WO2017177476A1 - Evaluation system for determining technological parameters for dissolving of oil-displacing polymer in pipe - Google Patents

Evaluation system for determining technological parameters for dissolving of oil-displacing polymer in pipe Download PDF

Info

Publication number
WO2017177476A1
WO2017177476A1 PCT/CN2016/079951 CN2016079951W WO2017177476A1 WO 2017177476 A1 WO2017177476 A1 WO 2017177476A1 CN 2016079951 W CN2016079951 W CN 2016079951W WO 2017177476 A1 WO2017177476 A1 WO 2017177476A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
evaluation system
polymer
pipeline
flow rate
Prior art date
Application number
PCT/CN2016/079951
Other languages
French (fr)
Chinese (zh)
Inventor
刘松荫
刘正正
刘方
刘彦彬
王中奇
Original Assignee
河南正佳能源环保股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 河南正佳能源环保股份有限公司 filed Critical 河南正佳能源环保股份有限公司
Publication of WO2017177476A1 publication Critical patent/WO2017177476A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity

Definitions

  • the invention belongs to the technical field of oil field injection, and particularly relates to an evaluation system for dissolution in an oil displacement polymer pipeline.
  • Oil recovery technology includes primary oil recovery technology, secondary oil recovery technology and tertiary oil recovery technology.
  • tertiary oil recovery technology refers to expanding the injection range by injecting new oil displacement agent, changing the physical and chemical properties such as viscosity, combination and phase state of the fluid. The volume, the technique of re-aggregating the dispersed residual oil and collecting it, thereby greatly improving the oil recovery rate.
  • Polymer flooding is a kind of tertiary oil recovery technology. Polymer flooding refers to adding water-soluble polymer to injected water to increase the viscosity of injected water, improve the water-oil ratio, improve the sweep efficiency and micro-displacement efficiency. Thereby increasing the oil recovery method.
  • the polymer flooding is firstly configured with a solution of the polymer dry powder.
  • the configuration steps include: (1) the addition of the polymer dry powder; (2) the dispersion and wetting of the polymer dry powder, that is, dispersing the polymer dry powder in water to form a polymer mother liquor; (3) Maturation of the polymer mother liquor, the ripening is the process of fully dissolving the polymer dry powder in water to obtain the mother liquor whose physical and chemical indexes meet the requirements; (4) Transfer filtration and storage of the polymer mother liquor. After the polymer mother liquor is disposed, the polymer mother liquor is diluted to a target liquid, and the target liquid enters the injection well through a single well line.
  • the above curing process can ensure the dissolution of the polymer dry powder in water meets the requirements, but a new type of polymer has been obtained, and the process of arranging the solution of the polymer eliminates the step of curing, but the configuration after the curing step is omitted. Whether the polymer solution satisfies the requirements, such as the dissolution effect, physical and chemical indicators, etc., is required to be tested to evaluate the dissolution effect, physical and chemical indicators, and the like of the polymer.
  • the present invention provides an evaluation system for dissolution in an oil displacement polymer pipeline, including a first valve, a static mixer, a flow rate controller, a buffer tank, a screw pump, and a second valve; an inlet of the first valve is connected to a pipeline for conveying a target liquid to be evaluated, and an outlet of the first valve is respectively connected to the second valve and the static mixer; the static mixer, The flow rate controller, the buffer tank, the screw pump and the second valve are sequentially connected to form a circulation line, the circulation line is provided with a branch line, and the branch line is provided with a liquid discharge valve.
  • the outlet of the drain valve is connected with a waste liquid tank, and the circulation line is further provided with an exhaust valve, a circulation valve and a plurality of sampling ports, and the circulation valve is located at the inlet of the branch line and the buffer tank between.
  • the automatic control unit further includes a PLC controller and a host computer, wherein the PLC controller is connected to the upper computer; the first valve and the second valve are both electric valves, The flow rate controller is an electromagnetic flow meter, and the first valve, the second valve, and the flow rate controller are all connected to the PLC controller.
  • the circulation pipeline is provided with a plurality of pressure transmitters, and the pressure transmitter is connected to the PLC controller.
  • the buffer tank is provided with a temperature transmitter, and the temperature transmitter is connected to the PLC controller.
  • the buffer tank is provided with a liquid level transmitter, and the liquid level transmitter is connected with the PLC controller.
  • the circulation pipeline is further provided with a sight glass.
  • sampling port is a three-position sampling port.
  • the buffer tank, the waste liquid tank and the pipeline of the evaluation system dissolved in the oil displacement polymer pipeline are all made of 316L stainless steel.
  • the flow rate controller of the evaluation system of the present invention can control the flow rate of the target liquid to simulate the oil field injection flow rate, and can simulate different oil field conditions by controlling the flow rate of the target liquid to different values; the target liquid is in the circulation line of the present invention. Circulating flow, which can be calculated according to the flow rate and flow time of the target liquid. The flow distance of the target liquid is used to simulate the flow distance of the target liquid in the oil field injection process.
  • the evaluation system of the present invention realizes the polymer by simulating the actual oil field injection flow rate and the flow distance of the target liquid in the oil field injection process. The dissolution effect, physical and chemical indicators, etc. are evaluated, that is, the oil field on-site environmental parameters can be simulated for polymer evaluation.
  • the evaluation system of the present invention can be used for evaluation to verify whether the dissolution effect, physical and chemical indicators, and the like of the polymer meet the requirements. If the requirements are not met, the experimental data provided by the evaluation system according to the present invention can be Further improvement of the formulation and production process of the polymer.
  • the evaluation system of the present invention can also simulate different oilfield conditions and provide reliable technical support for selecting suitable polymers for different oil fields.
  • the evaluation system of the present invention can be applied to the site, and the target liquid at the injection site can be evaluated by being connected to the evaluation system of the present invention.
  • the evaluation system of the invention realizes automatic control through the PLC controller, and the one-button operation reduces the labor expenditure, so that the evaluation system of the invention runs more stably and safely, and the stability of the experimental data is guaranteed.
  • the flow rate controller and the screw pump of the invention are automatically controlled by the PLC controller to make the flow of the target liquid more uniform in the pipeline, which greatly improves the reliability of the experimental data of the evaluation system of the present invention.
  • FIG. 1 is a schematic structural view of an evaluation system for dissolution in an oil displacement polymer pipe according to the present invention
  • FIG. 2 is a schematic view showing the structure of an automatic control unit of an evaluation system for dissolution in an oil displacement polymer pipe of the present invention.
  • the evaluation system for dissolution in the oil displacement polymer pipe of the present invention includes a first valve 10, a static mixer 12, a flow rate controller 13, a buffer tank 21, a screw pump 24, and a second valve 11.
  • the inlet of the first valve 10 is connected to a pipeline for conveying the target liquid to be evaluated, the outlet of the first valve 10 is connected to the second valve 11 and the static mixer 12, respectively, and the static mixer 12 is a static mixer, which is a kind Efficient mixing equipment without moving parts.
  • the static mixer 12, the flow rate controller 13, the buffer tank 21, the screw pump 24 and the second valve 11 are sequentially connected to form a circulation line, and the circulation line is provided with a branch line, and the branch line is provided with a drain valve 18, the outlet of the drain valve 18 is connected with a waste liquid tank 20, and the circulation pipeline is further provided with a sight glass 16, an exhaust valve 19, a circulation valve 17 and a plurality of sampling ports 15, and the circulation valve 17 is located in the branch line and the buffer tank Between the entrances of 21.
  • the target liquid to be evaluated is circulated in the circulation line, and the flow rate controller 13 is used to control the flow rate of the target liquid, and the flow and dissolution of the target liquid in the circulation line can be observed through the sight glass 16.
  • the evaluation system for dissolving in the oil displacement polymer pipeline of the present invention further includes an automatic control unit including a PLC (Programmable Logic Controller) controller 26 and a host computer 25, PLC.
  • the controller 26 is connected to the upper computer 25.
  • the first valve 10 and the second valve 11 are both electric valves
  • the flow rate controller 13 is an electromagnetic flow meter
  • the first valve 10, the second valve 11 and the flow rate controller 13 are both connected to the PLC controller 26, so that
  • the PLC controller 26 can control the first valve 10, the second valve 11 and the flow rate controller 13, and control the opening and closing states of the first valve 10 and the second valve 11 to control the on and off of the corresponding pipeline.
  • the controller 13 is capable of detecting the flow rate of the target liquid in the pipeline, and on the other hand, controlling the flow rate of the target liquid in the pipeline.
  • the circulation pipeline of the present invention is provided with a plurality of pressure transmitters 14, which are connected to the PLC controller 26, and the pressure transmitter 14 is used for detecting the circulation tube.
  • the pressure in the road sends the detected pressure information to the PLC controller 26, and the PLC controller 26 transmits the received pressure information to the upper computer 25.
  • the buffer tank 21 is provided with a temperature transmitter 22 and a liquid level transmitter 23, and the temperature transmitter 22 and the liquid level transmitter 23 are both connected to the PLC controller 26, and the temperature transmitter 22 is used for detecting the buffer tank 21
  • the temperature of the target liquid is sent to the PLC controller 26, and the liquid level transmitter 23 is configured to detect the liquid level of the target liquid in the buffer tank 21 and send the detected liquid level information to the PLC controller. 26.
  • the screw pump 24 is connected to the PLC controller 26 via a frequency converter 27 so that the PLC controller 26 can control the screw pump 24.
  • the working process of the evaluation system for dissolving in the oil displacement polymer pipe of the present invention is described below.
  • the liquid discharge valve 18 and the second valve 11 are closed, and the circulation valve 17, the exhaust valve 19 and the first are opened.
  • a valve 10 the target liquid enters the evaluation system of the present invention, and the exhaust valve 19 functions to exclude the gas in the circulation line of the present invention so that the circulation line of the present invention is filled with the target liquid.
  • the target liquid flowing into the evaluation system of the present invention first passes through the static mixer 12, and the static mixer 12 can further mix the polymer dry powder and water to make the polymer dry powder and water mix more uniformly, so that the target liquid is in the pipeline.
  • Forming a steady flow facilitates subsequent sampling of the target liquid, and improves the accuracy of the evaluation system of the present invention
  • the flow rate controller 13 controls the flow rate of the target liquid in the pipeline, and on the one hand, the flow rate of the target liquid can be controlled as an oil field injection.
  • the flow rate can be simulated so that the actual oilfield injection environment can be simulated.
  • the flow rate of the target liquid is different when different oil fields are injected.
  • the conditions of different oil fields can be simulated.
  • the target liquid flows into the buffer tank 21 through the flow rate controller 13, the mirror 16 and the circulation valve 17, and the operator can observe the flow and dissolution of the target liquid in the circulation line through the sight glass 16.
  • the liquid level of the target liquid in the buffer tank 21 is detected by the liquid level transmitter 23, and after the target liquid reaches the set liquid level, the exhaust valve 19 and the first valve 10 are closed, and the second valve 11 and the screw are opened.
  • the pump 24, the process of this step can be realized by the automatic control of the PLC controller 26; the power is supplied by the screw pump 24, and the target liquid starts at the static mixer 12, the flow rate controller 13, the buffer tank 21, the screw pump 24, and the second valve. 11 circulating circulation lines are formed.
  • the screw pump 24 is activated after the target liquid reaches the set liquid level, so that the screw pump 24 can be prevented from being evacuated, thereby protecting the screw pump 24.
  • the target liquid can be sampled by opening the sampling port 15 on the circulation line.
  • the number of sampling ports 15 and the set position can be determined according to actual needs, for example, when the target liquid is injected into the well of 1000 m during the actual injection process. Then, it is necessary to know whether the dissolution effect, physical and chemical indicators, etc. of the target liquid after flowing 1000m meet the requirements, and the flow rate of the target liquid in the circulation line of the present invention (by the second step set above, the flow rate of the target liquid is simulated actual oilfield injection. The flow rate is known, and the time at which the target liquid enters the evaluation system of the present invention is also known.
  • the flow time required for the target liquid can be calculated, so that The sampling port 15 is provided at a specific position in the circulation line of the present invention so that after the required flow time, the target liquid flows to the sampling port 15, and the distance of the target liquid flows is 1000 m.
  • the evaluation system of the present invention when used, after the target liquid flows into the evaluation system of the present invention, after the required flow time, the operator samples at the sampling port 15, and a sample of the target liquid flowing 1000 m can be obtained, and then the operator will take out the sample.
  • the target liquid sample is sent to the inspection center to check whether the dissolution effect, physical and chemical indicators, etc. of the polymer dry powder are qualified.
  • the sampling port 15 at a position where the target liquid flows 800 m or 500 m, so that more dissolution effects on the polymer dry powder can be obtained, and physical and chemical means
  • the target data in order to understand the dissolution process of the polymer dry powder, especially when the dissolution effect, physical and chemical indicators of the target liquid sample are unqualified, the sample data of 800m or 500m can be used to improve the formulation or production process of the polymer dry powder.
  • the pressure transmitter 14 and the temperature transmitter 22 can detect the pressure and temperature in the circulation pipeline in real time, and provide more data support for the evaluation of the dissolution effect and physical and chemical indexes of the polymer.
  • the circulation valve 17 is closed, the drain valve 18 is opened, and the target liquid flows into the waste liquid tank 20.
  • the sampling port 15 is a three-position sampling port for sampling the target liquid at different pipe positions in the pipeline, for example, sampling at the center of the pipeline, sampling at one-half of the radius of the pipeline, because the pipeline
  • the flow rate of the target liquid at different tube positions is likely to be different, and the dissolution of the polymer is also affected.
  • the sampling of the target liquid at different tube positions can provide a more comprehensive understanding of the dissolution of the polymer dry powder.
  • the tubes of the buffer tank 21, the waste liquid tank 20 and the evaluation system for dissolving in the oil-dispelling polymer pipe are made of 316L stainless steel, and the 316L stainless steel is extremely resistant to corrosion and can prolong the service life of the equipment.
  • the evaluation system of the present invention can be used not only for the dissolution effect of the polymer, the evaluation of physical and chemical properties, but also for the surfactant, the acidifier, the bactericide, the anti-swelling agent, etc., which are dissolved or dispersed directly into the reservoir through the pipeline. Tests and experiments were conducted to evaluate them.

Abstract

The present invention relates to the technical field of polymer injection in oil fields. In order to evaluate the dissolving effect and the physical and chemical indexes of polymer powder, the present invention provides a system for evaluating the dissolving of an oil-displacing polymer in a pipe, comprising a first valve, a static mixer, a flow rate controller, a buffer tank, a screw pump, and a second valve. The input of the first valve is connected with a pipeline for transporting a target fluid to be evaluated, and the output of the first valve is connected to the second valve and the static mixer, respectively. The static mixer, the flow rate controller, the buffer tank, the screw pump, and the second valve are sequentially connected to form a circulating pipeline. The circulating pipeline is provided with a branch pipeline; the branch pipeline is provided with a fluid discharge valve; the output of the fluid discharge valve is connected with a waste fluid tank; a circulating valve and several sampling ports are provided on the circulating pipeline. The present invention provides a system for evaluating the dissolving effect, and the physical and chemical indexes of a polymer, capable of evaluating a polymer by simulating on-site environmental parameters, thereby providing reliable technical support for selecting suitable polymers for different oil fields.

Description

一种驱油聚合物管道内溶解工艺参数确定的评价***Evaluation system for determining process parameters of dissolving oil in polymer pipeline 技术领域Technical field
本发明属于油田注聚的技术领域，具体涉及一种驱油聚合物管道内溶解的评价***。The invention belongs to the technical field of oil field injection, and particularly relates to an evaluation system for dissolution in an oil displacement polymer pipeline.
背景技术Background technique
采油技术包括一次采油技术、二次采油技术和三次采油技术，其中，三次采油技术是指通过注入新的驱油剂，改变流体的粘度、组合和相态等物理化学性质，来扩大注入范围和体积，使分散的残余油重新聚集而被采集出来，从而大幅度提高原油采收率的技术。聚合物驱油是三次采油技术的一种，聚合物驱油是指将水溶性高分子添加到注入水中以提高注入水的粘度，改善水油流度比，提高波及效率及微观驱油效率，从而提高原油采收率的方法。使用聚合物驱油，首先要配置聚合物干粉的溶液，配置步骤包括：(1)聚合物干粉的添加；(2)聚合物干粉的分散湿润，即将聚合物干粉分散于水中形成聚合物母液；(3)聚合物母液的熟化，熟化是聚合物干粉在水中充分溶解，以获得理化指标符合要求的母液的过程；(4)聚合物母液的转输过滤和存储。聚合物母液配置完成后，再将聚合物母液稀释为目的液，该目的液经单井管线进入注聚井。Oil recovery technology includes primary oil recovery technology, secondary oil recovery technology and tertiary oil recovery technology. Among them, tertiary oil recovery technology refers to expanding the injection range by injecting new oil displacement agent, changing the physical and chemical properties such as viscosity, combination and phase state of the fluid. The volume, the technique of re-aggregating the dispersed residual oil and collecting it, thereby greatly improving the oil recovery rate. Polymer flooding is a kind of tertiary oil recovery technology. Polymer flooding refers to adding water-soluble polymer to injected water to increase the viscosity of injected water, improve the water-oil ratio, improve the sweep efficiency and micro-displacement efficiency. Thereby increasing the oil recovery method. The polymer flooding is firstly configured with a solution of the polymer dry powder. The configuration steps include: (1) the addition of the polymer dry powder; (2) the dispersion and wetting of the polymer dry powder, that is, dispersing the polymer dry powder in water to form a polymer mother liquor; (3) Maturation of the polymer mother liquor, the ripening is the process of fully dissolving the polymer dry powder in water to obtain the mother liquor whose physical and chemical indexes meet the requirements; (4) Transfer filtration and storage of the polymer mother liquor. After the polymer mother liquor is disposed, the polymer mother liquor is diluted to a target liquid, and the target liquid enters the injection well through a single well line.
上述熟化过程能够保证聚合物干粉在水中的溶解符合要求，不过目前已经有了一种新型的聚合物，配置该聚合物的溶液的过程省去了熟化的步骤，但省去熟化步骤之后配置的聚合物溶液是否满足要求，例如溶解效果、理化指标等是否合格，就需要去检验以对聚合物的溶解效果、理化指标等进行评价。 The above curing process can ensure the dissolution of the polymer dry powder in water meets the requirements, but a new type of polymer has been obtained, and the process of arranging the solution of the polymer eliminates the step of curing, but the configuration after the curing step is omitted. Whether the polymer solution satisfies the requirements, such as the dissolution effect, physical and chemical indicators, etc., is required to be tested to evaluate the dissolution effect, physical and chemical indicators, and the like of the polymer.
发明内容Summary of the invention
为了对聚合物干粉的溶解效果、理化指标等进行评价，本发明提出一种驱油聚合物管道内溶解的评价***，包括第一阀门、静混器、流速控制器、缓冲罐、螺杆泵和第二阀门；所述第一阀门的入口与输送待评价的目的液的管路连接，该第一阀门的出口分别与所述第二阀门、所述静混器连接；所述静混器、所述流速控制器、所述缓冲罐、所述螺杆泵和所述第二阀门依次连接组成循环管路，该循环管路设有分支管路，所述分支管路上设有排液阀门，所述排液阀门的出口连接有废液罐，所述循环管路上还设有排气阀、循环阀门和若干个取样口，所述循环阀门位于所述分支管路和所述缓冲罐的入口之间。In order to evaluate the dissolution effect, physical and chemical indicators, and the like of the polymer dry powder, the present invention provides an evaluation system for dissolution in an oil displacement polymer pipeline, including a first valve, a static mixer, a flow rate controller, a buffer tank, a screw pump, and a second valve; an inlet of the first valve is connected to a pipeline for conveying a target liquid to be evaluated, and an outlet of the first valve is respectively connected to the second valve and the static mixer; the static mixer, The flow rate controller, the buffer tank, the screw pump and the second valve are sequentially connected to form a circulation line, the circulation line is provided with a branch line, and the branch line is provided with a liquid discharge valve. The outlet of the drain valve is connected with a waste liquid tank, and the circulation line is further provided with an exhaust valve, a circulation valve and a plurality of sampling ports, and the circulation valve is located at the inlet of the branch line and the buffer tank between.
其中，还包括自动控制单元，该自动控制单元包括PLC控制器和上位机，所述PLC控制器和所述上位机连接；所述第一阀门和所述第二阀门均为电动阀，所述流速控制器为电磁流量计，所述第一阀门、所述第二阀门和所述流速控制器均与所述PLC控制器连接。The automatic control unit further includes a PLC controller and a host computer, wherein the PLC controller is connected to the upper computer; the first valve and the second valve are both electric valves, The flow rate controller is an electromagnetic flow meter, and the first valve, the second valve, and the flow rate controller are all connected to the PLC controller.
其中，所述循环管路上设有若干个压力变送器，该压力变送器与所述PLC控制器连接。Wherein, the circulation pipeline is provided with a plurality of pressure transmitters, and the pressure transmitter is connected to the PLC controller.
其中，所述缓冲罐中设有温度变送器，该温度变送器与所述PLC控制器连接。Wherein, the buffer tank is provided with a temperature transmitter, and the temperature transmitter is connected to the PLC controller.
其中，所述缓冲罐中设有液位变送器，该液位变送器与所述PLC控制器连接。Wherein, the buffer tank is provided with a liquid level transmitter, and the liquid level transmitter is connected with the PLC controller.
其中，所述循环管路上还设有视镜。Wherein, the circulation pipeline is further provided with a sight glass.
其中，所述取样口为三位取样口。Wherein, the sampling port is a three-position sampling port.
其中，所述缓冲罐、所述废液罐和所述驱油聚合物管道内溶解的评价***的管路均采用316L不锈钢制作。Wherein, the buffer tank, the waste liquid tank and the pipeline of the evaluation system dissolved in the oil displacement polymer pipeline are all made of 316L stainless steel.
本发明驱油聚合物管道内溶解的评价***具有如下的有益效果：The evaluation system for dissolution in the oil displacement polymer pipe of the present invention has the following beneficial effects:
本发明的评价***的流速控制器能够控制目的液的流速，以模拟油田注聚流速，而且通过将目的液的流速控制为不同值，可以模拟不同油田条件；目的液在本发明的循环管路中循环流动，根据目的液的流速及流动时间能够计算出 目的液的流动距离，以模拟油田注聚过程中目的液的流动距离，本发明的评价***通过模拟实际的油田注聚流速和油田注聚过程中目的液的流动距离，来实现对聚合物的溶解效果、理化指标等进行评价，也就是能够模拟油田现场环境参数进行聚合物评价。对于新研发的聚合物，可以利用本发明的评价***进行评价，以检验该聚合物的溶解效果、理化指标等是否满足要求，如果不满足要求，根据本发明的评价***提供的实验数据，可以对聚合物的配方及生产工艺做进一步改进。本发明的评价***还可以模拟不同油田条件，为不同油田选用适合聚合物提供了可靠的技术支持。本发明的评价***能够应用于现场，将注聚现场的目的液接入本发明的评价***就可进行评价。The flow rate controller of the evaluation system of the present invention can control the flow rate of the target liquid to simulate the oil field injection flow rate, and can simulate different oil field conditions by controlling the flow rate of the target liquid to different values; the target liquid is in the circulation line of the present invention. Circulating flow, which can be calculated according to the flow rate and flow time of the target liquid The flow distance of the target liquid is used to simulate the flow distance of the target liquid in the oil field injection process. The evaluation system of the present invention realizes the polymer by simulating the actual oil field injection flow rate and the flow distance of the target liquid in the oil field injection process. The dissolution effect, physical and chemical indicators, etc. are evaluated, that is, the oil field on-site environmental parameters can be simulated for polymer evaluation. For the newly developed polymer, the evaluation system of the present invention can be used for evaluation to verify whether the dissolution effect, physical and chemical indicators, and the like of the polymer meet the requirements. If the requirements are not met, the experimental data provided by the evaluation system according to the present invention can be Further improvement of the formulation and production process of the polymer. The evaluation system of the present invention can also simulate different oilfield conditions and provide reliable technical support for selecting suitable polymers for different oil fields. The evaluation system of the present invention can be applied to the site, and the target liquid at the injection site can be evaluated by being connected to the evaluation system of the present invention.
本发明的评价***通过PLC控制器实现自动化控制，一键操作，减少了人力的支出，使本发明的评价***运行更稳定更安全，实验数据的稳定性得到了保障。本发明的流速控制器和和螺杆泵均通过PLC控制器自动控制，使目的液在管路中流动更均匀，大大提升了本发明的评价***实验数据的可靠性。The evaluation system of the invention realizes automatic control through the PLC controller, and the one-button operation reduces the labor expenditure, so that the evaluation system of the invention runs more stably and safely, and the stability of the experimental data is guaranteed. The flow rate controller and the screw pump of the invention are automatically controlled by the PLC controller to make the flow of the target liquid more uniform in the pipeline, which greatly improves the reliability of the experimental data of the evaluation system of the present invention.
附图说明DRAWINGS
图1为本发明驱油聚合物管道内溶解的评价***的结构示意图；1 is a schematic structural view of an evaluation system for dissolution in an oil displacement polymer pipe according to the present invention;
图2为本发明驱油聚合物管道内溶解的评价***的自动控制单元的结构示意图。2 is a schematic view showing the structure of an automatic control unit of an evaluation system for dissolution in an oil displacement polymer pipe of the present invention.
具体实施方式detailed description
下面结合附图介绍本发明的技术方案。The technical solution of the present invention will be described below with reference to the accompanying drawings.
如图1所示，本发明驱油聚合物管道内溶解的评价***包括第一阀门10、静混器12、流速控制器13、缓冲罐21、螺杆泵24和第二阀门11。第一阀门10的入口与输送待评价的目的液的管路连接，该第一阀门10的出口分别与第二阀门11、静混器12连接，静混器12指静态混合器，是一种没有运动部件的高效混合设备。静混器12、流速控制器13、缓冲罐21、螺杆泵24和第二阀门11依次连接组成循环管路，该循环管路设有分支管路，该分支管路上设有排液阀门 18，排液阀门18的出口连接有废液罐20，循环管路上还设有视镜16、排气阀19、循环阀门17和若干个取样口15，循环阀门17位于分支管路和缓冲罐21的入口之间。使用时，待评价的目的液在循环管路中循环流动，流速控制器13用于控制目的液的流速，通过视镜16可以观察目的液在循环管路中的流动及溶解情况。As shown in FIG. 1, the evaluation system for dissolution in the oil displacement polymer pipe of the present invention includes a first valve 10, a static mixer 12, a flow rate controller 13, a buffer tank 21, a screw pump 24, and a second valve 11. The inlet of the first valve 10 is connected to a pipeline for conveying the target liquid to be evaluated, the outlet of the first valve 10 is connected to the second valve 11 and the static mixer 12, respectively, and the static mixer 12 is a static mixer, which is a kind Efficient mixing equipment without moving parts. The static mixer 12, the flow rate controller 13, the buffer tank 21, the screw pump 24 and the second valve 11 are sequentially connected to form a circulation line, and the circulation line is provided with a branch line, and the branch line is provided with a drain valve 18, the outlet of the drain valve 18 is connected with a waste liquid tank 20, and the circulation pipeline is further provided with a sight glass 16, an exhaust valve 19, a circulation valve 17 and a plurality of sampling ports 15, and the circulation valve 17 is located in the branch line and the buffer tank Between the entrances of 21. In use, the target liquid to be evaluated is circulated in the circulation line, and the flow rate controller 13 is used to control the flow rate of the target liquid, and the flow and dissolution of the target liquid in the circulation line can be observed through the sight glass 16.
如图2所示，本发明驱油聚合物管道内溶解的评价***还包括自动控制单元，该自动控制单元包括PLC(Programmable Logic Controller，可编程逻辑控制器)控制器26和上位机25，PLC控制器26和上位机25连接。优选地，第一阀门10和第二阀门11均为电动阀，流速控制器13为电磁流量计，第一阀门10、第二阀门11和流速控制器13均与PLC控制器26连接，这样通过PLC控制器26就可以对第一阀门10、第二阀门11和流速控制器13进行控制，控制第一阀门10和第二阀门11为打开或关闭状态就可以控制相应管路的通断，流速控制器13一方面能够检测管路中目的液的流量，另一方面也可以控制管路中目的液的流速。As shown in FIG. 2, the evaluation system for dissolving in the oil displacement polymer pipeline of the present invention further includes an automatic control unit including a PLC (Programmable Logic Controller) controller 26 and a host computer 25, PLC. The controller 26 is connected to the upper computer 25. Preferably, the first valve 10 and the second valve 11 are both electric valves, the flow rate controller 13 is an electromagnetic flow meter, and the first valve 10, the second valve 11 and the flow rate controller 13 are both connected to the PLC controller 26, so that The PLC controller 26 can control the first valve 10, the second valve 11 and the flow rate controller 13, and control the opening and closing states of the first valve 10 and the second valve 11 to control the on and off of the corresponding pipeline. On the one hand, the controller 13 is capable of detecting the flow rate of the target liquid in the pipeline, and on the other hand, controlling the flow rate of the target liquid in the pipeline.
如图1-2所示，优选地，本发明的循环管路上设有若干个压力变送器14，该压力变送器14与PLC控制器26连接，压力变送器14用于检测循环管路中的压力，并将检测到的压力信息发送给PLC控制器26，PLC控制器26将接收到的压力信息发送给上位机25。缓冲罐21中设有温度变送器22和液位变送器23，温度变送器22和液位变送器23均与PLC控制器26连接，温度变送器22用于检测缓冲罐21中目的液的温度并将检测到的温度信息发送给PLC控制器26，液位变送器23用于检测缓冲罐21中目的液的液位并将检测到的液位信息发送给PLC控制器26。螺杆泵24通过变频器27与PLC控制器26连接，这样PLC控制器26就可以控制螺杆泵24。As shown in FIG. 1-2, preferably, the circulation pipeline of the present invention is provided with a plurality of pressure transmitters 14, which are connected to the PLC controller 26, and the pressure transmitter 14 is used for detecting the circulation tube. The pressure in the road sends the detected pressure information to the PLC controller 26, and the PLC controller 26 transmits the received pressure information to the upper computer 25. The buffer tank 21 is provided with a temperature transmitter 22 and a liquid level transmitter 23, and the temperature transmitter 22 and the liquid level transmitter 23 are both connected to the PLC controller 26, and the temperature transmitter 22 is used for detecting the buffer tank 21 The temperature of the target liquid is sent to the PLC controller 26, and the liquid level transmitter 23 is configured to detect the liquid level of the target liquid in the buffer tank 21 and send the detected liquid level information to the PLC controller. 26. The screw pump 24 is connected to the PLC controller 26 via a frequency converter 27 so that the PLC controller 26 can control the screw pump 24.
如图1所示，下面介绍本发明驱油聚合物管道内溶解的评价***的工作过程，第一步，关闭排液阀门18和第二阀门11，打开循环阀门17、排气阀19及第一阀门10，目的液进入本发明的评价***，排气阀19的作用是排除本发明的循环管路中的气体，以使本发明的循环管路充满目的液。 As shown in FIG. 1, the working process of the evaluation system for dissolving in the oil displacement polymer pipe of the present invention is described below. First, the liquid discharge valve 18 and the second valve 11 are closed, and the circulation valve 17, the exhaust valve 19 and the first are opened. A valve 10, the target liquid enters the evaluation system of the present invention, and the exhaust valve 19 functions to exclude the gas in the circulation line of the present invention so that the circulation line of the present invention is filled with the target liquid.
第二步，流入本发明的评价***的目的液先经过静混器12，静混器12能够进一步混合聚合物干粉和水，使聚合物干粉与水混合更均匀，使目的液在管路中形成稳流，有利于后续对目的液的取样，提高了本发明的评价***的准确性；通过流速控制器13控制管路中目的液的流速，一方面可以将目的液的流速控制为油田注聚流速，这样就可以模拟实际的油田注聚环境；另一方面不同油田注聚时目的液的流速也不一样，将目的液的流速控制为不同的值就可以模拟不同油田的条件。目的液流经流速控制器13、视镜16和循环阀门17后流入缓冲罐21内，操作人员通过视镜16可以观察目的液在循环管路中的流动及溶解情况。In the second step, the target liquid flowing into the evaluation system of the present invention first passes through the static mixer 12, and the static mixer 12 can further mix the polymer dry powder and water to make the polymer dry powder and water mix more uniformly, so that the target liquid is in the pipeline. Forming a steady flow facilitates subsequent sampling of the target liquid, and improves the accuracy of the evaluation system of the present invention; the flow rate controller 13 controls the flow rate of the target liquid in the pipeline, and on the one hand, the flow rate of the target liquid can be controlled as an oil field injection. The flow rate can be simulated so that the actual oilfield injection environment can be simulated. On the other hand, the flow rate of the target liquid is different when different oil fields are injected. By controlling the flow rate of the target liquid to different values, the conditions of different oil fields can be simulated. The target liquid flows into the buffer tank 21 through the flow rate controller 13, the mirror 16 and the circulation valve 17, and the operator can observe the flow and dissolution of the target liquid in the circulation line through the sight glass 16.
第三步，通过液位变送器23检测缓冲罐21中目的液的液位，当目的液达到设定液位后，关闭排气阀19和第一阀门10，打开第二阀门11和螺杆泵24，本步骤的过程可以通过PLC控制器26的自动控制实现；由螺杆泵24提供动力，目的液开始在静混器12、流速控制器13、缓冲罐21、螺杆泵24和第二阀门11组成的循环管路中循环流动。其中，目的液达到设定液位后再启动螺杆泵24，这样能够防止螺杆泵24被抽空，起到保护螺杆泵24的作用。打开循环管路上的取样口15就可以对目的液进行取样，取样口15的个数及设置的位置可以根据实际需求而定，例如，当实际注聚过程中是将目的液注入1000m的井下时，那就需要了解目的液在流动1000m后溶解效果、理化指标等是否符合要求，本发明的循环管路中目的液的流速(通过上述第二步设置，目的液的流速是模拟实际油田注聚的流速)是已知的，目的液进入本发明的评价***的时间也是已知的，那么根据目的液的流速和流动的距离(1000m)，可以计算出目的液需要的流动时间，这样就可以在本发明的循环管路中的一个特定位置设置取样口15，以使在经过需要的流动时间后，目的液流动到取样口15处，且目的液流动的距离为1000m。使用本发明的评价***时，从目的液流入本发明的评价***起，经过需要的流动时间后，操作人员在取样口15处取样，就可以得到目的液流动1000m的样品，然后操作人员将取出的目的液样品送至检验中心，以检验聚合物干粉的溶解效果、理化指标等是否合格。当然也可以在目的液流动800m或500m的位置设置取样口15，这样可以得到更多关于聚合物干粉的溶解效果、理化指 标的数据，以对聚合物干粉的溶解过程有更多了解，特别是当目的液样品的溶解效果、理化指标等不合格时，800m或500m的样品数据可以为改进聚合物干粉的配方或生产工艺提供数据依据。压力变送器14和温度变送器22可以实时检测循环管路中的压力和温度，为聚合物的溶解效果、理化指标等的评价提供了更多的数据支持。In the third step, the liquid level of the target liquid in the buffer tank 21 is detected by the liquid level transmitter 23, and after the target liquid reaches the set liquid level, the exhaust valve 19 and the first valve 10 are closed, and the second valve 11 and the screw are opened. The pump 24, the process of this step can be realized by the automatic control of the PLC controller 26; the power is supplied by the screw pump 24, and the target liquid starts at the static mixer 12, the flow rate controller 13, the buffer tank 21, the screw pump 24, and the second valve. 11 circulating circulation lines are formed. Wherein, the screw pump 24 is activated after the target liquid reaches the set liquid level, so that the screw pump 24 can be prevented from being evacuated, thereby protecting the screw pump 24. The target liquid can be sampled by opening the sampling port 15 on the circulation line. The number of sampling ports 15 and the set position can be determined according to actual needs, for example, when the target liquid is injected into the well of 1000 m during the actual injection process. Then, it is necessary to know whether the dissolution effect, physical and chemical indicators, etc. of the target liquid after flowing 1000m meet the requirements, and the flow rate of the target liquid in the circulation line of the present invention (by the second step set above, the flow rate of the target liquid is simulated actual oilfield injection. The flow rate is known, and the time at which the target liquid enters the evaluation system of the present invention is also known. According to the flow rate of the target liquid and the distance of the flow (1000 m), the flow time required for the target liquid can be calculated, so that The sampling port 15 is provided at a specific position in the circulation line of the present invention so that after the required flow time, the target liquid flows to the sampling port 15, and the distance of the target liquid flows is 1000 m. When the evaluation system of the present invention is used, after the target liquid flows into the evaluation system of the present invention, after the required flow time, the operator samples at the sampling port 15, and a sample of the target liquid flowing 1000 m can be obtained, and then the operator will take out the sample. The target liquid sample is sent to the inspection center to check whether the dissolution effect, physical and chemical indicators, etc. of the polymer dry powder are qualified. Of course, it is also possible to set the sampling port 15 at a position where the target liquid flows 800 m or 500 m, so that more dissolution effects on the polymer dry powder can be obtained, and physical and chemical means The target data, in order to understand the dissolution process of the polymer dry powder, especially when the dissolution effect, physical and chemical indicators of the target liquid sample are unqualified, the sample data of 800m or 500m can be used to improve the formulation or production process of the polymer dry powder. Provide data basis. The pressure transmitter 14 and the temperature transmitter 22 can detect the pressure and temperature in the circulation pipeline in real time, and provide more data support for the evaluation of the dissolution effect and physical and chemical indexes of the polymer.
第四步，实验结束后，关闭循环阀门17，打开排液阀门18，目的液流入废液罐20中。In the fourth step, after the end of the experiment, the circulation valve 17 is closed, the drain valve 18 is opened, and the target liquid flows into the waste liquid tank 20.
优选地，取样口15为三位取样口，以在管路中的不同管位对目的液取样，例如在管路的中心位置取样，在管路半径的二分之一处取样，因为管路中不同管位处目的液的流速很可能会有差异，聚合物的溶解情况也会受影响，在不同管位处对目的液取样，能够更全面了解聚合物干粉的溶解情况。缓冲罐21、废液罐20和驱油聚合物管道内溶解的评价***的管路均采用316L不锈钢制作，316L不锈钢耐腐蚀性极强，能够延长设备的使用寿命。Preferably, the sampling port 15 is a three-position sampling port for sampling the target liquid at different pipe positions in the pipeline, for example, sampling at the center of the pipeline, sampling at one-half of the radius of the pipeline, because the pipeline The flow rate of the target liquid at different tube positions is likely to be different, and the dissolution of the polymer is also affected. The sampling of the target liquid at different tube positions can provide a more comprehensive understanding of the dissolution of the polymer dry powder. The tubes of the buffer tank 21, the waste liquid tank 20 and the evaluation system for dissolving in the oil-dispelling polymer pipe are made of 316L stainless steel, and the 316L stainless steel is extremely resistant to corrosion and can prolong the service life of the equipment.
本发明的评价***不仅能够用于聚合物的溶解效果、理化指标评价，还能够对表面活性剂，酸化剂，杀菌剂，防膨剂等通过直接在管路里溶解或者分散注入油藏的材料进行测试和实验，以对其进行评价。 The evaluation system of the present invention can be used not only for the dissolution effect of the polymer, the evaluation of physical and chemical properties, but also for the surfactant, the acidifier, the bactericide, the anti-swelling agent, etc., which are dissolved or dispersed directly into the reservoir through the pipeline. Tests and experiments were conducted to evaluate them.

Claims (8)

  1. 一种驱油聚合物管道内溶解的评价***，其特征在于，包括第一阀门、静混器、流速控制器、缓冲罐、螺杆泵和第二阀门；所述第一阀门的入口与输送待评价的目的液的管路连接，该第一阀门的出口分别与所述第二阀门、所述静混器连接；所述静混器、所述流速控制器、所述缓冲罐、所述螺杆泵和所述第二阀门依次连接组成循环管路，该循环管路设有分支管路，所述分支管路上设有排液阀门，所述排液阀门的出口连接有废液罐，所述循环管路上还设有排气阀、循环阀门和若干个取样口，所述循环阀门位于所述分支管路和所述缓冲罐的入口之间。An evaluation system for dissolving in an oil displacement polymer pipeline, comprising: a first valve, a static mixer, a flow rate controller, a buffer tank, a screw pump and a second valve; an inlet and a delivery of the first valve a pipeline connection of the target liquid for evaluation, the outlet of the first valve being respectively connected to the second valve and the static mixer; the static mixer, the flow rate controller, the buffer tank, the screw The pump and the second valve are sequentially connected to form a circulation line, the circulation line is provided with a branch line, the branch line is provided with a drain valve, and the outlet of the drain valve is connected with a waste liquid tank, An exhaust valve, a circulation valve and a plurality of sampling ports are further disposed on the circulation line, and the circulation valve is located between the branch line and the inlet of the buffer tank.
  2. 根据权利要求1所述的驱油聚合物管道内溶解的评价***，其特征在于，还包括自动控制单元，该自动控制单元包括PLC控制器和上位机，所述PLC控制器和所述上位机连接；所述第一阀门和所述第二阀门均为电动阀，所述流速控制器为电磁流量计，所述第一阀门、所述第二阀门和所述流速控制器均与所述PLC控制器连接。The evaluation system for dissolving in an oil displacement polymer pipeline according to claim 1, further comprising an automatic control unit comprising a PLC controller and a host computer, the PLC controller and the upper computer Connecting; the first valve and the second valve are both electric valves, the flow rate controller is an electromagnetic flow meter, and the first valve, the second valve and the flow rate controller are both connected to the PLC Controller connection.
  3. 根据权利要求2所述的驱油聚合物管道内溶解的评价***，其特征在于，所述循环管路上设有若干个压力变送器，该压力变送器与所述PLC控制器连接。The evaluation system for dissolving in an oil displacement polymer pipeline according to claim 2, wherein the circulation pipeline is provided with a plurality of pressure transmitters, and the pressure transmitter is connected to the PLC controller.
  4. 根据权利要求2或3所述的驱油聚合物管道内溶解的评价***，其特征在于，所述缓冲罐中设有温度变送器，该温度变送器与所述PLC控制器连接。The evaluation system for dissolving in an oil displacement polymer pipeline according to claim 2 or 3, characterized in that the buffer tank is provided with a temperature transmitter, and the temperature transmitter is connected to the PLC controller.
  5. 根据权利要求2或3所述的驱油聚合物管道内溶解的评价***，其特征在于，所述缓冲罐中设有液位变送器，该液位变送器与所述PLC控制器连接。The evaluation system for dissolving in the oil displacement polymer pipeline according to claim 2 or 3, wherein the buffer tank is provided with a liquid level transmitter, and the liquid level transmitter is connected to the PLC controller. .
  6. 根据权利要求1-3中任一项所述的驱油聚合物管道内溶解的评价***，其特征在于，所述循环管路上还设有视镜。The evaluation system for dissolution in an oil displacement polymer pipe according to any one of claims 1 to 3, characterized in that the circulation line is further provided with a sight glass.
  7. 根据权利要求1-3中任一项所述的驱油聚合物管道内溶解的评价***，其特征在于，所述取样口为三位取样口。The evaluation system for dissolution in an oil displacement polymer pipe according to any one of claims 1 to 3, wherein the sampling port is a three-position sampling port.
  8. 根据权利要求1-3中任一项所述的驱油聚合物管道内溶解的评价***，其 特征在于，所述缓冲罐、所述废液罐和所述驱油聚合物管道内溶解的评价***的管路均采用316L不锈钢制作。 An evaluation system for dissolution in an oil displacement polymer pipe according to any one of claims 1 to 3, which It is characterized in that the buffer tank, the waste liquid tank, and the piping of the evaluation system dissolved in the oil displacement polymer pipe are all made of 316L stainless steel.
PCT/CN2016/079951 2016-04-14 2016-04-22 Evaluation system for determining technological parameters for dissolving of oil-displacing polymer in pipe WO2017177476A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610231787.1 2016-04-14
CN201610231787.1A CN105716996A (en) 2016-04-14 2016-04-14 Technological parameter determined evaluation system for dissolution of flooding polymers in pipeline

Publications (1)

Publication Number Publication Date
WO2017177476A1 true WO2017177476A1 (en) 2017-10-19

Family

ID=56160148

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/079951 WO2017177476A1 (en) 2016-04-14 2016-04-22 Evaluation system for determining technological parameters for dissolving of oil-displacing polymer in pipe

Country Status (2)

Country Link
CN (1) CN105716996A (en)
WO (1) WO2017177476A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10344129B2 (en) 2016-12-07 2019-07-09 Chevron U.S.A. Inc. Methods and systems for generating aqueous polymer solutions
US10619087B2 (en) 2015-12-08 2020-04-14 Chevron U.S.A. Inc. Methods for hydrocarbon recovery
US10626320B2 (en) 2015-12-08 2020-04-21 Chevron U.S.A. Inc. Methods for hydrocarbon recovery
US11220622B2 (en) 2017-06-30 2022-01-11 Chevron U.S.A. Inc. High stability polymer compositions for enhanced oil recovery applications
US11753580B2 (en) 2015-12-08 2023-09-12 Kemira Oyj Inverse emulsion compositions

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109281666B (en) * 2018-10-23 2023-09-26 长江大学 Oxygen-assisted microorganism oil displacement physical evaluation equipment and evaluation method
CN110410049A (en) * 2019-07-24 2019-11-05 王雷 A kind of method and device thereof for evaluating polymer solution adsorptivity in porous media

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140092A1 (en) * 2011-04-11 2012-10-18 S.P.C.M. Sa Device for measuring and controlling on-line viscosity at high pressure
CN203688397U (en) * 2014-02-24 2014-07-02 侯鹏 On-line viscosity detection device for tertiary recovery injection system of oil field
CN104777076A (en) * 2015-04-20 2015-07-15 西南石油大学 Secondary shear experimental method for measuring performance parameters of oil displacing polymer solutions
CN104792659A (en) * 2015-04-20 2015-07-22 西南石油大学 Two-stage shearing method for testing property parameter of polymer solution for expelling oil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101256179B (en) * 2007-03-01 2012-01-11 中国石油天然气股份有限公司 Indoor test loop path for oil product drag reducer
CN201810293U (en) * 2010-10-14 2011-04-27 中国石油天然气股份有限公司 Diluting and preparing device for chemical flooding in oil field
CN202119760U (en) * 2011-06-09 2012-01-18 中国石油化工股份有限公司 Drag reducer evaluating device
JP5675570B2 (en) * 2011-12-02 2015-02-25 三菱重工業株式会社 Lubricating oil deterioration evaluation device and lubricating oil deterioration evaluation system
CN102590028B (en) * 2011-12-22 2014-04-02 西南石油大学 Multifunctional fluid annular channel experiment device
CN204352835U (en) * 2014-12-23 2015-05-27 冠礼控制科技（上海）有限公司 Online diluent facilities
CN205580925U (en) * 2016-04-14 2016-09-14 河南正佳能源环保股份有限公司 Dissolve evaluation system that technological parameter confirms in displacement of reservoir oil polymer pipeline

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140092A1 (en) * 2011-04-11 2012-10-18 S.P.C.M. Sa Device for measuring and controlling on-line viscosity at high pressure
CN203688397U (en) * 2014-02-24 2014-07-02 侯鹏 On-line viscosity detection device for tertiary recovery injection system of oil field
CN104777076A (en) * 2015-04-20 2015-07-15 西南石油大学 Secondary shear experimental method for measuring performance parameters of oil displacing polymer solutions
CN104792659A (en) * 2015-04-20 2015-07-22 西南石油大学 Two-stage shearing method for testing property parameter of polymer solution for expelling oil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10619087B2 (en) 2015-12-08 2020-04-14 Chevron U.S.A. Inc. Methods for hydrocarbon recovery
US10626320B2 (en) 2015-12-08 2020-04-21 Chevron U.S.A. Inc. Methods for hydrocarbon recovery
US10822539B2 (en) 2015-12-08 2020-11-03 Chevron U.S.A. Inc. Methods for hydrocarbon recovery
US11084973B2 (en) 2015-12-08 2021-08-10 Chevron U.S.A. Inc. Methods for hydrocarbon recovery
US11753580B2 (en) 2015-12-08 2023-09-12 Kemira Oyj Inverse emulsion compositions
US10344129B2 (en) 2016-12-07 2019-07-09 Chevron U.S.A. Inc. Methods and systems for generating aqueous polymer solutions
US10865279B2 (en) 2016-12-07 2020-12-15 Chevron U.S.A. Inc. Methods and systems for generating aqueous polymer solutions
US11261300B2 (en) 2016-12-07 2022-03-01 Chevron U.S.A. Inc. Methods and systems for generating aqueous polymer solutions
US11220622B2 (en) 2017-06-30 2022-01-11 Chevron U.S.A. Inc. High stability polymer compositions for enhanced oil recovery applications

Also Published As

Publication number Publication date
CN105716996A (en) 2016-06-29

Similar Documents

Publication Publication Date Title
WO2017177476A1 (en) Evaluation system for determining technological parameters for dissolving of oil-displacing polymer in pipe
CN203178161U (en) Fracturing fluid pipeline friction measuring device
CN102590028B (en) Multifunctional fluid annular channel experiment device
CN107339097B (en) Leak stoppage evaluation device and method
CN110702595B (en) Multifunctional automatic simulation test device for top corrosion of wet gas pipeline
US20130298644A1 (en) Apparatus and Method For Measuring Viscosity of a Fluid
CN107238566B (en) Experimental device for simulating corrosion outside pipeline
RU2678712C1 (en) Stand for study of liquid flow in pipeline
CN109387332A (en) Stripping pattern draft experiment device and method in Liquid valve
CN105388249A (en) Apparatus and method for testing acid-etched crack diversion capability
CN104900131B (en) The experimental method of formation fluid overflow and leakage in a kind of simulation drilling process
CN202832449U (en) Polymer flooding oil field on line profile control device
CN110631987A (en) Multifunctional automatic simulation test device for corrosion under sediment
CN107725028A (en) A kind of horizontal well AICD intelligent water-controlleds screen casing performance test system
CN207036591U (en) Fluid-guiding type liquid fixed double phase flow erosion experiment apparatus
CN106680145B (en) Liquid pipeline friction resistance measuring device and method using same
CN207701124U (en) A kind of horizontal well AICD intelligent water-controlleds screen casing performance test system
CN205580925U (en) Dissolve evaluation system that technological parameter confirms in displacement of reservoir oil polymer pipeline
CN207180949U (en) Leakage analogue experiment installation in Liquid valve
CN203685151U (en) Heating constant-temperature device
CN111271050A (en) Horizontal well AICD intelligent water control sieve tube performance testing method
CN106884623A (en) Adjust stifled operation ground simulating device
CN211652061U (en) Horizontal well AICD intelligence water control valve capability test device
RU2659747C1 (en) Stand for research of agents for reducing hydraulic resistance during transportation of oil or oil products through a pipeline
CN111879649B (en) Temporary plugging agent performance determination device and method

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16898293

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16898293

Country of ref document: EP

Kind code of ref document: A1