CAJ | 학술논문

我国多数地区煤层的渗透率较低,通常小于1×10-3μm2,煤层渗透率一般在0.1~0.001×10-3μm2,属于特低渗透或致密储层,对各种伤害因素更为敏感,伤害评价显得尤为重要。本文介绍几种评价煤岩储层伤害的实验方法,可评价压裂液对煤岩基质的伤害、对裂缝割理的伤害。
아국다수지구매층적삼투솔교저,통상소우1×10-3μm2,매층삼투솔일반재0.1~0.001×10-3μm2,속우특저삼투혹치밀저층,대각충상해인소경위민감,상해평개현득우위중요。본문개소궤충평개매암저층상해적실험방법,가평개압렬액대매암기질적상해、대렬봉할리적상해。
The permeability of coal seams is low in most areas in China. Usually, it is less than 1 ×10-3μm2. The permeability of coal seams generally varies from 0.1 to 0.001 ×10-3μm2 These seams belong to especially low permeability seams or compact reservoirs, which are more sensitive to all the damaging factors. Therefore, damage evaluation becomes very important. The paper introduces several experimental methods for evaluation of damages of lithologic reservoir, which can be used for evaluation of damages of frac fluids to lithologic matrix, and their damage to fissure ＆ cleavages.