石油与天然气地质 ›› 1984, Vol. 5 ›› Issue (3): 271-275.doi: 10.11743/ogg19840310

• 论文 • 上一篇    下一篇

松辽盆地齐家凹陷的石油地质特征

王衡鉴   

  1. 大庆石油管理局
  • 收稿日期:1984-03-30 出版日期:1984-09-25 发布日期:2012-01-16

FEATURES OF PETROLEUM GEOLOGY IN QIJIA DEPRESSION,SONGLIAO BASIN

Wang Hengjian   

  1. Daqing Petroleum Administration
  • Received:1984-03-30 Online:1984-09-25 Published:2012-01-16

摘要:

齐家凹陷位于松辽盆地北部,在大庆长垣与泰凸隆起之间,构造上为一向斜。全区面积二千平方公里,勘探程度很低。近年来在一些探井获得工业油流,但产能都不高。1984年初,在凹陷西北坡,金6井的高台子油层喷油,日产38.64立方米,是大庆油田外围近十年来第一口自喷探井,产能较高。继金6井之后,凹陷中部金2井的葡萄花油层也喷了油。射开砂层仅3米,日喷原油5.97立方米,展示了良好的勘探前景。

Abstract:

Rushing out firstly the oil flow off the wellhead from the delta-front sandbodies of Qingshankou Group,give rise to a new ground for exploration activties in Qijia depression,Songliao basin.Qijia depression measures about 2,000 km2 situated between Daqing anteclise and Taikong uplift.Its structures are quite simple,in addition to some faults,the positive structures are mainly anticlinal noses and mid-depression ridges,with 8 small anticlines found during detailed seismic examination.In this region,the lithofacies of Qingshankou and Yaojia Fms are complex.Deposition occurred mainly in transitional fluvio-lacustrine zone,therefore,a great many of sand-bodies were formed with different size and morphology.Under the control of above conditions,the main trap-types are supposed to be stratigraphic and composite stratigraphic-structural ones which may hold the larger part of poten-tial reserves.Now,the oil-gas exploration are well underway on a large scale.