CN106368624A - Angle fine-adjustment device for balancing drilling pressure - Google Patents
Angle fine-adjustment device for balancing drilling pressure Download PDFInfo
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- CN106368624A CN106368624A CN201610884626.2A CN201610884626A CN106368624A CN 106368624 A CN106368624 A CN 106368624A CN 201610884626 A CN201610884626 A CN 201610884626A CN 106368624 A CN106368624 A CN 106368624A
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- drill
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- pressure
- drill bit
- connecting seat
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- 238000005553 drilling Methods 0.000 title abstract description 41
- 239000010720 hydraulic oil Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011796 hollow space material Substances 0.000 claims description 3
- 241001473780 Sideroxylon lanuginosum Species 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
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- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
- 239000002002 slurry 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
- 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
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides an angle fine-adjustment device for balancing the drilling pressure. The angle fine-adjustment device comprises a plurality of piston cavities and a lower shell, wherein the piston cavities are formed in an upper shell, the piston cavities communicate with a plurality of hydraulic push columns through communicating channels, and a plurality of limiting springs are correspondingly welded between a plurality of push plates and the hydraulic push columns; the lower shell is connected with the upper shell, a plurality of piston grooves are formed in the lower shell, the hydraulic push columns communicate with a plurality of pistons and make contact with the push plates, a plurality of connecting rods are connected with the upper shell through the piston grooves, and a plurality of elastic components are arranged at the lower ends of the pistons; and the lower shell and a drill bit connecting base are connected through the connecting rods. According to the angle fine-adjustment device for balancing the drilling pressure, non-uniform stress of a drill bit is converted into lateral thrust, and the lateral thrust can make a drill stem restore to the vertical position. By adoption of the angle fine-adjustment device for balancing the drilling pressure, the drilling pressure of the drill bit can be balanced and the well track can be adjusted automatically during well drilling, and an expected track effect is achieved.
Description
Technical field
The present invention relates to oil drilling field, more particularly, to a kind of balance the pressure of the drill vernier angle device.
Background technology
The complex formation variation met, in drilling process, is bored in oil field at present.Due to stratigraphic dip, formation rock hardness is divided
Cloth is uneven, and drill bit can be made to deviate original planned orbit in drilling process, can with stratigraphic dip and formation hardness little one
Side offsets.
In China, the major technique adopting for " deviation control with drilling straight well " of straight well at present has packed hole assembly, and pendulum combines,
Off-axis combines, and flexible combination and the guide digging using power drilling tool carry out well straightening etc..Although these methods are all in certain journey
Hole deviation can be solved the problems, such as on degree, but have respective limitation.For example it is often necessary to multiple method use cooperatively (such as meet the eye on every side
BHA and the cooperation of pendulum assembly)；Need field engineering technical staff according to actual measurement hole deviation, to bottom hole assemblies
And drilling parameter (the pressure of the drill, drill string rotating speed, drilling liquid pressure etc.) is rationally arranged (bha)；It is difficult to control hole angle
Within 1 ° etc..Nor meet the needs of drilling straight-hole under the complex situations such as high-dip structure, deep-well, new anti-oblique in the urgent need to developing
Technology.How quickly to adjust hole deviation and the applying of the pressure of the drill in the range of well track design requirement, can not be affected simultaneously again,
Make the uniform force of drill bit.Straight well how anti-oblique fast beats and is necessary for that the pressure of the drill to be solved uniformly applies and hole deviation is quick-adjustsing asks
Topic, only solves this problem, just enables real anti-oblique fast beat.
A kind of automatic vertical drilling tool of the prior art.Automatic vertical drilling tool includes housing, one end of housing
It is connected with adapter, the other end is connected with drill string, being provided with lower moushroom valve with grabbing inside the shell ends being connected, lower moushroom valve and shell
Body is together with drill string rotating；Want that coordinate is provided with flow guiding head in housing with adapter, flow guiding head is connected with heart axle one end；The heart
The axle other end is connected with upper moushroom valve, and upper moushroom valve is coordinated with lower moushroom valve, is provided with eccentric runner in upper moushroom valve, lower moushroom valve is provided with water conservancy diversion
Hole, the pod apertures of lower moushroom valve are connected with rotating to be staggered with eccentric runner periodicity；It is additionally provided with lower moushroom valve corresponding end in housing
Piston cylinder, is provided with piston in the phase, be provided with relief hole on piston cylinder, and pressure release hole site is coordinated with water conservancy diversion hole site, and lower moushroom valve exists
When rotation is, pod apertures are also periodically staggered with relief hole and connect；It is provided with counterweight in housing parts inwall vertically.
Automatic vertical drilling tool achieves and automatically adjusts vertical drilling.But discharge orifice is that periodically stagger can not be stable
Control pressure exports, and bit force inequality still exists.Down-hole equipment vibrations are strong, though have counterweight to be washed away by mud being difficult to
Precise control.
Defect therefore of the prior art is: in drill bit drilling process, due to stratigraphic dip, formation rock hardness is divided
Cloth is uneven, and drill bit can be made to deviate original planned orbit in drilling process, can with stratigraphic dip and formation hardness little one
Side offsets.When bit inclination it is impossible in time quickly by drill bit adjustment, bit force is uneven, drill bit is made not enable to bore
During well, drill bit the pressure of the drill balances it is impossible to automatically adjust well track, and then does not enable expected path effect.
Content of the invention
For above-mentioned technical problem, the present invention provides a kind of balance the pressure of the drill vernier angle device, is existed using apparatus of the present invention
In drilling process, the uneven power of bit force is converted into lateral thrust, lateral thrust can make drill string return to upright position.Profit
Balancing drill the pressure of the drill during drilling well can be realized, automatically adjusted well track with this kind of design device, path effect expected from realization.
For solving above-mentioned technical problem, present invention provide the technical scheme that
The present invention provides a kind of balance the pressure of the drill vernier angle device, comprising:
It is arranged on the multiple piston cavities within upper shell, multiple described piston cavities are evenly distributed on described upper shell
Lower surface, multiple described piston cavities connect multiple hydraulic thrust posts by communicating passage, and multiple described piston cavities are used for placing
Piston and hydraulic oil, each piston cavity does not interfere with each other, corresponding welding between multiple described push pedals and multiple described hydraulic thrust posts
Multiple limit spring；
The lower house being connected with described upper shell, arranges multiple piston grooves, multiple described hydraulic thrusts inside described lower house
Post is communicated with multiple pistons, and the shape of described piston is consistent with the shape of described piston cavity, multiple described hydraulic thrust posts with many
Individual described push pedal contacts, and described push pedal can automatically retract the outside in described hydraulic thrust post in the case of not stressing, multiple
Described connecting rod is connected with described upper shell by multiple described piston grooves, and each connecting rod two ends is respectively connected with a bead, is formed
Ball-type connecting rod, multiple described piston are provided with multiple elastomeric elements；
By multiple described connecting rods, described lower house is connected with drill bit connecting seat；
Hydraulic oil in described upper casing body is squeezed into corresponding communicating passage in a piston cavity, will be described
The compression stress of hydraulic oil switchs to the thrust of multiple described hydraulic thrust posts, described piston up-down, described piston up-down
Maximum rising displacement is to described piston cavity topmost, and the maximum decline displacement of described piston up-down is to described piston
The bottom of cavity.
The technical scheme is that a kind of balance the pressure of the drill vernier angle device includes being arranged on multiple within upper shell
Piston cavity, multiple described piston cavities are evenly distributed on the lower surface of described upper shell, and multiple described piston cavities pass through even
Circulation passage connects multiple hydraulic thrust posts, and multiple described piston cavities are used for placing piston and hydraulic oil, and each piston cavity is mutually not
Interference, the multiple limit spring of corresponding welding between multiple described push pedals and multiple described hydraulic thrust posts；
The lower house being connected with described upper shell, arranges multiple piston grooves, multiple described hydraulic thrusts inside described lower house
Post is communicated with multiple pistons, and the shape of described piston is consistent with the shape of described piston cavity, multiple described hydraulic thrust posts with many
Individual described push pedal contacts, and described push pedal can automatically retract the outside in described hydraulic thrust post in the case of not stressing, multiple
Described connecting rod is connected with described upper shell by multiple described piston grooves, and each connecting rod two ends is respectively connected with a bead, is formed
Ball-type connecting rod, multiple described piston are provided with multiple elastomeric elements；
By multiple described connecting rods, described lower house is connected with drill bit connecting seat；
Hydraulic oil in described upper casing body is squeezed into corresponding communicating passage in a piston cavity, will be described
The compression stress of hydraulic oil switchs to the thrust of multiple described hydraulic thrust posts, described piston up-down, described piston up-down
Maximum rising displacement is to described piston cavity topmost, and the maximum decline displacement of described piston up-down is to described piston
The bottom of cavity.
A kind of balance the pressure of the drill vernier angle device of the present invention, will change originally because counterweight deflection mud is as pressure source
It is to cause work surface skew because drill bit is stressed inequality thus the compression stress that produces, be converted into the motive force of hydraulic oil, promote
Push pedal.Drill bit can make bit operation face tilt in drilling because of unbalance stress, and this will make under the rising side of drill bit side
Fall, the connecting rod rising the drill bit connecting seat of side also can rise, thus carrying piston to rise, causes hydraulic oil stream in piston cavity
Dynamic, so that the hydraulic thrust post of the other end in piston cavity is pushed out, so that push pedal is opened, make bit operation face recovery level.This device
Can timely be adjusted according to the change of drill bit the pressure of the drill and can be adjusted it is not necessary to spend great talent because of hole angle, the pressure of this device
System is the hydraulic type of sealing, has more stable pressure output, changes and is limited by mud flow rate and pump pressure.This device
Energy effectively well straightening and anti-oblique effect, can make well more smooth, and the down-hole bit freezing of reduction improves drilling speed.
Further, described drill bit connecting seat includes drill bit connecting seat top and drill bit connecting seat bottom；
Described drill bit connecting seat top is two parts composition, the hollow axle center of ball-type and drill bit connecting seat top chassis；Institute
State and around the center of circle in hollow axle center of ball-type, be evenly distributed with little ball groove and bolt hole, the hollow space of described ball-type can make mud
Pass therethrough, the other end of multiple described connecting rods is passed through multiple tie rod holes, on multiple described connecting rods and drill bit connecting seat top
The connecting rod sealing ring that makes of position flexible rubber；
The intermediate hollow of described drill bit connecting seat bottom, drill bit connecting seat bottom is cylinder, is distributed little around its center of circle
Ball groove and bolt hole, described drill bit connecting seat bottom connects described drill bit connecting seat top and drill bit, multiple described connecting rods
In one end sealing ball-type groove between.
Further, the material of described piston and described hydraulic thrust post is glomerocryst composite sheet.Glomerocryst composite sheet can bear height
Pressure is simultaneously wear-resisting, therefore does piston and hydraulic thrust post from glomerocryst composite sheet.
Further, described piston cavity exterior circumferential is provided with multiple bolts hole.
Further, the placing trough of push pedal is placed in the outer end setting of described communicating passage, and described push pedal is hinge push pedal.
Further, the junction between described upper shell and described lower house is provided with rubber blanket.Rubber blanket plays close
The effect of envelope.
Further, the material of described elastomeric element is steel wire.Steel wire tenacity is strong, can limit the flexible of hydraulic thrust post
Amount.
Further, it is evenly distributed with wear plate outside described push pedal.Wear plate is set outside push pedal, push pedal can be avoided
Abrasion, extend push pedal service life.
Further, described piston is arranged fluted, for placing seal rubber sleeve.On piston, the placement of setting groove is close
Sealing set, can make device sealing effectiveness more preferable.
Further, the outside of described upper shell is provided with water conservancy diversion mud ditch.
Brief description
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
In embodiment or description of the prior art, the accompanying drawing of required use is briefly described.
Fig. 1 shows that a kind of entirety of balancing drill the pressure of the drill vernier angle device that first embodiment of the invention is provided connects
Map interlinking；
Fig. 2 shows that a kind of entirety of balancing drill the pressure of the drill vernier angle device that first embodiment of the invention is provided is cutd open
Face figure；
Fig. 3 shows a kind of upper shell of balancing drill the pressure of the drill vernier angle device that first embodiment of the invention is provided
Overall appearance figure；
Fig. 4 shows a kind of upper shell of balancing drill the pressure of the drill vernier angle device that first embodiment of the invention is provided
Ground plan；
Fig. 5 shows that a kind of lower house of balancing drill the pressure of the drill vernier angle device that the present invention is provided is illustrated
Figure；
Fig. 6 shows a kind of column type piston of balancing drill the pressure of the drill vernier angle device and ball that the present invention provided
Shape connecting rod schematic diagram；
Fig. 7 shows a kind of push pedal of balancing drill the pressure of the drill vernier angle device and hydraulic thrust that the present invention provided
Post schematic diagram；
Fig. 8 shows on the drill bit connecting seat of a kind of balancing drill the pressure of the drill vernier angle device that the present invention is provided
Portion's schematic diagram；
Fig. 9 shows a kind of mensure pushing power to of balancing drill the pressure of the drill vernier angle device that the present invention is provided
Schematic device；
Figure 10 shows a kind of survey pushing power to of balancing drill the pressure of the drill vernier angle device that the present invention is provided
The pressure of the drill and push pedal power graph of relation in fixed；
Figure 11 shows a kind of survey pushing power to of balancing drill the pressure of the drill vernier angle device that the present invention is provided
Well straightening angle and drilling depth graph of a relation in fixed.
Specific embodiment
Below in conjunction with accompanying drawing, the embodiment of technical solution of the present invention is described in detail.Following examples are only used for
Clearly technical scheme is described, is therefore intended only as example, and the protection of the present invention can not be limited with this
Scope.
Embodiment one
Referring to Fig. 1 to Fig. 9, a kind of balance the pressure of the drill vernier angle device that embodiment one provides, comprising:
It is arranged on the multiple piston cavities 2 within upper shell 1, multiple piston cavities 2 are evenly distributed on the lower end of upper shell 1
Face, multiple piston cavities 2 connect multiple hydraulic thrust posts 19 by communicating passage 17, and multiple piston cavities 2 are used for placing piston 4 He
Hydraulic oil, each piston cavity 2 does not interfere with each other, the multiple spacing bullets of corresponding welding between multiple push pedals 18 and multiple hydraulic thrust posts 19
Spring 23；
The lower house 6 being connected with upper shell 1, lower house 6 is internal to arrange multiple piston grooves, multiple hydraulic thrust posts 19 with multiple
Piston 4 communicates, and the shape of piston 4 is consistent with the shape of piston cavity 2, and multiple hydraulic thrust posts 19 are contacted with multiple push pedals 18,
Push pedal 18 can automatically retract in the outside of hydraulic thrust post 19 in the case of not stressing, multiple connecting rods 13 pass through multiple piston grooves with
Upper shell 1 connects, and each connecting rod 13 two ends is respectively connected with a bead 14, forms spherical connecting bar 5, the setting of multiple piston 4 lower ends
There are multiple elastomeric elements 20；
By multiple connecting rods 13, lower house 6 is connected with drill bit connecting seat；
Hydraulic oil in upper shell 1 is squeezed into corresponding communicating passage 17 in a piston cavity 2, by hydraulic pressure
The compression stress of oil switchs to the thrust of multiple hydraulic thrust posts 19, and piston 4 moves up and down, the maximum rising displacement that piston 4 moves up and down
It is to piston cavity 2 topmost, the maximum decline displacement that piston 4 moves up and down is the bottom to piston cavity 2.
The technical scheme is that a kind of balance the pressure of the drill vernier angle device includes being arranged on many within upper shell 1
Individual piston cavity 2, multiple piston cavities 2 are evenly distributed on the lower surface of upper shell 1, and multiple piston cavities 2 pass through communicating passage
The 17 multiple hydraulic thrust posts 19 of connection, multiple piston cavities 2 are used for placing piston 4 and hydraulic oil, and each piston cavity 2 is not mutually done
Disturb, the multiple limit spring 23 of corresponding welding between multiple push pedals 18 and multiple hydraulic thrust posts 19；
The lower house 6 being connected with upper shell 1, lower house 6 is internal to arrange multiple piston grooves, multiple hydraulic thrust posts 19 with multiple
Piston 4 communicates, and the shape of piston 4 is consistent with the shape of piston cavity 2, and multiple hydraulic thrust posts 19 are contacted with multiple push pedals 18,
Push pedal 18 can automatically retract in the outside of hydraulic thrust post 19 in the case of not stressing, multiple connecting rods 13 pass through multiple piston grooves with
Upper shell 1 connects, and each connecting rod 13 two ends is respectively connected with a bead 14, forms spherical connecting bar 5, the setting of multiple piston 4 lower ends
There are multiple elastomeric elements 20；
By multiple connecting rods 13, lower house 6 is connected with drill bit connecting seat；
Hydraulic oil in upper shell 1 is squeezed into corresponding communicating passage 17 in a piston cavity 2, by hydraulic pressure
The compression stress of oil switchs to the thrust of multiple hydraulic thrust posts 19, and piston 4 moves up and down, the maximum rising displacement that piston 4 moves up and down
It is to piston cavity 2 topmost, the maximum decline displacement that piston 4 moves up and down is the bottom to piston cavity 2.
A kind of balance the pressure of the drill vernier angle device of the present invention, will change originally because counterweight deflection mud is as pressure source
It is to cause work surface skew because drill bit is stressed inequality thus the compression stress that produces, be converted into the motive force of hydraulic oil, promote
Push pedal 18.Drill bit can make bit operation face tilt in drilling because of unbalance stress, and this will make drill bit side rising side
Decline, the connecting rod rising the drill bit connecting seat of side also can rise, thus carrying piston 4 to rise, causes hydraulic pressure in piston cavity 2
Oil flowing, makes the hydraulic thrust post 19 of the other end in piston cavity 2 push out, so that push pedal 18 is opened, and makes bit operation face recover water
Flat.This device can timely adjust according to the change of drill bit the pressure of the drill and can be adjusted it is not necessary to spend great talent because of hole angle, this dress
The pressure system put is the hydraulic type of sealing, has more stable pressure output, changes and is limited by mud flow rate and pump pressure
System.Effectively well straightening and the anti-oblique effect of this device energy, can make well more smooth, and the down-hole bit freezing of reduction improves drilling speed.
Specifically, drill bit connecting seat includes drill bit connecting seat top 8 and drill bit connecting seat bottom 9；
Drill bit connecting seat top 8 is two parts composition, spherical hollow axle center and drill bit connecting seat top 8 chassis, spherical
It is evenly distributed with little ball groove and bolt hole 10, spherical hollow space can make mud therefrom lead to around the axle center center of circle of quill shaft
Cross, the other end of multiple connecting rods 13 is passed through multiple tie rod holes, has bullet in the position of multiple connecting rods 13 and drill bit connecting seat top 8
Property rubber make connecting rod sealing ring 7；
The intermediate hollow of drill bit connecting seat bottom 9, drill bit connecting seat bottom 9 is cylinder, is distributed bead around its center of circle
Groove and bolt hole 11, drill bit connecting seat bottom 9 connects drill bit connecting seat top 8 and drill bit, and one end of multiple connecting rods is sealed in
Therebetween in spherical groove.
Preferably, the material of piston 4 and hydraulic thrust post 19 is glomerocryst composite sheet.Glomerocryst composite sheet can bear high pressure resistance to
Mill, therefore does piston 4 and hydraulic thrust post 19 from glomerocryst composite sheet.
Preferably, piston cavity 2 exterior circumferential is provided with multiple bolts hole.
Preferably, the placing trough of push pedal 18 is placed in the outer end setting of communicating passage 17, and push pedal 18 is hinge push pedal 18.
Preferably, the junction between upper shell 1 and lower house 6 is provided with rubber blanket.Rubber blanket plays the effect of sealing.
Preferably, the material of elastomeric element 20 is steel wire.Steel wire tenacity is strong, can limit the flexible of hydraulic thrust post 19
Amount.
Preferably, it is evenly distributed with wear plate outside push pedal 18.In push pedal 18 outside setting wear plate, push pedal 18 can be avoided
Abrasion, extend push pedal 18 service life.
Preferably, piston 4 is arranged fluted, for placing seal rubber sleeve 12.On piston 4, setting groove places sealing
Gum cover 12, can make device sealing effectiveness more preferable.
Preferably, the outside of upper shell 1 is provided with water conservancy diversion mud ditch.
Preferably, piston cavity 2 inwall scribbles wear-resistant coating.
Preferably, the surrounding of each piston cavity 2 is provided with bolt hole.
Preferably, the bead end of connecting rod 13 is provided with screwed hole, and connecting rod 13 two ends are provided with screw thread, for by connecting rod 13 with little
Ball 14 is fixedly connected.
Preferably, elastomeric element 20 is spring, and effect is the stroke limiting hydraulic thrust post 19.
Embodiment two
Referring to Fig. 1 to Figure 11, in conjunction with the practical situation in concrete region, using the balance the pressure of the drill fine setting of one of embodiment one
Angle device, is specifically described:
Certain block has three sandstone groups, and ground layer interlayer is many, stratigraphic dip between 27 °～30 °, rock drillability
Difference, the easy hole deviation in this kind of stratum.Well depth design be 4886m, planned well bottom hole deviation be less than 3 °, well track maximum dog-leg be less than 4 °/
30m, because the data of offset well is few, drill to 1500m about use spot measurement hole deviation when, find hole deviation to be 1.2 ° that some are inclined
Greatly, it is drilled into and is still increasing hole deviation during 2000m, drilling parameter now is drill bit 311.15mm, drilling fluid density, 1.34g/
cm3, in 28～30l/s, standpipe pressure is 12mp to discharge capacity, and rotary speed is 65r/min, and the pressure of the drill in 5t-6t, mechanical separator speed is
2m/h, electronic single point records hole deviation and is 4 °.
Geologic feature according to block and present hole deviation, carry out well straightening with this device.
Step one: critical component improved method
This device is mainly transformed according to existing automatic vertical drilling device.And by original because of counterweight deflection mud
Slurry, as pressure source, is changed to cause work surface to offset because drill bit is stressed inequality, so that the pressure of the drill of skew side passes through liquid
Force feed conversion of motion is push pedal 18 thrust.It is mainly during the work of this device and adjust the pressure of the drill according to pushing power and well straightening ability to, from
And correct hole deviation and keep straight well drilling.
Step 2: general arrangement assembling
(1) balance the making of the pressure of the drill vernier angle device
The pressure of the drill balance adjustments angle device is by upper shell 1, lower house 6, connecting rod 13 (column type piston rod), push pedal 18 and liquid
Pressure pushes away post 19, drill bit connecting seat top 8, and drill bit connecting seat bottom more than 9 part forms.
Upper shell 1 body is integral diameter 305mm, highly for 430mm, has 6 piston cavities 2, uniformly in upper shell 1
The lower surface being distributed in upper shell 1, a diameter of 70mm of piston cavity 2, highly for 105mm, piston cavity 2 inwall scribbles
Wear-resistant coating, each piston cavity 2 is communicated to towards corresponding hydraulic thrust post 19 and push pedal 18 with it, and does not mutually interfere with each other, even
A diameter of 15mm of circulation passage 17, the outer end of communicating passage 17 is the placing trough of push pedal 18, and the surrounding of each piston cavity 2 has 2
Individual bolt hole.The piston cavity 2 of upper shell 1 is to place column type piston 4 and hydraulic oil, and hydraulic oil can be in column type piston 4 and hydraulic pressure
Push away flowing between post 19.There are six 25mm depth water conservancy diversion mud ditch in the outside of upper shell 1.
Lower house 6: lower house 6 is generally cylindrical, a diameter of 305mm, thickness is 25mm, is provided with six column type pistons
Groove, groove depth 3mm, six spherical connecting bars 5 are passed through, spherical hollow axle can be held up, then be bolt-connected to upper shell 1,
With rubber blanket, the junction of upper-lower casing 6 is sealed.
Column type piston rod (connecting rod 13): piston 4 is cylindrical structure, column type piston 4 is that glomerocryst composite sheet makes, diameter
For 70mm, highly for 103mm, piston 4 there is 2mm groove be to place seal rubber sleeve 12, buffer spring 20 (elastomeric element 20) exists
Column type piston 4 lower section is placed, and there is screwed hole bead one end of spherical connecting bar 5, and spherical connecting bar 5 is diameter 30mm, length 70mm, even
There is screw thread at bar 13 two ends.Main Function is that from a within the chamber, the hydraulic oil in upper shell 1 is squeezed into its corresponding channel lumens
Room, hydraulic oil compression stress is switched to the thrust of hydraulic thrust post 19.When moving up and down, a piston 4 moves column type piston 4
Maximum to rise displacement be to piston cavity 2 topmost, the bottom of piston 4 motion is the bottom to piston cavity 2, piston
4 are contacted with the buffer spring 20 in piston cavity 2, and the maximum displacement that the maximum displacement of the rising of piston 4 is declined with piston 4 is to live
The maximum magnitude of plug 4 motion.In order that the 3.36 °/30m of maximum dog-leg severity in well straightening for the well track, according to steerer software
The side-play amount calculating bit operation face is at 0.5 °.
Hinge push pedal 18 (push pedal 18) and hydraulic thrust post 19 and buffer spring 20, hydraulic thrust post 19 is by glomerocryst composite sheet system
Make, high pressure wear-resisting can be born, be in the other end of upper shell 1 piston cavity 2, communicate with column type piston 4, diameter 15mm, long
Spend for 50mm, contact with hinge push pedal 18, hinge push pedal 18 can automatically retract in hydraulic thrust post 19 in the case of not receipts power
Outside, hinge push pedal 18 and upper shell 1 bolt connection, hinge push pedal 18 thickness is 20mm, and length is 50mm, a width of 25mm,
Outside is evenly distributed with wear plate.It is 32mm that buffer spring 20 makes length by the strong steel wire of toughness, and effect is will to limit liquid
Pressure pushes away the stroke of post 19.
Drill bit connecting seat top 8, is two parts composition, spherical hollow axle center and drill bit connecting seat top 8 chassis.Spherical axle
Hollow diameters 68mm of the heart, spherical diameter 105mm, it is evenly distributed with 6 little ball grooves and 12 bolts hole around the center of circle.Hollow
Part can make mud from passing through.The other end of spherical connecting bar 5 is passed through tie rod holes, in the position of connecting rod and drill bit connecting seat top 8
It is equipped with the connecting rod sealing ring 7 of gum elastic making.
Drill bit connecting seat bottom 9: intermediate hollow, body is cylinder, a diameter of 305mm, highly for 130mm, center of circle week
Enclose 6 little ball grooves of distribution and 12 bolts hole.Drill bit connecting seat bottom 9 is mainly connection drill bit connecting seat top 8 and connects brill
Head, seals one end of six spherical connecting bars 5 in spherical groove between.
(2) balance the assembling of the pressure of the drill vernier angle device
1) first by column type piston 4, connecting rod bead 14, connecting rod, one of bead is embedded in column type piston 4, will connect
Bar 13 is aligned and connects with the silk mouth of bead 14, then the sealing rubber ring 12 of piston 4 is enclosed within groove.
2) limit spring 21 one end and hydraulic thrust post 19 are welded, the other end of limit spring 21 is welded to hydraulic pressure
In oily passage, then hinge push pedal 18 is connected with upper shell 1 with bolt.
3) piston rod 13 is put in piston cavity 2, and spherical center axle 22 is put into the ball recess of upper shell 1
Interior.
4) pass through oil filler point 3 to oiling in piston cavity 2, sealed with bolt after oiling and be sealed against with ab glue.
5) other end in the connecting rod 13 on upper shell 1 and spherical axle center is passed through the corresponding position of lower house 6, upper shell 1
There is rubber blanket with the junction of lower house 6, then with bolt, upper-lower casing 6 is connected, and sealed with ab glue.
6) the screw thread end of spherical center axle 22 is connected to drill bit connecting seat top 8, and allow piston rod 13 by each logical
Hole.And each bead 14 is connected with connecting rod 13.
7) drill bit connecting seat top 8 is coupled together with drill bit connecting seat bolt 11 with drill bit connecting seat bottom 9.
Step 3: fine-tuning capability horizontal checkout
(1) push the mensure of power to
1) this device is connected with drill bit, pressure tap is disposed with each wing of drill bit, then in wing opposite position
Pressure tap is arranged on the push pedal 18 put, the drill bit of test is applied the pressure of the drill 1t, 2t, 3t, 4t, 5t to the stratum of simulation, record
Drill bit the pressure of the drill and thrust 10kn of pressure tap, 20kn, 30kn, 40kn, 50kn, then lift, then adjust tumbler, then apply
Pressure record drill bit the pressure of the drill 1t, 2t, 3t, 4t, 5t, and the numerical value 10kn of pressure tap, 20kn, 30kn, 40kn, 50kn.
2) thrust magnitude according to measured drill bit the pressure of the drill value and push pedal 18 pressure tap, thus obtain the pressure of the drill and push pedal 18 power
Relation curve, as shown in Figure 10.
3) in order that push pedal 18 power can promote drill string, push pedal 18 power is greater than the side force in the 4 ° of generations in shaft bottom for the drill string, that is,
Push pedal 18 power is at least greater than 25kn.
4) the pressure of the drill 5t to be applied is obtained according to the relation curve of drill pressure and push pedal 18 power.
(2) test of well straightening ability
1) balancing drill pressure vernier angle device is connected on drill bit, then connects no magnetic short circuit and non magnetic drill collar.
2) put into mwd wireless drilling inclinometers device in non magnetic drill collar.
3) drilling tool having connected is put into shaft bottom 1000m～2000m, hole deviation is at 1 °, 1.2 °, 1.5 °, 2 °, 2.5 °, 3 °, 4 °
Well in carry out well straightening aptitude tests.
4) 5m, record institute's drill-hole survey and accurate footage drilled are often crept into, until it reaches well hole deviation is less than 0.5 °
5) draw the relation curve of well straightening angle and drilling depth, as shown in figure 11.
6) relation curve according to well straightening angle and drilling depth, the footage drilled so as to predict needed for well straightening well is 36m.
7) reduce the pressure of the drill when creeping at 36m to 3t, that is, reduce the high pressure friction of push pedal 18 and the borehole wall.
Step 4: mining site quotes installation and debugging method
(1) when oil field uses, this device is connected on drill bit, is then connected with no magnetic short circuit, non magnetic drill collar,
Inclinometer is put into, then lower going-into-well bottom starts to creep in non magnetic drill collar.
(2) during drilling, applying the pressure of the drill slowly, first with little the pressure of the drill 2t, 2t the pressure of the drill generation 20kn pushes to
Power, this pushes power to and is not enough to support push pedal 18 completely, and rotating speed will control in slow-speed of revolution 60r/min, other drilling parameters
Constant, measure hole deviation after drilling 6m, observe whether downhole hardware works to well track.
(3) when hole deviation is less than 4 °, suitably apply the pressure of the drill 4t, rotating speed somewhat increases to 60r/min, and other drilling parameters are protected
Hold constant, according to Figure 10 the pressure of the drill with push try hard to table to, 4t the pressure of the drill can produce 40kn and push power, drill string side force 25kn to, push away
Plate 18 can fully open, and drill string can be promoted to change to little hole deviation.Creep into half single rear measurement hole deviation, observe hole deviation change.
(4) hole deviation is less than 3 °, when hole deviation has significant change, increases the pressure of the drill to 5t, rotating speed controls in 70r/min, other ginsengs
Number keeps constant, has crept into a single rear measurement hole deviation, has continued to keep parameter constant drilling.
(5) when when being drilled at 36m, being obtained according to Figure 11 well straightening angle and drilling depth relation, in the case of 4 ° of hole deviations, push pedal 18
When fully opening, well straightening to required footage drilled during 0.5 ° of hole deviation is 36m, so bradawl to be reduced is pressed onto 3t, reduces push pedal 18
Contact with borehole wall high pressure.
To sum up, the having the beneficial effect that of the present invention a kind of balancing drill the pressure of the drill vernier angle device:
(1) balancing drill the pressure of the drill vernier angle device and the existing well straightening device ratio using mud as thrust source have more steady
Fixed pressure source.
(2) balancing drill the pressure of the drill vernier angle device can be adjusted in time according to the stress difference in each orientation of drill bit it is not necessary to
Cross great talent etc. hole deviation to be adjusted.
(3) this device is because of bit inclination energy angulation, than the existing device well straightening relying only on and pushing that power carries out well straightening to
Ability is higher, and skew velocity is faster.
Finally it is noted that various embodiments above, only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that: its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme, it all should be covered in the middle of the claim of the present invention and the scope of description.
Claims (10)
1. a kind of balance the pressure of the drill vernier angle device is it is characterised in that include:
It is arranged on the multiple piston cavities within upper shell, multiple described piston cavities are evenly distributed on the lower end of described upper shell
Face, multiple described piston cavities connect multiple hydraulic thrust posts by communicating passage, and multiple described piston cavities are used for placing piston
And hydraulic oil, each piston cavity do not interfere with each other, and between multiple described push pedals and multiple described hydraulic thrust posts, corresponding welding is multiple
Limit spring；
The lower house being connected with described upper shell, arranges multiple piston grooves inside described lower house, multiple described hydraulic thrust posts with
Multiple pistons communicate, and the shape of described piston is consistent with the shape of described piston cavity, multiple described hydraulic thrust posts and multiple institutes
State push pedal to contact, described push pedal can automatically retract the outside in described hydraulic thrust post in the case of not stressing, multiple described
Connecting rod is connected with described upper shell by multiple described piston grooves, and each connecting rod two ends is respectively connected with a bead, forms ball-type
Connecting rod, multiple described piston are provided with multiple elastomeric elements；
By multiple described connecting rods, described lower house is connected with drill bit connecting seat；
Hydraulic oil in described upper casing body is squeezed into corresponding communicating passage in a piston cavity, by described hydraulic pressure
The compression stress of oil switchs to the thrust of multiple described hydraulic thrust posts, described piston up-down, the maximum of described piston up-down
Rising displacement is to described piston cavity topmost, and the maximum decline displacement of described piston up-down is to described piston cavity
Bottom.
2. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
Described drill bit connecting seat includes drill bit connecting seat top and drill bit connecting seat bottom；
Described drill bit connecting seat top is two parts composition, the hollow axle center of ball-type and drill bit connecting seat top chassis；Described ball
It is evenly distributed with little ball groove and bolt hole, the hollow space of described ball-type can make mud therefrom around the center of circle in hollow axle center of type
Pass through, the other end of multiple described connecting rods is passed through multiple tie rod holes, in the position of multiple described connecting rods and drill bit connecting seat top
It is equipped with the connecting rod sealing ring of gum elastic making；
The intermediate hollow of described drill bit connecting seat bottom, drill bit connecting seat bottom is cylinder, is distributed little ball groove around its center of circle
And bolt hole, described drill bit connecting seat bottom connects described drill bit connecting seat top and drill bit, one end of multiple described connecting rods
In sealing ball-type groove between.
3. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
The material of described piston and described hydraulic thrust post is glomerocryst composite sheet.
4. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
Described piston cavity exterior circumferential is provided with multiple bolts hole.
5. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
The placing trough of push pedal is placed in the outer end setting of described communicating passage, and described push pedal is hinge push pedal.
6. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
Junction between described upper shell and described lower house is provided with rubber blanket.
7. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
The material of described elastomeric element is steel wire.
8. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
It is evenly distributed with wear plate outside described push pedal.
9. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
Arrange fluted on described piston, for placing seal rubber sleeve.
10. according to claim 1 balance the pressure of the drill vernier angle device it is characterised in that
The outside of described upper shell is provided with water conservancy diversion mud ditch.
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| CN201610884626.2A CN106368624B (en) | 2016-10-10 | 2016-10-10 | A kind of balance bit pressure vernier angle device |
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| CN201610884626.2A CN106368624B (en) | 2016-10-10 | 2016-10-10 | A kind of balance bit pressure vernier angle device |
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| CN106368624B CN106368624B (en) | 2018-12-07 |
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| SU1535961A1 (en) * | 1987-07-21 | 1990-01-15 | Тюменский индустриальный институт им.Ленинского комсомола | Arrangement for preventing croocking of wells |
| 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 |
| CN2836972Y (en) * | 2005-07-19 | 2006-11-15 | 中国石油天然气集团公司 | Dual-piston mechanism for adjusting pipeline welding seam |
| CN201129141Y (en) * | 2007-11-20 | 2008-10-08 | 中国石化集团胜利石油管理局黄河钻井总公司钻前公司 | Pendulum hydraulic type automatic dip-rectification drilling tool |
| CN202280425U (en) * | 2011-11-04 | 2012-06-20 | 中国石油天然气集团公司 | Upper and lower suspension type automatic anti-sloping drilling tool |
| US20140262507A1 (en) * | 2013-03-12 | 2014-09-18 | Weatherford/Lamb, Inc. | Rotary steerable system for vertical drilling |
| CN104314470A (en) * | 2014-10-27 | 2015-01-28 | 中国石油集团西部钻探工程有限公司 | Vertical well drilling tool |
| CN204851217U (en) * | 2015-06-08 | 2015-12-09 | 东北石油大学 | Oil well logging appearance balancing unit |
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2016
- 2016-10-10 CN CN201610884626.2A patent/CN106368624B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1535961A1 (en) * | 1987-07-21 | 1990-01-15 | Тюменский индустриальный институт им.Ленинского комсомола | Arrangement for preventing croocking of wells |
| 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 |
| CN2836972Y (en) * | 2005-07-19 | 2006-11-15 | 中国石油天然气集团公司 | Dual-piston mechanism for adjusting pipeline welding seam |
| CN201129141Y (en) * | 2007-11-20 | 2008-10-08 | 中国石化集团胜利石油管理局黄河钻井总公司钻前公司 | Pendulum hydraulic type automatic dip-rectification drilling tool |
| CN202280425U (en) * | 2011-11-04 | 2012-06-20 | 中国石油天然气集团公司 | Upper and lower suspension type automatic anti-sloping drilling tool |
| US20140262507A1 (en) * | 2013-03-12 | 2014-09-18 | Weatherford/Lamb, Inc. | Rotary steerable system for vertical drilling |
| CN104314470A (en) * | 2014-10-27 | 2015-01-28 | 中国石油集团西部钻探工程有限公司 | Vertical well drilling tool |
| CN204851217U (en) * | 2015-06-08 | 2015-12-09 | 东北石油大学 | Oil well logging appearance balancing unit |
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| Publication number | Publication date |
|---|---|
| CN106368624B (en) | 2018-12-07 |
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