通过对文181块地层特征、岩性特征、电性特征分析研究,总结出了该区块的标志层特征,对资料录取和完钻层位的卡取提供了详实和准确的地质资料。

Most domestic oilfields have entered the high aquifer-developing period, seeking for concealed oil and gas zones with low resistivity is an effect way to increase production. Take an example of the low resistivity oil zones in Dongpu Sag of Zhongyuan Oilfield, the paper discussed the displaying features according to the low resistivity oil zones. From the aspects of clay mineral content, pore throat radius, micro pore development and rock wetness, the genetic analysis was carried out, the author pointed out that the rock matrix with small grain sizes, heavier clay content, higher formation water salinity and lower reservoir height were the main reasons for forming the low resistivity oil zones in Dongpu Sag, and the affects of the influx of high salinity drilling fluid and conductive mineral bearing were also the valuable factors. The above analysis has certain reference functions for low resistivity oil zone interpretation and evaluation on wellsite.

白音查干凹陷是中原油田的风险勘探盆地,断层发育构造复杂,勘探程度低,经过近几年来的勘探获得了工业油气流。本文通过对达尔其腾格尔组的地层特征分析,为达尔其油田的勘探开发和地质录井工作起到了指导作用。