turbine through hole, from straight
Hole is flowed out, and straight hole can reduce resistance to water-flow）.When righting strip is in turbine lower section, corresponding T-shaped telescopic block in centrifugal force and
Under Action of Gravity Field, stretch out outside T-shaped hole, i.e. the landwaste in radial direction scraping block scraping shaft bottom, when righting strip is in turbine top, correspondence
T-shaped telescopic block then in retraction T-shaped hole.
In the present invention, the cavity of drilling fluid circulation is left in the middle of upper and lower joint, therefore, the present invention is not affecting spudder
On the basis of work, using the combination of upper and lower spiral bar, righting strip and telescopic block, cutting bed can be preferably destroyed, using effect
Fruit is more preferably.
Claims (9)
1. a kind of vortex generator, is characterized in that, including top connection（1）, lower contact（2）And turbine（3）, the top connection bag
Include the drilling rod box on top（4）, middle part upper cylinder（5）, bottom convex platform（6）, the drilling rod box is connected with drilling rod,
And communicate therewith；The upper cylindrical outer surface is uniformly provided with some left-handed or dextrorotation upper spiral bar（7）；The convex you
Face is axially arranged with some upper flowing holes（8）, upper flowing hole upper end upwardly extends and through upper cylinder, connects with drilling rod box endoporus
It is logical；
The lower contact includes the lower convex platform on top（9）And mandrel, the lower cylinder at middle part（10）, bottom drilling rod pin thread
（11）, the drilling rod pin thread is connected with drilling rod, and communicates therewith；The lower cylindrical outer surface is uniformly provided with some lower spiral bars
（12）, lower spiral bar is oppositely oriented with upper spiral bar；Lower convex platform external diameter is identical with convex platform external diameter, and lower convex platform end face axial is provided with
Some lower flowing holes（13）, the lower end of the flowing hole extends downward and through lower cylinder, connects with drilling rod pin thread endoporus；
The top connection, lower contact pass through mandrel（14）Connection, the turbine center is provided with through hole, and is placed on mandrel by through hole
On；The turbine two-port is respectively sleeved on upper and lower boss, and turbine outer surface is uniformly provided with some righting strips（15）；The whirlpool
Wheel end face axial is provided with some through holes（16）, the through hole upper and lower end communicates respectively with upper and lower flowing hole, flowing hole on fluid Jing
Turbine through hole is flowed through, impulse turbine rotates righting strip, so as to scraping landwaste, is then flowed out by lower flowing hole.
2. vortex generator according to claim 1, is characterized in that, the righting strip（15）For vertical righting strip.
3. vortex generator according to claim 1, is characterized in that, the righting strip（15）Middle part is provided with T-shaped hole（17）,
T-shaped telescopic block is laid in hole（18）, the flexible block gap of T-shaped hole and T-shaped coordinates.
4. vortex generator according to claim 3, is characterized in that, the T-shaped hole（17）By axial hole（19）, radial hole
（20）Constitute, the T-shaped telescopic block（18）By axial limiting block（21）, radial direction scraping block（22）Constitute, axial limiting block is placed in
In axial hole, radial direction scraping block is placed in radial hole, and the depth of axial hole is more than the thickness of axial limiting block；
When righting strip is in turbine lower section, corresponding T-shaped telescopic block is stretched out outside T-shaped hole, i.e., under centrifugal force and Action of Gravity Field
The landwaste in radial direction scraping block scraping shaft bottom, when righting strip is in turbine top, corresponding T-shaped telescopic block is then in retraction T-shaped hole.
5. vortex generator according to claim 1, is characterized in that, the turbine（3）Divide between two ends and upper and lower boss
Fitted seal Cai Yong not moved.
6. vortex generator according to claim 1, is characterized in that, the lower convex platform end face center is provided with screwed hole, use
In connecting with mandrel.
7. vortex generator according to claim 1, is characterized in that, the upper and lower boss external diameter is respectively smaller than upper and lower circle
The external diameter of cylinder.
8. vortex generator according to claim 1, is characterized in that, the turbine two ends pass through respectively upper bearing (metal)（23）、
Lower bearing（24）It is connected with upper and lower boss.
9. vortex generator according to claim 1, is characterized in that, the upper flowing hole be oblique straight hole, the lower excessively stream
Hole is straight hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611195790.9A CN106639930B (en) | 2016-12-22 | 2016-12-22 | Vortex generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611195790.9A CN106639930B (en) | 2016-12-22 | 2016-12-22 | Vortex generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106639930A true CN106639930A (en) | 2017-05-10 |
| CN106639930B CN106639930B (en) | 2022-11-15 |
Family
ID=58834593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611195790.9A Active CN106639930B (en) | 2016-12-22 | 2016-12-22 | Vortex generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639930B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469278A (en) * | 2019-08-09 | 2019-11-19 | 中国石油天然气股份有限公司 | A kind of cutting bed cleaning tool and application method |
| CN115726738A (en) * | 2021-08-25 | 2023-03-03 | 中国石油天然气集团有限公司 | Self-rotating wellbore cleaning tool for sliding drilling |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651420A (en) * | 1995-03-17 | 1997-07-29 | Baker Hughes, Inc. | Drilling apparatus with dynamic cuttings removal and cleaning |
| US20090025927A1 (en) * | 2005-07-02 | 2009-01-29 | Specialised Petroleum Services Group Limited | Wellbore cleaning method & apparatus |
| CN201738848U (en) * | 2010-06-02 | 2011-02-09 | 西南石油大学 | Wellbore cleaning tool used in well drilling |
| US20110146998A1 (en) * | 2009-12-16 | 2011-06-23 | Tunget Bruce A | Methods for using or removing unused rock debris from a passageway through subterranean strata using rock breaking apparatus |
| CN102913157A (en) * | 2012-11-08 | 2013-02-06 | 中国石油天然气集团公司 | Underground sleeve rotational flow guider |
| CN102913155A (en) * | 2012-10-29 | 2013-02-06 | 陕西联盟物流有限公司 | Cuttings bed scavenger |
| CN203430446U (en) * | 2013-08-02 | 2014-02-12 | 天津市万众科技发展有限公司 | Horizontal well turbine sand cleaning device |
| CN103775009A (en) * | 2012-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Drilling power rock debris bed eraser |
| CN104265212A (en) * | 2014-07-28 | 2015-01-07 | 东北石油大学 | Borehole cleaning tool for drilling highly-deviated well |
| CN104675346A (en) * | 2015-02-15 | 2015-06-03 | 东北石油大学 | Split blade hydraulic-magnetic transmission well hole cleaning tool |
| CN105201430A (en) * | 2015-10-26 | 2015-12-30 | 东北石油大学 | Turbine drive cuttings bed cleaning device |
| CN106246114A (en) * | 2016-10-24 | 2016-12-21 | 中国石油大学(北京) | Mill drill pipe nipple in horizontal well pulse |
| CN206503576U (en) * | 2016-12-22 | 2017-09-19 | 扬州大泽石油工程技术有限公司 | Vortex generator |
-
2016
- 2016-12-22 CN CN201611195790.9A patent/CN106639930B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5651420A (en) * | 1995-03-17 | 1997-07-29 | Baker Hughes, Inc. | Drilling apparatus with dynamic cuttings removal and cleaning |
| US20090025927A1 (en) * | 2005-07-02 | 2009-01-29 | Specialised Petroleum Services Group Limited | Wellbore cleaning method & apparatus |
| US20110146998A1 (en) * | 2009-12-16 | 2011-06-23 | Tunget Bruce A | Methods for using or removing unused rock debris from a passageway through subterranean strata using rock breaking apparatus |
| CN201738848U (en) * | 2010-06-02 | 2011-02-09 | 西南石油大学 | Wellbore cleaning tool used in well drilling |
| CN103775009A (en) * | 2012-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Drilling power rock debris bed eraser |
| CN102913155A (en) * | 2012-10-29 | 2013-02-06 | 陕西联盟物流有限公司 | Cuttings bed scavenger |
| CN102913157A (en) * | 2012-11-08 | 2013-02-06 | 中国石油天然气集团公司 | Underground sleeve rotational flow guider |
| CN203430446U (en) * | 2013-08-02 | 2014-02-12 | 天津市万众科技发展有限公司 | Horizontal well turbine sand cleaning device |
| CN104265212A (en) * | 2014-07-28 | 2015-01-07 | 东北石油大学 | Borehole cleaning tool for drilling highly-deviated well |
| CN104675346A (en) * | 2015-02-15 | 2015-06-03 | 东北石油大学 | Split blade hydraulic-magnetic transmission well hole cleaning tool |
| CN105201430A (en) * | 2015-10-26 | 2015-12-30 | 东北石油大学 | Turbine drive cuttings bed cleaning device |
| CN106246114A (en) * | 2016-10-24 | 2016-12-21 | 中国石油大学(北京) | Mill drill pipe nipple in horizontal well pulse |
| CN206503576U (en) * | 2016-12-22 | 2017-09-19 | 扬州大泽石油工程技术有限公司 | Vortex generator |
Non-Patent Citations (3)
| Title |
|---|
| 汪志明等: "风琴管喷嘴外湍流射流流场的数值模拟", 《石油大学学报(自然科学版)》 * |
| 陈安明等: "大位移钻井岩屑床影响因素分析及清除技术探究", 《电子测试》 * |
| 陈锋等: "高效岩屑床清除钻杆作用机理", 《石油学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469278A (en) * | 2019-08-09 | 2019-11-19 | 中国石油天然气股份有限公司 | A kind of cutting bed cleaning tool and application method |
| CN115726738A (en) * | 2021-08-25 | 2023-03-03 | 中国石油天然气集团有限公司 | Self-rotating wellbore cleaning tool for sliding drilling |
| CN115726738B (en) * | 2021-08-25 | 2024-04-30 | 中国石油天然气集团有限公司 | Self-rotating borehole cleaning tool for sliding drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106639930B (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206267815U (en) | Drilling type continuous sand flushing device | |
| CN106437570A (en) | Drilling type continuous sand blasting device | |
| CN207960507U (en) | A kind of PDC milling bits | |
| CN109930993A (en) | A kind of pebble layer tube well dewatering well formation device and construction method | |
| CN107780836A (en) | reamer | |
| CN104265178B (en) | Broad | |
| CN106639930A (en) | Vortex generator | |
| CN105064991B (en) | One kind probing soil sampling double wall drill tool | |
| CN203742495U (en) | High-pressure rotary washing tool | |
| CN206503576U (en) | Vortex generator | |
| CN203097722U (en) | Tapered gauge PDC drill bit | |
| CN205047161U (en) | Dig soon and expand subdrilling head | |
| CN100575659C (en) | A kind of insufficient balance well completion method | |
| CN203685037U (en) | Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole | |
| CN107448156B (en) | Full-drift diameter sleeve guide shoe | |
| US1785120A (en) | Core by-pass drill | |
| CN210598825U (en) | Pneumatic impact reamer | |
| CN201544128U (en) | Hydraulic sand-blasting cutter | |
| CN209670929U (en) | With brill formula wellbore trimmer | |
| CN210564438U (en) | Forging and milling device | |
| CN209556930U (en) | A kind of borehole wall dressing tool | |
| CN107842316B (en) | Accelerating drill bit for partial decompression of well bottom | |
| CN207436917U (en) | Reamer | |
| CN214836176U (en) | Integrated wide-blade-surface grooving drill rod with cleaning function | |
| CN203547539U (en) | Vibrating double-tail tip bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221021 Address after: 102200 Beijing city Changping District Road No. 18 Applicant after: China University of Petroleum (Beijing) Address before: 225000 B507, A1 Floor, Yangzhou Science Park, Xi'an Jiaotong University, Wuzhou East Road, Yangzhou Development Zone, Jiangsu Province Applicant before: Yangzhou Daze Petroleum Engineering Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |