CN105822251A - Motor-driven extrusion-type underground annular blowout preventer and communication method thereof - Google Patents
Motor-driven extrusion-type underground annular blowout preventer and communication method thereof Download PDFInfo
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- CN105822251A CN105822251A CN201610293617.6A CN201610293617A CN105822251A CN 105822251 A CN105822251 A CN 105822251A CN 201610293617 A CN201610293617 A CN 201610293617A CN 105822251 A CN105822251 A CN 105822251A
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- 238000004891 communication Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 26
- 238000007906 compression Methods 0.000 claims abstract description 41
- 230000006835 compression Effects 0.000 claims abstract description 40
- 238000012856 packing Methods 0.000 claims description 44
- 230000008569 process Effects 0.000 claims description 21
- 235000009854 Cucurbita moschata Nutrition 0.000 claims description 17
- 240000001980 Cucurbita pepo Species 0.000 claims description 17
- 235000009852 Cucurbita pepo Nutrition 0.000 claims description 17
- 235000020354 squash Nutrition 0.000 claims description 17
- 210000002445 nipple Anatomy 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 description 29
- 239000007789 gas Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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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
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Abstract
The invention discloses a motor-driven extrusion-type underground annular blowout preventer, and belongs to the technical field of underground blowout prevention. The motor-driven extrusion-type underground annular blowout preventer mainly comprises a communication module, a control module, a power module and an execution module. By the motor-driven extrusion-type underground annular blowout preventer, positive and negative rotation of a motor is achieved under the control of the control module; power is transmitted to a compression tube of the power module; and the compression tube compresses a rubber tube or reversely drags the rubber tube to achieve sealing and unsealing of the blowout preventer. The motor-driven underground annular blowout preventer can be repeatedly used, is suitable for a plurality of well types, can be used in a whole well section, and is driven by the motor; sealing and unsealing are relatively easy, and the efficiency is relatively high; and the application prospect is wide.
Description
Technical field
The present invention relates to a kind of blowout prevention technology during oilfield drilling during generation well kick, blowout.
Background technology
In each task of oil exploration and oil field development, drilling well plays a very important role, such as find and confirm oil gas structure, obtain commercial oil, verify hydrocarbon-bearing area and the reserves of certified oil gas structure, obtain the geologic information about oil field and exploitation data, finally crude oil is got from underground ground etc. what none completed not by drilling well, drilling well is an important link of exploration and exploitation petroleum and natural gas resource, is exploration and the important means of exploitation oil.
In drilling process, when boring chance oil-gas Layer, if bottom pressure is less than strata pressure, formation fluid will enter well, after layer fluid enters well in large quantities, it is possible to produces well kick, blowout, even catches fire, lead to major accident.Therefore, in drilling process, adopt an effective measure and carry out the extremely important link that Oil/gas Well Stress control is drilling safety.But, owing to the pressure of high-pressure oil-gas layer is difficult to Accurate Prediction, especially all the more so when new block pries into well, therefore in drilling process, the thing of stratum high-pressure oil gas entrance well happens occasionally.All it is likely to occur well kick gas blowout accident in the case of three kinds below: in drilling process, remove drilling rod process, empty well state.Empty well state generation blowout probability is the lowest, if the process of making a trip can control the speed that makes a trip well, prevent excessive suction force, can effectively reduce well kick gas blowout accident occurrence probability, and in drilling process because of cannot Accurate Prediction high-pressure oil gas stressor layer, occur well kick blowout maximum probability.
When find well kick, blowout sign time, rapidly and efficiently carry out closing well and kill-job operation is the important guarantee effectively reducing gas blowout accident.Traditional pass well operations (domestic multiplex soft closing) is: after finding well kick, first open choke valve, turn off preventer, so little to wellhead assembly and annular space water hammer, but owing to its closed-in time is long, formation fluid intrusion volume is relatively big, and the extra formation fluid increased also can have additonal pressure to wellhead assembly and stratum, can bring difficulty to kill-job.
At present, preventer used in the process of oilfield drilling is installed on well head more, in drilling process, arrow type check-valves can be installed at the nearly drill bit of drill string and prevent the adverse current of fluid in drill string, and wellhead blowout preventor is used for insulating annular space in drilling process, only when needs carry out cutting off drilling rod operation time, just carry out full hole shut-in well.When operator are after the well kick phenomenon that aboveground discovery down-hole is possible, opening control system completes wellhead blowout preventor and closes well operations, to prevent gas blowout accident from occurring.The action of this kind of preventer, it is necessary to rely on experience and the responsibility of operator, be only possible to prevent gas blowout accident from occurring.If carelessness when lacking experience or work of operator, fail to find well kick or blowout sign in time, serious accident will occur.And traditional wellhead blowout preventor is closing after well operations, carry out for the mud lubrication operating time long, more bottoms stream can be caused to invade in pit shaft, increase down-hole annular pressure reduction, thus increase the difficulty controlling blowout.If a kind of downhole annular blowout preventer therefore can be invented with drill string G.I.H, when ground receives shaft bottom well kick blowout signal time, operation downhole annular blowout preventer packing annular space, and the check-valves at nearly drill bit can effectively insulate in drill string, and in drill string can being turned on above annular packer after packing and annular space, so that the follow-up downhole annular blowout preventer for weighted mud kill-job operation, and use this down-hole annular packer to coordinate nearly drill bit check-valves (check valve) and early stage well kick overflow early warning system, can reach early to find, the well control guideline early processed, and more conventional well control operation is easier to make for.
Application No. 200910263415.7, publication No. is CN101748984A, date of publication is on 06 23rd, 2010, the Chinese invention patent application of the downhole blow-out preventer that the entitled down-hole being loaded in drill string automatically controls, disclose a kind of downhole blow-out preventer, although this preventer can solve blowout prevention during well kick to a certain extent, but its structure is complicated, assembly is more, install and change relative complex, correspondingly cause cost intensive, and this preventer is after carrying out blowout prevention, in the case of there is not pressure reduction, the prototype structure of preventer is recovered by spring, for reusing, if yet suffering from pressure reduction inside and outside preventer, then it is likely to spring force less than pressure reduction, preventer can not be made to recover to re-use；And spring is after being used for multiple times, being easily damaged, during preventer uses, spring breaking down, then preventer cannot recover, and this preventer can not take out, and results in blockage, it is impossible to again reuses, and brings inconvenience on the contrary follow-up operation.
Application No. 201010148874.3, publication No. is CN101812981A, date of publication is on 08 23rd, 2010, the Chinese invention patent application of entitled a kind of mechanical underground all-in-one blowout preventer, disclose a kind of underground all-in-one blowout preventer, this preventer can solve blowout prevention during well kick to a certain extent, but structure is complicated, and use and cut off pin and set, and this pin undertakes and connects upper and lower drilling tool in drilling process and transmit moment of torsion effect, but drilling process operating mode is severe, especially in drilling process, drillstring vibrations is serious, pin is likely to because bearing change shearing force for a long time and becoming moment of torsion effect and fatigue fracture, therefore the reliability of this preventer is the highest, as easy as rolling off a log because the accident of pin fracture and there is maloperation, and cause a series of down-hole accident.And needing to insulate when, need to add the biggest the pressure of the drill to lower drilling tool pin could be cut off, and the pressure of the drill that lower drill string part BHA can bear is certain, the process so cutting off pin is just easy to lower drilling tool to damage, and causes down-hole accident to occur.This application for a patent for invention there is also an issue, if the every operation that i.e. excluder ring is unprecedented is the most normal, but annular space packing is the most thorough, the stratum high-pressure oil gas being then easily caused in annular space pours in drilling rod through pod apertures is the most counter, thus the disabler of packing in causing following arrow type check-valves drilling rod, make well control become more and be difficult to operate.And the underground all-in-one blowout preventer of this patent application, pin is necessary for after cutting off stopping boring, trips out drill string and carry out all-in-one blowout preventer, with changing or keeping in repair, being used only once after i.e. going into the well, be unfavorable for that repetitive operation uses.
Application number 201110138301.7, application publication number CN102235158B, May 26 2011 Shen Qing Publication day, entitled a kind of downhole annular blowout preventer and the Chinese invention patent application of assembly technology thereof, operation principle is: when down-hole occurs overflow, transfer drill string, realize the setting of packing element, the hole simultaneously opened in top connection is docked with the hole on central tube, it is established that new circulation canal, is conducive to next step kill-job.On carry drill string drill string and can realize the deblocking of packing element.This design can realize reusing of preventer.But the operation of this preventer needs manually to transfer drill string, the technology of workman being had certain requirement, can there is certain danger during transferring drill string, automatization is more weak.
Summary of the invention
It is an object of the invention to: for the problem of above-mentioned existence, it is provided that a kind of simple in construction, use very convenient, the extremely easy device of operation；Using this annular blowout preventer to be able to ensure that drilling process is safe and reliable, motor can transmit high torque, it is ensured that being smoothed out of drilling process；This device is skillfully constructed, simple in construction, and reliability is high, has the highest feasibility, is suitable for promoting, can shunt in a well rapidly and unseal, effectively prevent well kick and blowout, and carry out preventer replacing without tripping out drill string, it is possible to reuse, reduces totle drilling cost.
The technical solution used in the present invention is as follows:
The downhole annular blowout preventer of the present invention, it includes communication module, control module, power plant module and performs module；Communication module includes top connection, fixing cylinder, signal sending and receiving apparatus；Control module includes filling sound wave controlled system, outer sleeve, central tube；Power plant module includes battery, motor；Perform module and include compression cylinder, packing element top connection, rubber tube, packing element lower contact, lower contact.
Owing to have employed said structure, motor drives squash type downhole annular blowout preventer realize the rotating of motor under the control of control module and power is transferred to the compression cylinder of power plant module, and compression cylinder compressing rubber cylinder or reversely dragging rubber tube are to realize sealing and the deblocking of preventer.
The downhole annular blowout preventer of the present invention, fixing cylinder, motor, compression cylinder and rubber tube are coated at central tube；Central tube uses with top connection and lower contact respectively threadeds, and the compression cylinder of power plant module uses the kind of drive of feed screw nut pair with motor.
Owing to have employed said structure, outer sleeve have employed with top connection threadeds the most easily, make to coordinate the tightst, the power attenuation that power delivery mode uses is less, the transmission the most direct feed screw nut pair kind of drive, the rotary motion of motor is changed into linear motion, promotes compression cylinder extruding packing element.Reach to insulate the purpose of annular space, and can realize quickly deblocking after kill-job completes.
The downhole annular blowout preventer of the present invention, described motor two ends, equipped with thrust bearing, have groove (19) simultaneously on outer sleeve, have projection (21) and groove (20) between described compression cylinder and outer sleeve；Two ring-shaped chambers inside fixing cylinder between described top connection and motor.
Owing to have employed said structure, motor is axially positioned by the thrust bearing (9) at motor two ends, and motor is carried out radially positioning by the groove (19) on outer sleeve and the projection on motor housing, prevents electric machine rotation；Have projection (21) and groove (20) between compression cylinder and outer sleeve to carry out compression cylinder radially positioning, prevent compression cylinder from the situation of radial rotating occurring compressing packing element when；Two ring-shaped chambers inside fixing cylinder between top connection and motor; built-in sound wave controlled system (3) and battery (5); fixing cylinder (4) side has threading hole; sound wave controlled system and battery are filled with fix in cylinder can well Protection control system and battery, it is to avoid affected by down-hole adverse circumstances.
The downhole annular blowout preventer of the present invention, packing element uses damascene structures to be connected with packing element top connection and packing element lower contact, it is connected with pin (12) between described compression cylinder with packing element top connection, between packing element lower contact (10) with lower contact (18), uses pin (17) to be connected.
Owing to have employed said structure, packing element can keep travel synchronization with compression cylinder, the when of particularly deblocking, packing element joint and compression cylinder are connected by pin and can drag glue bucket cylinder and unseal, it is to avoid the situation that packing element cannot recover, simple in construction, reliability height；Pin (17) is used to link together between packing element lower contact and lower contact, if motor deblocking was lost efficacy or other reasons cannot work, it is accomplished by emergent deblocking, drill string is carried on artificial, central tube will drive lower contact to move upward, thus will will be cut off with the lower contact generation shear action of rubber tube, pin herein in the lower contact of pin junction, and then reach the purpose of emergent deblocking.The ability making adaptation adverse circumstances is higher.
The downhole annular blowout preventer of the present invention, compression cylinder has on circulation port (11) and central tube and has circulation port (13).
Owing to have employed said structure, central tube and compression cylinder are set up circulation port (11) and (13), after electric machine rotation makes compression cylinder compressing rubber cylinder form annular space, circulation port on central tube and compression cylinder aligns just, thus form new circulation canal, ready for follow-up kill-job.
The downhole annular blowout preventer of the present invention, uses the mode of sound wave communication, and communication module mainly includes ground control centre, well head sound wave communication pipe nipple, relay station, downhole blow-out preventer sound wave transceiver module；Wherein ground control centre includes radio receiver, transmitting set；Well head sound wave communication pipe nipple includes sound-electric transducer, electro-acoustic transducer；Downhole blow-out preventer sound wave transceiver module includes sound-electric transducer, electro-acoustic converter.
nullOwing to have employed above-mentioned communication modes，By the transmitting set (a-2) of ground control centre, control command is transmitted to well head sound wave communication pipe nipple，Acoustic signals is converted electrical signals to by the electro-acoustic transducer (b-2) in sound wave communication pipe nipple，Downhole blow-out preventer sound wave transceiver module is transmitted a signal to again by relay station,By the sound-electric transducer (d-1) in preventer sound wave transceiver module, acoustic signals is converted to the signal of telecommunication again，Realize the control to motor，In like manner，The working condition of motor can be converted electrical signals to acoustic signals by the electro-acoustic converter in preventer sound wave transceiver module，Transmitted to well head sound wave communication pipe nipple by relay station，By the sound-electric transducer in sound wave communication pipe nipple, acoustic signals is converted to the signal of telecommunication，The radio receiver (a-1) transmitted again to ground control centre (a) receives signal.Again data are reached computer to process.
The present invention compared with prior art, (1) simple in construction, operate the simplest；(2) this annular blowout preventer is used to be able to ensure that drilling process is safe and reliable, it is possible to transmission high torque, it is ensured that being smoothed out of drilling process；(3) can shunt in a well rapidly and unseal, effectively prevent well kick and blowout, and carry out preventer replacing without tripping out drill string, it is possible to reuse, reduce totle drilling cost, there is the highest feasibility, be suitable for promoting.
Accompanying drawing explanation
Fig. 1 is that the motor of the present invention drives squash type downhole annular blowout preventer structural assembly schematic diagram.
Fig. 2 is that the motor of the present invention drives the sectional view at squash type downhole annular blowout preventer A-A.
Fig. 3 is that the motor of the present invention drives the sectional view at squash type downhole annular blowout preventer B-B-.
Fig. 4 is that the motor of the present invention drives squash type downhole annular blowout preventer sound wave communication flow chart.
Labelling in figure: 1-top connection, 2-signal sending and receiving apparatus, 3-sound wave controlled system, 4-fix cylinder, 5-battery, 6-outer sleeve, 7-central tube, 8-motor, 9-thrust bearing, 10-compression cylinder, 11-circulation port 1,12-pin, 13-circulation port 2,14-packing element top connection, 15-packing element, 16-packing element lower contact, 17-pin, 18-lower contact.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Specific embodiment 1:
As shown in Figure 1, a kind of motor drives squash type downhole annular blowout preventer, it includes top connection (1), fixing cylinder (4), outer sleeve (6), central tube (7), motor (8), compression cylinder (10), packing element top connection (8), rubber tube (15), packing element lower contact (10) and lower contact (18), and described fixing cylinder (4), motor (8), compression cylinder (10) and rubber tube (15) are coated at central tube (7)；Central tube (7) uses threaded with top connection (1) and lower contact (18) respectively, compression cylinder (10) can pass through compression cylinder (10) compressing rubber cylinder (15) under the driving of motor (8) and realize sealing blowout prevention, and can reversely drag rubber tube (15) and realize deblocking, rubber tube (15) is alignd by the circulation port (11) of compression cylinder while compression seal (10) and the circulation port (13) of central tube (7), form new circulation canal, ready for follow-up kill-job；Motor (8) two ends, equipped with thrust bearing (9), the most also have groove (19) on outer sleeve (6), are respectively used to radial and axial location；Projection (21) and groove (20) is had between compression cylinder (10) and outer sleeve (6), as the guide rail of compression cylinder (10) compression packing element (9), and carry out compression cylinder radially positioning；Two ring-shaped chambers of fixing cylinder (4) the inside between described top connection (1) and motor (8) are respectively used to fill sound wave controlled system (3) and battery (5), fixing cylinder (4) side has threading hole, described packing element (9) uses damascene structures to be connected with packing element top connection (8) and packing element lower contact (10), it is connected with pin (12) between described compression cylinder (10) with packing element top connection (8), pin (17) is used to be connected between packing element lower contact (10) with lower contact (18), effect due to pin, packing element (9) can keep travel synchronization with compression cylinder (10), the when of particularly deblocking, packing element joint and compression cylinder are connected by pin can drag the deblocking of glue bucket cylinder, avoid the situation that packing element cannot recover, simple in construction, reliability is high；Pin (17) is used to link together between packing element lower contact and lower contact, if motor deblocking was lost efficacy or other reasons cannot work, it is accomplished by emergent deblocking, drill string is carried on artificial, central tube will drive lower contact to move upward, thus will have an effect with the lower contact of rubber tube in the lower contact of pin junction, will be cut off when power reaches timing pin herein, and then reached the purpose of emergent deblocking.
Specific embodiment 2:
Device based on embodiment 1, motor driving squash type downhole annular blowout preventer blowout prevention method is:
1. when finding overflow, stratum highly pressurised liquid flows up in drill bit enters drill string, finds overflow, and after surface shut-in, stratum highly pressurised liquid flows up in entering drill string by drill bit, and in making the down-hole near drill bit, jet-preventing tool is closed, and blocks drill string internal channel.Meanwhile, the stratum high-pressure fluid in mineshaft annulus passes through downhole blow-out preventer lower contact, now needs to take blowout prevention procedure.
2. by the transmitting set (a-2) of ground control centre (a), control command is transmitted to well head sound wave communication pipe nipple (b), acoustic signals is converted electrical signals to by the electro-acoustic transducer (b-2) in sound wave communication pipe nipple (b), transmit a signal to downhole blow-out preventer sound wave transceiver module (d) by relay station (c) again, then by the sound-electric transducer (d-1) in preventer sound wave transceiver module (d), acoustic signals is converted to the signal of telecommunication.
3. motor is under the control of the signal of telecommunication, compression cylinder extruding packing element is promoted to realize sealing by feed screw nut pair, the circulation port (11) of compression cylinder and the circulation port (13) of central tube align simultaneously, form new circulation canal, ready for follow-up kill-job.
4. each item data in down-hole also can be converted electrical signals to acoustic signals by the electro-acoustic converter (d-2) in preventer sound wave transceiver module (d) simultaneously, transmitted to well head sound wave communication pipe nipple (b) by relay station (c), by the sound-electric transducer (b-1) in sound wave communication pipe nipple (b), acoustic signals is converted to the signal of telecommunication, then the radio receiver (a-1) transmitted to ground control centre (a) receives signal.Again data are reached computer to process.
5. need deblocking time, repeat step 1,2,3, motor reversely drags packing element, make packing element recover deformation, can realize deblocking
6. being accomplished by emergent deblocking, carry drill string on artificial, central tube will drive lower contact to move upward, thus will will be cut off with the lower contact generation shear action of rubber tube, pin herein in the lower contact of pin junction, and then reaches the purpose of emergent deblocking.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (8)
1. a motor drives squash type downhole annular blowout preventer, it is characterised in that: it includes communication module (I), control module (II), power plant module (III) and performs module (IV):
Communication module (I) includes top connection (1), signal sending and receiving apparatus (2), fixing cylinder (4)；Control module (II) includes filling sound wave controlled system (3), outer sleeve (6), central tube (7)；Power plant module (III) includes battery (5), motor (8)；Perform module (IV) and include compression cylinder (10), packing element top connection (14), rubber tube (15), packing element lower contact (16), lower contact (17)；Described motor drives squash type downhole annular blowout preventer to use the mode of sound wave communication, realize radio communication, control module can realize the bi-directional of signal equipped with electro-acoustic transducer (d-1), sound-electric transducer (b-1), realized the long-range control to motor by aboveground to down-hole transmission control command, and the relevant parameter that the working condition of downhole blow-out preventer and motor (8) work can also be by the control centre of acoustic signals transmission systems communicate to ground.
2. motor as claimed in claim 1 drives squash type downhole annular blowout preventer, it is characterised in that: described fixing cylinder (4), motor (8), compression cylinder (10) and rubber tube (15) are coated at central tube (7)；Described central tube (7) uses threaded with top connection (1) and lower contact (18) respectively, and the compression cylinder (10) of described power plant module (III) uses the kind of drive of feed screw nut pair with motor (8).
3. motor as claimed in claim 1 drives squash type downhole annular blowout preventer, it is characterized in that: described motor (8) two ends are equipped with thrust bearing (9), have groove (19) simultaneously on outer sleeve (6), between described compression cylinder (10) and outer sleeve (6), have projection (21) and groove (20).
4. motor as claimed in claim 1 drives squash type downhole annular blowout preventer, it is characterized in that: two ring-shaped chambers of fixing cylinder (4) the inside between described top connection (1) and motor (8), inside having sound wave control system (3) and battery (5), fixing cylinder (4) side has threading hole.
5. motor as claimed in claim 1 drives squash type downhole annular blowout preventer, it is characterized in that: described packing element (9) uses damascene structures to be connected with packing element top connection (8) and packing element lower contact (10), it is connected with pin (12) between described compression cylinder (10) with packing element top connection (8), between packing element lower contact (10) with lower contact (18), uses pin (17) to be connected.
6. motor as claimed in claim 1 drives squash type downhole annular blowout preventer, it is characterised in that: described compression cylinder (10) has on circulation port (11) and central tube (7) and has circulation port (13).
7. motor as claimed in claim 1 drives the communicating control method of squash type downhole annular blowout preventer, it is characterized in that: using the mode of sound wave communication, communication module mainly includes ground control centre (a), well head sound wave communication pipe nipple (b), relay station (c), downhole blow-out preventer sound wave transceiver module (d)；Wherein ground control centre (a) includes radio receiver (a-1), transmitting set (a-2)；Well head sound wave communication pipe nipple (b) includes sound-electric transducer (b-1), electro-acoustic transducer (b-2)；Downhole blow-out preventer sound wave transceiver module (d) includes sound-electric transducer (d-1), electro-acoustic converter (d-2).
null8. motor as claimed in claim 7 drives the communicating control method of squash type downhole annular blowout preventer，It is characterized in that: by the transmitting set (a-2) of ground control centre (a), control command is transmitted to well head sound wave communication pipe nipple (b)，Acoustic signals is converted electrical signals to by the electro-acoustic transducer (b-2) in sound wave communication pipe nipple (b)，Downhole blow-out preventer sound wave transceiver module (d) is transmitted a signal to again by relay station (c),By the sound-electric transducer (d-1) in preventer sound wave transceiver module (d), acoustic signals is converted to the signal of telecommunication again，Realize the control to motor (8)，In like manner，The working condition of motor (8) can be converted electrical signals to acoustic signals by the electro-acoustic converter (d-2) in preventer sound wave transceiver module (d)，Transmitted to well head sound wave communication pipe nipple (b) by relay station (c)，By the sound-electric transducer (b-1) in sound wave communication pipe nipple (b), acoustic signals is converted to the signal of telecommunication，The radio receiver (a-1) transmitted again to ground control centre (a) receives signal，Again data are reached computer to process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293617.6A CN105822251B (en) | 2016-05-06 | 2016-05-06 | Motor-driven extrusion type underground annular blowout preventer and communication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293617.6A CN105822251B (en) | 2016-05-06 | 2016-05-06 | Motor-driven extrusion type underground annular blowout preventer and communication method thereof |
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| Publication Number | Publication Date |
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| CN105822251A true CN105822251A (en) | 2016-08-03 |
| CN105822251B CN105822251B (en) | 2021-07-30 |
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| CN (1) | CN105822251B (en) |
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| CN108877459A (en) * | 2018-06-20 | 2018-11-23 | 中国石油集团渤海钻探工程有限公司 | A kind of oil drilling well-control blowout prevention device group teaching simulating device |
| CN109267982A (en) * | 2017-07-17 | 2019-01-25 | 中石化石油工程技术服务有限公司 | A kind of staged fracturing and control water completion method and tubing string, underground sliding bush switching system |
| CN109267962A (en) * | 2018-09-29 | 2019-01-25 | 西南石油大学 | A kind of motor driven compression rubber downhole blow-out preventer |
| CN109281635A (en) * | 2018-09-29 | 2019-01-29 | 西南石油大学 | A kind of explosion excitation formula downhole annular blowout preventer |
| CN109798085A (en) * | 2019-03-18 | 2019-05-24 | 西南石油大学 | A kind of normally closed type unidirectionally injects downhole blow-out preventer |
| CN112305622A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Resistivity imaging device |
| CN113236176A (en) * | 2021-06-22 | 2021-08-10 | 新疆华隆油田科技股份有限公司 | Electric push rod type packer |
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| CN109267982A (en) * | 2017-07-17 | 2019-01-25 | 中石化石油工程技术服务有限公司 | A kind of staged fracturing and control water completion method and tubing string, underground sliding bush switching system |
| CN108877459A (en) * | 2018-06-20 | 2018-11-23 | 中国石油集团渤海钻探工程有限公司 | A kind of oil drilling well-control blowout prevention device group teaching simulating device |
| CN109267962A (en) * | 2018-09-29 | 2019-01-25 | 西南石油大学 | A kind of motor driven compression rubber downhole blow-out preventer |
| CN109281635A (en) * | 2018-09-29 | 2019-01-29 | 西南石油大学 | A kind of explosion excitation formula downhole annular blowout preventer |
| CN109267962B (en) * | 2018-09-29 | 2024-04-09 | 西南石油大学 | Motor-driven compression rubber cylinder type downhole blowout preventer |
| CN109798085A (en) * | 2019-03-18 | 2019-05-24 | 西南石油大学 | A kind of normally closed type unidirectionally injects downhole blow-out preventer |
| CN112305622A (en) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | Resistivity imaging device |
| CN112305622B (en) * | 2019-08-02 | 2024-05-24 | 中国石油化工股份有限公司 | Resistivity imaging device |
| CN113236176A (en) * | 2021-06-22 | 2021-08-10 | 新疆华隆油田科技股份有限公司 | Electric push rod type packer |
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