CN206636547U - Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well - Google Patents
Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well Download PDFInfo
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- CN206636547U CN206636547U CN201720241373.7U CN201720241373U CN206636547U CN 206636547 U CN206636547 U CN 206636547U CN 201720241373 U CN201720241373 U CN 201720241373U CN 206636547 U CN206636547 U CN 206636547U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000002347 injection Methods 0.000 title claims abstract description 36
- 239000007924 injection Substances 0.000 title claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 239000003921 oil Substances 0.000 claims description 97
- 241000252254 Catostomidae Species 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 239000010779 crude oil Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000001808 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 53
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well, belong to field of oilfield exploitation, it is made up of sleeve pipe, upper oil pipe, top cross-channel body, lower oil pipe, screw pump supercharging device, water-oil separating swirl-flow devices, downhole oil-water separation re-injection and lifting device, it is characterised in that：Upper oil pipe, top cross-channel body, lower oil pipe, screw pump supercharging device, water-oil separating swirl-flow devices, downhole oil-water separation re-injection and lifting device are arranged in sleeve pipe, and screw pump supercharging device is connected with water-oil separating swirl-flow devices by top cross-channel body；Water-oil separating swirl-flow devices are connected with downhole oil-water separation re-injection device by lower oil pipe, and water-oil separating swirl-flow devices are connected with downhole oil-water separation lifting device by upper and lower outer oil nozzle.The design that two single-screw (single screw) pumps are arranged symmetrically in the axial direction make it that being pressurized caused axial force cancels out each other, and reduces limitation of the oil well depth to oily water separation technique, special runner causes part processing cost to substantially reduce.
Description
Technical field
Patent of the present invention is related to field of oilfield exploitation, is a kind of downhole oil-water separation device, especially suitable for deep-well and height
Oily-water seperating equipment under a kind of surface drive screw pump wells of re-injection pressure well.
Background technology
Downhole oil-water separation technology be emerging in recent years one efficiently, the new technology of energy-saving and environmental protection.Can be in same well
It is interior to carry out the separating of the producing of oil water mixture, oil and water, the lifting of oil and the re-injection of output water.Current existing downhole oil
Water separating system, runner is complicated and changeable, and this make it that resistance suffered by the fluid after supercharging is larger, and the boosting capability of booster pump is proposed
Very high requirement, while the complexity of runner also causes breakdown maintenance to become difficult, in addition existing oil-water separation system by
The influence of system itself pressure when failing to solve fluid supercharging, axial force caused by hydraulic load can only be by hollow oil pumping
Bar is offset, and this strictly limits the applicable depth of downhole oil-water separation system.The present invention proposes one kind and is applied to deep-well and height
Ground driving double-screw pump downhole oil-water separation device under re-injection pressure, runner is simple, screw pump connection and reasonable arrangement, operation detection
It is convenient.
The content of the invention
It is an object of the invention to provide a kind of runner it is simple, applied to deep-well and the downhole oil moisture of high re-injection pressure well
From device.
Technical problem solved by the invention is：The configuration of screw pump supercharging device, water-oil separating swirl-flow devices, downhole oil
Water separates the design of the connected mode and internal structure between re-injection and lifting device each several part, and the technical scheme of use is such as
Under：Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well, by sleeve pipe, upper oil pipe, top cross-current
Road body, lower oil pipe, screw pump supercharging device, water-oil separating swirl-flow devices, downhole oil-water separation re-injection and lifting device form, its
It is characterised by：Upper oil pipe, top cross-channel body, lower oil pipe, screw pump supercharging device, water-oil separating swirl-flow devices, downhole oil
Water separates re-injection and is arranged on lifting device in sleeve pipe, and screw pump supercharging device is intersected with water-oil separating swirl-flow devices by top
Runner body connects；Water-oil separating swirl-flow devices are connected with downhole oil-water separation re-injection device by lower oil pipe, water-oil separating eddy flow
Device is connected with downhole oil-water separation lifting device by upper and lower outer oil nozzle；
The screw pump supercharging device by sucker rod, flow path structure of turning back, upper outer shell, upper single-screw (single screw) pump, upper inner housing,
Flexible axle, middle inner housing, lower shell body, lower inner housing and lower single-screw (single screw) pump composition, sucker rod are connected with upper single-screw (single screw) pump, are rolled over
Backflow upper end of joint and the pipe thread seal that oils, and flow path structure bottom diameter of turning back coordinates with the sealing of upper single-screw (single screw) pump, turns back
Flow path structure lower end external diameter, upper inner housing upper end external diameter and upper outer shell thread seal, annular fiowpath in composition, upper inner housing,
Lower inner housing coordinates with middle inner housing, and annular fiowpath in composition, lower inner housing lower end coordinates with top cross-channel body, lower casing
Body upper end and upper inner housing thread seal, lower end and top cross-channel body thread seal, sucker rod and upper single-screw (single screw) pump upper end
Connection, upper single-screw (single screw) pump upper end and flow path structure coaxial line cooperation of turning back, lower end coordinate with upper inner housing coaxial line, lower single screw rod
Pump upper end coordinates with middle inner housing coaxial line, and lower single-screw (single screw) pump lower end coordinates with lower inner housing, top cross-channel body coaxial line,
Upper single-screw (single screw) pump is connected with lower single-screw (single screw) pump by flexible axle；
The water-oil separating swirl-flow devices are by bipyramid cyclone, shell body A, upper support tube, upper support base, upper positioning
Seat, middle part cross-channel body, single cone cyclone, shell body B, lower support tube, lower support base, pipe joint composition, bipyramid eddy flow
Device coordinates with top cross-channel body positioning hole, and a bipyramid cyclone bottom is inserted in positioning seat positioning hole, bipyramid eddy flow
Device support tube, the support of upper support base, upper support base coordinate with upper positioning seat, upper positioning seat and middle part cross-channel body
Axially engage, shell body A and top cross-channel body, middle part cross-channel body thread seal, form annular fiowpath, single coning stream
Device coordinates with middle part cross-channel body positioning hole, and a single cone cyclone bottom is inserted in pipe joint positioning hole, single to bore cyclone
Supported with lower support tube, lower support base, lower support base coordinates with pipe joint, shell body B and middle part cross-channel body, pipe
Joint screw thread seals；
The downhole oil-water separation re-injection and lifting device are by bypass pipe, three-way connection, upper outer oil nozzle, lower oil pipe, lower outer
Oil nozzle, Y351 packers, check valve, ball seat, screen casing, plug composition are suppressed, lower oil pipe axially engages with pipe joint, the underground
Water-oil separating re-injection device installs lower oil pipe, Y351 packers, check valve, suppresses ball seat, screen casing, plug successively from top to bottom,
End face is machined with the spout hole concentric with positioning hole in the cross-channel body of top, and the overflow of spout hole and bipyramid cyclone is stretched out
Pipe coaxial cooperation simultaneously forms sealing, and radial hole exit is machined with internal thread hydraulic fluid port, is connected with upper outer oil nozzle, and upper outer oil nozzle is another
End and bypass pipe thread connection, the other end of bypass pipe and three-way connection thread connection, end face processing in the cross-channel body of middle part
There is the spout hole concentric with positioning hole, spout hole bores the overflow protruded tube coaxial cooperation of cyclone with list and forms sealing, footpath
Internal thread hydraulic fluid port is machined with to hole exits, is connected with lower outer oil nozzle, the lower outer oil nozzle other end and bypass pipe thread connection, bypass
The other end of pipe and three-way connection thread connection, three-way connection and upward bypass pipe thread connection.
The nearly wall of flow path structure of turning back is machined with 4 straight-through looping pits, is communicated with the hollow duct of centre, leads directly to annular
Hole communicates with the upper annular fiowpath that upper outer shell is formed, the annular fiowpath of upper annular fiowpath wall processing near with upper inner housing upper end,
3 straight-through looping pits of the left demifacet in lower end nearly wall processing communicate, the straight-through looping pit of upper inner housing successively downwards with middle inner housing
3 straight-through looping pits of left demifacet, 3 straight-through looping pits of left demifacet of lower inner housing, top cross-channel body upper end it is left
Half fan-shaped hollow duct of epimere, top cross-channel body lower end are straight greatly in 3 straight-through looping pits of demifacet, top cross-channel body
Logical looping pit communicates, and top cross-channel body lower end is straight-through greatly between looping pit and bipyramid cyclone, upper support tube and shell body A
Lower annular fiowpath connection, thus form crude oil liquid enter screw pump supercharging device supercharging before passage.
The right-half plane of the middle circulation channel downward 3 straight-through looping pits with middle inner housing lower end, lower inner housing successively
3 straight-through looping pits, 3 straight-through looping pits of the top cross-channel body first half, top cross-channel body lower end it is big straight
Logical looping pit communicates, and the looping pit straight-through greatly of top cross-channel body lower end communicates with the entrance of bipyramid cyclone, thus forms
Crude oil liquid enters the passage of water-oil separating swirl-flow devices after supercharging.
3 straight-through looping pits of the nearly wall processing of the upper left demifacet in inner housing lower end, 3 with the left demifacet of middle inner housing
Straight-through looping pit communicates, and 3 straight-through looping pits of the nearly wall processing of upper inner housing lower end right-half plane are sealed by middle inner housing.
Described water-oil separating swirl-flow devices are made up of two-stage cyclones, bipyramid cyclone outlet and single cone cyclone inlet
Communicated by the tiltedly logical annular channel of the nearly wall of middle part cross-channel body.
The upper outer oil nozzle, lower outer oil nozzle are circumscribed, are easily changed.
The upper single-screw (single screw) pump, lower single-screw (single screw) pump remaining structural parameters in addition to the rotation direction difference of screw rod-bushing pair are equal
It is identical, and be arranged symmetrically in the axial direction, outlet is opposite with respect to suction inlet, in outlet end two screw rods of flexible shaft coupling
Rotor.When carrying out downhole oil-water separation operation, when there are two single-screw (single screw) pumps of same rotational speed fluid is pressurizeed, hydraulic load produces
Axial force size it is about the same, in the opposite direction, the two can cancel out each other, this cause whole sucker rod almost only by radially
The effect (influence for removing self gravitation) of shearing force, so that the pump setting depth of sucker rod can be with deeper.
The invention has the advantages that：
(1) compared with existing downhole oil-water separation device, the runner of the device is simple, easily assembling, and part manufactures
Cost is relatively low.
(2) compared with driving downhole oil-water separation device with existing ground, the device can be with automotive resistance waterpower due to itself
Excessive axial force caused by load, its active force to sucker rod is smaller, therefore can be used for deep mining, and well head pressure
It is low, it is not necessary to high voltage bearing wellhead assembly.
(3) runner that crude oil liquid enters booster pump reduces fluid into the pressure damage before cyclone close to booster pump
Lose, that is, increase the inlet pressure that fluid enters cyclone, reduce the energy consumption of booster pump, reduce many unnecessary streams
Road, operation are relatively reliable.
(4) present invention can also be adapted as experimental rig, and the fluid after will separating twice guides to ground with bypass pipe respectively,
The concentration of fluid after measurement separates twice, necessary data are provided for the geometric parameter research of oil-water separation cyclone.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is fluid flow schematic diagram；
Accompanying drawing 3 is the structural representation of screw pump supercharging device；
Accompanying drawing 4 is the A-A sectional views of flow path structure of being turned back in Fig. 3；
Accompanying drawing 5 is upper inner housing and the B-B sectional views of lower shell body in Fig. 3；
Accompanying drawing 6 is middle inner housing and the C-C sectional views of lower shell body in Fig. 3；
Accompanying drawing 7 is lower inner housing and the D-D sectional drawings of lower shell body in Fig. 3；
Accompanying drawing 8 is Fig. 3 middle and upper parts cross-channel and the E-E sectional drawings of lower shell body；
Accompanying drawing 9 is Fig. 3 middle and upper parts cross-channel and the F-F sectional drawings of lower shell body；
Accompanying drawing 10 is the G-G sectional drawings of Fig. 3 middle and upper parts cross-channel；
Accompanying drawing 11 is the H-H sectional drawings of Fig. 3 middle and upper parts cross-channel；
Accompanying drawing 12 is the I-I sectional drawings of Fig. 3 middle and lower parts cross-channel；
Accompanying drawing 13 is I partial enlarged drawings in Fig. 1；
Accompanying drawing 14 is II partial enlarged drawings in Fig. 1.
Symbol description：
1. sleeve pipe, 2. bypass pipes, oil pipe on 3., 4. sucker rods, 5. are turned back flow path structure, 6. upper outer shells, single spiral shell on 7.
Bar pump, inner housing in inner housing, 9. flexible axles, 10. on 8., 11. lower shell bodies, 12. times inner housings, 13. times single-screw (single screw) pumps,
14. three-way connection, outer oil nozzle on 15., 16. top cross-channel bodies, 17. bipyramid cyclones, 18. shell body A, support on 19.
Pipe, support base on 20., on 21. under positioning seat, 22. middle part cross-channel bodies, 23. single cone cyclones, 24. shell body B, 25.
Support tube, 26. times support bases, 27. pipe joints, 28. times oil pipes, 29. times outer oil nozzles, 30.Y351 packers, 31. check valves,
32. suppress ball seat, 33. screen casings, 34. plugs, 35. screw pump supercharging devices, 36. water-oil separating swirl-flow devices；A to q is liquid
Flow runner.
Embodiment
The invention will be further described with example below in conjunction with the accompanying drawings：
As represented in figures 1 through 14, oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well, by sleeve pipe
(1), upper oil pipe (3), top cross-channel body (16), lower oil pipe (28), screw pump supercharging device (35), water-oil separating eddy flow dress
(36), downhole oil-water separation re-injection and lifting device is put to form, it is characterised in that：Upper oil pipe (3), top cross-channel body
(16), lower oil pipe (28), screw pump supercharging device (35), water-oil separating swirl-flow devices (36), downhole oil-water separation re-injection are with lifting
Rise device to be arranged in sleeve pipe (1), screw pump supercharging device (35) passes through top cross-current with water-oil separating swirl-flow devices (36)
Road body (16) connects；Water-oil separating swirl-flow devices (36) are connected with downhole oil-water separation re-injection device by lower oil pipe (28), oil
Water separation swirl-flow devices (36) are connected with downhole oil-water separation lifting device by upper and lower outer oil nozzle (15,29)；
The screw pump supercharging device (35) is by sucker rod (4), flow path structure of turning back (5), upper outer shell (6), upper single spiral shell
Bar pump (7), upper inner housing (8), flexible axle (9), middle inner housing (10), lower shell body (11), lower inner housing (12) and place an order
Screw pump (13) is formed, and sucker rod (4) is connected with upper single-screw (single screw) pump (7), flow path structure of turning back (5) upper end and upper oil pipe (3) spiral shell
Line seals, and the sealing of flow path structure of turning back (5) bottom diameter and upper single-screw (single screw) pump coordinates, flow path structure of turning back (5) lower end external diameter, on
Inner housing (8) upper end external diameter and upper outer shell (6) thread seal, annular fiowpath d in composition, upper inner housing (8), lower inner housing
(12) coordinate with middle inner housing, annular fiowpath (g) in composition, lower inner housing (12) lower end is matched somebody with somebody with top cross-channel body (16)
Close, lower shell body (11) upper end and upper inner housing (8) thread seal, lower end and top cross-channel body (16) thread seal, take out
Beam hanger (4) is connected with upper single-screw (single screw) pump (7) upper end, upper single-screw (single screw) pump (7) upper end and flow path structure (5) coaxial line cooperation of turning back,
Lower end coordinates with upper inner housing (8) coaxial line, and lower single-screw (single screw) pump (13) upper end coordinates with middle inner housing (10) coaxial line, lower single spiral shell
Bar pump lower end coordinates with lower inner housing (12), top cross-channel body (16) coaxial line, upper single-screw (single screw) pump (7) and lower single-screw (single screw) pump
(13) it is connected by flexible axle (9)；
The water-oil separating swirl-flow devices (36) by bipyramid cyclone (17), shell body A (18), upper support tube (19), on
Support base (20), upper positioning seat (21), middle part cross-channel body (22), single cone cyclone (23), shell body B (24), lower branch
Stay tube (25), lower support base (26), pipe joint (27) composition, bipyramid cyclone (17) position with top cross-channel body (16)
Hole coordinates, and bipyramid cyclone (17) bottom is inserted in positioning seat (21) positioning hole, bipyramid cyclone (17) support
(19), upper support base (20) support are managed, upper support base (20) coordinates with upper positioning seat (21), upper positioning seat (21) and middle part
Cross-channel body (22) axially engages, shell body A (18) and top cross-channel body (16), middle part cross-channel body (22) screw thread
Sealing, annular fiowpath is formed, single cyclone (23) of boring coordinates with middle part cross-channel body (22) positioning hole, a single cone cyclone
(23) bottom is inserted in pipe joint (27) positioning hole, single to bore cyclone (23) lower support tube (25), lower support base (26) branch
Support, lower support base (26) coordinate with pipe joint (27), shell body B (24) and middle part cross-channel body (22), pipe joint (27)
Thread seal；
The downhole oil-water separation re-injection and lifting device by bypass pipe (2), three-way connection (14), upper outer oil nozzle (15),
Lower oil pipe (28), lower outer oil nozzle (29), Y351 packers (30), check valve (31), suppress ball seat (32), screen casing (33), plug
(34) form, lower oil pipe (28) axially engages with pipe joint (27), and the downhole oil-water separation re-injection device is from top to bottom successively
The lower oil pipe (28) of installation, Y351 packers (30), check valve (31), ball seat (32), screen casing (33), plug (34) are suppressed, top
Cross-channel body (16) inner face is machined with the spout hole concentric with positioning hole, the overflow of spout hole and bipyramid cyclone (17)
Protruded tube coaxial cooperation simultaneously forms sealing, and radial hole exit is machined with internal thread hydraulic fluid port, is connected with upper outer oil nozzle (15), upper outer
Oil nozzle (15) other end and bypass pipe (2) thread connection, the other end and three-way connection (14) thread connection of bypass pipe (2), in
Portion cross-channel body (22) inner face is machined with the spout hole concentric with positioning hole, and spout hole overflows with single cone cyclone (23)
Stream protruded tube coaxial cooperation simultaneously forms sealing, and radial hole exit is machined with internal thread hydraulic fluid port, is connected with lower outer oil nozzle (29), under
Outer oil nozzle (29) other end and bypass pipe (2) thread connection, the other end and three-way connection (14) thread connection of bypass pipe (2),
Three-way connection (14) with upward bypass pipe (2) thread connection.
The nearly wall of the flow path structure of turning back (5) is machined with 4 straight-through looping pits (d), hollow duct (f) phase with centre
Logical, straight-through looping pit (d) communicates with the upper annular fiowpath (d) that upper outer shell (6) is formed, upper annular fiowpath d and upper inner housing (8)
3 straight-through looping pits (d) of the nearly wall processing of annular fiowpath, the left demifacet in lower end of the nearly wall processing in upper end communicate, upper inner housing (8)
Straight-through looping pit (d) 3 straight-through looping pits (d) with the left demifacet of middle inner housing, left the half of lower inner housing (12) downwards successively
3 straight-through looping pits (d) in face, 3 straight-through looping pits (d) of the left demifacet in top cross-channel body (15) upper end, top intersect
Half fan-shaped hollow duct (e) of epimere, the straight-through looping pit (c) in top cross-channel body (16) lower end 3 communicate in runner body (16),
Top cross-channel body (16) the straight-through looping pit (c) in lower end 3 and bipyramid cyclone (17), upper support tube (19) and shell body A
(18) the lower annular fiowpath connection between, the passage that crude oil liquid enters before screw pump supercharging device (35) supercharging is thus formed.
The middle circulation channel (g) downward 3 straight-through looping pits (h) with middle inner housing (10) lower end, lower inner casing successively
3 straight-through looping pits (h) of the right-half plane of body (12), 3 straight-through looping pits (h) of top cross-channel body (16) first half,
The looping pit straight-through greatly of top cross-channel body (16) lower end communicates, the looping pit straight-through greatly of top cross-channel body (16) lower end
Communicated with the entrance of bipyramid cyclone (17), thus crude oil liquid enters the logical of water-oil separating swirl-flow devices (36) after composition supercharging
Road.
3 straight-through looping pits of the nearly wall processing of the left demifacet in upper inner housing (8) lower end, left half with middle inner housing (10)
3 straight-through looping pits (d) in face communicate, and 3 straight-through looping pits (d) of the nearly wall processing of upper inner housing (8) lower end right-half plane are by
Inner housing (10) seals.
Described water-oil separating swirl-flow devices (36) are made up of two-stage cyclones, bipyramid cyclone (17) outlet and single coning
Stream device (23) entrance is communicated by the direct current channel (k) of the nearly wall of middle part cross-channel body (22).
The upper outer oil nozzle (15), lower outer oil nozzle (29) are circumscribed, are easily changed.
The upper single-screw (single screw) pump (7), lower single-screw (single screw) pump (13) remaining structure in addition to the rotation direction difference of screw rod-bushing pair
Parameter all same, and be arranged symmetrically in the axial direction, outlet is opposite with respect to suction inlet, in the flexible shaft coupling two of outlet end
Individual screw rotor.When carrying out downhole oil-water separation operation, when there are two single-screw (single screw) pumps of same rotational speed fluid is pressurizeed, waterpower carries
Axial force size is about the same caused by lotus, and in the opposite direction, the two can cancel out each other, this cause whole sucker rod almost only by
To the effect (influence for removing self gravitation) of radial shear power, so that the pump setting depth of sucker rod can be with deeper.
As shown in Fig. 2 workflow is：Flow process is the high water-content crude oil liquid from producing horizon by riddling sleeve pipe
(1), in the annular space a that upper oil pipe (3), lower oil pipe (28) and Y341 packers (30) surround, by shell body A (18)
Hole enters chamber b, enters back into the runner c of top cross-channel body (16), a high water-content crude oil liquid part is by top cross-current
The runner e of road body (16), middle ring sky runner g, high water-content crude oil liquid another part warp are entered after lower single-screw (single screw) pump (13) supercharging
The runner d of inner housing (12), the runner d of middle inner housing, upper annular fiowpath d, the runner d of flow path structure of turning back (5) are crossed down, is entered
Turn back flow path structure (5) hollow duct (f), enter middle ring sky runner g, upper and lower single-screw (single screw) pump after upper single-screw (single screw) pump (7) supercharging
(7,13) the high water-content crude oil liquid after being pressurized is after middle annular fiowpath g mixing, inner housing (10) runner g, lower inner housing in
(12) runner h, top cross-channel body (16) runner h, water-oil separating processing is carried out into bipyramid cyclone (17) cavity volume i, point
The overflowing liquid separated out is through upper outer oil nozzle (15) overflow runner j, then after three-way connection (14) runner o mixing, into bypass
Pipe (2) is lifted to ground, runner k of the underflow mixed liquor through middle part cross-channel body (22), into the appearance of single cone cyclone (23)
Chamber i is further separated, and the overflowing liquid isolated enters bypass pipe (2) runner n through lower outer oil nozzle (29) overflow runner m, so
Afterwards after three-way connection (14) runner o mixing, ground is lifted into bypass pipe (2), under the underflow mixed liquor warp isolated
Oil pipe (28) runner p, then through check valve (31), suppress ball seat (32), screen casing (33), plug (34) runner q be injected into
Water layer, complete downhole oil-water separation and same-well injection water process.
For the ordinary skill in the art, according to the teachings of the present invention, do not depart from the principle of the present invention with
In the case of spirit, the changes, modifications, replacement and the modification that are carried out to embodiment still fall within protection scope of the present invention it
It is interior.
Claims (7)
1. oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well, by sleeve pipe (1), upper oil pipe (3), on
Portion's cross-channel body (16), lower oil pipe (28), screw pump supercharging device (35), water-oil separating swirl-flow devices (36), underground oil-water
Re-injection is separated to form with lifting device, it is characterised in that：Upper oil pipe (3), top cross-channel body (16), lower oil pipe (28), spiral shell
Bar pump supercharging device (35), water-oil separating swirl-flow devices (36), downhole oil-water separation re-injection and lifting device are arranged on sleeve pipe (1)
Interior, screw pump supercharging device (35) is connected with water-oil separating swirl-flow devices (36) by top cross-channel body (16)；Profit point
Be connected from swirl-flow devices (36) with downhole oil-water separation re-injection device by lower oil pipe (28), water-oil separating swirl-flow devices (36) with
Downhole oil-water separation lifting device is connected by upper and lower outer oil nozzle (15,29)；
The screw pump supercharging device (35) is by sucker rod (4), flow path structure of turning back (5), upper outer shell (6), upper single-screw (single screw) pump
(7), upper inner housing (8), flexible axle (9), middle inner housing (10), lower shell body (11), lower inner housing (12) and lower single screw rod
Pump (13) is formed, and sucker rod (4) is connected with upper single-screw (single screw) pump (7), and flow path structure of turning back (5) upper end and upper oil pipe (3) screw thread are close
Envelope, flow path structure of turning back (5) bottom diameter coordinate with the sealing of upper single-screw (single screw) pump, flow path structure of turning back (5) lower end external diameter, upper inner casing
Body (8) upper end external diameter and upper outer shell (6) thread seal, annular fiowpath d in compositions, upper inner housing (8), lower inner housing (12) and
Middle inner housing coordinates, and annular fiowpath (g) in composition, lower inner housing (12) lower end coordinates with top cross-channel body (16), lower outer
Housing (11) upper end and upper inner housing (8) thread seal, lower end and top cross-channel body (16) thread seal, sucker rod (4)
Be connected with upper single-screw (single screw) pump (7) upper end, upper single-screw (single screw) pump (7) upper end and turn back flow path structure (5) coaxial line cooperation, lower end with it is upper
Inner housing (8) coaxial line coordinates, and lower single-screw (single screw) pump (13) upper end coordinates with middle inner housing (10) coaxial line, lower single-screw (single screw) pump lower end
Coordinate with lower inner housing (12), top cross-channel body (16) coaxial line, upper single-screw (single screw) pump (7) passes through with lower single-screw (single screw) pump (13)
Flexible axle (9) is connected；
The water-oil separating swirl-flow devices (36) are by bipyramid cyclone (17), shell body A (18), upper support tube (19), upper support
Base (20), upper positioning seat (21), middle part cross-channel body (22), single cone cyclone (23), shell body B (24), lower support tube
(25), lower support base (26), pipe joint (27) composition, bipyramid cyclone (17) are matched somebody with somebody with top cross-channel body (16) positioning hole
Close, bipyramid cyclone (17) bottom is inserted in positioning seat (21) positioning hole, bipyramid cyclone (17) support tube
(19), upper support base (20) support, upper support base (20) coordinate with upper positioning seat (21), and upper positioning seat (21) is handed over middle part
Distributary road body (22) axially engages, and shell body A (18) and top cross-channel body (16), middle part cross-channel body (22) screw thread are close
Envelope, annular fiowpath is formed, single cyclone (23) of boring coordinates with middle part cross-channel body (22) positioning hole, a single cone cyclone
(23) bottom is inserted in pipe joint (27) positioning hole, single to bore cyclone (23) lower support tube (25), lower support base (26) branch
Support, lower support base (26) coordinate with pipe joint (27), shell body B (24) and middle part cross-channel body (22), pipe joint (27)
Thread seal；
The downhole oil-water separation re-injection is with lifting device by bypass pipe (2), three-way connection (14), upper outer oil nozzle (15), lower oil
Pipe (28), lower outer oil nozzle (29), Y351 packers (30), check valve (31), suppress ball seat (32), screen casing (33), plug (34)
Composition, lower oil pipe (28) are axially engaged with pipe joint (27), and the downhole oil-water separation re-injection device is installed successively from top to bottom
Lower oil pipe (28), Y351 packers (30), check valve (31), suppress ball seat (32), screen casing (33), plug (34), top intersects
Runner body (16) inner face is machined with the spout hole concentric with positioning hole, and the overflow of spout hole and bipyramid cyclone (17) is stretched out
Pipe coaxial cooperation simultaneously forms sealing, and radial hole exit is machined with internal thread hydraulic fluid port, is connected with upper outer oil nozzle (15), upper outer oil nozzle
(15) other end and bypass pipe (2) thread connection, the other end and three-way connection (14) thread connection of bypass pipe (2), middle part is handed over
Distributary road body (22) inner face is machined with the spout hole concentric with positioning hole, and spout hole and the overflow of single cone cyclone (23) are stretched
Outlet pipe coaxial cooperation simultaneously forms sealing, is connected with lower outer oil nozzle (29), lower outer oil nozzle (29) other end and bypass pipe (2) screw thread
Connection, three-way connection three-way connection (14) with upward bypass pipe (2) thread connection.
2. oily-water seperating equipment under the screw bolt well of a kind of deep-well according to claim 1 and high re-injection pressure well, its
It is characterised by：The nearly wall of the flow path structure of turning back (5) is machined with 4 straight-through looping pits (d), hollow duct (f) phase with centre
Logical, straight-through looping pit (d) communicates with the upper annular fiowpath d that upper outer shell (6) is formed, on upper annular fiowpath d and upper inner housing (8)
Hold 3 straight-through looping pits (d) of the nearly wall processing of annular fiowpath, the left demifacet in lower end of nearly wall processing to communicate, upper inner housing (8) it is straight
Logical looping pit (d) 3 straight-through looping pits (d) with the left demifacet of middle inner housing (10), a left side for lower inner housing (12) downwards successively
3 straight-through looping pits (d) of demifacet, 3 straight-through looping pits (d) of the left demifacet in top cross-channel body (16) upper end, top are handed over
Half fan-shaped hollow duct (e) of epimere, straight-through looping pit (c) phase in top cross-channel body (16) lower end 3 in distributary road body (16)
It is logical, top cross-channel body (16) the straight-through looping pit (c) in lower end 3 and bipyramid cyclone (17), upper support tube (19) and shell
Lower annular fiowpath connection between body A (18), thus form the passage that crude oil liquid enters before screw pump supercharging device (35) supercharging.
3. oily-water seperating equipment under the screw bolt well of a kind of deep-well according to claim 1 and high re-injection pressure well, its
It is characterised by：The middle circulation channel (g) downward 3 straight-through looping pits (h) with middle inner housing (10) lower end, lower inner casing successively
3 straight-through looping pits (h) of the right-half plane of body (12), 3 straight-through looping pits (h) of top cross-channel body (16) first half,
The looping pit straight-through greatly of top cross-channel body (16) lower end communicates, the looping pit straight-through greatly of top cross-channel body (16) lower end
Communicated with the entrance of bipyramid cyclone (17), thus crude oil liquid enters the logical of water-oil separating swirl-flow devices (36) after composition supercharging
Road.
4. oily-water seperating equipment under the screw bolt well of a kind of deep-well according to claim 1 or 2 and high re-injection pressure well,
It is characterized in that：3 straight-through looping pits of the nearly wall processing of the left demifacet in upper inner housing (8) lower end, with middle inner housing (10)
3 straight-through looping pits (d) of left demifacet communicate, 3 straight-through looping pits (d) of the nearly wall processing of upper inner housing (8) lower end right-half plane
Sealed by middle inner housing (10).
5. oily-water seperating equipment under the screw bolt well of a kind of deep-well according to claim 1 and high re-injection pressure well, its
It is characterised by：Described water-oil separating swirl-flow devices (36) are made up of two-stage cyclones, and bipyramid cyclone (17) outlet is bored with single
Cyclone (23) entrance is communicated by the tiltedly logical annular channel (k) of the nearly wall of middle part cross-channel body (22).
6. oily-water seperating equipment under the screw bolt well of a kind of deep-well according to claim 1 and high re-injection pressure well, its
It is characterised by：The upper outer oil nozzle (15), lower outer oil nozzle (29) are circumscribed.
7. oily-water seperating equipment under the screw bolt well of a kind of deep-well according to claim 1 and high re-injection pressure well, its
It is characterised by：The upper single-screw (single screw) pump (7), lower single-screw (single screw) pump (13) remaining knot in addition to the rotation direction difference of screw rod-bushing pair
Structure parameter all same, and be arranged symmetrically in the axial direction, outlet is opposite with respect to suction inlet, in the flexible shaft coupling of outlet end
Two screw rotors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241373.7U CN206636547U (en) | 2017-03-13 | 2017-03-13 | Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241373.7U CN206636547U (en) | 2017-03-13 | 2017-03-13 | Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206636547U true CN206636547U (en) | 2017-11-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720241373.7U Expired - Fee Related CN206636547U (en) | 2017-03-13 | 2017-03-13 | Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well |
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| Country | Link |
|---|---|
| CN (1) | CN206636547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060724A (en) * | 2017-03-13 | 2017-08-18 | 中国石油大学(华东) | Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well |
| CN109025955A (en) * | 2018-10-17 | 2018-12-18 | 西南石油大学 | A kind of underground oil-water membrane separator |
| CN113445963A (en) * | 2020-03-24 | 2021-09-28 | 中国石油天然气股份有限公司 | Process pipe column |
-
2017
- 2017-03-13 CN CN201720241373.7U patent/CN206636547U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060724A (en) * | 2017-03-13 | 2017-08-18 | 中国石油大学(华东) | Oily-water seperating equipment under the screw bolt well of a kind of deep-well and high re-injection pressure well |
| CN109025955A (en) * | 2018-10-17 | 2018-12-18 | 西南石油大学 | A kind of underground oil-water membrane separator |
| CN113445963A (en) * | 2020-03-24 | 2021-09-28 | 中国石油天然气股份有限公司 | Process pipe column |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20210313 |