准噶尔盆地腹部达巴松地区层序地层与沉积体系研究  

Study on Sequence Stratigraphy and Depositional System in Dabasong Area in the Center of Junggar Basin

作　　者：康海亮[1] 于兴河[1] 李胜利[1] 王斌[1] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083

出　　处：《石油天然气学报》2008年第2期417-420,共4页Journal of Oil and Gas Technology

摘　　要：综合利用岩性、电性及地震等资料,建立了准噶尔盆地腹部达巴松地区侏罗系三工河组-白垩系清一段地层格架,并在等时层序地层格架内对重点层位地层发育特征及沉积体系展布进行了研究。研究认为,J-SQ3层序上升半旋回、K-SQ1层序主要发育辫状河三角洲前缘、浊积扇及湖相沉积。研究指出,达巴松凸起向凹陷的过渡地带,地层沉积具有多旋回性,可以形成较好的储盖组合,是岩性地层圈闭发育的有利地区;J-SQ3层序上升半旋回及K-SQ1层序内辫状三角洲前缘的滑塌浊积扇是下一步勘探重点。The strata of Sangonghe Formation of Jurassic to the Qingyi Member of Cretaceous in the central part of Junggar Basin were classified into five 3rd order sequences on the base of cores,well logging and seismic data,and strata comparative framework is setup,formation characteristics and depositional systems are studied in target horizons.The study indicates that braided delta front deposits,turbidite fan deposits and lake deposit are developed in the upgrading semi-cycle of J-SQ3 sequence and K-SQ1 sequence.The transition between Dabasong bulge and depression is the favorable place for lithostratigraphy traps because of cyclic deposition and favorable combination of reservoir and seal,the turbidite fans stemmed from slumping of braided delta front are the exploration targets in the upgrading semi-cycle of J-SQ3 sequence and K-SQ1 sequence.

关 键 词：达巴松凸起 层序地层 沉积体系 岩性圈闭 

分 类 号：P618.13[天文地球—矿床学]