CN109306862A - Downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material - Google Patents
Downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material Download PDFInfo
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- CN109306862A CN109306862A CN201710617819.6A CN201710617819A CN109306862A CN 109306862 A CN109306862 A CN 109306862A CN 201710617819 A CN201710617819 A CN 201710617819A CN 109306862 A CN109306862 A CN 109306862A
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- 238000002347 injection Methods 0.000 title claims abstract description 44
- 239000007924 injection Substances 0.000 title claims abstract description 44
- 238000000926 separation method Methods 0.000 title claims abstract description 42
- 238000000605 extraction Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 158
- 239000012528 membrane Substances 0.000 claims abstract description 21
- 239000004519 grease Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 33
- 239000008206 lipophilic material Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 239000011796 hollow space material Substances 0.000 claims description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 5
- 239000013043 chemical agent Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 77
- 239000003129 oil well Substances 0.000 description 13
- 238000012913 prioritisation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000002070 nanowire Substances 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to oil field development technical fields, more particularly to a kind of downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material, including downhole separation system and submersible electric pump injection and extraction system, downhole separation system includes oil water separator outer sleeve, rack, hydrophilic membrane module, bottom cover and water collector, and submersible electric pump injection and extraction system includes elevator pump, submersible motor and water injecting pump.Hydrophilic membrane module in downhole separation system of the invention does water-oil separating to well liquid with high-throughput, selectivity, while under the effect of the pull of water injecting pump, forming continuous separating effect.Since other impurity and oil cannot be by hydrophilic films, therefore isolated water quality is good, will not block water filling layer and cause formation damage.Separation of the hydrophilic membrane module to grease without consuming power, therefore saves high power oil-submersible motor, and without note chemical agent, ground, the equipment reduction of underground are more than half, and fixed investment substantially reduces, while saving electric power, chemical agent expense.
Description
Technical field
The present invention relates to oil field development technical field more particularly to a kind of downhole separation systems based on super hydrophilic material
With submersible electric pump injection and extraction system.
Background technique
The moisture content of the middle and later periods of oil field development, many produced liquid in oil well are higher and higher, range from 0 to 99%, crude oil
Yield declines to a great extent, and oil development has arrived the edge of marginal benefit, in order to maintain the yield in oil field, it is common practice to increase oil
The Liquid output of well increases ground water treatment capacity and equipment.But due to place, equipment, power supply, environmental protection, economy etc.
A series of problems, such as, it constrains by increasing production liquid and maintains yield and expand the water treatment capacity on ground to improve the volume increase of production capacity
Measure.Especially Offshore Platform General, space is limited, and production capacity limitation is obvious, and oil field total fluid production can not increase, and crude oil produces
After amount is reduced, bucket oil cost is ramped.When the development cost in oil well and oil field is greater than output, it has to terminate oil well or oil
Field production.
Many oil companies in the world are attempted in underground first grease initial gross separation, and the water separated is in same well
Different layers position (water layer) re-injection, remaining well liquid promotes to floor treatment.Well oil output is constant but total liquid measure reduces, this
Sample can reduce the water process load on ground, and save the cost is energy saving and environmentally friendly.Importantly, production capacity is released, to entire oil
Field is the good thinking and measure highly promoted with increase freedom degree is produced.But progress is but very slow, in the past
In 30 years, in the practical oil well test of tens mouthfuls of global wells, rarely has successful case.The reason is that water-oil separating is to utilize tradition weight
Power settles or realizes water-oil separating using high-speed rotating principle (cyclone).The gravitational settling time is long, needs large space,
Treating capacity is small, and cyclone separation needs large capacity motor (such as 660HP) or Multi-stage spiral device, and some need infuses chemical assistant
Deng.Oil-water separation is also undesirable (such as oil-containing 500ppm or so after separating), and water filling is impure, is easy pollution stratum, causes
Water layer blocking.Based on cyclone isolation technics, equipment investment and production operation expense are surprising, whole system is complicated, it is unstable, make an uproar
Sound is big, under the background of oil price depression, has lost the value of popularization.Therefore, it finds and to study new system significance great.
Summary of the invention
The present invention provides a kind of downhole separation system based on super hydrophilic material and submersible electric pump injection and extraction systems, not only
Good separating effect, it is high-efficient and at low cost.
In order to achieve the object of the present invention, used technical solution is: the downhole oil-water separation based on super hydrophilic material
Device and submersible electric pump injection and extraction system, including downhole separation system and submersible electric pump injection and extraction system, downhole separation system include
Oil water separator outer sleeve, rack, hydrophilic membrane module, bottom cover and water collector, submersible electric pump injection and extraction system include elevator pump, latent oil
Motor and water injecting pump；Rack is mounted in oil water separator outer sleeve, and hydrophilic membrane module is adhered on rack；Bottom cover is arranged in oil
The lower end of separator outer sleeve；Water collector is connected to the end of oil water separator outer sleeve；Submersible motor is separately connected up and down
Elevator pump and water injecting pump, elevator pump are arranged in oil water separator outer sleeve, and the lower section of water collector is arranged in water injecting pump.
As prioritization scheme of the invention, hydrophilic membrane module is that superhydrophilic superoleophobic separation material forms seperation film, hydrophilic
Membrane module is closely pasted on rack, has the water hole of network structure on rack, while being equipped with and supporting and fixing frame.
As prioritization scheme of the invention, the flowing that oil water separator outer sleeve, rack, bottom cover and water collector form water is logical
Road.
As prioritization scheme of the invention, elevator pump is connected with production tube, on the shell of elevator pump and production tube
Be provided with lipophilic material, lipophilic material is super oleophylic super hydrophobic material, and oil droplet and greasy filth pass through, are adhered to above, and along oil pipe,
The shell of pump flows downward.
As prioritization scheme of the invention, bottom cover is annular, and the inner ring of bottom cover and the bottom end of rack match, outside bottom cover
Ring and the hollow space of inner ring are connected with water collector.
As prioritization scheme of the invention, water collector is hollow cylindrical, and the inner prop upper end of water collector is connected with bottom cover；Collection
The column jacket upper end of hydrophone and the bottom of oil water separator outer sleeve closely connect；The outlet at bottom of water collector can be gone out with more than one
Mouthful, outlet is connected with bypass pipe cutting ferrule.
As prioritization scheme of the invention, submersible motor is connected by upper motor protecter with elevator pump, and submersible motor is logical
It crosses down motor protecter to be connected with water injecting pump, a set of motor drives the pump work of two sets of different directions simultaneously.
As prioritization scheme of the invention, elevator pump includes elevator pump inlet union；Outside the lower end of elevator pump inlet union
The inner ring of shell and bottom cover closely connects.
As prioritization scheme of the invention, water injecting pump includes inlet of water injection pump connector, and note is housed on inlet of water injection pump connector
Water adapter, the water inlet for filling the water adapter are connected with bypass pipe cutting ferrule；Water filling adapter closely surrounds inlet of water injection pump connector
On shell.
As prioritization scheme of the invention, water injecting pump includes water injecting pump outlet connection, the downhole oil based on super hydrophilic material
In the wellbore, pit shaft upper end is provided with production packer, production tube and life for separator and the installation of submersible electric pump injection and extraction system
Produce packer connection；There is desilting packer in pit shaft lower end；Water injecting pump outlet connection is connected with water-filling oil pipe, the inside of water-filling oil pipe
It is provided with check valve, the end of water-filling oil pipe is inserted into desilting packer by sealing element.
The present invention has the effect of positive: the hydrophilic membrane module in downhole separation system of the invention, have it is high-throughput,
Selectivity does water-oil separating to well liquid, only water is allowed to pass through, meanwhile, under the pull effect of water injecting pump, form continuous separation
Effect.Since other impurity and oil cannot be by hydrophilic films, therefore isolated water quality is good, will not block water filling layer and cause stratum
Injury.Separation of the hydrophilic membrane module to grease, do not need consumption power, therefore save high power oil-submersible motor (it is generally necessary to
660HP), note chemical agent is not needed yet, ground, the equipment reduction of underground are more than half, and fixed investment substantially reduces, while saving electricity
Power, chemical agent expense.And after power is reduced, noise and vibration are also substantially lowered, and system failure rate also accordingly reduces.Due to
Most water is separated, the well liquid water promoted to ground is few, alleviates the crude water treating capacity on ground, not only economic but also ring
It protects.To entire oil field, especially Offshore Platform General, the production capacity that individual well releases can increase entire field output
The total output of the freedom degree of distribution, oil field can also be improved, and extend the service life in oil field.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material；
Fig. 2 is that the mounting structure of downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material is illustrated
Figure.
Wherein: 1, oil water separator outer sleeve, 2, top cover, 3, rack, 4, hydrophilic membrane module, 5, bottom cover, 6, water collector, 7,
Bypass pipe, 8, water filling adapter, 9, production tube, 10, lipophilic material, 11, elevator pump outlet connection, 12, elevator pump, 13, mention
Liter pump inlet connector, 14, upper motor protecter, 15, submersible motor, 16, lower motor protecter, 17, inlet of water injection pump connector,
18, water injecting pump, 19, water injecting pump outlet connection, 20, check valve, 21, water-filling oil pipe, 22, sealing element, 23, desilting packer, 24,
Production packer, 25, cable connector.
Specific embodiment
As shown in Figs. 1-2, the invention discloses a kind of downhole separation system and submersible electric pump based on super hydrophilic material
Injection and extraction system, including downhole separation system and submersible electric pump injection and extraction system, downhole separation system include outside oil water separator
Sleeve 1, rack 3, hydrophilic membrane module 4, bottom cover 5 and water collector 6, submersible electric pump injection and extraction system include elevator pump 12, submersible motor
15 and water injecting pump 18；Rack 3 is mounted in oil water separator outer sleeve 1, and hydrophilic membrane module 4 is adhered on rack 3；Bottom cover 5 is set
It sets in the lower end of oil water separator outer sleeve 1；Water collector 6 is connected to the end of oil water separator outer sleeve 1；On submersible motor 15
Under be separately connected elevator pump 12 and water injecting pump 18, elevator pump 12 is arranged in oil water separator outer sleeve 1, and the setting of water injecting pump 18 exists
The lower section of water collector 6.The length of oil water separator outer sleeve 1 can according to the actual design of oil well, oil water separator outer sleeve 1
The length that length is not shorter than elevator pump 12 adds 1 meter of length again；The material requirements of oil water separator outer sleeve 1 is light, thin, constant
Shape；Oil water separator outer sleeve 1 can be formed by several sections, between connected by modes such as screw threads.
The top of oil water separator outer sleeve 1 is equipped with top cover 2, and top cover 2 is annular, the outer ring of top cover 2 and water-oil separating
1 screwed connection of device outer sleeve, well liquid enter in oil water separator outer sleeve 1 from top cover 2, and production tube 9 is logical from the center of top cover 2
It crosses, the inner ring righting production tube 9 of top cover 2.
Hydrophilic membrane module 4 is superhydrophilic superoleophobic separating film module, and water wetted material membrane module 4 is closely pasted on rack 3.
Wherein, superhydrophilic superoleophobic separating film module is made of high-throughput superhydrophilic superoleophobic material, which is to have network branch
Hold body, nano wire generated above, sizing grid 100-2000 mesh, 0.1-100 μm of nanowire length, material is copper or fiber,
Nano-material is copper oxide (current), and water can pass through, and oil and other impurity cannot pass through.Wherein, rack 3 and hydrophilic film
Component 4 can be close mating integral, it is mating after global shape be tubular, there is outer rim in the upper end of rack 3, can hang or
It is fixed on the interior step of oil water separator outer sleeve 1, the junction of the two can install sealing ring additional, and the lower end of rack 3 has interior
Frame can be connected with the inner ring of bottom cover 5, may be otherwise setting gasket, and rack 3 and hydrophilic membrane module 4 are cooperation grease
The length and joint number of separator outer sleeve 1, are easily installed, and can also be segmented, and close connection is needed at segmentation, cannot there is leakage.
Oil water separator outer sleeve 1, rack 3, bottom cover 5 and water collector 6 form the flow channel of water.
Elevator pump 12 is connected with production tube 9, is provided with lipophilic material on the shell of elevator pump 12 and production tube 9
10.The effect of separation can be increased by the way that lipophilic material 10 is arranged, oil droplet can be adsorbed by lipophilic material 10, oil droplet can glue
Be adhered to lipophilic material 10 above or enter by lipophilic material 10 space of 9 outer wall of elevator pump 12 and production tube, downwards into
Enter to elevator pump inlet union 13, the outer diameter and shape of lipophilic material 10 can be changed with disunity.
Bottom cover 5 is annular, and the inner ring of bottom cover 5 and the bottom end of rack 3 match, the outer ring of bottom cover 5 and the hollow portion of inner ring
Divide and is connected with water collector 6.Wherein, the outer ring of bottom cover 5 is covered from bottom to top on the getting out of a predicament or an embarrassing situation of oil water separator outer sleeve 1, bottom
The inner ring of lid 5 and the junction of rack 3 are provided with sealing ring, cannot reveal；The inner ring inside of bottom cover 5 and elevator pump inlet union
13 lower end closely connects, and junction cannot have leakage.
Water collector 6 is hollow cylindrical, and the inner prop upper end of water collector 6 and bottom cover 5 connect；The column jacket upper end of water collector 6 and
The bottom of oil water separator outer sleeve 1 closely connects；The outlet at bottom and bypass pipe 7 of water collector 6 connect.Wherein, water collector 6
Outlet at bottom can have multiple, then cooperate more bypass pipes 7.
Submersible motor 15 is connected by upper motor protecter 14 with elevator pump 12, and submersible motor 15 passes through lower motor protecter
16 are connected with water injecting pump 18.
Elevator pump 12 includes elevator pump inlet union 13；The lower end case of elevator pump inlet union 13 and the inner ring of bottom cover 5
Close connection.The lower end for rising the shell of pump inlet connector 13 is provided with stopping step, the seam crossing setting of stopping step and bottom cover 5
There is O-ring slot.
Water injecting pump 18 includes inlet of water injection pump connector 17, and water filling adapter 8 is housed on inlet of water injection pump connector 17, and water filling is suitable
The water inlet and bypass pipe 7 of orchestration 8 connect.Water filling adapter 8 has three functions, first is that water enters the channel of water injecting pump 18；Second is that
The housing for filling the water adapter 8 is rotary joint, can be rotated with 360 degree, convenient for connecting with bypass pipe 7；Third is that the function of righting, it can
It will not be subject to crushing with the process protecting the installation of bypass pipe 7 and going into the well.
Water injecting pump 18 includes water injecting pump outlet connection 19, downhole separation system and submersible electric pump based on super hydrophilic material
Injection and extraction system is installed in the wellbore, and pit shaft upper end is provided with production packer 24, and production tube 9 and production packer 24 connect；
There is desilting packer 23 in pit shaft lower end；Water injecting pump outlet connection 19 is connected with water-filling oil pipe 21, the inside setting of water-filling oil pipe 21
There is check valve 20, the end of water-filling oil pipe 21 is inserted into desilting packer 23 by sealing element 22.Based on super hydrophilic material
Downhole separation system and submersible electric pump injection and extraction system can be used for oil reservoir on upper layer, and water filling layer, can also in the oil well mouth of lower layer
With for filling the water layer on upper layer, oil reservoir lower layer oil well, if oil reservoir can increase by one pair in lower layer on well-completing process
Channel packer does not influence the application of the downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material.
The flow direction of well liquid of the present invention are as follows: the crude oil of payzone output, desilting packer 23 and production packer 24 it
Between form wellbore space, enter downhole separation system from top cover 2, part water separated by hydrophilic membrane module 4 and be flowed into oil
The space that separator outer sleeve 1 and rack 3 form, then enters water collector 6 by bottom cover 5 downwards, through bypass pipe 7, water filling
Adapter 8, inlet of water injection pump connector 17, are pressurized by water injecting pump 18, are arrived through water-filling oil pipe 21, sealing element 22, desilting packer 23
Fill the water layer.And oil, impurity, the water not separated flow from the top to the bottom among oil water separator, oil droplet and viscous/attached perforation of greasy filth
In lipophilic material, as liquid stream moves down, into elevator pump inlet union 13, boosted pump 12, production tube 9 is promoted to ground
Face can enter production tube 9 by lipophilic material 10.
It installs in detailed process:
(1) top cover 2 does not reside at first on oil water separator outer sleeve 1, and rack 3 and hydrophilic membrane module 4 are close together, and is
Tubular, in concrete practice, to be easily installed, rack 3 is made of several sections of systems；The top of rack 3 is covered in oil water separator housing
On the upper inner platform rank of cylinder 1.The outside of bottom cover 5 covers in the lower inner platform rank of oil water separator outer sleeve 1, and the outer annular space of bottom cover 5 is point
The channel that the water come enters water collector 6 is separated out, 5 inner ring upper surface of bottom cover and the sealing of 3 bottom screw of rack are fixed, cannot be let out
Dew.
(2) first elevator pump inlet union 13, elevator pump 12, elevator pump outlet connection 11 is bolted, promotion pump discharge
9 screwed connection bunchiness of connector 11 and production tube (if some oil wells need to fill lipophilic material 10, in production tube 9 and is promoted
The outer wall of pump 12, puts on lipophilic material 10), downhole separation system (in addition to top cover 2, water collector 6) is then inserted in pipe string, bottom
It is tightly fastened with 13 lower end of elevator pump inlet union on the inside of the inner ring of lid 5 and (cannot have leakage herein), then the interior annular space of top cover 2
Across production tube 9, it is installed to the top of downhole separation system, fixed, referred to as pipe string A.
(3) on ground by sealing element 22,21 screwed connection of water-filling oil pipe for being equipped with check valve 20 is pipe string B, water injecting pump
Outlet connection 19 and 21 screwed connection of water-filling oil pipe are pipe string C, while preparing more with effective oil pipe.
(4) water filling adapter 8 is closely installed on inlet of water injection pump connector 17, it is ensured that sealing cooperation between the two is good
Good, rotary joint itself is freely rotated.
Live specific installation steps are as follows:
Step A: being set by well-completing process completion desilting packer 23 (with permanent type desilting packer) and pressure testing.
Step B: handstand water injecting pump 18 hangs oil well mouth with slips, removes and hang in the lifting of oil well mouth and tripping in oil well mouth
Card is bolted inlet of water injection pump connector 17 (being mounted with water filling adapter 8)；Bypass pipe 7 (more) and water filling are suitable simultaneously
Inlet union on orchestration 8 is connected with cutting ferrule；Slips is removed, is slowly hung in lower 16 tripping in oil well of motor protecter, in table with revolvable top
When again lower slips hang；It removes the elevator hoisting motor 15 on lower motor protecter 16 and lower motor protecter 16 is bolted；
Slips is taken out, decentralization submersible motor 15 arrives table with revolvable top, then lower slips are hung；The elevator on submersible motor 15 is removed, in latent oil electricity
Oil pump is filled on machine 15 to submersible motor 15,16 note machine oil of lower motor protecter.Filling finishes, and removes filling pump, and lifting powers on
Machine protector 14 and submersible motor 15 are bolted；To upper 14 note machine oil of motor protecter (tank filler sleeve by protector side)；
Filling finishes, and taking out slips, slowly down tube seals in oil well, when upper 14 upper end of motor protecter is from oil water separator outer sleeve 1, one
It is hung when rice or so, lower slips, takes out elevator.Pay attention to that bypass pipe 7 is protected not to be damaged in the process, keeps vertical, several bypass
Pipe cannot intersect；It is calculated by design length, cuts bypass pipe 7.6 sets of water collector on upper motor protecter 14.
Step C: pipe string A is to well head for lifting, then uses bolt the end of pipe string A, i.e. elevator pump inlet union 13 and upper
Motor protecter 14 connects；Water collector 6 and oil water separator outer sleeve 1 closely connection and 5 screw connection of bottom cover are helped upwards；
The outlet of several bypass pipes 7 and water collector 6 is aligned one by one, cutting ferrule connection.
Step D: it after above-mentioned pipe series winding connects, is slowly proposed in well, is then put into the rat hole of the rig floor on side.
Step E: slinging pipe string B and go into the well, when arriving drilling floor surface, seat slips；Solution is hung, and is hung with effective oil pipe and is connected with pipe string B
It connects, is shorted by enough oil pipes under design and oil pipe, suspension；Lifting pipe string C is connected with oil pipe, in servant's well, in wellhead slip
Suspension, removes elevator.
Step F: hanging the tubing string of submersible motor 15 from rat hole, and is suspended on the pipe string of well head and is bolted, then slowly
It goes into the well, before submersible motor 15 is by well head, plugs cable connector 25, designed by well-completing process, connect production packer 24, production
Oil pipe 9, a series of well-completing process such as insertion sealing element 22 to desilting packer 23.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material, it is characterised in that: including downhole oil
Separator and submersible electric pump injection and extraction system, the downhole separation system include oil water separator outer sleeve (1), rack
(3), hydrophilic membrane module (4), bottom cover (5) and water collector (6), the submersible electric pump injection and extraction system include elevator pump (12), dive
Oily motor (15) and water injecting pump (18)；The rack (3) is mounted in oil water separator outer sleeve (1), hydrophilic membrane module (4)
It is adhered on rack (3)；Bottom cover (5) is arranged in the lower end of oil water separator outer sleeve (1)；Water collector (6) is connected to grease point
End from device outer sleeve (1)；Submersible motor (15) is separately connected elevator pump (12) and water injecting pump (18), the promotion up and down
It pumps (12) to be arranged in oil water separator outer sleeve (1), the water injecting pump (18) is arranged in the lower section of water collector (6).
2. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: the hydrophilic membrane module (4) is superhydrophilic superoleophobic separating film module, and hydrophilic membrane module (4) is closely pasted onto
On rack (3).
3. the downhole separation system and submersible electric pump injection and extraction system according to claim 2 based on super hydrophilic material,
Be characterized in that: oil water separator outer sleeve (1), rack (3), bottom cover (5) and water collector (6) form the flow channel of water.
4. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: the elevator pump (12) is connected with production tube (9), on the shell of elevator pump (12) and production tube (9)
It is provided with lipophilic material (10).
5. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: bottom cover (5) matches for annular, the inner ring of bottom cover (5) and the bottom end of rack (3), the outer ring and inner ring of bottom cover (5)
Hollow space be connected with water collector (6).
6. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: water collector (6) is hollow cylindrical, the inner prop upper end of water collector (6) and bottom cover (5) connection；Outside water collector (6)
Column upper end and the bottom of oil water separator outer sleeve (1) closely connect；The outlet at bottom and bypass pipe (7) of water collector (6) connect.
7. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: submersible motor (15) is connected by upper motor protecter (14) with elevator pump (12), under submersible motor (15) passes through
Motor protecter (16) is connected with water injecting pump (18).
8. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: elevator pump (12) includes elevator pump inlet union (13)；The lower end case and bottom cover of elevator pump inlet union (13)
(5) inner ring closely connects.
9. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: the water injecting pump (18) includes inlet of water injection pump connector (17), and water filling is housed on inlet of water injection pump connector (17)
Adapter (8) fills the water water inlet and bypass pipe (7) connection of adapter (8).
10. the downhole separation system and submersible electric pump injection and extraction system according to claim 1 based on super hydrophilic material,
Be characterized in that: the water injecting pump (18) includes water injecting pump outlet connection (19), the downhole oil based on super hydrophilic material
In the wellbore, pit shaft upper end is provided with production packer (24), production tube for separator and the installation of submersible electric pump injection and extraction system
(9) it is connected with production packer (24)；Pit shaft lower end has desilting packer (23)；Water injecting pump outlet connection (19) connection
Have water-filling oil pipe (21), water-filling oil pipe (21) is internally provided with check valve (20), and the end of water-filling oil pipe (21) passes through sealing
Part (22) is inserted into desilting packer (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617819.6A CN109306862A (en) | 2017-07-26 | 2017-07-26 | Downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617819.6A CN109306862A (en) | 2017-07-26 | 2017-07-26 | Downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109306862A true CN109306862A (en) | 2019-02-05 |
Family
ID=65202077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710617819.6A Pending CN109306862A (en) | 2017-07-26 | 2017-07-26 | Downhole separation system and submersible electric pump injection and extraction system based on super hydrophilic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109306862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984952A (en) * | 2019-10-18 | 2020-04-10 | 中国船舶重工集团公司第七一九研究所 | Underground oil-water separator |
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| WO2001061149A1 (en) * | 2000-02-18 | 2001-08-23 | Kværner Oilfield Products As | A device for and method of separating gas and liquid in a wellstream |
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| CN102121371A (en) * | 2010-12-26 | 2011-07-13 | 于华飞 | Underground solid-liquid and oil-water separating device for reciprocating producing well |
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| US4241787A (en) * | 1979-07-06 | 1980-12-30 | Price Ernest H | Downhole separator for wells |
| WO2001061149A1 (en) * | 2000-02-18 | 2001-08-23 | Kværner Oilfield Products As | A device for and method of separating gas and liquid in a wellstream |
| CN201050362Y (en) * | 2007-07-05 | 2008-04-23 | 白晓辉 | Oil, gas, water three-phase film combined probe for logger for water and oil |
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| CN110984952A (en) * | 2019-10-18 | 2020-04-10 | 中国船舶重工集团公司第七一九研究所 | Underground oil-water separator |
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