CN202074231U - Natural gas gathering and delivering system for natural gas fields - Google Patents
Natural gas gathering and delivering system for natural gas fields Download PDFInfo
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- CN202074231U CN202074231U CN2011200481681U CN201120048168U CN202074231U CN 202074231 U CN202074231 U CN 202074231U CN 2011200481681 U CN2011200481681 U CN 2011200481681U CN 201120048168 U CN201120048168 U CN 201120048168U CN 202074231 U CN202074231 U CN 202074231U
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Abstract
A natural gas gathering and delivering system for natural gas fields comprises a gas gathering supercharging facility and a plurality of gas gathering valve units. Gas inlet ends of each gas gathering valve unit are in operably fluid communication with various wellheads of the natural gas fields via gas production pipelines, and are in operably fluid communication with gas outlet ends of another gas gathering valve unit via gas gathering pipelines, the gas outlet ends of at least one of the gas gathering valve units are in operably fluid communication with a gas inlet end of the gas gathering supercharging facility via the gas gathering pipelines, the gas outlet ends of the other gas gathering valve units are in operably fluid communication with the gas inlet ends of the other gas gathering valve unit via the gas gathering pipelines, a gas outlet end of the gas gathering supercharging facility is in operably fluid communication with a gas gathering delivering pipeline, so that supercharged natural gas can be delivered outwards. The natural gas gathering and delivering system enhances flexibility and adaptability of plans for station layout and is particularly suitable for large-scale low-pressure low-yield natural gas field subjected to rolling development.
Description
Technical field
The utility model relates generally to the industrial gas oil technology, relates to the gas gathering and transportation system that is used for gas field particularly.
Background technique
The domestic and international at present existing gathering-transferring technology at low pressure, low yield gas field mainly contains two kinds: a kind of is the gathering-transferring technology that disperses boosted junction intersection gas metering station; Another kind is a gathering-transferring technology of concentrating boosted junction intersection gas metering station.Derive the mode of some other types, for example individual well compression system, satellite compression system and center compression system etc. by these two kinds of technology.
In the actual production in industrial gas oil field, there are a lot of gas fields to belong to the large-scale natural gas field of typical low hole, hypotonic, low yield, low abundance, low saturation, low pressure.These gas fields belong to the marginal benefit gas field, the geological condition complexity, and anisotropy is strong, and well yield is low, and pressure decline speed is fast, production rate-maintenance capability is poor, and the development ﹠ construction difficulty is big.
For example, for certain actual gas field, the area in an one cooperation district, wellblock is about 542 km
2, find that with new layer its gas-bearing area also is about 542 km by expanding the limit exploration
2, gas reserves is about 1066.88 * 10
8m
3Shi Ji gas field if adopt depleted formula step-down exploitation technology, builds up and produces 10 * 10 per year hereto
8m
3The gas production ability, can stable yields 10 years.Typically, the discarded condition of this gas field is: the well head abandonment pressure is about 1.0 MPa, and abandonment rate is about 0.2 * 10
4m
3/ d.In this gas field exploitation, characteristics at hypotonic low yield, the well pattern of about 600 m * 1200 m is adopted in drilling well, about more than 700 mouthfuls of gas well of building together, according to the well station pipeline distance of CNS " oil-gas gathering and transportation design code " 50350 regulations, it is about more than 25% that this will make the construction investment volume increase.
The model utility content
Therefore,, be necessary to study a kind of novel gas gathering and transportation technology,, improve the whole economic efficiency of engineering to greatest extent to reduce construction investment at deficiency of the prior art.Further, this gas gathering and transportation technology will be applicable to the characteristics of the gas field of marginal benefit, not only can be applicable to the surface construction of large-scale low pressure, low yield, hypotonic gas field, and extend in the surface gathering system construction of high pressure high yield gas field.
For this reason, the utility model provides a kind of gas gathering and transportation system that is used for gas field, it is characterized in that comprising gas collection supercharging facility and a plurality of gas collection valve group, wherein each inlet end of each described gas collection valve group via each well head of gas production pipeline and gas field operationally fluid be communicated with, and/or via the outlet side of collecting pipe and another gas collection valve group operationally fluid be communicated with; The outlet side that has a gas collection valve group in the described gas collection valve group at least via the inlet end of collecting pipe and described gas collection supercharging facility operationally fluid be communicated with, and the outlet side of remaining set air valve group via the inlet end of collecting pipe and another gas collection valve group operationally fluid be communicated with; And the outlet side of described gas collection supercharging facility and gas collection multi-purpose station pipeline operationally fluid be communicated with, so that the rock gas after the supercharging is outwards carried.
Preferably, described gas gathering and transportation system also comprises the liquefaction facility that rock gas is liquefied, described liquefaction facility via the outlet side of described gas collection multi-purpose station pipeline and described gas collection supercharging facility operationally fluid be communicated with.
Preferably, at least one in gas production pipeline, collecting pipe and the gas collection multi-purpose station pipeline is polyethylene pipe or steel pipe.More preferably, gas production pipeline and collecting pipe are polyethylene pipe, and the gas collection multi-purpose station pipeline is a steel pipe; Perhaps the gas production pipeline is a polyethylene pipe, and collecting pipe and gas collection multi-purpose station pipeline are steel pipe.
Preferably, each described gas collection valve group has 40-100 inlet end.
This " node " technology that gas gathering and transportation of the present utility model system is adopted has strengthened the flexibility and the adaptability of gathering system cloth station scheme, is particularly useful for large-scale low pressure, the low yield gas field of rolling development.The pipe network of this gas gathering and transportation system is dendritic layout, is beneficial to enlarging, and it is defeated to be convenient to collection; And defeated outside supercharging is concentrated in the central position, not only energy-saving effect is remarkable, and has significantly reduced the quantity and the operational administrative personnel of gas gathering station, is convenient to management, is highly suitable for being in the outlying gas field in the rugged environment such as desert.Further, this gas gathering and transportation of the present utility model system can reduce construction investment significantly, and the range of decrease can reach more than 25%.
Description of drawings
Fig. 1 is the schematic representation according to an embodiment's of the utility model gas gathering and transportation system.
Fig. 2 is the schematic representation according to the gas gathering and transportation system of a specific embodiment of the utility model, has wherein indicated the throughput direction of rock gas with arrow.
Embodiment
Referring to Fig. 1 and Fig. 2, the gas gathering and transportation system that is used for gas field of the present utility model comprise be used for to rock gas concentrate the gas collection supercharging facility 2-1 and being used for of pressurization to compile rock gas scalably and compile the most at last after a plurality of gas collection valve group 1-1 of the gas collection supercharging facility 2-1 that gives of natural gas transport, 1-n(wherein n is a positive integer more than or equal to 2, represents the maximum quantity of gas collection valve group).Preferably, the center position of one or more blocks only is provided with a gas collection supercharging facility 2-1 in gas field, and investment and cost of production are reduced greatly.
All gas collection valve group 1-1, part or all of inlet end in each inlet end of 1-n or wherein a part of gas collection valve group can via each well head of corresponding gas production pipeline 10 separately and gas field operationally fluid be communicated with so that from each well head, gather rock gas.And the part or all of inlet end of some gas collection valve group can via the outlet side of the collecting pipe of another gas collection valve group and another gas collection valve group operationally fluid be communicated with, the rock gas from lower floor's gas collection valve group is compiled once more.
Gas collection valve group 1-1, the outlet side that has a gas collection valve group (for example gas collection valve group 1-1,1-2,1-3,1-4,1-5,1-6,1-7, the 1-8 shown in Fig. 2) among the 1-n at least via the inlet end of separately collecting pipe 20 and described gas collection supercharging facility 2-1 operationally fluid be communicated with, be transported to gas collection supercharging facility 2-1 with himself pressure of the gas utilization that will compile and concentrate supercharging.The outlet side of remaining set air valve group (for example gas collection valve group 1-9,1-10,1-11,1-12,1-13 and the 1-14 shown in Fig. 2) can via the inlet end of corresponding collecting pipe separately and another gas collection valve group operationally fluid be communicated with, the rock gas that oneself is compiled finally is transported to gas collection supercharging facility 2-1 after the one or many by upper strata gas collection valve group compiles again again.The outlet side of gas collection supercharging facility 2-1 and gas collection multi-purpose station pipeline 30 operationally fluid are communicated with, so that the rock gas after the supercharging is outwards carried.Those skilled in the art also will be appreciated that gas collection supercharging facility 2-1 in the utility model except that having gas collection, function of increasing pressure, also can dispose proper device therein and realize functions such as handing-over metering.
In a further preferred embodiment, gas gathering and transportation of the present utility model system also comprises the liquefaction facility 3-1 that liquefies to through the rock gas after the gas collection supercharging facility 2-1 supercharging.Liquefaction facility 3-1 via the outlet side of gas collection multi-purpose station pipeline 30 and gas collection supercharging facility 2-1 operationally fluid be communicated with, with the rock gas after the reception supercharging.
Preferably, for example in the gas field of one 1,000,000,000 side's production capacity, gas gathering and transportation of the present utility model system distributes according to these gas field characteristics, well head and concrete application factor such as topographic feature can be provided with 14 gas collection valve groups, gas collection supercharging facility 2-1(for example gas collection booster station or gas collection delivery) and optional liquefaction facility 3-1(LNG station for example), as shown in Figure 2.In this example of practical application, the gas that comes of each well head at first enters gas collection valve group via the gas production pipeline, each gas collection valve group administration about 40-100 mouth gas well (this means that each gas collection valve group can have 40-100 inlet end); The gas that comes of gas collection valve each individual well that group is had jurisdiction over enters the collecting pipe of this gas collection valve group then, and utilizes the rock gas that self pressure can will compile to transport to gas collection supercharging facility (or claiming processing station); After gas collection supercharging facility carries out pressurized treatment, pass through outside the gas collection multi-purpose station pipeline defeated.This example can unattended duty at well head and gas collection valve group place, only need adopt the mode of regular fast inspection to carry out daily production management.Compare with traditional gas gathering station scheme, this gas gathering and transportation of the present utility model system can reduce construction investment more than 25%.
Cloth station scheme shown in Figure 2 has realized that the multiple spot of rock gas inserts, flexible gathering and transferring process.This technology utilizes flexible arrangement, the simple gas collection valve of technology group to replace traditional gas gathering station, has effectively reduced the individual well investment, has enlarged the defeated radius of collection simultaneously, the gas gathering and transportation radius is risen to adopt more than 3 times of traditional gathering-transferring technology.
In addition, those skilled in the art also should recognize, in the utility model, adopt the gas collection valve group of any suitable quantity according to actual needs, can adopt n gas collection valve group, wherein n can be 2-1000 or wider in arbitrary integer, for example 2,10,15,20,30,40 or the like.
Preferably, at least one in gas production pipeline 10, collecting pipe 20 and the gas collection multi-purpose station pipeline 30 is polyethylene pipe or steel pipe.More preferably, gas production pipeline and collecting pipe are polyethylene pipe, and the gas collection multi-purpose station pipeline is a steel pipe; Perhaps the gas production pipeline is a polyethylene pipe, and collecting pipe and gas collection multi-purpose station pipeline are steel pipe, can save the pipeline cost of investment to greatest extent satisfying under the situation of usage requirement like this.For example, adopt, the nominal diameter of collecting pipe is during smaller or equal to 250mm or smaller or equal to 240mm or smaller or equal to 200mm, the preferred PE(polyethylene that uses) the pipeline material grade is the polyethylene pipe of PE100, and at nominal diameter greater than 250mm, or during greater than 300mm or greater than 320mm, preferably use steel pipe.
Can find out according to above-mentioned each embodiment, under the situation that does not break away from the utility model spirit and scope, can make various variations and change the utility model.Therefore, those skilled in the art will be appreciated that all each feature described herein and shown in the drawings and details all are illustrative, and nonrestrictive.
Claims (6)
1. a gas gathering and transportation system that is used for gas field is characterized in that comprising gas collection supercharging facility and a plurality of gas collection valve group, wherein
Each inlet end of each described gas collection valve group via each well head of gas production pipeline and gas field operationally fluid be communicated with, and/or via the outlet side of collecting pipe and another gas collection valve group operationally fluid be communicated with;
The outlet side that has a gas collection valve group in the described gas collection valve group at least via the inlet end of collecting pipe and described gas collection supercharging facility operationally fluid be communicated with, and the outlet side of remaining set air valve group via the inlet end of collecting pipe and another gas collection valve group operationally fluid be communicated with; And
The outlet side of described gas collection supercharging facility and gas collection multi-purpose station pipeline operationally fluid are communicated with, so that the rock gas after the supercharging is outwards carried.
2. gas gathering and transportation according to claim 1 system is characterized in that, also comprises the liquefaction facility that rock gas is liquefied, described liquefaction facility via the outlet side of described gas collection multi-purpose station pipeline and described gas collection supercharging facility operationally fluid be communicated with.
3. gas gathering and transportation according to claim 1 system is characterized in that at least one in gas production pipeline, collecting pipe and the gas collection multi-purpose station pipeline is polyethylene pipe or steel pipe.
4. gas gathering and transportation according to claim 3 system is characterized in that gas production pipeline and collecting pipe are polyethylene pipe, and the gas collection multi-purpose station pipeline is a steel pipe.
5. gas gathering and transportation according to claim 3 system is characterized in that the gas production pipeline is a polyethylene pipe, and collecting pipe and gas collection multi-purpose station pipeline are steel pipe.
6. gas gathering and transportation according to claim 1 system is characterized in that each described gas collection valve group has 40-100 inlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200481681U CN202074231U (en) | 2011-02-25 | 2011-02-25 | Natural gas gathering and delivering system for natural gas fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200481681U CN202074231U (en) | 2011-02-25 | 2011-02-25 | Natural gas gathering and delivering system for natural gas fields |
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|---|---|
| CN202074231U true CN202074231U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200481681U Expired - Fee Related CN202074231U (en) | 2011-02-25 | 2011-02-25 | Natural gas gathering and delivering system for natural gas fields |
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| CN (1) | CN202074231U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777767A (en) * | 2012-08-08 | 2012-11-14 | 中国海洋石油总公司 | Dry and wet natural gas combined transportation energy metering and distributing method and system |
| CN105402603A (en) * | 2014-08-18 | 2016-03-16 | 中油辽河工程有限公司 | Ground gathering and transferring system applicable to shale gas and tight gas |
| CN112053029A (en) * | 2020-07-28 | 2020-12-08 | 中国石油天然气股份有限公司 | Classification and classification method for gas production pipeline management of natural gas field |
-
2011
- 2011-02-25 CN CN2011200481681U patent/CN202074231U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777767A (en) * | 2012-08-08 | 2012-11-14 | 中国海洋石油总公司 | Dry and wet natural gas combined transportation energy metering and distributing method and system |
| CN102777767B (en) * | 2012-08-08 | 2014-07-02 | 中国海洋石油总公司 | Dry and wet natural gas combined transportation energy metering and distributing method and system |
| CN105402603A (en) * | 2014-08-18 | 2016-03-16 | 中油辽河工程有限公司 | Ground gathering and transferring system applicable to shale gas and tight gas |
| CN105402603B (en) * | 2014-08-18 | 2018-01-02 | 中油辽河工程有限公司 | A kind of surface gathering system for being applied to shale gas and tight gas |
| CN112053029A (en) * | 2020-07-28 | 2020-12-08 | 中国石油天然气股份有限公司 | Classification and classification method for gas production pipeline management of natural gas field |
| CN112053029B (en) * | 2020-07-28 | 2024-03-08 | 中国石油天然气股份有限公司 | Classification and classification method for natural gas field gas production pipeline management |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20170225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |