CN208473726U - Water pumping gas production tubing string - Google Patents
Water pumping gas production tubing string Download PDFInfo
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- CN208473726U CN208473726U CN201821010334.7U CN201821010334U CN208473726U CN 208473726 U CN208473726 U CN 208473726U CN 201821010334 U CN201821010334 U CN 201821010334U CN 208473726 U CN208473726 U CN 208473726U
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Abstract
The utility model provides a kind of water pumping gas production tubing string, comprising: casing, oil pipe and production tree；Oil pipe is set in inside pipe casing, and the first annular region is formed between oil pipe and casing；The first end of oil pipe and the first end of casing is arranged in production tree, and the second end of oil pipe and the second end of casing are respectively positioned below the liquid level of the hydrops of oil and gas reservoir；The oil outlet of oil pipe is connected to the inlet on the outlet tube road of production tree, and outlet tube road is used for the hydrops being discharged in oil and gas reservoir；First annular region is connected to the air inlet of the outlet pipe of production tree, and outlet pipe is used to acquire the gas in oil and gas reservoir.The utility model can be realized the production of the water pumping gas production of the low gas well containing salinity, improve gas production and gas well utilization rate, and reduce production cost.
Description
Technical field
The utility model relates to oil extraction in oil field technical field of engineering equipment more particularly to a kind of water pumping gas production tubing strings.
Background technique
With going deep into for gas exploitation, the quantity for being discharged gas field is more and more.There is condensed liquid hydrops in pure gas well
Initial stage, in the case that strata pressure is relatively high, hydrops, which reaches a certain level rear gas well, can take hydrops out of by self-energy.
Gas well phase after manufacture, since strata pressure, gas well deliverability decline, temperature in wellbore gradient increases, because temperature decline cause it is natural
Fractions in gas in pit shaft condensation and form condensed liquid, and gas well gas production is not enough to take out of the part condensed liquid
When, condensed liquid is just fallen after rise to shaft bottom, generates wellbore effusion.Therefore with the decline of gas pressure, the intrusion and condensation of water flooding
The precipitation of water greatly affects the yield and production capacity of gas reservoir.
Production method currently used for hydrops gas well mainly has following three kinds, the first is using packer, and Fig. 1 is existing
The structural schematic diagram of the oil country tubular good for being provided with packer in technology.Referring to shown in attached drawing 1, Authorization Notice No. is
The Chinese utility model patent of CN204140122U discloses a kind of oil well drainage arrangement, and the device is in the same oil country tubular good 1
Multiple packers 2 are set, to form multiple closed areas in the oil country tubular good 1, the water layer in oil country tubular good is individually insulated,
And drained by water pump, to improve the quality and yield of oil recovery.It is directly using suction pump in second, Fig. 2 is existing
The structural schematic diagram of the oil country tubular good for being provided with suction pump in technology.Referring to shown in attached drawing 2, Authorization Notice No. is
The Chinese invention patent of CN107060696A discloses a kind of pneumatic water drainage gas production device and its application method, and wherein the device includes
The casing 3 being arranged in gas well, casing 3 is interior to be arranged gas production tubing string 4, and several pneumatic drainings are arranged in gas production tubing string 4 and adopt
Air pump 5.Using the original natural aerodynamic force in stratum, 5 jet streams are pumped by pneumatic water pumping gas production and are atomized the liquid into, becomes low-density, easily
The foam-like fluid of carrying, is repeatedly transported to land drainage gas production.The third is using surfactant, and Authorization Notice No. is
The Chinese invention patent of CN105114046A discloses a kind of energization type foam drainage gas recovery technique, by by the note in well in batches
Enter chemical agent, chemical reaction occurs in well and generates a large amount of gas and foam for chemical agent, and foam moves up discharge pit shaft product
Liquid, to improve the gas deliverability of gas well.
However the method for setting packer and suction pump is required to that multiple components are arranged into well in above-mentioned method, increases
The cost of water pumping gas production.And gas and hydrops are flowed out by same oil country tubular good, increase the workload of subsequent gas-liquid separation.
And it adds surfactant and also needs to purify subsequent oil gas, therefore above-mentioned method is used for the efficiency of water pumping gas production
It is lower.
Utility model content
In order to solve the problems, such as at least one mentioned in background technique, the utility model provides a kind of water pumping gas production tubing string,
It can be realized the production of the water pumping gas production of the low gas well containing salinity, improve gas production and gas well utilization rate, and reduce production cost.
To achieve the goals above, the utility model provides a kind of water pumping gas production tubing string, comprising: casing, oil pipe and oil recovery
Tree.
The oil pipe is set in inside described sleeve pipe, and the first annular region is formed between the oil pipe and described sleeve pipe；Institute
It states production tree and the first end of the oil pipe and the first end of described sleeve pipe is set, the second end of the oil pipe and described sleeve pipe
Second end is respectively positioned below the liquid level of the hydrops of oil and gas reservoir.
The oil outlet of the oil pipe is connected to the inlet on the outlet tube road of the production tree, and the outlet tube road is for arranging
Hydrops in oil and gas reservoir out.
First annular region is connected to the air inlet of the outlet pipe of the production tree, and the outlet pipe is for adopting
Collect the gas in oil and gas reservoir.
In above-mentioned water pumping gas production tubing string, optionally, outlet tube road is provided with the first control valve, and described the
One control valve is for regulating and controlling the opening and closing on the outlet tube road and the flow velocity of the hydrops in the outlet tube road.
In above-mentioned water pumping gas production tubing string, optionally, it is provided with the second control valve on the outlet pipe, described
Two control valves are for regulating and controlling the opening and closing of the outlet pipe and the flow velocity of the gas in the outlet pipe.
In above-mentioned water pumping gas production tubing string, optionally, first pressure detection dress is additionally provided in the outlet tube road
It sets and first flow detection device；
The first pressure detection device is used to detect the pressure value in the oil pipe, and the first flow detection device is used
The flow of the hydrops on the outlet tube road is flowed through in detection.
In above-mentioned water pumping gas production tubing string, optionally, second pressure detection dress is additionally provided in the outlet pipe
It sets and second flow detection device.
The second pressure detection device is used to detect the pressure value in first annular region, the second flow inspection
Device is surveyed for detecting the flow for flowing through the gas in the outlet pipe.
In above-mentioned water pumping gas production tubing string, optionally, which further includes intermediate casing, the centre
Casing is arranged between described sleeve pipe and the oil pipe, and the outer wall of the oil pipe and the inner wall of the intermediate casing form described the
One annular region, the outer wall of the intermediate casing and the inner wall of described sleeve pipe form the second annular region, second annular space area
Filled with well cementation filler in domain.
In above-mentioned water pumping gas production tubing string, optionally, which further includes control device, the control
Device and first control valve, second control valve, the first pressure detection device and second pressure detection device
It is electrically connected.
The pressure value in the oil pipe that the control device is used to be detected according to the first pressure detection device, and
Pressure value in first annular region of second pressure detection device detection controls first control valve and described
The opening degree of second control valve.
In above-mentioned water pumping gas production tubing string, optionally, the control device includes input unit, the input unit
Input for receiving user instructs, to control the opening degree of first control valve and second control valve.
In above-mentioned water pumping gas production tubing string, optionally, which further includes gas-liquid separator, the gas
Liquid/gas separator is connected to the liquid outlet on the outlet tube road, for separating the gas in hydrops.
In above-mentioned water pumping gas production tubing string, optionally, the outlet tube road is additionally provided with ball-and-seat, single stream
Liquid outlet of the circulating direction of valve towards the outlet tube road.
Water pumping gas production tubing string provided by the utility model, by setting casing and the oil pipe that inside pipe casing is arranged in, and
Production tree is arranged in the end of the two the same end, and the end of the two other end is immersed in the hydrops of oil and gas reservoir.Pass through adjusting set
The pressure value in the first annular region and oil pipe between pipe and oil pipe, so that hydrops drains into outlet tube road by returning in oil pipe
In, while gas is exported by the first annular region into outlet pipe, to realize the mesh of gas and the acquisition of hydrops branch pipeline
, the workload of subsequent gas-liquid separation is reduced, simplifies operating process and reduces number of devices used in operating process, greatly
The cost of water pumping gas production is saved greatly.Gas production and gas well utilization rate are improved simultaneously.By the way that control device and input unit is arranged,
Control device and air outlet pipe and control valve and pressure-detecting device electric connection in outlet tube road, it is long-range so as to realize
The working condition on outlet tube road and outlet pipe is controlled, to greatly reduce artificial workload, improves water pumping gas production process
Control precision.
The construction of the utility model and its other purpose of utility model and beneficial effect will be in conjunction with the accompanying drawings
Description of preferred embodiments and it is more obvious and easy to understand.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is made simply to introduce, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the oil country tubular good in the prior art for being provided with packer；
Fig. 2 is the structural schematic diagram of the oil country tubular good in the prior art for being provided with suction pump；
Fig. 3 is the structural schematic diagram for the water pumping gas production tubing string that the utility model embodiment one provides；
Fig. 4 is the structural representation that hydrops rises in the oil pipe for the water pumping gas production tubing string that the utility model embodiment one provides
Figure；
Fig. 5 is the structural schematic diagram for the water pumping gas production tubing string that the utility model embodiment two provides；
Fig. 6 is the structural representation for the water pumping gas production tubing string for being provided with input unit that the utility model embodiment two provides
Figure.
Description of symbols:
1- oil country tubular good；
2- packer；
3- casing；
4- gas production tubing string；
The pneumatic water pumping gas production pump of 5-；
10- casing；
The first annular region of 11-；
20- oil pipe；
The second annular region of 21-；
30- outlet tube road；
The first control valve of 31-；
32- first pressure detection device；
33- first flow detection device；
34- ball-and-seat；
40- outlet pipe；
The second control valve of 41-；
42- second pressure detection device；
43- second flow detection device；
50- hydrops；
60- oil and gas reservoir；
70- intermediate casing；
80- control device；
81- input unit；
90- gas-liquid separator.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with the excellent of the utility model
The attached drawing in embodiment is selected, the technical scheme in the embodiment of the utility model is further described in more detail.In the accompanying drawings, certainly
Begin to indicate same or similar component or component with the same or similar functions to same or similar label eventually.It is described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Below with reference to the implementation of attached drawing description
Example is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.It is practical based on this
Embodiment in novel, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, is fallen within the protection scope of the utility model.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should broadly understood, for example, can make to be fixedly connected, be also possible to through the indirect phase of intermediary
Even, the connection inside two elements or the interaction relationship of two elements be can be.For the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Embodiment one
Fig. 3 is the structural schematic diagram for the water pumping gas production tubing string that the utility model embodiment one provides.Fig. 4 is the utility model
The structural schematic diagram that hydrops rises in the oil pipe for the water pumping gas production tubing string that embodiment one provides.
Referring to shown in attached drawing 3 and attached drawing 4, the utility model embodiment one provides a kind of water pumping gas production tubing string, which adopts
Tracheae column is mainly used for the exploitation of the oil and gas reservoir containing hydrops.Wherein gas well in process of production, due to strata pressure, gas well
Production capacity decline, temperature in wellbore gradient increase, because temperature decline cause the fractions in natural gas in pit shaft condensation due to formed
Condensed liquid, and when gas well gas production is not enough to take out of the part condensed liquid, condensed liquid is just fallen after rise to shaft bottom, generates pit shaft product
Liquid.Therefore with the decline of gas pressure, the intrusion of water flooding and precipitations of condensation water greatly affect the yield of gas reservoir with
Production capacity.
Production method currently used for hydrops gas well mainly has using packer, is arranged in the same oil country tubular good multiple
Water layer in oil country tubular good is individually insulated, and pass through water pump by packer with forming multiple closed areas in the oil country tubular good
It is drained, to improve the quality and yield of oil recovery.Or suction pump is directly used, using the original natural aerodynamic force in stratum,
Jet stream is pumped by pneumatic water pumping gas production to atomize the liquid into, and is become low-density, portable foam-like fluid, is repeatedly transported to ground
Face water pumping gas production.But setting packer and suction pump improve the cost of water pumping gas production, increase the complicated journey of operating process
Degree.Also or surfactant is used, by the way that by the injection chemical agent in well in batches, chemistry occurs in well for chemical agent
Reaction generates a large amount of gas and foam, foam move up discharge wellbore effusion, to improve the gas deliverability of gas well, and adds table
Face activating agent also needs to purify subsequent oil gas, therefore the efficiency of water pumping gas production is lower.
In order to solve the above technical problems, the water pumping gas production tubing string that the present embodiment one provides may include: casing 10, oil pipe 20
And production tree.
Oil pipe 20 is set in inside casing 10, and the first annular region 11 is formed between oil pipe 20 and casing 10；Production tree sets
The first end of the first end and casing 10 in oil pipe 20 is set, the second end of oil pipe 20 and the second end of casing 10 are respectively positioned on oil gas storage
Below the liquid level of the hydrops 50 of layer 60.
The oil outlet of oil pipe 20 is connected to the inlet on the outlet tube road 30 of production tree, and outlet tube road 30 is for being discharged oil gas
Hydrops 50 in reservoir 60.
First annular region 11 is connected to the air inlet of the outlet pipe 40 of production tree, and outlet pipe 40 is for acquiring oil gas
Gas in reservoir 60.
It should be noted that the principle of " linker ", i.e. oil pipe 20 is utilized in water pumping gas production tubing string provided in this embodiment
First end with casing 10 is attached upper end shown in Fig. 3, and upper end connects production tree, and the lower end of the two is respectively positioned on oil and gas reservoir 60
Below the liquid level of hydrops 50, i.e., the lower end of the two is immersed in hydrops 50 simultaneously, and is interconnected, and hydrops 50 can be in 10 He of casing
It is flowed in oil pipe 20, therefore forms similar " linker " structure.
During water pumping gas production, due to the gas overflowing in oil and gas reservoir 60, it is gathered in 20 He of oil pipe 20 and oil pipe
In the first annular region 11 that casing 10 is surrounded, controls gas pressure in the first annular region 11 and be greater than the gas in oil pipe 20
Pressure, liquid level under the action of gas pressure of the hydrops 50 in the first annular region 11 declines at this time.Due to oil pipe 20 and first
The lower section of annular region 11 is connected to, therefore hydrops 50 assembles liquid level rising in oil pipe 20, passes through control oil pipe 20 and the first ring
Pressure difference in empty region 11, so that hydrops 50 be made endlessly to be expelled in outlet tube road 30 from oil pipe 20.In attached drawing 4
Gas is spread to top and bottom after arrow in first annular region 11 indicates pressure increase, and the arrow in oil pipe 20 then indicates
Hydrops 50 rises.
It is important to note that water pumping gas production tubing string provided in this embodiment is only from two respectively by hydrops 50 and gas
Vertical pipeline discharge, can greatly reduce the workload of subsequent gas-liquid separation process, improve gas purity.
Further, referring to shown in attached drawing 3, oil pipe 20 can be connected to outlet tube road 30, the first annular region 11 with out
Air pipe 40 is connected to, and outlet pipe 40 can be set all the way or two-way shown in figure, the present embodiment to this and it is without restriction.
Further, the first control valve 31 is provided on outlet tube road 30, the first control valve 31 is for regulating and controlling outlet tube road
The flow velocity of hydrops 50 in 30 opening and closing and outlet tube road 30.
Be provided with the second control valve 41 on outlet pipe 40, the second control valve 41 for regulate and control the opening and closing of outlet pipe 40 with
And the flow velocity of the gas in outlet pipe 40.
It should be noted that being also respectively provided with the first control in outlet tube road 30 provided in this embodiment and outlet pipe 40
Valve 31 processed and the second control valve 41 control outlet tube road 30 and outlet pipe 40 by the first control valve 31 and the second control valve 41
Opening and closing and the wherein flow velocity of hydrops 50 and gas, to realize the pressure in control oil pipe 20 and the first annular region 11
Value.
Further, first pressure detection device 32 and first flow detection device 33 are additionally provided in outlet tube road 30；
First pressure detection device 32 is used to detect the pressure value in oil pipe 20, and first flow detection device 33 is for detecting
Flow through the flow of the hydrops 50 on outlet tube road 30.
Second pressure detection device 42 and second flow detection device 43 are additionally provided in outlet pipe 40.
Second pressure detection device 42 is used to detect the pressure value in the first annular region 11, second flow detection device 43
For detecting the flow for flowing through the gas in outlet pipe 40.
It should be noted that first flow detection device 33 and are respectively set in outlet tube road 30 and outlet pipe 40
One pressure-detecting device 32 and second flow monitoring device and second pressure detection device 42, can be to 30 He of outlet tube road
The real time monitoring of hydrops 50 and gas process of circulation parameter in outlet pipe 40 is the first control valve 31 and the second control valve 41
Foundation is instructed in opening and closing and the control of opening degree offer.
As an alternative embodiment, the water pumping gas production tubing string further includes intermediate casing 70, intermediate casing 70 is arranged
Between casing 10 and oil pipe 20, the outer wall of oil pipe 20 and the inner wall of intermediate casing 70 form the first annular region 11, intermediate sleeve
The outer wall of pipe 70 and the inner wall of casing 10 form the second annular region 21, and well cementation filler is filled in the second annular region 21.
It should be noted that provided in this embodiment referring to shown in attached drawing 4, intermediate casing 70 provided in this embodiment and set
Pipe 10, which surrounds the fixation filler filled in the second annular region 21, can be cement and/or floating bead, and the present embodiment is to this and is not added
To limit.
Further, which further includes gas-liquid separator 90, gas-liquid separator 90 and outlet tube road 30
Liquid outlet connection, for separating the gas in hydrops 50.
Due to gas of the hydrops 50 still mixed with part in oil pipe 20, it is therefore desirable to carry out gas-liquid separation, gas to hydrops 50
Liquid separation after gas can be passed through in outlet pipe 40, to improve the purity of gas.
Further, it is additionally provided with ball-and-seat 34 on outlet tube road 30, the circulating direction of ball-and-seat 34 is towards outlet tube road
30 liquid outlet prevents hydrops 50 from flowing back.
The water pumping gas production tubing string that the utility model embodiment one provides by setting casing 10 and is arranged inside casing 10
Oil pipe 20, and the end of the two the same end be arranged production tree, the end of the two other end is immersed in the product of oil and gas reservoir 60
In liquid 50.By the first annular region 11 between adjusting sleeve pipe 10 and oil pipe 20 and the pressure value in oil pipe 20, so that product
Liquid 50 is drained into outlet tube road 30 by returning in oil pipe 20, while gas is exported by the first annular region 11 into outlet pipe 40,
To realize the purpose of gas and the acquisition of 50 branch pipeline of hydrops, the workload of subsequent gas-liquid separation is reduced, simplification operated
Number of devices used in journey and reduction operating process, is greatly saved the cost of water pumping gas production.Simultaneously improve gas production and
Gas well utilization rate.
Embodiment two
Fig. 5 is the structural schematic diagram for the water pumping gas production tubing string that the utility model embodiment two provides.Fig. 6 is the utility model
The structural schematic diagram for the water pumping gas production tubing string for being provided with input unit that embodiment two provides.
Referring to shown in attached drawing 5 and attached drawing 6, on the basis of the above embodiment 1, the utility model embodiment two is also provided
The water pumping gas production tubing string of another structure, embodiment two are: embodiment two compared with embodiment one in place of the difference of the two
Water pumping gas production tubing string increases control device 80.
Specifically, the water pumping gas production tubing string further includes control device 80, control device 80 and the first control valve 31, second are controlled
Valve 41, first pressure detection device 32 and second pressure detection device 42 processed are electrically connected.
The pressure value and the second pressure in oil pipe 20 that control device 80 is used to be detected according to first pressure detection device 32
The pressure value in the first annular region 11 that force checking device 42 detects, the first control valve 31 of control and the second control valve 41 are opened
It is right.
Further, control device 80 includes input unit 81, and input unit 81 is used to receive the input instruction of user, with
Control the opening degree of the first control valve 31 and the second control valve 41.
It should be noted that the control cabinet that the control device 80 can be positioned at construction site is either located at Administrative Area
Control system, the parameters on outlet tube road 30 and outlet pipe 40 can be carried out on the spot or far by control device 80
The acquisition of journey, and according to various parameter values, the opening degree of certain first control valve 31 and the second control valve 41, to realize on the spot
Or remotely control the course of work of the water pumping gas production tubing string.
Wherein input unit 81 can be one of keyboard, touch screen and voice-input device or a variety of, this implementation
Example is to this and is not limited, and is also not limited to above-mentioned example.
Other technical characteristics are the same as example 1, and can reach identical technical effect, and this is no longer going to repeat them.
The water pumping gas production tubing string that the utility model embodiment two provides by setting casing 10 and is arranged inside casing 10
Oil pipe 20, and the end of the two the same end be arranged production tree, the end of the two other end is immersed in the product of oil and gas reservoir 60
In liquid 50.By the first annular region 11 between adjusting sleeve pipe 10 and oil pipe 20 and the pressure value in oil pipe 20, so that product
Liquid 50 is drained into outlet tube road 30 by returning in oil pipe 20, while gas is exported by the first annular region 11 into outlet pipe 40,
To realize the purpose of gas and the acquisition of 50 branch pipeline of hydrops, the workload of subsequent gas-liquid separation is reduced, simplification operated
Number of devices used in journey and reduction operating process, is greatly saved the cost of water pumping gas production.Simultaneously improve gas production and
Gas well utilization rate.By setting control device 80 and input unit 81, in control device 80 and air outlet pipe and outlet tube road 30
Control valve and pressure-detecting device be electrically connected, so as to realize the work on long-range control outlet tube road 30 and outlet pipe 40
Make state, to greatly reduce artificial workload, improves the control precision of water pumping gas production process.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "vertical", " water
It is flat ", "top", "bottom", "inner", the orientation of the instructions such as "outside" or positional relationship be that orientation based on the figure or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply signified device or element
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.?
In the description of the utility model, the meaning of " plurality " is two or more, accurately specifically provide unless otherwise.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be to remove
Sequence other than those of illustrating or describe herein is implemented.In addition, term " includes " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, production
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for this
A little process, methods, the other step or units of product or equipment inherently.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of water pumping gas production tubing string characterized by comprising casing, oil pipe and production tree；
The oil pipe is set in inside described sleeve pipe, and the first annular region is formed between the oil pipe and described sleeve pipe；It is described to adopt
Oil tree is arranged in the first end of the oil pipe and the first end of described sleeve pipe, and the second of the second end of the oil pipe and described sleeve pipe
End is respectively positioned below the liquid level of the hydrops of oil and gas reservoir；
The oil outlet of the oil pipe is connected to the inlet on the outlet tube road of the production tree, and the outlet tube road is for being discharged oil
Hydrops in gas reservoir；
First annular region is connected to the air inlet of the outlet pipe of the production tree, and the outlet pipe is for acquiring oil
Gas in gas reservoir.
2. water pumping gas production tubing string according to claim 1, which is characterized in that the outlet tube road is provided with the first control
Valve, first control valve is for regulating and controlling the opening and closing on the outlet tube road and the flow velocity of the hydrops in the outlet tube road.
3. water pumping gas production tubing string according to claim 2, which is characterized in that be provided with the second control on the outlet pipe
Valve, second control valve is for regulating and controlling the opening and closing of the outlet pipe and the flow velocity of the gas in the outlet pipe.
4. water pumping gas production tubing string according to claim 3, which is characterized in that be additionally provided with the first pressure in the outlet tube road
Force checking device and first flow detection device；
The first pressure detection device is used to detect the pressure value in the oil pipe, and the first flow detection device is for examining
The flow of hydrops of the flow measurement through the outlet tube road.
5. water pumping gas production tubing string according to claim 4, which is characterized in that be additionally provided with the second pressure in the outlet pipe
Force checking device and second flow detection device；
The second pressure detection device is used to detect the pressure value in first annular region, the second amount detection device
It sets for detecting the flow for flowing through the gas in the outlet pipe.
6. water pumping gas production tubing string according to any one of claim 1-3, which is characterized in that it further include intermediate casing, institute
It states intermediate casing to be arranged between described sleeve pipe and the oil pipe, the outer wall of the oil pipe and the inner wall of the intermediate casing are formed
First annular region, the outer wall of the intermediate casing and inner wall the second annular region of formation of described sleeve pipe, described second
Filled with well cementation filler in annular region.
7. water pumping gas production tubing string according to claim 5, which is characterized in that it further include control device, the control device
It is electrical with first control valve, second control valve, the first pressure detection device and second pressure detection device
Connection；
The control device is used to be detected according to the first pressure detection device in the oil pipe pressure value and described
Pressure value in first annular region of second pressure detection device detection, controls first control valve and described second
The opening degree of control valve.
8. water pumping gas production tubing string according to claim 7, which is characterized in that the control device includes input unit, institute
It states input unit and is instructed for receiving the input of user, to control the folding of first control valve and second control valve
Degree.
9. water pumping gas production tubing string according to any one of claim 1-3, which is characterized in that it further include gas-liquid separator,
The gas-liquid separator is connected to the liquid outlet on the outlet tube road, for separating the gas in hydrops.
10. water pumping gas production tubing string according to any one of claim 1-3, which is characterized in that the outlet tube road is also
It is provided with ball-and-seat, the liquid outlet of the circulating direction of the ball-and-seat towards the outlet tube road.
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| CN201821010334.7U CN208473726U (en) | 2018-06-28 | 2018-06-28 | Water pumping gas production tubing string |
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| CN201821010334.7U CN208473726U (en) | 2018-06-28 | 2018-06-28 | Water pumping gas production tubing string |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397424A (en) * | 2019-07-11 | 2019-11-01 | 中国石油工程建设有限公司 | A kind of deep water gas hydrates production system and method based on decompression exploitation |
| CN112780239A (en) * | 2020-12-30 | 2021-05-11 | 西南石油大学 | Water pressurization and rush drainage device for water-drive gas reservoir flooding well |
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2018
- 2018-06-28 CN CN201821010334.7U patent/CN208473726U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397424A (en) * | 2019-07-11 | 2019-11-01 | 中国石油工程建设有限公司 | A kind of deep water gas hydrates production system and method based on decompression exploitation |
| CN110397424B (en) * | 2019-07-11 | 2024-05-31 | 中国石油工程建设有限公司 | Deep water natural gas hydrate production system and method based on depressurization exploitation |
| CN112780239A (en) * | 2020-12-30 | 2021-05-11 | 西南石油大学 | Water pressurization and rush drainage device for water-drive gas reservoir flooding well |
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