CN206246114U - A kind of high-water-cut oil-producing well produces liquid division box on the spot - Google Patents
A kind of high-water-cut oil-producing well produces liquid division box on the spot Download PDFInfo
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- CN206246114U CN206246114U CN201621092405.3U CN201621092405U CN206246114U CN 206246114 U CN206246114 U CN 206246114U CN 201621092405 U CN201621092405 U CN 201621092405U CN 206246114 U CN206246114 U CN 206246114U
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Abstract
The utility model provides a kind of high-water-cut oil-producing well and produces liquid division box on the spot,Wherein device includes buffering transition conduit,Necking down pipe,Cyclone separator,Gas separate pipeline,Upper header,Lower collecting box,Separation of oil pipe,Separate waterpipe,The necking down pipe left end connection buffering transition conduit right-hand member,Necking down pipe right-hand member is while upper header in parallel,The left end of lower collecting box,The upper header right-hand member connects separation of oil pipe,The lower collecting box right-hand member connection separates waterpipe,The upper header,Lower collecting box is parallel with one another,The separation of oil pipe,Separate waterpipe parallel with one another,One-level swirl-flow devices and two grades of swirl-flow devices are set in the necking down pipe,The cyclone separator lower end is located between one-level swirl-flow devices and two grades of swirl-flow devices by the port that gas sample tube stretches into necking down tube hub and gas sample tube,The cyclone separator upper end connects separation of oil pipe by gas separate pipeline.
Description
Technical field
The utility model is related to the three phase separation technology of oilfield produced fluid in petroleum resources exploitation and conveying technology, especially
A kind of high-water-cut oil-producing well produces liquid division box on the spot.
Background technology
In the field such as petroleum resources exploitation and conveying, the oil gas water three phase that multiple links are related to oilfield produced fluid is separated,
Oil well liquid-producing is separated into oil phase up to standard, gas phase and water phase, sell to being shipped and sold outside oily gentle realization respectively, and separate
Water is mutually most of at present to be required to carry out re-injection.At present, production major part in oil field belongs to high water-cut stage, and the moisture content of oil well liquid-producing is got over
Come higher, and be often accompanied by a small amount of gas.Traditional oil gas water three phase piece-rate system is bulky, and processing pressure is big, and produces liquid
In gas many negative effects are brought to efficiently separating for profit, while in order to reduce investment, reduction operating cost, in oil
Well well head realizes the separation and re-injection on the spot of High water cut, is the problem for being badly in need of solving at present.
The separation principle that current oily water separating equipment is used has：Gravitational settling, centrifugation, flotation, filtering, aggregation etc..Its
The middle severe difference using oily and water, is acted on by gravitational settling, realizes oil, the separation of water, is that application time is also earliest most
Universal method.
Patent CN2569538Y, CN200920270351.9, CN201020224668.1 are using Gravity Separation principle
Vertical or Horizontal oil-water separator, its core apparatus is settling tank, and prolonged nature is carried out using profit density contrast
Sedimentation, the mode for also having heating, dosing in addition accelerates oil, gas and water three phase separation in big tank, but on the whole, such point
Bulky from device, internal structure is complicated, and investment is big, and disengaging time is long, and efficiency is low, is not suitable for miniaturization with well head oil air water
Three phase separation.
Patent CN201817338U is by swash plate, walnut shell filter and the reversible fiber ball filter group of parents using one kind
Into oily-water seperating equipment.But in reality production, generally require to carry out quick separating to substantial amounts of oil gas water mixed liquid, weight
Power principle and filtering technique are all to efficiently separate technological means, but processing speed is relatively slow, and device structure complexity, volume
It is huge.
Patent CN2405660Y, CN101657263A is using the centrifugation principle of cyclone separator to oil field mining liquid
Oil, water are separated and running water, the purification of sewage.The utility model has small volume, the high, small investment of lightweight, treatment effeciency etc.
Advantage, but due to the limitation of its physical dimension, operation maintenance is difficult.
Patent CN103045295B is that the technologies such as a kind of comprehensive dynamic gravity separation, expansion separation and centrifugation are integrated
Duct type gassy water crude oil water scavenging system, but mutually processed just for the water in Produced Liquid, corresponding oil phase and gas phase
Can not be directly up to standard.
Patent CN201310755682.2 provides a kind of High-frequency electric collective oil-gas-water three-phase flow separator.Using horizontal
Tank body and high frequency rectangular ripple crude oil dehydration electric power mode are separated.Part solves in high water-content crude oil ageing oil and poly- containing height
Compound and the difficult problem of the dehydration of demulsifier crude oil.
In sum, the multi-phase separation in oil gas field engineering progressively develops with processing equipment to the direction such as efficient, light.This
The purpose of utility model be obtain a kind of simple, efficient, inexpensive, easy-operating oil and gas and water of safety from equipment.
The content of the invention
The purpose of this utility model is to provide a kind of high-water-cut oil-producing well and produces liquid division box on the spot, realizes that the height of liquid is produced in oil field
Aqueous efficiently separates, and re-injection on the spot.
The purpose of this utility model can be achieved by the following technical measures：
The high-water-cut oil-producing well produces liquid, and division box includes that buffering transition conduit, necking down pipe, cyclone separator, gas are separated on the spot
Pipeline, upper header, lower collecting box, separation of oil pipe, separation waterpipe, the necking down pipe left end connection buffering transition conduit right-hand member, contracting
Neck tube right-hand member is while upper header in parallel, the left end of lower collecting box, the upper header right-hand member connection separation of oil pipe, the lower collecting box right side
End connection separates waterpipe, and the upper header, lower collecting box are parallel with one another, and the separation of oil pipe, separation waterpipe are parallel with one another,
One-level swirl-flow devices and two grades of swirl-flow devices are set in the necking down pipe, and the cyclone separator lower end is stretched by gas sample tube
The port for entering necking down tube hub and gas sample tube is located between one-level swirl-flow devices and two grades of swirl-flow devices, the cyclonic separation
Device upper end connects separation of oil pipe by gas separate pipeline.
The purpose of this utility model can also be achieved by the following technical measures：
The buffering transition conduit middle setting down-comer, the cyclone separator also connects down-comer, takes out by exhaust tube
Pumping resistance valve is set on tracheae.
Gas separation buffer tank is set between the cyclone separator upper end and gas separate pipeline, and the gas separates slow
Rush tank inside and oil and water filters are set, oil and water filters lower end sets profit filter, and the gas separate pipeline front end is set
There is air resistance valve, the gas separate pipeline rear end is provided with gas phase control valve.
Resistance valves one are set in the necking down pipe, the resistance valves one be located at one-level swirl-flow devices and two grades of swirl-flow devices it
Between.
The necking down pipe Internal back end is cased with the horizontal drain pipe of pipe open interior and the hydrophobic pipe outer wall of pipe open interior level and contracting
Neck tube inwall forms annular space, and the horizontal drain pipe circumferential wall of pipe open interior opens up radial direction through hole, the horizontal drain pipe of pipe open interior
Upper header is connected jointly with necking down pipe rear end, and the hydrophobic pipe outer wall of pipe open interior level is by demarcation strip and necking down pipe in pipe
Wall is connected, and the necking down pipe rear end also connects lower collecting box by water phase down-comer, and water phase control valve, institute are set on water phase down-comer
State the annular space that radial communication necking down Guan Yuguan open interiors horizontal drain pipe in water phase down-comer upper end is formed.
The separation of oil pipe, separation waterpipe carry out parallel connection by separation water water return pipeline, on separation water water return pipeline
Separation water back-water valve (BWV) is set；Oily phase control valve is set on the separation of oil pipe, and the separation waterpipe front end sets separation water
Resistance valves, rear end sets and separates water control valve.
The upper header is a rectangular duct, is respectively provided with pipe inward turning streaming water-oil separating before and after rectangular duct on the pipeline of both sides
Device, rectangular duct left side pipeline middle setting first line of a couplet tank inlet threeway, first line of a couplet tank inlet threeway passes through pipe open interior level
Drain pipe connects necking down pipe, rectangular duct the right pipeline middle setting water-oil separating four-way, water-oil separating four-way connection oil phase
Separating pipe；The lower collecting box is a rectangular duct, is respectively provided with pipe inward turning streaming water-oil separating before and after rectangular duct on the pipeline of both sides
Device, rectangular duct left side pipeline middle setting lower collecting box water phase threeway, lower collecting box water phase threeway is connected by water phase down-comer
Connect necking down pipe, rectangular duct the right pipeline middle setting lower collecting box special-shaped four-way of water phase, the lower collecting box water mutually special-shaped four-way connection
Waterpipe is separated, the water-oil separating four-way connects lower collecting box water mutually special-shaped four-way by header water phase sedimentation pipe；The first line of a couplet
Case also sets up the sedimentation threeway of upper header profit, and the lower collecting box also sets up the sedimentation threeway of lower collecting box profit, the sedimentation of upper header profit
With sedimentation water, mutually pipe is connected between threeway and the sedimentation threeway of lower collecting box profit.
The pipe inward turning streaming oily-water seperating equipment includes outer tube and inner tube, and said inner tube sets swirl-flow devices, in inner tube
Also open up and be arranged symmetrically tap hole, the annular space between said inner tube and outer tube sets and separates dividing plate.
The one-level swirl-flow devices or two grades of swirl-flow devices are made up of 4-8 piece helical blades, and blade height is less than flow string
0.6-0.8 times of the entrance diameter of post, it is middle shaftless, it is fixed in the circular pipe of swirl-flow devices.
The utility model has the advantages that：
The complicated oil gas water production fluid of flow pattern is organized into outside by desired compression ring by Multi-stage spiral device, profit core exists
Interior annular flow, is separated gas by sampler, then by the way of eddy flow and header type Gravity Separation is forced
Profit is separated, the equipment for greatly reducing piece-rate system improves the separative efficiency of profit, and profit is separated,
So as to realize that well head produces liquid Dynamic Separation, and separation water is carried out into timely re-injection, reduce the defeated cost of collection, improve separation effect
Rate, small volume is cheap, convenient to promote.
The utility model utilizes swirl-flow devices, using the means of eddy flow forced flow, increased oilfield produced fluid separation suitable
With scope, stratified flow, wavy stratified flow patterns under low flow velocity are applicable not only to, apply also for the annular flow under high flow rate and play shape
Stream.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 1-1 is Fig. 1 partial enlarged drawings；
Fig. 2 is swirl-flow devices schematic diagram；
Fig. 3 is layering flow pattern in transition conduit；
Fig. 4 is pipe inward turning streaming oily-water seperating equipment schematic diagram；
Fig. 5 is the flow pattern after swirl-flow devices eddy flow；
Fig. 5-1 is the A-A profiles of Fig. 5；
Fig. 5-2 is the B-B profiles of Fig. 5.
In figure：1st, High water cut produces liquid import；2nd, down-comer；3rd, transition conduit is buffered；4th, exhaust tube；5th, pumping resistance valve；6、
Necking down pipe；7th, one-level swirl-flow devices；8th, gas sample tube；9th, cyclone separator；10th, oil and water filters；11st, profit filter；
12nd, gas separation buffer tank；13rd, air resistance valve；14th, gas separate pipeline；15th, resistance valves one；16th, two grades of swirl-flow devices；
17th, the horizontal drain pipe of pipe open interior；18th, water phase control valve；19th, water phase down-comer；20th, demarcation strip in managing；21st, first line of a couplet tank inlet
Threeway；22nd, upper header；23rd, pipe inward turning streaming oily-water seperating equipment；24th, upper header profit sedimentation threeway；25th, water-oil separating four
It is logical；26th, header water phase sedimentation pipe；27th, separation of oil pipe；28th, oily phase control valve；29th, lower collecting box water phase threeway；30th, lower collecting box
Profit settles threeway；31st, lower collecting box；32nd, the special-shaped four-way of lower collecting box water phase；33rd, waterpipe is separated；34th, separation water resistance valves；
35th, separation water water return pipeline；36th, separation water back-water valve (BWV)；37th, gas phase control valve；38th, oil phase outlet；39th, water control valve is separated；
40th, water out is separated.51st, oil mixing with water phase；52nd, gas phase.301st, the common flow pattern of production fluid；302nd, swirl-flow devices；303rd, ring-type
Flow pattern.61st, swirl-flow devices；62nd, it is arranged symmetrically tap hole；63rd, dividing plate is separated；64th, sedimentation water is mutually managed.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, not for being any limitation as to the utility model.
High-water-cut oil-producing well produces liquid division box on the spot, including buffering transition conduit 3, necking down pipe 6, cyclone separator 9, gas point
From pipeline 14, upper header 22, lower collecting box 31, separation of oil pipe 27, separation waterpipe 33, the left end of the necking down pipe 6 connection buffering
The right-hand member of transition conduit 3, necking down pipe right-hand member are while upper header 22 in parallel, the left end of lower collecting box 31, the upper header right-hand member connection oil phase
Separating pipe 27, the lower collecting box right-hand member connection separates waterpipe 33, and the upper header, lower collecting box are parallel with one another, the oil phase point
It is parallel with one another from pipe, separation waterpipe, one-level swirl-flow devices 7 and two grades of swirl-flow devices 16, the rotation are set in the necking down pipe
Stream separator lower end by the port that gas sample tube 8 stretches into necking down tube hub and gas sample tube be located at one-level swirl-flow devices and
Between two grades of swirl-flow devices, the cyclone separator upper end connects separation of oil pipe 27 by gas separate pipeline 14.
The buffering transition conduit middle setting down-comer 2, the cyclone separator also connects down-comer by exhaust tube 4,
Pumping resistance valve 5 is set on exhaust tube.
Gas separation buffer tank 12 is set between the cyclone separator upper end and gas separate pipeline, and the gas is separated
Surge tank inside sets oil and water filters 10, and oil and water filters lower end sets profit filter 11, before the gas separate pipeline
End is provided with air resistance valve 13, and the gas separate pipeline rear end is provided with gas phase control valve 37.
Resistance valves 1 are set in the necking down pipe, and the resistance valves one are located at one-level swirl-flow devices and two grades of swirl-flow devices
Between.
The Internal back end of necking down pipe 6 be cased with the horizontal drain pipe 17 of pipe open interior and the hydrophobic pipe outer wall of pipe open interior level with
Necking down inside pipe wall forms annular space, and the horizontal drain pipe circumferential wall of pipe open interior opens up radial direction through hole, and the pipe open interior level is hydrophobic
Pipe is connected upper header 22 jointly with necking down pipe rear end, and the hydrophobic pipe outer wall of pipe open interior level is by demarcation strip 20 in pipe and contracting
Neck tube inwall is connected, and the necking down pipe rear end also connects lower collecting box by water phase down-comer 19, and water phase is set on water phase down-comer
Control valve 18, the annular space that the horizontal drain pipe of the upper end radial communication necking down Guan Yuguan open interiors of the water phase down-comer 19 is formed.
The horizontal drain pipe of necking down Guan Yuguan open interiors, with the concept of two-layer pipe, be exactly the mode of tube-in-tube, inner tube adopts
With the uniform circular hole of uniform punching Φ 5-8mm, other shapes groove can also.Using the liquid in inner tube due to the original of density contrast
Cause, under gravity with inner tube flow process, the big fluid of density by inner tube bottom be constantly deposited to inner tube and
In the space of outer tube, and the small fluid of inner and outer pipes Midst density floats, and is flow back into inner tube from the upper space of inner and outer tubes,
Realize being mainly the small fluid of density in inner tube, the big fluid of density is mainly in Outer Tube, the big fluid of density is suitable
Position is flowed out, and reaches the fluid purpose that primary separation partial density has difference.
The separation of oil pipe, separation waterpipe carry out parallel connection, separation water water return pipeline by separation water water return pipeline 35
Upper setting separation water back-water valve (BWV) 36；Oily phase control valve 28 is set on the separation of oil pipe, and the separation waterpipe front end is set
Separation water resistance valves 34, rear end sets and separates water control valve 39.
The upper header is a rectangular duct, is respectively provided with pipe inward turning streaming water-oil separating before and after rectangular duct on the pipeline of both sides
Device 23, rectangular duct left side pipeline middle setting first line of a couplet tank inlet threeway 21, first line of a couplet tank inlet threeway passes through pipe open interior
The connection necking down of horizontal drain pipe 17 pipe 6, rectangular duct the right pipeline middle setting water-oil separating four-way 25, the water-oil separating four-way
Connection separation of oil pipe 27；The lower collecting box is a rectangular duct, is respectively provided with pipe inward eddy before and after rectangular duct on the pipeline of both sides
Formula oily-water seperating equipment, rectangular duct left side pipeline middle setting lower collecting box water phase threeway 29, the lower collecting box water phase threeway passes through
The connection necking down of water phase down-comer 19 pipe 6, rectangular duct the right pipeline middle setting lower collecting box special-shaped four-way 32 of water phase, the lower collecting box
Mutually special-shaped four-way connection separates waterpipe 33 to water, and the water-oil separating four-way connects lower collecting box water by header water phase sedimentation pipe 26
The special-shaped four-way of phase；The upper header also sets up the sedimentation threeway 24 of upper header profit, and the lower collecting box also sets up lower collecting box profit and sinks
Drop threeway 30, with sedimentation water, mutually pipe 64 is connected between the sedimentation threeway of upper header profit and the sedimentation threeway of lower collecting box profit.
The pipe inward turning streaming oily-water seperating equipment includes outer tube and inner tube, and said inner tube sets swirl-flow devices 61, inner tube
On also open up and be arranged symmetrically tap hole 62, the annular space between said inner tube and outer tube sets and separates dividing plate 63.
The one-level swirl-flow devices or two grades of swirl-flow devices are made up of 4-8 piece helical blades, and blade height is less than flow string
0.6-0.8 times of the entrance diameter of post, it is middle shaftless, it is fixed in the circular pipe of swirl-flow devices.
Starting point of the present utility model is to utilize to produce High water cut in liquid（80-95%）Present situation, the height of output in oil well is contained
Aquaculture solution buffers transition conduit to carrying out rectification come what is flowed by flow pattern, production fluid flow type is organized into relatively stable stratified flow, i.e.,
, in conduit upper, oil water mixture is in pipeline bottom for gas, while being extracted out portion gas in advance by the way of exhaust tube, subtracts
The pressure of few later separation device and fluctuation.The fluid after big ups and downs is eliminated to continue to be flowed along pipeline, when after reducing pipeline,
Increase produce liquid flow velocity, then in necking down pipeline pipe laying formula swirl-flow devices, the product liquid after acceleration is carried out into high speed rotation
Turn, form gas core and oil-water fluid ring structure, the gas core of aggregation is caught together with a small amount of liquid that produces using isokinetic sampling principle
To in small-sized cyclone separator, further a small amount of liquid is separated and is back in main pipeline, separate the profit after gas
Further toward downstream flow, the pipe internal lobe chip swirl-flow devices for again passing by special design flow again at a high speed mixing produce liquid in the future
Rotation, it is oily core to form kernel, and outer shroud is separation flow pattern in the pipe of water ring, now using the packing pipe of pipe open interior formula by oily core
In poly-, and outer shroud water is flowed into water phase sedimentation pipe by aperture segment, the water of the overwhelming majority is mutually separated in advance, under
In portion's header.And the also oily core of part water enters top header, top is flowed into by the threeway that liquidates of top header naturally
In symmetrical two branch of header, stream revolves at a high speed the two-stage pipe internal lobe chip swirl-flow devices that oil water mixture is set in pipe in the future
Turn, then using header centre sedimentation pipe, further by aqueous phase separation therein, and using gravitational settling principle will point
In flowing into bottom header naturally from water, realize that efficiently separating for the High water cut of liquid, and re-injection on the spot are produced in oil field.
Embodiment 1：
By taking Fig. 1 as an example, the oil well liquid-producing of extraction produces liquid import 1 and flows into down-comer 2 and buffered cross pipe 3 pairs by High water cut
Rectification is carried out come what is flowed, production fluid flow type is organized into relatively stable stratified flow, i.e. gas in conduit upper, oil water mixture exists
Pipeline bottom, while extracting portion gas out in advance by the way of exhaust tube 4, reduces pressure and the fluctuation of later separation device,
Rate of air sucked in required is controlled using pumping resistance valve 5 simultaneously, prevents oil water mixture from flowing into exhaust tube 4.Eliminate the stream after big ups and downs
Body continues to be flowed along main pipeline, after by necking down pipe 6, increases the flow velocity for producing liquid, then the pipe laying formula in necking down pipeline
One-level swirl-flow devices 7, the product liquid after acceleration is carried out into high speed rotation, form gas core and oil-water fluid ring structure, using etc. kinetic energy
Sampling theorem is produced during liquid captures small-sized cyclone separator 9 the gas core of aggregation together with a small amount of using gas sample tube 8,
Further a small amount of liquid is separated and supervisor is back to using eddy flow principle and oil and water filters 10 and profit filter 11
In road, after the gas isolated is buffered in gas separation buffer tank 12, flowed out to after air resistance valve 13 controls liquid level
In gas separate pipeline 14, and further the oil phase pipeline isolated is flowed into by gas phase control valve 37.And isolate
Oil mixing with water produce liquid further toward downstream flow, again passes by two grades of swirl-flow devices of pipe internal lobe chip 16 of special design in the future
Stream rotates at a high speed again, and it is oily core to form kernel, and outer shroud is now dredged to separate flow pattern in the pipe of water ring using pipe open interior level
During water pipe 17 gathers oily core, and outer shroud water is flowed into water phase sedimentation pipe by aperture segment, and the water of the overwhelming majority is mutually divided in advance
Separate out and, by water phase control valve 18 and water phase down-comer 19 into the header of bottom.Wherein dredged by pipe open interior level
Water and the oily core of aggregation that water pipe 17 is isolated, are separated completely by demarcation strip 20 in pipe, and ensure that the water isolated is all logical
Cross in the inflow bottom header of water phase down-comer 19.The remaining oily core containing part water enters upper by first line of a couplet tank inlet threeway 21
In header 22, in flowing into symmetrical two branch of upper header naturally by the first line of a couplet tank inlet threeway 21 of upper header 22, oil mixing with water
Stream rotates at a high speed the pipe inward turning streaming oily-water seperating equipment 23 that thing is set in pipe in the future, then settles three by upper header profit
Logical 24 and header water phase sedimentation pipe 26 further by aqueous phase separation therein, its core will be separated using the principle of gravitational settling
Water is flowed into the header of bottom naturally.The oil phase isolated is entered in separation of oil pipe 27 by water-oil separating four-way 25, is passed through
Resistance in the control header of oily phase control valve 28, by the water and water phase down-comer 19 and lower collecting box water of header water phase sedimentation pipe 26
The water of phase threeway 30 all collects into lower collecting box 31, and all in the special-shaped four-way 32 of remittance lower collecting box water phase, the water isolated leads to
The separation waterpipe 33 and separation water resistance valves 34 crossed in special-shaped four-way, at separation water water return pipeline 35, if scene collection is defeated
The water that needs are isolated blends oil return phase pipeline and is flowed in oil phase exports 38 by separation water back-water valve (BWV) 36 according to certain ratio
Go out, and pass through lower collecting box separation water and flowed out by separating water out 40 by separating water control valve 39, realize that high-water-cut oil-producing well is produced
The separation on the spot of liquid.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He all should all belong to the scope of the claims of the present utility model with the equivalence changes of patent spirit of the present utility model.
Claims (9)
1. a kind of high-water-cut oil-producing well produces liquid division box on the spot, it is characterised in that including buffering transition conduit, necking down pipe, eddy flow point
From device, gas separate pipeline, upper header, lower collecting box, separation of oil pipe, separation waterpipe, the necking down pipe left end connection buffering
Transition conduit right-hand member, necking down pipe right-hand member are while upper header in parallel, the left end of lower collecting box, the upper header right-hand member connection separation of oil
Pipe, the lower collecting box right-hand member connection separates waterpipe, and the upper header, lower collecting box are parallel with one another, the separation of oil pipe, separation
Waterpipe is parallel with one another, and one-level swirl-flow devices and two grades of swirl-flow devices, the cyclone separator lower end are set in the necking down pipe
The port for stretching into necking down tube hub and gas sample tube by gas sample tube is located at one-level swirl-flow devices and two grades of swirl-flow devices
Between, the cyclone separator upper end connects separation of oil pipe by gas separate pipeline.
2. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that described buffered
Pipe middle setting down-comer is crossed, the cyclone separator also connects down-comer, pumping resistance is set on exhaust tube by exhaust tube
Valve.
3. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that the eddy flow point
Gas separation buffer tank is set between device upper end and gas separate pipeline, and the gas separation buffer tank inside sets profit mistake
Filter, oil and water filters lower end sets profit filter, and the gas separate pipeline front end is provided with air resistance valve, the gas
Body separate pipeline rear end is provided with gas phase control valve.
4. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that the necking down pipe
Interior setting resistance valves one, the resistance valves one are located between one-level swirl-flow devices and two grades of swirl-flow devices.
5. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that the necking down pipe
Internal back end is cased with the horizontal drain pipe of pipe open interior and the hydrophobic pipe outer wall of pipe open interior level forms annular space, pipe with necking down inside pipe wall
The horizontal drain pipe circumferential wall of open interior opens up radial direction through hole, and the horizontal drain pipe of pipe open interior is connected jointly with necking down pipe rear end
Upper header, the hydrophobic pipe outer wall of pipe open interior level is connected by demarcation strip in pipe with necking down inside pipe wall, after the necking down pipe
End also connects lower collecting box by water phase down-comer, and water phase control valve, the water phase down-comer upper end footpath are set on water phase down-comer
To the annular space that the connection horizontal drain pipe of necking down Guan Yuguan open interiors is formed.
6. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that the oil phase point
Parallel connection is carried out by separation water water return pipeline from pipe, separation waterpipe, separation water back-water valve (BWV) is set on separation water water return pipeline；Institute
State and set on separation of oil pipe oily phase control valve, the separation waterpipe front end sets separation water resistance valves, rear end sets and separates
Water control valve.
7. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that the upper header
It is a rectangular duct, is respectively provided with pipe inward turning streaming oily-water seperating equipment, the rectangular duct left side before and after rectangular duct on the pipeline of both sides
Pipeline middle setting first line of a couplet tank inlet threeway, the first line of a couplet tank inlet threeway connects necking down pipe by the horizontal drain pipe of pipe open interior,
Rectangular duct the right pipeline middle setting water-oil separating four-way, water-oil separating four-way connection separation of oil pipe；The lower collecting box
It is a rectangular duct, is respectively provided with pipe inward turning streaming oily-water seperating equipment, the rectangular duct left side before and after rectangular duct on the pipeline of both sides
Pipeline middle setting lower collecting box water phase threeway, the lower collecting box water phase threeway connects necking down pipe, rectangular duct by water phase down-comer
The right pipeline middle setting lower collecting box special-shaped four-way of water phase, mutually special-shaped four-way connects separation waterpipe, the oil to the lower collecting box water
Water separates four-way and connects lower collecting box water mutually special-shaped four-way by header water phase sedimentation pipe；The upper header also sets up upper header profit
Sedimentation threeway, the lower collecting box also sets up the sedimentation threeway of lower collecting box profit, and the sedimentation threeway of upper header profit and lower collecting box profit are heavy
With sedimentation water, mutually pipe is connected between drop threeway.
8. a kind of high-water-cut oil-producing well according to claim 1 produces liquid division box on the spot, it is characterised in that the pipe inward turning
Streaming oily-water seperating equipment includes outer tube and inner tube, and said inner tube sets swirl-flow devices, also opened up in inner tube and be arranged symmetrically shunting
Hole, the annular space between said inner tube and outer tube sets and separates dividing plate.
9. a kind of high-water-cut oil-producing well according to claim 8 produces liquid division box on the spot, it is characterised in that the one-level rotation
Stream device or two grades of swirl-flow devices are made up of 4-8 piece helical blades, and blade height is less than the entrance diameter of flow string
It is 0.6-0.8 times, middle shaftless, it is fixed in the circular pipe of swirl-flow devices.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621092405.3U CN206246114U (en) | 2016-09-29 | 2016-09-29 | A kind of high-water-cut oil-producing well produces liquid division box on the spot |
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| CN201621092405.3U CN206246114U (en) | 2016-09-29 | 2016-09-29 | A kind of high-water-cut oil-producing well produces liquid division box on the spot |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882545A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | High-water-cut oil-producing well produces liquid division box and method on the spot |
| CN108518202A (en) * | 2018-03-13 | 2018-09-11 | 西南石油大学 | A kind of pit shaft Multifunction pipe-type lubricating element |
| CN112588461A (en) * | 2020-11-26 | 2021-04-02 | 东北石油大学 | Multi-stage cluster cyclone separation device for oil-water separation |
| CN113236194A (en) * | 2021-05-24 | 2021-08-10 | 中国海洋石油集团有限公司 | Oil-gas-water three-phase separation and separation transmission device and method |
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- 2016-09-29 CN CN201621092405.3U patent/CN206246114U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882545A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | High-water-cut oil-producing well produces liquid division box and method on the spot |
| CN108518202A (en) * | 2018-03-13 | 2018-09-11 | 西南石油大学 | A kind of pit shaft Multifunction pipe-type lubricating element |
| CN112588461A (en) * | 2020-11-26 | 2021-04-02 | 东北石油大学 | Multi-stage cluster cyclone separation device for oil-water separation |
| CN113236194A (en) * | 2021-05-24 | 2021-08-10 | 中国海洋石油集团有限公司 | Oil-gas-water three-phase separation and separation transmission device and method |
| CN113236194B (en) * | 2021-05-24 | 2023-02-07 | 中国海洋石油集团有限公司 | Oil-gas-water three-phase separation and separation transmission device and method |
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