CN109944579B - Pipeline type oil-gas-water separation system and separation method - Google Patents
Pipeline type oil-gas-water separation system and separation method Download PDFInfo
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- 238000000926 separation method Methods 0.000 title claims abstract description 159
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 239000007788 liquid Substances 0.000 claims abstract description 129
- 230000005484 gravity Effects 0.000 claims abstract description 11
- 239000012071 phase Substances 0.000 claims description 105
- 230000001105 regulatory effect Effects 0.000 claims description 98
- 230000009471 action Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 239000008346 aqueous phase Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 71
- 239000003921 oil Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The invention relates to a pipeline type oil-gas-water separation system and a separation method, wherein the pipeline type oil-gas-water separation system comprises: the upper sleeve structure comprises an upper outer pipe and an upper inner pipe, wherein one end of the upper inner pipe is provided with a gas phase outlet, and the top of the upper inner pipe is provided with a first inlet; the oil-phase separator comprises a middle-layer sleeve structure comprising a middle-layer outer pipe and a middle-layer inner pipe, wherein one end of the middle-layer inner pipe is provided with a liquid inlet, the other end of the middle-layer inner pipe is provided with an oil-phase outlet, the top of the middle-layer inner pipe is provided with a first outlet, and the bottom of the middle-layer inner pipe is provided with a second outlet; the lower sleeve structure comprises a lower outer pipe and a lower inner pipe, wherein one end of the lower inner pipe is provided with a water phase outlet, and the bottom of the lower inner pipe is provided with a second inlet; a first vertical pipe for communicating the upper outer pipe and the middle outer pipe; and the second vertical pipe is communicated with the middle-layer outer pipe and the lower-layer outer pipe. The pipeline type oil-gas-water separation system completely adopts a pipeline type separation technology, realizes complete separation of oil, gas and water through the functions of dynamic gravity separation and shallow pool separation, and has the advantages of small occupied area, high treatment efficiency and the like.
Description
Technical Field
The invention relates to the technical field of oil-gas-water separation, in particular to a pipeline type oil-gas-water separation system and a pipeline type oil-gas-water separation method.
Background
In the field of oil and gas exploitation of petroleum, natural gas and the like, an oil-gas-water multiphase separation system is generally required to separate the produced fluid of a production well into an oil phase, a gas phase and a water phase which reach standards. At present, the exploitation amount of land and offshore oil and gas fields is greatly increased, the water content of an oil well is higher and higher along with the continuation of exploitation, and a large amount of gas is often accompanied, so that a large pressure is brought to the existing oil-gas-water separation system, the defects of the traditional separation technology are gradually revealed, and the development of the ocean oil-gas exploitation technology is affected.
The physical separation method in the oil-gas-water multiphase separation technology mainly comprises a gravity separation method, a centrifugal separation method, an air flotation separation method, a membrane separation method, a filtration separation method and the like. In actual production, a large amount of oil-gas-water mixed liquid is required to be quickly separated, gravity separation and filtration separation are effective separation technical means, but the treatment speed is relatively low, and the equipment structure is complex and the volume is huge. The patent with the publication number of CN101810941B discloses a pipeline type oil-water separation system which adopts a ladder-shaped pipe and a cyclone pipe to form a pipe, has simple structure and quick treatment, and has better effect on the separation of oil and water phases. Patent publication No. CN104707364B discloses a pipeline type oil-water separator integrating centrifugation and gravity separation, which can realize the rapid separation of oil-water mixed liquid. The patent with the publication number of CN105031977B discloses a pipeline type oil-gas-water separation system and an application method thereof, wherein the pipeline type oil-gas-water separation system comprises gas-liquid cyclone separation, oil-water cyclone coalescence and dynamic gravity separation, and the application method thereof can realize the rapid separation of oil-gas-water mixed liquid.
In summary, the oil-gas-water separation device in oil-gas exploitation gradually develops to the directions of high efficiency, portability and the like. Therefore, the novel high-efficiency compact separator is developed, the index and the efficiency of oil-gas-water separation are improved, the load of an offshore platform is reduced, and the novel high-efficiency compact separator has important significance for the development of offshore oil engineering.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a pipeline type separation system and a separation method, which can realize the rapid and efficient separation of oil-gas-water mixed incoming liquid, have the advantages of small occupied area, high separation speed and the like, and can realize the automatic control of the oil-gas-water mixed incoming liquid separation.
The technical scheme adopted for solving the technical problems is as follows: there is provided a pipe-type oil-gas-water separation system, comprising:
the upper sleeve structure comprises an upper outer pipe and an upper inner pipe which are horizontally arranged; one end of the upper inner pipe is provided with a gas phase outlet, and the top of the upper inner pipe is provided with a first inlet;
the middle layer sleeve structure comprises a middle layer outer pipe and a middle layer inner pipe which are horizontally arranged; one end of the middle-layer inner pipe is provided with a liquid inlet, and the other end of the middle-layer inner pipe is provided with an oil phase outlet; the top of the middle-layer inner pipe is provided with a first outlet, and the bottom of the middle-layer inner pipe is provided with a second outlet;
the lower sleeve structure comprises a lower outer pipe and a lower inner pipe which are horizontally arranged; one end of the lower inner pipe is provided with a water phase outlet, and the bottom of the lower inner pipe is provided with a second inlet;
at least one first riser for communicating the upper outer tube and the middle outer tube;
and the at least one second vertical pipe is used for communicating the middle-layer outer pipe and the lower-layer outer pipe.
In some embodiments, the pipeline type oil-gas-water separation system further comprises a first regulating valve and a liquid collecting cavity which are sequentially arranged on the gas phase outlet pipeline of the upper inner pipe, a second regulating valve arranged on the oil phase outlet pipeline of the middle inner pipe, a return pipeline which is used for communicating the liquid collecting cavity with the outlet of the second regulating valve, a third regulating valve arranged on the water phase outlet pipeline of the lower inner pipe and a fourth regulating valve arranged on the return pipeline.
In some embodiments, the pipeline type oil-gas-water separation system further comprises a liquid level detector arranged in the liquid collecting cavity and an oil content analyzer arranged on an aqueous phase outlet pipeline of the lower inner pipe; the liquid level detector is respectively in communication connection with the first regulating valve and the fourth regulating valve and controls the opening degree of the corresponding valve; the oil content analyzer is respectively in communication connection with the second regulating valve and the third regulating valve, and controls the opening degree of the corresponding valve.
In some embodiments, the upper outer tube and the upper inner tube are eccentrically disposed, and a gap at an upper portion between the upper outer tube and the upper inner tube is smaller than a gap at a lower portion;
the middle outer pipe and the middle inner pipe are coaxially arranged;
the lower outer tube and the lower inner tube are eccentrically arranged, and the gap at the upper part between the lower outer tube and the lower inner tube is larger than the gap at the lower part.
In some embodiments, the ratio of the upper gap to the lower gap between the upper outer tube and the upper inner tube is 1:3 and the ratio of the upper gap to the lower gap between the lower outer tube and the lower inner tube is 3:1.
In some embodiments, the bottom of the upper outer tube is communicated with the top of the middle outer tube through a plurality of first vertical pipes which are obliquely arranged, and the bottom of the middle outer tube is communicated with the top of the lower outer tube through a plurality of second vertical pipes which are vertically arranged.
In some embodiments, the first riser has an inclination angle α of 15-45 °, a horizontal spacing of 1-1.8m, and a number of 6-12; the distance between the second vertical pipes is 1-1.8m, and the number of the second vertical pipes is 6-12.
In some embodiments, the mixing flow rate of the oil, gas and water mixture is 20-30m 3 When the volume gas content is not higher than 30% and the volume water content in the liquid phase is not higher than 60%,
the inner diameter of the upper outer pipe is 100mm, the inner diameter of the upper inner pipe is 50mm, the outer diameter of the upper inner pipe is 60mm, the diameters of the first inlets formed in the top of the upper inner pipe are 6mm, the number of the first inlets is 80, the upper gap between the upper outer pipe and the upper inner pipe is 10mm, and the lower gap is 30mm;
the inner diameter of the middle layer inner pipe is 100mm, the inner diameter of the middle layer inner pipe is 50mm, the outer diameter of the middle layer inner pipe is 60mm, the diameters of the first outlets formed in the top of the middle layer inner pipe are 6mm and 80, and the diameters of the second outlets formed in the bottom of the middle layer inner pipe are 8mm and 80;
the inner diameter of the lower layer outer pipe is 100mm, the inner diameter of the lower layer inner pipe is 50mm, the outer diameter of the lower layer inner pipe is 60mm, the diameters of the second inlets formed in the bottom of the lower layer inner pipe are 8mm, the number of the second inlets is 80, the upper gap between the lower layer outer pipe and the lower layer inner pipe is 30mm, and the lower gap is 10mm;
the inner diameter of the first riser is 50mm, the inclination angle alpha is 30 degrees, the horizontal spacing is 1m, and the number of the first risers is 6;
the second riser has an inner diameter of 50mm, a spacing of 1m and a number of 6.
The invention also provides a pipeline type oil-gas-water separation method, which aims at the pipeline type oil-gas-water separation system according to any one of the above steps, and comprises the following steps:
s1, inputting oil-gas-water mixed liquid into the pipeline type oil-gas-water separation system through a liquid inlet, performing preliminary separation in a middle-layer sleeve structure under the action of dynamic gravity separation and shallow pool separation, enabling gas phases subjected to preliminary separation to flow out from a first outlet at the top of a middle-layer inner pipe, flowing into an upper-layer sleeve structure through a first vertical pipe, performing fine separation under the action of shallow pool separation, and enabling completely separated gas phases to enter into the upper-layer inner pipe from a first inlet at the top of the upper-layer inner pipe and flow out from a gas phase outlet; the water phase which is separated primarily flows out from a second outlet at the bottom of the inner pipe of the middle layer, flows into the lower layer sleeve structure through a second vertical pipe, is separated finely through the action of shallow pool separation, and the water phase which is separated completely enters the inner pipe of the lower layer from a second inlet at the bottom of the inner pipe of the lower layer and flows out from the water phase outlet; the remaining oil phase flows out through the oil phase outlet through the middle layer inner tube.
In some embodiments, before step S1, further comprising:
s0, opening a first regulating valve on a gas phase outlet pipeline of the upper inner pipe, a second regulating valve on an oil phase outlet pipeline of the middle inner pipe and a third regulating valve on a water phase outlet pipeline of the lower inner pipe to a fully-opened position, and opening a fourth regulating valve on a return pipeline to a fully-closed position;
after step S1, the method further comprises:
s2, when the gas phase flows through a liquid collecting cavity arranged on a gas phase outlet pipeline of the upper inner pipe, the liquid collecting cavity collects liquid carried in the gas phase and flows the carried liquid into an oil phase outlet pipeline through the return pipeline and out;
s3, measuring the liquid level in the liquid collecting cavity in real time through a liquid level detector arranged in the liquid collecting cavity, and controlling the liquid level to be within a preset value H1; transmitting signals measured by the liquid level detector to the first regulating valve and the fourth regulating valve, and when the liquid level measured by the liquid level detector is higher than a preset value H1, regulating the fourth regulating valve and reducing the first regulating valve;
s4, measuring the oil content in the water phase outlet pipeline in real time through an oil content analyzer arranged on the water phase outlet pipeline of the lower inner pipe, and controlling the oil content in the water phase outlet pipeline to be within a preset value H2; transmitting signals measured by the oil content analyzer to the second regulating valve and the third regulating valve, and when the oil content measured by the oil content analyzer is higher than a preset value H2, regulating the second regulating valve and regulating the third regulating valve.
The implementation of the invention has at least the following beneficial effects: according to the pipeline type oil-gas-water separation system, through the functions of dynamic gravity separation and shallow pool separation, the middle-layer sleeve structure can realize primary separation of oil-gas-water mixing liquid, the upper-layer sleeve structure can realize further fine separation of gas and liquid after primary separation of the middle-layer sleeve structure, and the lower-layer sleeve structure can realize further fine separation of oil and water after primary separation of the middle-layer sleeve structure; the pipeline type oil-gas-water separation system completely adopts a pipeline type separation technology, realizes complete separation of oil, gas and water, has the characteristics of small occupied area, high treatment efficiency and the like, is suitable for land and offshore oil fields, is easy to install and apply to underwater, and has good industrial application prospect.
In addition, through the first regulating valve, the second regulating valve, the third regulating valve, the fourth regulating valve, the liquid collecting cavity, the return pipeline, the liquid level detector and the oil content analyzer which are arranged on each outlet pipeline, the separation process can be fully and automatically controlled, and the separated gas liquid content, the separated oil water content and the separated water oil content are controlled below preset standards.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a pipeline oil-gas-water separation system in accordance with some embodiments of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1-2 illustrate a pipeline type oil-gas-water separation system according to some embodiments of the present invention, where the pipeline type oil-gas-water separation system includes a multi-layer bifurcation pipeline separation device, and the multi-layer bifurcation pipeline separation device is used for implementing rapid and efficient separation of oil-gas-water mixing liquid, and has a liquid inlet 4 at one end for inflow of the oil-gas-water mixing liquid, a gas phase outlet 15 at the other end for outflow of separated gas phase, an oil phase outlet 25 for outflow of separated oil phase, and a water phase outlet 35 for outflow of separated water phase. The multi-layer bifurcation pipeline separation device comprises an upper layer sleeve structure 1, a middle layer sleeve structure 2 and a lower layer sleeve structure 3 which are horizontally arranged, at least one first vertical pipe 51 used for communicating the upper layer sleeve structure 1 and the middle layer sleeve structure 2, and at least one second vertical pipe 52 used for communicating the middle layer sleeve structure 2 and the lower layer sleeve structure 3. The multi-layer bifurcation pipeline separation device separates oil, gas and water by mixing oil, gas and water by a dynamic gravity separation and shallow pool sedimentation separation theory.
Specifically, the middle casing structure 2 includes a middle outer pipe 21 and a middle inner pipe 22 which are horizontally arranged, and can realize primary separation of oil, gas and water mixing for liquid mixing. Wherein, one end of the middle inner tube 22 is provided with a liquid inlet 4, and the other end is provided with an oil phase outlet 25. Preferably, the middle outer tube 21 and the middle inner tube 22 are coaxially arranged. The top of the middle inner pipe 22 is provided with a first outlet 23 for the gas phase which is primarily separated to flow out, and the bottom is provided with a second outlet 24 for the water phase which is primarily separated to flow out.
The upper sleeve structure 1 comprises an upper outer pipe 11 and an upper inner pipe 12 which are horizontally arranged, and can realize further fine separation of gas and liquid after preliminary separation of the middle sleeve structure 2. Wherein, one end of the upper inner tube 12 corresponding to the oil phase outlet 25 is provided with a gas phase outlet 15. The end of the upper sleeve structure 1 corresponding to the liquid inlet 4 can be sealed by a blind plate, or can be communicated to the middle sleeve structure 2 through the first vertical pipe 51. The top of the upper inner pipe 12 is provided with a first inlet 13 into which the separated gas phase flows. Preferably, the upper outer tube 11 and the upper inner tube 12 are eccentrically arranged, and the gap at the upper part between the upper outer tube 11 and the upper inner tube 12 is smaller than the gap at the lower part, so that the effect of the shallow pool separation theory is enhanced, and the efficiency and index of gas-liquid separation are improved. The distance of the eccentricity between the upper outer pipe 11 and the upper inner pipe 12 may be determined according to the diameters of the inner and outer pipes, and generally, the ratio of the upper gap between the upper outer pipe 11 and the upper inner pipe 12 to the lower gap is 1:3.
The lower casing structure 3 includes a lower outer pipe 31 and a lower inner pipe 32 horizontally arranged, which can realize further fine separation of oil and water after preliminary separation by the middle casing structure 2. Wherein, one end of the lower inner tube 32 corresponding to the oil phase outlet 25 is provided with an aqueous phase outlet 35. The end of the lower sleeve structure 3 corresponding to the liquid inlet 4 can be sealed by a blind plate, or can be communicated to the middle sleeve structure 2 through the second vertical pipe 52. The bottom of the lower inner pipe 32 is provided with a second inlet 34 into which the separated aqueous phase flows.
Preferably, the lower outer tube 31 and the lower inner tube 32 are eccentrically arranged, and the upper gap between the lower outer tube 31 and the lower inner tube 32 is larger than the lower gap, so that the effect of the shallow pool separation theory is enhanced, and the efficiency and index of oil-water separation are improved. The distance of eccentricity between the lower outer tube 31 and the lower inner tube 32 may be determined according to the diameters of the inner and outer tubes, and generally, the ratio of the upper gap between the lower outer tube 31 and the lower inner tube 32 to the lower gap is 3:1.
The first outlet 23, the second outlet 24, the first inlet 13, and the second inlet 34 may be through holes and/or slits to prevent backflow. Preferably, the first outlet 23 and the second outlet 24 are respectively a plurality of round holes arranged at the top and the bottom of the middle-layer inner tube 22; the first inlet 13 may be a plurality of circular holes provided at the top of the upper inner tube 12; the second inlet 34 may be a plurality of circular holes provided at the bottom of the lower inner tube 32. Wherein the number and diameter of the top openings of the middle inner tube 22 may be the same as the number and diameter of the top openings of the upper inner tube 12; the number and diameter of the bottom openings of the middle inner tube 22 may be the same as the number and diameter of the bottom openings of the lower inner tube 32. The number and diameter of the openings at the top of the middle inner pipe 22 and the number and diameter of the openings at the top of the upper inner pipe 12 can be calculated according to the gas phase volume content in the mixed oil, gas and water liquid at the liquid inlet. The number and diameter of the holes at the bottom of the middle inner pipe 22 and the number and diameter of the holes at the bottom of the lower inner pipe 32 can be calculated according to the volume content of the water phase in the oil-gas-water mixture liquid at the liquid inlet.
Preferably, the bottom of the upper outer tube 11 and the top of the middle outer tube 21 are communicated by a plurality of first risers 51 arranged in an inclined manner. The inclined design of the vertical pipe can effectively reduce the flowing resistance and promote the rapid separation of gas and liquid; and the flow field structure can be optimized, and the separation stability is improved. The number, spacing and inclination angle alpha of the first risers 51 can be calculated according to the gas phase volume content in the liquid by mixing the oil, gas and water at the liquid inlet. Typically, the number of first risers 51 is 6 to 12, the horizontal pitch is 1m to 1.8m, and the inclination angle α is 15 to 45 °. Typically, when the volumetric air content is not higher than 30% under the working conditions, the number of first risers 51 is 6, the horizontal spacing is 1m, and the inclination angle α is 30 °.
Preferably, the bottom of the middle outer tube 21 and the top of the lower outer tube 31 are in communication via a plurality of vertically disposed second risers 52. The spacing and number of the second risers 52 can be calculated from the volumetric water content of the mixed oil, gas and water in the liquid at the liquid inlet. Typically, the number of second risers 52 is 6 to 12 and the pitch is 1m to 1.8m. Typically, the number of second risers 52 is 6 and the spacing is 1m when the volumetric water content in the liquid phase at the inlet is not higher than 60%.
In other embodiments, the second riser 52 may also be inclined, and the flow field configuration may be optimized to reduce flow resistance. However, the effect of the second riser 52 being provided as an inclined riser in the oil-water separation is small relative to the effect of the first riser 51 being provided as an inclined riser in the gas-liquid separation, and the cost of processing is increased.
The separation process of the multi-layer bifurcation pipeline separation device is as follows: the oil-gas-water mixing liquid enters the middle inner pipe 22 from the liquid inlet 4 of the multi-layer bifurcation pipeline separation device, layering is generated in the flowing process under the action of dynamic gravity separation and shallow pool separation theory, the gas phase of the upper layer flows out from the first outlet 23 formed at the top of the middle inner pipe 22, and the water phase of the lower layer flows out from the second outlet 24 formed at the bottom of the middle inner pipe 22; the gas phase which is separated primarily flows into the upper sleeve structure 1 through the first vertical pipe 51, gas and liquid are further separated under the action of a shallow pool separation theory, the completely separated gas phase enters the upper inner pipe 12 through the first inlet 13 formed at the top of the upper inner pipe 12, and finally flows out through the gas phase outlet 15 of the multi-layer bifurcation pipeline separation device; the water phase which is separated primarily flows into the lower sleeve structure 3 through the second vertical pipe 52, the oil-water mixed liquid is further separated finely under the action of a shallow pool separation theory, the completely separated water phase enters the lower inner pipe 32 through the second inlet 34 arranged at the bottom of the lower inner pipe 32, and finally flows out through the water phase outlet 35 of the multi-layer bifurcation pipeline separation device; the remaining oil phase flows out from the oil phase outlet 25 of the multi-layer bifurcation pipeline separation device, thereby realizing complete separation of oil, gas and water.
The size of the inner and outer pipelines in the multi-layer bifurcation pipeline separation device can be determined according to the mixing flow and the volume content of the oil-gas-water mixing liquid. When the mixing flow of oil, gas and water is 20-30m 3 And (3) when the oil-gas-water mixture liquid with the volume gas content not higher than 30% and the volume water content not higher than 60% in the liquid phase enters the multi-layer bifurcation pipeline separation device, the dimensions of the specific embodiment are as follows:
the upper sleeve structure 1 in the multi-layer bifurcation pipeline separation device has the advantages that the inner diameter of an upper outer pipe 11 is 100mm, the inner diameter of an upper inner pipe 12 is 50mm, the outer diameter of the upper inner pipe 12 is 60mm, the diameters of first inlets 13 formed in the top of the upper inner pipe 12 are 6mm and 80 inlets are arranged, the upper gap between the upper outer pipe 11 and the upper inner pipe 12 is 10mm, and the lower gap between the upper outer pipe and the upper inner pipe 12 is 30mm;
in the middle layer sleeve structure 2 in the multi-layer bifurcation pipeline separation device, the inner diameter of the middle layer outer pipe 21 is 100mm, the inner diameter of the middle layer inner pipe 22 is 50mm, the outer diameter is 60mm, the diameters of the first outlets 23 arranged at the top of the middle layer inner pipe 22 are 6mm and 80, and the diameters of the second outlets 24 arranged at the bottom are 8mm and 80;
in the lower sleeve structure 3 of the multi-layer bifurcation pipeline separation device, the inner diameter of the lower outer pipe 31 is 100mm, the inner diameter of the lower inner pipe 32 is 50mm, the outer diameter is 60mm, the diameter of the second inlets 34 arranged at the bottom of the lower inner pipe 32 is 8mm, the number of the second inlets 34 is 80, the upper gap between the lower outer pipe 31 and the lower inner pipe 32 is 30mm, and the lower gap is 10mm;
the first vertical pipes 51 in the multi-layer bifurcation pipe separator have an inner diameter of 50mm, an inclination angle alpha of 30 degrees, a horizontal spacing of 1m, and 6 vertical pipes;
the second risers 52 in the multi-layer bifurcation separator had an inner diameter of 50mm, a spacing of 1m and a number of 6 risers.
Preferably, the pipe-type oil-gas-water separation system of the present invention may further include a liquid collecting chamber 71 installed on the gas phase outlet pipe of the multi-layered branch pipe separation apparatus, and a return pipe 72 connecting the liquid collecting chamber 71 with the oil phase outlet pipe of the multi-layered branch pipe separation apparatus. The liquid collection cavity 71 can collect the liquid carried in the gas phase outlet pipeline, and flow the carried liquid into the oil phase outlet pipeline through the return pipeline 72, so as to further improve the gas separation effect and reduce the volume liquid content in the gas to be within 0.5%. In general, the preset value of the volumetric liquid content in the gas can be appropriately adjusted.
Further, the pipeline type oil-gas-water separation system can further comprise a first regulating valve 61 installed on a gas phase outlet pipeline of the multi-layer bifurcation pipeline separation device, a second regulating valve 62 installed on an oil phase outlet pipeline of the multi-layer bifurcation pipeline separation device, a third regulating valve 63 installed on an aqueous phase outlet pipeline of the multi-layer bifurcation pipeline separation device, and a fourth regulating valve 64 installed on a return pipeline 72, so that the regulation of the flow rate of the corresponding pipelines is realized. The first, second, third, and fourth regulating valves 61, 62, 63, 64 may be manual or electric regulating valves. In some embodiments, the first regulator valve 61 and the liquid collection chamber 71 may be sequentially installed on the gas phase outlet line of the multi-layered bifurcation line separation device. The return line 72 may communicate the liquid collection chamber 71 with the outlet of the second regulating valve 62 to drain the liquid accumulated in the liquid collection chamber 71, so as to avoid the area in the liquid collection chamber 71 becoming a flow dead zone, which affects the implementation of the liquid level control method.
Preferably, the first regulating valve 61, the second regulating valve 62, the third regulating valve 63 and the fourth regulating valve 64 are all electric regulating valves, so as to realize complete automatic control of the oil-gas-water separation.
In addition, the pipeline type oil-gas-water separation system can further comprise a liquid level detector 81 arranged in the liquid collecting cavity 71 and an oil content analyzer 82 arranged on the water phase outlet pipeline of the multi-layer bifurcation pipeline separation device. The liquid level detector 81 can measure the liquid level in the liquid collecting cavity 71 in real time, and transmit the measured signals to the first regulating valve 61 and the fourth regulating valve 64, and control the opening of the corresponding valves to reduce the volume liquid content in the gas to below a preset standard (e.g. 0.5%). The oil content analyzer 82 can measure the oil content of the water phase outlet pipeline in real time, and transmit the measured signals to the second regulating valve 62 and the third regulating valve 63, and control the opening of the corresponding valves to reduce the oil content below the preset standard (such as 30 mg/L).
In some embodiments, the liquid level detector 81 may be a capacitive liquid level measurement device and the oil content analyzer 82 may be an infrared oil content online analyzer. Of course, all high-precision on-line detectors can realize the function of measurement, but certain differences exist in precision and sensitivity, and the invention only provides a specific measurement scheme, and in practice, different measurement instruments and measurement schemes can be selected according to the measurement requirements to measure one or more parameters of gas-to-liquid ratio, oil-to-liquid ratio, water-to-oil ratio, liquid level and the like.
The pipeline type oil-gas-water separation system provided by the invention completely adopts a pipeline type separation technology to realize complete separation of oil, gas and water, has the characteristics of small occupied area, high treatment efficiency and the like, and can realize complete automatic control of the separation process. The pipeline type oil-gas-water separation system has the advantages of large treatment indexes, large separation efficiency, large occupied area and the like, can well replace a tank type separation system adopted in oil-gas exploitation, can be suitable for land and offshore oil fields, is easy to install and apply to underwater, and has good industrial application prospect.
The invention also provides a pipeline type oil-gas-water separation method, which aims at the pipeline type oil-gas-water separation system and comprises the following steps:
s1, inputting oil, gas and water mixed liquid into a pipeline type oil, gas and water separation system from a liquid inlet 4, performing preliminary separation in a middle-layer sleeve structure 2 under the action of dynamic gravity separation and shallow pool separation, enabling gas phases subjected to preliminary separation to flow out from a first outlet 23 at the top of a middle-layer inner pipe 22, flow into an upper-layer sleeve structure 1 through a first vertical pipe 51, performing fine separation under the action of shallow pool separation, and enabling the completely separated gas phases to flow into an upper-layer inner pipe 12 from a first inlet 13 at the top of the upper-layer inner pipe 12 and flow out from a gas phase outlet 15; the water phase which is separated primarily flows out from the second outlet 24 at the bottom of the middle inner pipe 22, flows into the lower sleeve structure 3 through the second vertical pipe 52, is separated finely through the action of shallow pool separation, and the water phase which is separated completely enters the lower inner pipe 32 through the second inlet 34 at the bottom of the lower inner pipe 32 and flows out from the water phase outlet 35; the remaining oil phase flows out through the middle inner tube 22 via the oil phase outlet 25.
When the liquid collecting chamber 71 and the return line 72 are provided in the pipe-type oil-gas-water separation system, correspondingly, the system further includes, after step S1:
s2, when the gas phase separated by the multi-layer bifurcation pipeline separation device flows to the liquid collecting cavity 71 through the gas phase outlet pipeline, the liquid collecting cavity 71 collects the liquid carried in the gas phase, and the carried liquid flows into the oil phase outlet pipeline through the return pipeline 72 and flows out.
Preferably, the flow rates of the corresponding pipelines can be regulated through the first regulating valve 61, the second regulating valve 62, the third regulating valve 63 and the fourth regulating valve 64, so that the water content in the separated gas, the water content in the oil and the oil content in the water can be below preset standards. In a preferred embodiment, the automatic control of the operation of the pipeline type oil-gas-water separation system can be realized by the following steps, and the method further comprises the following steps before the step S1:
s0, opening a first regulating valve 61 on a gas phase outlet pipeline of the upper inner pipe 12, a second regulating valve 62 on an oil phase outlet pipeline of the middle inner pipe 22 and a third regulating valve 63 on a water phase outlet pipeline of the lower inner pipe 32 to a fully opened position, and opening a fourth regulating valve 64 on a return pipeline 72 to a fully closed position;
after step S2, it includes:
s3, measuring the liquid level in the liquid collecting cavity 71 in real time through a liquid level detector 81 arranged in the liquid collecting cavity 71, and controlling the liquid level to be within a preset value H1; transmitting signals measured by the liquid level detector 81 to the first regulating valve 61 and the fourth regulating valve 64, and when the liquid level measured by the liquid level detector 81 is higher than a preset value H1, regulating the fourth regulating valve 64 and regulating the first regulating valve 61;
s4, measuring the oil content in the water phase outlet pipeline in real time through an oil content analyzer 82 arranged on the water phase outlet pipeline of the lower inner pipe 32, and controlling the oil content to be within a preset value H2; the signal measured by the oil content analyzer 82 is transmitted to the second regulating valve 62 and the third regulating valve 63, and when the oil content measured by the oil content analyzer (82) is higher than a preset value H2, the second regulating valve 62 is turned up and the third regulating valve 63 is turned down.
The steps S0-S4 can realize complete automatic separation of oil, gas and water, industrial application is easy to realize, the volume liquid content in the separated gas is less than 0.5%, the volume water content in the oil is less than 1.0%, and the oil content in the water is less than 30mg/L. Of course, in practice, the preset values of the volume liquid content in gas, the volume liquid content in oil and the oil content in water can be appropriately adjusted according to the needs, and the volume liquid content in gas, the volume liquid content in oil and the oil content in water after separation are controlled below preset standards.
Preferably, the adjustment of the valve opening amounts of the first adjustment valve 61, the second adjustment valve 62, the third adjustment valve 63, and the fourth adjustment valve 64 in the above steps may be set to stepless fine adjustment. In other embodiments, if the first, second, third, and fourth regulating valves 61, 62, 63, 64 are manual regulating valves, manual regulation is required.
In step S3, when the liquid level is higher than the preset value H1, the first adjusting valve 61 is turned down, so as to achieve the preset gas-liquid separation effect; the fourth regulating valve 64 is enlarged, so that the return of the control signal can be realized, and the stable separation can be realized. In addition, when the liquid content in the gas phase outlet line (liquid content in the gas) is low, only the first regulating valve 61 or the fourth regulating valve 64 may be independently regulated when the liquid level is higher than the preset value H1. However, when the gas content suddenly increases, the first adjustment valve 61 and the fourth adjustment valve 64 need to be simultaneously adjusted in order to quickly reduce the gas content. Similarly, in step S4, when the oil content (oil content in water) in the aqueous phase outlet line is low, only the second regulating valve 62 or the third regulating valve 63 may be independently regulated when the oil content is higher than the preset value H2. However, when the oil content in water suddenly increases, the second control valve 62 and the third control valve 63 need to be simultaneously controlled in order to quickly reduce the oil content in water.
Furthermore, as can be seen from fig. 1, if only the second regulating valve 62 installed in the oil phase outlet pipe is independently regulated, the other valves are not moved, the oil content in the water is reduced, and the liquid level in the liquid collecting chamber is lowered. This operation may also be one of the conditions when setting up the valve linkage adjustment.
It will be appreciated that the above technical features may be used in any combination without limitation.
The foregoing examples only illustrate preferred embodiments of the invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (8)
1. A ducted oil-gas-water separation system, comprising:
the upper sleeve structure (1) comprises an upper outer pipe (11) and an upper inner pipe (12) which are horizontally arranged; one end of the upper inner pipe (12) is provided with a gas phase outlet (15), and the top of the upper inner pipe (12) is provided with a first inlet (13);
the middle layer sleeve structure (2) comprises a middle layer outer tube (21) and a middle layer inner tube (22) which are horizontally arranged; one end of the middle-layer inner pipe (22) is provided with a liquid inlet (4), and the other end is provided with an oil phase outlet (25); the top of the middle-layer inner pipe (22) is provided with a first outlet (23), and the bottom of the middle-layer inner pipe is provided with a second outlet (24);
a lower sleeve structure (3) comprising a lower outer tube (31) and a lower inner tube (32) which are horizontally arranged; one end of the lower inner pipe (32) is provided with a water phase outlet (35), and the bottom of the lower inner pipe (32) is provided with a second inlet (34);
at least one first riser (51) for communicating the upper outer tube (11) with the middle outer tube (21);
at least one second riser (52) for communicating the middle outer tube (21) with the lower outer tube (31);
the first regulating valve (61) and the liquid collecting cavity (71) are sequentially arranged on the gas phase outlet pipeline of the upper inner pipe (12);
a second regulating valve (62) installed on the oil phase outlet pipe of the middle-layer inner pipe (22);
a return line (72) connecting the liquid collection chamber (71) to the outlet of the second regulating valve (62);
a third regulating valve (63) installed on the water phase outlet pipe of the lower inner pipe (32);
a fourth regulator valve (64) mounted on the return line (72);
a liquid level detector (81) mounted in the liquid collection chamber (71); the liquid level detector (81) is respectively in communication connection with the first regulating valve (61) and the fourth regulating valve (64) and controls the opening degree of the corresponding valve;
-an oil content analyzer (82) mounted on the aqueous phase outlet line of the lower inner pipe (32); the oil content analyzer (82) is respectively in communication connection with the second regulating valve (62) and the third regulating valve (63) and controls the opening degree of the corresponding valve.
2. The pipe-type oil-gas-water separation system according to claim 1, wherein the upper outer pipe (11) and the upper inner pipe (12) are eccentrically disposed, and a gap at an upper portion between the upper outer pipe (11) and the upper inner pipe (12) is smaller than a gap at a lower portion;
the middle-layer outer tube (21) and the middle-layer inner tube (22) are coaxially arranged;
the lower outer tube (31) and the lower inner tube (32) are eccentrically arranged, and the gap at the upper part between the lower outer tube (31) and the lower inner tube (32) is larger than the gap at the lower part.
3. A pipe-type oil-gas-water separation system according to claim 2, characterized in that the ratio of the upper gap and the lower gap between the upper outer pipe (11) and the upper inner pipe (12) is 1:3, and the ratio of the upper gap and the lower gap between the lower outer pipe (31) and the lower inner pipe (32) is 3:1.
4. A pipe-type hydro-pneumatic water separation system as defined in claim 1 wherein the bottom of the upper outer pipe (11) and the top of the middle outer pipe (21) are communicated by a plurality of first risers (51) arranged obliquely, and the bottom of the middle outer pipe (21) and the top of the lower outer pipe (31) are communicated by a plurality of second risers (52) arranged vertically.
5. A pipe-type oil-gas-water separation system according to claim 4, characterized in that the first risers (51) have an inclination angle α of 15-45 °, a horizontal spacing of 1-1.8m and a number of 6-12; the spacing of the second risers (52) is 1-1.8m, and the number of the second risers is 6-12.
6. The system according to claim 1, wherein the mixing flow rate of the oil-gas-water mixture is 20-30m 3 When the volume gas content is not higher than 30% and the volume water content in the liquid phase is not higher than 60%,
the inner diameter of the upper layer outer pipe (11) is 100mm, the inner diameter of the upper layer inner pipe (12) is 50mm, the outer diameter of the upper layer inner pipe (12) is 60mm, the diameter of the first inlets (13) formed in the top of the upper layer inner pipe (12) is 6mm, the number of the first inlets is 80, the upper gap between the upper layer outer pipe (11) and the upper layer inner pipe (12) is 10mm, and the lower gap is 30mm;
the inner diameter of the middle-layer outer tube (21) is 100mm, the inner diameter of the middle-layer inner tube (22) is 50mm, the outer diameter of the middle-layer inner tube (22) is 60mm, the diameters of the first outlets (23) formed in the top of the middle-layer inner tube (22) are 6mm and 80, and the diameters of the second outlets (24) formed in the bottom of the middle-layer inner tube are 8mm and 80;
the inner diameter of the lower outer tube (31) is 100mm, the inner diameter of the lower inner tube (32) is 50mm, the outer diameter of the lower inner tube (32) is 60mm, the diameter of the second inlets (34) formed in the bottom of the lower inner tube (32) is 8mm, the number of the second inlets is 80, the upper gap between the lower outer tube (31) and the lower inner tube (32) is 30mm, and the lower gap is 10mm;
the inner diameter of the first vertical pipe (51) is 50mm, the inclination angle alpha is 30 degrees, the horizontal spacing is 1m, and the number of the first vertical pipes is 6;
the second risers (52) have an inner diameter of 50mm, a spacing of 1m and a number of 6.
7. A method of pipe-type oil-gas-water separation, characterized in that for the pipe-type oil-gas-water separation system according to any one of claims 1-6, the treatment is carried out according to the following steps:
s1, mixing oil, gas and water to obtain liquid, inputting the liquid into the pipeline type oil, gas and water separation system through a liquid inlet (4), performing preliminary separation in a middle layer sleeve structure (2) through the action of dynamic gravity separation and shallow pool separation, enabling a gas phase which is preliminarily separated to flow out from a first outlet (23) at the top of a middle layer inner pipe (22), flowing into an upper layer sleeve structure (1) through a first vertical pipe (51), performing fine separation through the action of shallow pool separation, enabling a gas phase which is completely separated to enter into the upper layer inner pipe (12) through a first inlet (13) at the top of the upper layer inner pipe (12), and flowing out through a gas phase outlet (15); the water phase which is separated preliminarily flows out from a second outlet (24) at the bottom of the middle-layer inner pipe (22), flows into the lower-layer sleeve structure (3) through a second vertical pipe (52), is separated finely through the action of shallow pool separation, and the water phase which is separated completely enters the lower-layer inner pipe (32) through a second inlet (34) at the bottom of the lower-layer inner pipe (32) and flows out from a water phase outlet (35); the remaining oil phase flows out through the oil phase outlet (25) through the middle inner pipe (22).
8. The method of pipe-in-pipe oil-gas-water separation according to claim 7, further comprising, before step S1:
s0, opening a first regulating valve (61) on a gas phase outlet pipeline of the upper inner pipe (12), a second regulating valve (62) on an oil phase outlet pipeline of the middle inner pipe (22) and a third regulating valve (63) on a water phase outlet pipeline of the lower inner pipe (32) to a fully opened position, and opening a fourth regulating valve (64) on a return pipeline (72) to a fully closed position;
after step S1, the method further comprises:
s2, when the gas phase flows through a liquid collecting cavity (71) arranged on a gas phase outlet pipeline of the upper inner pipe (12), the liquid collecting cavity (71) collects liquid carried in the gas phase and flows the carried liquid into an oil phase outlet pipeline through the return pipeline (72) and flows out;
s3, measuring the liquid level in the liquid collecting cavity (71) in real time through a liquid level detector (81) arranged in the liquid collecting cavity (71), and controlling the liquid level to be within a preset value H1; transmitting signals measured by the liquid level detector (81) to the first regulating valve (61) and the fourth regulating valve (64), and when the liquid level measured by the liquid level detector (81) is higher than a preset value H1, regulating the fourth regulating valve (64) and regulating the first regulating valve (61) to be smaller;
s4, measuring the oil content in the water phase outlet pipeline in real time through an oil content analyzer (82) arranged on the water phase outlet pipeline of the lower inner pipe (32), and controlling the oil content to be within a preset value H2; transmitting signals measured by the oil content analyzer (82) to the second regulating valve (62) and the third regulating valve (63), and when the oil content measured by the oil content analyzer (82) is higher than a preset value H2, regulating the second regulating valve (62) and regulating the third regulating valve (63).
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| CN111467839A (en) * | 2020-04-21 | 2020-07-31 | 西南石油大学 | Oil-gas-water net pipe type multistage separation device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1044711A1 (en) * | 1999-04-12 | 2000-10-18 | Shell Internationale Researchmaatschappij B.V. | Device for separating a mixture of fluids |
| CN204159074U (en) * | 2014-07-14 | 2015-02-18 | 崔斌 | A kind of oil water separator |
| CN105031977A (en) * | 2015-08-03 | 2015-11-11 | 中国科学院力学研究所 | Oil gas and water multi-phase separating system and application method thereof |
| CN106186387A (en) * | 2015-04-29 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of separation equipment and method for separating and processing |
| CN108018071A (en) * | 2017-12-21 | 2018-05-11 | 上海兴全电力技术有限公司 | Ultrasonic emulsion breaking oil gas water separator and separation method |
| CN210068124U (en) * | 2019-03-28 | 2020-02-14 | 中国海洋石油集团有限公司 | Pipeline type oil-gas-water separation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0518284A2 (en) * | 2004-11-24 | 2008-11-11 | Shell Int Research | apparatus for substantially separating a two-phase flow into a gaseous component and a liquid component, for substantially separating a mixture flow into a liquid component and at least one other liquid component and a gaseous component, and for substantially separating a mixture flow into component parts. based on the densities of component parts, a system for substantially separating a mixture flow into component parts, and methods for substantially separating a buffer flow and for designing a separator for substantially separating a buffer flow. |
-
2019
- 2019-03-28 CN CN201910245011.9A patent/CN109944579B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1044711A1 (en) * | 1999-04-12 | 2000-10-18 | Shell Internationale Researchmaatschappij B.V. | Device for separating a mixture of fluids |
| CN204159074U (en) * | 2014-07-14 | 2015-02-18 | 崔斌 | A kind of oil water separator |
| CN106186387A (en) * | 2015-04-29 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of separation equipment and method for separating and processing |
| CN105031977A (en) * | 2015-08-03 | 2015-11-11 | 中国科学院力学研究所 | Oil gas and water multi-phase separating system and application method thereof |
| CN108018071A (en) * | 2017-12-21 | 2018-05-11 | 上海兴全电力技术有限公司 | Ultrasonic emulsion breaking oil gas water separator and separation method |
| CN210068124U (en) * | 2019-03-28 | 2020-02-14 | 中国海洋石油集团有限公司 | Pipeline type oil-gas-water separation system |
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