CAJ | 학술논문

坡折带近年来日益受到重视，它明显控制了上覆地层分布、岩性岩相变化和油气藏的分布。通过层序地层法恢复古地貌，在川中-川西过渡带识别大型地貌坡折带，川西地区晚三叠世接受其西部和东部两个方向的物源供给。在大量岩心观察、地震资料和测井资料研究基础上，认为在坡折带控制下，龙泉山断裂带以西须二、须四段发育砂质碎屑流重力流沉积，分析其基本特征和储集性能，最后指出砂质碎屑流储层物性总体优于川西地区南部其它类型砂体，是新型的勘探对象，具有一定的勘探潜力。
파절대근년래일익수도중시，타명현공제료상복지층분포、암성암상변화화유기장적분포。통과층서지층법회복고지모，재천중-천서과도대식별대형지모파절대，천서지구만삼첩세접수기서부화동부량개방향적물원공급。재대량암심관찰、지진자료화측정자료연구기출상，인위재파절대공제하，룡천산단렬대이서수이、수사단발육사질쇄설류중력류침적，분석기기본특정화저집성능，최후지출사질쇄설류저층물성총체우우천서지구남부기타류형사체，시신형적감탐대상，구유일정적감탐잠력。
Large-scale slope break is recognized in the central-west Sichuan transitional belt by means of sequence stratigraphical study. Under the control of the slope break, sandy debris flow and gravity flow deposits were developed in the Second and Fourth Members of the Xujiahe Formation to the west of the Longquanshan fracture zone. The reservoir property is prior to other sand bodies in west Sichuan.