The jamming mechanism of sand control screen for the montmorillonite inflation with the water
The jamming mechanism of sand control screen for the montmorillonite inflation with the water
复制标题
蒙脱石遇水膨胀防砂筛的堵塞机理
DOI：
10.1007/s13202-017-0329-z
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发表时间：
2018-03
影响因子：
2.2
通讯作者：
Jun Wei
中科院分区：
文献类型：
--
作者：
Fucheng Deng;XueFeng Shen;Qimin Liang;Lihua Wang;Jie Wang;Ziqiang Deng;Jun Wei
在机械筛管防砂完井过程中，一旦储层含水率增加，粘土矿物中的蒙脱石就会膨胀，与地层砂结合，对管柱筛管堵塞有明显的影响。根据储层产水量预测，利用页岩膨胀仪建立了蒙脱石不同含水率与膨胀性的关系，并结合不同含水率下的屏蔽堵塞试验，评价了不同含水率下蒙脱石在防砂过程中对屏蔽堵塞的封堵效果。实验发现：(1)如果储层产水，两种蒙脱石的膨胀高度在原油含水率小于10%或大于20%时相近，蒙脱石膨胀高度较大，含水率在10%~20%之间时膨胀率可达188%。(2)通过防砂模拟实验，当含水率为10%和30%时，堵屏速度最快，每米采油指数最低，当原油含水率为0时，堵塞率提高近3倍。(3)油水比对金属丝网每米采油指数的影响大于蒙脱石的膨胀率，主要反映在含水率接近20-30%。通过降低产出液的含水率，可以降低堵筛的程度和速度。
In the process of well completion with mechanical screen to control sand, once the water content of the reservoir increased, the montmorillonite in clay minerals would swell which combined with formation sand has an obvious effect on the plugging of screen pipe in production string. According to the prediction of water production of reservoir, shale expansion instrument was used to establish the relationship between the different water content and swelling properties of montmorillonites and combined with the clogging test of screen under different water content to evaluate the blocking effect of montmorillonite under different water content on the clogging of screen in the process of sand control. It can be found in the experiment that: (1) If the reservoir products water, the expansion height of two kinds of montmorillonites is similar when the water content of oil is less than 10% or more than 20%, the expansion height of montmorillonites is large of which expansion rate can reach to 188% when the water content is between 10 and 20%. (2) Through the simulation experiment of sand control, when the water content is 10 and 30%, the screen blocking is the fastest, and the productivity index per meter is the lowest, the blockage rate is increased by nearly three times when the water content of oil is 0. (3) The influence of concentration ratio of oil and water on the productivity index per meter of metal mesh screen is larger than the swelling of montmorillonites which is mainly reflected in the water content is close to 20–30%. The degree and speed of screen blocking can be reduced by reducing the water content of produced fluid.
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DOI：
--
发表时间：
2001
期刊：
Journal of the University of Petroleum,China
影响因子：
--
作者：
Cai Jin
通讯作者：
Cai Jin
影响因子：
2.5
作者：
Ju Bing
通讯作者：
Ju Bing
影响因子：
1.8
作者：
W. Lihua
通讯作者：
W. Lihua
DOI：
--
发表时间：
2007
期刊：
Journal of China University of Petroleum
影响因子：
--
作者：
Zhu Hua-yin
通讯作者：
Zhu Hua-yin
DOI：
10.2523/iptc-16449-ms
发表时间：
2013-03
期刊：
--
影响因子：
--
作者：
K. Chan;Danny Chong;R. Masoudi;M. Othman;N. S. B. M. Nordin
通讯作者：
K. Chan;Danny Chong;R. Masoudi;M. Othman;N. S. B. M. Nordin