大斜度定向井在张店油田勘探开发中的应用

Highly - deviated well in exploration and development of Zhangdian oilfield

张店油田为复杂断块油田,因构造形态复杂、含油面积小、单井钻遇油层少、日产能力低被定为不能系统开发的难采储量。1999年以来,通过新的开发评价揭示了其剖面、平面油气层的分布规律,通过应用大斜度定向井技术,落实了构造形态和储量规模,对主体区块进行了系统开发。该技术的成功应用,不但形成了一定的生产能力,而且实现了少井、多层、高速、高效开发,对于类似油田的开发具有一定的借鉴意义。

Zhangdian oilfield is a complex fault block oilfield and has been classified as hard - to - recover reserves due to complex structure, small oil- bearing area, less reservoirs encountered by single well, and low daily production. Since 1999, development evaluation has revealed the distribution law of oil and gas reservoirs. By applying highly - deviated well technique, the structural attitude and reserve scale have been defined, and systematical development has been carried out in host block. The application of this technique has not only brought about certain capacity, but also realized effectively developing multilayer with less wells. This may be a reference to the development of similar oilfield.