CN105422065B - A kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out - Google Patents
A kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out Download PDFInfo
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- CN105422065B CN105422065B CN201511004225.5A CN201511004225A CN105422065B CN 105422065 B CN105422065 B CN 105422065B CN 201511004225 A CN201511004225 A CN 201511004225A CN 105422065 B CN105422065 B CN 105422065B
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- Prior art keywords
- oil
- reciprocating pump
- submersible electric
- water filling
- electric reciprocating
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to technical field of mechanical oil extraction, specifically provides a kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out, including for realizing that the underground automatic water filling that water filling and oil channel mutually switch switchs（6）And oil-submersible electric reciprocating pump；Wherein underground automatic water filling switchs（6）Upper end liquid outlet（9）With oil pipe（4）Connection, its lower end inlet（10）Pass through oil pipe with the oil-out of the upper end of oil-submersible electric reciprocating pump（4）Connection.The present invention need not be made a trip repeatedly, and more traditional huff and puff oil recovery technique is compared, and have the features such as work flow is easy, and efficiency of construction is high, and safety and environmental protection risk is low.Moreover, " the oil-submersible electric reciprocating pump that artificial lifting way uses（Linear electric motors）" device, underground transmission link is reduced, eliminates side-abrasion of rod string, improves oil well repair free period, and it is applied to low liquid measure well, economic benefit can be effectively improved.
Description
Technical field
The present invention relates to technical field of mechanical oil extraction, specifically a kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out.
Background technology
Cyclic water stimulation oil recovery technique is when strata pressure decline, when yield is very low, to producing well water filling, renwing stratum pressure
Power, then closing well certain time, replaced by the self-priming effect and the oil in matrix of capillary force, using driving a well, pressure drop makes displacement
The use method that the oil gone out together produces with part injection water, it is that the Microreservoir for developing noenergy supplement improves recovery ratio
Effective ways.So far, some oil fields are applied and achieve certain economic benefit this technique at home, and have further
The prospect of popularization and application.The cyclic water stimulation DP technology flow used at present is mostly：Lower water injection string → water filling → closing well balance
→ pull out of hole → lower machine adopts tubing string → drive a well oil recovery, referred to as a cyclic water stimulation cycle.This certainly will just be determined handles up week multiple
, it is necessary to frequently make a trip in phase, cause low construction efficiency, safety and environmental protection risk height.
If the cyclic water stimulation extracting device of oil for inventing a kind of fixed tubular column can effectively solve this drawback.Solve " motionless
The transmission link for focusing on reducing oil pumping system of tubing string ".Oil-submersible electric reciprocating pump Rodless oil extraction technology, using linear electric motors
As probe, to be inverted drop-down pump as executing agency, down-hole liquid is lifted to by reciprocating by ground.It
Oil pumper and sucker rod are eliminated, can either effectively reduce transmission link, eccentric wear can be eliminated again, efficiency is improved, reduce cost.
Meanwhile to realize water filling, the underground conversion of oil channel, it is also necessary to which design is a kind of " underground automatic water filling switch ".When using note
During Water flow-path, water filling switch is opened, oil-submersible electric reciprocating pump compressor emergency shutdown；When using oil production process, water filling switch is closed, and is dived
Oily electric reciprocating pump assembly work.With reaching its maturity for horizontal well water exploration technology, similar to the underground of " intelligent water finding switch "
Instrument, thinking is provided for the invention design of " underground automatic water filling switch ".
The content of the invention
The purpose of the present invention is to overcome above-mentioned problem in the prior art, there is provided a kind of fixed tubular column oil-submersible electric reciprocating pump gulps down
Extracting device of oil is told, the device need not make a trip, it is possible to realize water filling, the automatic switchover of oil production process so that work flow
Simplicity, efficiency of construction are high.
The technical scheme is that：A kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out, including for realize water filling and
The underground automatic water filling switch and oil-submersible electric reciprocating pump that oil channel mutually switches；Wherein brought out on underground automatic water filling switch
Liquid mouth is connected with oil pipe, and its lower end inlet is connected with the oil-out of the upper end of oil-submersible electric reciprocating pump by oil pipe.The well
Lower automatic water filling switch includes down-hole power, control circuit, motor and mechanical switch four in its seating nipple
Part；Wherein down-hole power electrically connects with motor and control circuit respectively, and control circuit electrically connects with motor；Institute
Stating mechanical switch includes passageway bridge, lower piston cylinder, upper piston cylinder, piston and pressure gauge, wherein upper piston cylinder and lower work
Plug tube is located in seating nipple, and upper piston cylinder is located at the left side of lower piston cylinder and is in lower piston cylinder on same coaxial line, two
The internal diameter of piston cylinder is equal and links together, and the barrel between upper and lower piston cylinder is provided with through hole, and the through hole is through waterflood path
It is connected with outside seating nipple；The piston is located in upper and lower piston cylinder, and the piston rod of piston passes through ball-screw and driving
The transmission axis connection of motor；The passageway bridge is located in seating nipple, its as oil channel connection seating nipple both ends into and out of
Liquid mouth, the pressure gauge being connected respectively with down-hole power and control circuit is additionally provided with the inlet of seating nipple.
Above-mentioned control circuit electrically connects with the switch board of outer wellhead.
Above-mentioned oil-submersible electric reciprocating pump includes pull-down oil well pump, linear electric motors and oil-submersible cable；Wherein pull-down is taken out
The lower end of oil pump couples with the upper end of linear electric motors, the two composition rodless pump oil extraction system；The upper end of pull-down oil well pump and well
The lower end connection of lower automatic water filling switch；The oil-submersible cable connects pull-down oil well pump and linear electric motors and leads to well respectively
Outside mouthful.
Above-mentioned oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out is located in the sleeve pipe of underground, and the control of oil-submersible cable and outer wellhead
Cabinet electrical connection processed.
The upper end of the pull-down oil well pump is threadably secured with the lower end that underground automatic water filling switchs to be connected.
Beneficial effects of the present invention：Oil extraction equipment using taking in and sending out of the present invention need not make a trip repeatedly, more traditional to handle up
DP technology is compared, and is had the following advantages that：
1. the oil extraction equipment using taking in and sending out need not make a trip repeatedly, work flow is easy, and efficiency of construction is high, safety and environmental protection risk
It is low；
2. " oil-submersible electric reciprocating pump " device used, reduces underground transmission link, side-abrasion of rod string is eliminated, improves oil
Well is excused from a college course the phase, and is applied to low liquid measure well, can effectively improve economic benefit；
3. automaticity is high, production procedure and production status can remote adjustment and monitoring, effectively reduce labor intensity.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is underground automatic water injection switching device schematic diagram；
Fig. 2 is oil-submersible electric reciprocating pump schematic diagram；
Fig. 3 is oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out tubing string figure.
Description of reference numerals：1st, well head；2nd, switch board；3rd, sleeve pipe；4th, oil pipe；5th, oil-submersible cable；6th, underground automatic water filling
Switch；7th, pull-down oil well pump；8th, linear electric motors；9th, liquid outlet；10th, inlet；11st, seating nipple；12nd, passageway bridge；13rd, under
Piston cylinder；14th, upper piston cylinder；15th, piston；16th, pressure gauge；17th, waterflood path.
Embodiment
Embodiment 1：
Referring to Fig. 2 and Fig. 3, the invention provides a kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out, including for realizing
The underground automatic water filling switch 6 and oil-submersible electric reciprocating pump that water filling mutually switches with oil channel；Wherein underground automatic water filling is opened
Close 6 upper end liquid outlets 9 to be connected with oil pipe 4, its lower end inlet 10 and the oil-out of the upper end of oil-submersible electric reciprocating pump pass through oil
Pipe 4 connects.
Underground automatic water filling switch 6 include down-hole power in its seating nipple 11, control circuit, motor and
Four functional units of mechanical switch；Wherein down-hole power electrically connects with motor and control circuit respectively, control circuit with
Motor electrically connects；The direction of rotation of control circuit major control motor, realize the conversion to " water filling-oil recovery " flow.Well
Lower power supply uses High Temperature Lithium Cell, ambient temperature range -20oC~+150oC, it is possible to achieve high current continuous discharge, high impulse
Current discharge.
As shown in figure 1, the mechanical switch include passageway bridge 12, lower piston cylinder 13, upper piston cylinder 14, piston 15 and
Pressure gauge 16, wherein upper piston cylinder 14 and lower piston cylinder 13 are located in seating nipple 11, and upper piston cylinder 14 is located at lower piston cylinder 13
Left side and be in lower piston cylinder 13 on same coaxial line, the internal diameter of two piston cylinders is equal and links together, upper and lower work
Barrel between plug tube 14,13 is provided with through hole, and the through hole is through waterflood path 17 with being connected outside seating nipple 11；The piston
15 in upper and lower piston cylinder 14,13, and the piston rod of piston 15 passes through the transmission axis connection of ball-screw and motor；
Motor is the executive component of water filling switch, is equipped with multi-stage planetary gear speed reducer, and maximum temperature is up to 125 DEG C, moment of torsion 5N
M, meet underground high temperature, the requirement of high pulling torque output.The underground automatic water filling switch 6 is connected with oil pipe, passageway bridge
12 in the seating nipple 11 of underground automatic water filling switch 6, its liquid inlet and outlet as oil channel connection seating nipple 11 both ends
10,9, the pressure gauge 16 being connected respectively with down-hole power and control circuit is additionally provided with the inlet 10 of seating nipple.When to drive
During dynamic motor power supply, drive axis is driven, and the linear motion of piston is converted to by ball-screw.During oil production process, water filling
Passage is closed（I.e. piston movement is in upper piston cylinder 14）, well liquid pass through underground automatic water filling switch 6 among passageway bridge（Adopt
Oily passage）It is lifted to well head；During water filling flow, waterflood path is opened（I.e. piston movement is in lower piston cylinder 13）, inject water and lead to
Cross waterflood path 17 and inject stratum.
The oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out that the present embodiment provides is installed in the sleeve pipe 3 of underground, its latent oil electricity
Dynamic reciprocating pump and underground automatic water filling switch is electrically connected and is controlled by it with the switch board 2 outside well head 1.Wherein underground is automatic
Water filling switch is connected with oil pipe, oil-submersible electric reciprocating pump by not thickening plain tubing round thread, and battery should be installed before going into the well, and
The good corresponding control circuit of debugging, it is ensured that automatic water filling switch in underground can open and close；During oil production process, underground automatic water filling
The waterflood path of switch is closed, and the reciprocal pump assembly of oil-submersible electric is opened, the oil channel that well liquid is switched by underground automatic water filling
It is lifted to well head；During water filling flow, waterflood path is opened, and the reciprocal pump assembly of oil-submersible electric is closed, and injection water passes through waterflood path
Inject stratum.
Embodiment 2：
On the basis of embodiment 1, the oil-submersible electric reciprocating pump includes pull-down oil well pump 7, linear electric motors 8 and dived
Oily cable 5；Wherein the lower end of pull-down oil well pump 7 couples with the upper end of linear electric motors 8, the two composition rodless pump oil extraction system；
The upper end of pull-down oil well pump 7 couples with the lower end of underground automatic water filling switch 6；The oil-submersible cable 5 connects pull-down respectively
Oil well pump 7 and linear electric motors 8 simultaneously lead to outer wellhead.
The pull-down oil well pump that the oil-submersible electric reciprocating pump uses is ensured using the mode of operation for pulling downward on plunger discharge opeing
Extended state is in during electric mover stress, effectively avoids mover eccentric wear.Oil well pump inlet is located at linear electric motors upper end, straight line
Motor is immersed in well liquid all the time, plays the cooling effect to motor.The linear electric motors of use may be considered electric rotating machine and exist
A kind of differentiation of configuration aspects, it can be regarded as radially splitting an electric rotating machine, then transforms into the circumference of motor
Straight line.The rotor of electric rotating machine develops into the secondary of linear electric motors, and stator develops into primary.The linear motor of apolegamy is using length
Primary, short secondary structure, stator winding groove, rotor permanent magnet hermetic design.The Unit head can reach 1800m, stroke 0-
1.5m, jig frequency 0~9 time/min, liquid measure 1-10m3/d, 180 DEG C of heatproof (H levels).
The operation principle of the present invention：Oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out provided by the invention is installed on the set of underground
In pipe 3, the control circuit of its oil-submersible cable 5 and underground automatic water filling switch 6 electrically connects simultaneously with the switch board 2 outside well head 1
It is controlled by it.Wherein underground automatic water filling switch is connected with oil pipe, pull-down oil well pump by not thickening plain tubing round thread,
Battery should be installed before going into the well, and debugged control circuit, it is ensured that switch can open and close；Pull-down oil well pump and straight-line electric
Machine forms rodless pump oil extraction system by thread connection.During oil production process, waterflood path is closed, the reciprocal pump assembly of oil-submersible electric
Open, well liquid passes through the passageway bridge among water injection switching device（Oil channel）It is lifted to well head；During water filling flow, water filling is led to
Road is opened, and the reciprocal pump assembly of oil-submersible electric is closed, and injection water injects stratum by waterflood path.
Oil extraction equipment using taking in and sending out of the present invention need not be made a trip repeatedly, and more traditional huff and puff oil recovery technique is compared, and is had
The features such as work flow is easy, and efficiency of construction is high, and safety and environmental protection risk is low.Moreover, artificial lifting way use " oil-submersible electric is reciprocal
Pump（Linear electric motors）" device, underground transmission link is reduced, eliminates side-abrasion of rod string, improves oil well repair free period, and suitable for low
Liquid measure well, economic benefit can be effectively improved.
There is no the known conventional means of the part category industry described in detail in present embodiment, do not chat one by one here
State.It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is every with this
Same or analogous design is invented to belong within protection scope of the present invention.
Claims (5)
- A kind of 1. oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out, it is characterised in that：Including for realizing water filling and oil channel phase The underground automatic water filling switch of switching（6）And oil-submersible electric reciprocating pump；Wherein underground automatic water filling switchs（6）Upper end liquid outlet （9）With oil pipe（4）Connection, its lower end inlet（10）Pass through oil pipe with the oil-out of the upper end of oil-submersible electric reciprocating pump（4）Even Connect；The underground automatic water filling switch（6）Including positioned at its seating nipple（11）Interior down-hole power, control circuit, motor And four parts of mechanical switch；Wherein down-hole power electrically connects with motor and control circuit respectively, control circuit with Motor electrically connects；The mechanical switch includes passageway bridge（12）, lower piston cylinder（13）, upper piston cylinder（14）, piston （15）And pressure gauge（16）, wherein upper piston cylinder（14）And lower piston cylinder（13）Positioned at seating nipple（11）It is interior, upper piston cylinder （14）Positioned at lower piston cylinder（13）Left side and with lower piston cylinder（13）On same coaxial line, the internal diameter phase of two piston cylinders Deng and link together, upper and lower piston cylinder（14,13）Between barrel be provided with through hole, the through hole is through waterflood path（17）With Seating nipple（11）Outside is connected；The piston（15）Positioned at upper and lower piston cylinder（14,13）It is interior, and piston（15）Piston rod Pass through the transmission axis connection of ball-screw and motor；The passageway bridge（12）Positioned at seating nipple（11）Interior, it is used as and adopted Oily passage connects seating nipple（11）The liquid inlet and outlet at both ends（10,9）, the inlet of seating nipple（10）Inside be additionally provided with respectively with well Lower power supply and the pressure gauge of control circuit connection（16）.
- A kind of 2. oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out as claimed in claim 1, it is characterised in that：The control circuit With well head（1）Outer switch board（2）Electrical connection.
- A kind of 3. oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out as claimed in claim 1, it is characterised in that：The oil-submersible electric Reciprocating pump includes pull-down oil well pump（7）, linear electric motors（8）And oil-submersible cable（5）；Wherein pull-down oil well pump（7）Under End and linear electric motors（8）Upper end connection, the two composition rodless pump oil extraction system；Pull-down oil well pump（7）Upper end and underground Automatic water filling switchs（6）Lower end connection；The oil-submersible cable（5）Pull-down oil well pump is connected respectively（7）And linear electric motors （8）And lead to outer wellhead.
- A kind of 4. oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out as claimed in claim 2, it is characterised in that：The oil-submersible electric is past Multiple pump oil extraction equipment using taking in and sending out is located at the sleeve pipe of underground（3）It is interior, and oil-submersible cable（5）With well head（1）Outer switch board（2）It is electrically connected Connect.
- A kind of 5. oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out as claimed in claim 3, it is characterised in that：The pull-down is taken out Oil pump（7）Upper end switched with underground automatic water filling（6）Lower end be threadably secured connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004225.5A CN105422065B (en) | 2015-12-29 | 2015-12-29 | A kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004225.5A CN105422065B (en) | 2015-12-29 | 2015-12-29 | A kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out |
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| Publication Number | Publication Date |
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| CN105422065A CN105422065A (en) | 2016-03-23 |
| CN105422065B true CN105422065B (en) | 2018-02-02 |
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| CN201511004225.5A Active CN105422065B (en) | 2015-12-29 | 2015-12-29 | A kind of oil-submersible electric reciprocating pump oil extraction equipment using taking in and sending out |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2681045C1 (en) | 2018-05-21 | 2019-03-01 | Акционерное общество "Новомет-Пермь" | Installation of submersible pump with sealed motor |
| CN112814635B (en) * | 2021-03-27 | 2022-08-12 | 辽宁金兴石油集团有限公司 | Pulse type pressurization water injection string |
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| CN102767355A (en) * | 2012-08-03 | 2012-11-07 | 王维纲 | Thick oil steam-huff-and-puff injection-production integrated oil production device |
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| CN205370529U (en) * | 2015-12-29 | 2016-07-06 | 中国石油天然气股份有限公司 | Oily electric reciprocating pump of diving oil production device that takes in and send out |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8079417B2 (en) * | 2008-08-13 | 2011-12-20 | Conocophillips Company | Wireline retrievable dsg/downhole pump system for cyclic steam and continuous steam flooding operations in petroleum reservoirs |
| US9689529B2 (en) * | 2014-05-08 | 2017-06-27 | Baker Hughes Incorporated | Oil injection unit |
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| CN201636024U (en) * | 2010-01-19 | 2010-11-17 | 中国海洋石油总公司 | Low-rotary-speed and large-displacement electric submersible screw pump oil-production system |
| CN102767355A (en) * | 2012-08-03 | 2012-11-07 | 王维纲 | Thick oil steam-huff-and-puff injection-production integrated oil production device |
| CN202866752U (en) * | 2012-09-06 | 2013-04-10 | 中国石油化工股份有限公司 | Push type underground water finding and plugging switch |
| CN103452496A (en) * | 2013-09-13 | 2013-12-18 | 中国海洋石油总公司 | Injection-production integrated automatic switching production joint for thick oil thermal production well |
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| CN105422065A (en) | 2016-03-23 |
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