冷家油田低阻储层测井二次解释模型研究

老油田测井资料的二次解释对重新进行储层评价具有十分重要的意义。低阻油气储层由于其形成原因的复杂性而成为测井解释与储层评价中的重点和难点。冷家油田沙河街组油层属于低电阻率油层，常规测井储层参数解释很容易把油层解释为水层。结合其地质情况，利用取心井的各种化验、试油和试采等资料，结合开发动态，充分挖掘测井资料对低阻油气储层的识别能力，建立了适合该区的泥质含量、孔隙度、渗透率和饱和度解释模型。提高了低阻油气储层解释的准确性，为该区剩余油挖潜奠定了基础。

Study on log secondary- interpretation model of low- resistance reservoir in Lengjia Oilfield

Secondary interpretation to log information of old oilfields has very important significance on reservoir reevaluation. Log interpretation and reservoir evaluation on the low - resistance reservoir were difficult and important because of its complexity on origin. Shahejie formation oil layer belongs to low - resistance one,which was easy to be interpreted as water layer by general log reservoir parameter interpretation. A interpretation model suitable to the muddy content, porosity, permeability and saturation in this area was established based on taking full advantage of the log information to the identification ability in the low - resistance oil - gas reservoir. It was also based on the geologic situation and development performance, and the data of assay, productivity test and production test of the cored well. It improved the precision of interpretation in the low-re-sistance oil-gas reservoir, which laid a foundation of tapping the potential of the remaining oil in this area.