CN108386167A - Horizontal well water pumping gas production completion tubular column and production method - Google Patents
Horizontal well water pumping gas production completion tubular column and production method Download PDFInfo
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- CN108386167A CN108386167A CN201810101692.7A CN201810101692A CN108386167A CN 108386167 A CN108386167 A CN 108386167A CN 201810101692 A CN201810101692 A CN 201810101692A CN 108386167 A CN108386167 A CN 108386167A
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- horizontal well
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- water pumping
- tubular column
- drainpipe
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 60
- 238000005086 pumping Methods 0.000 title claims abstract description 39
- 235000020681 well water Nutrition 0.000 title claims abstract description 34
- 239000002349 well water Substances 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 98
- 230000001681 protective effect Effects 0.000 claims abstract description 26
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000004576 sand Substances 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 238000011282 treatment Methods 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 59
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 22
- 238000000034 method Methods 0.000 description 22
- 239000004615 ingredient Substances 0.000 description 10
- 239000003345 natural gas Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 238000010626 work up procedure Methods 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- 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
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
-
- 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
- E21B43/34—Arrangements for separating materials produced by the well
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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of horizontal well water pumping gas production completion tubular column and production method, which includes：Protective casing in horizontal well vertical well section is set；Slotted liner in horizontal well net horizontal section is set, and the slotted liner is suspended on the protective casing, and the net horizontal section is for being arranged in combustible ice payzone；Air collecting pipe in the protective casing is set, and the lower end of the air collecting pipe is located above the combustible ice payzone, and the upper end of the air collecting pipe is for fixing on the ground；The lower end of the mobilizable drainpipe being arranged in the horizontal well, the drainpipe is located in the horizontal segment, and space out predetermined elevation is provided with the first detecting liquid level part and the second detecting liquid level part on the drainpipe.Horizontal well water pumping gas production completion tubular column provided by the invention and production method have started the new technology of the horizontal well water pumping gas production of combustible ice exploitation, can be carried out efficiently combustible ice exploitation.
Description
Technical field
The present invention relates to combustible ice production technique field, more particularly to a kind of horizontal well water pumping gas production completion tubular column and production
Method.
Background technology
Gas hydrates (natural gas hydrate, abbreviation NGH) are natural gases under certain low temperature, high pressure
The non-stoichiometric cage compound to be formed is combined with water, appearance is as snow or ice.It is a large amount of due to containing in gas hydrates
The imflammable gas such as methane, easily burn, therefore be otherwise known as " combustible ice ".With the changes such as traditional coal, oil and natural gas
The stone energy is compared, and the exploitation of combustible ice is more not easy.The exploitation of world combustible ice is limited to marine site more at present, and main recovery method has
3 kinds：First, heat shock method, i.e., decomposite the principle of methane gas when being heated using combustible ice；Second is that voltage drop method, expert proposes will
Nuke rubbish is embedded to ground end, so that it is decomposited methane gas using nuclear radiation effect；Third, injectant method, injects to combustible ice payzone
Brine, methanol, ethyl alcohol etc. destroy original balance and promote its decomposition.Above-mentioned recovery method technical sophistication, speed are slow, costly, and
And in ocean hydrate pressure it is higher, realize pipeline Reasonable Arrangement, natural gas it is efficient collect it is more difficult.
In combustible ice recovery process, due to the infiltration of liquid, two phase flow is formed in infiltration runner and flow string, it is right
The energy of gas well causes damages, and arranges the liquid that do not go out and is accumulated in oil pipe, forms gas well plug-ging, seriously affect production efficiency.
Usually improve hydrops situation with the method for water pumping gas production, resumes production.Current water drainage-gas recovery technology method includes：Optimizing pipe string
Method, foaming water discharge method, gaslift drainage, machine take out method, electric submersible pump drainage, ultrasonic wave water pumping gas production method and fluid jet etc..Wherein：
Optimizing pipe string method is exactly the middle and later periods developed in gas well, by adjusting the size of flow string, reduces the slippage damage of gas-liquid two-phase
It loses, to further the energy of gas well itself be utilized to drain outward, increases gas deposit recovery efficiency.Foam drainage gas recovery is exactly to pass through ground
Face equipment injects surfactant to underground, is allowed to be contacted with water, and in the mixed of natural gas (or external injection air source)
The foam that reaction under agitaion generates low-density is closed, the surface tension of liquid in well is reduced, changes gas-liquid two-phase in pit shaft
Fluidised form dredges gas-liquid channel, and natural gas entrained foam rises to ground, to achieve the purpose that water pumping gas production.Machine takes out the work of method
Mode is bar deep well pump to be mounted on oil pipe, and transfer to suitable depth, and machine drives sucker rod motive liquid and earthward
Transport, sucker rod have plunger, are pumped in inspiration well by the switch tie surface of upper and lower stroke standing valve.Natural gas
Constantly assemble in oil, collar-shaped space, after casing pressure is more than certain value, natural gas is just plucked out of and carries out gas-liquid point on ground
From to achieve the purpose that water pumping gas production.Gas lift method refers to when the energy of gas well is not enough to lifting ponding, and artificial gives gas
Well provides energy.High-pressure natural gas is injected into the well of stop-spraying to increase bottom pressure, supplements stratum energy, make the gas in shaft bottom
Body has the ability of lifting liquid to carry out water pumping gas production, restores gas capacity of well.These methods both can be answered individually
With can be combined again, for example gas lift method is combined with foaming water discharge method, can improve drainage efficiency to a greater extent.These
Method is to be designed for straight well, and horizontal well is compared to straight well, has big with payzone contact area, and producing pressure differential is small,
Flow resistance is small, and well yield is high, can avoiding obstacles and many advantages, such as bad environments area.At present in combustible ice exploitation
Horizontal well water pumping gas production field is still in the exploratory stage.
Invention content
The object of the present invention is to provide a kind of horizontal well water pumping gas production completion tubular column and production methods, have started combustible ice and have opened
The new technology for the horizontal well water pumping gas production adopted can be carried out efficiently combustible ice exploitation.
Following technical proposal can be used to realize in the above-mentioned purpose of the present invention：
A kind of horizontal well water pumping gas production completion tubular column, the horizontal well water pumping gas production completion tubular column include：
Protective casing in horizontal well vertical well section is set；
Slotted liner in horizontal well net horizontal section is set, and the slotted liner is suspended on the protective casing, described
Net horizontal section is for being arranged in combustible ice payzone；
Air collecting pipe in the protective casing is set, the lower end of the air collecting pipe is located above the combustible ice payzone,
The upper end of the air collecting pipe is for fixing on the ground；
The lower end of the mobilizable drainpipe being arranged in the horizontal well, the drainpipe is located in the horizontal segment,
Space out predetermined elevation is provided with the first detecting liquid level part and the second detecting liquid level part on the drainpipe.
In one preferred embodiment, the drainpipe is the movable pipe made of continuously managing.
In one preferred embodiment, the lower end of the drainpipe is disposed with sand washing connector, electric submersible pump unit.
In one preferred embodiment, the electric submersible pump unit is centrifugal multistage pump multiple centrifugal pump comprising：Submersible motor, guarantor
Protect device and electric submersible pump.
In one preferred embodiment, the slotted liner is suspended on by packer on the protective casing.
In one preferred embodiment, the upper end of the protective casing is connected with produced water treatment equipment and ground row
Waterpipe.
In one preferred embodiment, the upper end of the air collecting pipe be connected in turn ground gas-liquid separator, wind turbine,
Ground steam line.
In one preferred embodiment, further include controller, the controller and the first detecting liquid level part, the
Two detecting liquid level parts, electric submersible pump unit, ground gas-liquid separator, wind turbine are electrically connected, and the controller can be according to described first
Liquid level signal is opened the electric submersible pump unit and is drained；The electric submersible pump unit is closed according to second liquid level signal to stop
Draining, and start the ground gas-liquid separator, wind turbine, carry out gas generation.
A kind of production method of above-mentioned horizontal well water pumping gas production completion tubular column, including：
Obtain the first liquid level signal of the first detecting liquid level part；The electric submersible pump machine is opened according to first liquid level signal
Group is drained, the up and down drainpipe in draining；
Obtain the second liquid level signal of the second detecting liquid level part；The electric submersible pump machine is closed according to second liquid level signal
Group stops draining, carries out gas generation.
In one preferred embodiment, the first level detection part is located at the upper of the second detecting liquid level part
Portion.
The features and advantages of the invention are：Horizontal well water pumping gas production completion tubular column provided herein and production method,
By the way that the protective casing in horizontal well vertical well section is arranged；Slotted liner in horizontal well net horizontal section, the slot lining are set
Pipe is suspended on the protective casing, and the net horizontal section is for being arranged in combustible ice payzone；It is arranged in the protective casing
The lower end of interior air collecting pipe, the air collecting pipe is located above the combustible ice payzone, and the upper end of the air collecting pipe is for being fixed on
On ground；The lower end of the mobilizable drainpipe being arranged in the horizontal well, the drainpipe is located in the horizontal segment, institute
It states space out predetermined elevation on drainpipe and is provided with the first detecting liquid level part and the second detecting liquid level part, in use, first liquid
Face detection part is drained when detecting liquid level, and drainpipe can carry out up and down at this time, makes shaking out in well can be by
It takes away.When second detecting liquid level part detects lower liquid level, terminate to draw water, carries out gas generation.It so alternately produces, starts
The new technology of the horizontal well water pumping gas production of combustible ice exploitation can be carried out efficiently combustible ice exploitation.
With reference to following description and accompanying drawings, the particular implementation of the application is disclosed in detail, specifies the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in range.In appended power
In the range of the spirit and terms that profit requires, presently filed embodiment includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It is used in a other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
Fig. 1 is a kind of schematic diagram of horizontal well water pumping gas production completion tubular column in the application embodiment；
Fig. 2 is a kind of step flow chart based on aforementioned production method in the application embodiment.
Reference sign：
1- slotted liners, 2- protective casings, the ground 3-, 4- air collecting pipes, 5- drainpipes, 6- combustible ices payzone, 7- sand washings connect
Head, 8- electric submersible pumps unit, 9- produced water treatments equipment, 10- land drainages pipeline, the ground 11- gas-liquid separator, 12- wind turbines,
The ground 13- steam line.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, elaborate to technical scheme of the present invention, it should be understood that these
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, after having read the present invention, this field skill
Art personnel each fall in the application range as defined in the appended claims the modification of the various equivalent forms of the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.
It should be noted that when element is referred to as " being set to " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "upper",
"lower", "left", "right" and similar statement for illustrative purposes only, are not offered as being unique embodiment.
A kind of horizontal well water pumping gas production completion tubular column of present invention offer and production method, have started the level of combustible ice exploitation
The new technology of well water pumping gas production can be carried out efficiently combustible ice exploitation.
Referring to Fig. 1, providing a kind of horizontal well water pumping gas production completion tubular column in the application embodiment, may include：
Protective casing 2 in horizontal well vertical well section is set；Slotted liner 1 in horizontal well net horizontal section, the slotted liner 1 are set
It is suspended on the protective casing 2, the net horizontal section is for being arranged in combustible ice payzone 6；It is arranged in the protective casing 2
The lower end of interior air collecting pipe 4, the air collecting pipe 4 is located at 6 top of the combustible ice payzone, and the upper end of the air collecting pipe 4 is for solid
It is scheduled on ground 3；The lower end of the mobilizable drainpipe 5 being arranged in the horizontal well, the drainpipe 5 is located at the level
In section, space out predetermined elevation is provided with the first detecting liquid level part and the second detecting liquid level part on the drainpipe 5.
A kind of horizontal well water pumping gas production completion tubular column suitable for combustible ice exploitation, master are provided in the application embodiment
Including：Slotted liner 1, protective casing 2, ground 3, air collecting pipe 4, drainpipe 5.Further, may include：Sand washing connector 7,
Electric submersible pump unit 8, produced water treatment equipment 9, land drainage pipeline 10, ground gas-liquid separator 11, wind turbine 12, ground air supply pipe
Road 13.
It, can be real using 1 completion technique of horizontal well slotted liner after completing Horizontal Well Drilling well operations when specific installation
Now preferable sand control effect.Specifically, slotted liner 1 can be suspended on protective casing 2.Wherein, which can be with
It is suspended on the protective casing 2 by packer.Due to there is slips to lock rubber sealing structure in packer, this slips is just
The function of suspension can be undertaken.
From the air collecting pipe 4 and drainpipe 5 of the tripping in routine into well of ground 3.Wherein, which can be by continuous control
At movable pipe.When needing carry out activity sand washing, continuous pipe top and continuous pipe pipe in coiled tubing unit are welded
Dragging operation can be carried out using coiled tubing unit.Plain tubing, which carries out sand washing operation, to be influenced due to oil connection, lead
Cause the damage to 4 column of air collecting pipe.And coiled tubing is since there is no the structure of oil connection, it can be to avoid to 4 column of air collecting pipe
Damage.Continuous pipe, which removes speed, simultaneously can reach 2000 meters per hour, far above 200 meters of activity speed per hour of conventional oil pipe
Degree.
Wherein, air collecting pipe 4 is fixed behind the top of straight well section combustible ice payzone 6.Specifically, the air collecting pipe 4 can be with
It is fixed by the production tree of well head.And after drainpipe 5 is in horizontal segment, the manufactured drainpipe 5 of the continuous pipe of reason, which has, to be grasped
For complicated pressure seal and well control during work, need not be threadedly coupled, and can work in production, and can be very
Enter the characteristics of well neutralization is enhanced from well soon, drainpipe 5 can be movable in process of production.
In one embodiment, the bottom of the drainpipe 5 is sequentially arranged with sand washing connector 7 and electric submersible pump unit 8, wherein
The electric submersible pump unit 8 is centrifugal multistage pump multiple centrifugal pump comprising：Submersible motor, protector and electric submersible pump.Sand washing connector 7 can make drainpipe 5
In hydraulic shock sand setting, promote mulling liquid to return out ground 3 upwards from the central tube inside sand washing connector 7, cooperation drainpipe 5 can
With the feature of activity, to realize the horizontal segment sand washing operation of high quality.Electric submersible pump unit 8 is a kind of centrifugal multistage pump multiple centrifugal pump, with row
Water pipe 5 puts into underground work together, drives multistage centrifugal impeller of pump to generate rotation by motor, constantly that down-hole liquid is upward
It is lifted to ground 3.
The upper end of the protective casing 2 is connected with produced water treatment equipment 9 and land drainage pipeline 10.The air collecting pipe 4
Upper end be connected with ground gas-liquid separator 11, wind turbine 12, ground steam line 13 in turn.After down-hole liquid is lifted to ground 3,
Through produced water treatment equipment 9, land drainage pipeline 10 is transported to.It is carried out further into ground gas-liquid separator 11 after gas extraction
Dehydration.The exhaust pipe of gas-liquid separator wind turbine 12 in succession, the free gas of underground is pumped out rapidly by wind turbine 12, right
Underground is depressured, and improves flowing velocity of the gas in air collecting pipe 4, enhances its fluid-carrying capability.Treated, and natural gas is defeated
Toward steam line.
In the present embodiment, space out predetermined elevation is provided with the first detecting liquid level part and the second liquid on the drainpipe 5
Face detection part.Specifically, the first detecting liquid level part or the second detecting liquid level part can be the form of level sensor, use
Whether there is liquid in detection precalculated position.The first detecting liquid level part, the second detecting liquid level part specific installation position can be with
It carries out according to the actual needs, the application does not make specific limit herein.For example, superposed first detecting liquid level part can
To be determined according to stable outlet point in well；The second detecting liquid level part positioned at lower part can be arranged in the position of hole stability.Its
In, it is not in position phenomena such as caving in, miss that the position of the hole stability, which refers specifically to the wellbore in gas production process,.
When specific works, lower two detecting liquid level parts, the first detecting liquid level part are installed in 5 certain position of drainpipe
It is drained when detecting liquid level, drainpipe 5 can carry out up and down at this time, make shaking out in well that can be pumped.It takes out
Terminate to draw water (when i.e. the second detecting liquid level part detects lower liquid level) when water drops to the producing pressure differential maximum value of control to liquid level, into
Row gas generation.So alternately produce.
In one embodiment, which further includes controller, which can set
It sets on ground 3.The controller and the first detecting liquid level part, the second detecting liquid level part, electric submersible pump unit 8, ground gas
Liquid/gas separator 11, wind turbine 12 are electrically connected, and the controller can open the electric submersible pump unit 8 according to first liquid level signal
It is drained；The electric submersible pump unit 8 is closed according to second liquid level signal and stops draining, and starts the ground gas-liquid point
From device 11, wind turbine 12, gas generation is carried out.
Horizontal well water pumping gas production completion tubular column provided herein, by the way that the technology set in horizontal well vertical well section is arranged
Pipe 2；Slotted liner 1 in horizontal well net horizontal section is set, and the slotted liner 1 is suspended on the protective casing 2, the water
Horizontal well section is for being arranged in combustible ice payzone 6；The air collecting pipe 4 being arranged in the protective casing 2, under the air collecting pipe 4
End is located at 6 top of the combustible ice payzone, and the upper end of the air collecting pipe 4 is for being fixed on ground 3；It is arranged in the horizontal well
The lower end of interior mobilizable drainpipe 5, the drainpipe 5 is located in the horizontal segment, and predetermined height is spaced on the drainpipe 5
Degree is provided with the first detecting liquid level part and the second detecting liquid level part, in use, the first detecting liquid level part detects liquid level
Shi Jinhang is drained, and drainpipe 5 can carry out up and down at this time, make shaking out in well that can be pumped.Second detecting liquid level part
When detecting lower liquid level, terminate to draw water, carries out gas generation.It so alternately produces, has started the level of combustible ice exploitation
The new technology of well water pumping gas production can be carried out efficiently combustible ice exploitation.
Referring to Fig. 2, for the horizontal well water pumping gas production completion tubular column that the above embodiment provides, the application embodiment
In correspondingly provide a kind of production method, this method may include steps of：
Step S10：Obtain the first liquid level signal of the first detecting liquid level part；According to first liquid level signal unlatching
Electric submersible pump unit 8 is drained, the up and down drainpipe 5 in draining；
Step S12：Obtain the second liquid level signal of the second detecting liquid level part；According to second liquid level signal closing
Electric submersible pump unit 8 stops draining, carries out gas generation.
In the present embodiment, the concrete structure of horizontal well water pumping gas production completion tubular column and composition please refer to horizontal well draining
The specific descriptions of gas production completion tubular column embodiment, specifically, details are not described herein by the application.
When being produced using the horizontal well water pumping gas production completion tubular column, two liquid up and down being arranged on drainpipe 5 is utilized
Face detection part, the first detecting liquid level part are drained when detecting liquid level, and drainpipe 5 can carry out work up and down at this time
It is dynamic, make shaking out in well that can be pumped.(i.e. the second detecting liquid level when the producing pressure differential maximum value for dropping to control of drawing water to liquid level
When part detects lower liquid level) terminate to draw water, carry out gas generation.It so alternately produces, has started the water of combustible ice exploitation
The new technology of horizontal well water pumping gas production can be carried out efficiently combustible ice exploitation.
Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed herein, including patent application and publication, for various purposes by helping
Draw and is hereby incorporated by.Describe combination term " substantially by ... constitutes " should including identified element, ingredient, component or step with
And other elements, ingredient, component or step essentially without the basic novel feature for influencing the combination.Use term "comprising"
Or " comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, portion
The embodiment that part or step are constituted.Here by using term " can with ", it is intended to illustrate described that " can with " includes
What attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used for
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiment difference.
The foregoing is merely several embodiments of the invention, although disclosed herein embodiment it is as above, institute
Content is stated only to facilitate the embodiment for understanding the present invention and using, is not intended to limit the present invention.Any institute of the present invention
Belong to those skilled in the art, do not depart from disclosed herein spirit and scope under the premise of, can be in embodiment
Formal and details on make any modification and variation, but the scope of patent protection of the present invention still must be with appended claims
Subject to the range that book is defined.
Claims (10)
1. a kind of horizontal well water pumping gas production completion tubular column, which is characterized in that
Protective casing in horizontal well vertical well section is set；
Slotted liner in horizontal well net horizontal section is set, and the slotted liner is suspended on the protective casing, the level
Well section is for being arranged in combustible ice payzone；
Air collecting pipe in the protective casing is set, and the lower end of the air collecting pipe is located above the combustible ice payzone, described
The upper end of air collecting pipe is for fixing on the ground；
The lower end of the mobilizable drainpipe being arranged in the horizontal well, the drainpipe is located in the horizontal segment, described
Space out predetermined elevation is provided with the first detecting liquid level part and the second detecting liquid level part on drainpipe.
2. horizontal well water pumping gas production completion tubular column as described in claim 1, which is characterized in that the drainpipe is by continuously managing
Manufactured movable pipe.
3. horizontal well water pumping gas production completion tubular column as claimed in claim 2, which is characterized in that the lower end of the drainpipe is successively
It is provided with sand washing connector, electric submersible pump unit.
4. horizontal well water pumping gas production completion tubular column as claimed in claim 3, which is characterized in that the electric submersible pump unit is multistage
Centrifugal pump comprising：Submersible motor, protector and electric submersible pump.
5. horizontal well water pumping gas production completion tubular column as described in claim 1, which is characterized in that the slotted liner passes through packing
Device is suspended on the protective casing.
6. horizontal well water pumping gas production completion tubular column as claimed in claim 4, which is characterized in that the upper end of the protective casing connects
It is connected to produced water treatment equipment and land drainage pipeline.
7. horizontal well water pumping gas production completion tubular column as described in claim 1, which is characterized in that the upper end of the air collecting pipe is successively
It is connected with ground gas-liquid separator, wind turbine, ground steam line.
8. horizontal well water pumping gas production completion tubular column as claimed in claim 7, which is characterized in that further include controller, the control
Device processed electrically connects with the first detecting liquid level part, the second detecting liquid level part, electric submersible pump unit, ground gas-liquid separator, wind turbine
It connects, the controller can open the electric submersible pump unit according to first liquid level signal and be drained；According to second liquid
Electric submersible pump unit described in the signal-off of face stops draining, and starts the ground gas-liquid separator, wind turbine, carries out gas generation.
9. a kind of production method based on horizontal well water pumping gas production completion tubular column according to any one of claims 8, which is characterized in that packet
It includes：
Obtain the first liquid level signal of the first detecting liquid level part；According to first liquid level signal open the electric submersible pump unit into
Row draining, the up and down drainpipe in draining；
Obtain the second liquid level signal of the second detecting liquid level part；The electric submersible pump unit is closed according to second liquid level signal to stop
It only drains, carries out gas generation.
10. production method as claimed in claim 9, which is characterized in that the first level detection part is located at second liquid
The top of face detection part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810101692.7A CN108386167A (en) | 2018-02-01 | 2018-02-01 | Horizontal well water pumping gas production completion tubular column and production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101692.7A CN108386167A (en) | 2018-02-01 | 2018-02-01 | Horizontal well water pumping gas production completion tubular column and production method |
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| CN108386167A true CN108386167A (en) | 2018-08-10 |
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| CN201810101692.7A Pending CN108386167A (en) | 2018-02-01 | 2018-02-01 | Horizontal well water pumping gas production completion tubular column and production method |
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Application publication date: 20180810 |