CN104948136B - A kind of flow line pigging system based on big collecting well group - Google Patents
A kind of flow line pigging system based on big collecting well group Download PDFInfo
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- CN104948136B CN104948136B CN201510339546.4A CN201510339546A CN104948136B CN 104948136 B CN104948136 B CN 104948136B CN 201510339546 A CN201510339546 A CN 201510339546A CN 104948136 B CN104948136 B CN 104948136B
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Abstract
The invention provides a kind of flow line pigging system based on big collecting well group, including be sequentially arranged between gas well and gas gathering station on flow line pigging dispensing device, pigging reception device.The of the invention hydrops and solid impurity effectively removed in pipeline, improves pipeline transmission capacity, reduces operating cost, ensures conduit running safety, need not stop the supple of gas or steam during pigging, improve pipeline operation efficiency；Pigging dispensing device, pigging reception device skid, floor space is small, it is easy to operate, easy to maintain, investment it is low.
Description
Technical field
The invention belongs to the gas transmission technology field of cluster well, and in particular to a kind of air collecting pipe based on big collecting well group
Line pigging system.
Background technology
The natural gas line of current domestic pigging is generally bigbore gas gathering line and gas transmission line.Most domestic list
Well is 1 × 10 with yield4m3~10 × 104m3, to reduce investment outlay, flow line economic velocity is 4m/s~10m/s, gas production
Pipeline specification is DN50~DN150, and hydrops is taken liquid band by unstripped gas and gone out in pipeline, it is not necessary to pigging；The high tolerance gas well in part
Flow line also has application, typically using wiper receiving ball tube as main pigging facility.
Big cluster well is because of many advantages such as its ground area is small, management point is few, construction cost is low and in Gas field construction comprehensively
Promote.Big cluster well builds 16~20 implication wells, the high 6MPa~10MPa of well group pressure early stage, yield height in 1 well site（34
×104m3~112 × 104m3）, flow line specification is DN200~DN350, because its gas production is big, the bar of identical gas liquid ratio
Under part, Liquid output is consequently increased.It is 1m according to gas liquid ratio3Water/104m3Gas, it is contemplated that the flow line liquid measure of 16 mouthfuls of collecting well groups
112 m3, by the defeated efficiency of strong influence pipe.
The content of the invention
The purpose of the present invention is in the case of ensureing that big well clump throwing postpartum is safe for operation, and big well clump unstripped gas is passed through into gas production
Pipeline safety is transferred to gas gathering station, improves pipeline operation efficiency.
Therefore, the invention provides a kind of flow line pigging system based on big collecting well group, including be sequentially arranged in big
Pigging dispensing device, pigging reception device between collecting well group and gas gathering station on flow line；
The pigging dispensing device is made up of the first by-passing valve, pigging sphere-lok, two the first ball valves, the pigging service
Valve both ends are connected in parallel with the first by-passing valve after first ball valve respectively, and the pigging reception device is by the second by-passing valve, clear
Pipe receives ball valve, two the second ball valves composition, the pigging sphere-lok both ends connect respectively after second ball valve with the second bypass
Valve is in parallel.
Including the urgent block valve of well head on the flow line between pigging dispensing device and pigging reception device and station
The urgent block valve in field.
The pigging dispensing device and pigging reception device are skid-mounted device.
The gas gathering station is provided with gas-liquid separator.
The big collecting well group is made up of 16~20 mouthfuls of natural gas wells.
The beneficial effects of the invention are as follows：This flow line pigging system based on big collecting well group provided by the invention,
The hydrops and solid impurity in pipeline are effectively removed, improves pipeline transmission capacity, reduces operating cost, ensures conduit running peace
Entirely, it need not be stopped the supple of gas or steam during pigging, improve pipeline operation efficiency；Pigging dispensing device, pigging reception device skid, take up an area face
Product it is small, it is easy to operate, easy to maintain, investment it is low.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1st, big collecting well group；2nd, pigging dispensing device；3rd, the urgent block valve of well head；4th, flow line；5th, yard is tight
Anxious block valve；6th, pigging reception device；7th, gas gathering station；8th, natural gas well；9th, natural gas header；10th, the first by-passing valve；11、
Pigging sphere-lok；12nd, the first ball valve；13rd, the second by-passing valve；14th, pigging receives ball valve；15th, the second ball valve.
Embodiment
Embodiment 1：
A kind of flow line pigging system based on big collecting well group is present embodiments provided, including is sequentially arranged in great Cong formulas
Pigging dispensing device 2, pigging reception device 6 between well group and gas gathering station 7 on flow line 4；
Wherein, pigging dispensing device 2 is made up of 11, two the first by-passing valve 10, pigging sphere-lok the first ball valves 12, pigging
Connect respectively in parallel with the first by-passing valve 10 after first ball valve 12 in the both ends of sphere-lok 11；Pigging reception device 6 is by by second
Port valve 13, pigging are received 14, two the second ball valves 15 of ball valve and formed, and the both ends of pigging sphere-lok 11 are connected second ball valve 15 respectively
It is in parallel with the second by-passing valve 13 afterwards.
Big collecting well group 1 is made up of 16~20 mouthfuls of natural gas wells 8, when 4 normal operation of flow line, natural gas header
9 the natural gas line of the gas well in big collecting well group 1 is collected after be connected with pigging dispensing device 2.During normal operation, the is closed
One ball valve 12, natural gas transport to gas gathering station 7 after the first by-passing valve 10 on flow line 4, the second by-passing valve 13 successively.
When needing to carry out pigging operation, the first by-passing valve 10 is first closed, two the first ball valves 12 is opened, leather cup is put into
In pigging sphere-lok 11, leather cup is promoted in flow line 4 from the natural gas of big collecting well group 1, away from the distance of gas gathering station 7 compared with
Closely（500m~1000m）When, the second by-passing valve 13 is closed, opens the second ball valve 15, leather cup is promoted pigging to receive dress by natural gas
Put in 6, pigging terminates.After pigging, close the second ball valve 15, open the secondth by-passing valve 13, take out leather cup.
Pigging dispensing device 2 and pigging reception device 6 are skid-mounted device in the present embodiment.The gas production that the present embodiment provides
The pigging system of pipeline 4 need not stop the supple of gas or steam with flow line 4 using compared with receiving ball tube pigging process, during pigging, it is not necessary to set
Drain, floor space is small, easy to operate, and management is convenient, and device is simple, improves pipeline transmission capacity, reduces operating cost.
Embodiment 2：
On the basis of embodiment 1, a kind of air collecting pipe based on big collecting well group as shown in Figure 1 is present embodiments provided
Line pigging system, including it is sequentially arranged in pigging dispensing device 2, well head between big collecting well group and gas gathering station 7 on flow line 4
Urgent block valve 3, the urgent block valve 5 of yard, pigging reception device 6.
When 4 normal operation of flow line, natural gas header 9 converges the natural gas line of the gas well in big collecting well group 1
It is connected after collection with pigging dispensing device 2.During normal operation, the first ball valve 12 is closed, natural gas is successively by flow line 4
Gas gathering station 7 is transported to after the urgent block valve 3 of first by-passing valve 10, well head, the urgent block valve 5 of yard, the second by-passing valve 13.
When needing to carry out pigging operation, the first by-passing valve 10 is first closed, two the first ball valves 12 is opened, leather cup is put into
In pigging sphere-lok 11, leather cup is promoted from the natural gas of big collecting well group 1, by the urgent block valve 3 of well head, flow line 4,
Closer to the distance away from gas gathering station 7（500m~1000m）When, the second by-passing valve 13 is closed, opens the second ball valve 15, natural gas promotes
Leather cup passes through the urgent block valve 5 of yard, leather cup is promoted in pigging reception device 6, pigging terminates.After pigging, the is closed
Two ball valves 15, the secondth by-passing valve 13 is opened, take out leather cup.
Embodiment 3：
On the basis of embodiment 1, gas gathering station 7 is provided with gas-liquid point in the pigging system of flow line 4 that the present embodiment provides
From device.
Big collecting well group 1 is made up of 16~20 mouthfuls of natural gas wells 8, when 4 normal operation of flow line, natural gas header
9 the natural gas line of the gas well in big collecting well group 1 is collected after be connected with pigging dispensing device 2.During pigging operation, first close
First by-passing valve 10, two the first ball valves 12 are opened, leather cup are put into pigging sphere-lok 11, from the day of big collecting well group 1
Right gas promotes leather cup, by the urgent block valve 3 of well head, flow line 4, closer to the distance away from gas gathering station 7（500m~1000m）
When, the second by-passing valve 13 is closed, opens the second ball valve 15, natural gas promotes leather cup to pass through the urgent block valve 5 of yard, leather cup is pushed away
Enter in pigging reception device 6, pigging terminates.The solid impurity and hydrops for cleaning flow line 4 carry out gas-liquid point in gas gathering station 7
From rear, downstream processes are transported to.After pigging, close the second ball valve 15, open the secondth by-passing valve 13, take out leather cup.
In summary, the present invention has the following advantages compared with flow line uses receiving ball tube pigging process：1st, face is taken up an area
Product is small；2nd, it is easy to operate；3rd, management is convenient；4th, device is simple；The 5th, drain need not be set；6th, need not be stopped the supple of gas or steam during pigging,
The hydrops and solid impurity in pipeline are effectively removed, improves pipeline transmission capacity, reduces operating cost, ensures conduit running peace
Entirely；7th, the impurity and hydrops in flow line 4 are cleaned, is mainly separated in the gas-liquid separator in gas gathering station 7, and is received and dispatched
In ball collecting chamber intracavitary, small part, which enters in gas-liquid separator, to be separated for ball cylinder pipe cleaning device, impurity and hydrops major storage.
The present embodiment belongs to the common knowledge and known technology of the art without the part specifically described, herein not
Another one describes in detail.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (2)
- A kind of 1. flow line pigging system based on big collecting well group, it is characterised in that：Including being sequentially arranged in big collecting well group （1）With gas gathering station（7）Between flow line（4）On pigging dispensing device（2）, pigging reception device（6）；The pigging dispensing device（2）By the first by-passing valve（10）, pigging sphere-lok（11）, two the first ball valves（12）Composition, The pigging sphere-lok（11）Both ends are connected first ball valve respectively（12）Afterwards with the first by-passing valve（10）Parallel connection, the pigging Reception device（6）By the second by-passing valve（13）, pigging receive ball valve（14）, two the second ball valves（15）Composition, the pigging service Valve（11）Both ends are connected second ball valve respectively（15）Afterwards with the second by-passing valve（13）It is in parallel；Also include being located at pigging dispensing device（2）With pigging reception device（6）Between flow line（4）On well head promptly block Valve（3）With the urgent block valve of yard（5）, the pigging dispensing device（2）With pigging reception device（6）It is skid-mounted device, institute State gas gathering station（7）Provided with gas-liquid separator.
- A kind of 2. flow line pigging system based on big collecting well group according to claim 1, it is characterised in that：It is described Big collecting well group（1）By 16~20 mouthfuls of natural gas wells（8）Composition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510339546.4A CN104948136B (en) | 2015-06-18 | 2015-06-18 | A kind of flow line pigging system based on big collecting well group |
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| CN201510339546.4A CN104948136B (en) | 2015-06-18 | 2015-06-18 | A kind of flow line pigging system based on big collecting well group |
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| CN104948136B true CN104948136B (en) | 2018-03-13 |
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| CN108716382B (en) * | 2018-05-16 | 2020-10-09 | 中国海洋石油集团有限公司 | Automatic pipe cleaning system for deepwater underwater pipeline |
| CN110159219B (en) * | 2019-06-03 | 2024-03-15 | 西安长庆科技工程有限责任公司 | Concatenation type gas well group connecting device and application method thereof |
| CN110863795A (en) * | 2019-10-30 | 2020-03-06 | 中国石油天然气股份有限公司 | Method for removing accumulated liquid of ground pipeline through high-pressure air source |
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| RU2155860C1 (en) * | 2000-03-03 | 2000-09-10 | Общество с ограниченной ответственностью фирма "Каскад" | Device for cleaning of pipe internal furnace from asphalt-resin-paraffin accumulations in wells |
| CN102167204A (en) * | 2010-02-26 | 2011-08-31 | 自贡新地佩尔阀门有限公司 | Pipeline cleaning device and method for protecting covered floating roof tank |
| CN202207685U (en) * | 2011-09-24 | 2012-05-02 | 王庆普 | High-efficient energy-saving oil-collecting ball receiving and delivering integrated device |
| CN102927451B (en) * | 2011-12-07 | 2014-01-01 | 天津大学 | Method for detecting tiny leakage of oil transmission pipeline |
| CN104633389B (en) * | 2015-01-28 | 2016-09-14 | 西安长庆科技工程有限责任公司 | A kind of movably wiper transmitting-receiving skid-mounted unit |
| CN204729059U (en) * | 2015-06-18 | 2015-10-28 | 西安长庆科技工程有限责任公司 | A kind of flow line pigging system based on large collecting well group |
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