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
60-64
,共5页
物源分析%ZTR指数%地层倾角%近源砾石%磨圆度
物源分析%ZTR指數%地層傾角%近源礫石%磨圓度
물원분석%ZTR지수%지층경각%근원력석%마원도
provenance analysis%ZTR indices%stratal dip%proximal gravel%roundness
春晖油田侏罗系八道湾组油层段为中砾岩、细砾岩及含砾砂岩构成的一套粗碎屑沉积，储层非均质性较强，物性与含油性密切相关。为了确定优势储层的发育方向与分布，利用重矿物法和地层倾角法对物源方向进行了研究。重矿物中ZTR指数自西北向东南方向由5增大至20以上，反映出沉积物的搬运方向为西北→东南。18口井的倾角矢量图中矢量点最多的方向也均指示为东南方向，最终确定物源为西北方向的哈拉阿拉特山，同时对近源砾石较高的磨圆度进行了分析。
春暉油田侏囉繫八道灣組油層段為中礫巖、細礫巖及含礫砂巖構成的一套粗碎屑沉積，儲層非均質性較彊，物性與含油性密切相關。為瞭確定優勢儲層的髮育方嚮與分佈，利用重礦物法和地層傾角法對物源方嚮進行瞭研究。重礦物中ZTR指數自西北嚮東南方嚮由5增大至20以上，反映齣沉積物的搬運方嚮為西北→東南。18口井的傾角矢量圖中矢量點最多的方嚮也均指示為東南方嚮，最終確定物源為西北方嚮的哈拉阿拉特山，同時對近源礫石較高的磨圓度進行瞭分析。
춘휘유전주라계팔도만조유층단위중력암、세력암급함력사암구성적일투조쇄설침적，저층비균질성교강，물성여함유성밀절상관。위료학정우세저층적발육방향여분포，이용중광물법화지층경각법대물원방향진행료연구。중광물중ZTR지수자서북향동남방향유5증대지20이상，반영출침적물적반운방향위서북→동남。18구정적경각시량도중시량점최다적방향야균지시위동남방향，최종학정물원위서북방향적합랍아랍특산，동시대근원력석교고적마원도진행료분석。
The oil reservoirs in the Jurassic Badaowan Formation in the Chunhui Oil Field, Junggar Basin are mainly built up of a succession of coarse-grained clastic deposits including medium- to fine-grained conglomerates and gravelly sandstones. In this study, the provenance analysis is based on the heavy mineral method and stratal dip logs to determine the orientation and distribution of the dominant reservoir rocks. The NW-SE-trending increase of ZTR indices in the heavy minerals shows a NW-SE-trending migration of sediments, as indicated by the dip logs for several wells and the roundness of the proximal gravels in the Badaowan Formation. It follows that the principal source of detritus lay to the Halaalate Mountain in the northwest.
