双台子油田东营组低阻油气层识别方法

METHOD OF DETECTING LOW-RESISTIVITY-FORMATION IN DONGYING LAYER OF SHUANGTAIZI OIL FIELD

双台子油田东营组油气层由于受岩性细、地层水矿化度高、束缚水饱和度高等因素的影响,造成电阻率值低,测井解释结果偏低,油、气、水层识别难度大。运用油气成藏机理、电性图版识别技术、低电阻形成理论及储层精细对比技术对双台子东营组油气层进行识别,取得了较好的效果。

It is very difficult to distinguish Oil and gas layer of Dongying Formation in Shuangtaizi oilfield because of the restrictions of lithology and structure,and other factors,oil,gas,and water layer is changeable.Based on the characteristics of oil and gas of Dongying Formation,high value of time difference and neutron - gamma of the gas layer,and low resistivity of the oil layer,use many methods such as oil and gas migration theory,gas detection using electrical chart,and reservoir fine contrast to distinguish the layers of oil,gas and water.After making producting tests,gratifying exploration results have been gotten.