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Reasonably Water Injection Time about Abnormal Pressure of Low Permeability Reservoir

机译：低渗透水库异常压力的合理注射时间

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摘要

Abnormal pressure of low permeability reservoirs is a special reservoir, which have some characteristic: low permeability, strong stress sensitivity, complex pore structure, abnormal pressure. With the pressure decreasing about bottom-hole and reservoir, the formation of the rock pore space and permeability will decrease, and reservoir stress-sensitive phenomenon of serious. All these have brought greater difficulty for developing. In order to reasonable development of those reservoirs, maintain the formation energy is important, choose the reasonable injection timing is an important aspect. In this paper, taking abnormal pressure of low permeability reservoir as an example, studies variation law of abnormally pressure reservoir rock compressibility, porosity, stress sensitivity by experimental, Associated with the nature of the reservoir to determine a reasonable water injection time, and demonstrated by numerical simulation, finally proposed reasonable water injection timing about abnormal pressure of low-permeability reservoirs.
机译：低渗透油藏的异常压力是一种特殊的水库，具有一些特征：低渗透性，强应力敏感性，复杂的孔隙结构，异常压力。随着底孔和储层的压力下降，岩石孔隙空间和渗透性的形成将减少，并且严重的储层应激敏感现象。所有这些都带来了更大的发展困难。为了合理地发展那些水库，保持形成能量很重要，选择合理的注射时间是一个重要方面。在本文中，以低渗透储层的异常压力为例，研究异常压力储层岩石压缩性的变化定律，通过实验，与水库的性质相关，以确定合理的注水时间，并证明数值模拟，最后提出了关于低渗透储层异常压力的合理注水正时。

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