成藏模式在岩性圈闭预测与评价中的应用——以GS地区为例
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摘要
成藏模式理论研究是目前研究的热点,但是用其指导油气勘探的研究较少,以GS地区岩性圈闭预测与评价为例,探讨成藏模式在油气勘探中的应用方法。从GS地区油气成藏模式上看,该油藏受构造、岩性双重控制,油层分布表现为构造高部位油层发育较好,低部位较差,层间和层内存在非均质性,背斜构造东南斜坡是油气运移的必经之路,配合有利砂岩储集体,就能形成构造和构造-岩性油气藏,在该思路指导下,对利用地震识别的岩性圈闭进行评价,研究结果表明,地震异常体位于油气运移路径上,并布置了一口探井,预测的岩性油气藏与钻井结果吻合,该方法取得了良好的应用效果。
After the transition of exploration stage from structural reservoirs to lithologic reservoirs,accumulation rules such as oil and gas generating conditions,distribution characteristics of reservoirs,migration direction,etc should be summarized.It is predicted that,in the main direction of oil and gas migration,areas where reservoirs are well developed are favorable for the accumulation lithologic traps.Under the guidance of this thought,lithologic traps identified by seismic data were evaluated in GS region,and a well was drilled.The result suggests that the predicted lithologic reservoir coincides with drilling one.Lithologic reservoirs evaluation under the guidance of oil-gas reservoir formation models improves the reliability of hydrocarbon accumulation conditions of lithologic traps.
After the transition of exploration stage from structural reservoirs to lithologic reservoirs,accumulation rules such as oil and gas generating conditions,distribution characteristics of reservoirs,migration direction,etc should be summarized.It is predicted that,in the main direction of oil and gas migration,areas where reservoirs are well developed are favorable for the accumulation lithologic traps.Under the guidance of this thought,lithologic traps identified by seismic data were evaluated in GS region,and a well was drilled.The result suggests that the predicted lithologic reservoir coincides with drilling one.Lithologic reservoirs evaluation under the guidance of oil-gas reservoir formation models improves the reliability of hydrocarbon accumulation conditions of lithologic traps.
引文
[1]吴冲龙,林忠民,毛小平,等.“油气成藏模式”的概念、研究现状和发展趋势[J].石油与天然气地质,2009,30(6):673-683.
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[6]赵斌,刘维永,黄江波,等.地震综合解释技术在渤海A油田开发中的应用[J].石油地质与工程,2010,24(5):80-83.
[7]杨占龙,郭精义,陈启林.地震信息多参数综合分析与岩性油气藏勘探——以JH盆地XN地区为例[J].天然气地球科学,2004,15(6):628-632.
[8]韩军,梁全胜,常迈,等.反演技术在低勘探程度区岩性油气藏勘探中的应用——以阜东斜坡带中上侏罗统为例[J].西安石油大学学报(自然科学版),2007,22(1):49-52.
[2]唐文旭,吴娟,胡玉杰.东濮凹陷成藏动力学系统划分及其意义[J].石油地质与工程,2008,22(5):1-4.38-39.
[3]冯伟光.民丰洼陷裂解气成藏模式研究[J].石油地质与工程,2008,22(4):33-35.
[4]贾承造,赵文智,邹才能,等.岩性地层油气藏地质理论与勘探技术[J].石油勘探与开发,2007,34(3):257272.
[5]贾承造,赵文智,邹才能,等.岩性地层油气藏勘探研究的两项核心技术[J].石油勘探与开发,2004,31(3):39.
[6]赵斌,刘维永,黄江波,等.地震综合解释技术在渤海A油田开发中的应用[J].石油地质与工程,2010,24(5):80-83.
[7]杨占龙,郭精义,陈启林.地震信息多参数综合分析与岩性油气藏勘探——以JH盆地XN地区为例[J].天然气地球科学,2004,15(6):628-632.
[8]韩军,梁全胜,常迈,等.反演技术在低勘探程度区岩性油气藏勘探中的应用——以阜东斜坡带中上侏罗统为例[J].西安石油大学学报(自然科学版),2007,22(1):49-52.
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