CN2431390Y - Remote-controlled mechanical hydraulic inclination reducing tool in well - Google Patents
Remote-controlled mechanical hydraulic inclination reducing tool in well Download PDFInfo
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- CN2431390Y CN2431390Y CN 00238155 CN00238155U CN2431390Y CN 2431390 Y CN2431390 Y CN 2431390Y CN 00238155 CN00238155 CN 00238155 CN 00238155 U CN00238155 U CN 00238155U CN 2431390 Y CN2431390 Y CN 2431390Y
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- reducing tool
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Abstract
The utility model relates to a remote-controlled mechanical hydraulic inclination reducing tool in wells, which is composed of a clutch device, a gravity type reversing device, a signal transferring and operating mechanism, a state positioning mechanism, etc. The utility model is mainly composed of a body and outer sleeve barrel components connected by bearings. When the utility model is in the state of working, a drill bit is driven by the body to rotate, the outer sleeve barrel components are not rotated, an eccentric block on an outer sleeve barrel is abutted on one side of a well wall all along to enable the drill bit to deviate to the side of a well hole, and the jobs of reducing inclination, increasing inclination and twisting orientation, etc. can be completed. The device can identify the high side of a tool surface automatically and feed information back to working personnel on ground, and dynamic drilling tools in wells are not needed. Besides, detecting instruments can be omitted, drilling times can be reduced, and well drilling time can be shortened simultaneously. A turntable drilling mode is used for improving mechanical drilling speed to reduce well drilling cost.
Description
The utility model relates to a kind of borehole track control device that is used for straight well, directional well drilling process, especially a kind of mechanical hydraulic-pressure type drop angle control device that utilizes the gravitational cue sensing.
In straight well and directed drilling process, need control borehole track hole angle and azimuth.Existing borehole track control generally has following three kinds of methods:
1, adopts rotating disk to bore drilling assembly, utilize experience and mechanical analysis, design bottom hole assemblies (BHA), reach the purpose of increasing hole angle, drop angle and hold angle; Or use mud motor.This rotating disk bores drilling assembly, and drop angle rate is lower, and machinery creeps into slowly.For example being used for straight well drop angle and pendulum assembly, being actually one and short exchanging the negative means of quality for to sacrifice the pressure of the drill, is inappropriate to the higher deep drilling of day expense.And the employing mud motor for mode is crept in slip, because difficulty of construction is big and drill fluid purification is required high factor, causes well construction period long, has increased cost.
2, the well system of the automated closed-loop of development abroad control in recent years.The SDD of vertical drilling system that for example Italian Agip company and U.S. Baker Hughes IntecQ company develop jointly.The closed loop NDS is the high-tech product of mechanical electronic hydraulic integrated, and production and use cost are all high.These modes also require to be equipped with suitable measuring apparatus, as single-shot inclinometer, wired drilling measuring instrument etc.
The purpose of this utility model is to provide a kind of distance type mechanical hydraulic type down-hole inclination reducing tool, can be used for drilling straight-hole and directional well, it need not to use mud motor and the borehole track control tool that can drive directional drilling with rotating disk, it can finish drop angle control automatically, can also realize increasing hole angle and turn round control of azimuth by simple conversion, it can save the deviational survey instrument, and automatic identification facility flash also feeds back to the terrestrial operation personnel.
The purpose of this utility model is achieved in that a kind of distance type mechanical hydraulic type down-hole inclination reducing tool, it is made up of the sleeve of outside and the body of inner fit, the central authorities of body are through hole, and sleeve and body are provided with gravitational cue generating means, signal transmission and executing agency; Wherein the output termination signal of gravitational cue generating means transmits and executing agency's input.
Connect by the clutch clutch between described sleeve and the body.
The state that also is provided with on the described body shows a mechanism.
Described gravitational cue generating means is the control valve group in the annular chamber that is arranged between sleeve and the body, and the via of offering on annular chamber and the body is communicated with, and the valve group is made of spool, back-moving spring, and the spool in the cavity of valve group is arranged with a spin.
Described signal transmission and executing agency comprise signal transmitting portions and executing agency's part, wherein the signal transmitting portions is that one group of hydraulic circuit on the inner core in the annular chamber between sleeve and body is set, the valve group output of the input termination gravitational cue generating means of oil circuit, the output termination executing agency part of signal transmitting portions oil circuit, executing agency partly is arranged on the sleeve of middle part, form by eccentric block, wing plate and sieve plate, the both sides of eccentric block are provided with wing plate, sieve plate is set on the wing plate, back-moving spring is set in the middle of eccentric block and the wing plate.
Described clutch is made up of the clutch piston, the back-moving spring that fit with the body sliding bevel, the piston draw-in groove that is opened on the sleeve.
Described state shows that a mechanism is by showing a piston component, show that a nozzle, throttling rod form on core body, the core body, wherein state shows that mechanism's core body is arranged on the body, piston cavity is divided into rod chamber and rodless cavity, rod chamber and rodless cavity are equipped with back-moving spring and position-limiting tube respectively, and rod chamber is communicated with oil circuit on the body respectively by the annular through groove that is arranged on the body with the oil circuit of rodless cavity.
Described sleeve is provided with the compensation oil pocket, is provided with floating piston and assemblies such as spring, sealing thereof in the compensation oil pocket, and the outside of piston is provided with sieve plate, and the hydraulic circuit of piston is identical with the hydraulic system oil circuit of signal transmission and executing agency.
The utlity model has following advantage:
1, this device is connected to nearly drill bit place, is equivalent to apply a concentrated force at nearly drill bit place, can finish automatic drop angle, increasing hole angle or turn round control of azimuth, can be used for straight well and directional well operation.
2, this device adopts the rotating disk type of drive in drilling well, saves steering drilling tool, has simplified combiner, has reduced the possibility that down-hole accident takes place, and improves rate of penetration simultaneously.
3, the automatic identification facility face flash of this device, and adopt the positive pulse feedback to show that a mode informs the ground handling personnel, show that the position is reliable, can save the deviational survey instrument, saved the operation of expensive expense and deviational survey.
4, this device manufacturing process is simple, and cost is low, is easy to popularize.
Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.
Fig. 1 is total figure for the utility model constitutes;
Fig. 2 is Figure 1A segment structure schematic diagram;
Fig. 3 is Figure 1B segment structure schematic diagram.
Referring to Fig. 1-3, the utility model is a kind of distance type mechanical hydraulic type down-hole inclination reducing tool.It is made up of the sleeve 10 of outside and the body 1 of inner fit, and the central authorities of body 1 are through hole, and A sleeve and body 1 are provided with gravitational cue generating means, signal transmission and executing agency; Wherein the output termination signal of gravitational cue generating means transmits and executing agency's input.Connect by the clutch clutch between sleeve 10 and the body 1.The state that also is provided with on the body 1 shows a mechanism.
Wherein clutch is made up of the clutch piston 6, the back-moving spring 7 that fit with body 1 sliding bevel 4, the piston draw-in groove 5 that is opened on the sleeve 2.It also comprises baffle plate, flow check piston 3 and back-up ring etc.Flow check piston 3 and main spring 9 are contained in the upper body 1, and two cover clutch pistons 6, spring 7 are contained in the plane, and the phase angle is 180 degree mutually.The gravitational cue reversing arrangement is two control valve groups that are contained in the annulus, and annulus is fixed on the sleeve by joint bolt.Between middle part body 11 and the sleeve is annular high-voltage oil cavity 13, and the annular cover is equipped with on top, rubber pad and annular plug cock, and the annular cover is fixed on the sleeve by joint bolt, is provided with sealing ring inside and outside the annular plug cock, adorns several rubber pads in the middle of annular cover and annular plug cock.One annular cavity is arranged under the annulus, and constitute annular raceway chamber between the sleeve, the spin 15 of certain diameter is arranged in it, in plane of annulus, two plunger holes are arranged, spool 12 is loaded in it, with plectane of Bolt Connection, spring 14 is housed under it at spool 12 tops.In the annulus part corresponding a series of hydraulic fluid ports and oil circuit are arranged with application valve body.
Signal transmission and executing agency are positioned at sleeve 10 middle parts.Wherein the gravitational cue generating means is the control valve group in the annular chamber that is arranged between sleeve 10 and the body 1, the via of offering on annular chamber and the body 18 is communicated with, the valve group is made of spool 12, back-moving spring 14, and the spool 12 in the cavity of valve group is arranged with a spin 15.Signal transmission and executing agency comprise signal transmitting portions and executing agency's part, wherein the signal transmitting portions is that one group of a series of hydraulic circuit on the inner core in the annular chamber between sleeve 10 and body 1 is set, as oil circuit D17, oil circuit E19, oil circuit F20, oil circuit L16.The input of whole oil circuit connects the valve group output of gravitational cue generating means, by the valve group of gravitational cue generating means as gauge tap.The oil circuit output of transmitting portions is to executing agency's part, executing agency partly is arranged on the sleeve of middle part, is made up of eccentric block 34, wing plate 33 and sieve plate 35, and the both sides of eccentric block 34 are provided with wing plate 33, sieve plate 35 is set, eccentric block 34 and the wing plate 33 middle back-moving springs that are provided with on the wing plate 33.
Signal transmission and executing agency also comprise the compensation oil pocket, in the compensation oil pocket, be provided with floating piston 30 and assemblies such as spring 31, sealing thereof, the outside of piston 30 is provided with sieve plate 29, and the hydraulic circuit E19 of piston 30 is identical with the hydraulic system oil circuit of signal transmission and executing agency.
State show a mechanism be contained in in the body 1 inner post hole, by flat throttling core body 28, show assembly such as a piston 26, show that a nozzle and two locating rings 32 form.Offer plunger hole in the throttling core body, show a piston 26 and show that a bar 27 uses Bolt Connection, two springs, position-limiting tube are set in the plunger cavity, plunger shaft is divided into rod chamber 24 and rodless cavity 25, the pistons end center of being equipped with is drilled with the end cap of through hole, and inside is provided with sealing, shows to have oil circuit H23, oil circuit G22 on the core body, the end port of corresponding oil circuit H23, oil circuit G22 has cannelure 21 on middle part body 1, so that can communicate with oil circuit G, oil circuit D on the sleeve 10 that maintains static when rotated.
This device adopts hydraulic oil and the isolated hydraulic transmission system of drilling fluid, spin 15 is hanged down limit bottom dead centre direction rolling and motionless at the bottom dead centre place at the action of gravity downhole under free state like this, behind the turn on pump, low limit gravity directional control valve spool 12 is blocked by spin 15, the hydraulic oil of annular oil cavity 13 can not enter, and flash control valve spool 18 is descending, the high pressure oil-in is opened, the hydraulic oil of annular oil cavity 13 is by flash control valve 18, and corresponding hydraulic circuit enters eccentric block 34 oil pockets, promoting eccentric block 34 extends radially out, start rotating disk this moment, body 1 drives the drill bit rotation, the eccentric block 34 roof pressure boreholes wall force drill bit deflection well rock cutting on one side, thereby finish the drop angle operation simultaneously.
Further describe the principle and the working condition of this device below:
This device is made of body part and outer sleeve assembly, connects with bearing between two parts, and so in working order down, body 1 drives the drill bit rotation, and sleeve 10 assemblies do not rotate.The plane at eccentric block 34 places is a tool-face on the definition outer sleeve now, this matching requirements descends tool-face to be positioned at hole deviation plane (vertical plane) in working order, and eccentric block 34 should be positioned at well flash position, eccentric block 34 withstands the flash borehole wall all the time like this, guarantee drill bit all the time under hole deviation edge direction creep into.But after instrument was gone into the well, tool-face so need show that the feedback signal that a mechanism produces judges by state, was regulated by the terrestrial operation personnel not necessarily in the hole deviation plane and be positioned at well flash place then, promptly twists drilling rod.When the effect of clutch is turn on pump work, body 1 and sleeve 10 components apart, body 1 rotates, and outer sleeve 10 assemblies are motionless, and when termination of pumping, body 1 and the locking of sleeve 10 assemblies come the adjustment means face by the twisting drilling rod then.Therefore, this device has three kinds of states:
1, tool-face is positioned at the hole deviation plane, and eccentric block 34 is in the well flash, normal operating conditions: this moment turn on pump, high-pressure slurry promotes annular plug cock 11 by mesopore A on the body 1 and via 8, extruding annular oil cavity hydraulic oil; The spool 12 of flash control valve 18 is descending, and the high pressure oil-in is opened, and the annular oil cavity hydraulic oil promotes eccentric block 34 by oil circuit F20 and extends radially out; 12 times oil of spool to the low-voltage compensation oil pocket, to the mud annular space, thereby are regulated oil circuit pressure by oil circuit E19; The low edge direction control valve spool 12 of instrument is descending, and chance spin 15 is obstructed and is pushed down spin 15, and oil circuit L is obstructed, and oil circuit D communicates; Control valve spool 12 times oil in low limit promote low limit low-voltage compensation oil pocket, to the mud annular space;
This state shows a mechanism action: flash control valve 18 is opened, and oil circuit G communicates; The annular oil cavity hydraulic oil shows a piston retraction by oil circuit G22; Show that a throttling piston bar 27 leaves and show a nozzle, the pressure drop minimum of generation this moment.
Clutch: according to the operation requirement, turn on pump, body 1 and sleeve 10 assemblies are thrown off, and body 1 drives drill bit and rotates, and sleeve 10 assemblies are motionless; Termination of pumping is with body 1 and the locking of sleeve 10 assemblies.Clutch has two kinds of duties: locking, release.By turn on pump, termination of pumping, with body 1 and locking of sleeve 10 assemblies or release.Plane, clutch piston 6 place becomes 90 degree phase places to arrange in the clutch with eccentric block 34 planes.
Turn on pump: produce pressure on the flow check piston 3 of front end and fall, descending, clutch piston 6 bounces back from draw-in groove 5 under spring 7 effects, body 1 discharges with sleeve 10 assemblies, clutch piston 6 slides along flow check piston 3 inclined-planes 4, flow check piston 3 compression main springs 9 are kept this state to down stroke during turn on pump, clutch piston 6 is subjected to the constraint on inclined-plane 4 can not be overhanging; Termination of pumping, flow check piston 3 is up, and it is overhanging to promote clutch piston 6, and simultaneously, operating personnel twist drilling rod slightly, help clutch piston 6 ends to stretch into draw-in groove 5, locking.
2, eccentric block 34 place tool-face are positioned at the hole deviation plane, but eccentric block 34 is positioned at place, the low limit of well.This moment, the directional control valve valve was in place, low limit, and valve is in the flash place, and spin 15 falls within the low limit of well bottom dead centre.This moment turn on pump, flash control valve 18 spools are descending, open, annular oil cavity 13 hydraulic oils promote to show that a piston 26 is overhanging by oil circuit; At this moment, show that a piston 26 gos deep into nozzle, to certain stroke, consequent pressure drop maximum.At this moment want termination of pumping, clutch is in the lock state again, the adjusting of twisting drilling rod is rotated about 180 degree, and turn on pump if the pressure that this moment, the ground standpipe pressure fed back is reduced to minimum (than about state 2 decline 1.8-2Mpa), illustrates to be in normal operating conditions once more.
3, when eccentric block 34 place tool-face not in the hole deviation plane, and spin 15 under free state all the time towards below motion, promptly (vertical plane) to go up well minimum point place motionless on the hole deviation plane.This moment turn on pump, both sides control valve spool 12 all goes downwards to the end, the import of control valve hydraulic oil is opened.At this moment, show that a piston 26 rod chambers and rodless cavity all connect hydraulic oil, behind of short duration dynamic process, show the position a when piston 26 is kept installation, show promptly that throttling rod 27 on the piston 26 stretches into and show a nozzle certain-length, produce big pressure drop, illustrate not in normal operating conditions, but termination of pumping at this moment, clutch is with body 1 and the locking of sleeve 10 assemblies, and the staff twists drilling rod and regulates, once more turn on pump, arrangement of clutch discharges, if this moment, the pressure of ground standpipe feedback was reduced to minimum (than about state 3 decline 1.5Mpa), show that the tool-face flash is adjusted good, is in normal operating conditions, can start rotating disk, drop angle creeps into.
More than be three kinds of states of this device, by turn on pump, termination of pumping operation, show the different values of a mechanism by state at the feedback pressure reduction of ground standpipe generation, the ground handling personnel can judge the tool-face position at an easy rate, then by termination of pumping, and the clutch locking, the staff twists drilling rod, eccentric block is adjusted in the hole deviation plane (vertical plane), and eccentric block is in well flash position, reaches normal operating conditions
For bearing outer sleeve assembly weight, and prevent shaft lining breakage outer sleeve assembly when making a trip, near outer sleeve assembly end two ledge structures are being arranged on the body construction of upper and lower part, following body step surface is a high-abrasive material.
Above-mentioned borehole track control device is formed the pipe nipple about a 2.5m, is connected on the nearly drill bit of drill string place, if combine with conventional pendulum combination, the drop angle control system of composition just can be used for the operation of straight well drop angle.Owing to utilize gravitational cue perception hole angle that higher sensitivity is arranged, can be used for the less drop angle occasion of hole angle.Owing to need not to use mud motor, and under the rotating disk type of drive, creep into, can in the bigger high steep structure of formation deflecting force, efficiently finish the vertical drilling operation apace.
Above-mentioned is the utility model main technical schemes, but according to this technical conceive, this device also can be used for increasing hole angle, turns round operations such as orientation.When for example being used for increasing hole angle, eccentric block is placed offside in the same plane; When being used to turn round the orientation, the eccentric block position revolved turning 90 degrees, place in the plane of an angle of 90 degrees, just can finish corresponding operation, these all should belong to the conversion under the same technical conceive, all belong in the protection domain of the present utility model.
Claims (8)
1, a kind of distance type mechanical hydraulic type down-hole inclination reducing tool, it is characterized in that: it is made up of the sleeve of outside and the body of inner fit, and the central authorities of body are through hole, and sleeve and body are provided with gravitational cue generating means, signal transmission and executing agency; Wherein the output termination signal of gravitational cue generating means transmits and executing agency's input.
2, distance type mechanical hydraulic type according to claim 1 down-hole inclination reducing tool is characterized in that: connected by the clutch clutch between described sleeve and the body.
3, distance type mechanical hydraulic type according to claim 1 down-hole inclination reducing tool, it is characterized in that: the state that also is provided with on the described body shows a mechanism.
4, distance type mechanical hydraulic type according to claim 1 down-hole inclination reducing tool, it is characterized in that: described gravitational cue generating means is the control valve group in the annular chamber that is arranged between sleeve and the body, the via of offering on annular chamber and the body is communicated with, the valve group is made of spool, back-moving spring, and the spool in the cavity of valve group is arranged with a spin.
5, distance type mechanical hydraulic type according to claim 1 down-hole inclination reducing tool, it is characterized in that: described signal transmission and executing agency comprise signal transmitting portions and executing agency's part, wherein the signal transmitting portions is that one group of hydraulic circuit on the inner core in the annular chamber between sleeve and body is set, the valve group output of the input termination gravitational cue generating means of oil circuit, the output termination executing agency part of signal transmitting portions oil circuit, executing agency partly is arranged on the sleeve of middle part, by eccentric block, wing plate and sieve plate are formed, the both sides of eccentric block are provided with wing plate, sieve plate is set on the wing plate, back-moving spring is set in the middle of eccentric block and the wing plate.
6, distance type mechanical hydraulic type according to claim 2 down-hole inclination reducing tool is characterized in that: described clutch is made up of the clutch piston, the back-moving spring that fit with the body sliding bevel, the piston draw-in groove that is opened on the sleeve.
7, distance type mechanical hydraulic type according to claim 3 down-hole inclination reducing tool, it is characterized in that: described state shows that a mechanism is by showing a piston component, show that a nozzle, throttling rod form on core body, the core body, wherein state shows that mechanism's core body is arranged on the body, piston cavity is divided into rod chamber and rodless cavity, rod chamber and rodless cavity are equipped with back-moving spring and position-limiting tube respectively, and rod chamber is communicated with oil circuit on the body respectively by the annular through groove that is arranged on the body with the oil circuit of rodless cavity.
8, distance type mechanical hydraulic type down-hole inclination reducing tool according to claim 1 or 5, it is characterized in that: described sleeve is provided with the compensation oil pocket, in the compensation oil pocket, be provided with floating piston and assemblies such as spring, sealing thereof, the outside of piston is provided with sieve plate, and the hydraulic circuit of piston is identical with the hydraulic system oil circuit of signal transmission and executing agency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00238155 CN2431390Y (en) | 2000-07-03 | 2000-07-03 | Remote-controlled mechanical hydraulic inclination reducing tool in well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00238155 CN2431390Y (en) | 2000-07-03 | 2000-07-03 | Remote-controlled mechanical hydraulic inclination reducing tool in well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2431390Y true CN2431390Y (en) | 2001-05-23 |
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ID=33599265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00238155 Expired - Lifetime CN2431390Y (en) | 2000-07-03 | 2000-07-03 | Remote-controlled mechanical hydraulic inclination reducing tool in well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2431390Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733756A (en) * | 2012-07-23 | 2012-10-17 | 中国石油大学(华东) | Vibration and pressure well drilling tool |
| CN101713279B (en) * | 2009-11-04 | 2013-01-02 | 中国石油大学(北京) | Deviation prevention and fast drilling technology of eccentric drilling tool assembly |
-
2000
- 2000-07-03 CN CN 00238155 patent/CN2431390Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713279B (en) * | 2009-11-04 | 2013-01-02 | 中国石油大学(北京) | Deviation prevention and fast drilling technology of eccentric drilling tool assembly |
| CN102733756A (en) * | 2012-07-23 | 2012-10-17 | 中国石油大学(华东) | Vibration and pressure well drilling tool |
| CN102733756B (en) * | 2012-07-23 | 2014-04-09 | 中国石油大学(华东) | Vibration and pressure well drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM GROUP DRILLING ENGINEERING TECHNO Free format text: FORMER OWNER: INST. OF WELL DRILLING TECHNOLOGY, ACADEMY OF PETROLEUM EXPLORATION AND DEVELOPM Effective date: 20070720 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070720 Address after: 100083 No. 20, Beijing, Xueyuan Road Patentee after: Drilling Engineering Technology Research Institute, China National Petroleum Corp. Address before: 100083 No. 20, Beijing, Xueyuan Road Patentee before: Drilling Technology Int., Research Inst. of Petroleum Exploration Development |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010523 |