应用地层测试资料评价晋县凹陷南部下第三系油藏

Using Formation Testing Data Evaluates Eocene Reservoir in the South of Jin City Sag

晋县凹陷南部地区东西宽20km，南北长40km，面积约800km2，属于典型的中新生代单断箕状洼槽，受宁晋断裂的影响，相应形成了孔店组和沙河街组泥、砂岩储层。1990年以来已对该区下第三系进行地层测试25层，ES2＋3段赵61井获工业油流。通过对各测试层位的测试资料分析，认为ES4＋Ek为低孔、低渗、低产储层；ES2＋3导流、导压能力强，为中孔、中渗、高产储层。建议今后对该区下第三系ES2＋3储层重点勘探，兼探ES4＋Ek储层。对赵61井各层测试资料分析，认为对该地区ES2＋3储层试油，可采用一开一关工作制度。

The total areas of south region of Jin city sag is that the east-west width is 20km,and north-south length is 40km is about 800km2. It is belong to typical single fault pothole in middle Cenozoic and is effected by Ningjin rupture. It formed the muddy sand reservoir of Kongdian group and Shahe-Streat group. 25 layers have been tested in Eogene in this region since 1990. Segment Es2+2 of Zhao 61 well got industry production rate. By analysing the test date, the conclusion is that the formation of ES4 +Ek1 is low porosity,low permeability and low production formation,ES2+3 is high conductivity,middle porosity, middle permeability and high production one.The suggestion is that the ES2+2 is the main object in this region,ES4+Ek1 is the second one. The result of test interpretation of every layer in Zhao 61 well is that the production test of ES2+3 in this region should take the working system of first producing and then shutting down.