CN102828691A - Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit - Google Patents
Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit Download PDFInfo
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- CN102828691A CN102828691A CN2012102720722A CN201210272072A CN102828691A CN 102828691 A CN102828691 A CN 102828691A CN 2012102720722 A CN2012102720722 A CN 2012102720722A CN 201210272072 A CN201210272072 A CN 201210272072A CN 102828691 A CN102828691 A CN 102828691A
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Abstract
The invention discloses a packed hole deviation control and near-drill-bit decompression compound way-type drilling unit which is mainly used for solving the problem that the existing way-type drilling unit cannot realize the deviation control and quick drill of a straight hole at the same time. The packed hole deviation control and near-drill-bit decompression compound way-type drilling unit is characterized in that an upper packed hole stabilizer (2) with a rotatable outer body is connected below a drill collar (1), a power drilling tool (3) with a near-drill-bit packed hole stabilizer is connected below the upper packed hole stabilizer (2) with the rotatable outer body, a nipple (4) with a helical blade is connected below the power drilling tool (3), a lower packed hole stabilizer (5) with a rotatable outer body is connected below the nipple (4), and a drill bit (6) is connected below the lower packed hole stabilizer (5) with the rotatable outer body. The packed hole deviation control and near-drill-bit decompression compound way-type drilling unit has the characteristic of integrating and applying three types of technologies of deviation control and quick drill of the straight hole, decompression drilling and compound drilling.
Description
Technical field
The present invention relates to the used drilling tool of a kind of oil drilling, especially meet the eye on every side the combined drilling way-type drilling unit of anti-oblique and near drill bit step-down.
Background technology
Way-type drilling unit is that oil drilling must used drilling tool.And existing way-type drilling unit influences drilling well speed-raising effect and drilling cost because reasons in structure exists and can't realize the anti-oblique of straight hole simultaneously and beat fast problem.
Summary of the invention
Can't realize the tiltedly anti-of straight hole simultaneously and beat fast problem in order to solve existing way-type drilling unit.The present invention provides a kind of combined drilling way-type drilling unit of meeting the eye on every side anti-oblique and near drill bit step-down.This combined drilling way-type drilling unit of meeting the eye on every side anti-oblique and near drill bit step-down has the characteristics of deviation prevention and fast straight well, step-down drilling well, three kinds of technological incorporation application of combined drilling.
Technical scheme of the present invention is: this combined drilling way-type drilling unit of meeting the eye on every side anti-oblique and near drill bit step-down comprises that drill collar, ectosome meet the eye on every side stabilizer, power drilling tool, pipe nipple, ectosome on rotatable and meet the eye on every side stabilizer and drill bit under rotatable.Be connected with the rotatable ectosome of ectosome under the drill collar and meet the eye on every side stabilizer on rotatable; Meet the eye on every side on ectosome is rotatable to be connected with under the stabilizer and have the power drilling tool that nearly drill bit is met the eye on every side stabilizer; Be connected with the pipe nipple that has helical blade under the power drilling tool; Be connected with the rotatable ectosome of ectosome under the pipe nipple and meet the eye on every side stabilizer under rotatable, meet the eye on every side under the stabilizer under ectosome is rotatable and be connected with drill bit.
The present invention has following beneficial effect: this combined drilling way-type drilling unit of meeting the eye on every side anti-oblique and near drill bit step-down is met the eye on every side stabilizer owing to being connected with the rotatable ectosome of ectosome under the employing drill collar on rotatable; Meet the eye on every side on ectosome is rotatable to be connected with under the stabilizer and have the power drilling tool that nearly drill bit is met the eye on every side stabilizer; Be connected with the pipe nipple that has helical blade under the power drilling tool; Be connected with the rotatable ectosome of ectosome under the pipe nipple and meet the eye on every side stabilizer under rotatable, meet the eye on every side under the stabilizer under ectosome is rotatable and be connected with drill bit structure.Utilization utilizes drill bit, the rotatable ectosome of ectosome to meet the eye on every side stabilizer and the rotatable nearly drill bit of meeting the eye on every side down on stabilizer, the power drilling tool of ectosome on rotatable to meet the eye on every side stabilizer and form packed hole assembly; In the process that drilling tool rotates at a high speed; Ectosome and drilling tool rotate relatively, and the wing set upright by spiral and the borehole wall keeps static relatively, thereby forms a stable fulcrum; Improve BHA and prevented tiltedly, beat straight ability, reached the anti-oblique purpose of straight hole.The pipe nipple that utilizes power drilling tool and surface drive to have helical blade rotates at a high speed; Power drilling tool is not with bent angle;, the rotation of the high speed of power drilling tool and surface drive makes the quick lifting that makes progress of fluid between the borehole wall and the drilling tool under driving; Simultaneously stabilizer, ectosome are rotatable meet the eye on every side approximate confined space of formation between stabilizer and the borehole wall three down because the nearly drill bit of power drilling tool is met the eye on every side; And then form the local suction effect, realize the suck purge of local step-down of nearly drill bit and shaft bottom landwaste.Utilize power drilling tool to realize compound creeping into; Drill bit is various high speed rock bit or the PDC drill bits that satisfy requirement of engineering, can adapt to the compound high rotating speed that creeps into.The power drilling tool unit head partly connects the rotatable stabilizer of meeting the eye on every side of ectosome simultaneously, and this outer body portion of meeting the eye on every side stabilizer is not rotated with power head height speed, thereby has reduced the loss of power drilling tool moment of torsion.Obtain higher rate of penetration, reach straight hole and beat fast purpose.This combined drilling way-type drilling unit is suitable for preventing tiltedly, beating soon of straight hole drilling well.This combined drilling way-type drilling unit has realized that the packed hole assembly deviation control with drilling straight well is technological, combined drilling is technological, the fusion of step-down drilling technology.When having kept packed hole assembly deviation control with drilling straight well ability, further improved the rotary speed of drill bit; Form local annular space pumped down effect at nearly drill bit place, improved the cleaning efficiency of shaft bottom landwaste, reduced the compacting effect of rock stratum, shaft bottom; Realized the deviation prevention and fast of straight hole.And adopted the rotatable stabilizer of meeting the eye on every side of ectosome in the BHA, further reduced the drilling tool moment of torsion.This combined drilling way-type drilling unit of meeting the eye on every side anti-oblique and near drill bit step-down has the characteristics of deviation prevention and fast straight well, step-down drilling well, three kinds of technological incorporation application of combined drilling thus.This combined drilling way-type drilling unit realizes that straight hole is tiltedly anti-and play fast combination, has fast, the anti-characteristics that oblique ability is strong, cost is low of bit speed.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
1-drill collar among the figure is met the eye on every side stabilizer on the 2-ectosome is rotatable, the 3-power drilling tool, and the 4-pipe nipple is met the eye on every side stabilizer under the 5-ectosome is rotatable, the 6-drill bit.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
Shown in accompanying drawing, this combined drilling way-type drilling unit of meeting the eye on every side anti-oblique and near drill bit step-down comprises that drill collar 1, ectosome meet the eye on every side stabilizer 2, power drilling tool 3, pipe nipple 4, ectosome on rotatable and meet the eye on every side stabilizer 5 and drill bit 6 under rotatable.Drill collar is connected with the rotatable ectosome of ectosome for 1 time and meet the eye on every side stabilizer 2 on rotatable; Meeting the eye on every side stabilizer on ectosome is rotatable is connected with for 2 times and has the power drilling tool 3 that nearly drill bit is met the eye on every side stabilizer; Power drilling tool is connected with the pipe nipple 4 that has helical blade for 3 times; Pipe nipple is connected with the rotatable ectosome of ectosome for 4 times and meet the eye on every side stabilizer 5 under rotatable, meet the eye on every side stabilizer under ectosome is rotatable and is connected with drill bit 65 times.Utilizing drill bit 6, ectosome to meet the eye on every side stabilizer 2 and the rotatable nearly drill bit of meeting the eye on every side down on stabilizer 5, the power drilling tool 36 of ectosome on rotatable meet the eye on every side stabilizer and forms packed hole assembly; Meet the eye on every side the rotatable nearly drill bit of meeting the eye on every side on stabilizer 5 and the power drilling tool 3 down of stabilizer 2, ectosome on the rotatable ectosome of above-mentioned ectosome is rotatable and meet the eye on every side stabilizer; Be the helical form stabilizer; Have 3-5 bar spiral to set upright the wing on it, and external diameter to be consistent, all less than borehole diameter 1mm-3mm.Simultaneously the rotatable ectosome of above-mentioned ectosome is met the eye on every side stabilizer 2 on rotatable and is met the eye on every side stabilizer 5 with ectosome under rotatable; Spiral is set upright the wing on the stabilizer ectosome; In the process that drilling tool rotates at a high speed; Meet the eye on every side stabilizer 2 on ectosome is rotatable and rotate relatively with rotatable ectosome and the drilling tool of meeting the eye on every side on the stabilizer 5 down of ectosome, the wing set upright by spiral and the borehole wall keeps static relatively, thereby forms a stable fulcrum; Improve BHA and prevented tiltedly, beat straight ability, reached the anti-oblique purpose of straight hole.Utilize power drilling tool 3 and surface drive to have pipe nipple 4 rotation at a high speed of helical blade; Power drilling tool 3 is not with bent angle; The pipe nipple 4 whole maximum outside diameters that have a helical blade are met the eye on every side the maximum outside diameter of stabilizer on rotatable less than the rotatable ectosome of ectosome; And the design of helical blade and power drilling tool direction of rotation are complementary;, the rotation of the high speed of power drilling tool and surface drive makes the quick lifting that makes progress of fluid between the borehole wall and the drilling tool under driving; Simultaneously stabilizer and ectosome are rotatable meet the eye on every side approximate confined space of formation between stabilizer 5 and the borehole wall three down because the nearly drill bit of power drilling tool 3 is met the eye on every side; And then form the local suction effect, realize the suck purge of local step-down of nearly drill bit and shaft bottom landwaste.Utilize power drilling tool 3 to realize compound creeping into; Drill bit 6 is various high speed rock bit or the PDC drill bits that satisfy requirement of engineering, can adapt to the compound high rotating speed that creeps into.Power drilling tool 3 unit heads partly connect the rotatable stabilizer of meeting the eye on every side of ectosome simultaneously, and this outer body portion of meeting the eye on every side stabilizer is not rotated with power head height speed, thereby have reduced the loss of power drilling tool moment of torsion.Obtain higher rate of penetration, reach the purpose that straight well is sharp-eyed and is beaten.
This advantage of meeting the eye on every side the combined drilling way-type drilling unit of anti-oblique and near drill bit step-down is to have realized that the packed hole assembly deviation control with drilling straight well is technological, combined drilling is technological, the fusion of step-down drilling technology.Utilize the rotatable nearly drill bit of meeting the eye on every side on stabilizer and the power drilling tool of ectosome to meet the eye on every side stabilizer and satisfied the packed hole assembly designing requirement, realized anti-oblique operation.Utilize power drilling tool and the pipe nipple that has helical blade, realized the lifting of annular fluid between the borehole wall and the drilling tool, form the local step-down and the landwaste suck purge of nearly bit part, the secondary that has reduced landwaste rolls.Drill bit obtains higher rate of penetration by surface drive and the compound driving of mud motor simultaneously, has realized beating fast purpose.This BHA is fit to the drilling fluid drilling well.
Claims (1)
1. meet the eye on every side the combined drilling way-type drilling unit of preventing oblique and near drill bit step-down for one kind; Comprise that drill collar (1), ectosome meet the eye on every side stabilizer (2), power drilling tool (3), pipe nipple (4), ectosome on rotatable and meet the eye on every side stabilizer (5) and drill bit (6) under rotatable; It is characterized in that: be connected with the rotatable ectosome of ectosome under the drill collar (1) and meet the eye on every side stabilizer (2) on rotatable; Meet the eye on every side on ectosome is rotatable to be connected with under the stabilizer (2) and have nearly drill bit and meet the eye on every side the power drilling tool of stabilizer (3); Be connected with the pipe nipple (4) that has helical blade under the power drilling tool (3); Be connected with the rotatable ectosome of ectosome under the pipe nipple (4) and meet the eye on every side stabilizer (5) under rotatable, meet the eye on every side under ectosome is rotatable and be connected with drill bit (6) under the stabilizer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102720722A CN102828691A (en) | 2012-08-01 | 2012-08-01 | Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102720722A CN102828691A (en) | 2012-08-01 | 2012-08-01 | Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828691A true CN102828691A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102720722A Pending CN102828691A (en) | 2012-08-01 | 2012-08-01 | Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit |
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| CN (1) | CN102828691A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141464A (en) * | 2014-07-28 | 2014-11-12 | 东北石油大学 | Horizontal well cleaning tool |
| CN107575178A (en) * | 2017-10-30 | 2018-01-12 | 中国石油大学(北京) | A kind of decompression pipe nipple for controlling wellbore annulus pressure |
| WO2018107712A1 (en) * | 2016-12-15 | 2018-06-21 | 中国矿业大学 | Straight hole drilling method for drilling machine |
| CN113882805A (en) * | 2021-08-31 | 2022-01-04 | 中国石油天然气集团有限公司 | Drilling tool combination capable of drilling easily-inclined and difficultly-drilled stratum quickly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167182Y (en) * | 1993-06-25 | 1994-06-01 | 刘文占 | Anchoring means for drilling |
| CN101260783A (en) * | 2008-02-29 | 2008-09-10 | 上海大学 | Prebending kinetics deviation control and fast drilling method |
| CN201206425Y (en) * | 2008-05-15 | 2009-03-11 | 西部钻探吐哈钻井公司 | Anti-oblique make-up of string suitable for bad ground |
| CN102242603A (en) * | 2011-07-18 | 2011-11-16 | 上海大学 | Bottom drilling tool combination with double stabilizers resisting deviation by using prebuckling dynamics |
-
2012
- 2012-08-01 CN CN2012102720722A patent/CN102828691A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167182Y (en) * | 1993-06-25 | 1994-06-01 | 刘文占 | Anchoring means for drilling |
| CN101260783A (en) * | 2008-02-29 | 2008-09-10 | 上海大学 | Prebending kinetics deviation control and fast drilling method |
| CN201206425Y (en) * | 2008-05-15 | 2009-03-11 | 西部钻探吐哈钻井公司 | Anti-oblique make-up of string suitable for bad ground |
| CN102242603A (en) * | 2011-07-18 | 2011-11-16 | 上海大学 | Bottom drilling tool combination with double stabilizers resisting deviation by using prebuckling dynamics |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141464A (en) * | 2014-07-28 | 2014-11-12 | 东北石油大学 | Horizontal well cleaning tool |
| CN104141464B (en) * | 2014-07-28 | 2016-06-22 | 东北石油大学 | Horizontal well borehole cleaning tool |
| WO2018107712A1 (en) * | 2016-12-15 | 2018-06-21 | 中国矿业大学 | Straight hole drilling method for drilling machine |
| CN107575178A (en) * | 2017-10-30 | 2018-01-12 | 中国石油大学(北京) | A kind of decompression pipe nipple for controlling wellbore annulus pressure |
| CN107575178B (en) * | 2017-10-30 | 2020-07-31 | 中国石油大学(北京) | Pressure reducing nipple for controlling well bore annular pressure |
| CN113882805A (en) * | 2021-08-31 | 2022-01-04 | 中国石油天然气集团有限公司 | Drilling tool combination capable of drilling easily-inclined and difficultly-drilled stratum quickly |
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Application publication date: 20121219 |