Earth Science Frontiers. 2014, (03) Core

Evaluation of conventional hydrocarbon resources in sedimentary basins of central Asia regionChinese Full Text

HOU Ping;TIAN Zuoji;ZHENG Junzhang;WANG Zhaoming;WU Yiping;Research Institute of Petroleum Exploration and Development,PetroChina;

Abstract: The central Asian region has a total of 18oil/gas fields discovered in a total of 11basins,including PreCaspian,Amu-Darya,Mangyshlak,North Caucasia,North Ustyurt,South Caspian,South Turgay,ChuSarysu,Fergana,Afghan-Tajik,and Zaysan,etc.Through so many years of exploration,it is interesting to know how many potential resources are left and where are they distributed in these 11basins.It is a main subject of this study.This paper uses USGS（2000）,IHS database,public domain literature,CNPC’s new project evaluation data and in-house research results for the accessed basins（blocks）to study the basic petroleum geologic conditions of these 11 basins,and classify them into 33 plays.By referring to the exploration degree of individual basins,the availability level of data and the applicability conditions of evaluation methods,we selected discovery process method and analogous method as the methods for evaluating hydrocarbon resources.Based on the analysis of the impacts of critical parameters on resources evaluation results,proper evaluation parameters are selected,the quantity of hydrocarbon resources of individual basins is calculated,and these are correlated and analyzed together with the USGS（2000）evaluation results.According to the estimate of USGS（2000）,the remaining recoverable hydrocarbon reserve equivalent in the 6basins of PreCaspian,Amu-Darya Mangyshlak,North Caucasia,North Ustyurt and South Caspian is 16.63billion tons.As of the end of 2008,the newly discovered recoverable hydrocarbon reserve equivalent was 6.47billion tons,therefore the remaining recoverable hydrocarbon reserve equivalent was 10.16billion tons,and the reserves re-evaluation results for the above six basins are basically consistent with the results of USGS evaluation.This paper has also evaluated the reserves in the rest 5basins which were not covered in the USGS（2000）evaluation.Our result indicates that the oil and gas reserve in the 11hydrocarbon-bearing basins in the greater Central Asia Region is abundant,but the distribution of these resources is extremely unbalanced.The remaining recoverable oil/gas reserve is mainly distributed in the three basins of Amu-Darya,PreCaspian and South Caspian.

Keywords：

Central Asia; resource evaluation; reserve; play; discovery process method;

DOI：
10.13745/j.esf.2014.03.007
Series：
Subject：
Classification Code：
P618.13

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Evaluation of conventional hydrocarbon resources in sedimentary basins of central Asia regionChinese Full Text

HOU Ping;TIAN Zuoji;ZHENG Junzhang;WANG Zhaoming;WU Yiping;Research Institute of Petroleum Exploration and Development,PetroChina;

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