CN205297485U - Gas production tubular column is annotated in layering of gas storage storehouse - Google Patents
Gas production tubular column is annotated in layering of gas storage storehouse Download PDFInfo
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- CN205297485U CN205297485U CN201521116903.2U CN201521116903U CN205297485U CN 205297485 U CN205297485 U CN 205297485U CN 201521116903 U CN201521116903 U CN 201521116903U CN 205297485 U CN205297485 U CN 205297485U
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Abstract
The utility model provides a gas production tubular column is annotated in layering of gas storage storehouse, wherein, gas production tubular column is annotated in layering of gas storage storehouse adopts the nest of tubes including at least two sets of notes that connect gradually from top to bottom, and each is annotated the inside of adopting the nest of tubes and is linked together to form and is used for annotating the passageway of gas production, is equipped with the warm -pressing monitoring devices who is used for measuring in the passageway temperature and pressure in the passageway, and warm -pressing monitoring devices's upper end extends to the outside of passageway, each notes is adopted the nest of tubes and all including the packer and notes producing string that connect gradually, is equipped with a plurality of perforating holes that are used for annotating the gas production on each pipe wall of annotating producing string respectively from top to bottom. The utility model provides a gas production tubular column is annotated in layering of gas storage storehouse separates each reservoir through each packer for the natural gas can only be followed the passageway and got into each reservoir by each perforating hole of annotating on the producing string, has realized the even notes gas production of each reservoir, has improved the gas storage volume and the gas production efficiency in gas storage storehouse, thereby has promoted the economic benefits in gas storage storehouse.
Description
Technical field
This utility model relates to gas storage note production gas technology field, particularly to a kind of gas storage demixing injection-production trachea post.
Background technology
Laying in strategic requirement according to national energy at present, domestic multiple oil fields are carried out gas storage note and are adopted project, it is intended that the natural gas that extraction is superfluous is stored in underground, utilize the natural bounded reservoir in underground to replace ground storage tank, thus being substantially reduced carrying cost and risk. But, the gas storage injection-production column jacket adopted at present can only monolayer gas injection, monolayer gas production, such injection-production column jacket deposits problem both ways: one is that longitudinally injection uniformity coefficient is poor for reservoir, injection natural gas can only enter height and oozes reservoir and can not enter relatively low permeability reservoir, causes that a large amount of reservoir space is wasted; Two when being extraction natural gas, and natural gas oozes reservoir extraction only by height, and low permeability reservoir supply is poor, have impact on rate of withdrawal, and then has had a strong impact on economic benefit.
Utility model content
The purpose of this utility model is to provide one when gas injection it can be avoided that a large amount of reservoir space waste, can improve the gas storage demixing injection-production trachea post of gas producting rate when gas production.
For reaching above-mentioned purpose, this utility model provides a kind of gas storage demixing injection-production trachea post, it includes the note that at least two groups are from top to bottom sequentially connected with and adopts pipe group, the inside that each described note adopts pipe group is connected and forms passage for noting gas production, being provided with the temperature and pressure monitoring device for measuring described intra passage temperature and pressure in described passage, the upper end of described temperature and pressure monitoring device extends to the outside of described passage; Each described note adopts the Guan Zujun packer including from top to bottom being sequentially connected with and note flow string, and the tube wall of each described note flow string is respectively equipped with multiple through hole for noting gas production.
Gas storage demixing injection-production trachea post as above, wherein, described temperature and pressure monitoring device includes the pressure transmission capillary tube running through described passage, and be arranged on the thermocouple wire within described pressure transmission capillary tube, the upper end of described pressure transmission capillary tube and the upper end of described thermocouple wire and all extend upward described passage.
Gas storage demixing injection-production trachea post as above, wherein, the lower end of described capillary tube is connected to weight linear meter, and described weight linear meter is suspended in the described note of bottom and adopts in pipe group.
Gas storage demixing injection-production trachea post as above, wherein, the described note of bottom is adopted the bottom of pipe group and is connected to plug, and the lower end of described weight linear meter is positioned at the top of described plug.
Gas storage demixing injection-production trachea post as above, wherein, described packer is the packer with bi-directional slip.
Gas storage demixing injection-production trachea post as above, wherein, described packer upper end is connected to insertion and seals pipe.
Gas storage demixing injection-production trachea post as above, wherein, described note on top is adopted the upper end of pipe group and is upwards connected with circulation slide sleeve and storm valve in turn, the inside of described storm valve is all connected with described passage with the inside of described circulation slide sleeve, and the upper end of described temperature and pressure monitoring device is passed described circulation slide sleeve and described storm valve and stretches out described storm valve.
Gas storage demixing injection-production trachea post as above, wherein, described storm valve is connected to for controlling its hydraulic control capillary tube being turned on and off.
Compared with prior art, advantage of the present utility model is as follows:
The gas storage demixing injection-production trachea post that this utility model provides, by each packer, each reservoir is separated, make natural gas can only be entered each reservoir along passage by the through hole on each note flow string, when noting gas production, monitor the temperature and pressure in the real-time sense channel of device by temperature and pressure and regulate the gross area of the through hole respectively noted one to one with each reservoir on flow string, namely scalable enters the note gas production of each reservoir, it is achieved thereby that each reservoir uniformly note gas production, improve gas-storing capacity and the gas production efficiency of gas storage, and then improve the economic benefit of gas storage, in addition, packer has bi-directional slip, ensure gas storage demixing injection-production trachea post carry out note gas production time long-lasting, storm valve ensure that gas storage demixing injection-production trachea post carry out note gas production time safety.
Accompanying drawing explanation
The following drawings is only intended to, in this utility model being schematically illustrated and explaining, not limit scope of the present utility model. Wherein:
Fig. 1 is the structural representation of the gas storage demixing injection-production trachea post provided according to this utility model one embodiment.
Drawing reference numeral illustrates:
1-note adopts pipe group; 11-packer; 12-notes flow string; 121-through hole; 2-temperature and pressure monitoring device; 21-pressure transmission capillary tube; 22-weight linear meter; 3-inserts and seals pipe; 4-circulation slide sleeve; 5-storm valve; 6-reservoir.
Detailed description of the invention
In order to the technical solution of the utility model, purpose and effect are had clearer understanding, in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
As shown in Figure 1, the gas storage demixing injection-production trachea post that this utility model provides includes the note that at least two groups are from top to bottom sequentially connected with and adopts pipe group 1, the inside that each note adopts pipe group 1 is connected the passage formed for noting gas production, being provided with in passage for the temperature and pressure monitoring device 2 of temperature and pressure in Measurement channel, the upper end of temperature and pressure monitoring device 2 extends to the outside of passage; Each note adopts packer 11 and the note flow string 12 that pipe group 1 all includes from top to bottom being sequentially connected with, each tube wall noting flow string 12 is respectively equipped with multiple through hole 121 for noting gas production, specifically, note is adopted reservoir 6 quantity that the quantity of pipe group 1 has according to gas storage and is determined, for example, if gas storage has two reservoirs 6, then gas storage demixing injection-production trachea post just includes two groups of notes being from top to bottom sequentially connected with and adopts pipe group 1;If gas storage has three reservoirs 6, then gas storage demixing injection-production trachea post just includes three groups of notes being from top to bottom sequentially connected with and adopts pipe group 1, if gas storage has four reservoirs 6, then gas storage demixing injection-production trachea post just includes four groups of notes being from top to bottom sequentially connected with and adopts pipe group 1, and respectively note adopts the note flow string 12 of pipe group 1 and each reservoir 6 one_to_one corresponding of gas storage, and by each packer 11, each reservoir 6 is separated, make natural gas can only be entered each reservoir 6 along passage by the through hole 121 on each note flow string 12, wherein, due to flow Q=AV, A is sectional area, V is flow velocity, flow velocity in whole passage is identical, captured area is more big, flow is more big, captured area is more little, flow is more little, therefore, the area sum in the aperture of every reservoir 6 correspondence is the gas orifice size by aperture, so the injection rate of the gross area and each reservoir 6 of adjustable by regulating the through hole 121 on each note flow string 12, when noting gas production, the temperature and pressure in the real-time sense channel of device 2 is monitored by temperature and pressure, and the gross area of through hole 121 on each note flow string 12 is regulated according to testing result, what can realize each reservoir 6 uniformly notes gas production, thus improve gas-storing capacity and the gas production efficiency of gas storage, and then improve the economic benefit of gas storage.
Further, note on top is adopted the upper end of pipe group 1 and is upwards connected with circulation slide sleeve 4 and storm valve 5 in turn, the inside of storm valve 5 is all connected with passage with the inside of circulation slide sleeve 4, the upper end of temperature and pressure monitoring device 2 is through circulation slide sleeve 4 and storm valve 5 and stretches out storm valve 5 and is connected with ground control unit, wherein, storm valve 5 can when down-hole pressure be above the ground level pressure, emergency cut-off, prevent blowout, thus ensure gas storage demixing injection-production trachea post carry out note gas production time safety; The inner sleeve of circulation slide sleeve 4 can move thus realizing the passage closed or connect between oil pipe and annular space under the effect of external force, because the concrete structure of circulation slide sleeve 4 is prior art, it is not described in detail at this, during use, under in pipe, enter sliding sleeve switch instrument by steel wire, make inner sleeve move, cycle operation can be realized, it is thus possible to the down-hole accident such as well kick, blowout is controlled, further ensure gas storage demixing injection-production trachea post carry out note gas production time safety.
Concrete, storm valve 5 is connected to for controlling its hydraulic control capillary tube being turned on and off, namely storm valve 5 adopts ground control, so, the temperature and pressure in the passage that device 2 detects in real time can be monitored according to temperature and pressure, judge that ground controls whether force value meets instructions for use, and adjust geostatic pressure value in time, to ensure safety when gas storage demixing injection-production trachea post carries out note gas production.
As a preferred embodiment of the present utility model, as shown in Figure 1, temperature and pressure monitoring device 2 includes the pressure transmission capillary tube 21 of penetrating via, and it is arranged on the thermocouple wire (not shown) within pressure transmission capillary tube 21, the upper end of pressure transmission capillary tube 21 and the upper end of thermocouple wire all extend upward passage and run through circulation slide sleeve 4 and storm valve 5, during use, the upper end of the upper end of pressure transmission capillary tube 21 and thermocouple wire is connected with ground control unit, utilize capillary tube pressure transmission, temperature and pressure value in thermocouple temperature measurement principle acquisition channel, by ground control unit, testing result is construed to readable normal data, the measurement to downhole temperature and pressure can be realized.
Further, in order to avoid capillary tube is when gas production, move up with the air-flow of natural gas, connect weight linear meter 22 in the lower end of capillary tube, weight linear meter 22 is suspended in the note of bottom and adopts in pipe group 1, and namely weight linear meter 22 is suspended in the note flow string 12 of bottom, thus being effectively ensured capillary tube when noting gas production, will not move with natural gas flow, be always positioned in passage, the temperature and pressure in real-time sense channel.
Further, note in order to reduce bottom is adopted pipe group 1 bottom and is caused the risk of natural gas leaking by the corrosion of down-hole material, note in bottom is adopted the bottom of pipe group 1 and is connected plug, namely plug is connected in the bottom of the note flow string 12 of bottom, the lower end of weight linear meter 22 is positioned at the top of plug, plug is not perishable and cold-resistant, thus extending the service life of the note flow string 12 of bottom.
As a specific embodiment of the present utility model, packer 11 has bi-directional slip and multistage packing element, bi-directional slip enable to packer 11 setting after, duty grappling is reliable, and multistage packing element has good voltage endurance capability, so that the advantage that packer 11 has long service life, and then promote the service life of gas storage demixing injection-production trachea post, it addition, because concrete structure and the operation principle of bi-directional slip and multistage packing element are prior art, be not described in detail at this.
Further, in order to avoid the junction between packer 11 and miscellaneous part leaks natural gas, packer 11 upper end is connected to insertion and seals pipe 3, that is, packer 11 is connected with miscellaneous part by inserting sealing pipe 3, thus being effectively ensured between packer 11 and miscellaneous part the sealing being connected so that natural gas can only be entered each reservoir 6 along passage by the through hole 121 on each note flow string 12.
In a preferred embodiment of the present utility model, it is provided that a kind of gas storage demixing injection-production gas method, gas storage is provided with at least two reservoir, and gas storage demixing injection-production gas method comprises the following steps:
S1: enter the gas storage demixing injection-production trachea post that any of the above-described embodiment provides under in pit shaft, each note flow string and each reservoir one_to_one corresponding of gas storage demixing injection-production trachea post;
S2: the temperature and pressure monitoring device of gas storage demixing injection-production trachea post detects the pressure and temperature in the passage of gas storage demixing injection-production trachea post in real time, and transmits testing result to ground control unit, and ground control unit shows the force value and temperature value that detect;
S3: the force value shown according to ground control unit and temperature value adjust the gross area of the through hole of each note flow string.
The gas storage demixing injection-production gas method that this utility model provides, the gas storage demixing injection-production trachea post that any of the above-described embodiment provides is entered under in pit shaft, monitor the temperature and pressure in the real-time sense channel of device by temperature and pressure and regulate the gross area of the through hole respectively noted one to one with each reservoir on flow string, namely scalable enters the note gas production of each reservoir, it is achieved thereby that each reservoir uniformly note gas production, improve gas-storing capacity and the gas production efficiency of gas storage, and then improve the economic benefit of gas storage.
Further, the force value shown according to ground control unit and temperature value adjust each through hole noting flow string of gas storage demixing injection-production trachea post the gross area particularly as follows:
The force value shown according to ground control unit and temperature value, it is judged that meet the note gas production of current demand, and adjust aperture and/or the quantity of the through hole of each note flow string according to judged result.
Concrete, can adopt and gas storage demixing injection-production trachea post is proposed, the mode of replacing note flow string realizes adjusting the purpose of the gross area of each through hole noting flow string of gas storage demixing injection-production trachea post, can also adopt at each note arranges by the mobile baffle plate closed or open part through hole in pipe, realize adjusting the purpose of the gross area of each through hole noting flow string of gas storage demixing injection-production trachea post by the movement of control baffle plate, certainly, can also realize adjusting the purpose of the gross area of each through hole noting flow string of gas storage demixing injection-production trachea post by other means, do not repeat them here.
Gas storage to have upper and lower two reservoirs below, illustrates the assembling process of the gas storage demixing injection-production trachea post that this utility model provides in conjunction with accompanying drawing:
As it is shown in figure 1, the first step, enter to be followed successively by from top to bottom connected pipes, lower packet 11 and bottom under in pit shaft and be connected to the tubing string of plug bet flow string 12; In tubing string, put into blanking plug, suppress and set lower packet 11 and disengage the connected pipes above lower packet 11; Propose connected pipes, and salvage blanking plug;
Second step, enters to be followed successively by from top to bottom connected pipes, upper packer 11, upper note flow string 12 and inserts the tubing string sealing pipe 3 under in pit shaft; In tubing string, put into blanking plug, suppress and set upper packer 11 and disengage the connected pipes above upper packer 11; Propose connected pipes, and salvage blanking plug;
3rd step, enters under in pit shaft to be followed successively by connected pipes from top to bottom, be connected to the storm valve 5 of hydraulic control capillary tube, circulation slide sleeve, insertion seal the tubing string of pipe 3;
4th step, enters bottom and is connected to the pressure transmission capillary tube 21 of weight linear meter 22 under in the tubing string that above-mentioned connection is complete, weight linear meter 22 hangs above plug, is provided with thermocouple wire in pressure transmission capillary tube 21.
5th step, the force value shown according to ground control unit and temperature value, it is judged that meet the note gas production of current demand, and adjust aperture and/or the quantity of the through hole 121 of each note flow string 12 according to judged result;
When natural gas injection, natural gas is descending from above-mentioned tubing string, is partly into reservoir 6, and another part enters lower reservoir 6;
When adopting natural gas, natural gas flows in above-mentioned tubing string from upper reservoir 6 and lower reservoir 6 respectively, and flows out to ground, completes gas recovery;
When blowout, storm valve 5 controls to close by pressure sensitive or hydraulic control capillary tube, it is achieved downhole closing, improves security performance;
When gas storage demixing injection-production trachea post goes wrong, trip out tubing string step by step according to the backward flow process entering flow process under above-mentioned, can be replaced.
In sum, the gas storage demixing injection-production trachea post that this utility model provides, by each packer, each reservoir is separated, make natural gas can only be entered each reservoir along passage by the through hole on each note flow string, when noting gas production, monitor the temperature and pressure in the real-time sense channel of device by temperature and pressure and regulate the gross area of the through hole respectively noted one to one with each reservoir on flow string, namely scalable enters the note gas production of each reservoir, it is achieved thereby that each reservoir uniformly note gas production, improve gas-storing capacity and the gas production efficiency of gas storage, and then improve the economic benefit of gas storage, in addition, packer has bi-directional slip, ensure gas storage demixing injection-production trachea post carry out note gas production time long-lasting, storm valve ensure that gas storage demixing injection-production trachea post carry out note gas production time safety.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to scope of the present utility model. Any those of ordinary skill in the art, equivalent variations done under the premise without departing from design of the present utility model and principle and amendment, all should belong to the scope of this utility model protection.
Claims (8)
1. a gas storage demixing injection-production trachea post, it is characterised in that
Described gas storage demixing injection-production trachea post includes the note that at least two groups are from top to bottom sequentially connected with and adopts pipe group, the inside that each described note adopts pipe group is connected and forms passage for noting gas production, being provided with the temperature and pressure monitoring device for measuring described intra passage temperature and pressure in described passage, the upper end of described temperature and pressure monitoring device extends to the outside of described passage;
Each described note adopts the Guan Zujun packer including from top to bottom being sequentially connected with and note flow string, and the tube wall of each described note flow string is respectively equipped with multiple through hole for noting gas production.
2. gas storage demixing injection-production trachea post according to claim 1, it is characterised in that
Described temperature and pressure monitoring device includes the pressure transmission capillary tube running through described passage, and is arranged on the thermocouple wire within described pressure transmission capillary tube, and the upper end of described pressure transmission capillary tube and the upper end of described thermocouple wire all extend upward described passage.
3. gas storage demixing injection-production trachea post according to claim 2, it is characterised in that
The lower end of described capillary tube is connected to weight linear meter, and described weight linear meter is suspended in the described note of bottom and adopts in pipe group.
4. gas storage demixing injection-production trachea post according to claim 3, it is characterised in that
The described note of bottom is adopted the bottom of pipe group and is connected to plug, and the lower end of described weight linear meter is positioned at the top of described plug.
5. gas storage demixing injection-production trachea post according to any one of claim 1 to 4, it is characterised in that
Described packer is the packer with bi-directional slip.
6. gas storage demixing injection-production trachea post according to claim 5, it is characterised in that
Described packer upper end is connected to insertion and seals pipe.
7. gas storage demixing injection-production trachea post according to any one of claim 1 to 4, it is characterised in that
Described note on top is adopted the upper end of pipe group and is upwards connected with circulation slide sleeve and storm valve in turn, the inside of described storm valve is all connected with described passage with the inside of described circulation slide sleeve, and the upper end of described temperature and pressure monitoring device is passed described circulation slide sleeve and described storm valve and stretches out described storm valve.
8. gas storage demixing injection-production trachea post according to claim 7, it is characterised in that
Described storm valve is connected to for controlling its hydraulic control capillary tube being turned on and off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116903.2U CN205297485U (en) | 2015-12-29 | 2015-12-29 | Gas production tubular column is annotated in layering of gas storage storehouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521116903.2U CN205297485U (en) | 2015-12-29 | 2015-12-29 | Gas production tubular column is annotated in layering of gas storage storehouse |
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| Publication Number | Publication Date |
|---|---|
| CN205297485U true CN205297485U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521116903.2U Active CN205297485U (en) | 2015-12-29 | 2015-12-29 | Gas production tubular column is annotated in layering of gas storage storehouse |
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| CN (1) | CN205297485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252703A (en) * | 2016-12-27 | 2018-07-06 | 中国石油天然气股份有限公司 | The completion method of hierarchical monitor |
| CN115680553A (en) * | 2021-07-28 | 2023-02-03 | 中国石油天然气股份有限公司 | Packer and gas injection pipe column |
-
2015
- 2015-12-29 CN CN201521116903.2U patent/CN205297485U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252703A (en) * | 2016-12-27 | 2018-07-06 | 中国石油天然气股份有限公司 | The completion method of hierarchical monitor |
| CN115680553A (en) * | 2021-07-28 | 2023-02-03 | 中国石油天然气股份有限公司 | Packer and gas injection pipe column |
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