Study on Key Parameters of Natural Gas Resource Assessment

LIU Cheng-lin; LIU Ren-he; LUO Xia; XIE Zeng-ye; LI Jian; ZENG Qing-meng

There are mainly 4 key parameters of natural gas resource evaluation, including gas production rate, migration-accumulation coefficient, play evaluation parameters, and recovery rate. First, gas production rate charts of biotic gas, coal, mudstone, and carbonate are built up through biotic gas simulation experiments and pyrolyses. Second, the relationship of migration-accumulation coefficient and different geologic parameters is K = 0. 298 - 0. 0025S + 0. 218C - 0. 00223T - 0. 00236D + 0. 0009H - 0. 2867V + 0. 000104R (K-migration-accumulation coefficient, S-age of source rock, C TOC, T-critical moment, D-thickness of Cap, H-depth of cap, N-times of unconformities, R-age of reservoir rock). Third, play evaluation parameter system and classification standards are built up based on lots of statistics. In the end, recovery rate of 5 types of natural gas reservoirs are analyzed and the results are: recovery rate of gas drive-clastic reservoirs is (75%-90%), water drive-clastic ones 50%-70%, gas drive-carbonate ones 80%-95%, water drive-carbonate ones 55%-80%, and tight ones 40%-55%.

Study on Key Parameters of Natural Gas Resource Assessment

1. University of Petroleum,Beijing 102249;

2. Langfang Branch of Research Institute of Petroleum Exploration and Development, CNPC,Langfang Hebei 065007

Received Date: 2003-11-20

Publish Date: 2004-12-10

Key words:

Abstract: There are mainly 4 key parameters of natural gas resource evaluation, including gas production rate, migration-accumulation coefficient, play evaluation parameters, and recovery rate. First, gas production rate charts of biotic gas, coal, mudstone, and carbonate are built up through biotic gas simulation experiments and pyrolyses. Second, the relationship of migration-accumulation coefficient and different geologic parameters is K = 0. 298 - 0. 0025S + 0. 218C - 0. 00223T - 0. 00236D + 0. 0009H - 0. 2867V + 0. 000104R (K-migration-accumulation coefficient, S-age of source rock, C TOC, T-critical moment, D-thickness of Cap, H-depth of cap, N-times of unconformities, R-age of reservoir rock). Third, play evaluation parameter system and classification standards are built up based on lots of statistics. In the end, recovery rate of 5 types of natural gas reservoirs are analyzed and the results are: recovery rate of gas drive-clastic reservoirs is (75%-90%), water drive-clastic ones 50%-70%, gas drive-carbonate ones 80%-95%, water drive-carbonate ones 55%-80%, and tight ones 40%-55%.

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Reference (9)

[1]	李明宅,张洪年. 生物气成藏规律研究. 天然气工业,1997,17(2):7～ 10
[2]	刘成林,蒋助生,李剑,等. 柴达木盆地一里坪地区上新统狮子沟组生物气成藏研究 . 天然气工业,2001,21(6):14～16
[3]	刘成林,姜桂凤,王金鹏,等. 柴达木盆地东部天然气资源潜力分析. 见:梁狄刚 ,黄第藩,马新华等. 有机地球化学研究新进展:第八届全国有机地球化学学术会议论文集 . 北京:石油工业出版社,2002.232～235
[4]	张文昭主编. 石油天然气储量管理. 北京:石油工业出版社,1999.1～150
[5]	杨通佑,范尚炯,陈元千,等. 石油及天然气储量计算. 北京:石油工业出版社, 1998.253～274
[6]	陈元千,袁自学. 预测油气田产量和可采储量的新模型. 见:全国资源委石油天然气储量委员会办公室编. 石油天然气资源管理论文集. 北京:石油工业出版社,1999. 1
[7]	刘雨芬,陈元千,毕海滨. 利用多元回归方法确定稠油油藏吞吐阶段的采收率. 北京:石油工业出版社,1999.111～114
[8]	陈元千,刘雨芬,毕海滨. 确定水驱砂岩油藏采收率的方法. 北京:石油工业出版社,1999.115～119
[9]	陈元千. 预测水驱凝析气藏可采储量的方法. 北京:石油工业出版社,1999.120～12

Study on Key Parameters of Natural Gas Resource Assessment

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