CN205445565U - Resistant erosion choke manifold - Google Patents
Resistant erosion choke manifold Download PDFInfo
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- CN205445565U CN205445565U CN201620161792.5U CN201620161792U CN205445565U CN 205445565 U CN205445565 U CN 205445565U CN 201620161792 U CN201620161792 U CN 201620161792U CN 205445565 U CN205445565 U CN 205445565U
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- 230000003628 erosive effect Effects 0.000 title claims abstract description 88
- 210000002445 nipple Anatomy 0.000 claims abstract description 77
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 1
- 239000010734 process oil Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 30
- 230000002265 prevention Effects 0.000 description 11
- 206010020852 Hypertonia Diseases 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 7
- 150000004677 hydrates Chemical class 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a resistant erosion choke manifold comprises 1 fixed choke valve, 1 manual needle pattern choke valve, 5 manual plate valves, 2 resistant erosion reducing nipple joints, 2 pipeline cross, 2 pipeline five -ways and manifold pipeline. It is glib to be equipped with resistant erosion reducing in the fixed choke valve, and resistant erosion reducing nipple joint is installed in low reaches, and resistant erosion reducing nipple joint is installed equally in manual needle pattern choke valve low reaches, controls two way throttles, 1 tunnel in line by opening or close different manual bulkhead gate, needle valve compound mode to open flow in -process oil pipe, sheathed tube pressure after the control fracturing. Comparing with the present choke manifold who adopts gate valve or needle valve control, having reduced the erosion of open flow liquid to glib talker, nipple joint, gate valve, improved the ground step -down efficiency of reducing expenditure, practiced thrift the replacement cost of manifold vulnerable part, lengthened choke manifold's life, the practicality is strong, and the effect is showing, is applicable to open flow operation after the oil gas well fracturing.
Description
Technical field
This utility model belongs to the underground work technical field such as well fracturing, acidifying, is specifically related to a kind of erosion resistance choke manifold.
Background technology
Horizontal well multi-stage water power abrasive perforating at present, annular fracturing Technology has obtained large-scale promotion application at Changqing oilfields, need during open flow after pressure break casing annulus pressure, tubing pressure is controlled, existing choke manifold generally uses gate valve or needle-valve to throttle, also some choke manifolds are had to use fixation type throttle valve and gate valve to throttle, but due to gate valve, needle-valve and fixation type throttle valve erosion wear resistance are poor, especially after pressure break in open flow operation process, with a large amount of reservoir sands or perforation sand in sleeve pipe returning fluid, to gate valve, needle-valve and fixation type throttle valve cause serious erosion, and Stress control effect is bad, the most every open flow just can damage a gate valve in one or two hour, needle-valve or fixation type throttle valve.
Utility model content
The purpose of this utility model be solve that the positive choke pressure drop sudden change during open flow after pressure break of existing choke manifold, pressure drop regulation and control inaccuracy (i.e. oil, set Stress control inaccuracy), temperature drop be excessive, problem that the serious erosion of the positive choke port of export, fluid erosion prevention pipe nipple entrance point erosion damage, gate valve damage with the serious erosion of needle-valve.
To this end, this utility model provides a kind of erosion resistance choke manifold, including pipeline four-way one, pipeline five-way two, connected by pipeline one between pipeline four-way one and pipeline five-way two, pipeline one is provided with manual platform gate valve four；
One of them mouth of pipe of pipeline four-way one is communicated with fixation type throttle valve by pipeline two, the longitudinal center line of pipeline two is perpendicular to the longitudinal center line of pipeline one, manual platform gate valve one is installed on pipeline two, fixation type throttle valve is connected by diameter changing nipple one pipeline five-way one, and the axial centerline parallel of diameter changing nipple one is in the longitudinal center line of pipeline one；
One of them mouth of pipe of pipeline five-way two is connected by pipeline five pipeline five-way one, the axial centerline parallel of pipeline five is in the longitudinal center line of pipeline two, manual platform gate valve five is installed on pipeline five, the another one mouth of pipe of pipeline five-way two is connected by pipeline four manual needle-like formula choke valve, manual platform gate valve three is installed on pipeline four, manual needle-like formula choke valve is connected by diameter changing nipple two pipeline four-way two, by pipeline tee joint between pipeline four-way two and pipeline five-way one, pipeline three is provided with manual platform gate valve two；
The inner chamber of described fixation type throttle valve is provided with reducing nozzle tip, and reducing nozzle tip connects with diameter changing nipple one.
Described reducing nozzle tip is the cylindrical structural of hollow, and the internal diameter of inner chamber is gradual change type, and the diameter near diameter changing nipple one one end is maximum.
Described diameter changing nipple one is identical with the structure of diameter changing nipple two, and the internal diameter of inner chamber is gradual change type, and the diameter changing nipple one diameter near reducing nozzle tip one end is minimum, and the diameter changing nipple two diameter near pipeline four-way two one end is minimum.
Described reducing nozzle tip and diameter changing nipple one clamping.
Described reducing nozzle tip is threadeded with diameter changing nipple one.
On the internal chamber wall of described diameter changing nipple one, diameter changing nipple two and reducing nozzle tip, equal heap is welded with YG8 hard alloy tungsten carbide material, and the thickness of built-up welding is 4mm.
Choke manifold overall long 2595mm, wide 1450mm, high 600mm, 2-9/16 selected by described pipeline one, pipeline two, pipeline three, pipeline four, pipeline five " pipeline, pipeline latus rectum is 65mm.
The beneficial effects of the utility model: this erosion resistance choke manifold that this utility model provides, utilize the change of the internal structure of oil nozzle and fluid erosion prevention pipe nipple, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve oil nozzle outlet end erosion and the entrance point erosion of fluid erosion prevention pipe nipple, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.Achieved oil pipe, the accurate control of casing pressure by the different manual platform gate valve of switch, needle-valve combination, reduce the row's of returning load fluid to oil nozzle, pipe nipple, the erosion of gate valve, improve surface throttling efficiency.It is convenient that erosion resistance throttling oil nozzle and erosion resistance pipe nipple are changed, and has good erosive wear resistance.Not only increasing the reducing pressure by regulating flow effect of choke manifold, also a saving the replacement cost of manifold consumable accessory, extend the service life of choke manifold, practical, effect is notable, it is adaptable to open flow operation after well fracturing.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of erosion resistance choke manifold.
Description of reference numerals: 1, pipeline four-way one；2, manual platform gate valve one；3, fixation type throttle valve；4, reducing nozzle tip；5, diameter changing nipple one；6, pipeline five-way one；7, manual platform gate valve two；8, pipeline four-way two I；9, diameter changing nipple two；10, manual needle-like formula choke valve；11, manual platform gate valve three；12, pipeline five-way two；13, manual platform gate valve four；14, manual platform gate valve five；15, pipeline one；16, pipeline two；17, pipeline three；18, pipeline four；19, pipeline five.
Detailed description of the invention
Embodiment 1:
As it is shown in figure 1, a kind of erosion resistance choke manifold, including pipeline four-way 1, pipeline five-way 2 12, connected by pipeline 1 between pipeline four-way 1 and pipeline five-way 2 12, pipeline 1 is provided with manual platform gate valve 4 13；
One of them mouth of pipe of pipeline four-way 1 is communicated with fixation type throttle valve 3 by pipeline 2 16, the longitudinal center line of pipeline 2 16 is perpendicular to the longitudinal center line of pipeline 1, manual platform gate valve 1 is installed on pipeline 2 16, fixation type throttle valve 3 is connected by diameter changing nipple 1 pipeline five-way 1, and the axial centerline parallel of diameter changing nipple 1 is in the longitudinal center line of pipeline 1；
One of them mouth of pipe of pipeline five-way 2 12 is connected by pipeline 5 19 pipeline five-way 1, the axial centerline parallel of pipeline 5 19 is in the longitudinal center line of pipeline 2 16, manual platform gate valve 5 14 is installed on pipeline 5 19, the another one mouth of pipe of pipeline five-way 2 12 is connected by pipeline 4 18 manual needle-like formula choke valve 10, manual platform gate valve 3 11 is installed on pipeline 4 18, manual needle-like formula choke valve 10 is connected by diameter changing nipple 29 pipeline four-way 28, connected by pipeline 3 17 between pipeline four-way 28 and pipeline five-way 1, pipeline 3 17 is provided with manual platform gate valve 27；
The inner chamber of described fixation type throttle valve 3 is provided with reducing nozzle tip 4, and reducing nozzle tip 4 connects with diameter changing nipple 1.
This choke manifold is two to enter scene 2 structure, and side uses manual needle-like formula choke valve 10 to control, and opposite side uses fixation type throttle valve 3 to control, middle in line.Manifold internally-fixed choke valve 3 is built with the erosion resistance reducing nozzle tip 4 of particular design, and downstream is provided with the erosion resistance diameter changing nipple 1 of particular design, and manual needle-like formula choke valve 10 downstream is provided with the erosion resistance diameter changing nipple 29 of particular design equally.By being turned on and off different manual platform gate valve, needle-valve compound mode, select the various sizes of erosion resistance reducing nozzle tip 4 being pre-installed in fixation type throttle valve 3, control two-way throttles, 1 tunnel is in line, thus realize during open flow, oil pipe, the accurate of casing pressure being controlled after pressure break, prevent hypertonia from causing line burst, or hypotony causes stratum to tell sand, it is to avoid oil nozzle erosion in choke manifold.
The connected mode of above-mentioned choke manifold is: all Flange joint that are connected by manifold, and flange is 2-7/8, and " EUER27 standard 350 flange, supporting bolt is M27 × 3 × 175 stud；Choke manifold entrance is attached with well mouth oil pipe gate valve, wellhead casing pipe gate valve, and choke manifold outlet is attached with relief line, according to open flow discharge capacity and pressure after the pressure break of scene at fixation type throttle valve built with the erosion resistance reducing nozzle tip of suitable dimension.
According to open flow discharge capacity and oil after field hydraulic perforating and fracturing, set Stress control needs, reducing nozzle tip 4 is installed in fixation type throttle valve, the size of reducing nozzle tip 4 needs to select according to scene, by switch manual flat gate valve 1 during open flow, manual platform gate valve 4 13, manual platform gate valve 3 11, manual platform gate valve 27, manual needle-like formula choke valve 10, to oil pipe, casing pressure accurately controls, loine pressure release control can be carried out by switch manual flat gate valve 5 14 during hypertonia, prevent superpressure from affecting control blowout manifold quality safety, realize throttling open flow, concrete, the work process of this erosion resistance choke manifold is:
First the manifold set on pipeline four-way 1 is put into mouth to be attached with wellhead casing pipe gate valve, manifold oil on pipeline five-way 2 12 is put into mouth be attached with well mouth oil pipe gate valve, manifold outlet at pipeline five-way 1 is attached with high-pressure hose or hard pipeline (liquids recovery), and the manifold outlet at pipeline four-way 28 is attached with hard relief line；
After above-mentioned connection completes, according to Oil/gas Well open flow flow and well head oil, set Stress control needs, select the reducing nozzle tip 4 of suitable dimension, again reducing nozzle tip 4 is loaded in fixation type throttle valve 3, diameter changing nipple 1 is installed in the downstream of fixation type throttle valve 3, installs diameter changing nipple 29 equally in manual needle-like formula choke valve 10 downstream；
During sleeve pipe open flow, turn off well mouth oil pipe gate valve, open manual platform gate valve 1, close manual platform gate valve 4 13, manual platform gate valve 5 14, manual platform gate valve 27, casing pressure can be throttled and accurately control；If casing pressure is too high, can open manual platform gate valve 4 13, manual platform gate valve 5 14, close manual platform gate valve 3 11, set tapping body flows out from pipeline five-way 1 exit, discharges a part of fluid pressure；
During oil pipe open flow, turn off wellhead casing pipe gate valve, open manual platform gate valve 4 13, manual platform gate valve 3 11, manual platform gate valve 27, manual platform gate valve 1 and manual needle-like formula choke valve 10, close manual platform gate valve 5 14, tubing pressure can be throttled and accurately control；If oil puts hypertonia, can open manual platform gate valve 5 14, oil tapping body flows out from the outlet of pipeline five-way 1, pipeline four-way 28, discharges a part of fluid pressure；
After open flow terminates, closed-in well muzzle sluice valve and oil pipe gate valve, the choke manifold fixation type throttle valve 3 of dismounting cleaning in time, manual needle-like formula choke valve 10 and all of manual platform gate valve, maintain or change erosion resistance reducing nozzle tip, needle-valve, gate valve etc., in order to open flow operation again.
This erosion resistance choke manifold that this utility model provides, utilize the change of the internal structure of oil nozzle and fluid erosion prevention pipe nipple, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve oil nozzle outlet end erosion and the entrance point erosion of fluid erosion prevention pipe nipple, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.Achieved oil pipe, the accurate control of casing pressure by the different manual platform gate valve of switch, needle-valve combination, reduce the row's of returning load fluid to oil nozzle, pipe nipple, the erosion of gate valve, improve surface throttling efficiency.It is convenient that erosion resistance throttling oil nozzle and erosion resistance pipe nipple are changed, and has good erosive wear resistance.Not only increasing the reducing pressure by regulating flow effect of choke manifold, also a saving the replacement cost of manifold consumable accessory, extend the service life of choke manifold, practical, effect is notable, it is adaptable to open flow operation after well fracturing.
Embodiment 2:
On the basis of embodiment 1, described reducing nozzle tip 4 is the cylindrical structural of hollow, the internal diameter of inner chamber is gradual change type, diameter near diameter changing nipple 1 one end is maximum, erosion resistance reducing nozzle tip 4 chock pressure difference can be adjusted between 0.2 ~ 35MPa, with design pressure error in the range of ± 0.5MPa.Utilize the change of reducing nozzle tip 4 internal structure, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve oil nozzle outlet end erosion, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.
The connected mode of above-mentioned choke manifold is: all Flange joint that are connected by manifold, and flange is 2-7/8, and " EUER27 standard 350 flange, supporting bolt is M27 × 3 × 175 stud；Choke manifold entrance is attached with well mouth oil pipe gate valve, wellhead casing pipe gate valve, and choke manifold outlet is attached with relief line, according to open flow discharge capacity and pressure after the pressure break of scene at fixation type throttle valve built with the erosion resistance reducing nozzle tip of suitable dimension.
According to open flow discharge capacity and oil after field hydraulic perforating and fracturing, set Stress control needs, reducing nozzle tip 4 is installed in fixation type throttle valve, the size of reducing nozzle tip 4 needs to select according to scene, by switch manual flat gate valve 1 during open flow, manual platform gate valve 4 13, manual platform gate valve 3 11, manual platform gate valve 27, manual needle-like formula choke valve 10, to oil pipe, casing pressure accurately controls, loine pressure release control can be carried out by switch manual flat gate valve 5 14 during hypertonia, prevent superpressure from affecting control blowout manifold quality safety, realize throttling open flow, concrete, the work process of this erosion resistance choke manifold is:
First the manifold set on pipeline four-way 1 is put into mouth to be attached with wellhead casing pipe gate valve, manifold oil on pipeline five-way 2 12 is put into mouth be attached with well mouth oil pipe gate valve, manifold outlet at pipeline five-way 1 is attached with high-pressure hose or hard pipeline (liquids recovery), and the manifold outlet at pipeline four-way 28 is attached with hard relief line；
After above-mentioned connection completes, according to Oil/gas Well open flow flow and well head oil, set Stress control needs, select the reducing nozzle tip 4 of suitable dimension, again reducing nozzle tip 4 is loaded in fixation type throttle valve 3, diameter changing nipple 1 is installed in the downstream of fixation type throttle valve 3, installs diameter changing nipple 29 equally in manual needle-like formula choke valve 10 downstream；
During sleeve pipe open flow, turn off well mouth oil pipe gate valve, open manual platform gate valve 1, close manual platform gate valve 4 13, manual platform gate valve 5 14, manual platform gate valve 27, casing pressure can be throttled and accurately control；If casing pressure is too high, can open manual platform gate valve 4 13, manual platform gate valve 5 14, close manual platform gate valve 3 11, set tapping body flows out from pipeline five-way 1 exit, discharges a part of fluid pressure；
During oil pipe open flow, turn off wellhead casing pipe gate valve, open manual platform gate valve 4 13, manual platform gate valve 3 11, manual platform gate valve 27, manual platform gate valve 1 and manual needle-like formula choke valve 10, close manual platform gate valve 5 14, tubing pressure can be throttled and accurately control；If oil puts hypertonia, can open manual platform gate valve 5 14, oil tapping body flows out from the outlet of pipeline five-way 1, pipeline four-way 28, discharges a part of fluid pressure；
After open flow terminates, closed-in well muzzle sluice valve and oil pipe gate valve, the choke manifold fixation type throttle valve 3 of dismounting cleaning in time, manual needle-like formula choke valve 10 and all of manual platform gate valve, maintain or change erosion resistance reducing nozzle tip, needle-valve, gate valve etc., in order to open flow operation again.
This erosion resistance choke manifold that this utility model provides, utilize the change of the internal structure of oil nozzle and fluid erosion prevention pipe nipple, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve oil nozzle outlet end erosion and the entrance point erosion of fluid erosion prevention pipe nipple, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.Achieved oil pipe, the accurate control of casing pressure by the different manual platform gate valve of switch, needle-valve combination, reduce the row's of returning load fluid to oil nozzle, pipe nipple, the erosion of gate valve, improve surface throttling efficiency.It is convenient that erosion resistance throttling oil nozzle and erosion resistance pipe nipple are changed, and has good erosive wear resistance.Not only increasing the reducing pressure by regulating flow effect of choke manifold, also a saving the replacement cost of manifold consumable accessory, extend the service life of choke manifold, practical, effect is notable, it is adaptable to open flow operation after well fracturing.
Embodiment 3:
Described diameter changing nipple 1 is identical with the structure of diameter changing nipple 29, and the internal diameter of inner chamber is gradual change type, and the diameter changing nipple 1 diameter near reducing nozzle tip 4 one end is minimum, and the diameter changing nipple 29 diameter near pipeline four-way 28 one end is minimum.Utilize diameter changing nipple 1 and the change of diameter changing nipple 29 internal structure, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve diameter changing nipple 1 and diameter changing nipple 29 entrance point erosion, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.
The connected mode of above-mentioned choke manifold is: all Flange joint that are connected by manifold, and flange is 2-7/8, and " EUER27 standard 350 flange, supporting bolt is M27 × 3 × 175 stud；Choke manifold entrance is attached with well mouth oil pipe gate valve, wellhead casing pipe gate valve, and choke manifold outlet is attached with relief line, according to open flow discharge capacity and pressure after the pressure break of scene at fixation type throttle valve built with the erosion resistance reducing nozzle tip of suitable dimension.
According to open flow discharge capacity and oil after field hydraulic perforating and fracturing, set Stress control needs, reducing nozzle tip 4 is installed in fixation type throttle valve, the size of reducing nozzle tip 4 needs to select according to scene, by switch manual flat gate valve 1 during open flow, manual platform gate valve 4 13, manual platform gate valve 3 11, manual platform gate valve 27, manual needle-like formula choke valve 10, to oil pipe, casing pressure accurately controls, loine pressure release control can be carried out by switch manual flat gate valve 5 14 during hypertonia, prevent superpressure from affecting control blowout manifold quality safety, realize throttling open flow, concrete, the work process of this erosion resistance choke manifold is:
First the manifold set on pipeline four-way 1 is put into mouth to be attached with wellhead casing pipe gate valve, manifold oil on pipeline five-way 2 12 is put into mouth be attached with well mouth oil pipe gate valve, manifold outlet at pipeline five-way 1 is attached with high-pressure hose or hard pipeline (liquids recovery), and the manifold outlet at pipeline four-way 28 is attached with hard relief line；
After above-mentioned connection completes, according to Oil/gas Well open flow flow and well head oil, set Stress control needs, select the reducing nozzle tip 4 of suitable dimension, again reducing nozzle tip 4 is loaded in fixation type throttle valve 3, diameter changing nipple 1 is installed in the downstream of fixation type throttle valve 3, installs diameter changing nipple 29 equally in manual needle-like formula choke valve 10 downstream；
During sleeve pipe open flow, turn off well mouth oil pipe gate valve, open manual platform gate valve 1, close manual platform gate valve 4 13, manual platform gate valve 5 14, manual platform gate valve 27, casing pressure can be throttled and accurately control；If casing pressure is too high, can open manual platform gate valve 4 13, manual platform gate valve 5 14, close manual platform gate valve 3 11, set tapping body flows out from pipeline five-way 1 exit, discharges a part of fluid pressure；
During oil pipe open flow, turn off wellhead casing pipe gate valve, open manual platform gate valve 4 13, manual platform gate valve 3 11, manual platform gate valve 27, manual platform gate valve 1 and manual needle-like formula choke valve 10, close manual platform gate valve 5 14, tubing pressure can be throttled and accurately control；If oil puts hypertonia, can open manual platform gate valve 5 14, oil tapping body flows out from the outlet of pipeline five-way 1, pipeline four-way 28, discharges a part of fluid pressure；
After open flow terminates, closed-in well muzzle sluice valve and oil pipe gate valve, the choke manifold fixation type throttle valve 3 of dismounting cleaning in time, manual needle-like formula choke valve 10 and all of manual platform gate valve, maintain or change erosion resistance reducing nozzle tip, needle-valve, gate valve etc., in order to open flow operation again.
This erosion resistance choke manifold that this utility model provides, utilize the change of the internal structure of oil nozzle and fluid erosion prevention pipe nipple, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve oil nozzle outlet end erosion and the entrance point erosion of fluid erosion prevention pipe nipple, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.Achieved oil pipe, the accurate control of casing pressure by the different manual platform gate valve of switch, needle-valve combination, reduce the row's of returning load fluid to oil nozzle, pipe nipple, the erosion of gate valve, improve surface throttling efficiency.It is convenient that erosion resistance throttling oil nozzle and erosion resistance pipe nipple are changed, and has good erosive wear resistance.Not only increasing the reducing pressure by regulating flow effect of choke manifold, also a saving the replacement cost of manifold consumable accessory, extend the service life of choke manifold, practical, effect is notable, it is adaptable to open flow operation after well fracturing.
Embodiment 4:
On the basis of embodiment 1, described reducing nozzle tip 4 and diameter changing nipple 1 clamping or threaded, the convenient dismounting of this connected mode, after open flow terminates, can dismantle in time, maintain or change reducing nozzle tip, in order to open flow operation again.
Embodiment 5:
On the internal chamber wall of described diameter changing nipple 1, diameter changing nipple 29 and reducing nozzle tip 4, equal heap is welded with YG8 hard alloy tungsten carbide material, and the thickness of built-up welding is 4mm, has higher erosive wear resistance.
Embodiment 6:
Choke manifold overall long 2595mm, wide 1450mm, high 600mm, the size of described reducing nozzle tip 4 is 2～20mm, described pipeline 1, pipeline 2 16, pipeline 3 17, pipeline 4 18, pipeline 5 19 select 2-9/16 " pipeline, pressure-bearing 35MPa, pipeline latus rectum is 65mm.
This erosion resistance choke manifold that this utility model provides, utilize the change of the internal structure of oil nozzle and fluid erosion prevention pipe nipple, its flow velocity and pressure when the fluid that oil pipe, sleeve pipe return out flows through this choke manifold is made steadily to reduce, pressure drop slowly reduces, temperature drop declines mild, oil pipe, casing pressure control accurately, thus effectively solve oil nozzle outlet end erosion and the entrance point erosion of fluid erosion prevention pipe nipple, avoid forming gas hydrates with blocking choke manifold and well head because throttling temperature drop declines too fast simultaneously.Achieved oil pipe, the accurate control of casing pressure by the different manual platform gate valve of switch, needle-valve combination, reduce the row's of returning load fluid to oil nozzle, pipe nipple, the erosion of gate valve, improve surface throttling efficiency.It is convenient that erosion resistance throttling oil nozzle and erosion resistance pipe nipple are changed, and has good erosive wear resistance.Not only increasing the reducing pressure by regulating flow effect of choke manifold, also a saving the replacement cost of manifold consumable accessory, extend the service life of choke manifold, practical, effect is notable, it is adaptable to open flow operation after well fracturing.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.Parts that the present embodiment describes the most in detail and structure belong to the well-known components of the industry and common structure or conventional means, describe the most one by one.
Claims (7)
1. an erosion resistance choke manifold, it is characterized in that: include pipeline four-way one (1), pipeline five-way two (12), connected by pipeline one (15) between pipeline four-way one (1) and pipeline five-way two (12), pipeline one (15) is provided with manual platform gate valve four (13)；
One of them mouth of pipe of pipeline four-way one (1) is communicated with fixation type throttle valve (3) by pipeline two (16), the longitudinal center line of pipeline two (16) is perpendicular to the longitudinal center line of pipeline one (15), manual platform gate valve one (2) is installed on pipeline two (16), fixation type throttle valve (3) is connected by diameter changing nipple one (5) pipeline five-way one (6), and the axial centerline parallel of diameter changing nipple one (5) is in the longitudinal center line of pipeline one (15)；
One of them mouth of pipe of pipeline five-way two (12) is connected by pipeline five (19) pipeline five-way one (6), the axial centerline parallel of pipeline five (19) is in the longitudinal center line of pipeline two (16), manual platform gate valve five (14) is installed on pipeline five (19), the another one mouth of pipe of pipeline five-way two (12) is connected by pipeline four (18) manual needle-like formula choke valve (10), manual platform gate valve three (11) is installed on pipeline four (18), manual needle-like formula choke valve (10) is connected by diameter changing nipple two (9) pipeline four-way two (8), connected by pipeline three (17) between pipeline four-way two (8) and pipeline five-way one (6), pipeline three (17) is provided with manual platform gate valve two (7)；
The inner chamber of described fixation type throttle valve (3) is provided with reducing nozzle tip (4), and reducing nozzle tip (4) connects with diameter changing nipple one (5).
2. erosion resistance choke manifold as claimed in claim 1, it is characterised in that: described reducing nozzle tip (4) is the cylindrical structural of hollow, and the internal diameter of inner chamber is gradual change type, and the diameter near diameter changing nipple one (5) one end is maximum.
3. erosion resistance choke manifold as claimed in claim 1, it is characterized in that: described diameter changing nipple one (5) is identical with the structure of diameter changing nipple two (9), the internal diameter of inner chamber is gradual change type, the diameter changing nipple one (5) diameter near reducing nozzle tip (4) one end is minimum, and the diameter changing nipple two (9) diameter near pipeline four-way two (8) one end is minimum.
4. erosion resistance choke manifold as claimed in claim 1, it is characterised in that: described reducing nozzle tip (4) and diameter changing nipple one (5) clamping.
5. erosion resistance choke manifold as claimed in claim 1, it is characterised in that: described reducing nozzle tip (4) is threadeded with diameter changing nipple one (5).
6. the erosion resistance choke manifold as described in claim 1 or 2 or 3, it is characterised in that: on the internal chamber wall of described diameter changing nipple one (5), diameter changing nipple two (9) and reducing nozzle tip (4), equal heap is welded with YG8 hard alloy tungsten carbide material, and the thickness of built-up welding is 4mm.
7. erosion resistance choke manifold as claimed in claim 1, it is characterized in that: the overall long 2595mm of choke manifold, wide 1450mm, high 600mm, described pipeline one (15), pipeline two (16), pipeline three (17), pipeline four (18), pipeline five (19) select 2-9/16 " pipeline, pipeline latus rectum is 65mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161792.5U CN205445565U (en) | 2016-03-03 | 2016-03-03 | Resistant erosion choke manifold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620161792.5U CN205445565U (en) | 2016-03-03 | 2016-03-03 | Resistant erosion choke manifold |
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| CN201620161792.5U Withdrawn - After Issue CN205445565U (en) | 2016-03-03 | 2016-03-03 | Resistant erosion choke manifold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626004A (en) * | 2016-03-03 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Blowout erosion-resistant throttle manifold for oil and gas wells |
| CN114198047A (en) * | 2021-11-30 | 2022-03-18 | 盐城佰信石油机械有限公司 | Sulfur-resistant and erosion-resistant throttling kill manifold |
-
2016
- 2016-03-03 CN CN201620161792.5U patent/CN205445565U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626004A (en) * | 2016-03-03 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Blowout erosion-resistant throttle manifold for oil and gas wells |
| CN105626004B (en) * | 2016-03-03 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of Oil/gas Well open flow erosion resistance choke manifold |
| CN114198047A (en) * | 2021-11-30 | 2022-03-18 | 盐城佰信石油机械有限公司 | Sulfur-resistant and erosion-resistant throttling kill manifold |
| CN114198047B (en) * | 2021-11-30 | 2024-05-03 | 盐城佰信石油机械有限公司 | Sulfur-resistant anti-erosion throttling well killing manifold |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20171215 |