CN104020098A - Imbibition dynamic testing device under high temperature and high pressure - Google Patents
Imbibition dynamic testing device under high temperature and high pressure Download PDFInfo
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- CN104020098A CN104020098A CN201410294090.XA CN201410294090A CN104020098A CN 104020098 A CN104020098 A CN 104020098A CN 201410294090 A CN201410294090 A CN 201410294090A CN 104020098 A CN104020098 A CN 104020098A
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- 238000005213 imbibition Methods 0.000 title claims description 36
- 238000012360 testing method Methods 0.000 title description 2
- 238000005259 measurement Methods 0.000 claims description 22
- 238000002474 experimental method Methods 0.000 claims description 19
- 239000011435 rock Substances 0.000 claims description 17
- 238000005303 weighing Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
本发明涉及一种高温高压条件下渗吸动态测定装置，该渗吸动态测定装置包括：堵头、高温高压釜体端盖、高温高压釜体、数据采集引线器、比较电磁阀、测量电磁阀、称量传感器、加载机构、测量岩心、比较岩心、加热管、降温管、加压口、开关、泵、实验用液、电脑。高温高压釜体为一不锈钢材质的柱形结构，上部与堵头、高温高压釜体端盖相连，下部有一加压口，加压口与开关、泵相连。加热管、降温管位于高温高压釜体上，比较岩心、测量岩心、加载机构、称量传感器、比较电磁阀、测量电磁阀都位于高温高压釜体内，数据采集引线器通过高温高压釜体端盖连结到外部电脑上。本发明可长时间测定岩心在高温高压条件下渗吸水驱油动态，用以分析岩心在油藏条件下的渗吸水驱油效率。同时可以调节高温高压釜体以及内部实验用液的温度，测定不同温度下的渗吸水驱油动态。
The invention relates to a device for dynamic determination of imbibition under high temperature and high pressure conditions. The device for dynamic determination of imbibition comprises: a plug, an end cover of a high-temperature autoclave body, a high-temperature autoclave body, a data collection lead wire, a comparison solenoid valve, and a measurement solenoid valve , Weighing sensor, loading mechanism, measuring core, comparing core, heating tube, cooling tube, pressure port, switch, pump, experimental fluid, computer. The high-temperature autoclave body is a cylindrical structure made of stainless steel. The upper part is connected with the plug and the end cover of the high-temperature autoclave body. The lower part has a pressure port, which is connected with a switch and a pump. The heating tube and the cooling tube are located on the high-temperature autoclave body, and the comparison core, measurement core, loading mechanism, weighing sensor, comparison solenoid valve, and measurement solenoid valve are all located in the high-temperature autoclave body, and the data acquisition lead wire passes through the end cover of the high-temperature autoclave body Connect to an external computer. The invention can measure the dynamics of imbibition water displacement of rock cores under the condition of high temperature and high pressure for a long time, so as to analyze the efficiency of imbibition water displacement of rock cores under oil reservoir conditions. At the same time, the temperature of the high-temperature autoclave body and the internal experimental liquid can be adjusted, and the dynamics of imbibition water displacement at different temperatures can be measured.
Description
技术领域technical field
本发明涉及一种高温高压条件下渗吸动态测定的实验装置，具体说是一种可以实现长时间测定油藏条件下渗吸驱油动态的实验装置。The invention relates to an experimental device for measuring imbibition dynamics under high temperature and high pressure conditions, in particular to an experimental device capable of measuring the dynamics of imbibition displacement under oil reservoir conditions for a long time.
背景技术Background technique
多孔介质中，由于毛管力的作用而产生的湿相对非湿相的驱替被定义为自发渗吸。对于裂缝、基质组成的多孔介质来说，由于毛管力作用油从基质中自发渗吸到裂缝系统中是一种十分重要的采出机制，因此在实验室中模拟地层条件下的渗吸实验对指导裂缝、基质组成的多孔介质油藏的高效开发具有实际意义。In porous media, the displacement of wet phase from non-wet phase due to capillary force is defined as spontaneous imbibition. For porous media composed of fractures and matrix, the spontaneous imbibition of oil from the matrix into the fracture system due to capillary force is a very important recovery mechanism. It is of practical significance to guide the efficient development of porous media reservoirs composed of fractures and matrix.
目前装置的实验条件大都为常温常压，后期经过改进的渗吸动态测定装置的实验条件也只能满足高温或者高压条件。对于实际油藏来说，渗吸驱油环境为高温高压环境，所以用这些渗吸动态测定装置测试得到的实验结果不能真实的反映实际油藏的渗吸动态。这种由于实验装置的不足造成的实验结果偏差只能通过改进装置来减小或者避免，因此为了更加真实的模拟地层条件下的渗吸动态，有必要设计一种能在高温高压环境下进行渗吸动态测定的实验装置。At present, most of the experimental conditions of the device are normal temperature and pressure, and the experimental conditions of the improved imbibition dynamic measurement device in the later period can only meet the high temperature or high pressure conditions. For actual reservoirs, the environment of imbibition flooding is a high temperature and high pressure environment, so the experimental results obtained by using these imbibition dynamic measuring devices cannot truly reflect the imbibition dynamics of actual reservoirs. The deviation of the experimental results caused by the lack of experimental equipment can only be reduced or avoided by improving the equipment. Therefore, in order to more realistically simulate the imbibition dynamics under formation conditions, it is necessary to design a system that can perform imbibition under high temperature and high pressure environment. Experimental setup for the determination of suction dynamics.
发明内容Contents of the invention
本发明的目的是模拟并长时间测定高温高压条件下的渗吸驱油动态，为研究油藏环境下的自然渗吸动态研究提供实验支持。The purpose of the invention is to simulate and measure the dynamics of imbibition displacement under the condition of high temperature and high pressure for a long time, so as to provide experimental support for studying the dynamics of natural imbibition under the environment of oil reservoirs.
本发明的目的通过以下技术措施来实现，一种高温高压条件下渗吸动态测定装置，该渗吸动态测定装置包括：堵头、高温高压釜体端盖、高温高压釜体、数据采集引线器、比较电磁阀、测量电磁阀、称量传感器、加载机构、测量岩心、比较岩心、加热管、降温管、加压口、开关、泵、实验用液、电脑。所述高温高压釜体为一不锈钢材质的柱形结构，上部与堵头、高温高压釜体端盖相连，下部有一加压口，加压口与开关、泵相连。加热管、降温管位于高温高压釜体上，比较岩心、测量岩心、加载机构、称量传感器、比较电磁阀、测量电磁阀都位于高温高压釜体内，数据采集引线器通过高温高压釜体端盖连结到外部电脑上。The purpose of the present invention is achieved by the following technical measures, a dynamic imbibition measurement device under high temperature and high pressure conditions, the dynamic imbibition measurement device includes: a plug, a high temperature autoclave body end cover, a high temperature autoclave body, and a data acquisition lead wire , comparison solenoid valve, measurement solenoid valve, weighing sensor, loading mechanism, measurement core, comparison core, heating pipe, cooling pipe, pressure port, switch, pump, experimental fluid, computer. The high-temperature autoclave body is a columnar structure made of stainless steel, the upper part is connected with the plug and the end cover of the high-temperature autoclave body, and the lower part has a pressure port, which is connected with a switch and a pump. The heating tube and the cooling tube are located on the high-temperature autoclave body, and the comparison core, measurement core, loading mechanism, weighing sensor, comparison solenoid valve, and measurement solenoid valve are all located in the high-temperature autoclave body, and the data acquisition lead wire passes through the end cover of the high-temperature autoclave body Connect to an external computer.
在本发明的实验过程中，比较岩心和测量岩心分别悬挂于加载机构上，加载机构与称量传感器相连，称量传感器通过测量电磁阀、比较电磁阀与数据采集引线器相连。所述称量传感器可抗高温高压且具有高分辨率。In the experiment process of the present invention, the comparison rock core and the measurement rock core are suspended on the loading mechanism respectively, the loading mechanism is connected with the weighing sensor, and the weighing sensor is connected with the data acquisition lead through the measuring solenoid valve and the comparing solenoid valve. The weighing sensor can resist high temperature and high pressure and has high resolution.
在本发明的实验过程中，通过泵从加压口向高温高压釜体中泵入提前配置好的实验用液，在高温高压釜体内形成高压环境；利用加热管对高温高压釜体加温形成高温环境，配合降温管可以随时调节高温高压釜体以及内部实验用液的温度；利用比较电磁阀和比较岩心形成的质量校准机构进行自动调零和量程校准。In the experimental process of the present invention, the pre-configured experimental liquid is pumped into the high-temperature autoclave body through the pump to form a high-pressure environment in the high-temperature autoclave body; the heating tube is used to heat the high-temperature autoclave body to form In high temperature environment, with the cooling tube, the temperature of the high temperature autoclave body and the internal experimental liquid can be adjusted at any time; the automatic zero adjustment and span calibration are performed by using the comparison solenoid valve and the quality calibration mechanism formed by the comparison core.
在本发明的实验过程中，比较岩心为一块实心的刚体，实验中质量不发生变化。During the experiment process of the present invention, the comparative rock core is a solid rigid body, and the quality does not change during the experiment.
在本发明的实验过程中，加热管和降温管相互配合可以改变高温高压釜体以及内部实验用液的温度。During the experiment process of the present invention, the mutual cooperation of the heating pipe and the cooling pipe can change the temperature of the high-temperature autoclave body and the internal experiment liquid.
该发明的优点在于：设计有质量比较校准机构即比较岩心与比较电磁阀(自动调零和量程校准)避免称量传感器受温度、压力等因素影响不稳定带来的误差。高温高压釜体为不锈钢材料，可模拟油藏高温高压环境，实现高温高压条件下渗吸动态测定，可以真实的反映实际地层中的渗吸动态。采用电脑自动识别和记录实验数据，根据相关计算公式自动计算出驱油效率，降低了操作人员的劳动强度，提高了记录的准确性。The advantage of the invention is that it is designed with a mass comparison and calibration mechanism, that is, a comparison core and a comparison solenoid valve (automatic zeroing and range calibration) to avoid errors caused by the instability of the weighing sensor affected by factors such as temperature and pressure. The body of the high-temperature and high-pressure autoclave is made of stainless steel, which can simulate the high-temperature and high-pressure environment of the oil reservoir, realize the dynamic measurement of imbibition under high temperature and high pressure conditions, and can truly reflect the imbibition dynamics in the actual formation. The computer automatically recognizes and records the experimental data, and automatically calculates the oil displacement efficiency according to the relevant calculation formula, which reduces the labor intensity of the operator and improves the accuracy of the record.
附图说明Description of drawings
图1为本发明的主体结构示意图。Fig. 1 is a schematic diagram of the main structure of the present invention.
具体实施方式Detailed ways
该高温高压条件下渗吸动态测定装置较之前的渗吸仪器有所改进和创新，下面就结合附图详细介绍实验如何实施(以亲水岩心渗吸驱油为例)。The device for dynamic measurement of imbibition under high temperature and high pressure has been improved and innovated compared with previous imbibition instruments. The following will introduce how to implement the experiment in detail with reference to the attached drawings (taking hydrophilic core imbibition flooding as an example).
图1为本发明的主体结构示意图，如图1所示该高温高压条件下渗吸动态测定装置是由堵头6、高温高压釜体端盖5、数据采集引线器8、测量电磁阀9、比较电磁阀10、称量传感器4、加载机构3、测量岩心13、比较岩心12、加热管11、降温管1、高温高压釜体2、加压口17、开关16、泵15、实验用液14以及电脑7组成。高温高压釜体2上部与高温高压釜体端盖5、堵头6相连，加压口17位于高温高压釜体2下部与开关16、泵15相连，加载机构3、称量传感器4、测量电磁阀9、比较电磁阀10、测量岩心13、比较岩心12、实验用液14位于高温高压釜体2内，加热管11、降温管1位于高温高压釜体2上。加载机构3连接于称量传感器4上，称量传感器4和数据采集引线器8相连，数据采集引线器8通过堵头6连接到外部电脑7上，比较岩心12和测量岩心13分别悬挂于加载机构3上。Fig. 1 is a schematic diagram of the main body structure of the present invention, as shown in Fig. 1, the imbibition dynamic measuring device under the high temperature and high pressure condition is composed of a plug 6, a high temperature and autoclave body end cover 5, a data acquisition lead wire 8, a measuring solenoid valve 9, Comparison solenoid valve 10, weighing sensor 4, loading mechanism 3, measuring core 13, comparison core 12, heating pipe 11, cooling pipe 1, high temperature and high pressure kettle body 2, pressure port 17, switch 16, pump 15, liquid for experiment 14 and 7 computers. The upper part of the high-temperature autoclave body 2 is connected with the end cover 5 and the plug 6 of the high-temperature autoclave body. The pressure port 17 is located at the lower part of the high-temperature autoclave body 2 and is connected with the switch 16 and the pump 15. The loading mechanism 3, the weighing sensor 4, and the measuring electromagnetic The valve 9, the comparison solenoid valve 10, the measuring core 13, the comparison core 12, and the experimental liquid 14 are located in the high-temperature autoclave body 2, and the heating pipe 11 and the cooling pipe 1 are located on the high-temperature autoclave body 2. The loading mechanism 3 is connected to the weighing sensor 4, and the weighing sensor 4 is connected to the data acquisition lead 8, and the data acquisition lead 8 is connected to the external computer 7 through the plug 6, and the comparison core 12 and the measurement core 13 are respectively hung on the load. Institution 3 on.
本发明一种高温高压条件下渗吸动态测定装置实验时，将测量岩心13饱和原油，然后和比较岩心12一起分别悬挂于加载机构3上。将堵头6以及其下连接的数据采集引线器8、测量电磁阀9、比较电磁阀10、称量传感器4、加载机构3、比较岩心12、测量岩心13放入高温高压釜体2内，装上高温高压釜体端盖5形成封闭环境。打开开关16，通过泵15从加压口17向高温高压釜体2中泵入提前配置好的实验用液14，在高温高压釜体2内形成高压环境；利用加温管10对高温高压釜体2加温形成高温环境进行渗吸动态测定实验。渗吸实验用液和接触发生渗吸，测量岩心13的质量的变化通过称量传感器4和数据采集引线器8传输到电脑7中读出。During the experiment of the imbibition dynamic measuring device under the condition of high temperature and high pressure of the present invention, the measured rock core 13 is saturated with crude oil, and then hung on the loading mechanism 3 together with the comparative rock core 12 respectively. Put the plug 6 and the data acquisition lead wire 8 connected thereunder, the measuring solenoid valve 9, the comparing solenoid valve 10, the weighing sensor 4, the loading mechanism 3, the comparing rock core 12, and the measuring rock core 13 into the high-temperature autoclave body 2, Load onto the high-temperature autoclave body end cover 5 to form a closed environment. Open the switch 16, pump the experimental liquid 14 configured in advance from the pressure port 17 to the high-temperature autoclave body 2 by the pump 15, and form a high-pressure environment in the high-temperature autoclave body 2; The body 2 is heated to form a high-temperature environment to perform imbibition dynamic measurement experiments. The liquid in the imbibition test is contacted with the imbibition, and the change of the measured quality of the rock core 13 is transmitted to the computer 7 for reading through the weighing sensor 4 and the data acquisition lead 8.
本渗吸实验装置在进行实验时，主要包括如下步骤(以亲水岩心渗吸驱油为例)：The imbibition experimental device mainly includes the following steps when carrying out the experiment (taking hydrophilic core imbibition flooding as an example):
(1)准备工作：实验用岩心饱和油，实验用液的配制，质量计量系统的调节等。(1) Preparatory work: core saturated oil for experiment, preparation of experiment liquid, adjustment of mass measurement system, etc.
(2)将饱和了油的测量岩心和比较岩心安装在加载机构上，与上部的装置一起放入高温高压釜体内。(2) Install the oil-saturated measuring core and comparison core on the loading mechanism, and put them into the high-temperature autoclave together with the upper device.
(3)利用泵将实验用液泵入高温高压釜体内，用加热管对高温高压釜体以及内部实验用液加热到指定温度，形成高温高压环境进行实验。(3) Use a pump to pump the experimental liquid into the high-temperature autoclave body, and use a heating tube to heat the high-temperature autoclave body and the internal experimental liquid to a specified temperature to form a high-temperature and high-pressure environment for experiments.
(4)一定时间间隔后利用比较岩心连接的电磁阀进行量程校准和调零。(4) After a certain time interval, use the solenoid valve connected to the comparison core to perform range calibration and zero adjustment.
(5)利用降温管和加热管对温度进行调节，进行不同温度下的渗吸动态测定实验。(5) Use the cooling tube and the heating tube to adjust the temperature, and carry out the imbibition dynamic measurement experiment at different temperatures.
Claims (6)
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| CN105866008A (en) * | 2016-05-30 | 2016-08-17 | 西安石油大学 | Comparative study measuring instrument for imbibition mechanisms of different reservoirs |
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| CN109916799A (en) * | 2019-03-22 | 2019-06-21 | 西南石油大学 | An experimental method for measuring the relative permeability of spontaneous imbibition in unconventional tight gas reservoirs |
| CN110174430A (en) * | 2019-06-03 | 2019-08-27 | 西南石油大学 | The measuring device and method of rock core imbibition simulated experiment under a kind of high-temperature and high-pressure conditions |
| CN114594034A (en) * | 2020-12-07 | 2022-06-07 | 中国石油天然气股份有限公司 | Reservoir dynamic imbibition simulation system and control method |
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