准噶尔盆地达巴松凸起沉积模式及油气成藏条件  

Sedimentary model and hydrocarbon accmulation conditions of Dabasong uplift in Junggar Basin

作　　者：张军生 胡晨林 田继军 王小彩[2] 苗蒙 张喜淳 ZHANG Junsheng;HU Chenlin;TIAN Jijun;WANG Xiaocai;MIAO Meng;ZHANG Xichun(College of Geology and Mining Engineering,Xinjiang University,Urumqi 830046,China;Natural Gas Production and Marketing Plant,Zhongyuan Oilfield Company,SINOPEC,Puyang 457001,China;Research Institute of Geophysical Exploration,Jilin Oilfield Company,PetroChina,Songyuan 138000,China)

机构地区：[1]新疆大学地质与矿业工程学院,新疆乌鲁木齐830046 [2]中国石化中原油田分公司天然气产销厂,河南濮阳457001 [3]中国石油吉林油田分公司地球物理勘探研究院,吉林松原138000

出　　处：《断块油气田》2021年第5期631-635,共5页Fault-Block Oil & Gas Field

基　　金：国家自然科学基金项目“新疆急倾斜低煤阶储层火烧区水文地质特征及其对煤层气富集成藏的控制”(U1903303);新疆维吾尔自治区自然科学基金项目“塔里木盆地晚奥陶世古风向对礁滩沉积的控制作用”(2020D01C064);新疆大学科研启动项目“鄂尔多斯盆地奥陶纪古风向对礁滩沉积的控制作用”(BS190237)。

摘　　要：为了建立准噶尔盆地达巴松凸起三叠系百口泉组沉积模式,综合利用钻测井、岩心、化验分析等资料,对百口泉组的沉积背景和沉积特征进行了研究。结果表明:达巴松凸起三叠系百口泉组发育扇三角洲相和湖泊相沉积,具有物源充足、缓坡、水浅的沉积背景,扇三角洲前缘亚相为有利相带;水下分流河道微相发育,横向分布广泛,纵向多期叠置,河口坝微相局部发育;建立了研究区扇三角洲沉积模式。文中对研究区油气成藏条件进行了分析,认为百口泉组具备优质烃源岩、良好的储盖组合、立体网格式运移和良好的保存条件。研究成果可为达巴松凸起的后续勘探开发提供依据。In order to establish the sedimentary model of the Triassic Baikouquan Formation of Dabasong uplift in Junggar Basin,the sedimentation background and sedimentary characteristics of the Baikouquan Formation were studied by data of drilling,logging,core observation and laboratory analysis.The results show that fan delta and lacustrine facies deposition were developed in the Triassic Baikouquan Formation of Dabasong uplift,which had a sedimentary background with sufficient provenance,gentle slopes and shallow water.The fan delta front subfacies was the favorable facies belt;the subaqueous distributary channel developed,which are widely distributed horizontally and multi-stage superimposed vertically,with estuary dam microfacies locally deposited.The fan delta sedimentary model is established in the study area.Based on the analysis of hydrocarbon accumulation conditions,it is concluded that the Baikouquan Formation has high-quality source rocks,well-matched storage and cap combination,tridimensional network migration and good preservation conditions.The results can provide the basis for the subsequent exploration and development of Dabason uplift.

关 键 词：沉积特征 成藏条件 百口泉组 达巴松凸起 准噶尔盆地 

分 类 号：TE122.1[石油与天然气工程—油气勘探] P618.13[天文地球—矿床学]