辽河坳陷锦99块地质特征与油气聚集规律

The Geological Features and Hydrocarbon Accumulation in Block Jin-99 of Liaohe Depression

辽河油田锦99块构造特征复杂,储层砂体变化快,区块1992年投入开发,但初期投产油井生产效果较差,区块全面停产12年,属于尚未进行大规模开发的地区,为了正确识别油水层并为制定油田开发方案提供依据,建立该地区油水关系解释图版和识别标准显得尤为重要,通过储层"四性"(指岩性、物性、含油性、电性)关系研究,应用交会图版法来识别油水层。同时,结合对区块内各四级断块内的油井进行试采,来综合确定含油层系,为下部开发部署提供可靠依据。

Block Jin-99 in Liaohe Oilfield is an area which hard to adopt,with complex geological features and fast-changing sand body.The area was developed from 1992, which with poor production had to stop exploitation for 16 years,is a place that has not been developed massively. In order to correctly identify the oil-water layer and provide the basis for oil field development program, establishing the oil-water relationship interpretation plate and identifying standard appears especially necessary. Through the study of Block Jin-99 of ＂four property＂ （refers to lithology, petrophysical property, oil content, electrical）, apply crossplot engraving method and comprehensive evaluation standard to identify oil-water layer. Moreover, according to the result of the well production in all fauts, finaly to determine the oil-bearing strata, provide a reliable basis for the next step development.