CN209324256U - Inch rotary steerable tool - Google Patents
Inch rotary steerable tool Download PDFInfo
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- CN209324256U CN209324256U CN201821979977.2U CN201821979977U CN209324256U CN 209324256 U CN209324256 U CN 209324256U CN 201821979977 U CN201821979977 U CN 201821979977U CN 209324256 U CN209324256 U CN 209324256U
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- backup arm
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- hydraulic pressure
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Abstract
The utility model relates to a kind of 4-3/4 inches of rotary steerable tool, a kind of control of automated closed-loop with drilling guidance tool is bored, mainly include upper drive shaft, hydraulic pressure unit, backup arm, bearing, lower drive shaft, electronic circuit unit, azimuthal measurement unit.Under the control of control module, to backup arm, 3 backup arms at various pressures, can form a resultant force, creep into drilling tool towards required direction pressure needed for hydraulic pressure unit provides, with the purpose realized automatic guide, control drilling trace.Backup strength in backup part is big, and build angle rate is high；The control of hydraulic pressure unit pressure stablizes, is accurate, rapidly；Tool overall work is stable, reliable；Tool maintenance maintenance is simple, quick.
Description
Technical field
The present invention relates to petroleum, exploration engineering field, and in particular to arrives a kind of 4-3/4 inches of rotary steering head underground work
Tool is applied to petroleum with brill drilling applications.
Background technique
Existing rotary steerable tool, mainly there is the following two kinds: pushing type and directional type.The rotary steering work of directional type
Tool, be to have the mechanical structure of controllable bending direction and angle by instrument internal to realize, structure is more complicated, maintenance and
It maintains comparatively laborious.The rotary steering downhole tool of external existing 4-3/4 inches of pushing type is the whirlpool that oil pump is pushed using mud
Wheel, provides the pressure of hydraulic pressure unit.Different discharge capacities uses different turbines.Scene variation discharge capacity needs replacing phase when bigger
The turbine answered can just be such that instrument works normally.Adapt to the indifferent of live displacement variation.Functional test is carried out in maintenance
When also need special equipment simulation mud push turbine.In order to make up disadvantages described above, we do in rotary steering overall structure
Redesign, combined with pump using direct current generator, provide hydraulic thrust by power, control can be made rapidly, accurately, and not by
The influence of mud displacement variation.
Summary of the invention
In order to overcome the disadvantage of directional type and the two kinds of rotary steerable tool of pushing type respectively, the purpose of the present invention is
A kind of novel 4-3/4 inch rotary steerable tool (RSU) is provided.Due to use DC brushless motor, small-sized efficient pump and
The design that backup arm matches, so that the rotary steerable tool backup power of the design is big, build angle rate is high, while no longer being arranged by mud
The influence of variation is measured, and is maintained also very convenient.Hydraulic mode is pushed relative to mud, pressure control is more quasi-
Really, special equipment rapidly, is not needed in maintenance or functional test yet come simulate mud flowing, reduce maintenance at
This.
To achieve the above object, the present invention uses following design:
Body diameter 149mm, fills 5-7/8 inches of (149.225mm) centralizers, and minimum can survey 6 inches of upper ends wellbore
It is attached with conducting ring and other instruments, lower end is the drill bit connection buckle of standard.Electronic circuit unit and hydraulic pressure unit are mounted in
It on drill collar wall, is rotated together with drilling tool, backup arm unit does not rotate.Using reliable dynamic between hydraulic pressure unit and backup arm unit
It is tightly connected.
Inch rotary steerable tool is mainly by azimuthal measurement unit 1, electronic circuit unit 2, hydraulic pressure unit 3, liquid
Pressure pipe road 33, upper drive shaft 4, backup arm unit 5, lower drive shaft 6, bearing 7 form, wherein azimuthal measurement unit 1, electric wire
Road unit 2, hydraulic pressure unit 3 are mounted in drive shaft 4, are connect by bearing 7 and fluid pressure line 33 with backup arm unit 5.
Hydraulic pressure unit 3 is mainly made of hydraulic module 1, hydraulic module 2 31, hydraulic module 3 32, wherein fluid die
Block 1 is mainly made of direct current generator 1, pump 1 and oil sac 1, and hydraulic module 2 31 is mainly by direct current generator two
311, pump 2 312 and oil sac 2 313 form, and hydraulic module 3 32 is mainly by direct current generator 3 321, pump 3 322 and oil sac 3 323
Composition.
Backup arm unit 5 is mainly made of backup arm 1, backup arm 2 52, backup arm 3 53.
Azimuthal measurement unit 1 includes three axis accelerometer 11, orientation control Acquisition Circuit 12 and power module 1, orientation
Measuring unit 1 acquires the tool face azimuth of backup arm in backup arm unit 5 under trigger signal control.
Electronic circuit unit 2 is mainly made of control circuit module 21 and power module 2 22, and control circuit module 21 is logical
The revolving speed of the direct current generator 1 controlled in hydraulic pressure unit 3, direct current generator 2 311, direct current generator 3 321 is crossed, and then drives pump
One 302, pump 2 312, pump 3 322 are by the hydraulic oil in oil sac 1 in hydraulic pressure unit 3, oil sac 2 313, oil sac 3 323, warp
Fluid pressure line 33 is beaten to backup arm unit 5, and backup arm 1, backup arm 2 52, backup arm 3 53 are formed and closed under hydraulic action
Power realizes automatic guide.
The invention has the advantages that
1, backup part backup strength is big, and build angle rate is high；
2. the control of hydraulic pressure unit pressure stablizes, is accurate, rapidly；
3. tool overall work is stable, reliable；
4, tool maintenance maintenance is simple, quick.
Detailed description of the invention
Fig. 1 4-3/4 inches of rotary steerable tool overall structure diagram of the present invention；
Fig. 2 4-3/4 inches of rotary steerable tool azimuthal measurement cellular construction schematic diagram of the present invention；
Fig. 3 4-3/4 inches of rotary steerable tool electronic circuit unit structural schematic diagram of the present invention；
Fig. 4 4-3/4 inches of rotary steerable tool hydraulic pressure unit of the present invention and backup arm cellular construction schematic diagram；
Fig. 5 4-3/4 inches of rotary steerable tool block diagram of the present invention；
One schematic diagram of hydraulic module in Fig. 6 4-3/4 inches of rotary steerable tool hydraulic pressure unit of the present invention.
Specific embodiment
As shown in Figure 1 and Figure 2,4-3/4 inches of rotary steerable tools (RSU) are mainly by azimuthal measurement unit 1, electronic circuit
Unit 2, hydraulic pressure unit 3, fluid pressure line 33, upper drive shaft 4, backup arm unit 5, lower drive shaft 6, bearing 7 form, wherein side
Position measuring unit 1, electronic circuit unit 2, hydraulic pressure unit 3 are mounted in drive shaft 4, by bearing 7 and fluid pressure line 33 with
Backup arm unit 5 connects.
As shown in figure 3, figure 4 and figure 5, azimuthal measurement unit 1 is connected with electronic circuit unit 2, electronic circuit unit 2 and liquid
Unit 3 is pressed to be connected.Hydraulic pressure unit 3 is connected with backup arm unit 5 by fluid pressure line 33, there is dynamic sealing form company between the two
It connects.Upper drive shaft 4 is connected with backup arm unit 5 by bearing 7, and backup arm unit 5 is connected with lower drive shaft 6 by bearing 7.Orientation
Measuring unit 1, electronic circuit unit 2, hydraulic pressure unit 3, upper drive shaft 4, lower drive shaft 6 are to turn with the top of raised platform around a well dynamic, are pushed away
It is the support borehole wall by arm unit 5, this part does not rotate.Rotation is that bearing is connect with non-rotating part.Hydraulic pressure unit 3 and backup
Hydraulic between arm unit 5 is communicated through dynamic sealing design.Backup arm unit 5 is equipped with cylindricality small magnet, electronic circuit unit 2
Equipped with magnetic detection sensor, it to be used for triggering collection azimuthal section information.Azimuthal measurement unit 1 includes three axis accelerometer 11, side
Position control Acquisition Circuit 12 and power module 1, azimuthal measurement unit 1 acquire in backup arm unit 5 under trigger signal control
The tool face azimuth of backup arm, this tool-face information give electronic circuit unit 2, through 2 inner control circuit module of electronic circuit unit
After 21 analysis and Controls, control instruction is issued to hydraulic pressure unit 3, controls direct current generator 1, direct current generator 2 311, direct current generator
3 321 revolving speed, so drive pump 1, pump 2 312, pump 3 322 by oil sac 1 in hydraulic pressure unit 3, oil sac 2 313,
Hydraulic oil in oil sac 3 323 is beaten through fluid pressure line 33 and dynamic sealing part to backup arm unit 5, backup arm 1, backup
Under hydraulic action, piston stretches out for arm 2 52, backup arm 3 53, releases support arm, and support arm is different to the support force of the borehole wall, shape
At resultant force, control instrument is crept into required direction.
As shown in Figure 5, Figure 6, one 30 working principle of hydraulic module in hydraulic pressure unit 3 are as follows: hydraulic oil is stored in oil sac 1
In, it is connected by filter screen 29 with pump 1.Direct current generator 1 rotates, and drives one 302 rotation of pump, hydraulic oil is pumped into work
In plug 69, piston 69 is released.Pressure sensor 79 measures the pressure in piston 69, and sends electronic circuit unit 2 to, works as pressure
When power reaches certain value, safety valve 59, which is opened, carries out pressure release, prevents pressure limit from damaging hydraulic pressure unit 3.Throttle valve 8 is normally opened
Valve, hydraulic oil are returned in oil sac 1 by throttle valve 8.Hydraulic module 2 31 and hydraulic module 3 32 and hydraulic module 1
Working principle it is identical.
The foregoing is merely presently preferred embodiments of the present invention, and scope of protection of the present invention is not limited thereto.It is any to be based on
Equivalent transformation on the basis of technical solution of the present invention is all fallen within the protection scope of the present invention.
Claims (5)
1.4-3/4 inches of rotary steerable tools, it is characterised in that: mainly by azimuthal measurement unit (1), electronic circuit unit (2),
Hydraulic pressure unit (3), fluid pressure line (33), upper drive shaft (4), backup arm unit (5), lower drive shaft (6), bearing (7) composition,
In, azimuthal measurement unit (1), electronic circuit unit (2), hydraulic pressure unit (3) are mounted on drive shaft (4), are passed through bearing (7)
It is connect with fluid pressure line (33) with backup arm unit (5).
2. 4-3/4 inches of rotary steerable tool according to claim 1, which is characterized in that hydraulic pressure unit (3) is mainly by liquid
Die block one (30), hydraulic module two (31), hydraulic module three (32) composition, wherein hydraulic module one (30) is mainly by direct current
Motor one (301), one (302) of pump and oil sac one (303) composition, hydraulic module two (31) is mainly by direct current generator two (311), pump
Two (312) and oil sac two (313) composition, hydraulic module three (32) is mainly by direct current generator three (321), three (322) of pump and oil sac
Three (323) composition.
3. 4-3/4 inches of rotary steerable tool according to claim 1, which is characterized in that backup arm unit (5) mainly by
Backup arm one (51), backup arm two (52), backup arm three (53) composition.
4. 4-3/4 inches of rotary steerable tool according to claim 1, which is characterized in that azimuthal measurement unit (1) includes
Three axis accelerometer (11), orientation control Acquisition Circuit (12) and power module one (13), azimuthal measurement unit (1) are believed in triggering
The tool face azimuth of backup arm in number lower acquisition backup arm unit (5) of control.
5. 4-3/4 inches of rotary steerable tool according to claim 1 or 2 or 3, electronic circuit unit (2) is mainly by controlling
Circuit module (21) processed and power module two (22) composition, control circuit module (21) pass through straight in control hydraulic pressure unit (3)
Galvanic electricity machine one (301), direct current generator two (311), direct current generator three (321) revolving speed, and then drive pump one (302), pump two
(312), three (322) of pump are by the hydraulic oil in oil sac one (303) in hydraulic pressure unit (3), oil sac two (313), oil sac three (323),
It beats through fluid pressure line (33) to backup arm unit (5), backup arm one (51), backup arm two (52), backup arm three (53) are hydraulic
Under effect, resultant force is formed, realizes automatic guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979977.2U CN209324256U (en) | 2018-11-28 | 2018-11-28 | Inch rotary steerable tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821979977.2U CN209324256U (en) | 2018-11-28 | 2018-11-28 | Inch rotary steerable tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324256U true CN209324256U (en) | 2019-08-30 |
Family
ID=67711958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821979977.2U Active CN209324256U (en) | 2018-11-28 | 2018-11-28 | Inch rotary steerable tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324256U (en) |
-
2018
- 2018-11-28 CN CN201821979977.2U patent/CN209324256U/en active Active
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