CN108434787B - Tubular oil-water separation device - Google Patents
Tubular oil-water separation device Download PDFInfo
- Publication number
- CN108434787B CN108434787B CN201810468658.3A CN201810468658A CN108434787B CN 108434787 B CN108434787 B CN 108434787B CN 201810468658 A CN201810468658 A CN 201810468658A CN 108434787 B CN108434787 B CN 108434787B
- Authority
- CN
- China
- Prior art keywords
- oil
- tube
- oil outlet
- flow
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0217—Separation of non-miscible liquids by centrifugal force
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a tubular oil-water separation device which comprises a tube shell, wherein the upper end of the tube shell is a separated water outlet, the lower end of the tube shell is a mixed liquid inlet, a spinner and a deswirler which are coaxially arranged with the tube shell are arranged in the tube shell from bottom to top, a gap is arranged between the spinner and the deswirler, the spinner and the deswirler are respectively provided with an external guide vane and a central through-flow tube, the rotation directions of the spinner and the external guide vane of the deswirler are opposite, the central through-flow tube is opposite, the lower end of the central through-flow tube of the spinner is connected with an oil outlet pipe through a lower oil outlet bridge, and the upper end of the central through-flow tube of the deswirler is connected with the oil outlet pipe through an upper oil outlet. The invention can improve the separation efficiency and stabilize the rotating flow field, can adjust the oil output amount aiming at the liquid inlet with different oil contents, ensures the highest concentration of the output oil, and can select a proper flow division ratio by controlling the adjusting valve in the working barrel, thereby improving the oil-water separation efficiency.
Description
Technical Field
The invention relates to oil exploitation equipment, in particular to a tubular oil-water separation device which can be used underground and on the ground to realize oil-water separation.
Background
Oil-water underground separation is a new oilfield liquid extraction treatment technology, an oil-water separation device is arranged at the bottom of a well, most of water in separated output liquid is directly injected into a stratum, and only a part of liquid rich in oil is lifted to the ground, so that the burden of a produced liquid water treatment system is greatly reduced, corresponding huge cost can be saved, and the exploitation life of an oil well is prolonged, therefore, the technology attracts great attention in the oil industry and related technical fields in recent years.
At present, the underground oil-water separation mainly comprises a gravity type and a centrifugal type, for example, patent document CN101025080A, a method for realizing injection and production of a high water-containing well in the same well by using a multi-cup equal-flow type underground oil-water separator, natural sedimentation gravity type separation is adopted, and the problems of small discharge capacity, long sedimentation separation time and discontinuity exist; patent document CN2931780Y discloses a downhole oil-water separator which adopts a conical centrifugal separator, wherein the conical centrifugal separator has a lateral inlet, and has the problems of large flow rate, large erosion, large pressure loss, small single-stage treatment capacity and the like; patent document CN106693447A, two equidirectional cyclone separators with different density media and patent document CN105999770A, an oil-water spiral diversion separation device, the schemes disclosed by the two documents both adopt tubular cyclone separation, and the defects of small flow-splitting ratio, high oil content of separated water and the like exist, so that the requirement of high water content oil field exploitation cannot be met.
Disclosure of Invention
The invention provides a tubular oil-water separation device for solving the technical problems in the prior art, which has larger flow-dividing ratio and lower oil-containing rate of separated water or even no oil, and meets the requirement of high-water-content oil field exploitation.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: the utility model provides a tubular oil-water separator, includes the tube, the upper end of tube is the separation water export, and the lower extreme is mixed the liquid import from supreme spiral organ and the ware of separating of installing rather than coaxial setting down in the tube spiral organ with be equipped with the interval between the ware of separating, spiral organ with the ware of separating all is equipped with outside guide vane and central flow tube of crossing, spiral organ with the outside guide vane of ware of separating revolves soon to opposite, and it is relative that the flow tube is crossed at the center, the lower extreme of the central flow tube of crossing of spiral organ is through passing through and being connected with an oil pipe through lower oil-out bridge, the upper end of the central flow tube of separating the ware pass through last oil-out bridge with go out oil union coupling.
And contact lines between the guide vanes outside the rotator and the pipe shell are expanded into high-order curves on the cylindrical surface.
The upper end of the tube shell is connected with a water separating working barrel, the water separating working barrel is provided with a water outlet, a flow and pressure monitoring instrument and a flow control valve are arranged in the water separating working barrel, and the flow control valve of the water separating working barrel is controlled through a control cable.
The lower end of the central flow passing pipe of the spiral starter is connected with an oil outlet pipe sequentially through the lower oil outlet bridge and the lower oil outlet working barrel, a flow and pressure monitoring instrument and a flow control valve are arranged in the lower oil outlet working barrel, and the flow control valve of the lower oil outlet working barrel is controlled through a control cable.
The upper end of the central flow passing pipe of the despin device is connected with the oil outlet pipe sequentially through the upper oil outlet bridge and the upper oil outlet working barrel, a flow and pressure monitoring instrument and a flow control valve are arranged in the upper oil outlet working barrel, and the flow control valve of the upper oil outlet working barrel is controlled through a control cable.
The invention has the advantages and positive effects that: adopt the spinner and the despirator to act on oil-water mixture simultaneously, improved separation efficiency and stabilized rotatory flow field simultaneously, can adjust out oil content to the feed liquor of different oil contents in addition, realize three kinds of different oil channels's interconversion, guarantee that the concentration of producing oil is the highest to can select suitable split flow ratio through the governing valve in the control working barrel, promote oil-water separation efficiency, and then make oil-water separator split flow ratio bigger, the separation water oiliness rate is lower or even does not contain oil. The invention can be suitable for a larger displacement variation range, meets the requirement of high-water-content oil field exploitation, has the characteristics of high adaptability, high treatment efficiency and the like, and can be widely used for oil-water separation in the underground and on the ground.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a control cable, 2, a water separation working barrel, 3, a water outlet, 4 a derotator, 5, a tube shell, 6, a derotator, 7, a mixed liquid inlet, 8, an upper oil outlet working barrel, 9, an upper oil outlet bridge, 10, an oil outlet pipe, 11, a lower oil outlet working barrel, 12 and a lower oil outlet bridge.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1, a tubular oil-water separation device includes a tube shell 5, the upper end of the tube shell 5 is a separated water outlet, the lower end of the tube shell is a mixed liquid inlet 7, a spinner 6 and a derotator 4 coaxially arranged with the tube shell are installed in the tube shell 5 from bottom to top, a space is provided between the spinner 6 and the derotator 4, the spinner 6 and the derotator 4 are both provided with external guide vanes and a central flow passage, the rotation directions of the spinner 6 and the external guide vanes of the derotator 4 are opposite, the central flow passage is opposite, the lower end of the central flow passage of the spinner 6 is connected with an oil outlet pipe 10 through a lower oil outlet bridge 12, and the upper end of the central flow passage of the derotator 4 is connected with the oil outlet pipe 10 through an upper oil outlet bridge 9.
In this embodiment, the contact line between the guide vanes outside the rotor 6 and the derotator 4 and the inside of the pipe shell 5 expands into a high-order curve on the cylindrical surface, which can improve the swirling effect. The upper end of the tube shell 5 is connected with a water separating working barrel 2, the water separating working barrel 2 is provided with a water outlet 3, a flow and pressure monitoring instrument and a flow control valve are arranged in the water separating working barrel 2, and the flow control valve of the water separating working barrel 2 is controlled through a control cable 1. The structure is used for controlling the water yield, further controlling the split ratio and improving the oil-water separation efficiency. The lower end of the central flow passing pipe of the spiral starter 6 is connected with an oil outlet pipe 10 sequentially through the lower oil outlet bridge 12 and the lower oil outlet working barrel 11, a flow and pressure monitoring instrument and a flow control valve are arranged in the lower oil outlet working barrel 11, and the flow control valve of the lower oil outlet working barrel 11 is controlled through a control cable 1. Above-mentioned structure is used for controlling the oil yield, guarantees that the concentration of producing oil is highest to can select suitable split ratio through the governing valve in the oil-out working barrel under the control, promote oil-water separation efficiency, realize that oil-water separator split ratio is bigger, the separation water oiliness is lower or even not contain oil. In a similar way, the upper end of the central flow passing pipe of the derotator 4 is connected with the oil outlet pipe 10 sequentially through the upper oil outlet bridge 9 and the upper oil outlet working barrel 8, a flow and pressure monitoring instrument and a flow control valve are arranged in the upper oil outlet working barrel 8, and the flow control valve of the upper oil outlet working barrel 8 is controlled through the control cable 1.
The working principle of the invention is as follows:
the underground oil-water mixture firstly flows into the rotator 6 from the mixed liquid inlet 7, and because the rotator 6 is provided with the guide vanes, the oil-water mixture generates tangential speed when flowing through, because the oil and water have different densities, the oil and the water obtain different centrifugal forces, the water has large density, so the distance thrown out is far and is close to the inner wall of the pipe shell, and the oil is gathered to the center to form an obvious oil core, so the water is wrapped by the oil and advances in a rotating way. After a certain distance, the fluid flows through the derotator 4, and because the direction of the guide vanes of the derotator and the spinner is opposite, and the outlet is parallel to the pipe shell 5, the high-water-content fluid close to the inner wall of the pipe shell changes from rotation to parallel flow. Thus, only the fluid between the spinner 6 and the spinner 4 is rotating, the oil with lower density is strictly controlled near the center line of the section to form a section of thin and long oil core, and the central overflow pipe on the spinner 6 and the spinner 4 is connected with the oil outlet pipe 10, so that the oil core with high concentration can flow out. And the oil core outflow channel can be controlled by adjusting the overflow channels of the upper oil outlet working cylinder 8 and the lower oil outlet working cylinder 11. When the oil content of the underground oil-water mixture is high, the formed oil core is thick, and at the moment, the overflowing channels of the upper oil outlet working cylinder 8 and the lower oil outlet working cylinder 11 can be opened simultaneously, and oil is discharged and flows into the oil outlet pipe 10; when the oil content of the underground oil-water mixture is reduced, the formed oil core is medium in thickness, at the moment, only the overflowing channel of the lower oil outlet working barrel 11 can be opened, and the oil core only flows into the oil outlet pipe 10 from the lower oil outlet bridge 12; when the oil content of the underground oil-water mixture is further reduced and the formed oil core is thinner, only the overflowing channel of the upper oil outlet working barrel 8 can be opened at the moment, and the oil core only flows into the oil outlet pipe 10 from the upper oil outlet bridge 9. The oil content of the separated water is reduced to a low level and can reach the standard of direct reinjection into the stratum, and the separated water is reinjected into the stratum through the water separating working cylinder 2 and the water outlet 3 thereof.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (5)
1. The utility model provides a tubular oil-water separator, includes the tube, its characterized in that, the upper end of tube is the separation water export, and the lower extreme is for mixing liquid import follow supreme spiral shell and the despirator rather than coaxial setting up of installing down in the tube spiral shell with be equipped with the interval between the despirator, spiral shell with despirator all is equipped with outside guide vane and central flow tube of crossing, spiral shell with despirator outside guide vane revolves to opposite, and central flow tube of crossing is relative, the lower extreme of flow tube is crossed through lower oil-out bridge to the center of spiral shell is connected with play oil pipe, the upper end of the central flow tube of crossing of despirator pass through last oil-out bridge with go out oil union coupling.
2. The tubular oil-water separator according to claim 1, wherein the contact line between the guide vanes outside the rotor and the inside of the shell tube is developed into a high-order curve on the cylindrical surface.
3. The tubular oil-water separator according to claim 1, wherein the upper end of the shell is connected to a water separating cylinder, the water separating cylinder is provided with a water outlet, a flow and pressure monitoring instrument and a flow control valve are arranged in the water separating cylinder, and the flow control valve of the water separating cylinder is controlled by a control cable.
4. The tubular oil-water separator according to claim 1, wherein the lower end of the central flow-through tube of the cyclone is connected to the oil outlet tube sequentially through the lower oil outlet bridge and the lower oil outlet working cylinder, a flow and pressure monitoring instrument and a flow control valve are disposed in the lower oil outlet working cylinder, and the flow control valve of the lower oil outlet working cylinder is controlled by a control cable.
5. The tubular oil-water separator according to claim 1, wherein the upper end of the central flow-through tube of the cyclone is connected to the oil outlet tube sequentially through the upper oil outlet bridge and the upper oil outlet working cylinder, a flow and pressure monitoring instrument and a flow control valve are arranged in the upper oil outlet working cylinder, and the flow control valve of the upper oil outlet working cylinder is controlled by a control cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468658.3A CN108434787B (en) | 2018-05-16 | 2018-05-16 | Tubular oil-water separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810468658.3A CN108434787B (en) | 2018-05-16 | 2018-05-16 | Tubular oil-water separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108434787A CN108434787A (en) | 2018-08-24 |
| CN108434787B true CN108434787B (en) | 2020-03-20 |
Family
ID=63204262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810468658.3A Active CN108434787B (en) | 2018-05-16 | 2018-05-16 | Tubular oil-water separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108434787B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804015A (en) * | 2020-07-13 | 2020-10-23 | 鲍茂食 | Spiral-flow type overground oil-water separation device |
| CN111980659B (en) * | 2020-08-03 | 2022-06-03 | 中海油能源发展股份有限公司 | Underground tubular oil-water separation device |
| CN114682397B (en) * | 2022-03-28 | 2024-03-15 | 浙江大学 | Conical liquid-liquid axial centrifugal separator and separation monitoring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346747A2 (en) * | 1988-06-15 | 1989-12-20 | Dozent Doppelzyklon- Entstaubungsanlagen Gmbh | Cyclone separator |
| JPH11200468A (en) * | 1998-01-20 | 1999-07-27 | Kubota Corp | Vertical sewer having spiral guide plate |
| CN1974024A (en) * | 2006-12-29 | 2007-06-06 | 中国石油大学(华东) | Cascade cyclone separator |
| CN201423316Y (en) * | 2009-06-22 | 2010-03-17 | 陆飞浩 | gas-liquid separator |
| CN102076422A (en) * | 2008-06-30 | 2011-05-25 | 巴西石油公司 | Cyclone separator with two gas outlets and separation method |
| JP2013210188A (en) * | 2013-06-19 | 2013-10-10 | Mitsubishi Electric Corp | Cyclone oil separator, and compression refrigerating device and air compression device equipped with the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6599422B2 (en) * | 2001-06-20 | 2003-07-29 | Maritime Solutions Technology, Inc. | Separator for liquids containing impurities |
-
2018
- 2018-05-16 CN CN201810468658.3A patent/CN108434787B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346747A2 (en) * | 1988-06-15 | 1989-12-20 | Dozent Doppelzyklon- Entstaubungsanlagen Gmbh | Cyclone separator |
| JPH11200468A (en) * | 1998-01-20 | 1999-07-27 | Kubota Corp | Vertical sewer having spiral guide plate |
| CN1974024A (en) * | 2006-12-29 | 2007-06-06 | 中国石油大学(华东) | Cascade cyclone separator |
| CN102076422A (en) * | 2008-06-30 | 2011-05-25 | 巴西石油公司 | Cyclone separator with two gas outlets and separation method |
| CN201423316Y (en) * | 2009-06-22 | 2010-03-17 | 陆飞浩 | gas-liquid separator |
| JP2013210188A (en) * | 2013-06-19 | 2013-10-10 | Mitsubishi Electric Corp | Cyclone oil separator, and compression refrigerating device and air compression device equipped with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108434787A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2301525C (en) | Improved helical separator | |
| CN102784728B (en) | Underground two-stage cyclone separator | |
| CN108434787B (en) | Tubular oil-water separation device | |
| CN102225382B (en) | Pitting oil collecting curved cyclone of overflow pipe | |
| CN102423549B (en) | Dewatering apparatus and oil-water cyclone separator of pipe type distributor oil-water separator | |
| CN102728487B (en) | Axial-flow type isodirectional outflow cyclone separator | |
| CN201184183Y (en) | De-sanding and de-gassing device of oil extraction screw pump | |
| CN108222914B (en) | Membrane material underground oil-water separation device, production pipe column and oil-water separation method | |
| CN106439137A (en) | Low shearing plunger type throttling valve used for oil production gathering and transporting | |
| CN103883305B (en) | Deepwater seabed oil and water separation and reinjection device | |
| CN105031977A (en) | Oil gas and water multi-phase separating system and application method thereof | |
| CN108561116A (en) | The adaptive Liquid liquid Separation device of trestle type downhole flow | |
| CN107288579B (en) | A kind of horizontal well automatic water control valve | |
| CN201496054U (en) | Spiral-flow type oil-water separator for oil-well pump with rod | |
| CN108894767B (en) | Upward suspension type underground oil-water separation tubular column | |
| CN104405344A (en) | Pumping assistor | |
| CN206144550U (en) | High gas -oil is than oil well gas -liquid separation system | |
| CN209195358U (en) | Wax removal system | |
| CN203584384U (en) | Underground cyclone desander with block sand plates | |
| CN210021437U (en) | Three-phase separator with spiral tube type multi-stage inlet | |
| CN204041049U (en) | The hydrocyclone downhole oil-water separation device of drive revolving vane | |
| CN216617490U (en) | Multistage overflow gas-liquid cyclone separation device | |
| CN110159247A (en) | Waterspout vortex water drainage gas production device and method | |
| CN203742579U (en) | Marine high-flow underground oil-water separator adopting parallel-connection hydrocyclones | |
| CN103835694A (en) | Marine large-flow downhole oil-water separator with parallel type whirlcones |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |