辽河油田东部凹陷页岩气成藏条件及含气性评价

doi:10.7623/syxb201103011

石油学报 ›› 2011, Vol. 32 ›› Issue (3): 450-458.DOI: 10.7623/syxb201103011

辽河油田东部凹陷页岩气成藏条件及含气性评价

徐波 1 李敬含 2 李晓革 1 王传峰 1 刘凯波 1 徐美香 1 景佳骏 1 聂领 1

1中国石油冀东油田公司南堡油田采油作业区河北唐海 063200； 2中国石油辽河油田公司勘探开发研究院辽宁盘锦 124000

收稿日期:2010-09-03 修回日期:2010-11-03 出版日期:2011-05-25 发布日期:2011-07-19
通讯作者: 徐波
作者简介:徐波，男，1977年5月生， 2009年获中国地质大学（北京）矿产普查与勘探专业博士学位，现为中国石油冀东油田工程师，主要从事油田勘探、生产工作。
基金资助:
国家自然科学基金项目(No．40672087 和No．40472073)资助。

Evaluation of hydrocarbon accumulation conditions for shale gas from the Eastern Sag of the Liaohe Oilfield and its gasbearing properties

XU Bo 1 LI Jinghan 2 LI Xiaoge 1 WANG Chuanfeng 1 LIU Kaibo 1 XU Meixiang 1 JING Jiajun 1 NIE Ling 1

Received:2010-09-03 Revised:2010-11-03 Online:2011-05-25 Published:2011-07-19

摘要/Abstract

摘要：

通过类比国外页岩气盆地的页岩有机质类型、有机碳含量、热演化程度、厚度等指标，初步确定辽河油田东部凹陷存在发育页岩气藏的条件。页岩吸附气量实验研究表明，东部凹陷页岩吸附气量与暗色泥页岩有机碳含量和热演化程度呈正比关系，东部凹陷页岩吸附气量为0.2～1.2 m³/t，与加拿大Gordondale页岩和中国四川盆地下志留统龙马溪组页岩基本相当。利用气测全烃值，结合有机碳含量、热演化程度、含气页岩厚度等指标，对不同层系页岩含气性进行了整体评价。依据评价结果，指出驾掌寺—二界沟洼陷为东部凹陷内页岩气勘探的首选目标。

关键词: 辽河油田, 东部凹陷, 页岩气, 吸附气, 含气性, 气测全烃, 有利勘探区

Abstract:

In comparison with the organic matter type, organic carbon abundance, thermal maturity and thickness of source rocks in shale-gas-bearing basins abroad, the present paper preliminarily confirmed the conditions for shale-gas accumulation in the Eastern Sag of the Liaohe Oilfield. The experimental study on gas amounts absorbed by shales indicated that there existed a positive correlation between the absorbed gas amount and the TOC and thermal maturity of dark mud shales in the Eastern Sag, and its adsorbed gas amount was 0.2～1.2 m3/t，basically equal to that of the Gordondale shale in Canada and the Lower Silurian Longmaxi Formation shale of the Sichuan Basin. A comprehensive evaluation on gas-bearing properties of shales in various formations was made by using abnormal values from the total hydrocarbon by gas logging and being combined with other criteria, such as TOC, R_o, thickness of the corresponding shales, therefore, the most favorable block for shale-gas exploration within the Eastern Sag was targeted for the Erjiegou-Jiazhangsi area.

Key words: Liaohe Oilfield, Eastern Sag, shale gas, adsorbed gas, gas-bearing property, total hydrocarbon by gas logging, favorable exploration block

徐波李敬含李晓革王传峰刘凯波徐美香景佳骏聂领. 辽河油田东部凹陷页岩气成藏条件及含气性评价[J]. 石油学报, 2011, 32(3): 450-458.

XU Bo LI Jinghan LI Xiaoge WANG Chuanfeng LIU Kaibo XU Meixiang JING Jiajun. Evaluation of hydrocarbon accumulation conditions for shale gas from the Eastern Sag of the Liaohe Oilfield and its gasbearing properties[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(3): 450-458.

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辽河油田东部凹陷页岩气成藏条件及含气性评价

Evaluation of hydrocarbon accumulation conditions for shale gas from the Eastern Sag of the Liaohe Oilfield and its gasbearing properties

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