沉积与特提斯地质Issue(2)：8-15,8.
新疆克拉玛依油田一中区克拉玛依组辫状河储层砂体类型及分布特征
Types and distribution of the braided channel reservoir sandstones in the Karamay Formation in Quadrant 1 of the Karamay Oil Field,Xinjiang
摘要
Abstract
The integration of outcrop measurement,core observation and well logs show that the braided channel deposits were developed during the deposition of the S7 ,S5 and S4 sandstone measures in the Karamay Formation in Quadrant 1 of the Karamay Oil Field,Xinjiang,and may be classified into three types of proximal gravelly braided channel deposits,distal gravelly braided channel deposits and sandy braided channel deposits. Lithologically,the proximal gravelly braided channel deposits are mainly made up of conglomerates,with subordinate sandstones,and have medium-sized porosity and low permeability. A single channel has the sedimentary thickness varying from 2 to 4. 5 m and a width from 500 to 800 m,and displays the distribution patterns as the channel-channel associations. The distal gravelly braided channel deposits are the same as the proximal gravelly braided channel in lithology. A single channel has the sedimentary thickness varying from 1. 5 to 4 m and a width from 400 to 750 m,and constitutes the distribution patterns as the channel-overbank-channel associations. The sandy braided channel deposits are dominated by the sandstones and occur as medium-sized porosity and low-permeability reservoirs. A single channel has the sedimentary thickness varying from 0. 5 to 2. 5 m and a width from 300 to 700 m,and constitutes the distribution patterns as the banded or interbanded associations. The positive aspects of the gravelly braided channel sandstones are relatively thick reservoir sections, extensive and well-connected sandstone reservoirs,and thus may be considered as the main target for the petroleum exploration throughout the study area.关键词
辫状河/克拉玛依油田/一中区/克拉玛依组/砂体类型/分布特征Key words
braided channel deposit/Karamay Oil Field/Quadrant 1/Karamay Formation/sandstone type/distribution分类
能源科技引用本文复制引用
杨婷,金振奎,张雷,赵坤,刘安..新疆克拉玛依油田一中区克拉玛依组辫状河储层砂体类型及分布特征[J].沉积与特提斯地质,2015,(2):8-15,8.基金项目
国家“十一五”重点科技攻关项目 （）
