潍北凹陷孔店组二段页岩气资源潜力分析

Analysis on Shale Gas Resource Potential in the Second Section of Kongdian Formation in Weibei Sag

摘要:

潍北凹陷是昌潍坳陷的次一级凹陷盆地，也是胜利油田外围常规油气开采区。潍北凹陷孔店组二段发育了较厚的暗色泥页岩，是页岩气形成最有利层段，也是常规油气的生烃母岩。利用昌页参1井数据，结合以往资料，对潍北凹陷孔店组二段岩性特征，有机地球化学特征、矿物组成、泥页岩含气性特征等进行分析研究，认为孔店组二段上亚段下部和中亚段下部具备页岩气资源勘查开发潜力。

Abstract:

Weibei sag is the secondary sag basin of Changwei depression. It is also the peripheral conventional oil and gas exploration area of Shengli oilfield. Thick dark shales developed in the second section of Kongdian formation in Weibei sag. They are not only the source rock of conventional oil and gas, but also the most favorable strata for forming shale and gas. In this paper, by using the datas of Canyijing, combining with the previous datas, lithological characteristics, organic geochemical characteristics, mineral composition, gas-bearing characteristics of clay shale have been analyzed. It is regarded that there is prospecting and developing potentiality of shale gas resource in the lower part of upper sub-formation and the lower part of middle sub-formation of the second section of Kongdian formation.