CAJ | 학술논문

以钻井、测井、地震和分析测试资料为依据，利用砂体精细对比、地震属性综合分析等手段，对库东-轮台地区苏维依组（Ⅱ砂组）上倾尖灭型砂岩沉积相及储层特征进行了研究。目的层段为滨浅湖滩坝砂沉积，其岩性主要为棕褐色-褐灰色中-细粒岩屑长石砂岩，沉积构造以浪成交错层理、浪成波痕、生物扰动等为特征。储集空间类型以粒间孔为主，少量粒内溶孔、颗粒破裂缝，储层物性主要表现为低-特低孔-低渗型储层，排驱压力较高，孔喉半径较小，分选性一般，以细歪度为主，少量粗歪度，孔隙结构总体较差，但微裂缝对储层储集性能具有改造作用。研究区发育多个上倾尖灭性岩性圈闭，苏维依组岩性油气藏具有良好的油气勘探前景。
이찬정、측정、지진화분석측시자료위의거，이용사체정세대비、지진속성종합분석등수단，대고동-륜태지구소유의조（Ⅱ사조）상경첨멸형사암침적상급저층특정진행료연구。목적층단위빈천호탄패사침적，기암성주요위종갈색-갈회색중-세립암설장석사암，침적구조이랑성교착층리、랑성파흔、생물우동등위특정。저집공간류형이립간공위주，소량립내용공、과립파렬봉，저층물성주요표현위저-특저공-저삼형저층，배구압력교고，공후반경교소，분선성일반，이세왜도위주，소량조왜도，공극결구총체교차，단미렬봉대저층저집성능구유개조작용。연구구발육다개상경첨멸성암성권폐，소유의조암성유기장구유량호적유기감탐전경。
Based on drilling, logging, seismic and testing data, combined with sandstone comparison and seis-mic attribution technique, it was studied in this paper the sedimentary facies and reservoir features of the updip pinch-out sandstones in the sandstone team Ⅱ of the Suweiyi Formation in Kudong-Luntai area. The target for-mation, mainly of beach-bar facies, is consisted of brown-grey medium-or fine-grained lithic arkose, and is featured by wave-cross bedding, wave-generated ripple and bioturbation. The reservoir space comprises intergranular porosity, emposieu and fractures. In general, the reservoir is of low/ultra-low porosity and low permeability, high displacement pressure, small pore throat radius, general sorting, mainly fine skewness and partially coarse skewness. The pore structures are generally poor, but the microfractures improve reservoir storage capability. Several updip pinch-out lithologic traps have been found in the study area, showing good exploration potentials in the Suweiyi Formation.