CN106761481A - One kind automatically adjusts the pressure of the drill instrument - Google Patents
One kind automatically adjusts the pressure of the drill instrument Download PDFInfo
- Publication number
- CN106761481A CN106761481A CN201611173631.9A CN201611173631A CN106761481A CN 106761481 A CN106761481 A CN 106761481A CN 201611173631 A CN201611173631 A CN 201611173631A CN 106761481 A CN106761481 A CN 106761481A
- Authority
- CN
- China
- Prior art keywords
- pressure
- drill
- spline
- pipe
- automatically adjusts
- 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 32
- 238000004146 energy storage Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000033228 biological regulation Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001360 synchronised 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
- 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
One kind automatically adjusts the pressure of the drill instrument, and the connection with other drilling tools is realized by the external screw thread of heart axle lower end lower contact and the internal thread of top connection；Top connection inside stranded wire helical spring energy storage, spring is fixed on inside by sleeve pipe, and top connection is used with internal thread spline cylinder and is threadedly coupled；Internal and external screw spline is rectangle flank profil；Connection sleeve pipe connects pressurization sliding pipe above with threaded connection outer spiral spline axle below by pipe screw thread；The latter half Y type runner sleeve pipes, by bearing and pressurization sliding pipe interference fit；Pressurizing piston axle is connected to above drill bit, and pressurization sliding pipe has a keyway to be slided up and down in it by pressurizing piston axle inside it；There is a layer dividing plate centre, there is four uniform circular holes on dividing plate.The present invention effectively slows down bit wear in drilling process by automatic Regulation, can keep drill bit the pressure of the drill stabilization and effectively auxiliary rock during deep drilling well and horizontal well drilling, reduces bit freezing, backing pressure phenomenon, improves drill bit utilization rate, reduces cost.
Description
Technical field
It is used to oil-gas drilling engineering, Tunnel Engineering, geological drilling, particularly oil gas field the present invention relates to one kind bore
The pressure of the drill instrument is automatically adjusted in well.
Background technology
In recent years, with the increase of oil exploitation difficulty, horizontal well, high angle hole, minor diameter well, deep-well, old street district
The shared ratio in drilling well of well is increasing, and efficient drilling well is difficult to realize in this case.In drilling process, by
The rock stratum for meeting different hardness is bored in friction, drill bit in drill string and the borehole wall, and the real-time the pressure of the drill required for causing drill bit has a standing wave
It is dynamic, but the drilling pressure that ground applies easily causes the pressure for being applied to drill bit by just putting on drill bit after transmission more long
Power is excessive or too small.The pressure of the drill is too low, and drilling speed is very slow；The pressure of the drill is excessive, and the abrasion of drill bit can aggravate, and drilling speed improvement effect is also failed to understand
It is aobvious, or even drilling effect is deteriorated.The various forms produced when being rotated in pit shaft because of drill bit characteristic in itself and drill string again
Vibration, Bottom Hole Bit Weight In A is not a steady state value.Suitable Fluctuation of weight on bit is conducive to drill bit fractured rock, if Fluctuation of weight on bit
It is excessive, not only bad for catalase, or even the impact failure that drill teeth and bit bearing can be caused.Selection is suitable to bore
Pressure is extremely important to drilling process.In order to during deep drilling well and horizontal well drilling, keep drill bit the pressure of the drill stabilization to have
Effect auxiliary rock, reduces bit freezing, backing pressure phenomenon, and one drilling well the inside of invention automatically adjusts the pressure of the drill instrument.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, and invention one kind automatically adjusts the pressure of the drill instrument, reaches
Autobalance drilling pressure, the high efficiency of transmission for realizing the pressure of the drill energy and the purpose for utilizing.
To achieve the above object, the present invention uses following technical scheme：One kind automatically adjusts the pressure of the drill instrument, by coupling part
(being made up of top connection, lower contact, connection socket), energy storage section (being made up of stranded wire helical spring, spring inner sleeve), Turbo Flora
Key section (being made up of outer spiral spline axle, internal thread spline cylinder), pressurized part (by Y type runners sleeve pipe, combination sealing pipe, add
Pressure sliding pipe, pressurizing piston axle, stranded wire helical spring composition), other parts part (seal member, pipe screw thread parts) five it is big
Part constitutes.Its architectural feature is：1) the connection lower contact part of coupling part is threaded connection, and upper and lower junction portion above connects
Head connection drill collar, lower contact connection drill bit, interface uses NC50；Connection sleeve pipe above with threaded connection outer spiral spline axle,
Below by pipe screw thread connection pressurization sliding pipe.2) the energy storage tools selection non-stop layer multi-wire helical compression spring of energy storage section,
For realizing preserving and release for the pressure of the drill energy；Spring inner sleeve, act as fixing stranded wire helical spring in axial direction motion,
Skew is not produced.3) the internal and external screw spline flank profil of helical spline part is rectangle, and connected mode is threaded connection.Internal thread is spent
Key and external screw thread spline fitted, rotation direction are left-handed.4) the pressure piston shaft of pressurized part is connected to above drill bit, and drilling fluid is from top connection
Flow into, flowed out from Y type runners sleeve pipe through centre bore, due to the throttling action of Y type runner sleeve pipes, high pressure is formed in lower tool
Area, and pressurizing piston axle cavity of resorption is communicated due to damping sky with annular space, is low-pressure area.Pressurizing piston axle is produced in the presence of pressure difference
Axial thrust, promotes pressurizing piston axle to move down.Combination sealing pipe plays sealing pressing, is formed in pressurizing piston Zhou Xia areas
Low-pressure area is so as to produce pressure difference；Pressurization sliding pipe has a keyway to be slided up and down in it by pressurizing piston axle inside it, does not produce
Raw radial rotating.There is a layer dividing plate centre, has four uniform circular holes on dividing plate, for the flowing of pressure difference drilling fluid.5) other zero
Seal member in part, is mainly used in being contacted with connection sleeve pipe, using Double seal ring；Pipe screw thread part, is mainly used in connection
Top connection, screw thread is using petroleum industry specialty pipe screw thread.
The beneficial effects of the invention are as follows：(1) originally automatically adjusting the pressure of the drill instrument can effectively reduce bit wear, reduces cost：
When drill bit bit freezing, drill bit is lifted by outer spiral spline axle and again drill bit is discharged by stored energy mechanism, so change bit location,
Recover normal drilling well；(2) originally automatically adjusting the pressure of the drill instrument can speed up the work, and reduce the probability that drill bit crumbles, it is to avoid serious
Economic loss：When drill bit backing pressure, bit contact shaft bottom is pushed by pressurizing piston axle, it is to avoid produce differential sticking, release is bored
Head pressure, recovers normal drilling well.
Brief description of the drawings
Fig. 1 is a kind of structural representation for automatically adjusting the pressure of the drill instrument of the present invention.
In figure：1. top connection, 2. connects socket, 3. spring inner sleeve, 4.Y type runner sleeve pipes, and 5. pressurize sliding pipe, 6. close
Seal, 7. stranded wire helical spring, 8. packing ring, 9. pressurizing piston axle, 10. combination sealing pipe, 11. stranded wire helical springs, spiral shell in 12.
Rotation spline tube, 13. sealing rings, 14. lower contacts, 15. outer spiral spline axles, 16. sealing rings.
Specific embodiment
Shown with reference to the accompanying drawings, this instrument is by coupling part (top connection 1, connection socket 2, lower contact 14), energy storage section
(spring inner sleeve 3, stranded wire helical spring 7), helical spline part (internal thread spline cylinder 12, outer spiral spline axle 15), pressurization
Partly (Y type runners sleeve pipe 4, pressurization sliding pipe 5, pressurizing piston axle 9, combination sealing pipe 10, stranded wire helical spring 11), other zero
The most of composition of element portion (sealing ring 6, packing ring 8, sealing ring 16 and pipe screw thread everywhere) five.Instrument is by under heart axle lower end
The external screw thread of joint 14 and the internal thread of top connection 1 realize the connection with other drilling tools.Due to Y type runners thimble tube 4
Throttling action, forms higher-pressure region in tool lower portion cylinder sleeve, and the cavity of resorption of pressurizing piston axle 9 is due to having annular space and damping hole to form low
Nip, under the axial thrust effect that pressure difference is produced, pressurizing piston axial movement realizes that drill bit is moved down.In normal drilling process,
Stratum can produce a reaction torque to drill bit, under difference in torque effect, the helical spline switching mechanism internal thread spline cylinder of instrument
12nd, outer spiral spline axle 15 rotates and spring energy storage mechanism stranded wire helical spring 7 is produced compression；When tool lower portion drilling tool
Or at drill bit when viscous or stratum alternately stall occurs, moment of torsion increases suddenly, drill bit can stop operating or rotating speed drastically under
Drop, the drilling tool of upper tool part occurs speed difference with the drilling tool of bottom, and now switching mechanism can be acted in high pulling torque and speed difference
Under rotate and make spring energy-storage mechanism stranded wire helical spring 11 produce compression, bottom drill bit obtain it is certain above carry, realize
Moved on drill bit.The drill bit in the presence of spring force and upward inertia force of pressurizing piston axle 9 is further lifted.Work as instrument
When lower drilling tool or drill bit synchronous with top moment of torsion, the drill bit that releases energy of spring energy-storage mechanism 11 is moved down, and pressurized part continues again
Pressurization, drill bit drilling.
Finally illustrate, embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, this area
It is to be appreciated by one skilled in the art that technical scheme can be modified or equivalent, without deviating from this hair
The objective and scope of bright technical scheme, it all should cover in the middle of scope of the presently claimed invention.
Claims (6)
1. one kind automatically adjusts the pressure of the drill instrument, it is characterised in that including coupling part, energy storage section, helical spline part, pressurization
Part and remaining parts part five are most of.
Described coupling part is made up of top connection, lower contact, connection socket three part；Described energy storage section is by multiply spiral
Spring, spring inner sleeve two parts composition；The helical spline part is by outer spiral spline axle, internal thread spline cylinder two parts group
Into；The pressurized part is by Y type runners sleeve pipe, combination sealing pipe, pressurization sliding pipe, pressurizing piston axle, stranded wire helical spring five
Part constitutes；Described remaining parts part is made up of seal member, pipe screw thread part two parts.
2. the one kind according to claim 1 automatically adjusts the pressure of the drill instrument, it is characterised in that：Energy storage used by the energy storage section
Energy storage part used by part and pressurized part is stranded wire helical spring.
3. the one kind according to claim 1 automatically adjusts the pressure of the drill instrument, it is characterised in that：In the helical spline part,
To ensure that drilling tool uniform force and does not have large impact in forward-reverse, internal and external screw spline profile geometry is rectangle.
4. the one kind according to claim 1 automatically adjusts the pressure of the drill instrument, it is characterised in that：Pressurized part throttling used
Pressurized part is Y type runner sleeve pipes, and drilling fluid flows into Y type runner sleeve pipes through upper interface, because the throttling of Y type runner thimble tubes is made
With forming higher-pressure region in tool lower portion cylinder sleeve.
5. the one kind according to claim 1 automatically adjusts the pressure of the drill instrument, it is characterised in that：In the pressurized part, pressurization
There is a keyway to be slided up and down in it by pressurizing piston axle inside sliding pipe, do not produce radial rotating；The pressurization sliding pipe
There is a layer dividing plate inside, has four uniform circular holes on dividing plate, for the flowing of pressure difference drilling fluid.
6. the one kind according to claim 1 automatically adjusts the pressure of the drill instrument, it is characterised in that：In the pressurized part, pressurization
The cavity of resorption of piston shaft has annular space mutually to pass to form low-pressure area with damping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173631.9A CN106761481B (en) | 2016-12-19 | 2016-12-19 | A kind of automatic adjustment bit pressure tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173631.9A CN106761481B (en) | 2016-12-19 | 2016-12-19 | A kind of automatic adjustment bit pressure tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761481A true CN106761481A (en) | 2017-05-31 |
| CN106761481B CN106761481B (en) | 2018-11-13 |
Family
ID=58891190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611173631.9A Active CN106761481B (en) | 2016-12-19 | 2016-12-19 | A kind of automatic adjustment bit pressure tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761481B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952571A (en) * | 2018-07-12 | 2018-12-07 | 宝鸡科源石油装备有限责任公司 | It is a kind of can be with the fluid pressure type coiled tubing drilling directional orientation tool of bit pressure |
| CN112901062A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Automatic torque adjusting device for drill bit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207607U (en) * | 1986-10-18 | 1987-12-05 | 地质矿产部华东石油地质局 | Self-adjustable mechanical drill-attached inclinometer |
| US20040065484A1 (en) * | 2002-10-08 | 2004-04-08 | Mcalvain Bruce William | Diamond tip point-attack bit |
| US20050205302A1 (en) * | 2000-11-01 | 2005-09-22 | Baker Hughes Incorporated | Hydraulic and mechanical noise isolation for improved formation testing |
| CN201141287Y (en) * | 2007-09-30 | 2008-10-29 | 西南石油大学 | Minute borehole hydropower presser |
| CN102562035A (en) * | 2012-01-12 | 2012-07-11 | 中国海洋石油总公司 | Underground engineering parameter measurement-while-drilling device |
| CN102852512A (en) * | 2012-09-11 | 2013-01-02 | 西南石油大学 | Device and method for monitoring stick-slip vibration of drill bit based on measurement while drilling |
-
2016
- 2016-12-19 CN CN201611173631.9A patent/CN106761481B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207607U (en) * | 1986-10-18 | 1987-12-05 | 地质矿产部华东石油地质局 | Self-adjustable mechanical drill-attached inclinometer |
| US20050205302A1 (en) * | 2000-11-01 | 2005-09-22 | Baker Hughes Incorporated | Hydraulic and mechanical noise isolation for improved formation testing |
| US20040065484A1 (en) * | 2002-10-08 | 2004-04-08 | Mcalvain Bruce William | Diamond tip point-attack bit |
| CN201141287Y (en) * | 2007-09-30 | 2008-10-29 | 西南石油大学 | Minute borehole hydropower presser |
| CN102562035A (en) * | 2012-01-12 | 2012-07-11 | 中国海洋石油总公司 | Underground engineering parameter measurement-while-drilling device |
| CN102852512A (en) * | 2012-09-11 | 2013-01-02 | 西南石油大学 | Device and method for monitoring stick-slip vibration of drill bit based on measurement while drilling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952571A (en) * | 2018-07-12 | 2018-12-07 | 宝鸡科源石油装备有限责任公司 | It is a kind of can be with the fluid pressure type coiled tubing drilling directional orientation tool of bit pressure |
| CN108952571B (en) * | 2018-07-12 | 2023-07-21 | 宝鸡科源石油装备有限责任公司 | Hydraulic coiled tubing drilling directional tool with drilling pressure |
| CN112901062A (en) * | 2021-01-27 | 2021-06-04 | 中国石油大学(华东) | Automatic torque adjusting device for drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761481B (en) | 2018-11-13 |
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