摘要
通过大三江地区油气勘探区域研究，确定了叠合型、继承型和残留型3种盆地类型；明确了早白垩世和古近纪地层是主要的勘探目的层，古近系和下白垩统为主力烃源岩，中上部组合具有较好的成藏条件。重点盆地的勘探进展包括：方正断陷石油勘探获得突破，断陷勘探规模扩大；在汤原断陷、虎林盆地首次见到少量油流，在孙吴．嘉荫盆地钻探见到较好的烃源岩和储层。大三江地区油气勘探的攻关方向是开展3个层次的勘探：第一勘探层次是寻求新的接替；第二勘探层次是寻求突破；第三勘探层次是落实资源、优选坳陷。在比较详细地总结大三江地区油气勘探进展的基础上，提出了下一步的重点攻关方向。
By means of the regional studies of petroleum exploration in Large Three Rivers Region, three kinds of basins i. e. overlaid, inherited and remained types are determined; the main exploration targets in Early Cretaceous and Palaeogene formations are also made clear, and moreover Cretaceous and Palaeogene systems are verified to be main source rocks and the assemblage in the upper and middle parts possess much better reservoir-forming conditions. The exploration progress in important basins： the oil exploration breakthrough has obtained in Fangzheng Faulted Depression and furthermore the size has enlarged a great deal; a little oil flow is first seen in Tangyuan Depression and Hulin Basin; much better source rocks and reservoirs are penetrated in Sunwu-Jiayin Basin. The three research orientations of petroleum exploration in Large Three Rivers Region ： seek for new replacement ; search for the next breakthrough ; ensure resources and optimize sags. On the basis of more detailed summarization of the exploration progresses in Large Three Rivers Region, the next key research orientations have been caught ont.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2009年第5期49-53,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
中国油气资源战略选区调查与评价项目（XQ-2004-02）资助.
关键词
盆地类型
勘探目的层
成藏条件
勘探方向
大三江地区
basin type
exploration target
reservoir-forming condition
exploration orientation
Large Three Rivers Region
