Diagenesis of Triassic Zhongyou Formation and its influence on physical properties in AT1 area, Tahe Oilfield

LIU Xiuchan; LIU Linyu; CHEN Xipan

doi:10.3969/j.issn.1673-8926.2011.01.004

Lithologic Reservoirs >

2011 , Vol. 23 >Issue 1: 34 - 38

DOI: https://doi.org/10.3969/j.issn.1673-8926.2011.01.004

Diagenesis of Triassic Zhongyou Formation and its influence on physical properties in AT1 area, Tahe Oilfield

LIU Xiuchan ,
LIU Linyu ,
CHEN Xipan

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1. Northwest Oilfield Company， Sinopec， Urumqi 830011， China； 2. College of Earth Science and Resources， Chang’an University， Xi’an 710054， China

Online published: 2011-02-20

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Abstract

Based on cast thin section, scanning electron microscope, electron microprobe and X- diffraction analysis, the diagenesis of Triassic Zhongyou Formation and its influence on physical properties in Tahe oilfield are studied. It is believed that Zhongyou Formation has lowcompositional maturity and textural maturity. The reservoir is mainly at late disgenesis stage A with complicated epidiagenesis. Compaction can reduce the porosity, while denudation is constructive to the increase of porosity.

Key words： Chang 6 reservoir; diagenesis; diagenetic facies; Shuangcheng oil region in Hengshan area; Ordos Basin

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LIU Xiuchan , LIU Linyu , CHEN Xipan . Diagenesis of Triassic Zhongyou Formation and its influence on physical properties in AT1 area, Tahe Oilfield[J]. Lithologic Reservoirs, 2011 , 23(1) : 34 -38 . DOI: 10.3969/j.issn.1673-8926.2011.01.004

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