CN109057761A - A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging - Google Patents
A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging Download PDFInfo
- Publication number
- CN109057761A CN109057761A CN201810919255.6A CN201810919255A CN109057761A CN 109057761 A CN109057761 A CN 109057761A CN 201810919255 A CN201810919255 A CN 201810919255A CN 109057761 A CN109057761 A CN 109057761A
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- tapered sleeve
- anchoring
- natural gas
- driving mechanism
- automatically controlled
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- 239000002343 natural gas well Substances 0.000 title claims abstract description 26
- 238000004873 anchoring Methods 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000003032 molecular docking Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 24
- 239000003345 natural gas Substances 0.000 abstract description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000004576 sand Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
Landscapes
- 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)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention belongs to Oilfield Natural Gas Plant well production technique fields, more particularly to the natural gas well underground throttle device of a kind of automatically controlled dispensing and salvaging, including docking telescopic head, pulling fitting body, power module, electric-control system, driving mechanism, outer housing, anchoring slips, anchoring tapered sleeve, power transmission spring, cartridge, set tapered sleeve, mandrel, air inlet and strainer, the outer diameter of the docking telescopic head and the inner hole of pulling fitting body；The pulling fitting body is connect by screw thread with outer housing；The power module, electric-control system and driving mechanism are fixedly mounted in outer housing；One end of the anchoring slips is connected on outer housing；The other end of anchoring slips is set on anchoring tapered sleeve；The tapered sleeve that sets is set on anchoring tapered sleeve.In the use of the present invention, natural gas makes full use of ground temperature to heat after reducing pressure by regulating flow of the present invention in pit shaft, change the formation condition of hydrate, reduce methanol injection rate, reduces the pressure that wellhead equipment and surface line are born.
Description
Technical field
The invention belongs to Oilfield Natural Gas Plant well production technique fields, are related to natural gas well cylinder reducing pressure by regulating flow, underground sealing is determined
The technologies such as position, system action control and underground high temperature power supply, more particularly to the natural gas well well of a kind of automatically controlled dispensing and salvaging
Lower flow controller.
Background technique
In recent years, with the deterioration of ecological environment, the scarcity of natural resources, natural gas is opened as a kind of clean energy resource
It adopts demand to increase increasingly, but because strata pressure is larger in recovery process, gas pressure is excessively high in pit shaft, needs before extraction to well
High-pressure natural gas throttles in cylinder, to reduce ground installation operating pressure, reduce cost of winning.
Traditional surface throttling technique needs to improve air-flow temperature to heated by natural gas with ground heating and heat-insulating device before throttling
Degree, in order to avoid form Hydrate Plugging pipeline.And Downhole Choking Technology is that setting throttling set realizes natural gas decompression in pit shaft,
And make full use of formation temperature to heat it after being depressured, so that the gas flow temperature after well head throttling substantially returns to the preceding temperature that throttles
Degree, effectively inhibits gas hydrate synthesis.
Traditional natural gas well flow controller uses Purely mechanical pulling, using slips self weight and tube wall frictional force when dispensing,
Realize that anchoring sets movement in such a way that differential lifts.Such form is on the one hand irregular or when gradient is larger in the borehole wall, easily
There is anchoring failure, the dispensing of another aspect differential is complicated for operation, and it is higher to operator's skill requirement, it is low to launch success rate；It beats
Slip mechanism is lifted when fishing, realizes unlock and deblocking.Such form slips direction of motion is identical as the underground direction Ji Sha, between slips
Easily there is sand card phenomenon, causes to salvage and fail.
Natural gas well underground throttle device one kind that this patent is related to automatically controlled dispensing and salvaged, pulling are acted by in-built electrical
It controls driving mechanism to realize, is not necessarily to artificial complex operations.Anchoring, unlocking motion are not influenced by underground working, can effectively solve tube wall
The reliable pulling problem of flow controller under the bad working environments such as serious that fouling is serious, pipeline is irregular, pit shaft gradient is big, underground shakes out.
Summary of the invention
The object of the present invention is to provide a kind of automatically controlled dispensing and the natural gas well underground throttle device salvaged, natural gas in pit shaft
After reducing pressure by regulating flow of the present invention, ground temperature is made full use of to heat, change the formation condition of hydrate, reduce methanol injection rate, dropped
The pressure that low wellhead equipment and surface line are born, improves stoping safety；The fluid-carrying capability of air-flow is increased, well is reduced
The hydrops amount of cylinder and surface line；It avoids stratum excited, extends the gas well service life, stabilize gas well liquid loading ability.
The purpose of the present invention is achieved through the following technical solutions:
A kind of natural gas well underground throttle device of automatically controlled dispensing and salvaging, including docking telescopic head, pulling fitting body, power supply
Module, driving mechanism, outer housing, anchoring slips, anchoring tapered sleeve, power transmission spring, cartridge, sets tapered sleeve, core at electric-control system
Axis, air inlet and strainer, the outer diameter of the docking telescopic head and the inner hole of pulling fitting body；The pulling fitting body passes through
Screw thread is connect with outer housing；The power module, electric-control system and driving mechanism are fixedly mounted in outer housing；The anchoring card
Watt one end be connected on outer housing；The other end of anchoring slips is set on anchoring tapered sleeve；The tapered sleeve that sets is set in anchor
Determine on tapered sleeve；The cartridge is set in anchoring tapered sleeve and sets on tapered sleeve；One end of the driving mechanism connecting mandrel；Institute
Mandrel is stated from top to bottom to sequentially pass through outer housing, be anchored tapered sleeve and set tapered sleeve；The other end of mandrel passes through pin and air inlet
Connection；The air inlet is contacted with tapered sleeve is set；The power transmission spring is mounted on mandrel, one end end face of power transmission spring and seat
The contact of tapered sleeve inner hole is sealed, the other end face of power transmission spring is contacted with the inner hole of anchoring tapered sleeve；The strainer connects with tapered sleeve is set
It connects；The inside of strainer is arranged in the air inlet；Connected between the power module, electric-control system and driving mechanism by conducting wire
It connects, the work of electric control system controls driving mechanism.
The driving mechanism includes underground high temperature DC speed-reducing, ball-screw and motor cabinet, and the underground high temperature is straight
Stream decelerating motor is fixedly connected in outer housing by motor cabinet；The output shaft of the underground high temperature DC speed-reducing passes through connection
The screw rod of axis device connection ball-screw；The mandrel is connected by nut seat with the nut of ball-screw.
When the mandrel moves up, air inlet is moved up, and is pushed when air inlet moves up and is set tapered sleeve and move up, when setting tapered sleeve and moving up
Compression seal packing element simultaneously pushes anchoring tapered sleeve distending anchoring slips.
The strainer is connect by screw thread with tapered sleeve is set.
The power module is high-temperature battery group, is combined by the series and parallel of battery, respectively electric-control system and driving machine
The power supply of structure motor.
The length of the pulling fitting body is no less than 2.5 meters.
Of length no more than 1.5 meters of the outer housing.
Beneficial effects of the present invention: natural gas makes full use of ground temperature to heat after reducing pressure by regulating flow of the present invention in pit shaft, changes
The formation condition of hydrate reduces methanol injection rate, reduces the pressure that wellhead equipment and surface line are born, improves out
Adopt safety；The fluid-carrying capability of air-flow is increased, the hydrops amount of pit shaft and surface line is reduced；It avoids stratum excited, extends
The gas well service life stabilizes gas well liquid loading ability.
Natural gas well underground throttle device one kind of the invention automatically controlled dispensing and salvaged is completed underground by steel wire for logging and is thrown
Operation is fished out, (deblocking), anchoring (unlock) movement is set by the realization of built-in electric control system during pulling, is guaranteeing underground work
While period effectively throttles, the reliability of dispensing and salvaging is effectively guaranteed in automatically controlled driving method.
Natural gas well underground throttle device one kind of the invention automatically controlled dispensing and salvaged, pulling process do not change existing pipe
Rod structure has been not necessarily to well operations, is only transferred by ground steel wire for logging Portable device to pit shaft target depth, this hair can be completed
Bright installation is fixed.
Natural gas well underground throttle device one kind of the invention automatically controlled dispensing and salvaged sets (deblocking), anchoring (solution
Lock) by the completion of built-in electric-control system, driving mechanism and executing agency, whole process is not necessarily to manual intervention for movement.
Of the invention natural gas well underground throttle device one kind automatically controlled dispensing and salvaged, based on underground working targetedly into
The design of row structure, can effectively ensure that flow controller pulling success rate: caused by anchoring failure, sand caused by avoiding pit shaft gradient big bury
The problems such as salvaging unlock failure caused by throwing docking failure, sand fouling.
The safeguard way of present invention progress underground pulling reliability:
1. use automatically controlled drive form, the anchoring tapered sleeve of slips and cartridge is anchored as driving part for swelling,
It is unsealed, unlocking motion direction and salvaging direction of pull are on the contrary, avoid caused by the accumulation of underground long-term work silt impurity, fouling
Unlock failure.
2. pulling fitting body relative to outer housing effective length be not less than 2.5m, make fishing joint position of the present invention be higher than because
Sand height caused by underground long-term work silting avoids sand from burying and salvages failure caused by phenomenon.
3. the power module inside the present invention is controlled using trigger-type on-off, only when pulling operation needs mechanical action,
It is triggered by docking and realizes power supply, so that system power is insufficient when avoiding salvaging caused by meaningless energy consumption during underground work, protected
The underground effective time is demonstrate,proved.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the partial structural diagram that state is set in pulling work in underground of the present invention；
Fig. 3 is the partial structural diagram of unset state in pulling work in underground of the present invention；
Fig. 4 is the circuit diagram of single-chip microcontroller in electric-control system inside the present invention；
Fig. 5 is the circuit diagram of control circuit in electric-control system inside the present invention；
Fig. 6 is the circuit diagram of wireless module in electric-control system inside the present invention；
Fig. 7 is the circuit diagram of power module in electric-control system inside the present invention.
In figure: docking telescopic head 1；Pulling fitting body 2；Power module 3；Electric-control system 4；Driving mechanism 5；Outer housing 6；Anchor
Determine slips 7；It is anchored tapered sleeve 8；Power transmission spring 9；Cartridge 10；Set tapered sleeve 11；Mandrel 12；Air inlet 13；Strainer 14.
Specific embodiment
Invention is further described in detail by 1-7 with reference to the accompanying drawing.
Specific embodiment:
As shown in figs. 1-7, a kind of automatically controlled dispensing and the natural gas well underground throttle device salvaged, including docking telescopic head 1, throwing
Fish out fitting body 2, power module 3, electric-control system 4, driving mechanism 5, outer housing 6, anchoring slips 7, anchoring tapered sleeve 8, power transmission spring
9, cartridge 10, set tapered sleeve 11, mandrel 12, air inlet 13 and strainer 14, the outer diameter of the docking telescopic head 1 connects with pulling
The inner hole of head body 2, can do reciprocal telescopic movement；The pulling fitting body 2 is connect by screw thread with outer housing 6；The electricity
Source module 3, electric-control system 4 and driving mechanism 5 are fixedly mounted in outer housing 6；One end of the anchoring slips 7 is connected to shell
On body 6；The other end of the anchoring slips 7 is set on anchoring tapered sleeve 8, is moved back and forth by anchoring tapered sleeve 8 and is realized anchoring card
Watts 7 folding；The tapered sleeve 11 that sets is set on anchoring tapered sleeve 8；The cartridge 10 is set in anchoring tapered sleeve 8 and sets
On tapered sleeve 11, distending and the recovery for realizing cartridge 10 are moved back and forth by anchoring tapered sleeve 8；The driving mechanism 5 connects core
One end of axis 12, mandrel 12 are moved back and forth with driving mechanism 5；The mandrel 12 from top to bottom sequentially passes through outer housing 6, anchoring cone
It covers 8 and sets tapered sleeve 11；The other end of the mandrel 12 is connect by pin with air inlet 13, when stating mandrel 12 and moving up, air inlet
Mouth 13 is servo-actuated, moves up compression seal packing element 10 to push and set tapered sleeve 11 and pushes anchoring 8 distending of tapered sleeve anchoring slips 7；Institute
It states air inlet 13 and is contacted with tapered sleeve 11 is set；The power transmission spring 9 is mounted on mandrel 12, one end end face of power transmission spring 9 with
The contact of 11 inner hole of tapered sleeve is set, the other end face of power transmission spring 9 is contacted with the inner hole of anchoring tapered sleeve 8, the end face of power transmission spring 9
With set 11 inner hole plane contact of tapered sleeve, when seal taper sleeve 11 moves up, compress power transmission spring 9, the pressure of power transmission spring 9 passed
Pass anchoring tapered sleeve 8；The strainer 14 is connect with tapered sleeve 11 is set；The inside of strainer 14 is arranged in the air inlet 13；It is described
It is connected between power module 3, electric-control system 4 and driving mechanism 5 by conducting wire, electric-control system 4 controls the work of driving mechanism 5.
Natural gas well underground throttle device one kind of the invention automatically controlled dispensing and salvaged, it is when in use, automatically controlled to launch and beat
The natural gas well underground throttle device of fishing is by ground preset instructions, and realization sets after going into the well, is anchored automatic control, by built-in
Power module 3 is powered, and driving mechanism 5 provides axial tension, drives air inlet 13 to move up by mandrel 12 connected to it, thus
Promotion sets tapered sleeve 11 and anchoring tapered sleeve 8 moves up distending anchoring slips 7 and cartridge 10, realizes anchoring and sets, above mentions steel
Silk cuts connecting pin, separates wire joint with the present invention, docks telescopic head 1 and affranchises state, power supply mould of the invention
3 open circuit of block, system enter standby mode, no longer generation energy consumption, complete underground of the invention and launch operation.
The present invention during underground work, in pit shaft natural gas via strainer 14 filter large granular impurity after enter throttle into
Port 13 is discharged by gas outlet in the middle part of flow controller by flowing hole in mandrel 12, completes reducing pressure by regulating flow work, heat up via stratum
After produce well.
After the completion of the underground work period of the present invention, when being salvaged, salvaging instruction is preset with by steel wire carrying
Connector docked with fishing joint body 2.After docking, docking telescopic head 1 will be compressed, and power module 3 becomes channel status, this hair
The electric-control system of bright inside activates, and mode receives the control instruction of fishing joint transmission by wireless communication, and driving mechanism 5 pushes
Mandrel 12 moves down, and releases anchoring tapered sleeve 8 and sets the swelling state of tapered sleeve 11, thus realize deblocking and unlock of the invention, with
Shaft in wall is detached from, and salvages well.
The driving mechanism 5 includes underground high temperature DC speed-reducing, ball-screw and motor cabinet, and the underground high temperature is straight
Stream decelerating motor is fixedly connected in outer housing 6 by motor cabinet；The output shaft of the underground high temperature DC speed-reducing passes through
The screw rod of shaft coupling connection ball-screw；The mandrel 12 is connected by nut seat with the nut of ball-screw.The driving machine
When in use, after underground high temperature DC speed-reducing is connected to power module 3 and opens, underground high temperature DC speed-reducing can for structure 5
To be pumped by ball-screw band moving mandrel 12.
When the mandrel 12 moves up, air inlet 13 is moved up, and promotion sets tapered sleeve 11 and moves up when air inlet 13 moves up, and sets cone
Set 11 compression seal packing element 10 and pushes anchoring 8 distending of tapered sleeve anchoring slips 7 when moving up.
The strainer 14 is connect by screw thread with tapered sleeve 11 is set.
The power module 3 is high-temperature battery group, is combined by the series and parallel of battery, respectively electric-control system and driving
Mechanism motor power supply.
The length of the pulling fitting body 2 is no less than 2.5 meters.
Of length no more than 1.5 meters of the outer housing 6.
The operation principle of the present invention is that: when in use, automatically controlled dispensing passes through ground with the natural gas well underground throttle device salvaged
Face preset instructions, realization set after going into the well, are anchored automatic control, powered by built-in power, driving mechanism 5 provides axial drawing
Power drives air inlet 13 to move up by mandrel 12 connected to it, moves up distending to push to set tapered sleeve 11 and be anchored tapered sleeve 8
It is anchored slips 7 and cartridge 10, realize anchoring and is set, steel wire shearing connecting pin is above mentioned, makes wire joint and the present invention
Separation, docking telescopic head 1 affranchise state, and 3 open circuit of power module of the invention, system enters standby mode, no longer generates
Energy consumption completes underground of the invention and launches operation.
The present invention during underground work, in pit shaft natural gas via strainer 14 filter large granular impurity after enter throttle into
Port 13 is discharged by gas outlet in the middle part of flow controller by flowing hole in mandrel 12, completes reducing pressure by regulating flow work, heat up via stratum
After produce well；After the completion of the underground work period of the present invention, when being salvaged, salvaging is preset with by steel wire carrying and is referred to
The connector of order is docked with fishing joint body 2.After docking, docking telescopic head 1 will be compressed, and power module 3 becomes channel status, this
Electric-control system activation inside invention, mode receives the control instruction of fishing joint transmission by wireless communication, and driving mechanism 5 pushes away
Moving mandrel 12 moves down, and releases anchoring tapered sleeve 8 and sets the swelling state of tapered sleeve 11, thus realize deblocking and unlock of the invention,
It is detached from shaft in wall, salvages well.
A kind of put-on method of automatically controlled dispensing and the natural gas well underground throttle device salvaged:
1, driver starting time (such as: 1h after going into the well) is preset on ground, and steel wire is by launching connector for underground of the invention
Automatically controlled movable flow controller is transferred to target depth；
2, it waits and reaches preset time, driving mechanism 5 is moved up with moving mandrel 12, sets tapered sleeve 11 and anchoring cone to push
Set 8 moves up distending anchoring slips 7 and cartridge 10, realizes anchoring and sets；
3, steel wire is above mentioned, when reaching corresponding pulling force, cuts and launches connecting pin between connector and the present invention, complete the present invention
Underground launch.Power module 3 when launching connector separation inside the cutting present invention, electric-control system enters dormant state, this hair
The bright working condition that enters realizes natural gas reducing pressure by regulating flow.
A kind of Refloatation method of automatically controlled dispensing and the natural gas well underground throttle device salvaged:
1, steel wire connection fishing head is docked with the present invention, the default deblocking instruction in fishing joint ground；When docking, in the present invention
The power module 3 in portion is activated, and wireless communication system executes respective action after receiving control instruction；
2, driving mechanism 5 is moved down with moving mandrel 12, is released anchoring tapered sleeve 8 and is set the swelling state of tapered sleeve 11, completes close
The deblocking of sealing cylinder 10 is unlocked with anchoring slips 7；To realize deblocking and unlock of the invention, it is detached from, salvages with shaft in wall
Well.
3, steel wire is above mentioned, fishing of the invention is completed.
The principle of internal electric-control system in the present invention: ground default control instructs when going into the well, and single-chip microcontroller is written, and passes through timing
Device control, after reaching timer preset time, single-chip microcontroller executes preset instructions, and single-chip microcontroller controls the dynamic of motor by control circuit
Make.When playing well, is docked by the preset instructions that wireless communication module built in fishing joint carries with flow controller, pass through wireless signal
Instruction is passed into flow controller single-chip microcontroller, single-chip microcontroller controls the movement of motor by control circuit.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made within the essential scope of the present invention also belong to guarantor of the invention
Protect range.
Claims (7)
1. a kind of automatically controlled dispensing and the natural gas well underground throttle device salvaged, including docking telescopic head (1), pulling fitting body (2),
Power module (3), electric-control system (4), driving mechanism (5), outer housing (6), anchoring slips (7), anchoring tapered sleeve (8), power transmission bullet
Spring (9), cartridge (10) set tapered sleeve (11), mandrel (12), air inlet (13) and strainer (14), it is characterised in that: described
Dock the outer diameter of telescopic head (1) and the inner hole of pulling fitting body (2)；The pulling fitting body (2) passes through screw thread and shell
Body (6) connection；The power module (3), electric-control system (4) and driving mechanism (5) are fixedly mounted in outer housing (6)；It is described
One end of anchoring slips (7) is connected on outer housing (6)；The other end of anchoring slips (7) is set in anchoring tapered sleeve (8)
On；The tapered sleeve (11) that sets is set in anchoring tapered sleeve (8)；The cartridge (10) is set in anchoring tapered sleeve (8) and sits
It seals on tapered sleeve (11)；One end of driving mechanism (5) connecting mandrel (12)；The mandrel (12) from top to bottom sequentially passes through outer
Shell (6) is anchored tapered sleeve (8) and sets tapered sleeve (11)；The other end of the mandrel (12) is connected by pin and air inlet (13)
It connects；The air inlet (13) contacts with tapered sleeve (11) is set；The power transmission spring (9) is mounted on mandrel (12), power transmission spring
(9) one end end face is contacted with tapered sleeve (11) inner hole is set, and the other end face of power transmission spring (9) is interior with anchoring tapered sleeve (8)
Hole contact；The strainer (14) connect with tapered sleeve (11) is set；Inside of air inlet (13) setting in strainer (14)；It is described
It is connect between power module (3), electric-control system (4) and driving mechanism (5) by conducting wire, electric-control system (4) controls driving mechanism
(5) work.
2. the natural gas well underground throttle device according to claim 1 one kind automatically controlled dispensing and salvaged, it is characterised in that: institute
Stating driving mechanism (5) includes underground high temperature DC speed-reducing, ball-screw and motor cabinet, and the underground high temperature direct current slows down electric
Machine is fixedly connected in outer housing (6) by motor cabinet；The output shaft of the underground high temperature DC speed-reducing passes through shaft coupling
Connect the screw rod of ball-screw；The mandrel (12) is connected by nut seat with the nut of ball-screw.
3. the natural gas well underground throttle device according to claim 2 one kind automatically controlled dispensing and salvaged, it is characterised in that: institute
When stating mandrel (12) and moving up, air inlet (13) is moved up, and is pushed setting tapered sleeve (11) and move up when air inlet (13) moves up, is set tapered sleeve
(11) when moving up compression seal packing element (10) and push anchoring tapered sleeve (8) distending anchoring slips (7).
4. the natural gas well underground throttle device according to claim 1 one kind automatically controlled dispensing and salvaged, it is characterised in that: institute
Strainer (14) are stated to connect by screw thread with tapered sleeve (11) is set.
5. the natural gas well underground throttle device according to claim 1 one kind automatically controlled dispensing and salvaged, it is characterised in that: institute
Stating power module (3) is high-temperature battery group, is combined by the series and parallel of battery, respectively electric-control system and driving mechanism motor
Power supply.
6. the natural gas well underground throttle device according to claim 1 one kind automatically controlled dispensing and salvaged, it is characterised in that: institute
The length for stating pulling fitting body (2) is no less than 2.5 meters.
7. the natural gas well underground throttle device according to claim 1 one kind automatically controlled dispensing and salvaged, it is characterised in that: institute
Of length no more than 1.5 meters for stating outer housing (6).
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| CN201810919255.6A CN109057761B (en) | 2018-08-14 | 2018-08-14 | Natural gas well underground throttle for electric control throwing and fishing |
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| CN201810919255.6A CN109057761B (en) | 2018-08-14 | 2018-08-14 | Natural gas well underground throttle for electric control throwing and fishing |
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| CN109057761A true CN109057761A (en) | 2018-12-21 |
| CN109057761B CN109057761B (en) | 2020-09-29 |
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| CN110513064A (en) * | 2019-10-12 | 2019-11-29 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Movable anchoring device and anchorage method in a kind of oil pipe |
| CN112145112A (en) * | 2020-11-10 | 2020-12-29 | 西南石油大学 | Electric-drive labor-throwing type milling and fishing combined tool |
| CN112302583A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Restrictor and outer working barrel |
| CN113294128A (en) * | 2021-06-23 | 2021-08-24 | 中国石油天然气股份有限公司长庆油田分公司第三采气厂 | Electric control throttle for gas well |
| CN113719258A (en) * | 2020-05-12 | 2021-11-30 | 中国石油天然气股份有限公司 | Downhole throttling method and apparatus |
| CN114109314A (en) * | 2021-11-25 | 2022-03-01 | 西南石油大学 | Device for monitoring, preventing and treating hydrate in throttle well |
| CN114704223A (en) * | 2022-04-24 | 2022-07-05 | 四川大学 | Separable automatic grading pressure reduction device for high-pressure gas well |
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| CN113294128A (en) * | 2021-06-23 | 2021-08-24 | 中国石油天然气股份有限公司长庆油田分公司第三采气厂 | Electric control throttle for gas well |
| CN114109314A (en) * | 2021-11-25 | 2022-03-01 | 西南石油大学 | Device for monitoring, preventing and treating hydrate in throttle well |
| CN114109314B (en) * | 2021-11-25 | 2022-06-17 | 西南石油大学 | Device for monitoring, preventing and treating hydrate in throttle well |
| CN114704223A (en) * | 2022-04-24 | 2022-07-05 | 四川大学 | Separable automatic grading pressure reduction device for high-pressure gas well |
| CN114704223B (en) * | 2022-04-24 | 2022-11-18 | 四川大学 | Separable automatic grading pressure reduction device for high-pressure gas well |
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| CN109057761B (en) | 2020-09-29 |
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Denomination of invention: A downhole choke for natural gas well with electric control delivery and fishing Effective date of registration: 20211217 Granted publication date: 20200929 Pledgee: Harbin Kechuang Financing Guarantee Co.,Ltd. Pledgor: HARBIN AITUOPU TECHNOLOGY CO.,LTD. Registration number: Y2021230000057 |
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