CN107227948A - The method that ground controls downhole orientation hydrajet tool - Google Patents
The method that ground controls downhole orientation hydrajet tool Download PDFInfo
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- CN107227948A CN107227948A CN201710357220.3A CN201710357220A CN107227948A CN 107227948 A CN107227948 A CN 107227948A CN 201710357220 A CN201710357220 A CN 201710357220A CN 107227948 A CN107227948 A CN 107227948A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 80
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims description 45
- 230000001133 acceleration Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000009466 transformation Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
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- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of method that ground controls downhole orientation hydrajet tool, comprise the following steps：A, when downhole orientation spraycan reach injection well depth position after, pass through ground control start downhole orientation spraycan；After b, downhole orientation spraycan start, identification spray-hole is along the circumferential orientation of well, when it is determined that behind initial circumferential orientation of the spray-hole in underground, is analyzed with the final injection orientation that sets, obtains direction and angle that spray gun needs to rotate；C, control spray gun direction as required and angle are rotated, orientation to specified orientation of the adjustment spray-hole along well circumference；D, after spray-hole is adjusted in place on spray gun, start to orient abrasive perforating, and carry out fracture acidizing construction.The present invention can carry out the regulation of spray-hole orientation, can effectively prevent that underground is hampered the influence come with spray gun shuttle belt, can be reliably completed the task of vectored injection, it is to avoid the interference that rotational band is come during instrument is gone into the well.
Description
Technical field
The present invention relates to a kind of method that ground controls downhole orientation hydrajet tool, for horizontal well reservoir reconstruction,
The completion transformation field belonged to used in oil exploitation.
Background technology
Water body of the reservoir bottom in Some Domestic oil field with the presence of energy more abundance.In horizontal well reservoir reconstruction,
How bottom water is not linked up while effective pressure break reservoir, be an importance in process choice and FRACTURING DESIGN.If
Using in reservoir drilled in middle horizontal hole, usual manner abrasive perforating, then in order to avoid communication bottom water, it is necessary to strict limitation seam
Height, have impact on reservoir reconstruction effect, and the later stage is difficult to refracturing, limit the extraction of reservoir remaining oil.If can lead to
Cross and orient the method for upward hydraulic jet perforation and carry out perforation, then can effectively guiding crack upwardly extend, the non-principal stress of transformation
Reservoir Body on direction, avoids bottom water body, improves reservoir reconstruction and builds yield.
Address that need, some companies increase the side of the local weight of spraycan using eccentric structure both at home and abroad at present
Formula, it is circumferential uneven and the mode of self-control attempts to realize vectored injection by gravity by instrument.For example, Chinese patent is public
A kind of automatic orientation hydraulic jetting fracturing instrument for fractured horizontal well disclosed in the number of opening CN104912534A, publication date is
On 09 16th, 2015, its top connection lower end was connected with the tool outer casing；It is provided with the left of tool outer casing internal boss partially
Intracardiac body；Use and be threadedly coupled between eccentric interior tube body and eccentric rotary spray gun；Boss stops with being set in the middle of eccentric interior tube body
Thrust bearing；Eccentric rotary spray gun is provided with the right side of boss inside tool outer casing；Set between eccentric rotary spray gun and tool outer casing
Put journal bearing；Position on eccentric rotary spray gun close to right part is provided with hole, and nozzle is placed in the hole；Lower contact is placed in partially
The right part of heart rotary spray gun；Lower contact is used to connect other facilities.By making the spray gun of eccentrically mounted weight freely turn in shell
It is dynamic, realize waterpower spray gun all the time in the horizontal direction.
But above-mentioned prior art easily meets card due to underground, and vibration is big during injection, causes spraycan not to be rotated in place
Or sprayed for a bit, thus have influence on jeting effect, it is impossible to meet construction requirement.And waterpower spray both at home and abroad at present
The spray-hole for penetrating instrument is arranged circumferentially along spray gun, can only realize the uniform transformation to reservoir near spray-hole；Even if only
Spray-hole is arranged in spray gun side, but due to not possessing underground accurate pointing ability, can not also realize wanting for downhole orientation injection
Ask.Therefore, so far, it can be realized without a kind of effective manner both at home and abroad and be reliably orientated injection.
The content of the invention
It is an object of the invention to overcome the above mentioned problem that prior art is present, there is provided a kind of ground control downhole orientation water
The method of power spraycan.The present invention can carry out the regulation of spray-hole orientation, can effectively prevent underground to be hampered and spray gun vibration
The influence brought, can be reliably completed the task of vectored injection, and can also realize ground remote control, greatly simplify
Operating process, the interference that rotational band is come during the instrument of it also avoid is gone into the well.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of method that ground controls downhole orientation hydrajet tool, it is characterised in that comprise the following steps：
A, when downhole orientation spraycan reach injection well depth position after, pass through ground control start downhole orientation spraycan；
After b, downhole orientation spraycan start, identification spray-hole is along the circumferential orientation of well, when it is determined that spray-hole is in the first of underground
Behind the circumferential orientation that begins, it is analyzed with the final injection orientation that sets, obtains direction and angle that spray gun needs to rotate；
C, control spray gun direction as required and angle are rotated, orientation of the adjustment spray-hole along well circumference to designated parties
Position；
D, after spray-hole is adjusted in place on spray gun, start to orient abrasive perforating, and carry out fracture acidizing construction.
In the step a, ground control mode includes transmitting electromagnetic wave, ground and produces pressure wave or throw RFID to underground
Control ball etc..
The downhole orientation hydrajet tool includes control device, drive device and spray gun, control device, drive device
It is sequentially connected with spray gun；Control device includes control chamber body, signal receiver, control board and down-hole battery group, signal
Receiver, control board and down-hole battery group are arranged on control chamber body, and signal receiver is connected with control board,
Control board is electrically connected with drive device, and control board is connected with gravity accelerometer, down-hole battery group respectively with
Signal receiver, control board and drive device connection；Drive device includes motor, motor and control chamber body
It is sealedly and fixedly connected；Spray gun is fixedly connected with the rotor of motor.
In the step b, after downhole orientation spraycan receives the startup order of ground transmission, downhole gravity accelerates
The circumferential orientation of well residing for sensor detection sensor itself is spent, and testing result is sent to control board, control electricity
Road plate is received after measurement result, with the angle value between the downhole gravity acceleration transducer and spray-hole that set, to be painted
Penetrate circumferential orientation values and carry out comparing calculation, obtain direction and angle that spray-hole needs to adjust, and obtain downhole gravity acceleration
Sensor finally needs the circumferential orientation of well being in.
In the step b, if control board calculates obtained adjustment angle numerical value and is equal to or less than tolerance value,
Then motor need not be acted；If calculating obtained adjustment angle numerical value is higher than tolerance value, motor is controlled
Action.
In the step c, control board sends control command to motor, and motor rotor revolves to assigned direction
Turn the angle specified.
In the step c, after the completion of rotor rotation, downhole gravity acceleration transducer detection sensor itself again
The circumferential orientation of residing well, if the circumferential orientation of the actually located well of gravity accelerometer and control board meter before
Obtained downhole gravity acceleration transducer finally needs the circumferential orientation of well being in consistent, then shows that rotor rotates
In place, control terminates；If it is inconsistent, showing that rotor rotation is not in place, then control board recalculates spray-hole
Direction and the angle of adjustment are needed, and continues the rotation of controlled motor rotor, until being rotated in place.
Control chamber is provided with the control chamber body outer wall, signal receiver, control board and down-hole battery group are set
Put in control chamber, the control chamber enclosure being sealedly and fixedly connected with control chamber is provided with control chamber.
The motor includes motor housing, motor stator and rotor, and motor stator is arranged in motor housing,
And be sealedly and fixedly connected with control chamber body, rotor top is located in motor stator, and lower end passes motor housing and spray gun
It is fixedly connected.
Rotor cutting ferrule is arranged with the rotor, rotor cutting ferrule is fixed in motor housing by the bearing of setting,
Coil is provided between rotor cutting ferrule and motor housing.
The control chamber body is provided with end cover with motor stator fixed connection place, and end cover is close with motor stator
Envelope is fixedly connected.
The rotor bottom coordinates with motor housing rotatory sealing.
The gravity accelerometer integrated form is arranged in control board.
The gravity accelerometer is arranged on motor stator.
The control board and motor are connected by electric connector.
A row or multi-row spray-hole is provided with the spray gun, and often row's spray-hole is arranged along spray gun axial orientation, is many
When arranging spray-hole, it is evenly distributed on spray gun.
The spray-hole is set to counterclockwise as just relative to gravity accelerometer in the circumferential direction of spray gun
Or be negative.
Using the advantage of the invention is that：
1st, the present invention can be realized is accurately positioned automatically along in circumferentially any orientation of well, and enters along the circumferentially any orientation of well
Row vectored injection, can on automatic identification spray gun spray-hole in the circumferential orientation of well residing for underground；Being capable of adjust automatically spray gun
Upper spray-hole is in the circumferential orientation of well residing for underground；Can the action of ground remote control, it is to avoid because because pipe during going into the well
The rotation of post itself stress causes the misoperation of downhole jetting tool.
2nd, the present invention carries out the regulation of spray-hole orientation by the way of motor drives spray gun rotation, because of motor tool
There is moment of torsion big, the characteristics of rotation is immovable after stopping can effectively prevent that underground is hampered the influence come with spray gun shuttle belt, energy
Enough it is reliably completed the task of vectored injection.And be driven by motor, ground remote control, pole can also be realized
The operating process that the earth simplifies, the interference that rotational band is come during the instrument of it also avoid is gone into the well.
3rd, the present invention is simple to operate, easy to use, for reservoir particular orientation can be oriented injection in underground, solution
Some oil gas fields due to bottom water cause the problem of reservoir reconstruction is limited.
To sum up, using downhole orientation hydrajet tool, can realize the automatic circumferentially positioned of spray-hole on spray gun and from
How accurately, reliably the purpose in the dynamic circumferential orientation of adjustment spray-hole, efficiently solve and realize the problem of downhole orientation sprays.Pin
There is bottom water to some or need the block of refracturing, the risk of pressure leak layer can be greatly reduced and repetition is effectively improved
Reservoir reconstruction volume during transformation.
Brief description of the drawings
Fig. 1 is the downhole tool pipe string schematic diagram of downhole orientation hydrajet tool；
Fig. 2 is three kinds of lance ejection pore size distribution expanded schematic diagrams；
Fig. 3 is downhole orientation hydrajet tool structural representation；
Fig. 4 is spray-hole and gravity accelerometer along the circumferential angle expanded schematic diagram of spray gun.
Marked in figure：1st, chamber enclosure is controlled；2nd, signal receiver；3rd, control board；4th, electric connector；5th, control chamber
Body；6th, down-hole battery group；7th, sealing ring；8th, motor housing；9th, bearing；10th, coil；11st, gravity accelerometer；12、
End cover；13rd, motor stator；14th, rotor cutting ferrule；15th, rotor；16th, spray gun；17th, spray-hole；18th, oil pipe or continuous
Oil pipe.
Embodiment
Embodiment 1
A kind of method that ground controls downhole orientation hydrajet tool, comprises the following steps：
A, when downhole orientation spraycan reach injection well depth position after, pass through ground control start downhole orientation spraycan；
After b, downhole orientation spraycan start, identification spray-hole 17 is along the circumferential orientation of well, when it is determined that spray-hole 17 is in underground
Initial circumferential orientation after, be analyzed with the final injection orientation that sets, obtain the direction that spray gun 16 needs to rotate
And angle；
C, control spray gun 16 direction as required and angle are rotated, and orientation of the adjustment spray-hole 17 along well circumference extremely refers to
Orientation；
D, after spray-hole 17 is adjusted in place on spray gun 16, start to orient abrasive perforating, and carry out fracture acidizing construction.
In the step a, ground control mode includes transmitting electromagnetic wave, ground and produces pressure wave or throw RFID to underground
Control ball etc..
The downhole orientation hydrajet tool includes control device, drive device and spray gun 16, control device, driving dress
Put and be sequentially connected with spray gun 16；Control device includes control chamber body 5, signal receiver 2, control board 3 and down-hole battery
Group 6, signal receiver 2, control board 3 and down-hole battery group 6 are arranged on control chamber body 5, signal receiver 2 and control
Circuit board 3 processed is connected, and control board 3 is electrically connected with drive device, and control board 3 is connected with gravity accelerometer
11, down-hole battery group 6 is connected with signal receiver 2, control board 3 and drive device respectively；Drive device includes driving electricity
Machine, motor is sealedly and fixedly connected with control chamber body 5；Spray gun 16 is fixedly connected with the rotor 15 of motor.
In the step b, after downhole orientation spraycan receives the startup order of ground transmission, downhole gravity accelerates
The circumferential orientation of well residing for the detection sensor itself of sensor 11 is spent, and testing result is sent to control board 3, is controlled
Circuit board 3 is received after measurement result, with the angle between the downhole gravity acceleration transducer 11 and spray-hole 17 that set
Value, circumferential orientation values to be sprayed carry out comparing calculation, obtain direction and angle that spray-hole 17 needs to adjust, and obtain underground weight
Power acceleration transducer 11 finally needs the circumferential orientation of well being in.
In the step b, if control board 3 calculates obtained adjustment angle numerical value and is equal to or less than tolerance
Value, then motor need not be acted；If calculating obtained adjustment angle numerical value is higher than tolerance value, control driving electricity
Motor-driven work.
In the step c, control board 3 sends control command to motor, and motor rotor 15 is to designated parties
The angle specified to rotation.
In the step c, after the completion of rotor 15 rotates, the detection sensor again of downhole gravity acceleration transducer 11
The circumferential orientation of well residing for itself, if the actually located well of gravity accelerometer 11 circumference orientation with controlling electricity before
Road plate 3, which calculates obtained downhole gravity acceleration transducer 11, finally needs the circumferential orientation of well being in consistent, then shows electricity
Machine rotor 15 is rotated in place, and control terminates；If it is inconsistent, it is not in place to show that rotor 15 rotates, then control board 3
Direction and angle that spray-hole 17 needs to adjust are recalculated, and continues controlled motor rotor 15 and is rotated, until being rotated in place.
Control chamber, signal receiver 2, control board 3 and down-hole battery group are provided with the outer wall of control chamber body 5
6 are arranged in control chamber, and the control chamber enclosure 1 being sealedly and fixedly connected with control chamber is provided with control chamber.
The motor includes motor housing 8, motor stator 13 and rotor 15, and motor stator 13 is arranged on motor
In shell 8, and it is sealedly and fixedly connected with control chamber body 5, the top of rotor 15 is located in motor stator 13, and lower end passes electricity
Machine shell 8 is fixedly connected with spray gun 16.
Rotor cutting ferrule 14 is arranged with the rotor 15, rotor cutting ferrule 14 is fixed on motor by the bearing 9 of setting
In shell 8, coil 10 is provided between rotor cutting ferrule 14 and motor housing 8.
The control chamber body 5 is provided with end cover 12, end cover 12 and electricity with the fixed connection place of motor stator 13
Machine stator 13 is sealedly and fixedly connected.
The bottom of rotor 15 coordinates with the rotatory sealing of motor housing 8.
The integrated form of gravity accelerometer 11 is arranged in control board 3.Or the acceleration of gravity is passed
Sensor 11 is arranged on motor stator 13.
The control board 3 and motor are connected by electric connector 4.
A row or multi-row spray-hole 17 is provided with the spray gun 16, and often row's spray-hole 17 is arranged along the axial orientation of spray gun 16
Row, when being multiple rows of spray-hole 17, are evenly distributed on spray gun 16.
The spray-hole 17 is set to side counterclockwise relative to gravity accelerometer 11 in the circumferential direction of spray gun 16
Xiang Weizheng is negative.
In the present embodiment, various sealings coordinate to be realized by sealing ring 7.
Embodiment 2
The present invention will be further described for the present embodiment combination accompanying drawing.Here, the exemplary embodiment and its explanation of the present invention
For explaining the present invention, but it is not as a limitation of the invention.
As illustrated, the present invention is broadly divided into ground control and underground performs two parts.Ground control segment is main to well
Lower send starts order, it is ensured that instrument is just started working when needing, and can farthest save battery electric quantity；Underground
Part is downhole orientation spraycan, mainly realizes being automatically positioned and circumferentially being adjusted along well for the nozzle of spray gun 16.
Fig. 1 is the downhole tool pipe string schematic diagram for the orientation hydrajet tool transformed for fracture acidizing.Downhole orientation
Spraycan is made up of control device, drive device and the part of spray gun 16 3, and each several part is connected by tubing round thread.Downhole orientation
Spraycan is connected with oil pipe or coiled tubing 18, in oil pipe or the bottom of coiled tubing 18.
If Fig. 2 is a kind of lance ejection hole of orientation hydrajet tool transformed for fracture acidizing of the present invention
Distribution schematic diagram（Expanded view）.Spray-hole is often arranged on spray gun 16 axially to arrange along spray gun.Changed based on spray gun structure design or reservoir
Needs are made, 1 row, 2 rows or 3 row's spray-holes 17 can be set, shown in Fig. 2, dotted line is spray gun axial direction in figure.
If Fig. 3 is a kind of orientation hydrajet tool structural representation transformed for fracture acidizing of the present invention.
After signal receiver 2 receives the start command signal of ground transmission, control board 3 is transmitted the signal to, circuit is controlled
Plate 3 is identified after enabled instruction, and normal operating conditions is adjusted to from holding state, at this moment, downhole gravity acceleration transducer 11
Start to detect the circumferential orientation of well residing for itself, and testing result is sent to control board 3, control board 3 passes through
Comparing calculation, determines that motor needs direction and the angle rotated, then motor rotor 15 rotates, rotor 15 and spray
Rifle 16 is connected through a screw thread, therefore spray gun 16 rotates equidirectional and angle with rotor 15.The well circumference side of spray-hole 17
After the completion of the adjustment of position, downhole gravity acceleration transducer 11 detects the circumferential orientation of well residing for itself again, if detection side
Position with it is expected that orientation is identical, then it is assumed that the angle adjustment of spray gun 16 terminates；If detect orientation with it is expected that orientation is different, then it is assumed that spray
The angle adjustment of rifle 16 is not in place, and control board 3 may proceed to be presently in circumferential orientation according to spray-hole 17 to be adjusted, until
The circumferential orientation adjustment of spray-hole 17 is in place.
Control board 3 is in holding state in general, in holding state, and only signal receiving function is being just
Often work, after startup order is received, control board 3 just can be converted to normal operating conditions from holding state.Normal
During working condition, if on spray gun 16 angle adjustment of spray-hole 17 in place, control board 3 can be automatically converted to holding state.
It so can effectively extend the working time of underground location spraycan.
Downhole gravity acceleration transducer 11 is integrated in control board 3.Motor uses direct current torque motor.
If Fig. 4 is a kind of orientation hydrajet tool lance ejection hole 17 transformed for fracture acidizing of the present invention
With downhole gravity acceleration transducer 11 along the circumferential angle schematic diagram of spray gun（Expanded view）.After the completion of ground-mounted, first have to
Angle in spray gun circumferential direction of measurement spray-hole 17 and downhole gravity acceleration transducer 11, determine spray-hole 17 relative to
Downhole gravity acceleration transducer 11 is in the circumferential direction of spray gun（Counter clockwise direction is set to be just or be negative）, and folder
Angle and directioin parameter, and underground need the circumferential orientation angular dimensions sprayed to be arranged in advance in control board 3, are driven to calculate
The dynamic motor anglec of rotation and direction provide foundation.
After downhole orientation spraycan receives the startup order of ground transmission, downhole control is started working, well
The circumferential orientation of well of the lower gravity accelerometer 11 first residing for detection sensor itself, and testing result is sent to well
Lower control device, downhole control is received after measurement result, with the downhole gravity acceleration transducer 11 that is previously entered with
Angle value, circumferential orientation values to be sprayed between lance ejection hole 17 carry out comparing calculation, and obtaining lance ejection hole 17 needs tune
Whole direction and angle, and obtain the circumferential orientation of well that downhole gravity acceleration transducer 11 finally needs to be in.If meter
Obtained adjustment angle numerical value is equal to or less than tolerance value, then motor need not be acted；If calculating what is obtained
Adjustment angle numerical value is higher than tolerance value, then motor is acted；If motor needs action, controlled to fill by underground
Put to motor and send control command, motor rotor 15 rotates the angle specified to assigned direction；Rotor 15 revolves
After the completion of turning, the circumferential orientation of the well of downhole gravity acceleration transducer 11 again residing for detection sensor itself, if sensing
The circumferential orientation of the actually located well of device calculates the final needs of obtained downhole gravity acceleration transducer 11 with control device before
The circumferential orientation of well being in is consistent, then shows that the rotation of rotor 15 causes, control terminates；If the actually located well of sensor
Calculating obtained downhole gravity acceleration transducer 11 to orientation and downhole control before near the eyes finally needs the well being in
It is inconsistent to orientation near the eyes, then show that rotor 15 rotates not in place, then downhole control can recalculate lance ejection
Hole 17 needs direction and the angle adjusted, and continues controlled motor rotor 15 and rotate, until being rotated in place.
Embodiment 3
After it is determined that reservoir needs the well circumference orientation sprayed, input spray to downhole orientation spraycan in advance on the ground
Bearing data（I.e. spray-hole finally needs corresponding well circumferentially injection orientation）, set the direction that underground needs to spray.When
When needing construction, downhole orientation spraycan is connected with oil pipe or coiled tubing 18, underground is sent into.When downhole orientation sprays work
Tool is reached behind injection well depth position, sends ground control instruction to start underground by way of throwing RFID communication ball into oil pipe
Vectored injection instrument, when RFID communication ball with downhole fluid by downhole orientation spraycan when, in downhole orientation spraycan
The RFID reader put receives control signal, and starts control program, and downhole gravity acceleration transducer 11 starts automatic knowledge
Other spray-hole 17 is along the circumferential orientation of well, when it is determined that behind initial circumferential orientation of the spray-hole 17 in underground, with set it is final
Injection orientation is analyzed, and obtains direction and angle that spray gun needs to rotate；Afterwards, control device is rotation control command
Send to motor, control motor direction as required and angle are rotated, and adjust the edge of spray-hole 17 on spray gun
Circumferential orientation to the specified orientation of well.
Downhole gravity acceleration transducer 11 is arranged on motor stator 13.Control device, drive device and spray gun are on ground
Face is sequentially connected by screw thread, and spray gun is connected on motor rotor.After the completion of connection, downhole gravity acceleration is measured first and is passed
Spray-hole 17 is along the circumferential angle of instrument and relative direction on sensor 11 and spray gun, and by control board under metrical information input well
3。
RFID communication ball uses high temperature resistant RFID chip, and chip is fixed on high polymer material and is made in spheroid；On ground
In advance to RFID chip write control information.
Embodiment 4
When downhole orientation spraycan reach injection well depth position after, by electromagnetic communication mode send ground control instruction come
Start downhole orientation spraycan, downhole orientation spraycan is received after control signal startup, downhole gravity acceleration sensing
Device 11 starts automatic identification spray-hole 17 along the circumferential orientation of well, when it is determined that behind initial circumferential orientation of the spray-hole 17 in underground,
It is analyzed with the final injection orientation that sets, obtains direction and angle that spray gun needs to rotate；Afterwards, control device
Rotation control command is sent to motor, the direction as required of controlled motor rotor 15 and angle are rotated, adjusted
Orientation to specified orientation of the spray-hole 17 along well circumference on spray gun.
Embodiment 5
After downhole orientation spraycan reaches injection well depth position, ground control is sent by geostatic pressure wave communication mode and referred to
Make starting downhole orientation spraycan, the pressure sensor built in downhole orientation spraycan receives control signal startup
Afterwards, downhole gravity acceleration transducer 11 starts automatic identification spray-hole 17 along the circumferential orientation of well, when it is determined that spray-hole 17 exists
Behind the initial circumferential orientation of underground, it is analyzed with the final injection orientation that sets, obtains the side that spray gun needs to rotate
To and angle；Afterwards, control device sends rotation control command to motor, the side of controlled motor rotor 15 as required
Rotated to angle, orientation to specified orientation of the spray-hole 17 along well circumference on adjustment spray gun.
After spray-hole 17 is adjusted in place on spray gun, then start to orient abrasive perforating, and carry out fracture acidizing construction.Complete
After construction, oil pipe or coiled tubing 18 drag downhole jetting tool to next spray site position, the operation of next section of progress.
Claims (10)
1. a kind of method that ground controls downhole orientation hydrajet tool, it is characterised in that comprise the following steps：
A, when downhole orientation spraycan reach injection well depth position after, pass through ground control start downhole orientation spraycan；
After b, downhole orientation spraycan start, spray-hole is recognized（17）Along the circumferential orientation of well, when it is determined that spray-hole（17）
Behind the initial circumferential orientation of underground, it is analyzed with the final injection orientation that sets, obtains spray gun（16）Need rotation
Direction and angle；
C, control spray gun（16）Direction and angle as required is rotated, and adjusts spray-hole（17）Along the circumferential orientation of well
To specified orientation；
D, work as spray gun（16）Upper spray-hole（17）After being adjusted in place, start to orient abrasive perforating, and carry out fracture acidizing construction.
2. the method that ground according to claim 1 controls downhole orientation hydrajet tool, it is characterised in that：The step
In rapid a, ground control mode includes transmitting electromagnetic wave, ground and produces pressure wave or throw RFID control balls to underground.
3. the method that ground according to claim 2 controls downhole orientation hydrajet tool, it is characterised in that：The well
Lower orientation hydrajet tool includes control device, drive device and spray gun（16）, control device, drive device and spray gun（16）
It is sequentially connected；Control device includes control chamber body（5）, signal receiver（2）, control board（3）With down-hole battery group
（6）, signal receiver（2）, control board（3）With down-hole battery group（6）It is arranged at control chamber body（5）On, signal connects
Receive device（2）With control board（3）Connection, control board（3）Electrically connected with drive device, control board（3）It is connected with
Gravity accelerometer（11）, down-hole battery group（6）Respectively with signal receiver（2）, control board（3）And drive device
Connection；Drive device includes motor, motor and control chamber body（5）It is sealedly and fixedly connected；Spray gun（16）With driving
The rotor of motor（15）It is fixedly connected.
4. the method that ground according to claim 3 controls downhole orientation hydrajet tool, it is characterised in that：The step
In rapid b, after downhole orientation spraycan receives the startup order of ground transmission, downhole gravity acceleration transducer（11）Inspection
The circumferential orientation of well residing for sensor itself is surveyed, and testing result is sent to control board（3）, control board（3）
Receive after measurement result, with the downhole gravity acceleration transducer set（11）With spray-hole（17）Between angle value,
Circumferential orientation values to be sprayed carry out comparing calculation, obtain spray-hole（17）Direction and the angle of adjustment are needed, and obtains underground weight
Power acceleration transducer（11）Finally need the circumferential orientation of well being in.
5. the method that ground according to claim 4 controls downhole orientation hydrajet tool, it is characterised in that：The step
In rapid b, if control board（3）Calculate obtained adjustment angle numerical value and be equal to or less than tolerance value, then motor
It need not act；If calculating obtained adjustment angle numerical value is higher than tolerance value, control motor action.
6. the method that ground according to claim 5 controls downhole orientation hydrajet tool, it is characterised in that：The step
In rapid c, control board（3）Control command, motor rotor are sent to motor（15）Specified to assigned direction rotation
Angle.
7. the method that ground according to claim 6 controls downhole orientation hydrajet tool, it is characterised in that：The step
In rapid c, rotor（15）After the completion of rotation, downhole gravity acceleration transducer（11）Again residing for detection sensor itself
Well circumference orientation, if gravity accelerometer（11）The circumferential orientation of actually located well and control board before（3）
Calculate obtained downhole gravity acceleration transducer（11）Finally need the circumferential orientation of well being in consistent, then show that motor turns
Son（15）It is rotated in place, control terminates；If it is inconsistent, showing rotor（15）Rotation is not in place, then control board
（3）Recalculate spray-hole（17）Direction and the angle of adjustment are needed, and continues controlled motor rotor（15）Rotation, until rotation
In place.
8. the method that ground according to claim 7 controls downhole orientation hydrajet tool, it is characterised in that：The control
Chamber body processed（5）Control chamber, signal receiver are provided with outer wall（2）, control board（3）With down-hole battery group（6）Set
The control chamber enclosure being sealedly and fixedly connected with control chamber is provided with control chamber, in control chamber（1）.
9. the method that ground according to claim 8 controls downhole orientation hydrajet tool, it is characterised in that：It is described to drive
Dynamic motor includes motor housing（8）, motor stator（13）And rotor（15）, motor stator（13）It is arranged on motor housing
（8）It is interior, and with control chamber body（5）It is sealedly and fixedly connected, rotor（15）Top is located at motor stator（13）Interior, lower end is worn
Go out motor housing（8）With spray gun（16）It is fixedly connected.
10. the method that ground according to claim 9 controls downhole orientation hydrajet tool, it is characterised in that：It is described
Rotor（15）On be arranged with rotor cutting ferrule（14）, rotor cutting ferrule（14）Motor housing is fixed on by the bearing of setting（8）
It is interior, rotor cutting ferrule（14）With motor housing（8）Between be provided with coil.
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| CN201710357220.3A CN107227948A (en) | 2017-05-19 | 2017-05-19 | The method that ground controls downhole orientation hydrajet tool |
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|---|---|---|---|
| CN201710357220.3A CN107227948A (en) | 2017-05-19 | 2017-05-19 | The method that ground controls downhole orientation hydrajet tool |
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| CN108386152A (en) * | 2018-03-16 | 2018-08-10 | 江苏航天鸿鹏数控机械有限公司 | The extension hanger and its control method controlled by ground bit pressure |
| CN108386153A (en) * | 2018-03-16 | 2018-08-10 | 江苏航天鸿鹏数控机械有限公司 | Pass through the extension hanger and its control method of the rotation control of ground drilling rod |
| CN108412450A (en) * | 2018-03-16 | 2018-08-17 | 江苏航天鸿鹏数控机械有限公司 | The extension hanger and its control method controlled by ground RFID communication ball |
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| CN108533215A (en) * | 2018-03-16 | 2018-09-14 | 江苏航天鸿鹏数控机械有限公司 | The underground back-pressure valve and control method controlled by ground tubing string acoustic communication |
| CN108708682A (en) * | 2018-04-24 | 2018-10-26 | 江苏航天鸿鹏数控机械有限公司 | Ground remote control downhole hydraulic cutting tool and control method |
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| CN108386152A (en) * | 2018-03-16 | 2018-08-10 | 江苏航天鸿鹏数控机械有限公司 | The extension hanger and its control method controlled by ground bit pressure |
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| CN108425656A (en) * | 2018-03-16 | 2018-08-21 | 江苏航天鸿鹏数控机械有限公司 | The cementing well stage collar and control method controlled by geostatic pressure wave |
| CN108468525A (en) * | 2018-03-16 | 2018-08-31 | 江苏航天鸿鹏数控机械有限公司 | The extension hanger and its control method controlled by electromagnetic wave |
| CN108468531A (en) * | 2018-03-16 | 2018-08-31 | 江苏航天鸿鹏数控机械有限公司 | Pass through the underground back-pressure valve and control method of drilling rod speed Control |
| CN108518195A (en) * | 2018-03-16 | 2018-09-11 | 江苏航天鸿鹏数控机械有限公司 | Time-controlled extension hanger and its control method |
| CN108518197A (en) * | 2018-03-16 | 2018-09-11 | 江苏航天鸿鹏数控机械有限公司 | The cementing well stage collar and control method controlled by downhole optic fiber |
| CN108518201A (en) * | 2018-03-16 | 2018-09-11 | 江苏航天鸿鹏数控机械有限公司 | A kind of anti-overflow self-starting underground back-pressure valve |
| CN108518198A (en) * | 2018-03-16 | 2018-09-11 | 江苏航天鸿鹏数控机械有限公司 | Remote control hydraulic pressure cementing well stage collar and control method |
| CN108533215A (en) * | 2018-03-16 | 2018-09-14 | 江苏航天鸿鹏数控机械有限公司 | The underground back-pressure valve and control method controlled by ground tubing string acoustic communication |
| CN108708682A (en) * | 2018-04-24 | 2018-10-26 | 江苏航天鸿鹏数控机械有限公司 | Ground remote control downhole hydraulic cutting tool and control method |
| CN110043238A (en) * | 2019-06-05 | 2019-07-23 | 西南石油大学 | A kind of shale oil recovery method |
| CN110043238B (en) * | 2019-06-05 | 2021-06-11 | 西南石油大学 | Shale oil exploitation method |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200917 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Applicant before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
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