CN204729059U - A kind of flow line pigging system based on large collecting well group - Google Patents
A kind of flow line pigging system based on large collecting well group Download PDFInfo
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- CN204729059U CN204729059U CN201520422912.8U CN201520422912U CN204729059U CN 204729059 U CN204729059 U CN 204729059U CN 201520422912 U CN201520422912 U CN 201520422912U CN 204729059 U CN204729059 U CN 204729059U
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- flow line
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Abstract
The utility model provides a kind of flow line pigging system based on large collecting well group, comprises pigging dispensing device, the pigging receiving system be located at successively between gas well and gas gathering station on flow line.The utility model effectively removes hydrops in pipeline and solid impurity, improves pipeline transmission capacity, reduces operating cost, ensures conduit running safety, does not need to stop the supple of gas or steam, improve pipeline operation efficiency during pigging; Pigging dispensing device, the skid of pigging receiving system, floor space is little, easy to operate, be easy to safeguard, invest low.
Description
Technical field
The utility model belongs to the gas transmission technology field of cluster well, is specifically related to a kind of flow line pigging system based on large collecting well group.
Background technology
The natural gas line of current domestic pigging is generally bigbore gas gathering line and gas transmission line.The output of joining of most domestic individual well is 1 × 10
4m
3~ 10 × 10
4m
3, for reducing investment outlay, flow line economic velocity is 4m/s ~ 10m/s, and flow line specification is DN50 ~ DN150, and in pipeline, hydrops is taken liquid by unstripped gas and taken out of, does not need pigging; The flow line of the high tolerance gas well of part also has application, is generally main pigging facility with wiper receiving ball tube.
Large cluster well is popularized in an all-round way in Gas field construction because of many advantages such as its ground area are little, management point is few, construction cost is low.Namely large cluster well builds 16 ~ 20 implication wells in 1 well site, and well group pressure height in early stage 6MPa ~ 10MPa, output is high by (34 × 10
4m
3~ 112 × 10
4m
3), flow line specification is DN200 ~ DN350, and because its gas production is large, under the condition of identical gas liquid ratio, Liquid output also increases thereupon.Be 1m according to gas liquid ratio
3water/10
4m
3gas, estimates flow line liquid measure 112 m of 16 mouthfuls of collecting well group
3, the defeated efficiency of pipe will be affected greatly.
Utility model content
The purpose of this utility model is under the large well clump of guarantee throws security of operation situation in postpartum, large well clump unstripped gas is passed through flow line safe transmission to gas gathering station, improves pipeline operation efficiency.
For this reason, the utility model provides a kind of flow line pigging system based on large collecting well group, comprises pigging dispensing device, the pigging receiving system be located at successively between large collecting well group and gas gathering station on flow line;
Described pigging dispensing device is made up of the first bypass valve, pigging sphere-lok, two the first ball valves, described pigging sphere-lok two ends are connected in parallel with the first bypass valve after first ball valve respectively, described pigging receiving system is received ball valve, two the second ball valves by the second bypass valve, pigging and is formed, and described pigging sphere-lok two ends are connected in parallel with the second bypass valve after second ball valve respectively.
Comprise the urgent block valve of well head and the urgent block valve in field of standing be located between pigging dispensing device and pigging receiving system on flow line.
Described pigging dispensing device and pigging receiving system are skid-mounted device.
Described gas gathering station is provided with gas-liquid separator.
Described large collecting well group is made up of 16 ~ 20 mouthfuls of natural gas wells.
The beneficial effects of the utility model are: this flow line pigging system based on large collecting well group that the utility model provides, hydrops in effective removing pipeline and solid impurity, improve pipeline transmission capacity, reduce operating cost, ensure conduit running safety, do not need during pigging to stop the supple of gas or steam, improve pipeline operation efficiency; Pigging dispensing device, the skid of pigging receiving system, floor space is little, easy to operate, be easy to safeguard, invest low.
Be described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, large collecting well group; 2, pigging dispensing device; 3, the urgent block valve of well head; 4, flow line; 5, to stand the urgent block valve in field; 6, pigging receiving system; 7, gas gathering station; 8, natural gas well; 9, natural gas header; 10, the first bypass valve; 11, pigging sphere-lok; 12, the first ball valve; 13, the second bypass valve; 14, ball valve received by pigging; 15, the second ball valve.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of flow line pigging system based on large collecting well group, comprise pigging dispensing device 2, the pigging receiving system 6 be located at successively between large collecting well group and gas gathering station 7 on flow line 4;
Wherein, pigging dispensing device 2 is made up of the first bypass valve 10, pigging sphere-lok 11, two the first ball valves 12, and pigging sphere-lok 11 two ends are connected in parallel with the first bypass valve 10 after first ball valve 12 respectively; Pigging receiving system 6 is received ball valve 14, two the second ball valves 15 by the second bypass valve 13, pigging and is formed, and pigging sphere-lok 11 two ends are connected in parallel with the second bypass valve 13 after second ball valve 15 respectively.
Large collecting well group 1 is made up of 16 ~ 20 mouthfuls of natural gas wells 8, when flow line 4 normally runs, is connected after the natural gas line of the gas well in large collecting well group 1 collects by natural gas header 9 with pigging dispensing device 2.During normal operation, close the first ball valve 12, natural gas transports to gas gathering station 7 successively after the first bypass valve 10, second bypass valve 13 on flow line 4.
When needs carry out pigging operation, first close the first bypass valve 10, open two the first ball valves 12, leather cup is put into pigging sphere-lok 11, in flow line 4, promote leather cup from the natural gas of large collecting well group 1, when apart from gas gathering station 7 close together (500m ~ 1000m), close the second bypass valve 13, open the second ball valve 15, leather cup advances in pigging receiving system 6 by natural gas, and pigging terminates.After pigging, close the second ball valve 15, open the secondth bypass valve 13, take out leather cup.
In the present embodiment, pigging dispensing device 2 and pigging receiving system 6 are skid-mounted device.Compared with flow line 4 pigging system that the present embodiment provides adopts receiving ball tube pigging process with flow line 4, do not need during pigging to stop the supple of gas or steam, do not need to arrange drain, floor space is little, easy to operate, convenient management, device is simple, improves pipeline transmission capacity, reduces operating cost.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of flow line pigging system based on large collecting well group as shown in Figure 1, comprise pigging dispensing device 2, the urgent block valve of well head 3, the urgent block valve 5 in field of standing, the pigging receiving system 6 be located at successively between large collecting well group and gas gathering station 7 on flow line 4.
When flow line 4 normally runs, be connected with pigging dispensing device 2 after the natural gas line of the gas well in large collecting well group 1 collects by natural gas header 9.During normal operation, close the first ball valve 12, natural gas transports to gas gathering station 7 successively after the first bypass valve 10 on flow line 4, the urgent block valve of well head 3, field of standing urgent block valve 5, second bypass valve 13.
When needs carry out pigging operation, first close the first bypass valve 10, open two the first ball valves 12, leather cup is put into pigging sphere-lok 11, leather cup is promoted from the natural gas of large collecting well group 1, through the urgent block valve 3 of well head, flow line 4, when apart from gas gathering station 7 close together (500m ~ 1000m), close the second bypass valve 13, open the second ball valve 15, natural gas promotion leather cup is urgent block valve 5 through field of missing the stop, and advanced by leather cup in pigging receiving system 6, pigging terminates.After pigging, close the second ball valve 15, open the secondth bypass valve 13, take out leather cup.
Embodiment 3:
On the basis of embodiment 1, in flow line 4 pigging system that the present embodiment provides, gas gathering station 7 is provided with gas-liquid separator.
Large collecting well group 1 is made up of 16 ~ 20 mouthfuls of natural gas wells 8, when flow line 4 normally runs, is connected after the natural gas line of the gas well in large collecting well group 1 collects by natural gas header 9 with pigging dispensing device 2.During pigging operation, first close the first bypass valve 10, open two the first ball valves 12, leather cup is put into pigging sphere-lok 11, leather cup is promoted from the natural gas of large collecting well group 1, through the urgent block valve 3 of well head, flow line 4, when apart from gas gathering station 7 close together (500m ~ 1000m), close the second bypass valve 13, open the second ball valve 15, natural gas promotion leather cup is urgent block valve 5 through field of missing the stop, and advanced by leather cup in pigging receiving system 6, pigging terminates.After the solid impurity of cleaning flow line 4 and hydrops carry out gas-liquid separation in gas gathering station 7, transport to downstream.After pigging, close the second ball valve 15, open the secondth bypass valve 13, take out leather cup.
In sum, the utility model has the following advantages: 1, floor space is little compared with adopting receiving ball tube pigging process with flow line; 2, easy to operate; 3, convenient management; 4, device is simple; 5, do not need to arrange drain; 6, do not need during pigging to stop the supple of gas or steam, effectively remove the hydrops in pipeline and solid impurity, improve pipeline transmission capacity, reduce operating cost, ensure conduit running safety; 7, clean the impurity in flow line 4 and hydrops, be separated in the gas-liquid separator mainly in gas gathering station 7, and receiving ball tube pipe cleaning device, impurity and hydrops major storage are in ball collecting chamber chamber, and small part enters in gas-liquid separator and is separated.
The present embodiment does not have specifically described part all to belong to common practise and the known technology of the art, describes in detail no longer one by one herein.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (5)
1. based on a flow line pigging system for large collecting well group, it is characterized in that: comprise pigging dispensing device (2), the pigging receiving system (6) be located at successively between large collecting well group (1) and gas gathering station (7) on flow line (4);
Described pigging dispensing device (2) is made up of the first bypass valve (10), pigging sphere-lok (11), two the first ball valves (12), described pigging sphere-lok (11) two ends first ball valve (12) of connecting respectively is in parallel with the first bypass valve (10) afterwards, described pigging receiving system (6) by the second bypass valve (13), ball valve (14) received by pigging, two the second ball valves (15) form, described pigging sphere-lok (11) two ends second ball valve (15) of connecting respectively is in parallel with the second bypass valve (13) afterwards.
2. a kind of flow line pigging system based on large collecting well group according to claim 1, is characterized in that: also comprise the urgent block valve of well head (3) and the urgent block valve in field (5) of standing be located between pigging dispensing device (2) and pigging receiving system (6) on flow line (4).
3. a kind of flow line pigging system based on large collecting well group according to claim 1, is characterized in that: described pigging dispensing device (2) and pigging receiving system (6) are skid-mounted device.
4. a kind of flow line pigging system based on large collecting well group according to claim 1, is characterized in that: described gas gathering station (7) is provided with gas-liquid separator.
5. a kind of flow line pigging system based on large collecting well group according to claim 1, is characterized in that: described large collecting well group (1) is made up of 16 ~ 20 mouthfuls of natural gas wells (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520422912.8U CN204729059U (en) | 2015-06-18 | 2015-06-18 | A kind of flow line pigging system based on large collecting well group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520422912.8U CN204729059U (en) | 2015-06-18 | 2015-06-18 | A kind of flow line pigging system based on large collecting well group |
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| Publication Number | Publication Date |
|---|---|
| CN204729059U true CN204729059U (en) | 2015-10-28 |
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| CN201520422912.8U Active CN204729059U (en) | 2015-06-18 | 2015-06-18 | A kind of flow line pigging system based on large collecting well group |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948136A (en) * | 2015-06-18 | 2015-09-30 | 西安长庆科技工程有限责任公司 | Gas production pipeline cleaning system based on large cluster type well group |
| CN113356801A (en) * | 2021-07-23 | 2021-09-07 | 中海石油(中国)有限公司 | Arrangement method of glycol recovery device for deep water gas field |
-
2015
- 2015-06-18 CN CN201520422912.8U patent/CN204729059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948136A (en) * | 2015-06-18 | 2015-09-30 | 西安长庆科技工程有限责任公司 | Gas production pipeline cleaning system based on large cluster type well group |
| CN113356801A (en) * | 2021-07-23 | 2021-09-07 | 中海石油(中国)有限公司 | Arrangement method of glycol recovery device for deep water gas field |
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| GR01 | Patent grant |