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研究了低渗透油藏注水开发过程中流度随压力梯度的变化关系．分析了低渗透油藏内的胶凝结构，高分子石蜡、胶质和沥青质的特点及其对石油结构力学性质的影响．结果表明：注水开发非均质低渗透油藏时，油藏系统与外界进行着物质、能量和信息的交换．油藏内胶凝结构的形成、破坏和移动等均使得介质的稳固性和流体的均衡性起变化，在一定条件下，油藏内流度随时空在变化，因而渗流场产生突变
The relationship between fluid flow and pressure gradient during the development of low permeability reservoirs was studied. The characteristics of gel structure, macromolecular paraffin, gum and asphaltene in low permeability reservoirs and their influence on the mechanical properties of petroleum are analyzed. The results show that the reservoir system exchanges the material, energy and information with the outside world when water is injected to develop heterogeneous low permeability reservoirs. The formation, destruction and migration of the gel structure in the reservoir all make the stability of the medium and the fluid balance change. Under certain conditions, the internal fluidity of the reservoir changes with time and space, and the flow field changes abruptly