Fine stratigraphic classification and correlation of Chang 3 reservoir of Yanchang Formation in Zhenbei Oilfield

HAN Chunyuan; ZHAO Xianzheng; JIN Fengming; WANG Quan; LI Xianping; WANG Suqing

doi:10.3969/j.issn.1673-8926.2007.04.014

Lithologic Reservoirs >

2007 , Vol. 19 >Issue 4: 82 - 86

DOI: https://doi.org/10.3969/j.issn.1673-8926.2007.04.014

Fine stratigraphic classification and correlation of Chang 3 reservoir of Yanchang Formation in Zhenbei Oilfield

HAN Chunyuan ,
ZHAO Xianzheng ,
JIN Fengming ,
WANG Quan ,
LI Xianping ,
WANG Suqing

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1. No. 2 Oil Production Plant, Changqing Oilfield Company, PetroChina, Changqing 745100, China;
2. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company,PetroChina, Changqing 710021, China

Online published: 2007-12-15

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Abstract

Based on well logs and core data, the characteristics of the rock-electric property of more than 100 wells are analyzed. The fine stratigraphic classification and correlation of Chang 3 reservoir in Zhenbei Oilfield are carried out. From top to bottom, Chang 3 can be divided into Chang 3₁¹, Chang 3₁², Chang 3₁³, Chang 3₂¹, Chang 3₂², Chang 3₂³, Chang 3₃¹, Chang 3₃² and Chang 3₃³. Among them, Chang 3₂² and Chang 3₃¹ are underwater distributary channel deposits, and with sand bodies developed well, they become the dominated reservoirs in the study area. The fine classification and correlation can provide geologic basic data for the study on sedimentary microfacies, sand body distribution, reservoir heterogeneity and favorable target prediction, which takes a significant part in the oilfield development.

Key words： stratigraphic-lithologic reservoirs; exploration; Bayindulan Sag; Wuliyasitai Sag; Jiergalangtu Sag; Saihantala Sag

Cite this article

HAN Chunyuan , ZHAO Xianzheng , JIN Fengming , WANG Quan , LI Xianping , WANG Suqing . Fine stratigraphic classification and correlation of Chang 3 reservoir of Yanchang Formation in Zhenbei Oilfield[J]. Lithologic Reservoirs, 2007 , 19(4) : 82 -86 . DOI: 10.3969/j.issn.1673-8926.2007.04.014

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