CN209817976U - Continuous sand-discharging and blockage-removing process system for oil well and water well - Google Patents
Continuous sand-discharging and blockage-removing process system for oil well and water well Download PDFInfo
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- CN209817976U CN209817976U CN201920635078.9U CN201920635078U CN209817976U CN 209817976 U CN209817976 U CN 209817976U CN 201920635078 U CN201920635078 U CN 201920635078U CN 209817976 U CN209817976 U CN 209817976U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000007599 discharging Methods 0.000 title claims abstract description 22
- 239000003129 oil well Substances 0.000 title description 8
- 239000004576 sand Substances 0.000 claims abstract description 98
- 239000003921 oil Substances 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000010779 crude oil Substances 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
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- 239000007789 gas Substances 0.000 claims description 3
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- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
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Abstract
A heating furnace of an oil-water well continuous sand-discharging blockage-removing process system is provided with an inlet valve and an outlet valve, a bypass valve is arranged between the inlet valve and the outlet valve and is connected with a liquid inlet valve of a first-stage cyclone sand remover of a cyclone sand remover group through a pipeline, an outlet of the first-stage cyclone sand remover is connected with an inlet of a second-stage cyclone sand remover through a pipeline, an outlet of the second-stage cyclone sand remover is connected with an inlet of an oil-gas-water-sand four-phase separator through a pipeline, and a crude oil outlet of the oil-gas-water-sand four-phase separator is sequentially connected with an oil outlet valve, a pipeline, a pump oil inlet valve, a screw; the bottom water outlet of the oil-gas-water-sand four-phase separator is sequentially connected with a water discharge valve II, a pipeline and a water tank, the water tank is sequentially connected with a middle four-way valve I of a wellhead device through a water outlet valve, a pipeline, a pump inlet valve, a reciprocating booster pump, a buffer bag, a pump outlet valve, a filter and a flowmeter, and an upper four-way valve IV, a pipeline and a heating furnace inlet valve form a whole closed loop system.
Description
Technical Field
The utility model relates to an oil field oil, well oil recovery process technology is specifically an oil, well continuous sand discharging unblock process systems.
Background
At present, in the oil field drilling process, drilling mud is inevitably leaked to a stratum to cause the pollution of a near well and a far well zone, so that the flowing gap of the stratum is blocked, and the liquid supply capacity of the stratum is reduced. In the production process of an oil well, due to the fact that the content of mud and fine sand in a stratum is large, seepage channels of stratum fluid can be blocked, and accidents such as pump blockage and the like can be caused when the mud and the fine sand enter a pump cylinder along with the stratum fluid. Therefore, how to effectively remove the blockage is extremely important to improve the productivity.
There are two common methods for removing oil layer from oil field: firstly, nitrogen gas foam mixes and removes stifled, nitrogen discharge foam mixes and arranges stifled technique and is taken in and send out, negative pressure mixes row through the foam, relies on the great shaft bottom negative pressure difference of foam's the ability of carrying solid particle and formation by force, and the solid particle and plug discharge stratum such as organic precipitate in nearly wellbore area utilize the high-speed fluid of returning row that carries solid particle simultaneously, wash the compaction of porthole from inside to outside, dredge the perforation porthole, reach and relieve the reservoir and block up. And secondly, water conservancy pulse and chemical composite blockage removal, wherein a water conservancy pulse method depends on energy of a falling liquid column to generate instantaneous high pressure by means of a simple device and a simple process to form a large number of micro cracks so as to improve seepage performance. During construction, the pulse generator is connected to an oil pipe, an oil layer is treated from the lower part of the oil pipe, the flow guide perforated pipe is aligned to the middle part of the oil layer, a ground pipeline is connected, a pump truck fills liquid into a well, a first-stage pressure stabilizer is thrown from a well mouth after an annular space of an oil sleeve is filled, when the pressure stabilizer is located on a pressure stabilizer base, the pump truck starts to start to bear pressure, and the potential energy pressure can act on the first-stage pressure stabilizer at the moment. When the pump pressure is greater than the shearing force of the pressure stabilizer, the pressure stabilizer is exploded, at the moment, the pressure energy of the high-pressure liquid column is converted into kinetic energy to enter the pulse chamber, and when the high-pressure liquid column moves above the uniflow valve in an accelerated manner, the kinetic energy is converted into pressure energy to push the uniflow valve to the pulse chamber, so that the first positive water hammer on the oil layer is realized, and a plurality of irregular microcracks are generated on the oil layer. And then sequentially putting a plurality of stages of pressure regulators to carry out positive water hammer treatment on the oil layer for a plurality of times, so that the cracks are continuously deepened, and simultaneously adding a proper chemical blocking remover to erode the plugs on the surfaces and in the holes of the cracks, thereby achieving the purpose of increasing the yield.
Although the method can play a role in pollution of a near wellbore zone and discharge of muddy granular sand of the near wellbore zone, the blockage removing capability is limited due to the short construction period and the small blockage removing radius. Even the pollutants, mud and sand in the far well zone are carried to the near well zone to continuously block the oil layer pore canal.
Disclosure of Invention
The utility model aims at the above-mentioned weak point, provide an oil, continuous sand discharging unblock process systems of well.
The utility model aims at being realized by the following technical scheme:
the utility model discloses a: the device comprises a pipeline, a heating furnace, a grit chamber, a cyclone desander group, an oil-gas-water-sand four-phase separator, a water tank, a reciprocating booster pump, a filter, a flowmeter, a wellhead device, a sleeve, an outer oil pipe, an inner oil pipe, a jet pump, a sand pumping pipe, a wire winding sieve pipe, a tail pipe and a plug; the method is characterized in that: the heating furnace is provided with an inlet valve and an outlet valve, a bypass valve is arranged between the inlet valve and the outlet valve and is connected with a liquid inlet valve of a first-stage cyclone desander of the cyclone desander group through a pipeline, an outlet of the first-stage cyclone desander is connected with an inlet of a second-stage cyclone desander through a pipeline, an outlet of the second-stage cyclone desander is connected with an inlet of an oil-gas-water-sand four-phase separator through a pipeline, and a crude oil outlet of the oil-gas-water-sand four-phase separator is sequentially connected with an oil outlet valve, a pipeline, a pump oil inlet valve, a screw rod mixed transportation; the bottom water outlet of the oil-gas-water-sand four-phase separator is sequentially connected with a water discharge valve II, a pipeline and a water tank, the water tank is sequentially connected with a middle four-way valve I of a wellhead device through a water outlet valve, a pipeline, a pump inlet valve, a reciprocating booster pump, a buffer bag, a pump outlet valve, a filter and a flowmeter, and an upper four-way valve IV, a pipeline and a heating furnace inlet valve form a whole closed loop system.
The middle four-way is arranged at the upper part of a large four-way of a wellhead device in the oil and water well continuous sand discharging and blockage removing process system, the middle four-way and the upper four-way are respectively connected with a hanger through an upper clamp and a lower clamp, a valve I and a valve III are connected in parallel through a pipeline and connected with a flowmeter, and a valve II and a valve IV are respectively connected in parallel through a pipeline and connected with an inlet valve of a heating furnace; the wellhead device and the sleeve are internally provided with double-layer pipes, the lower part of the outer oil pipe is in threaded connection with the wire-wound sieve pipe, the tail pipe and the plug through a sand pumping pipe in sequence, and the upper part of the outer oil pipe is hung in an inner hole of the large four-way pipe through a self-sealing core; the lower part of the inner oil pipe is in threaded connection with the jet pump, a pump cylinder at the lower part of the jet pump is in plug-in connection with the sand pumping pipe at the lower part of the outer oil pipe through a plug-in seal, the upper end of the inner oil pipe is in threaded connection with the central hole of the hanger, and the upper end of the inner oil pipe is in threaded connection with the central hole of the hanger.
The drainage valve I of the grit chamber in the oil-water well continuous sand-discharging and blockage-removing process system is connected with a water tank through a pipeline.
The lower parts of the first-stage cyclone desander and the second-stage cyclone desander of the cyclone desander group in the oil-water well continuous sand discharge and blockage removal process system are provided with sand settling pipes which incline downwards, and the lower parts of the sand settling pipes are provided with sand discharge valves.
The upper part of the oil-gas-water-sand four-phase separator in the oil-water well continuous sand discharging and blockage removing process system is provided with a safety valve I, a natural gas pipeline is connected with a pump oil inlet valve through a check valve, and a sand discharging valve II at the lower part of the oil-gas-water-sand four-phase separator is connected with a sand basin through a pipeline.
The pressure gauge is arranged on the outer conveying pipeline of the mixing and conveying pump in the oil and water well continuous sand discharging and blockage removing process system.
A safety valve II is arranged between a buffer bag of the reciprocating booster pump and an outlet valve of the pump in the oil-water well continuous sand discharging and blockage removing process system.
The working principle is that water in a water pool of an oil-water well continuous sand discharging and blockage removing process system is pressurized to a buffer bag, a pump outlet valve, a filter and a flowmeter through a water outlet valve, a pipeline, a pump inlet valve, a reciprocating booster pump and a valve I of a middle-four-way joint of a wellhead device, high-pressure water passes through annular spaces of an outer oil pipe and an inner oil pipe, and when the high-pressure water of a downhole jet pump is sprayed out from a nozzle at a high speed, the surrounding air is entrained by jet flow at the inlet of a throat pipe to form vacuum, stratum output liquid enters a sand pumping pipe and a pump barrel through a wire-wrapping screen pipe, a check valve is jacked to an S-shaped stratum liquid channel to be sucked, two fluids are mixed in the throat pipe and subjected to momentum exchange, so that the kinetic energy of the stratum output liquid is increased, and finally most of the kinetic energy is converted into pressure energy through a diffusion pipe, enters the inner oil pipe through the diffusion pipe, is lifted to the wellhead device, the second-stage cyclone desander realizes liquid-sand separation, sand flows into a sand setting pipe and is discharged into a sand setting tank through a sand discharge valve, liquid enters an oil-gas-water-sand four-phase separator through an outlet of the second-stage cyclone desander for separation, crude oil passes through an oil outlet valve and an oil pipeline to a pump oil inlet valve through an oil outlet, meanwhile, natural gas enters the pump oil inlet valve through a check valve and an air pipeline, enters a screw rod mixed transportation pump for pressurization, and is output to a metering station through the pump oil outlet valve and the oil pipeline; the separated water enters the water tank through the drainage valve II and the water, and sewage is recycled, so that not only is continuous sand removal and blockage removal of the stratum realized, but also the purposes of production of yield-increasing crude oil and water well injection increase can be achieved.
The utility model discloses with prior art has following advantage:
1. the method is applied to sand washing and blockage removal in continuous oil production of oil wells and water wells, and the produced water in the stratum is recycled, so that the method is environment-friendly and energy-saving;
2. the stratum pollutants, stratum mud and sand in the far well zone of the oil well can be smoothly discharged out of the ground;
3. the accidents of pump blockage and the like caused by the fact that oil well mud materials and fine sand enter a pump cylinder along with formation fluid are effectively avoided, the pump detection period is prolonged, the operation cost is reduced, and the yield of crude oil is improved;
4. the water injection well is applied to a water well, so that the blockage of a water injection layer can be effectively eliminated, the water injection efficiency is improved, the water flooding effect is improved, and the crude oil recovery rate is improved.
Drawings
FIG. 1-the structure of the process flow of the present invention
In the figure: 0. the pipeline comprises a pipeline 1, a heating furnace 1, an inlet valve 1-1, a bypass valve 1-2 and an outlet valve 1-3; 2. 2-1, a drainage valve I; 3. a cyclone desander group, 3-1, a first-stage cyclone desander, 3-2, a second-stage cyclone desander, 3-3, a liquid inlet valve, 3-4, a sand settling pipe and 3-5, a sand discharge valve; 4. 4-1 of an oil gas water sand four-phase separator, 4-1 of a safety valve I, 4-2 of a drainage valve II, 4-3 of a check valve, 4-4 of an oil outlet valve and 4-5 of a sand drainage valve II; 5. a water pool, 5-1, a water outlet valve; 5 ' screw rod mixing and conveying pump, 5 ' 1 ' pump oil inlet valve, 5 ' 2 ' pump oil outlet valve, 5 ' 3 ' pressure gauge; 6. the device comprises a reciprocating booster pump, 6-1 pump inlet valve, 6-2 buffer bag, 6-3 safety valve II, 6-4 pump outlet valve; 7. the system comprises a filter, 8 parts of a flowmeter, 9 parts of a wellhead device, 9-1 parts of a large four-way joint, 9-2 parts of a middle four-way joint, 9-20 parts of a valve I, 9-21 parts of a valve II; 9-3, an upper four-way valve, 9-30, a valve III, 9-31, a blowout prevention valve, 9-32, a valve IV; 9-4. a hanger, 9-40. a lower clamp and 9-41. an upper clamp; 10. the jet pump comprises a casing, 11 parts of an outer oil pipe, 12 parts of an inner oil pipe, 13 parts of a jet pump, 13-1 parts of a diffusion pipe, 13-2 parts of a throat pipe, 13-3 parts of a nozzle, 13-4 parts of a one-way valve, 13-5 parts of a pump barrel and 13-6 parts of an inserted sealing sleeve; 14. sand pumping pipe, 15 wire-wound sieve tube, 16 tail tube, 17 plug, 18 oil layer; D. a formation fluid channel, and a G. high pressure water channel.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1, a heating furnace 1 of an oil-water well continuous sand-discharging and blockage-removing process system is provided with an inlet valve 1-1 and an outlet valve 1-3, a bypass valve 1-2 is arranged between the inlet valve 1-1 and the outlet valve 1-3, the heating furnace is connected with an inlet valve 3-3 of a first-stage cyclone sand remover 3-1 of a cyclone sand remover group 3 through a pipeline 0, an outlet of the first-stage cyclone sand remover 3-1 is connected with an inlet of a second-stage cyclone sand remover 3-2 through a pipeline 0, an outlet of the second-stage cyclone sand remover 3-2 is connected with an inlet of an oil-gas-water-sand four-phase separator 4 through a pipeline 0, and a crude oil outlet of the oil-gas-water-sand four-phase separator 4 is sequentially connected with an outlet valve 4-4, a pipeline 0, a pump inlet valve 5' -1, a screw rod mixing; the bottom water outlet of the oil-gas-water-sand four-phase separator 4 is sequentially connected with a water discharge valve II 4-2, a pipeline 0 and a water pool 5, the water pool 5 is sequentially connected with a water outlet valve 5-1, a pipeline 0, a pump inlet valve 6-1, a reciprocating booster pump 6, a buffer bag 6-2, a pump outlet valve 6-4, a filter 7 and a flowmeter 8 through a valve I9-20 of a middle four-way valve 9-2 of a wellhead device 9, and a valve IV 9-32 of an upper four-way valve 9-3, a pipeline 0 and an inlet valve 1-1 of a heating furnace 1 to form a whole closed loop system.
The upper part of a large four-way 9-1 of a wellhead device 9 is provided with a middle four-way 9-2, the middle four-way 9-2 and the upper four-way 9-3 are respectively connected with a hanger 9-4 through an upper clamp 9-41 and a lower clamp 9-40, a valve I9-20 and a valve III 9-30 are connected in parallel through a pipeline and are connected with a flowmeter 8, a valve II 9-21 and a valve IV 9-32 are respectively connected in parallel through a pipeline 0 and are connected with an inlet valve 1-1 of a heating furnace 1, the wellhead device 9 and a sleeve 10 are internally provided with double-layer pipe holders, the diameter of an outer oil pipe 11 is Ø 89mm, the diameter of the lower part of the outer oil pipe is Ø 48mm through a sand pumping pipe 14 and is sequentially connected with a wire winding screen 15 and a tail pipe 16 through Ø 89mm and a plug 17 through threads, the upper part of the outer oil pipe 11 is hung on the inner hole of the large four-way 9-1 through a self-sealing core, the diameter of an inner oil pipe 12 is Ø 48mm, the lower part of the inner hole is connected with a jet pump 13 through threads, a pump.
And a drainage valve I2-1 of the grit chamber 2 is connected with a water tank 5 through a pipeline 0.
The lower parts of the first-stage cyclone sand remover 3-1 and the second-stage cyclone sand remover 3-2 of the cyclone sand remover group 3 are provided with sand settling pipes 3-4 which incline downwards, and the lower parts of the sand settling pipes 3-4 are provided with sand discharge valves 3-5.
The diameter of the hole diameter of the wire-wound sieve tube 15 is the same as that of the nozzle 13-3 of the jet pump 13, the large-particle-diameter stratum plugs in the stratum output liquid are prevented by the wire-wound sieve tube 15 from sinking to the bottom of the well, and the small particles are lifted to the ground through the nozzle 13-3 along with the output liquid, so that the nozzle 13-3 can be effectively prevented from being plugged.
Water in a water pool 5 of an oil and water well continuous sand discharging and blockage removing process system is pressurized to a buffer bag 6-2 through a water outlet valve 5-1, a pipeline 0 to a pump inlet valve 6-1 to a reciprocating booster pump 6, the water enters a valve I9-20 of a middle four-way valve 9-2 of a wellhead device 9, high-pressure water passes through the annular space of an outer oil pipe 11 and an inner oil pipe 12, when the high-pressure water of a downhole jet pump 13 is sprayed out from a nozzle 13-3 at a high speed, the surrounding air is entrained by jet flow to form vacuum at the inlet of a throat pipe 13-2, formation production liquid enters a sand extracting pipe 14 and a pump barrel 13-5 through a wire winding screen pipe 15, a one-way valve 13-4 is opened to be sucked into an S-shaped formation liquid channel, the two fluids are mixed in the throat pipe 13-2 and are exchanged, so that the kinetic energy of the formation liquid is increased, and most of the two fluids are converted into the kinetic energy through a diffusion pipe 13-1 Pressure energy enters an inner oil pipe 12 through a diffusion pipe 13-1, mixed liquor is lifted to a wellhead device 9, the mixed liquor passes through a valve IV 9-32, a pipeline 0 and a heating furnace 1 and enters a liquid inlet valve 3-3 of a cyclone sand remover group 3 to a first-stage cyclone sand remover 3-1 and a second-stage cyclone sand remover 3-2 to realize liquid-sand separation, sand flows into a sand setting pipe 3-4 and is discharged into a grit chamber 2 through a sand discharge valve 3-5, liquid enters an oil-gas-water-sand four-phase separator 4 through an outlet of the second-stage cyclone sand remover 3-2 to be separated, crude oil passes through an oil outlet valve 4-4, an oil pipeline 0 and a pump inlet valve 5-1 through an oil outlet, and meanwhile, natural gas passes through the pump inlet valve 5-1 through the diffusion pipe 4-3 and the air pipeline 0 and enters a screw mixing and conveying pump 5 'and is pressurized and then pumped out through the oil valve 5-2' through the pump inlet, The oil pipeline 0 is transported to a metering station; the separated water enters the water pool 5 through the drainage valve II 4-2 and the water, and sewage is recycled, so that continuous sand removal and blockage removal of the oil well stratum are realized, and the aims of increasing the yield of crude oil in the oil well and increasing the injection of the water injection well are fulfilled.
Claims (7)
1. A continuous sand-discharging and blockage-removing process system for oil and water wells comprises: the device comprises a pipeline (0), a heating furnace (1), a grit chamber (2), a rotational flow desander group (3), an oil-gas-water-sand four-phase separator (4), a water tank (5), a reciprocating booster pump (6), a filter (7), a flowmeter (8), a wellhead device (9), a sleeve (10), an outer oil pipe (11), an inner oil pipe (12), a jet pump (13), a sand pumping pipe (14), a wire-wound sieve pipe (15), a tail pipe (16) and a plug (17); the method is characterized in that: the heating furnace (1) is provided with an inlet valve (1-1) and an outlet valve (1-3), a bypass valve (1-2) is arranged between the inlet valve and the outlet valve, the inlet valve is connected with a liquid inlet valve (3-3) of a primary cyclone sand remover (3-1) of a cyclone sand remover group (3) through a pipeline (0), an outlet of the primary cyclone sand remover (3-1) is connected with an inlet of a secondary cyclone sand remover (3-2) through a pipeline (0), an outlet of the secondary cyclone sand remover (3-2) is connected with an inlet of an oil-gas-water-sand four-phase separator (4) through a pipeline (0), a crude oil outlet of the oil-gas-water-sand four-phase separator (4) is sequentially connected with an oil outlet valve (4-4), a pipeline (0), a pump inlet valve (5-1), a screw mixing and conveying pump (5'), an oil outlet valve (5-2), The pipelines (0) are connected; a bottom water outlet of the oil-gas-water-sand four-phase separator (4) is sequentially connected with a water drainage valve II (4-2), a pipeline (0) and a water tank (5), the water tank (5) is sequentially connected with a water outlet valve (5-1), the pipeline (0), a pump inlet valve (6-1), a reciprocating booster pump (6), a buffer bag (6-2), a pump outlet valve (6-4), a filter (7) and a flowmeter (8) through a valve I (9-20) of a middle four-way valve (9-2) of a wellhead device (9), a valve IV (9-32) of an upper four-way valve (9-3), the pipeline (0) and an inlet valve (1-1) of a heating furnace (1), and a whole closed loop system is formed.
2. The continuous sand-discharging and blockage-removing process system for the oil and water wells as claimed in claim 1, which is characterized in that: the upper part of a large four-way joint (9-1) of the wellhead device (9) is provided with a middle four-way joint (9-2), the middle four-way joint (9-2) and the upper four-way joint (9-3) are respectively connected with a hanger (9-4) through an upper clamp (9-41) and a lower clamp (9-40), a valve I (9-20) and a valve III (9-30) are connected in parallel through a pipeline and are connected with a flowmeter (8), and a valve II (9-21) and a valve IV (9-32) are respectively connected in parallel through a pipeline (0) and are connected with an inlet valve (1-1) of the heating furnace (1); a double-layer pipe is arranged in the wellhead device (9) and the sleeve (10), the lower part of the outer oil pipe (11) is sequentially in threaded connection with the wire-wound sieve pipe (15), the tail pipe (16) and the plug (17) through the sand pumping pipe (14), and the upper part of the outer oil pipe (11) is hung in the inner hole of the large cross joint (9-1) through the self-sealing core; the lower part of the inner oil pipe (12) is in threaded connection with the jet pump (13), a pump cylinder (13-6) at the lower part of the jet pump (13) is inserted into a sand pumping pipe (14) at the lower part of the outer oil pipe (11) through an inserted seal (12-7), and the upper end of the inner oil pipe (12) is in threaded connection with a central hole of the hanger (9-4).
3. The continuous sand-discharging and blockage-removing process system for the oil and water wells as claimed in claim 1, which is characterized in that: and a drainage valve I (2-1) of the grit chamber (2) is connected with the water tank (5) through a pipeline (0).
4. The continuous sand-discharging and blockage-removing process system for the oil and water wells as claimed in claim 1, which is characterized in that: the lower parts of the first-stage cyclone sand remover (3-1) and the second-stage cyclone sand remover (3-2) of the cyclone sand remover group (3) are provided with sand settling pipes (3-4) which incline downwards, and the lower parts of the sand settling pipes (3-4) are provided with sand discharge valves (3-5).
5. The continuous sand-discharging and blockage-removing process system for the oil and water wells as claimed in claim 1, which is characterized in that: the upper portion of oil gas water sand phase separator (4) is equipped with relief valve I (4-1), and natural gas pipeline (0) are connected with pump inlet valve (5' -1) through check valve (4-3), and sand discharging valve II (4-5) in the lower part of oil gas water sand phase separator (4) pass through pipeline (0) and are connected with grit chamber (2).
6. The continuous sand-discharging and blockage-removing process system for the oil and water wells as claimed in claim 1, which is characterized in that: and a pressure gauge (5 '-3) is arranged on an output pipeline (0) of the screw rod mixing transportation pump (5').
7. The continuous sand-discharging and blockage-removing process system for the oil and water wells as claimed in claim 1, which is characterized in that: and a safety valve II (6-3) is arranged between a buffer bag (6-2) of the reciprocating booster pump (6) and a pump outlet valve (6-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635078.9U CN209817976U (en) | 2019-05-06 | 2019-05-06 | Continuous sand-discharging and blockage-removing process system for oil well and water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920635078.9U CN209817976U (en) | 2019-05-06 | 2019-05-06 | Continuous sand-discharging and blockage-removing process system for oil well and water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209817976U true CN209817976U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920635078.9U Expired - Fee Related CN209817976U (en) | 2019-05-06 | 2019-05-06 | Continuous sand-discharging and blockage-removing process system for oil well and water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209817976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839224A (en) * | 2023-02-14 | 2023-03-24 | 陇东学院 | Chemical reagent injection device for oil field |
-
2019
- 2019-05-06 CN CN201920635078.9U patent/CN209817976U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839224A (en) * | 2023-02-14 | 2023-03-24 | 陇东学院 | Chemical reagent injection device for oil field |
| CN115839224B (en) * | 2023-02-14 | 2023-04-25 | 陇东学院 | Chemical reagent injection device for oil field |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 |