四川盆地南部栖霞组裂缝与溶蚀孔洞型天然气储层预测
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摘要
碳酸盐岩气藏在四川盆地天然气勘探中占有重要的位置,但是对栖霞组的研究还没有得到足够的重视。裂缝和溶蚀孔洞是栖霞组的最主要的储集空间,可靠的预测裂缝和溶蚀孔洞发育带是能否有效勘探开发该类型油气藏的重要因素。文章在综合分析测井地震资料的基础上,对研究区内储层波形进行对比和平面分布刻画,同时利用相干属性和叠前各向异性检测对裂缝和溶蚀孔洞进行预测,提出了勘探有利区域并总结储层发育模式,为栖霞组气藏进一步的勘探提供了理论支持。
Carbonate gas reservoir is a main exploration target for gas in Sichuan basin,but Qixia formation carbonate is neglected. Its fractures and dissolution pores are the major reservoir for gas. A reliable forecast of its fractures and dissolution pores is key to the exploration. This paper,based on logging and seismic data,compares the reservoir waveforms and distribution,uses coherent attributes and pre-overlapping anisotropy check to forecast Qixia formation fractures and dissolution pores,and presents exploration targets based on reservoir development model,offering theoretical support for further gas exploration in Qixia formation.
Carbonate gas reservoir is a main exploration target for gas in Sichuan basin,but Qixia formation carbonate is neglected. Its fractures and dissolution pores are the major reservoir for gas. A reliable forecast of its fractures and dissolution pores is key to the exploration. This paper,based on logging and seismic data,compares the reservoir waveforms and distribution,uses coherent attributes and pre-overlapping anisotropy check to forecast Qixia formation fractures and dissolution pores,and presents exploration targets based on reservoir development model,offering theoretical support for further gas exploration in Qixia formation.
引文
[1]戴金星,夏新宇,卫延召,等.四川盆地天然气的碳同位素特征[J].石油实验地质,2001,23(2):115-121
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[4]刘全有,金之均,高波,等.四川盆地二叠系烃源岩类型与生烃潜力[J].石油与天然气地质,2012,33(1):10-18
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[7]赵文革,陆正元,向阳.四川盆地下二叠统碳酸盐岩气藏储渗空间研究[J].大庆石油地质与开发,2006,25(5):9-12
[8]Rǜger A.Variation of P-wave reflectivity with offset and azimuth in anisotropic media[J].Geophysics,1998,63(3):935-947
[9]叶勇.地震多参数信息融合技术在鲕滩储层预测中的应用[C]//北京:中国地球物理学会第二十届年会论文集,2004
[10]王连刚,李俊乾.地震技术在煤层气储层研究与物性预测中的应用[J].资源与产业,2010,12(2):158-162
[2]刘德良,宋岩,薛爱民,等.四川盆地构造与天然气聚集区带综合研究[M].北京:石油工业出版社,2000
[3]李其荣,杜本强,隆辉,等.蜀南地区天然气地质特征及勘探方向[J].天然气工业,2009,29(10):21-27
[4]刘全有,金之均,高波,等.四川盆地二叠系烃源岩类型与生烃潜力[J].石油与天然气地质,2012,33(1):10-18
[5]陈宗清.论四川盆地中二叠统栖霞组天然气勘探[J].天然气地球科学,2009,20(3):325-334
[6]徐世琦,周建文,曾庆,等.龙门山北段二叠系栖霞组二段白云岩储层特征[J].天然气工业,2005,25(S1):59-61
[7]赵文革,陆正元,向阳.四川盆地下二叠统碳酸盐岩气藏储渗空间研究[J].大庆石油地质与开发,2006,25(5):9-12
[8]Rǜger A.Variation of P-wave reflectivity with offset and azimuth in anisotropic media[J].Geophysics,1998,63(3):935-947
[9]叶勇.地震多参数信息融合技术在鲕滩储层预测中的应用[C]//北京:中国地球物理学会第二十届年会论文集,2004
[10]王连刚,李俊乾.地震技术在煤层气储层研究与物性预测中的应用[J].资源与产业,2010,12(2):158-162
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