天然气工业2001，Vol.21Issue(2)：13-16,4.
鄂尔多斯盆地庆阳以南三叠系延长组长5、长6、长7储层成岩作用
DIAGENESES OF THE RESERVOIRS CHANG-5，CHANG-6 AND CHANG-7 OF YANCHANG FORMATION OF TRIASSIC TO THE SOUTH OF QINGYANG IN E'ERDUOSI BASIN
摘要
Abstract
The Reservoirs Chang-5，Chang-6 and Chang-7 of YanchangFormation，Triassic，are the major oil and gas exploration target zones in the region． They were suffered a series of complex，abundant and obvious diageneses，such as corrosion，dolomitization，fragmentation zeolotization，compaction and cementation etc．Through research it is shown that the first four diageneses are beneficial to the growth of pores in this region，but the last two ones can cause the petrophysical property to be disadvantaged and the porosity to be declined． The Yanchang Formation reservoirs may be divided into a continuously buried diagenetic system and a medium opening diagenetic system． In this region，the well depths of 1 300～1 500 m and 1 700～1 900 m are the secondary pore growth intervals and the petrophysical condition and pore structure are controlled by sedimentary environment and diageneses．关键词
延长组/鄂尔多斯盆地/成岩作用/成岩模式分类
能源科技引用本文复制引用
牟泽辉..鄂尔多斯盆地庆阳以南三叠系延长组长5、长6、长7储层成岩作用[J].天然气工业,2001,21(2):13-16,4.基金项目
中石化新星石油公司研究项目《鄂尔多斯盆地南部油气勘探靶区选择》部分成果,参加工作的还有华北石油地质局李江涛、司建平等. （）
