CO_2气综合勘探技术及实例分析
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摘要
CO2气藏由于其物理、化学性质的特殊性,CO2气勘探与烃类气既有相同又有区别,综合应用多种资料和多种技术方法是勘探CO2气(层)藏的有效手段。通过运用色谱测量法和红外线CO2气体浓度测量法实现CO2气层钻井现场动态检测,利用气体色谱检测、相关录井参数资料、核测井密度中子孔隙度差值综合解释CO2气层,有效地区分烃类气和CO2气,分析地震亮点、AVO特征和地表化探异常与CO2气藏的关系,运用地震亮点、AVO、叠后滤波处理、约束反演技术和地球化学识别技术,有效地识别和预测CO2气分布。总结形成了CO2气藏的录井、测井、地震和地球化学综合勘探技术方法,该项技术在花沟地区CO2气藏的勘探中取得了很好应用效果。
There are some has some similarities and differences between the CO2 and the hydrocarbon exploration as the CO2 pool has some particular physical and chemical properties, it is an effective means to explore the CO2 pool by using mul- ti-data and multi-techniques. CO2 formations are detected dynamically on drilling site by color spectrum measurement and infrared ray CO2 concentration measure- ment. The CO2 formation are interpreted comprehensively, the CO2 is distinguished from the hydrocarbon, seismic bright point and AVO characteristic are analyzed, and the relation between the surface chemical exploration abnormal and the CO2 pool is found out by gas color spectrum detection, rela- tive well logging parameter data and nuclear log density neu- tron porosity differences. The CO2 identification and predic- tion can be done by seismic bright point, AVO, poststack fil- tering, constrained inversion and geochemistry integrated ex- ploration. The well logging, seismic and chemical integrated exploration techniques for CO2 are developed, and a good re- sult has been obtained in the application in CO2 formation ex- ploration in Huagou area.
There are some has some similarities and differences between the CO2 and the hydrocarbon exploration as the CO2 pool has some particular physical and chemical properties, it is an effective means to explore the CO2 pool by using mul- ti-data and multi-techniques. CO2 formations are detected dynamically on drilling site by color spectrum measurement and infrared ray CO2 concentration measure- ment. The CO2 formation are interpreted comprehensively, the CO2 is distinguished from the hydrocarbon, seismic bright point and AVO characteristic are analyzed, and the relation between the surface chemical exploration abnormal and the CO2 pool is found out by gas color spectrum detection, rela- tive well logging parameter data and nuclear log density neu- tron porosity differences. The CO2 identification and predic- tion can be done by seismic bright point, AVO, poststack fil- tering, constrained inversion and geochemistry integrated ex- ploration. The well logging, seismic and chemical integrated exploration techniques for CO2 are developed, and a good re- sult has been obtained in the application in CO2 formation ex- ploration in Huagou area.
引文
[1]郭栋,姚书振,陈红汉等.阳信洼陷火成岩与CO2气成藏关系.地质科技情报,2004,23(4):71~75
[2]彭晓波,陈建渝,曹忠祥等.胜利油田花沟气田非烃类气体成因研究.地质科技情报,2003,22(1):79~82
[3]郭栋,李红梅,程军等.利用化探精查技术检测二氧化碳气藏.物探与化探,2005,29(3):205~208
[4]刘伟,程军,杨云岭.寻找CO2气藏的地球化学方法.天然气地球科学.2004,15(4):432~435
[5]宋庆彬,汪德刚,陈玉新等.气测录井定量快速色谱分析技术.录井技术,2003,14(4):24~28
[6]孟祥水,张晋言,孙波.利用测井视孔隙度差异识别二氧化碳和烃类气.测井技术,2003,27(2):132~135
[2]彭晓波,陈建渝,曹忠祥等.胜利油田花沟气田非烃类气体成因研究.地质科技情报,2003,22(1):79~82
[3]郭栋,李红梅,程军等.利用化探精查技术检测二氧化碳气藏.物探与化探,2005,29(3):205~208
[4]刘伟,程军,杨云岭.寻找CO2气藏的地球化学方法.天然气地球科学.2004,15(4):432~435
[5]宋庆彬,汪德刚,陈玉新等.气测录井定量快速色谱分析技术.录井技术,2003,14(4):24~28
[6]孟祥水,张晋言,孙波.利用测井视孔隙度差异识别二氧化碳和烃类气.测井技术,2003,27(2):132~135
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