安塞油田延长组长10有效储层下限研究

Research of lower limit of effective reservoir ChanglO of Yanchang Formation in Ansai oilfield

对安塞油田三叠系延长组长10储层大量的取心试验资料，通过采用测试法、统计丢失法、最小含油喉道半径法、密闭取心法等统计方法，对该区延长组长10有效储层“四性”关系下限标准进行了充分研究论证．为长10油层有效厚度测井解释和油藏的面积圈定奠定了坚实的基础。

In the light of lots of coring test data from the ChanglO reservoirs of Triassic Yanchang Formation in Ansai Oilfield,the standard lower limits of ＂four-property＂ relations of the effective ChanglO reservoirs in the area have been fully researched and expounded by using the test method, loss statistics method, the minimum oil-bearing throat radius method, the pressure coring and other statistical methods. This laid a solid foundation for the effective thickness log interpretation of the Chang 10 reservoirs and lhe reservoir＇ area delineation.