CN210598955U - Cluster well ground testing device - Google Patents
Cluster well ground testing device Download PDFInfo
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- CN210598955U CN210598955U CN201921466441.5U CN201921466441U CN210598955U CN 210598955 U CN210598955 U CN 210598955U CN 201921466441 U CN201921466441 U CN 201921466441U CN 210598955 U CN210598955 U CN 210598955U
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- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims description 27
- 238000005553 drilling Methods 0.000 claims description 22
- 238000000227 grinding Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 14
- 238000000605 extraction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 5
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a cluster well ground testing arrangement, catch bits unit, desanding unit, step-down reposition of redundant personnel unit, low pressure reposition of redundant personnel unit and separation metering unit including the parallelly connected unit of well head, brill grinds, the parallelly connected unit of well head is connected with the gas production mouth of each individual well in cluster well group, the brill grinds and catches bits unit and the parallelly connected unit connection of well head, the desanding unit catches bits unit connection with the brill mill, step-down reposition of redundant personnel unit respectively with the parallelly connected unit of well head and desanding unit connection, low pressure reposition of redundant personnel unit and step-down reposition of redundant personnel unit connection, separation metering unit and low pressure reposition of redundant personnel unit connection. The utility model discloses can realize that the pit shaft returns that liquid is continuous, efficient separation, measurement, clean recovery, solve among the current cluster well group ground flow back equipment in large quantity, the overall arrangement is unreasonable, take up an area of the big scheduling technical problem of space.
Description
Technical Field
The utility model belongs to the technical field of the well drilling, concretely relates to cluster well ground testing arrangement.
Background
At present, shale gas and other unconventional gas reservoir cluster wells gradually form an integrated deployment and zipper fracturing factory fracturing mode, however, shale gas well ground test operation mainly continues a single well operation mode, and a one-well one-set-flow operation mode is adopted, so that when cluster well group multi-well operation is performed, the ground test flow is complex, the equipment processing capacity is excessive, and the operation efficiency is relatively low; because the ground flow equipment is large in quantity, large in size and multiple in interfaces, the connecting pipeline is generally fixed by adopting a cement-based pier and the ground, so that the equipment is long in installation and removal period; in order to realize the quick installation and removal of ground test equipment, reduce the operation cost, improve the operation benefit and meet the requirements of low cost, industrialization and high-efficiency exploration and development of compact gas reservoirs such as shale gas, more scientific and reasonable ground test technology needs to be researched and developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the above-mentioned problem that exists among the prior art, provide a cluster well ground testing arrangement, the utility model discloses can realize that the pit shaft returns out liquid continuous, efficient separation, measurement, clean recovery, solved among the current cluster well group ground flow back equipment in large quantity, the overall arrangement is unreasonable, take up an area of the big technical problem in space.
In order to achieve the above object, the utility model adopts the following technical scheme:
a cluster well ground testing device which is characterized in that: comprises a wellhead parallel unit, a drilling and grinding chip catching unit, a sand removing unit, a pressure reducing and distributing unit, a low pressure distributing unit and a separating and metering unit,
the wellhead parallel unit is connected with a gas production port of each single well in the cluster well group and is used for realizing simultaneous well opening of each single well, no cross pressure among wells, plug removal after independent fracturing sand plugging of any single well, independent drilling and grinding of any single well and independent high-pressure sand removal of any single well;
the drilling and grinding chip catching unit is connected with the wellhead parallel unit and is used for catching chips of a single well which is reversely connected with a bridge plug to be drilled and ground by the wellhead parallel unit;
the sand removing unit is connected with the drilling and grinding chip catching unit and is used for removing sand from the single well subjected to chip catching;
the pressure reduction and flow distribution unit is respectively connected with the wellhead parallel unit and the desanding unit and used for throttling and reducing pressure of high-pressure fluid discharged by a single well in return and guiding the reduced-pressure fluid into the downstream low-pressure flow distribution unit.
The low-pressure shunting unit is connected with the pressure reduction shunting unit and is used for guiding the flow-back fluid of any single well into the separation metering unit;
the separation metering unit is connected with the low-pressure flow dividing unit and is used for separating and metering the received flowback liquid.
The wellhead parallel unit comprises a manifold group consisting of a plurality of gate valves, the drilling and grinding chip capturing unit is a set of plug capturing device, the desanding unit is a cyclone desander, the depressurization diversion unit comprises a plurality of sets of choke manifold sleds, the low-pressure diversion unit is a set of plug valves, and the separation metering unit comprises a plurality of oil-gas-water three-phase separators; the wellhead parallel unit is respectively connected with the gas production ports of the single wells through a manifold group, and the plug catcher is respectively connected with the manifold group and the cyclone desander; multiple sets of choke manifold sleds are all connected with the plug valve, one set of choke manifold sleds is connected with the cyclone desander, the other choke manifold sleds are all connected with the manifold group, and the number of the other choke manifold sleds is the same as that of the single well; and a plurality of oil-gas-water three-phase separators are connected in parallel and then connected with the plug valve.
The number of the oil-gas-water three-phase separators is the sum of the number of the single wells, and 1 is added after the number of the single wells is divided by 2 to be integrated.
And a hydraulic safety valve is connected between the wellhead parallel unit and the gas production port of each single well.
The nozzle manifold sledge is composed of 4 gate valves and 2 throttling nozzles, and the nozzle manifold sledge is respectively connected with a manifold group, a plug valve and a cyclone desander through the throttling nozzles.
And the outlet end of the cyclone desander is provided with a remote control throttle valve.
Adopt the utility model has the advantages of:
1. the utility model discloses obey "safety, the environmental protection, it is high-efficient, it is stable, in succession, quick" flowing back demand, ground test flow modularization, integrate, the simplification, it is continuous to have realized that the pit shaft returns the liquid, the efficient separation, the measurement, clean the retrieving, the zip fastener formula fracturing test of arbitrary well group of platform well has been realized, the emergent unblock of pit shaft sand blocking, the bits are caught in the drilling plug, well head high pressure degritting, the flowing back is pressed in safe accuse, functions such as continuous synchronous measurement of multiwell group, can satisfy fracturing-row and adopt integration operation needs, and flow equipment quantity significantly reduces than conventional design method (if 6 well group platform well equipment quantity reduces more than in the past more than 40%, equipment utilization improves more than 20%), flow simple to operate is swift, the operating efficiency is showing and improving, the operating cost is showing.
2. The utility model discloses well flow back liquid catches bits through boring the bits ware of catching in the grinding catches the bits unit, and the whirl sand remover degritting in the sand removal unit has realized the preliminary cleanness of flow back fluid again, then installs the clean filter equipment of flow back liquid at separation metering unit rear through leading-in, can realize the fluid that returns filtering more meticulous to satisfy the recycle requirement again. And, the utility model discloses still possess the gas transmission function, can directly transport gas to well site gas transmission sledge.
3. The utility model discloses a remote control choke valve can realize the continuous accuse and press the sand discharge, and the accuse is pressed operating speed and is improved nearly 10 times, and life improves more than 10 times than conventional choke valve, and the security improves greatly.
4. The utility model discloses different functional unit modularization, skid-mounted integrate, connect and dismantle simple and convenient, can insert other functional device in a flexible way, further richen ground test flow function.
Drawings
Fig. 1 is a schematic structural view of the present invention;
labeled as: 1. the device comprises a wellhead parallel unit, a drilling and grinding chip capturing unit, a sand removing unit, a pressure reduction and flow dividing unit, a low-pressure flow dividing unit, a separation metering unit, a gas recovery port and a pressure reduction and flow dividing unit, wherein the wellhead parallel unit comprises 2 a drilling and grinding chip capturing unit, 3 a sand removing unit, 4 a pressure reduction and flow dividing unit, 5 a low-pressure flow dividing.
Detailed Description
The utility model provides a cluster well ground testing arrangement, catch bits unit 2, desanding unit 3, step-down reposition of redundant personnel unit 4, low pressure reposition of redundant personnel unit 5 and separation metering unit 6 including the parallelly connected unit 1 of well head, brill grinding, the relation of connection and the effect of each unit are as follows:
the wellhead parallel unit 1 is connected with the gas production ports 7 of the single wells in the cluster well group and used for achieving the functions that the single wells can be opened simultaneously, no cross pressure exists among the wells, plugging is removed after sand plugging is fractured independently by any single well, chips are captured by drilling and grinding independently by any single well and sand is removed by high pressure independently by any single well.
And the drilling and grinding chip catching unit 2 is connected with the wellhead parallel unit 1 and is used for catching chips of single wells which need drilling and grinding bridge plugs and are reversely connected into the wellhead parallel unit 1.
The sand removing unit 3 is connected with the drilling and grinding chip catching unit 2 and is used for removing sand from the single-well fluid subjected to chip catching, the high-pressure fluid subjected to sand removing enters the pressure reduction and flow distribution unit 4, and sand enters the sewage tank.
The pressure reduction and flow distribution unit 4 is respectively connected with the wellhead parallel unit 1 and the desanding unit 3 and is used for throttling and reducing pressure of high-pressure fluid discharged back from the shaft and the desanding unit 3 and guiding the reduced-pressure fluid into a low-pressure flow distribution unit at the downstream.
And the low-pressure shunting unit 5 is connected with the pressure reduction shunting unit 4 and is used for guiding the return fluid of any single well into the separation metering unit 6.
And the separation metering unit 6 is connected with the low-pressure flow dividing unit 5 and is used for separating and accurately metering the received flowback liquid.
The wellhead parallel unit 1 comprises a manifold group consisting of a plurality of gate valves, the wellhead parallel unit 1 is respectively connected with the gas production ports 7 of the single wells through the manifold group, and a hydraulic safety valve is connected between the wellhead parallel unit 1 and the gas production port 7 of each single well. After the wellhead parallel unit 1 is connected with the gas extraction ports 7 of each single well, the functions of simultaneous well opening of each well on the platform, no cross pressure between wells, plug removal after independent fracturing and sand plugging of any well, independent drilling and grinding and chip capturing of any well and independent high-pressure sand removal of any well are met.
The drilling and grinding chip catching unit 2 is a set of plug catcher, is directly connected with the wellhead parallel unit 1, and is reversely connected into a single well needing drilling and grinding bridge plugs by the wellhead parallel unit 1 to catch chips.
The desanding unit 3 is a 105MPa rotational flow desander which is directly connected to the rear end of the plug catcher. Furthermore, the outlet end of the cyclone desander is provided with a remote control throttle valve. The remote control throttle valve can realize continuous pressure control sand discharge, the pressure control operation speed is improved by nearly 10 times, and the service life is improved by more than 10 times compared with the conventional throttle valve.
The pressure reduction and flow distribution unit 4 comprises a plurality of sets of choke manifold sleds, the number of the choke manifold sleds is the sum of the number of the single wells plus one, the rear ends of the plurality of sets of choke manifold sleds are all connected with the low-pressure flow distribution unit 5, the front end of one set of choke manifold sleds is connected with the cyclone desander, the front ends of the rest of choke manifold sleds are all connected with the manifold assembly, and the number of the rest of choke manifold sleds is the same as the number of the single wells.
Furthermore, the nozzle manifold sledge is composed of 4 gate valves and 2 throttling nozzles, and the nozzle manifold sledge is respectively connected with the manifold group, the plug valve and the cyclone desander through the throttling nozzles.
The low-pressure flow dividing unit 5 is a set of plug valves, and the plug valves are connected to the rear ends of a plurality of sets of oil nozzle manifold sleds and used for guiding the flow-back fluid of any single well into 1 oil gas water three-phase separator in the separation metering unit 6.
The separation metering unit 6 comprises a plurality of oil-gas-water three-phase separators, and the number of the oil-gas-water three-phase separators is 1 after the sum of the number of the single wells is divided by 2 to be rounded. For example, if the number of single wells is 4, the number of oil-gas-water three-phase separators is 3, if the number of single wells is 5, the number of oil-gas-water three-phase separators is 3, if the number of single wells is 6, the number of oil-gas-water three-phase separators is 4, if the number of single wells is 7, the number of oil-gas-water three-phase separators is 4, and if the number of single wells is 8, the number of oil-gas-water three-phase separators is 5.
The utility model discloses in, flowing back filter equipment/effluent water sump and combustion chamber/gas transmission sledge that becomes more meticulous are returned in 6 rear end installations of separation metering unit, and wherein, the filter equipment/effluent water sump that becomes more meticulous can be connected with separation metering unit 6, low pressure reposition of redundant personnel unit 5 and desanding unit 3 respectively for realize returning the fluidic filtration that becomes more meticulous, thereby satisfy the recycle requirement again. The combustion cell/gas delivery skid may be connected to a separate metering unit 6 for direct gas delivery, etc.
The utility model discloses can realize fracturing-arrange and adopt integration operation needs, its specific flow trend is as follows:
run during drilling plugging: manifold group → plug catcher → desander → glib manifold sledge → blowout pipeline → sewage pool.
The flow trend of a large amount of sand production stages of the stratum during the liquid drainage period is as follows: manifold group → desander → glib talker manifold sledge → blowout pipeline → sewage pool.
The flow trend of the stage with less sand production of the stratum during the liquid drainage period is as follows: manifold group → choke manifold sledge → blowout line → cesspool.
The flow trend of the test measurement during the production period is as follows: manifold group → nozzle manifold sledge → oil gas water three-phase separator → test line → combustion pool.
The flow trend of the pilot production (gas transmission) stage is as follows: manifold group → choke manifold sledge → oil gas water three-phase separator → gas transportation sledge.
Claims (6)
1. A cluster well ground testing device which is characterized in that: the system comprises a wellhead parallel unit (1), a drilling and grinding chip capturing unit (2), a sand removing unit (3), a pressure reduction and flow distribution unit (4), a low-pressure flow distribution unit (5) and a separation and metering unit (6), wherein the wellhead parallel unit (1) is connected with a gas recovery port (7) of each single well in a cluster well group and is used for realizing simultaneous well opening of each single well without cross pressure among wells, plug removal after sand plugging is fractured independently of any single well, drilling and grinding chip capturing independently of any single well and high-pressure sand removal independently of any single well; the drilling and grinding chip catching unit (2) is connected with the wellhead parallel unit (1) and is used for catching chips of a single well which needs to be drilled and ground with the wellhead parallel unit (1) switched in; the sand removing unit (3) is connected with the drilling and grinding chip catching unit (2) and is used for removing sand from the single well subjected to chip catching; the pressure reduction and flow distribution unit (4) is respectively connected with the wellhead parallel unit (1) and the desanding unit (3) and is used for throttling and reducing pressure of high-pressure fluid discharged by a single well and guiding the reduced-pressure fluid into a downstream low-pressure flow distribution unit; the low-pressure shunting unit (5) is connected with the pressure reduction shunting unit (4) and is used for guiding the return fluid of any single well into the separation metering unit (6); and the separation metering unit (6) is connected with the low-pressure flow dividing unit (5) and is used for separating and metering the received flowback liquid.
2. The apparatus of claim 1, wherein: the wellhead parallel unit (1) comprises a manifold group consisting of a plurality of gate valves, the drilling and grinding chip capturing unit (2) is a set of plug capturing device, the desanding unit (3) is a cyclone desander, the pressure reduction and distribution unit (4) comprises a plurality of sets of choke manifold sleds, the low-pressure distribution unit (5) is a set of plug valves, and the separation and metering unit (6) comprises a plurality of oil-gas-water three-phase separators; the wellhead parallel unit (1) is respectively connected with the gas extraction ports (7) of the single wells through a manifold group, and the plug catcher is respectively connected with the manifold group and the cyclone desander; multiple sets of choke manifold sleds are all connected with the plug valve, one set of choke manifold sleds is connected with the cyclone desander, the other choke manifold sleds are all connected with the manifold group, and the number of the other choke manifold sleds is the same as that of the single well; and a plurality of oil-gas-water three-phase separators are connected in parallel and then connected with the plug valve.
3. A cluster well surface testing apparatus according to claim 1 or 2, wherein: and a hydraulic safety valve is connected between the wellhead parallel unit (1) and the gas recovery port (7) of each single well.
4. The apparatus of claim 2, wherein: the number of the oil-gas-water three-phase separators is the sum of the number of the single wells, and 1 is added after the number of the single wells is divided by 2 to be integrated.
5. The apparatus of claim 2, wherein: the nozzle manifold sledge is composed of 4 gate valves and 2 throttling nozzles, and the nozzle manifold sledge is respectively connected with a manifold group, a plug valve and a cyclone desander through the throttling nozzles.
6. The apparatus of claim 2, wherein: and the outlet end of the cyclone desander is provided with a remote control throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921466441.5U CN210598955U (en) | 2019-09-05 | 2019-09-05 | Cluster well ground testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921466441.5U CN210598955U (en) | 2019-09-05 | 2019-09-05 | Cluster well ground testing device |
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| CN210598955U true CN210598955U (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875020A (en) * | 2023-01-05 | 2023-03-31 | 四川涪瑞威尔能源技术有限公司 | Return test system and method |
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- 2019-09-05 CN CN201921466441.5U patent/CN210598955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875020A (en) * | 2023-01-05 | 2023-03-31 | 四川涪瑞威尔能源技术有限公司 | Return test system and method |
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