松辽盆地双城—太平川地区油—岩地球化学特征及油源对比研究

SOURCE ROCK AND OIL GEOCHEMISTRY AND CORRELATION IN SHUANGCHENG-TAIPINGCHUAN AREA, THE SONGLIAO BASIN

王杰 刘文汇 王铁冠 陈践发

Wang Jie Liu Wenhui Wang Tieguan Chen Jianfa

中国石油化工股份有限公司, 石油勘探开发研究院, 无锡石油地质研究所, 江苏, 无锡, 214151 2. 中国石油大学, 资源与信息学院, 北京, 102249

Wuxi Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China 2. Chinese University of Petroleum, Beijing 102249, China

双城—太平川地区为松辽盆地北部重要的油气勘探区域。对该区扶、杨油层原油和青1段、青2+3段、嫩1段暗色泥岩地球化学特征的综合分析表明,研究区原油为同一族群,主要以青1段暗色泥岩为烃源层,部分青2+3段泥岩可作为烃源层有部分生烃贡献,但限于三肇凹陷与朝阳沟阶地,嫩1段不可能作为扶、杨油层的烃源层。另外,三肇凹陷与朝阳沟阶地的扶、杨油层原油主要以三肇凹陷和朝阳沟阶地青1段泥岩为烃源灶;长春岭背斜带与王府凹陷的原油主要以王府凹陷青1段泥岩为烃源灶,三肇凹陷与朝阳沟阶地烃源灶也对长春岭背斜带原油有部分贡献。

Shuangcheng-Taipingchuan is an important petroleum exploration area in the north of Songliao Basin.By synthetically analyzing geochemical characteristics of petroleum and mudstone,it indicates that petroleum belongs to the same population in Fuyu and Yangdachengzi oil layer.The studied petroleum mainly comes from Qing 1 member and partly from Qing 2+3 member mudstone of the Sanzhao Sag and the Chaoyanggou Bench,but not from Nen 1 member mudstone.Moreover,oil of the Sanzhao Sag and the Chaoyanggou Bench mainly comes from their Qing 1 member hydrocarbon source kitchen.Petroleum of the Changchunling Anticline Belt and the Wangfu Sag mainly comes from Qing 1 member hydrocarbon source kitchen in the Wangfu Sag.Qing 1 member hydrocarbon source kitchen of the Sanzhao Sag and the Chaoyanggou Bench also has partial contribution to petroleum in the Changchunling Anticline Belt.

国家自然科学基金委员会;中国石油化工股份有限公司联合研究基金项目(40739902)资助

https://doi.org/10.11781/sysydz200905506