摘要
依据地震、钻井资料，对塔里木盆地东北部三叠纪和侏罗纪沉积环境、相带展布、沉积演化、生储盖组合、构造活动性质及其与油气的关系进行了深入研究。结果表明，早中生代本区在断坳构造背景、高低相间的地形特征和温暖潮湿的气候条件下，形成了以长源三角洲、河流、湖沼、滨湖沼泽为特色的沉积相类型，具有湖盆小、水体浅、连通差、湖期短和多沉积中心等特点，缺少持续下沉和大量油气形成的沉积环境。作者从沉积相研究的角度认为，该区虽然见到油气显示，但不具备大中型油气田形成的沉积条件。
Based on seismic
and drilling data, indepth studies on sedimentary environment, facies belt distribution,
sedimentary evolution, sourcereservoircaprock assemblage, structure activity and its relation
with oil/gas were made. The results showed that in faultdepression tectonic setting, landform
feature of highlow alternating and climate condition of warmhumid in Early Mesozoic of study
area, the sedimentary facies characterized by longprovenance delta, river, lacustrine swamp
and shore lake swamp has been generated, and possesses characteristics of small lake basin,
shallow water body, bad communication, short lake period and multiple sedimentary center and
so on, shortcoming the sedimentary environment of continued submergence and a large
amount of hydrocarbon generation. This paper considered in the view of sedimentary facies that
there isn't sedimentary condition to form large and mediumsized oil/gas field in study area, but
smallsized oil/gas field may be formed.
出处
《新疆石油地质》
CAS
CSCD
1999年第3期229-234,共6页
Xinjiang Petroleum Geology
关键词
塔里木盆地
三叠纪
侏罗纪
油气勘探
Tarim basin Northeast Triassic
Jurassic Sedimentary facies Sourcereservoircaprock assemblage Oil anf gas exploration
