复杂储层保护技术实验研究

疏松砂岩油气层和裂缝性油气层属于比较复杂的两种油气储层，其油气层损害机理复杂，油气层保护工作难度大，主要原因在于这两种油气藏非均质性严重，代表性实验岩心难以获取，而且缺乏科学实用的实验仪器设备。针对上述问题，详细介绍了笔者在实验岩心的制备仪器、所用实验仪器、以及疏松砂岩油气层和裂缝性油气层的保护技术等方面所取得的成果，部分成果已经进行了推广应用。这些成果对今后复杂储层保护实验研究具有一定的借鉴意义。

Experimental Study on the Complicated Formation Damage Prevention

The complicated reservoirs, such as unconsolidated sandstone reservoir and fractured reservoir, have complicated mechanisms of formation damage and are difficult to be recognized and protected. The reasons lie in the following aspects. Firstly, they are both heterogeneous reservoirs. Secondly, the representative cores to be tested are difficult to be obtained. And the third, there are no scientific and practical facilities to be used. So we have worked hard for nearly 10 years on the two complicated reservoirs in the lab and made many progresses in core preparation, laboratory devices development, and the techniques for formation damage prevention. With the applications to be extended, these research results will have some effects on the formation protection of complicated oil and gas reservoirs.