CN106703695A - High WOB anti-deviation well straightening drill assembly - Google Patents
High WOB anti-deviation well straightening drill assembly Download PDFInfo
- Publication number
- CN106703695A CN106703695A CN201710035169.4A CN201710035169A CN106703695A CN 106703695 A CN106703695 A CN 106703695A CN 201710035169 A CN201710035169 A CN 201710035169A CN 106703695 A CN106703695 A CN 106703695A
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- drill
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- quickly
- collar
- bha
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- 238000005553 drilling Methods 0.000 claims abstract description 75
- 238000007665 sagging Methods 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 241000125205 Anethum Species 0.000 abstract 1
- 238000013461 design Methods 0.000 description 8
- 210000002445 nipple Anatomy 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 241001468684 Diplocardia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/16—Drill collars
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a high WOB anti-deviation well straightening drill assembly comprises: a bit, a drill thick in lower part, a drill collar and a centralizer, the dill collar comprises a rill collar thin in the lower part, a rill collar thin in the upper part, a rill collar thin in the upper part, the bit, the drill thick in the lower part, the drill collar thin in the lower part , the centralizer, the drill collar thin in the upper part, the drill collar thick in the upper part is connected in turn. The device structure is simple, and is assembled with the common drill, the production cost and using cost are low, the performance is stable, other risks can't be taken to the drilling operation in the using process; the combination structure of the drill thick in the lower part, the drill collar thin in the lower part , the centralizer, the drill collar thin in the upper part, the drill collar thick in the upper part exerts a strong pendulum force to the drill to promote the organic unification of the two kinds of effect of anti-deviation well straightening which is the drill cutting face to the angle drop direction, the effect of anti-deviation well straightening is better, the anti-deviation effect is more obvious when the drill pressure is bigger, the performance is not limited by the downhole condition, the drilling speed can be increased; the device is also applied to the straight hole, the application scope is broad.
Description
Technical field
The invention belongs to petroleum works technical field, it is related to drilling equipment, specifically, is related to a kind of oil, natural gas
DHA in drillng operation.
Background technology
The steep straight prospect pit in stratum high and directional well diameter segment deviation control with drilling straight well problem are always to perplex a technology of drilling well circle
Problem.With being continuously increased for drilling depth, the problem becomes to protrude further.The deflecting control instrument for proposing at present includes conventional
Drilling tool and the major class of automatic vertical drilling tool two.Conventional drilling tool mainly include tower drilling tool, pendulum assembly, packed hole assembly, partially
Axle drilling tool, weighting diplocardia spiral stabilizer anti-deflection drilling tool etc., these drilling tools are also referred to as " passive anti-deviation device ", but scene application
Result shows, this kind of drilling tool its drop angle ability can not meet the requirement of well depth, Holes of Complicated Wells and high-dip structure and large dip angle strata, have
The raising that also to sacrifice the pressure of the drill as condition, seriously hinder bit speed.Automatic vertical drilling tool mainly has
The Power V systems of Schlumberger companies, the VertiTak systems of BakerHughes Inteq companies, Germany's intelligence are public
ZEB systems of department etc., preferably, but expense in use is too high for these system application effects, and when stratum high-temperature high pressure
When, its performance is affected, and popularization and application are also restrained.Therefore, develop it is economical and practical, can adapt to big the pressure of the drill quick drill
Enter and the anti-oblique well straightening BHA of performance stabilization has great importance to the Efficient Development of petroleum resources.
The Chinese invention patent document of the A of Publication No. CN 103742074 discloses a kind of deviation prevention and fast BHA, tool
Body discloses following technical characteristic：Deviation prevention and fast BHA includes passing sequentially through the drill bit of threaded connection, eccentric deflection lever
Structure pipe nipple, drill collar, centralizer.Also disclose following characteristics：Bias deflection lever construction pipe nipple, two ends carry drilling tool button, partially
Heart deflection lever construction pipe nipple is provided with through circular duct, and the axis through circular duct, drill bit and drill collar overlaps；Bias deflection
The wall thickness of lever construction pipe nipple side, the wall of side are thin, are seamlessly transitted between wall thickness part and wall thin section point, bias deflection lever
The thin side of structure pipe nipple wall, one end of drill collar is provided with rib.The patent of invention is short by eccentric deflection lever construction
Effective cutting and reduction drill axis and plumb line angle reciprocation of the section reinforcing drill bit to the lower borehole wall, so as to reduce hole deviation
Effect.The patent of invention needs the eccentric deflection lever construction pipe nipple of particular design to be combined with drill bit, drill collar and centralizer
The effect of hole deviation can be realized reducing, manufacturing cost is increased, and result is relatively complicated.
The content of the invention
It is an object of the invention in view of the foregoing defects the prior art has, there is provided a kind of simple structure, low cost
The anti-oblique well straightening BHA of big the pressure of the drill, can realize applying powerful pendulum force to drill bit and promote using the BHA
Drill bit tangent bevel turns to drop angle direction, so as to reduce hole deviation or correct hole deviation.
In order to achieve the above object, the invention provides a kind of big anti-oblique well straightening BHA of the pressure of the drill, including drill bit, bottom
Thick drilling tool, drill collar and centralizer, the drill collar include bottom jig drill quickly, top jig drill quickly, the thick drill collar in top, drill bit, bottom are thick
Drilling tool, bottom jig drill quickly, centralizer, top jig drill quickly, the thick drill collar in top is sequentially connected.
Preferably, the thick drilling tool in bottom, bottom jig drill quickly, top jig drill quickly, the length of the thick drill collar in top, internal diameter and external diameter root
It is designed and regulation according to live well actual conditions.
Preferably, weight of the weight of the thick drill collar in top more than the thick drill collar in bottom.
Preferably, the thick drilling tool in bottom is drill collar or other drilling tools, and the external diameter of the thick drilling tool in bottom is more than bottom jig drill quickly
External diameter, bottom jig drill external diameter quickly is not less than the external diameter of minimum drill collar in live well.
Preferably, the diametric fit of the external diameter of the thick drilling tool in bottom and drill bit.
Preferably, the external diameter of the thick drill collar in top is more than top jig drill external diameter quickly, and jig drill external diameter quickly in top is not less than existing
The external diameter of minimum drill collar in the well of field.
Preferably, the external diameter of centralizer less than drill bit external diameter, and with the diametric fit of drill bit.
Preferably, to meet drilling engineering drill bit, centralizer is the common centralizer of drilling well to drill bit.
Further, when being crept into drop tendency well or in build tendency well, centralizer is fulcrum, and top is slightly bored
The lower borehole wall is quickly lain at, so that top jig drill lower bow in the middle of quickly, bottom upwarps, bottom jig drill quickly bends on centre, and bottom is sagging,
While drill bit is born the thick drilling tool pendulum force in bottom, drilling direction points to drop angle direction.
Further, when being crept into straight hole, bottom jig drill quickly, top jig drill quickly bend, make the drill set
Close and be in vortex motion state.
Compared with prior art, the beneficial effects of the present invention are：
(1) structure of downhole assembly that the present invention is provided is simple, is formed merely with typical well tool combinations, cost of manufacture and
Use cost is low compared to existing drilling tool, stable performance, and otherwise wind will not be brought for drillng operation using process
Danger.
(2) present invention provide BHA by the thick drilling tool in bottom, bottom jig drill quickly, centralizer, top jig drill quickly, on
The combining structure that the thick drill collar in portion is constituted is realized to the powerful pendulum force of drill bit applying and promotes drill bit tangent bevel to turn to drop
The organic unity of the anti-bias correction effect of two kinds of tilted direction, anti-oblique well straightening excellent.
(3) BHA that the present invention is provided anti-oblique effect when the pressure of the drill is larger is more obvious, can discharge the pressure of the drill, and
Performance is not influenceed by downhole condition, is conducive to the raising of bit speed.
(4) BHA that the present invention is provided can be used not only for correction, it is also possible to be normally used for straight hole drilling, application
Scope is wider.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the anti-oblique well straightening BHA of the big the pressure of the drill of the embodiment of the present invention.
Fig. 2 is the schematic diagram of working condition one of the anti-oblique well straightening BHA of the big the pressure of the drill of the embodiment of the present invention.
Fig. 3 is the schematic diagram of working condition two of the anti-oblique well straightening BHA of the big the pressure of the drill of the embodiment of the present invention.
1st, drill bit, 2, the thick drilling tool in bottom, 3, bottom jig drill quickly, 4, centralizer, 5, top jig drill quickly, 6, the thick drill collar in top.
Specific embodiment
Below, the present invention is specifically described by exemplary implementation method.It should be appreciated, however, that not entering one
In the case of step narration, element, structure and features in an implementation method can also be advantageously incorporated into other embodiment
In.
Referring to Fig. 1, a kind of big anti-oblique well straightening BHA of the pressure of the drill, including be sequentially connected the thick drilling tool 2 of drill bit 1, bottom, under
Portion's jig drill quickly 3, centralizer 4, top jig drill quickly 5, the thick drill collar 6 in top.The thick drilling tool in bottom, bottom jig drill quickly, top jig drill quickly, on
The length of the thick drill collar in portion, internal diameter and external diameter are designed and regulation according to live well actual conditions.
When using, drill bit 1 is located at shaft bottom, for broken rock drilling；The thick drilling tool 2 in bottom, bottom jig drill quickly 3, centralizer 4, on
Portion's jig drill quickly 5, the thick drill collar 6 in top combine composition combining structure, stress and drilling direction for changing drill bit,
So as to the change Drilling Tendency；The thick drill collar in top is connected with the BHA on its top.
For the ease of the dismounting of above-mentioned BHA of the invention, as decision design, the thick drilling tool 2, bottom of drill bit 1, bottom
Jig drill quickly 3, centralizer 4, top jig drill quickly pass sequentially through threaded connection between 5, the thick drill collar 6 in top.
When being crept into drop tendency well, in order that drill bit creeps into along drop angle direction, to above-mentioned drill set of the invention
Conjunction carries out decision design, and the weight of the thick drill collar in top is more than the weight of the thick drilling tool in bottom, in the presence of the thick drill collar weight in top,
The top of the thick drilling tool in bottom inclines to well flash, promotes drill bit to be crept into along drop angle direction.
The need in order to meet drilling engineering, it is easy to the use of BHA, bit speed is improved, to above-mentioned brill of the invention
Tool combination carries out decision design, and the thick drilling tool in bottom is drill collar or other drilling tools, and the external diameter of the thick drilling tool in bottom is more than bottom jig drill
External diameter quickly, bottom jig drill external diameter quickly is not less than the external diameter of minimum drill collar in live well.
The need in order to meet drilling engineering, bit speed is improved, decision design is carried out to above-mentioned BHA of the invention,
The external diameter of the thick drilling tool in bottom and the diametric fit of drill bit.
The need in order to meet drilling engineering, it is easy to the use of BHA, bit speed is improved, to above-mentioned brill of the invention
Tool combination carries out decision design, and the external diameter of the thick drill collar in top is more than top jig drill external diameter quickly, and jig drill external diameter quickly in top is not small
In the external diameter of minimum drill collar in live well.
The need in order to meet drilling engineering, it is easy to the use of BHA, bit speed is improved, to above-mentioned brill of the invention
Tool combination carries out decision design, the external diameter of the external diameter less than drill bit of centralizer, and with the diametric fit of drill bit.
The above-mentioned BHA of the present invention, drill bit can use drilling well normal drill bit to meet drilling engineering drill bit, also may be used
Using the drill bit of other particular designs, as long as meet drilling engineering using.Centralizer is the common centralizer of drilling well, can be adopted
With spiral centering device or straight rib centralizer.
The above-mentioned anti-oblique well straightening mechanism of BHA is to apply powerful pendulum force and rush to drill bit using the thick drilling tool in bottom
Drill bit tangent bevel is set to turn to drop angle direction to realize the anti-oblique well straightening of synergy.With reference to the drillng operation in different wells
Anti-oblique correction to above-mentioned BHA of the invention is illustrated.
Embodiment one：Implement drillng operation in drop tendency well using above-mentioned BHA, in drilling, referring to figure
2, centralizer 4 serves as fulcrum role, is used as fulcrum, and the thick drill collar 6 in top lies at the lower borehole wall, so that top jig drill quickly 5
The lower bow in centre, bottom upwarps, bottom jig drill quickly in the middle of 3 on bend, bottom is sagging, drill bit 1 is born the thick pendulum force of drilling tool 2 in bottom
Meanwhile, drilling direction points to drop angle direction, so as to realize applying powerful pendulum force while promoting drill bit tangent bevel to drill bit
Turn to drop angle direction and carry out the anti-oblique well straightening of synergy.
Embodiment two：Implement drillng operation in build tendency well using above-mentioned BHA, in drilling, referring to figure
3, centralizer 4 serves as fulcrum role, is used as fulcrum, and the thick drill collar 6 in top lies at the lower borehole wall, so that top jig drill quickly 5
The lower bow in centre, bottom upwarps, bottom jig drill quickly in the middle of 3 on bend, bottom is sagging, drill bit 1 is born the thick pendulum force of drilling tool 2 in bottom
Meanwhile, drilling direction points to drop angle direction, so as to realize applying powerful pendulum force while promoting drill bit tangent bevel to drill bit
Turn to drop angle direction and carry out the anti-oblique well straightening of synergy.
Embodiment three：Implement drillng operation in straight hole using above-mentioned BHA, in drilling, bottom jig drill quickly 3,
Top jig drill quickly 5 bends, and the BHA is in vortex motion state.Situ of drilling well application shows BHA whirlpool
There is dynamic state deviation control with drilling straight well to act on, therefore, there is the operation in straight hole, above-mentioned BHA of the invention deviation control with drilling straight well to imitate
Really.
Above-described embodiment is used for explaining the present invention, rather than limiting the invention, in spirit of the invention and right
It is required that protection domain in, any modifications and changes made to the present invention both fall within protection scope of the present invention.
Claims (10)
1. a kind of anti-oblique well straightening BHA of big the pressure of the drill, including drill bit, the thick drilling tool in bottom, drill collar and centralizer, it is characterised in that
The drill collar include bottom jig drill quickly, top jig drill quickly with the thick drill collar in top, drill bit, the thick drilling tool in bottom, bottom jig drill quickly, righting
Device, top jig drill are quickly, the thick drill collar in top is sequentially connected.
2. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 1 big, it is characterised in that the thick drilling tool in bottom, bottom jig drill
Quickly, top jig drill is quickly, the length of the thick drill collar in top, internal diameter and external diameter be designed and regulation according to live well actual conditions.
3. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 1 or 2 big, it is characterised in that the weight of the thick drill collar in top
More than the weight of the thick drilling tool in bottom.
4. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 3 big, it is characterised in that the thick drilling tool in bottom be drill collar or
Other drilling tools, the external diameter of the thick drilling tool in bottom is more than bottom jig drill external diameter quickly, and jig drill external diameter quickly in bottom is not less than live well
The external diameter of interior minimum drill collar.
5. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 4 big, it is characterised in that the external diameter of the thick drilling tool in bottom with bore
The diametric fit of head.
6. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 3 big, it is characterised in that the external diameter of the thick drill collar in top is more than
Top jig drill external diameter quickly, top jig drill external diameter quickly is not less than the external diameter of minimum drill collar in live well.
7. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 1 big, it is characterised in that the external diameter of centralizer is less than drill bit
External diameter, and with the diametric fit of drill bit.
8. the anti-oblique well straightening BHA of big the pressure of the drill as described in claim 1 or 7, it is characterised in that drill bit is to meet spudder
Journey drill bit, centralizer is the common centralizer of drilling well.
9. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 1 big, it is characterised in that in drop tendency well or increase
In oblique trend well during drilling, centralizer is fulcrum, and the thick drill collar in top lies at the lower borehole wall, so that top jig drill is quickly under centre
Bow, bottom upwarps, and bottom jig drill quickly bends on centre, and bottom is sagging, while drill bit is born the thick drilling tool pendulum force in bottom, drilling
Point to drop angle direction in direction.
10. the anti-oblique well straightening BHA of the pressure of the drill as claimed in claim 1 big, it is characterised in that when being crept into straight hole, under
Portion's jig drill quickly, top jig drill quickly bend, make the BHA be in vortex motion state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035169.4A CN106703695B (en) | 2017-01-18 | 2017-01-18 | The anti-oblique well straightening drill assembly of big bit pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035169.4A CN106703695B (en) | 2017-01-18 | 2017-01-18 | The anti-oblique well straightening drill assembly of big bit pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703695A true CN106703695A (en) | 2017-05-24 |
| CN106703695B CN106703695B (en) | 2019-10-18 |
Family
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| CN201710035169.4A Active CN106703695B (en) | 2017-01-18 | 2017-01-18 | The anti-oblique well straightening drill assembly of big bit pressure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071342A (en) * | 2018-01-31 | 2018-05-25 | 吉林大学 | Synergistic effect formula drilling tool is laid particular stress in the adjustable shunting of one kind |
| CN108278083A (en) * | 2018-01-24 | 2018-07-13 | 西南石油大学 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
| CN109281612A (en) * | 2018-09-29 | 2019-01-29 | 中国石油大学(华东) | A kind of high speed rotating drilling anti-inclining drill combination |
| CN111140173A (en) * | 2019-12-30 | 2020-05-12 | 中煤科工集团西安研究院有限公司 | Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method |
| CN112610158A (en) * | 2020-12-14 | 2021-04-06 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN113513265A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Rigid-flexible deformation anti-deviation quick drilling tool combination |
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| CN203783463U (en) * | 2014-03-18 | 2014-08-20 | 四川海沃石油工程技术有限公司 | Anti-deviation straight-drilling combined drilling tool for drilling engineering |
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| US4015673A (en) * | 1974-07-11 | 1977-04-05 | Standard Oil Company (Indiana) | Directional drilling system |
| CN1056331A (en) * | 1990-05-09 | 1991-11-20 | 四川石油管理局钻采工艺研究所 | A kind of bottom way-type drilling unit that is used to reduce hole deviation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278083A (en) * | 2018-01-24 | 2018-07-13 | 西南石油大学 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
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| CN108071342A (en) * | 2018-01-31 | 2018-05-25 | 吉林大学 | Synergistic effect formula drilling tool is laid particular stress in the adjustable shunting of one kind |
| CN108071342B (en) * | 2018-01-31 | 2023-09-29 | 吉林大学 | Adjustable reposition of redundant personnel unbalance weight synergism formula drilling tool |
| CN109281612A (en) * | 2018-09-29 | 2019-01-29 | 中国石油大学(华东) | A kind of high speed rotating drilling anti-inclining drill combination |
| CN111140173A (en) * | 2019-12-30 | 2020-05-12 | 中煤科工集团西安研究院有限公司 | Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method |
| CN111140173B (en) * | 2019-12-30 | 2021-06-01 | 中煤科工集团西安研究院有限公司 | Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method |
| CN113513265A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Rigid-flexible deformation anti-deviation quick drilling tool combination |
| CN112610158A (en) * | 2020-12-14 | 2021-04-06 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
| CN112610158B (en) * | 2020-12-14 | 2022-09-13 | 中国石油大学(华东) | Intelligent vertical drilling system and drilling method |
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| Publication number | Publication date |
|---|---|
| CN106703695B (en) | 2019-10-18 |
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