川西新场地区须二段沉积相标志的成像测井分析  

IMAGING LOGGING ANALYSIS ON SEDIMENTARY-FACIES MARKER OF XUJIAHE 2 MEMBER IN XINCHANG AREA,WESTERN SICHUAN BASIN

作　　者：李阳兵[1] 张筠[1] 徐炳高[1] 李德才[1] 何会[1] 

机构地区：[1]中国石化集团西南石油局测井公司

出　　处：《天然气勘探与开发》2012年第4期28-33,8-9,共6页Natural Gas Exploration and Development

摘　　要：利用川西新场地区常规测井、能谱测井、电成像测井及野外露头资料,对沉积环境、沉积构造、古水流方向进行了系统研究。认为须二段沉积环境为弱水动力条件下的还原环境;系统地利用电成像测井技术识别出了槽状交错层理、楔状交错层理、递变层理、冲刷面、变形层理等沉积构造;而且在交错层理识别的基础上,深化了古水流方向认识,认为须二段古水流方向具有由北向南的趋势,反映了物源来自北部。The sedimentary environment and structure,and paleocurrent direction in Xinchang area,western Sichuan Basin,are studied based on some data from conventional logging,spectrum logging,electric imaging logging and outcrop observation.It is considered that(1) the sedimentary environment of Xujiahe 2 Member is reduction one under weak hydrodynamic condition;(2) its sedimentary structures including trough-and wedge-shape cross bedding,graded bedding,surface of scour and distorted bedding can be identified by electric imaging logging;and(3) its paleocurrent direction,which is further recognized on the basis of the identification of cross bedding,is a trend from north to south,showing source from the north.

关 键 词：电成像测井 测井相 沉积构造 须家河组 川西地区 

分 类 号：P618.13[天文地球—矿床学]