摘要
固城川地区处于陕甘宁盆地西南部,20多年来一直视为勘探空白区。1994年发现了裂缝性工业油流(宁探1井);1995年发现了低渗工业性油流(固1井);1996年进行了区域甩开勘探,证实三叠系延长组油层形成了大面积区带富集,纵向油层多,单层厚度大,普遍低孔低渗。
Located in the southwestern part of the Shaan-Gan-Ning Basin, Guchengchuan area has been regarded as the blank area of exploration for more than 20 years. In 1994, the fracture-type commercial oil flow was discovered (in Well Ningtan-1); the low-permeability commercial oil flow is discovered in 1995 (in Well Gu-1); in 1996, a large-scale exploration was carried out ill the area, which verified a large area, multiple vertical oil layer, great single layer and general low permeability accumulations formed in Triassic Yanchang Formation.
关键词
陕甘宁盆地
固城川地区
油气勘探
Shaan-Gan-Ning Basin, Guchengchuan area, delta, oil/gas reservoir, low-permeability reservoir, exploration prospect
