CN104165051A - Well hole high-low side identification mechanism for automatic vertical drilling tool - Google Patents
Well hole high-low side identification mechanism for automatic vertical drilling tool Download PDFInfo
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- CN104165051A CN104165051A CN201310184472.2A CN201310184472A CN104165051A CN 104165051 A CN104165051 A CN 104165051A CN 201310184472 A CN201310184472 A CN 201310184472A CN 104165051 A CN104165051 A CN 104165051A
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- central axis
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- identification mechanism
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Abstract
The invention provides a well hole high-low edge identification mechanism for an automatic vertical drilling tool, and belongs to the field of oil well drilling. The mechanism comprises a sleeve, a weighting block, two bearings, two baffles, a center shaft and a drilling fluid guide plate. The center shaft is supported in the sleeve through the upper bearing, the lower bearing, the upper baffle and the lower baffle in a rotating mode; the weighting block is fixed to one side of the center shaft between the two bearings, and a clearance is reserved between the weighting block and the inner wall of the sleeve; the drilling fluid guide plate is mounted at the bottom end of the center shaft, and a flow guide hole is formed in the drilling fluid guide plate and located in the other side, opposite to the weighting block, of the center shaft; a constant torque device is installed on the top of the center shaft and can generate torque to the center shaft, the torque is equal to friction torque generated at the two bearings and opposite to the friction torque in direction, and therefore the center shaft is prevented from rotating. According to the mechanism, the high edge and the low edge of a well hole can be accurately distinguished under the condition of a smaller hole deviation angle, for example, the hole deviation angle is less than 4 degrees.
Description
Technical field
The present invention relates to a kind of oil/gas drilling instrument, particularly a kind of well high-low side identification mechanism for automatic vertical drill tools.
Background technology
Well deflection is the technical barrier often running in oil/gas drilling engineering, directly affects wellbore quality and bit speed, is seriously restricting production efficiency and the benefit of the resources such as underground oil and gas.No matter be straight well, or directional well, horizontal well, all there is hole deviation control problem.Particularly, in the drilling engineering of the easy tiltedly layers such as the steep structure of height, hole deviation problem is very serious.At present, hole deviation control is still mainly carried out with pendulum assembly in domestic scene, meets easily tiltedly when layer even " light pressure hung up and beaten " guarantees hole deviation control quality, thereby makes the contradiction of fast drilling and deviation control with drilling straight well more outstanding normally to sacrifice the pressure of the drill boring.
In order to solve this contradiction, related researcher is actively developing mechanical type automatic vertical drill tools.But no matter the automatic vertical drill tools of which kind of type can be divided into two large divisions: the one, under the operating mode of drill string rotating, determine the identification mechanism of well high-low side, the 2nd, produce thrust and make the executing agency of drill bit to well low limit cutting.Therefore, automatic vertical drill tools is in the time of work, ensure accurately to judge well high-low side under the state along with drill string rotating, and providing clear and definite signal to guide the thrust block pad of the drill tools that hangs down playing a role in the time rotating to well flash, the backup borehole wall makes drill bit cut more the low limit of well to reach the target of drop angle.
But, the well high-low side recognition device of automatic vertical drilling system of the prior art is made up of the electronic unit of sensor, chip class conventionally, although it possesses the advantages such as precision is good, sensitivity is high, but owing to being subject to technological service selling at exorbitant prices and the restriction for factors such as the condition of work such as temperature, vibration requirement harshnesses, this class high-tech is still difficult to apply.
The well high-low side identification mechanism of the mechanical type automatic vertical drill tools of domestic development is only identified by gravity mode, the Patent Application Publication that for example publication number is CN1676862A a kind of mechanical type automatic vertical drill tools, but this mechanical type automatic vertical drill tools is in the time that hole deviation is very little, there is serious defect: in the time that housing rotates under drill string drives, housing has the trend that drives axle rotation by bearing, in the time that hole deviation is larger, the weight component of counterweight can produce the friction torque that a moment of torsion produces to overcome bearing place, thereby axle is not rotated, counterweight is always in the low limit of well.But while diminishing along with hole deviation, due to the variation of balance position, the moment of torsion that the weight component of counterweight produces also diminishes thereupon.Experiment and theoretical calculating show, if the moment of torsion that only depends on counterweight to produce, in the time that hole angle is less than 4 °, the moment of torsion that weighting block produces will be not enough to stop axle rotation, once and axle is rotated, the upper moushroom valve being connected with axle bottom rotates, thereby causes the fan-shaped eccentric runner of moushroom valve no longer in well flash thereupon, therefore also just the signal of well high-low side cannot be offered to executing agency, lose the function of identification well high-low side.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of well high-low side identification mechanism of the automatic vertical drill tools that also can accurately distinguish well high-low side under less hole deviation condition.
For achieving the above object, the present invention takes following technical scheme:
The present invention proposes a kind of well high-low side identification mechanism for automatic vertical drill tools, it comprises sleeve, weighting block, two bearings, two baffle plates, central axis and drilling fluid guide strips, and central axis is rotatably supported in sleeve by upper and lower two bearings and upper and lower two baffle plates; Weighting block is fixed on two central axis one sides between bearing, and and the inwall of sleeve between leave gap; Drilling fluid guide strip is arranged on the bottom of central axis, on drilling fluid guide strip, offer pod apertures, and pod apertures is in the central axis opposite side relative with weighting block, wherein: at the top of central axis, persevering torquer is installed, permanent torquer can produce the friction torque equal and opposite in direction producing with two bearing places to central axis, the moment of torsion of opposite direction, to stop central axis rotation.
In one embodiment: permanent torquer comprises the friction plate that is fixed on central axis top, radially be arranged on the turbine on friction plate, be fixed on the regulating part of turbine top, and the elastic component of connection turbine and regulating part, change the deformation quantity of elastic component by regulating part, the torque can regulating constant torquer producing, makes it to equal the friction torque that two bearing places produce.
In one embodiment: regulating part adopts bolt, elastic component adopts spring, and spring fitting is between the adapted nut of turbine and bolt.
In one embodiment: weighting block is shaped as half hollow cone and half cylindrical assembly shape.
In one embodiment: pod apertures is fan-shaped, circular, ellipse or rectangle.
In one embodiment: the lower end of being fixed on the sleeve lining of lower baffle plate has ring-type support protrusion.
In one embodiment: sleeve two ends inwall is uncovered outside annular slope.
The present invention is owing to taking above technical scheme, and there is following beneficial effect: 1, mechanism according to the present invention is provided with turbine on the top of central axis by permanent torquer, turbine can produce moment of torsion under drilling fluid impacts, the moment of torsion that turbine is produced by regulating constant torquer balances out the moment of torsion that bearing friction power produces, to stop central axis rotation, pod apertures on guarantee drilling fluid guide strip is all the time in well flash, thereby make according to mechanism of the present invention can be under less hole deviation condition (for example, when hole angle is less than 4 °) also can accurately distinguish well high-low side.Therefore, under drilling fluid impact force and gravity synergy, as long as there is hole angle, this mechanism just can continuously and effectively identify well flash and low limit, and then provides signal accurately for actuating unit.2, mechanism according to the present invention is mechanical structure firmly, and not only simple and reliable for structure, cost is low, and is not subject to the impact of downhole temperature, vibrates also very little on its impact.As can be seen here, the present invention can break through constraint and the drilling assembly (as pendulum assembly etc.) of traditional anti-oblique theory of statics, be different from again automatic vertical drilling system expensive in prior art, therefore in oil/gas drilling engineering, be with a wide range of applications.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing.But only the providing in order to understand better the present invention of accompanying drawing is provided, they not should be understood to limitation of the present invention.
Fig. 1 is according to the structural representation of well high-low side identification mechanism of the present invention;
Fig. 2 is along the A-A line sectional view in Fig. 1;
Fig. 3 is along the B-B line sectional view in Fig. 1.
Detailed description of the invention
Contrast accompanying drawing below, and by the description to embodiment, the present invention is described in further detail.
Fig. 1-Fig. 3 shown according to well high-low side identification mechanism of the present invention, and it comprises sleeve 18, weighting block 5, two bearings (upper bearing (metal) 4 and lower bearing 10), two baffle plate (overhead gage 9 and lower baffle plate 6), central axis 20 and drilling fluid guide strips 7 with through hole.
Central axis 20 extends and is fixed to the T font disk of friction plate 8 belows, and T font disk is provided with another central axis, for turbine structure 3, elastic component 2 and bolt 1 etc. are installed.Central axis is supported in sleeve 18 by upper and lower two bearings (4,10) and upper and lower two baffle plates (9,6), and can freely rotate with respect to sleeve 18.
Weighting block 5 is welded on central axis 20 1 sides between two bearings (4,10), and and the inwall of sleeve 18 between leave gap.
Drilling fluid guide strip 7 is arranged on the bottom of central axis 20, and drilling fluid guide strip 7 is connected with (not shown) executing agency.On drilling fluid guide strip 7, offer pod apertures 19.Pod apertures 19 is preferably fan-shaped, also can be circle, ellipse or rectangle.Pod apertures 19 can import the cleaner for high-pressure drilling fluid in drill string executing agency to drive drill bit work, and drilling fluid guide strip 7 will ensure the opposite side of pod apertures 19 in the central axis relative with weighting block 5 20 while being arranged on central axis 20.In the time that weighting block 5 is partial to the low limit of well because of gravity, the pod apertures 19 on drilling fluid guide strip 7, just always in well flash, therefore can make executing agency produce the backup power towards well flash, thereby reach drop angle effect like this.
This mechanism also comprises a permanent torquer.Permanent torquer comprises turbine structure 3, and turbine structure 3 is arranged on the central axis of T font disk, and the I-shaped disk below under turbine structure is provided with friction plate 8.The T font disk of friction plate 8 belows and the I-shaped disk of top separate, and friction plate 8 is arranged on I-shaped disk.Turbine 3 is fixed on I-shaped disk, and I-shaped disk bottom contacts with T font disk top by friction plate, and T font disk is fixed on the top of central axis 20.Turbine 3 tops are provided with a regulating part, an elastic component is installed between turbine 3 and regulating part, deformation quantity that can adjustable elastic part by regulating part, and then regulate the contact force (turbine and I-shaped disk can be one, and I-shaped disk contacts with friction plate) between turbine and friction plate 8.
In a preferred embodiment, the shape of weighting block 5 can be half hollow cone and half cylindrical assembly shape, this design can be in the time that drilling fluid passes through well high-low side recognition device at a high speed, drilling fluid is played to shunting action, impact on weighting block while reducing drilling fluid by device, and then the accuracy of identification of raising well high-low side recognition device.
In a preferred embodiment, regulating part can adopt bolt, and elastic component can adopt spring.
In a preferred embodiment, the lower end of being fixed on the sleeve lining of lower baffle plate has ring-type support protrusion.
In a preferred embodiment, sleeve two ends inwall is uncovered outside annular slope, is convenient to connect miscellaneous part and drilling fluid and enters well high-low side recognition device.
The present invention in use, in the time that well hole deviation exceeds standard, is lowered to automatic vertical drill tools, the entry into service of well high-low side structure, and the sleeve being connected with drill string rotates thereupon.Due to the frictional force at bearing place, produce centering spindle moment, this moment of torsion has the trend of ordering about central axis rotation, weighting block 5 is secundly under the effect of gravity, form resistive torque, stoped the rotation of central axis, the drilling fluid guide strip being therefore connected with central axis bottom is no longer rotation also, makes drilling liquid pressure pass to the executing agency of automatic vertical drill tools by the pod apertures orientation on drilling fluid guide strip.
With drill string rotating time, the drilling fluid (being generally 20-30L/s) that has a larger discharge capacity from drill string inside and automatic vertical drill tools inside flow through, drilling liquid flow can drive turbine rotation in the time of turbine, while rotation based on law of friction turbine, can produce a moment of torsion to central axis, by the direction of design turbo blade, make it the moment of torsion of generation and the friction torque opposite direction that bearing place produces.Meanwhile, change the deformation quantity of elastic component by regulating part to regulate the moment of torsion of turbine generation, make it to equal the friction torque that bearing place produces, in the situation that torque equal direction is contrary, just in time can offset like this friction torque that bearing place produces.Because the contact force between turbine and central axis is determined by elastic component pressure and turbine gravity, be the power remaining unchanged, and friction factor is determined also to remain unchanged by friction plate.Therefore, no matter how the flow of drilling fluid changes, the moment of torsion that turbine produces all remains unchanged, and can offset accurately the friction torque that bearing place produces.
Due to turbine produce moment of torsion and hole deviation it doesn't matter, therefore when drop angle is during to the oblique situation of The Small Well, turbine moment of torsion still can overcome the friction torque that bearing place produces, make weighting block under Action of Gravity Field, always be partial to the low limit of well one side, and do not need to remove to overcome by the limited weight component of weighting block the friction torque that bearing place produces, thereby make the present invention under less hole deviation condition, accurately distinguish well high-low side.As can be seen here, under drilling fluid impact force and gravity synergy, as long as there is hole angle, the present invention just can continuously and effectively identify well flash and low limit, and then provides signal accurately for actuating unit.
The above specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention, within the spirit and principles in the present invention all, any amendment of making; protection scope of the present invention is equal to replacement, improvement etc., within all should be included in.
Claims (7)
1. the well high-low side identification mechanism for automatic vertical drill tools, it comprises sleeve, weighting block, two bearings, two baffle plates, central axis and drilling fluid guide strips, and described central axis is rotatably supported in described sleeve by upper and lower described two bearings and upper and lower described two baffle plates; Described weighting block is fixed on described central axis one side between described two bearings, and and the inwall of described sleeve between leave gap; Described drilling fluid guide strip is arranged on the bottom of described central axis, on described drilling fluid guide strip, offer pod apertures, and the opposite side of described pod apertures in the described central axis relative with described weighting block, at the top of described central axis, persevering torquer is installed, described permanent torquer can produce the friction torque equal and opposite in direction producing with described two bearing places, the moment of torsion of opposite direction to described central axis, to stop described central axis rotation.
2. a kind of well high-low side identification mechanism for automatic vertical drill tools according to claim 1, it is characterized in that, described permanent torquer comprises the friction plate that is fixed on described central axis top, radially be arranged on the turbine on described friction plate, be fixed on the regulating part of described turbine top, and connect the elastic component of described turbine and regulating part, change the deformation quantity of described elastic component by described regulating part, the torque that can regulate described permanent torquer to produce, makes it to equal the friction torque that described two bearing places produce.
3. a kind of well high-low side identification mechanism for automatic vertical drill tools according to claim 2, is characterized in that, described regulating part adopts bolt, and described elastic component adopts spring, and described spring fitting is between the adapted nut of described turbine and described bolt.
4. according to a kind of well high-low side identification mechanism for automatic vertical drill tools described in claim 1 or 2 or 3, it is characterized in that, described weighting block is shaped as half hollow cone and half cylindrical assembly shape.
5. according to a kind of well high-low side identification mechanism for automatic vertical drill tools described in any one in claim 1 to 4, it is characterized in that, described pod apertures is fan-shaped, circular, ellipse or rectangle.
6. according to a kind of well high-low side identification mechanism for automatic vertical drill tools described in any one in claim 1 to 5, it is characterized in that, the lower end of being fixed on the described sleeve lining of lower baffle plate has ring-type support protrusion.
7. according to a kind of well high-low side identification mechanism for automatic vertical drill tools described in any one in claim 1 to 6, it is characterized in that, described sleeve two ends inwall is uncovered outside annular slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184472.2A CN104165051B (en) | 2013-05-17 | 2013-05-17 | A kind of well high-low side identification mechanism for automatic vertical drill tools |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184472.2A CN104165051B (en) | 2013-05-17 | 2013-05-17 | A kind of well high-low side identification mechanism for automatic vertical drill tools |
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| CN104165051A true CN104165051A (en) | 2014-11-26 |
| CN104165051B CN104165051B (en) | 2017-07-07 |
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| CN201310184472.2A Active CN104165051B (en) | 2013-05-17 | 2013-05-17 | A kind of well high-low side identification mechanism for automatic vertical drill tools |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869840A (en) * | 2017-02-21 | 2017-06-20 | 中国地质科学院勘探技术研究所 | It is a kind of to prevent interior assembly with dynamic core drill single acting device |
| 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 |
| CN118049138A (en) * | 2024-04-16 | 2024-05-17 | 中国石油大学(华东) | Rotary steering drilling system and drilling method for geological drilling of high-temperature thick target layer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190122A (en) * | 1978-03-22 | 1980-02-26 | Arnold James F | Spaced weight relieved drill collar string |
| CN1676862A (en) * | 2005-04-14 | 2005-10-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Mechanical automatic vertical drilling tool |
| CN2784570Y (en) * | 2005-04-14 | 2006-05-31 | 中国石化集团胜利石油管理局钻井工艺研究院 | Mechanical automatic vertical drilling tool |
| CN201068734Y (en) * | 2007-07-06 | 2008-06-04 | 新疆石油管理局钻井工艺研究院 | Vertical drilling tool |
| CN101250982A (en) * | 2008-04-02 | 2008-08-27 | 刘宝林 | Mechanical automatic vertical drilling tool |
| CN101451425A (en) * | 2007-12-07 | 2009-06-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Shunt type automatic vertical well drilling tool suitable for gas drilling |
| CN202280424U (en) * | 2011-11-04 | 2012-06-20 | 中国石油天然气集团公司 | Upper suspended-type automatic deflection-control drilling tool |
-
2013
- 2013-05-17 CN CN201310184472.2A patent/CN104165051B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190122A (en) * | 1978-03-22 | 1980-02-26 | Arnold James F | Spaced weight relieved drill collar string |
| CN1676862A (en) * | 2005-04-14 | 2005-10-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Mechanical automatic vertical drilling tool |
| CN2784570Y (en) * | 2005-04-14 | 2006-05-31 | 中国石化集团胜利石油管理局钻井工艺研究院 | Mechanical automatic vertical drilling tool |
| CN201068734Y (en) * | 2007-07-06 | 2008-06-04 | 新疆石油管理局钻井工艺研究院 | Vertical drilling tool |
| CN101451425A (en) * | 2007-12-07 | 2009-06-10 | 中国石化集团胜利石油管理局钻井工艺研究院 | Shunt type automatic vertical well drilling tool suitable for gas drilling |
| CN101250982A (en) * | 2008-04-02 | 2008-08-27 | 刘宝林 | Mechanical automatic vertical drilling tool |
| CN202280424U (en) * | 2011-11-04 | 2012-06-20 | 中国石油天然气集团公司 | Upper suspended-type automatic deflection-control drilling tool |
Non-Patent Citations (1)
| Title |
|---|
| 韩来聚等: "机械式自动垂直钻井工具的研制", 《石油学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869840A (en) * | 2017-02-21 | 2017-06-20 | 中国地质科学院勘探技术研究所 | It is a kind of to prevent interior assembly with dynamic core drill single acting device |
| 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 |
| CN118049138A (en) * | 2024-04-16 | 2024-05-17 | 中国石油大学(华东) | Rotary steering drilling system and drilling method for geological drilling of high-temperature thick target layer |
| CN118049138B (en) * | 2024-04-16 | 2024-06-18 | 中国石油大学(华东) | Rotary steering drilling system and drilling method for geological drilling of high-temperature thick target layer |
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| CN104165051B (en) | 2017-07-07 |
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