沉积与特提斯地质
沉積與特提斯地質
침적여특제사지질
SEDIMENTARY GEOLOGY AND TETHYAN GEOLOGY
2014年
2期
98-103
,共6页
黄龙组%白云岩%储层物性%成岩作用%沉积相
黃龍組%白雲巖%儲層物性%成巖作用%沉積相
황룡조%백운암%저층물성%성암작용%침적상
Huanglong Formation%dolostone%physical property%diagenesis%sedimentary facies
根据钻井岩心、薄片、物性等数据资料，对四川盆地东部马槽坝-黑楼门地区白云岩储层特征进行分析，并探讨沉积相及成岩作用对储层形成的控制作用。研究区白云岩储层的岩石类型主要为颗粒白云岩、微晶白云岩、粉-细晶白云岩。储集空间以次生粒间及粒内溶孔为主，并伴生有超大溶孔。研究区黄龙组储层总体上属于低孔低渗储层，以小孔-中细喉组合为主。白云石化作用、重结晶作用、破裂作用、古岩溶作用是有利于储层发育的成岩作用，其中白云石化作用是最普遍也是最重要的成岩作用。粒屑浅滩、潮道是有利于储层发育的沉积环境。
根據鑽井巖心、薄片、物性等數據資料，對四川盆地東部馬槽壩-黑樓門地區白雲巖儲層特徵進行分析，併探討沉積相及成巖作用對儲層形成的控製作用。研究區白雲巖儲層的巖石類型主要為顆粒白雲巖、微晶白雲巖、粉-細晶白雲巖。儲集空間以次生粒間及粒內溶孔為主，併伴生有超大溶孔。研究區黃龍組儲層總體上屬于低孔低滲儲層，以小孔-中細喉組閤為主。白雲石化作用、重結晶作用、破裂作用、古巖溶作用是有利于儲層髮育的成巖作用，其中白雲石化作用是最普遍也是最重要的成巖作用。粒屑淺灘、潮道是有利于儲層髮育的沉積環境。
근거찬정암심、박편、물성등수거자료，대사천분지동부마조패-흑루문지구백운암저층특정진행분석，병탐토침적상급성암작용대저층형성적공제작용。연구구백운암저층적암석류형주요위과립백운암、미정백운암、분-세정백운암。저집공간이차생립간급립내용공위주，병반생유초대용공。연구구황룡조저층총체상속우저공저삼저층，이소공-중세후조합위주。백운석화작용、중결정작용、파렬작용、고암용작용시유리우저층발육적성암작용，기중백운석화작용시최보편야시최중요적성암작용。립설천탄、조도시유리우저층발육적침적배경。
The present paper deals, on the basis of cores, thin sections and physical properties, with the types and controls of sedimentary facies and diagenesis on the dolostone reservoirs from the Huanglong Formation in the Macaoba-Heiloumen region, eastern Sichuan Basin. The dolostone types are composed of grainy dolostone, micritic dolostone, silty to fine-grained dolostone. The reservoir spaces consist of dominant secondary intergranular and intragranular solution openings and associated superlarge solution openings. The dolostone reservoirs from the Huanglong Formation generally belong to the low-porosity and low-permeability reservoirs with micropores and moderate-fine pore throats. The diagenesis favourable for the development of the dolostone reservoirs includes dolomitization, recrystallization, cataclasis and palaeokarstification, of which the dolomitization is wide-spread and most important diagenesis. The shoals and tidal channels are interpreted as the favourable sedimentary environments for the development of the dolostone reservoirs in the study area.
