大庆油田A区块应力敏感性评价实验

Evaluation of Reservoir Sensitivity of Daqing a Block

储层敏感性指的是对储层造成伤害的各种因素的敏感程度。分析储层敏感性的目的在于研究各种因素对储层的伤害程度,及时提出预防措施,最终提高采收率。对岩心做了大量的室内实验研究,参考储层评价标准对大庆油田A区块进行了敏感性评价。结果显示,该区块应力敏程度中等偏弱,3类岩心应力敏感性最大,2类岩心应力敏感性大于1类岩心敏感性。

Reservoir sensitivity refers to the sensitivity of various factors which may cause damage to reservoir.The main purpose to analysis the reservoir sensitivity is to identify the extent of formation damage caused by sensitive and put forward the preventive measures of the sensitive damage extend.The paper carried out a lot of core experimental, and use reservoir evaluation standard to evaluate the sensitive degree.The results show that the degree of sensitivity is medium to weak, The sensitivity of third class core is most strong, the sensitivity of second class core is stronger than first class core.