摘要
渤海湾地区第三系中存在大量低电阻率油层,主要由复杂的孔隙结构、蒙脱石等具有附加导电性的粘土、盐水泥浆侵入或淡水泥浆深侵入等形成。针对实际地质情况,作者建议采取相应的测井与解释方法。对新勘探井必须进行“及时测井”或压力梯度等测井,对于老井,应采取多学科结合的综合解释方法复查。以此使得低电阻率油层成为新的勘探目标。
There are a lot of conductive oil reservoir in the Tertiary System in the Bohai Gulf area, those formations are mainly caused by complicate pore structure. clay content (montomorillonite and other conductive clays), salt- or fresh-water mud encroachment. Under such geological setting, the author suggests to adopt corresponding logging and interpreting methods. The 'In-time well log' must be done for new exploration wells, and comprehensive interpreting method for old wells, so that the conductive oil reservoir could be viewed as new exploration targets.
