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CN201843595U - Polymer gel microsphere online injection device - Google Patents

Polymer gel microsphere online injection device Download PDF

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Publication number
CN201843595U
CN201843595U CN201020579922XU CN201020579922U CN201843595U CN 201843595 U CN201843595 U CN 201843595U CN 201020579922X U CN201020579922X U CN 201020579922XU CN 201020579922 U CN201020579922 U CN 201020579922U CN 201843595 U CN201843595 U CN 201843595U
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China
Prior art keywords
pipeline
outlet
polymer gel
gel microsphere
injection device
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Expired - Lifetime
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CN201020579922XU
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Chinese (zh)
Inventor
李之燕
李学艺
吕洪波
陈美华
黄津
周晓旭
代斌
胡静
郑波
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Petrochina Co Ltd
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Petrochina Co Ltd
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Priority to CN201020579922XU priority Critical patent/CN201843595U/en
Application granted granted Critical
Publication of CN201843595U publication Critical patent/CN201843595U/en
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Abstract

The polymer gel microsphere on-line injection device is applied to deep profile control and flooding of an oil field oil extraction water injection well and continuous injection of gel microsphere profile control and flooding agents. The outlet of the barrel pump is connected with three liquid storage tanks in parallel, and the liquid storage tanks are provided with liquid level meters; the outlets of the three liquid storage tanks are respectively connected with a metering pump through pipelines, and the outlet of each metering pump is connected with a stop check valve through a pipeline; a pressure transmitter and a safety valve are respectively connected on a pipeline between the metering pump and the stop check valve; the outlet of each stop check valve is provided with a pipeline which is respectively connected with a wellhead, and the outlet pipelines of the three stop check valves are respectively connected with a water pipeline which is connected with a pressure reducing valve bank. The effect is as follows: the injection construction is simultaneously carried out on the three wells with different design construction parameters, and the labor intensity of the profile control construction and the injection cost are greatly reduced.

Description

The online injection device of polymer gel microsphere
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly a kind of water injection well deep transfer drive improves the on-the-spot injection device continuously of the gel micro-ball class profile control agent of recovery ratio.
Background technology
Along with most of oil field, the whole nation enters high moisture, the high recovery percent of reserves development phase, deep transfer drive technology progressively is upgraded to the level that improves recovery ratio, is that the important development direction of recovery ratios is improved in the two high oil fields of China from now on.Polymer gel microsphere is a kind of novel profile control agent, and stoste is suspension emulsion, need not add other component and just can directly inject.Because component is single, it is strong to go deep into the stratum ability, therefore improves in the recovery ratio and have broad application prospects in highly aqueous field.
At present, the water injection well transfer drive injection device that generally use in the whole nation is that well head dosing, the profile control pump with individual well point is injected to the master, shortcoming is problems such as float amount control is difficult, labour intensity is big, the site operation environment is poor, expense height, only is applicable to the construction injection well of low dose, short time (less than in 10000 sides, 2-3 month).
By literature search and Field Research, the Chinese patent notification number: 2835548, provide a kind of " the continuous injection device of the online swelling of polymer " to be used for marine and the onshore oil field water injection well is adjusted stratigraphic section technology, blocking agent abundant swelling in pipeline is injected continuously.Online swelling part and auxiliary agent inject part, and online swelling part is injected part with auxiliary agent and is connected by the swelling pipeline.Do not have the polymer dissolution system, polymer is abundant swelling uniform dissolution in pipeline.Be installed on the offshore platform and realize that online swelling injects continuously.But incompatibility cross-linked polymer and emulsion type polymer gel microsphere.In addition, Chinese patent notification number: 101245699, a kind of " online injection profile control transfer drive method and device " is provided, comprise fluid reservoir, control valve, metering piston pump, injecting pipe, waterflood-transmission line, choke valve, flow meter, pressure meter and water injection well, described injecting Guan Yiduan is connected on the waterflood-transmission line, the other end is connected with metering piston pump, control valve and fluid reservoir in turn, and described waterflood-transmission line is connected to water injection well through choke valve and flow meter.Have and the controlled and synchronous function of injecting of water filling, extensively in the water injection technology of oil exploitation, use.Mainly be adapted to conventional profile control agents such as the continuous gel of polymer, precrosslink granulated gel, equipment is huger, scattered, be not incubated measure, the profile control agent fluid reservoir does not have content gauge, the depositing, be mixed and the requirement of float amount of incompatibility emulsion type polymer gel microsphere, and running cost height.
The utility model content
The purpose of this utility model is: provide a kind of polymer gel microsphere online injection device, can carry out the injection construction of three mouthfuls of wells simultaneously, reduce the labour intensity of transfer drive construction significantly and inject cost.Reliable operation, compact conformation, practical convenient, can satisfy the online injection of polymer gel microsphere performance requirement.
The technical solution adopted in the utility model is: the online injection device of polymer gel microsphere, mainly by fluid reservoir, measuring pump, pressure transmitter, safety valve, screw down nonreturn valve, take out barrel pump and the reducing valve group is formed, it is characterized in that: take out the barrel pump outlet and be parallel with three fluid reservoirs, fluid reservoir has content gauge; Three fluid reservoir outlets have pipeline to be connected with a measuring pump respectively, and each metering delivery side of pump has pipeline to connect a screw down nonreturn valve; On the pipeline between measuring pump and the screw down nonreturn valve, be connected with pressure transmitter and safety valve respectively; The outlet of each screw down nonreturn valve has pipeline to be connected with well head respectively, and the outlet line of three screw down nonreturn valves is connected with water pipeline respectively, and water pipeline is connected with a reducing valve group.
The online injection device of described polymer gel microsphere is fixed on the sledge seat.
(1) fluid reservoir: can store medicament, be furnished with mixer in the fluid reservoir and be used for the continuous stirring polymer gel microsphere, avoid liquid layering and precipitation.Adopt propeller agitator, variable frequency control makes mixing effect better.
(2) measuring pump: quantitatively polymer gel microsphere is pumped in the individual well waterflood-transmission line.
(3) pressure transmitter: detect the measuring pump outlet pressure, realize the measuring pump overpressure protection.
(4) safety valve: during measuring pump outlet superpressure, the protection measuring pump.
(5) screw down nonreturn valve: liquid flows backwards when preventing termination of pumping, must close screw down nonreturn valve immediately during termination of pumping.
(6) take out a pump: transferring polymer gel micro-ball in fluid reservoir.
(7) reducing valve group: water under high pressure is reduced to low pressure, and effect has three: the one, and the flushing fluid reservoir; The 2nd, clean-up line; The 3rd, cleaning water.
(8) content gauge: accurately discern the height that stores medicament in the fluid reservoir.Adopt flushable glass-tube liquid level meter, be easy to, liquid level is quick on the draw.
Adopt the skid-mounted modular construction, equipment, flow process and control are installed in the sledge dress room, realize on-the-spot quickly dismantled and migration.Apparatus structure is simple, rationally distributed, easy operating and maintenance.
The beneficial effects of the utility model: the online injection device of the utility model polymer gel microsphere, have compact conformation (three overlap injection device and flow processs in sledge dress room), practical convenient (simple to operate, displacement controlled and have medicament deposits between), satisfy polymer gel microsphere performance requirement (even, the anti-low temperature of medicament), and realize three mouthfuls of wells of different designs construction parameter are constructed simultaneously, reduce transfer drive construction labour intensity significantly and inject cost.This injection device has been tried out in 45-5 wellblock super large dosage (0.4PV) deep, Xi Yi district, Dagang Oilfield port one fault block west transfer drive field trial at present, can satisfy the injection requirement of polymer gel microsphere, reached the condition of industrialization promotion, planned on probation in the polymer microgel ball transfer drive of 35 mouthfuls of water injection wells of port Xi Yi district one fault block.
Description of drawings
Fig. 1 is the online injection device structural representation of the utility model polymer gel microsphere.
Among the figure, 1. fluid reservoir, 2. measuring pump, 3. pressure transmitter, 4. safety valve, 5. screw down nonreturn valve is 6. taken out barrel pump, 7. the reducing valve group.
The specific embodiment
Embodiment 1: with an online injection device of polymer gel microsphere is example, and the utility model is described in further detail.
Consult Fig. 1.The online injection device of the utility model polymer gel microsphere, mainly by fluid reservoir 1, measuring pump 2, pressure transmitter 3, safety valve 4, screw down nonreturn valve 5, take out barrel pump 6 and reducing valve group 7 is formed.
Take out barrel pump 6 outlets for one and be parallel with three fluid reservoirs 1, each fluid reservoir 1 has a content gauge and an agitator; Three fluid reservoir 1 outlets have pipeline to be connected with a measuring pump 2 respectively, and the outlet of each measuring pump 2 has pipeline to connect a screw down nonreturn valve 5; On the pipeline between measuring pump 2 and the screw down nonreturn valve 5, be connected with a pressure transmitter 3 and a safety valve 4 respectively.The outlet of each screw down nonreturn valve 5 has pipeline to be connected with well head respectively, can implement water filling.And the outlet line of three screw down nonreturn valves 5 is connected with water pipeline respectively, and water pipeline is connected with a reducing valve group 7.The online injection device overall fixed of polymer gel microsphere is on a sledge seat.
The online injection device flow process of summary polymer gel microsphere.Consult Fig. 1.Take out barrel pump 6 and in fluid reservoir 1, add polymer gel microsphere, evenly after measuring pump 2 measures superchargings, directly sneak into individual well high pressure water injection pipeline and inject target well stratum in the mixer continuous stirring.Water under high pressure reduces pressure into low pressure water commonly used through reducing valve group 7, can be used for washing fluid reservoir, pipeline and cleaning water.
The utility model relies on the China National Petroleum joint-stock company great field trial of old filed secondary development field---Gang Xi oil field secondary development one district one fault block, carry out polymer gel microsphere (SMG) transfer drive, improve the recovery ratio pilot test, scheme requires profile control agent to inject volume 347.7 ten thousand sides, injection length 3.6 years, invest 1.7 hundred million, estimate to improve recovery ratio 5.42%; Therefore need that development and operation is simple, dependable performance, inject for a long time, running cost is low, can satisfy the polymer gel microsphere performance requirement.

Claims (2)

1. online injection device of polymer gel microsphere, mainly by fluid reservoir (1), measuring pump (2), pressure transmitter (3), safety valve (4), screw down nonreturn valve (5), take out barrel pump (6) and reducing valve group (7) is formed, it is characterized in that: take out barrel pump (6) outlet and be parallel with three fluid reservoirs (1), fluid reservoir (1) has content gauge; Three fluid reservoirs (1) outlet has pipeline to be connected with a measuring pump (2) respectively, and the outlet of each measuring pump (2) has pipeline to connect a screw down nonreturn valve (5); On the pipeline between measuring pump (2) and the screw down nonreturn valve (5), be connected with pressure transmitter (3) and safety valve (4) respectively; The outlet of each screw down nonreturn valve (5) has pipeline to be connected with well head respectively, and the outlet line of three screw down nonreturn valves (5) is connected with water pipeline respectively, and water pipeline is connected with a reducing valve group (7).
2. the online injection device of polymer gel microsphere according to claim 1 is characterized in that: online injection device is fixed on the sledge seat.
CN201020579922XU 2010-10-22 2010-10-22 Polymer gel microsphere online injection device Expired - Lifetime CN201843595U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817602A (en) * 2012-08-31 2012-12-12 中国石油天然气股份有限公司 Online profile control method and device for polymer flooding oil field
CN102817601A (en) * 2012-08-31 2012-12-12 中国石油天然气股份有限公司 Method and device for polymer flooding oilfield on-line profile control by using cross-linking agent
WO2014086068A1 (en) * 2012-12-07 2014-06-12 东营盛世石油科技有限责任公司 Fracturing method of online continuous preparation based on liquid polymer
CN107075933A (en) * 2014-10-01 2017-08-18 S.P.C.M.股份公司 For controlling marine intensified oil reduction to inject the device of pressure
CN109763802A (en) * 2018-09-17 2019-05-17 中国石油天然气股份有限公司 Multi-component medicament adding device and method for chemical flooding
CN111889463A (en) * 2020-07-30 2020-11-06 苏州普滤得净化股份有限公司 Long-distance pipeline cleaning system
CN112569878A (en) * 2020-01-21 2021-03-30 苏州恒瑞宏远医疗科技有限公司 Equipment for preparing polyvinyl alcohol embolism microsphere with uniform grain diameter and production process thereof
CN113153237A (en) * 2021-04-10 2021-07-23 海洋石油工程股份有限公司 MEG gel injection device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102817602A (en) * 2012-08-31 2012-12-12 中国石油天然气股份有限公司 Online profile control method and device for polymer flooding oil field
CN102817601A (en) * 2012-08-31 2012-12-12 中国石油天然气股份有限公司 Method and device for polymer flooding oilfield on-line profile control by using cross-linking agent
CN102817602B (en) * 2012-08-31 2015-01-21 中国石油天然气股份有限公司 online profile control method and device for polymer flooding oil field
CN102817601B (en) * 2012-08-31 2015-04-08 中国石油天然气股份有限公司 Method and device for polymer flooding oilfield on-line profile control by using cross-linking agent
WO2014086068A1 (en) * 2012-12-07 2014-06-12 东营盛世石油科技有限责任公司 Fracturing method of online continuous preparation based on liquid polymer
CN107075933A (en) * 2014-10-01 2017-08-18 S.P.C.M.股份公司 For controlling marine intensified oil reduction to inject the device of pressure
CN109763802A (en) * 2018-09-17 2019-05-17 中国石油天然气股份有限公司 Multi-component medicament adding device and method for chemical flooding
CN112569878A (en) * 2020-01-21 2021-03-30 苏州恒瑞宏远医疗科技有限公司 Equipment for preparing polyvinyl alcohol embolism microsphere with uniform grain diameter and production process thereof
CN111889463A (en) * 2020-07-30 2020-11-06 苏州普滤得净化股份有限公司 Long-distance pipeline cleaning system
CN111889463B (en) * 2020-07-30 2021-11-09 苏州普滤得净化股份有限公司 Long-distance pipeline cleaning system
CN113153237A (en) * 2021-04-10 2021-07-23 海洋石油工程股份有限公司 MEG gel injection device
CN113153237B (en) * 2021-04-10 2023-04-25 海洋石油工程股份有限公司 MEG gel injection device

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Granted publication date: 20110525

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