温西地区岩性圈闭识别手段与成藏研究
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摘要
温西地区经过勘探、评价、开发及滚动勘探扩展,以及地震资料的重复处理、构造精细解释和地质综合研究,发现新圈闭越来越困难。由于该地区中侏罗统三间房组发育水下三角洲分支河道、浊积扇、滑塌扇、滨浅湖滩坝沉积,砂体纵向和横向变化非常快,因此,岩性圈闭发育。同时复杂断块滚动目标不仅面临构造圈闭落实风险(主要小断层落实问题),而且还面临砂体发育程度的风险。通过滚动勘探研究,研究出一套该地区砂体刻画和成藏分析手段,经过地质综合评价,极大地增强了对这些复杂圈闭成藏和钻探的信心,对于这些岩性圈闭论证技术方法和手段,对吐哈盆地其它地区也具有一定的借鉴意义。
After exploration, evaluation, development and the extension of progressive exploration, it is more and more difficult to find the new trap in Wenxi area by seismic data reprocessing, fine interpretation of structure and synthetic geologic research. The lithologic trap was developed in this area because of the presence of the underwater offshoot of delta riverway,turbidite fan, slide fan, shallow lake aggradation and sand body fast variation in the horizontal and vertical. The target for progressive exploration of complex fault not only faces the risk of trap conformation, but also the developed degree of sand body. By study of the progressive exploration, a set of method of sand body description and reservoir analysis has been worked out, which strengthen the confidence to hydrocarbon accumulation and drilling of the complex trap through synthetic geologic evaluation. The means of lithologic trap argumentation can be a very useful reference to Tuha basin and other areas.
After exploration, evaluation, development and the extension of progressive exploration, it is more and more difficult to find the new trap in Wenxi area by seismic data reprocessing, fine interpretation of structure and synthetic geologic research. The lithologic trap was developed in this area because of the presence of the underwater offshoot of delta riverway,turbidite fan, slide fan, shallow lake aggradation and sand body fast variation in the horizontal and vertical. The target for progressive exploration of complex fault not only faces the risk of trap conformation, but also the developed degree of sand body. By study of the progressive exploration, a set of method of sand body description and reservoir analysis has been worked out, which strengthen the confidence to hydrocarbon accumulation and drilling of the complex trap through synthetic geologic evaluation. The means of lithologic trap argumentation can be a very useful reference to Tuha basin and other areas.
引文
[1]李庆忠．走向精细勘探的道路．北京:石油工业出版社,1994．
[2]裘亦楠薛叔浩．油气储层评价技术．北京:石油工业出版社, 1997．
[3]朱志澄．构造地质学．武汉:中国地质大学出版社,1999．
[4]陈永武．储集层与油气分布．北京:石油工业出版社,1995．
[2]裘亦楠薛叔浩．油气储层评价技术．北京:石油工业出版社, 1997．
[3]朱志澄．构造地质学．武汉:中国地质大学出版社,1999．
[4]陈永武．储集层与油气分布．北京:石油工业出版社,1995．
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