CN106907129A - Trigger sliding sleeve control system and control method in a kind of underground - Google Patents
Trigger sliding sleeve control system and control method in a kind of underground Download PDFInfo
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- CN106907129A CN106907129A CN201710040971.2A CN201710040971A CN106907129A CN 106907129 A CN106907129 A CN 106907129A CN 201710040971 A CN201710040971 A CN 201710040971A CN 106907129 A CN106907129 A CN 106907129A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000003721 gunpowder Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000001960 triggered effect Effects 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000008247 solid mixture Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
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- 239000010410 layer Substances 0.000 description 9
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- 230000005284 excitation Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
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- 239000002253 acid Substances 0.000 description 1
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- 230000008901 benefit Effects 0.000 description 1
- 210000001109 blastomere Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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- 235000013399 edible fruits Nutrition 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- 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 triggering of underground sliding sleeve control system and control method, the underground triggering sliding sleeve control method sends control instruction in the mode that ground sends electromagnetic wave to underground triggering sliding sleeve；The open sliding sleeve by way of gunpowder is fired；The mode that gunpowder is fired promotes piston rod, is allowed to motion upwards, opens underground triggering sliding sleeve.The present invention triggers sliding sleeve and sends control instruction by way of sending electromagnetic wave on ground to underground；Elastic membrane is installed by injection outer end of hole, by spray-hole and piston rod by way of filling equilibrium liquid in the cavity that the sealing ring at two ends is constituted, it is ensured that cementing slurry will not enter underground in the well cementing process by spray-hole to be triggered in sliding sleeve cavity.The present invention is simple to operate, reliable, and low cost can be greatly enhanced fracture acidizing efficiency of construction, any opener is entered without the need under, farthest avoid underground complex accident.
Description
Technical field
The invention belongs to oil gas field storey increase design technical field, more particularly to a kind of underground triggering sliding sleeve control system and control
Method processed.
Background technology
The not enough contradiction of domestic oil gas supply is increasingly protruded, and oil can adopt, easily adopt reserves is constantly reduced, and exploration and development is just
Develop to deep layer, unconventional elusive reservoir, stratum becomes increasingly complex, interlayer difference is big, and most reservoirs need in Completion Operations
Fracture acidizing is transformed, and it is most effective that fracture acidizing is transformed into solution interlayer contradiction, raising producing degree of reservoir, excavation interlayer potentiality
Measure.As technology develops, existing Oil/gas Well generally uses staged fracturing acidification technique, but currently without a kind of reliable pressure
Split Acidizing Process Technique can take into account efficiently, full-bore and avoid the aspects such as down hole problem, cause current staged fracturing acid
Change the problems such as efficiency of construction is not high, down hole problem is more.Although having been developed that remote control intelligence sliding sleeve at present, can be very big
Ground improves efficiency of construction, but due to high costs, fault rate is high, it is difficult to large-scale application at the scene.Domestic oil gas supply is not enough
Contradiction increasingly protrude, oil can adopt, easily adopt reserves is constantly reduced, exploration and development forward direction deep layer, unconventional elusive reservoir hair
Exhibition, stratum becomes increasingly complex, and interlayer difference is big, and most reservoirs need fracture acidizing to transform in Completion Operations, and fracture acidizing changes
Solution interlayer contradiction is caused, producing degree of reservoir is improved, is excavated the maximally effective measure of interlayer potentiality.It is existing as technology develops
There is Oil/gas Well generally using staged fracturing acidification technique, for this technique, how in the quick inter-drain for setting up pit shaft and stratum
The efficiency of construction of staged fracturing acidification technique is improved on the premise of circulation passage, down hole problem and later stage workover treatment shadow is reduced
Sound is an emphasis problem to be solved.Sliding sleeve as a kind of downhole tool that can link up/isolate Oil/gas Well and formation fluid,
Perforation is widely used in horizontal well point at present as a kind of method that can link up/isolate Oil/gas Well and formation fluid simultaneously
In section fracture acidizing working string.For sliding sleeve, current oilfield horizontal well staged fracturing acidifying uses mechanical pitching sliding sleeve, beats
The pressure break ball that every one-level sliding sleeve is required for putting into correspondingly-sized is opened, each layer sliding sleeve is opened in successively pitching from top to bottom during construction, often
One-level sliding sleeve tee internal diameter and pressure break ball internal diameter are differed, and from top to bottom, sliding sleeve tee and pressure break ball internal diameter increase step by step, this
Plant shift sleeve structure complicated, latus rectum is small, and pressure break series is limited；And when the reservoir later stage produces water, sliding sleeve cannot be realized closing closure,
Cause Oil ＆ Gas Productivity reduction or even scrap.For example, " a kind of ball-casting opened self-locking sliding sleeve " disclosed in Chinese patent literature, open
Number：CN201972661U, publication date：On 09 14th, 2011, opened this patent describes the pitching in net horizontal section operation
Pressure break sandblasting passage, and holding production channels open is locked, but still pitching segmentation is used, segments is limited." pressure is opened in doubles to patent
Difference sliding sleeve ", publication number：CN201723198U, publication date：On 01 26th, 2011, the utility model was promoted using pressure difference
Upper and lower fluid cylinder opens passage respectively to moving up and down, can solve pitching sliding sleeve cannot be used for horizontal bare hole well staged fracturing,
The problem of tool tubular column first paragraph is acidified, but still cannot solve to be segmented limitation problem.Based on this, some new machineries are developed again
The switchable sliding sleeve of formula, it is this kind of slide over fracture acidizing construct when, can by pitching or under enter coiled tubing belt switch TO
Sliding sleeve, produces water, it is necessary to during closedown sliding sleeve when the reservoir later stage, under enter coiled tubing belt switch instrument closedown sliding sleeve.Such as patent "
Plant the Intelligent sliding sleeve in selective switch slide bushing assembly ", publication number：CN202125290U, publication date：01 month 2012 25
Day, the utility model is to enter special opening-closing tool under utilizing, and opens and closes sliding sleeve.The greatest problem of this kind of sliding sleeve is continuous
Oil pipe belt switch tool switch sliding sleeve needs to use continuous oil pipe device, and operating cost is high, and continuous oil pipe operation needs to spend
Plenty of time, the method complex operation, long construction period, cost is very very high.Based on this, remote controlled electricity is developed again
Dynamic sliding sleeve, such as patent " for the ground control underground sliding sleeve of staged fracturing of horizontal well acidifying transformation ", publication number：
CN104088604A, publication date：On October 08th, 2014, the patent of invention sends control instruction remote control by ground
The opening and closing of underground sliding sleeve.This kind of sliding sleeve is although easy to operate, time-consuming, but complex structure, high cost, and easily go out
Existing failure, and limited by design size, it is impossible to meet the requirement of tubing string full-bore.For perforation, current oil gas field level
Well staged fracturing is acidified frequently with two methods of perforating gun sub-clustering perforation and hydraulic perforation.Perforating gun sub-clustering perforation is generally tied
Close bridging plug to apply together, realize successively perforation and Inter-zonal packing.For example " a kind of formula waterpower bridging plug that pumps into for exempting to bore plug is segmented patent
Fracturing process ", publication number：CN104564003A, publication date：On 04 29th, 2015, the patent of invention was by perforating gun point
Shower hole and bridging plug connection make mode, realize each layer of perforation, pressure break, packing connection work.But each layer will enter axle-linked cable-car down,
Increased activity duration and cost；If running into the problem of casing deformation simultaneously, perforating gun and bridging plug can be caused to enter down
In place, subsequent construction is influenceed.For hydraulic perforation mode, realize that perforation and pressure break connection are made using waterpower packing principle, effect
Rate is higher, for example patent " a kind of fracture acidizing fixed tubular column water-jet technique and its tubing string ", publication number：
CN103075139A, publication date：On 05 01st, 2013, but have oil pipe or coiled tubing during due to pressing crack construction in pit shaft
Interior, construction maximum pump discharge is restricted, it is difficult to the need for meeting volume fracturing.To sum up, foreign level well staged fracturing acidifying changes
Make in technique, newest sliding sleeve control method is that pitching is opened sliding sleeves at different levels and constructed successively in construction, treat that each layer construction is complete
After the completion of portion, anti-row pressure blastomere simultaneously bores the ball seat in each pitching sliding sleeve, is produced；In process of production, such as a certain layer
Position or some layer of position water outlet, then descend coiled tubing that the sliding sleeve of respective layer position is closed with sliding sleeve switch instrument；This technology can be real
Existing switching sliding sleeve, but segmentation series is limited；In domestic staged fracturing of horizontal well Acidizing, commonly used is also pitching
Formula sliding sleeve.But compared to same kind of products at abroad, this kind of sliding sleeve does not possess later stage closable function.And existing pitching sliding sleeve behaviour
Then need to wait ground pitching to fall the time that sliding sleeve tee is spent, it is ageing poor.And penetrated for newest at present
Hole method, is exactly that, using perforating gun sub-clustering perforation and hydraulic perforation, two methods are also required to lower entrance aperture rifle or perforation
Tubing string, not only increases the activity duration, can also run into down hole problem, and wherein hydraulic perforation is also limited by operational discharge capacity
System.
In sum, current remote control intelligence sliding sleeve exists with high costs, and fault rate is high, it is difficult on a large scale should at the scene
With.
The content of the invention
It is an object of the invention to provide a kind of triggering of underground sliding sleeve control system and control method, it is intended to solve current oil
Construction speed that oil/gas well stimulation transformation is brought due to casing deformation using staged fracturing+perforation bridging plug continuous cropping technique is serious delayed to ask
Topic, and time and the cost of lower bridging plug and perforation are saved, it is greatly enhanced the problem that well production increment transforms efficiency.
The present invention is achieved in that a kind of underground triggering sliding sleeve control method, and sliding sleeve control method is triggered in the underground
The mode for sending electromagnetic wave on ground sends control instruction to underground triggering sliding sleeve；The open sliding sleeve by way of gunpowder is fired；
The mode that gunpowder is fired promotes piston rod, is allowed to motion upwards, opens underground triggering sliding sleeve.The present invention being capable of remote real_time control
Underground trigger sliding sleeve opening, eliminate existing underground sliding sleeve need pitching or under enter coiled tubing opening program, save
Plenty of time and cost；Meanwhile, underground triggering sliding sleeve is a kind of full-bore sliding sleeve, will not be appointed for subsequent job and production are produced
What connection disturbs.
Further, the underground triggering sliding sleeve control method installs elastic membrane by injection outer end of hole, by spray-hole
With piston rod by way of filling equilibrium liquid in the cavity that the sealing ring at two ends is constituted, it is ensured that cementing slurry is in well cementing process
In will not by spray-hole enter underground trigger sliding sleeve cavity in.
Further, the gunpowder is fired including solid, liquid, gas, gas-liquid mixture, solidliquid mixture, gas-solid mixing
Thing, gas-liquid-solid mixture are by way of ignition produces gases at high pressure.
Further, described surface em ripple sending method, when scene only has a bite Oil/gas Well, selects the set of Oil/gas Well
Pipe or oil pipe and another grounded metal bar respectively as vertical dipole antenna radiation pattern two electrodes, well head and gold
Category bar is used as electrode interface；When scene meets double borehole conditions, the sleeve pipe that any two mouthfuls of wells may be selected (refers mainly to oil reservoir set
Pipe) or oil pipe as vertical dipole antenna radiation pattern two electrodes, two mouthfuls of well heads of well are used as electrode interface.
Sliding sleeve control is triggered another object of the present invention is to provide a kind of underground of the underground triggering sliding sleeve control method
System processed, the underground triggering sliding sleeve control system includes：
Signal sending system, for sending electromagnetic wave；Ground signal sends system and uses vertical dipole antenna mode, bag
The control of surface em ripple signal and excitation set, electrode etc. are included, when scene only has a bite Oil/gas Well, the sleeve pipe of Oil/gas Well is selected
Or oil pipe and another grounded metal bar are respectively as two electrodes of vertical dipole antenna radiation pattern, well head and metal
Bar electrode as electrode interface, as shown in Figure 2；When there are 2 mouthfuls or more wells in well site, the well head of any wherein two mouthfuls wells of selection is made
It is two electrode interfaces of vertical dipole antenna radiation pattern, as shown in Figure 3；
Underground signal reception system, is communicated by electromagnetic wave with signal sending system；For receiving signal sending system hair
The electromagnetic wave signal penetrated；The fluxgate sensor that underground is installed receives the electromagnetic wave signal that ground sends, and the letter for receiving
Number send to underground control board.
Underground signal treatment and control system, the treatment for realizing electromagnetic wave signal；Underground control board is to magnetic flux
The signal that door sensor is received such as is nursed one's health, is filtered at the treatment, extracts control information and the instruction being previously set with itself
Contrasted, if unanimously, then it is assumed that receive control instruction, then control igniter fire；
Driving source is lighted a fire, for realizing lighting a fire；Driving source is exactly gunpowder, and igniter lights gunpowder, and gunpowder is fired, generation
Gases at high pressure promote the piston rod movement of underground triggering sliding sleeve.
Executing agency, for completing sliding sleeve opening action.Executing agency is exactly the piston rod that sliding sleeve is triggered in underground.
The underground triggering sliding sleeve control method includes：The mode for sending electromagnetic wave on ground sends to underground triggering sliding sleeve
Control instruction；After underground triggering sliding sleeve receives correct control instruction, control igniter ignites grain, completes sliding sleeve and opens
Action；Equipment is launched by surface em ripple signal first and control command is loaded into the form of a carrier wave low frequency sinusoidal electromagnetic wave letter
Be amplified in number and launched, wherein control command be one group 3,4,5,6,7,8,9,10 digits or
The binary coding of the more seniority top digit within 1000；Underground fluxgate sensor receives this electromagnetism with control command
Wave carrier signal signal, and underground control board is transmitted the signal to, underground control board is amplified by signal, filters etc.
Reason, extracts the control command in carrier signal, and is contrasted with the default control instruction of underground control board, such as
Fruit ground send control command it is inconsistent with the default control instruction of underground control board, then underground control board not to
Igniter exports firing command, if the control command that ground sends is consistent with the default control instruction of underground control board,
Then underground control board exports firing command, igniter fire to igniter.
The underground triggering sliding sleeve control system is further included：Piston rod；
Piston rod seals gunpowder cavity and its interior grain by the sealing ring at gunpowder chamber two ends；Piston rod is by injection
The sealing ring at hole two ends is insulated in pit shaft and annular fluid, and each injection outer end of hole is respectively mounted elastic membrane, and to by spray-hole
Equilibrium liquid is filled in cavity with piston rod by the sealing ring composition at two ends；Underground is controlled circuit by containment vessel by sealing ring
Plate and stack seal are in the control chamber on control cavity shell；Underground control board control igniter fire, lights gunpowder
Cylinder, grain is fired, and produces gases at high pressure, promotes piston rod to move upwards, realizes that underground triggering sliding sleeve is opened.
Underground triggering sliding sleeve control system and control method that the present invention is provided, piston is promoted by way of gunpowder is fired
Bar, is allowed to motion upwards, opens underground triggering sliding sleeve；Gunpowder fire refer to various forms of combustibles (including solid, liquid,
Gas, gas-liquid mixture, solidliquid mixture, gas-solid mixture etc.) by way of ignition produces gases at high pressure.By
The mode that ground sends electromagnetic wave sends control instruction to underground triggering sliding sleeve.Elastic membrane is installed by injection outer end of hole,
By spray-hole and piston rod by way of filling equilibrium liquid in the cavity that the sealing ring at two ends is constituted, it is ensured that cementing slurry exists
Will not enter underground by spray-hole in well cementing process to trigger in sliding sleeve cavity.
Brief description of the drawings
Fig. 1 is triggering sliding sleeve control system architecture schematic diagram in underground provided in an embodiment of the present invention, a：Sliding sleeve closed mode,
b：Sliding sleeve opening；
Fig. 2 is triggering sliding sleeve schematic diagram in surface em ripple control underground provided in an embodiment of the present invention；
Fig. 3 is the surface em ripple control underground triggering that job site provided in an embodiment of the present invention possesses double borehole conditions
Sliding sleeve schematic diagram；
Fig. 4 is triggering sliding sleeve view in underground provided in an embodiment of the present invention.
In figure：1st, top connection；2nd, containment vessel；3rd, igniter；4th, fluxgate sensor；5th, underground control board；6th, spray
Perforation；7th, cavity shell is controlled；8th, grain；9th, relief hole；10th, battery pack；11st, sealing ring；12nd, piston rod；13rd, elastic membrane；
14th, equilibrium liquid；15th, well head；16th, the control of surface em ripple signal and excitation set；17th, electrode；18th, well；19th, well cementation water
Mud；20th, the first underground triggering sliding sleeve；21st, the second underground triggering sliding sleeve；22nd, sleeve pipe；23rd, the n-th underground triggering sliding sleeve；24th, signal
Transmission system；25th, underground signal reception system；26th, underground signal treatment and control system；27th, driving source igniting；28th, perform
Mechanism；29th, twin-well field plate 1；30th, twin-well well 1；31st, twin-well field plate 2；32nd, twin-well well 2.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
In constructing at the scene, generally with sleeve pipe or oil pipe it is disposable under enter multiple undergrounds triggering sliding sleeves, to ensure each well
The independent control of lower triggering sliding sleeve is opened, in advance for each sliding sleeve sets different control instructions, each sliding sleeve before going into the well
In the electromagnetic wave signal that lasting retrieval ground sends, only when the control instruction phase that the electromagnetic wave signal for receiving is set with itself
During matching, sliding sleeve can just be acted.
Described surface em ripple sending method, when scene only have a bite Oil/gas Well when, select Oil/gas Well sleeve pipe 22 with
And another earth electrode 17 is respectively as two electrodes of vertical dipole antenna radiation pattern, well head 15 and the conduct of electrode 17
Electrode interface, as shown in Figure 2；When scene meets double borehole conditions, the sleeve pipe or oil pipe of any two mouthfuls of wells may be selected as vertical
Two electrodes of straight dipole sub-antenna radiation pattern, two mouthfuls of well heads of well (twin-well field plate 1 29 and twin-well field plate 2 31) are made
It is electrode interface, as shown in Figure 3.
Application principle of the invention is explained in detail below in conjunction with the accompanying drawings.
As shown in figure 4, triggering sliding sleeve control system in underground provided in an embodiment of the present invention includes：Signal sending system 24,
The treatment of underground signal reception system 25, underground signal and the igniting 27, executing agency 28 of control system 26, driving source.
Signal sending system 24, for sending electromagnetic wave.
Underground signal reception system 25, is communicated by electromagnetic wave with signal sending system 24；System is sent for receiving signal
The electromagnetic wave signal of the transmitting of system 24.
Underground signal treatment and control system 26, the treatment for realizing electromagnetic wave signal.
Driving source igniting 27, for realizing lighting a fire.
Executing agency 28, for completing sliding sleeve opening action.
Equipment is launched by surface em ripple signal first and control command is loaded into the form of a carrier wave low frequency sinusoidal electromagnetism
It is amplified and launches in ripple signal, wherein control command is one group 3,4,5,6,7,8,9,10
Number or 1000 within more seniority top digit binary coding；Underground fluxgate sensor receives this and carries control command
Electromagnetic wave carrier signal, and underground control board is transmitted the signal to, underground control board is amplified by signal, filters etc.
Treatment, extracts the control command in carrier signal, and is contrasted with the default control instruction of underground control board,
If the control command that ground sends is inconsistent with the default control instruction of underground control board, underground control board is not
Firing command is exported to igniter, if control command and the default control instruction one of underground control board that ground sends
Cause, then underground control board exports firing command, igniter fire to igniter.
Application principle of the invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the original state that underground triggering slides over underground is to be closed, piston rod 12 is by injection
The sealing ring at the two ends of hole 6 is insulated in pit shaft and annular fluid, and each outer end of spray-hole 6 is respectively mounted elastic membrane 13, and to by spraying
Perforation 6 and piston rod 12 fill equilibrium liquid in the cavity by the sealing ring composition at two ends.Containment vessel 2 is by sealing ring underground
Control board 5 and battery pack 10 are sealed in the control chamber on control cavity shell.When operating personnel need to open underground triggering
During sliding sleeve, control signal is sent to underground on ground, after underground triggering sliding sleeve receives control signal, underground control board 5
Control igniter 3 is lighted a fire, and lights grain 8, and grain 8 is fired, and produces gases at high pressure, promotes piston rod 12 to move upwards, real
Existing underground triggering sliding sleeve is opened.
The method of present invention open sliding sleeve by way of gunpowder is fired；Piston rod is promoted by way of gunpowder is fired,
Motion upwards is allowed to, underground triggering sliding sleeve is opened；Here gunpowder is fired and refers to various forms of combustibles (including solid, liquid
Body, gas, gas-liquid mixture, solidliquid mixture, gas-solid mixture etc.) by way of ignition produces gases at high pressure.It is logical
Cross the mode for sending electromagnetic wave on ground and send control instruction to underground triggering sliding sleeve.Elasticity is installed by injection outer end of hole
Film, by spray-hole and piston rod by way of filling equilibrium liquid in the cavity that the sealing ring at two ends is constituted, it is ensured that well cementation water
Mud will not enter underground in well cementing process by spray-hole to be triggered in sliding sleeve cavity.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (7)
1. sliding sleeve control method is triggered in a kind of underground, it is characterised in that the underground triggering sliding sleeve control method sends on ground
The mode of electromagnetic wave sends control instruction to underground triggering sliding sleeve；The open sliding sleeve by way of gunpowder is fired；What gunpowder was fired
Mode promotes piston rod, is allowed to motion upwards, opens underground triggering sliding sleeve.
2. sliding sleeve control method is triggered in underground as claimed in claim 1, it is characterised in that trigger sliding sleeve controlling party in the underground
Method installs elastic membrane by injection outer end of hole, is noted in the cavity being made up of the sealing ring at two ends spray-hole and piston rod
The mode of full equilibrium liquid, it is ensured that cementing slurry will not enter underground and trigger sliding sleeve cavity in well cementing process by spray-hole
It is interior.
3. underground as claimed in claim 1 triggering sliding sleeve control method, it is characterised in that the gunpowder fire including solid,
Liquid, gas, gas-liquid mixture, solidliquid mixture, gas-solid mixture, gas-liquid-solid mixture produce high pressure gas by ignition
The mode of body.
4. sliding sleeve control method is triggered in underground as claimed in claim 1, it is characterised in that described surface em ripple sender
Formula, when scene only has a bite Oil/gas Well, select the sleeve pipe or oil pipe and another grounded metal bar of Oil/gas Well respectively as
Two electrodes of vertical dipole antenna radiation pattern, well head and metallic rod are used as electrode interface；When scene meets twin-well eye bar
During part, the sleeve pipe or oil pipe of any two mouthfuls of wells may be selected as two electrodes of vertical dipole antenna radiation pattern, Liang Koujing
Well head as electrode interface.
5. sliding sleeve control system is triggered in a kind of underground of triggering sliding sleeve control method in underground as claimed in claim 1, and its feature exists
In the underground triggering sliding sleeve control system includes：
Signal sending system, for sending electromagnetic wave；
Underground signal reception system, is communicated by electromagnetic wave with signal sending system；For receiving signal sending system transmitting
Electromagnetic wave signal；
Underground signal treatment and control system, the treatment for realizing electromagnetic wave signal；
Driving source is lighted a fire, for realizing lighting a fire；
Executing agency, for completing sliding sleeve opening action.
6. sliding sleeve control system is triggered in a kind of underground of triggering sliding sleeve control method in underground as claimed in claim 1, and its feature exists
In the underground triggering sliding sleeve control method includes：Equipment is launched control command to carry by surface em ripple signal first
Waveshape is loaded into low frequency sinusoidal electromagnetic wave signal and is amplified and launches, and wherein control command is one group 3,4,
5,6,7,8,9, the binary coding of the more seniority top digit within 10 digits or 1000；Underground fluxgate sensor
This electromagnetic wave carrier signal with control command is received, and transmits the signal to underground control board, underground control
Circuit board by signal amplify, filtering process, the control command in carrier signal is extracted, and with underground control board
Default control instruction is contrasted, if the control command that ground sends is with the default control instruction of underground control board not
Unanimously, then underground control board does not export firing command to igniter, if the control command that ground sends is controlled with underground
The default control instruction of circuit board is consistent, then underground control board exports firing command, igniter fire to igniter.
7. sliding sleeve control system is triggered in underground as claimed in claim 5, it is characterised in that the underground triggering sliding sleeve control system
System is further included：Piston rod；
Piston rod is insulated in pit shaft and annular fluid by the sealing ring at spray-hole two ends, and each injection outer end of hole is respectively mounted bullet
Property film, and to filling equilibrium liquid in the cavity being made up of the sealing ring at two ends spray-hole and piston rod；Containment vessel is by close
In control chamber of the seal underground control board and stack seal on control cavity shell；Underground control board control point
Firearm is lighted a fire, and lights grain, and grain is fired, and produces gases at high pressure, promotes piston rod to move upwards, realizes that underground triggering is slided
Set is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107246250A (en) * | 2017-08-07 | 2017-10-13 | 成都大学 | A kind of intelligent sliding sleeve of sleeve pipe toe-end controlled based on liquid pulse signal |
| CN108343396A (en) * | 2018-02-01 | 2018-07-31 | 成都众智诚成石油科技有限公司 | A kind of remote pressure control self-sealing underground pressure difference sliding sleeve |
| WO2019169490A1 (en) * | 2018-03-05 | 2019-09-12 | Kobold Corporation | Thermal expansion actuation system for sleeve shifting |
| CN110374551A (en) * | 2018-12-28 | 2019-10-25 | 成都众智诚成石油科技有限公司 | A kind of underground hydraulic-control starting sliding sleeve control system and control method |
| CN110924895A (en) * | 2019-12-16 | 2020-03-27 | 四川航天烽火伺服控制技术有限公司 | Underground switch sliding sleeve |
| CN111472716A (en) * | 2020-04-22 | 2020-07-31 | 中国石油天然气集团有限公司 | Method for improving temporary plugging effect of wide natural cracks or artificial cracks |
| CN111764868A (en) * | 2020-07-14 | 2020-10-13 | 中国石油集团渤海钻探工程有限公司 | Downhole seat block extension device |
| CN115469584A (en) * | 2022-09-21 | 2022-12-13 | 中国石油天然气集团有限公司 | Downhole tool remote control system and method based on light induction |
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| CN111472716B (en) * | 2020-04-22 | 2022-05-17 | 中国石油天然气集团有限公司 | Method for improving temporary plugging effect of wide natural cracks or artificial cracks |
| CN111472716A (en) * | 2020-04-22 | 2020-07-31 | 中国石油天然气集团有限公司 | Method for improving temporary plugging effect of wide natural cracks or artificial cracks |
| CN111764868A (en) * | 2020-07-14 | 2020-10-13 | 中国石油集团渤海钻探工程有限公司 | Downhole seat block extension device |
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