CN106894777A - Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument - Google Patents
Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument Download PDFInfo
- Publication number
- CN106894777A CN106894777A CN201710144954.3A CN201710144954A CN106894777A CN 106894777 A CN106894777 A CN 106894777A CN 201710144954 A CN201710144954 A CN 201710144954A CN 106894777 A CN106894777 A CN 106894777A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- shaft bottom
- deep
- drilling
- eddy flow
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 110
- 239000012530 fluid Substances 0.000 title claims abstract description 65
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 abstract description 15
- 239000007790 solid phase Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 230000035515 penetration Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000087 stabilizing effect 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
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 deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument, mainly it is made up of inlet, support bar, helical runner, v-depression, the solid jet of row and liquid outlet.The instrument is that solution deep-well shaft bottom drilling fluid density is high, and chip hold down effect is serious, the low problem of rate of penetration.It is as follows that deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument implements process：When the drilling fluid for flowing from top to bottom flows through deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument, a part is flowed directly out by the space outside the eddy flow speed-raising instrument of deep drilling shaft bottom drilling fluid one side；Another part flows into deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument from inlet.Helical runner in the drilling fluid impact deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument of high-voltage high-speed rotates at a high speed, helical runner is collected in solid phase particles rotation migration to the v-depression in drilling fluid the solid phase particles after separating and is sprayed outside drilling rod by the upper and lower two solid jets of row by v-depression.The instrument can effectively reduce deep-well shaft bottom chip hold down effect, improve rate of penetration, reduces cost.
Description
Technical field
The present invention relates to deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument, belong to oil, gas drilling and match somebody with somebody
Covering device, can especially reduce deep-well shaft bottom drilling fluid density, mitigate bit wear, improve bit speed, extend the drill bit longevity
Life.
Background technology
With the reduction of world's Shallow Oil-Gas resource, oil-gas exploration and development gradually changes to deep-well.Deep formation drilling well speed
The speed of degree directly affects the economic benefit of oil-gas exploration and development, but strata pressure suffered by the drilling well of deep is big, required drilling fluid
Density it is big, high density drilling fluid strong influence rate of penetration, this also turns into deep drilling urgent problem.
With constantly carrying out for drilling process, drilling depth is continuously increased, it is necessary to be added as barite in drilling fluid
Etc weighting material, for improving the density of drilling fluid, to reach the purpose of stabilizing borehole and reservoir protec-tion.Laboratory test
Proved with drilling practice, improve drilling fluid density, can increase the pressure differential in well between head of liquid and strata pressure will make brill
Speed drastically declines.Its main cause is that bottom hole pressure difference has chip hold down effect to just broken landwaste, hinders the timely clear of shaft bottom landwaste
Remove, influence the efficiency of breaking rock of drill bit, rate of penetration to decline, bit wear aggravation.
Shown according to a large amount of live well datas, in drilling fluid solid concentration be influence one of bit speed it is important because
Element, its increase can cause the reduction of rate of penetration.There are some researches show solid concentration often improves 7%, and rate of penetration will decline
To the half of original drilling speed.So solid concentration in drilling fluid is strictly controlled, to ensureing that high quality and high speed drilling has direct shadow
Ring.
Analyzed based on more than, the present invention devises deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument, the tool needle
To deep-well bottom pressure greatly, the features such as drilling fluid density used is high is designed, and drilling fluid is separated at the nearly drill bit in deep-well shaft bottom
In partial solid phase particle, the density of the drilling fluid by being lowered into drill bit, and reduce the chip hold down effect in deep-well shaft bottom reduces
Repeat broken, reduce nozzle wear, rate of penetration and extension bit life can be effectively improved.
The content of the invention
In order to achieve the above object, the present invention is adopted the following technical scheme that：
Deep drilling shaft bottom drilling fluid one side eddy flow raises speed instrument by inlet, support bar, helical runner, v-depression, row
Gu jet and liquid outlet are constituted.
Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument is connected through a screw thread with upper and lower drilling tool, and the instrument is arranged on
Inside drilling rod, instrument and is welded and fixed near the drilling rod wall of side with drilling rod inwall, and tool cross sections product accounts for drilling rod cross-sectional area
3/4ths；Tool interior, for interior section thickeies, is provided with v-depression near drilling rod wall side in the middle of reinforcement, V-arrangement is recessed
Groove by shallow and deep, eventually passes through drilling-rod external wall from top to bottom, and an aperture is formed on drilling-rod external wall, that is, arrange solid jet；Work
V-depression has two sections from top to bottom in tool, equally there is two solid jets of row；Tool interior installs helical runner, helical runner
Upper and lower ends be respectively mounted bearing, bearing is fixed in the middle of inlet and liquid outlet by four support bars.
Drilling fluid pumps into underground from ground pressure, and flows through deep drilling shaft bottom drilling fluid one side eddy flow from top rod and carry
It is divided into two parts during fast instrument：A part is directly flowed by the space outside the eddy flow speed-raising instrument of deep drilling shaft bottom drilling fluid one side
Go out；Another part flows into deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument from inlet.Drilling fluid is divided into two parts
Purpose be to reduce the pressure loss of flowing drilling fluid as far as possible and reduce frictional resistance, and separate discharge part solid phase particles,
The solid concentration in drilling fluid at bit nozzle is reduced, drill bit efficiency of breaking rock is improved.
The drilling fluid for flowing into deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument by inlet impacts helical runner,
Helical runner is rotated due to the effect of drilling fluid impulsive force, and the helical runner of rotation drives drilling fluid rotation, drilling fluid at a high speed
After centrifugal action, the solid phase particles rotary speed in drilling fluid is higher than liquid phase drilling fluid, the solid phase particles in drilling fluid
It is close to tool wall rotation, is hoarded at v-depression, because drilling fluid flows from top to bottom, promotes the solid phase particles in v-depression
Migration downwards, solid phase particles are ejected outside drilling rod by the solid jet of top row；Drilling fluid continues to flow downward, and by helical-blade
Wheel carries out secondary separation, and the solid phase particles that secondary separation goes out are sprayed outside drilling rod from the solid jet of bottom row；Eventually pass and divide twice
From drilling fluid from liquid outlet discharge, with instrument outside flow drilling fluid mixed after enter drill bit.
The beneficial effects of the invention are as follows：(1) by the solid phase particles in the drilling fluid of separate section deep-well shaft bottom, effective drop
Drilling fluid density at the low nearly drill bit in shaft bottom such that it is able to effectively reduce the chip hold down effect in deep-well shaft bottom；(2) by reducing deep-well well
The chip hold down effect at bottom, it is possible to increase rate of penetration, shortens individual well drilling time, reduces drilling cost, while for high-quality is quick
Drilling efficiency provides a kind of simple and effective technological means.
Brief description of the drawings
Accompanying drawing 1 is schematic structural view of the invention.
Accompanying drawing 2 is sectional view of the present invention
Label in figure：Inlet 1, support bar 2, helical runner 3, v-depression 4, row solid jet 5, liquid outlet 6, screw thread
7th, the space 9 outside axis 8, instrument
Specific embodiment
Below in conjunction with accompanying drawing 1, the present invention is described in detail, it is as follows：
Deep drilling shaft bottom drilling fluid one side eddy flow raises speed instrument by inlet 1, support bar 2, helical runner 3, v-depression
4th, solid jet 5, liquid outlet 6 and screw thread 7 is arranged to constitute.
Drilling fluid pumps into underground from ground pressure, and flows through deep drilling shaft bottom drilling fluid one side eddy flow from top rod and carry
It is divided into two parts during fast instrument：A part is direct by the space 9 outside the eddy flow speed-raising instrument of deep drilling shaft bottom drilling fluid one side
Outflow；Another part flows into deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument from inlet 1.
The drilling fluid for flowing into deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument by inlet 1 impacts helical runner
3, helical runner 3 is rotated due to the effect of drilling fluid impulsive force, and the helical runner 3 of rotation drives drilling fluid rotation at a high speed, bores
After well liquid is subject to centrifugal action, the solid phase particles rotary speed in drilling fluid is higher than liquid phase drilling fluid, the solid phase in drilling fluid
Particle is close to tool wall rotation, is hoarded at v-depression 4, because drilling fluid flows from top to bottom, promotes consolidating in v-depression 4
Phase particle is migrated downwards, and solid phase particles are ejected outside drilling rod by the solid jet 5 of top row；Drilling fluid continues to flow downward, and leads to
Crossing helical runner 3 carries out secondary separation, and the solid phase particles that secondary separation goes out are sprayed outside drilling rod from the solid jet 5 of bottom row；Finally
Discharged from liquid outlet 6 by the drilling fluid for twice separate, with instrument outside flow drilling fluid mixed after enter drill bit.
Claims (1)
1. deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument, mainly recessed by inlet, support bar, helical runner, V-arrangement
Groove, the solid jet of row and liquid outlet composition, it is characterised in that：The tool interior side is annular space, and opposite side is helical runner；
The tool wall thickeies and is provided with two sections of v-depressions；The v-depression depth is gradually deepened from the top down, in v-depression foot
Through tool wall；The support bar is fixed on the tool interior；The helical runner is connected by bearing with support bar, spiral
Impeller is from top to bottom continuous blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144954.3A CN106894777A (en) | 2017-03-13 | 2017-03-13 | Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144954.3A CN106894777A (en) | 2017-03-13 | 2017-03-13 | Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106894777A true CN106894777A (en) | 2017-06-27 |
Family
ID=59192374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710144954.3A Pending CN106894777A (en) | 2017-03-13 | 2017-03-13 | Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894777A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401378A (en) * | 2017-09-20 | 2017-11-28 | 中国石油大学(北京) | Drill bit |
| CN114233204A (en) * | 2021-12-08 | 2022-03-25 | 江苏和信石油机械有限公司 | Drilling and pumping integrated gas drill rod structure |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1018743A (en) * | 1963-09-06 | 1966-02-02 | Grubbens & Co Aktiebolag | Improvements in a cyclone separator |
| US4475603A (en) * | 1982-09-27 | 1984-10-09 | Petroleum Instrumentation & Technological Services | Separator sub |
| US4688650A (en) * | 1985-11-25 | 1987-08-25 | Petroleum Instrumentation & Technological Services | Static separator sub |
| CN2051665U (en) * | 1989-04-17 | 1990-01-24 | 牡丹江市新荣石油机械厂 | Drilling bit working condition adjusting joint |
| US20060000993A1 (en) * | 2002-10-23 | 2006-01-05 | Downhole Products Plc | Cement flow control tool |
| US20070056773A1 (en) * | 2005-09-06 | 2007-03-15 | Booth Richard K | Downhole impeller device |
| CN101245694A (en) * | 2008-03-19 | 2008-08-20 | 中国石油大学(华东) | Down-hole drilling fluids separating mechanism |
| CN102172567A (en) * | 2011-01-28 | 2011-09-07 | 浙江青田瓯鹏机械制造有限公司 | Horizontal spiral centrifugal machine |
| CN102657963A (en) * | 2012-03-06 | 2012-09-12 | 中国石油大学(华东) | Apparatus for reducing solid phase content of drilling fluid under well |
| US20130105152A1 (en) * | 2011-10-26 | 2013-05-02 | Premiere, Inc. | Method and Apparatus for Downhole Fluid Conditioning |
| US20140357464A1 (en) * | 2013-05-30 | 2014-12-04 | National Oilwell Varco, L.P. | Centrifuge |
| CN104832108A (en) * | 2015-05-19 | 2015-08-12 | 中国石油大学(北京) | Continuous damming pulse jetting acceleration drill bit |
| CN206668187U (en) * | 2017-03-13 | 2017-11-24 | 中国石油集团钻井工程技术研究院 | Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument |
-
2017
- 2017-03-13 CN CN201710144954.3A patent/CN106894777A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1018743A (en) * | 1963-09-06 | 1966-02-02 | Grubbens & Co Aktiebolag | Improvements in a cyclone separator |
| US4475603A (en) * | 1982-09-27 | 1984-10-09 | Petroleum Instrumentation & Technological Services | Separator sub |
| US4688650A (en) * | 1985-11-25 | 1987-08-25 | Petroleum Instrumentation & Technological Services | Static separator sub |
| CN2051665U (en) * | 1989-04-17 | 1990-01-24 | 牡丹江市新荣石油机械厂 | Drilling bit working condition adjusting joint |
| US20060000993A1 (en) * | 2002-10-23 | 2006-01-05 | Downhole Products Plc | Cement flow control tool |
| US20070056773A1 (en) * | 2005-09-06 | 2007-03-15 | Booth Richard K | Downhole impeller device |
| CN101245694A (en) * | 2008-03-19 | 2008-08-20 | 中国石油大学(华东) | Down-hole drilling fluids separating mechanism |
| CN102172567A (en) * | 2011-01-28 | 2011-09-07 | 浙江青田瓯鹏机械制造有限公司 | Horizontal spiral centrifugal machine |
| US20130105152A1 (en) * | 2011-10-26 | 2013-05-02 | Premiere, Inc. | Method and Apparatus for Downhole Fluid Conditioning |
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| US20140357464A1 (en) * | 2013-05-30 | 2014-12-04 | National Oilwell Varco, L.P. | Centrifuge |
| CN104832108A (en) * | 2015-05-19 | 2015-08-12 | 中国石油大学(北京) | Continuous damming pulse jetting acceleration drill bit |
| CN206668187U (en) * | 2017-03-13 | 2017-11-24 | 中国石油集团钻井工程技术研究院 | Deep drilling shaft bottom drilling fluid one side eddy flow speed-raising instrument |
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|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401378A (en) * | 2017-09-20 | 2017-11-28 | 中国石油大学(北京) | Drill bit |
| CN107401378B (en) * | 2017-09-20 | 2023-10-27 | 中国石油大学(北京) | Drill bit |
| CN114233204A (en) * | 2021-12-08 | 2022-03-25 | 江苏和信石油机械有限公司 | Drilling and pumping integrated gas drill rod structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |