方法利用高温、高压反应釜模拟现场热采条件，结合Ｘ衍射、扫描电镜、能谱分析等手段，观察储层岩石在高温、高ｐＨ值条件下发生的变化。目的研究温度升高后，储层矿物发生的变化，为高凝油热伤害实验研究提供依据。结果曹台储层岩石在高温、高ｐＨ值条件下，储层矿物发生强烈溶解，随着温度和ｐＨ值的不断升高，产生新生矿物———方沸石和钠沸石，同时伴随有颗粒脱落及破碎，并产生大量的颗粒运移，在地层内部会产生坍塌现象。结论注汽温度、注入液的ｐＨ值和溶液介质是影响储层变化和造成储层伤害的主要因素，因此，保持高温，提高注汽干度，控制注入液的ｐＨ值以及选择有利的注入液介质是开采的关键 Methods High-temperature and high-pressure reactor were used to simulate field thermal recovery conditions. X-ray diffraction, scanning electron microscopy and energy spectrum analysis were used to observe the changes of rock under high temperature and high pH. Aim To study the change of mineralogy after the temperature rises, and provide the basis for the experimental study on thermal injury of high pour point oil. Results The rocks of Caotai reservoir strongly dissolved in the rock under high temperature and high pH. With the increase of temperature and pH, new minerals such as analcime and natrolite were produced, accompanied by the falling of particles And broken, and produce a large number of grain migration, collapse within the formation will occur. Conclusions Steam injection temperature, the pH value of injection solution and solution medium are the main factors that affect reservoir variation and damage to reservoirs. Therefore, maintaining high temperature, increasing the dryness of injection steam, controlling the pH value of injection solution and selecting the favorable injection solution Media is the key to mining