塔河油田3区石炭系超深薄层碎屑岩储层预测研究
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摘要
针对塔河油田3区石炭系卡拉沙依组地震数据很难识别薄砂体的问题,对比分析了采用地震资料提频处理、分频处理、储层高分辨率敏感参数反演等不同手段得到的储层预测结果,筛选出高分辨率储层敏感参数反演作为卡拉沙依组砂泥岩段储层主要预测手段。通过探讨砂泥岩对声波时差的响应,以及对比分析自然电位、自然伽马以及补偿中子孔隙度与声波时差的关系,确定自然电位与声波时差的相关性最好,由此选取自然电位作为最佳电性敏感参数参与高分辨率敏感参数反演预测。从井点、剖面、平面等方面检验和评价高分辨率储层预测成果,结果表明其反演预测效果较好,符合塔河油田3区石炭系的储层预测要求,实现了对石炭系主力砂体空间展布的解释与描述,建立了塔河油田3区石炭系卡拉沙依组储层模型。
In order to improve the identification of thin sand body according to the seismic data of Carboniferous Kalashayi Formation in Block 3 of Tahe Oilfield,the reservoir forecasting results by the means of seismic data frequency extraction,frequency separation and high resolution sensitive parameter inversion were compared,and then high resolution sensitive parameter inversion was considered as the main forecasting method for sand body reservoir of Kalashayi Formation.The response of sandstone and mudstone to acoustic travel time was discussed,and the relationships of spontaneous potential,natural gamma and porosity compensated neutron log to acoustic travel time were studied;the results showed that the relativity between spontaneous potential and acoustic travel time was best,so spontaneous potential was selected as the optimal electrical sensitive parameter of high resolution sensitive parameter inversion.The results showed that the inversion results were good according to the evaluation on well point inversion,profile inversion and plane inversion,and could be used to forecast reservoir of Kalashayi Formation in Block 3 of Tahe Oilfield;the explanation and description of space distribution of Carboniferous sand body could be explained and described easier;the reservoir model of Carboniferous Kalashayi Formation in Block 3 of Tahe Oilfield was built.
In order to improve the identification of thin sand body according to the seismic data of Carboniferous Kalashayi Formation in Block 3 of Tahe Oilfield,the reservoir forecasting results by the means of seismic data frequency extraction,frequency separation and high resolution sensitive parameter inversion were compared,and then high resolution sensitive parameter inversion was considered as the main forecasting method for sand body reservoir of Kalashayi Formation.The response of sandstone and mudstone to acoustic travel time was discussed,and the relationships of spontaneous potential,natural gamma and porosity compensated neutron log to acoustic travel time were studied;the results showed that the relativity between spontaneous potential and acoustic travel time was best,so spontaneous potential was selected as the optimal electrical sensitive parameter of high resolution sensitive parameter inversion.The results showed that the inversion results were good according to the evaluation on well point inversion,profile inversion and plane inversion,and could be used to forecast reservoir of Kalashayi Formation in Block 3 of Tahe Oilfield;the explanation and description of space distribution of Carboniferous sand body could be explained and described easier;the reservoir model of Carboniferous Kalashayi Formation in Block 3 of Tahe Oilfield was built.
引文
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[19]陈宁宁,杨少春,黄建廷.胜坨油田沙河街组二段复杂断块油藏水淹层测井解释研究[J].地球科学与环境学报,2010,32(4):355-362.
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[2]刘蕊,盛海波,蔡玥,等.塔河油气田AT1区块凝析气藏三维地质建模研究[J].地球科学与环境学报,2011,33(2):168-171.
[3]付国民,周丽梅,刘蕊,等.塔河三叠系下油组河流相储层夹层成因类型及其分布规律[J].地球科学与环境学报,2009,31(3):260-264.
[4]马晓娟,张忠民,陈占坤.塔河南部志留系柯坪塔格组层序地层及沉积相[J].西南石油大学学报:自然科学版,2011,33(3):35-40.
[5]张荣军,李海军,任月玲.塔河油田深层稠油掺稀降黏技术[J].西安石油大学学报:自然科学版,2009,24(3):84-87.
[6]李斌,杨迎春,何玉萍,等.塔河油田卡拉沙依组地震沉积学研究与储层预测[J].现代地质,2009,23(6):1107-1112.
[7]尹成,王治国,雷小兰,等.地震相约束的多属性储层预测方法研究[J].西南石油大学学报:自然科学版,2010,32(5):173-180.
[8]何发岐,翟晓先,俞仁连,等.塔河油田石炭系卡拉沙依组沉积与成因分析[J].石油与天然气地质,2004,25(3):258-262.
[9]邵洪伟,马青,邓强,等.轮南地区石炭系砂泥岩段S3层储层特征与评价[J].地球科学与环境学报,2010,32(1):54-59.
[10]徐智,艾丽.塔北轮南古隆起石炭系砂泥岩段沉积相特征[J].西安石油大学学报:自然科学版,2011,26(2):31-38.
[11]邬兰,唐华佳,徐正华,等.轮古东地区石炭系东河砂岩段沉积相[J].西安石油大学学报:自然科学版,2010,25(2):23-26.
[12]王香文,于常青,董宁,等.储层综合预测技术在鄂尔多斯盆地定北区块的应用[J].石油物探,2006,45(3):267-271.
[13]Huang X R,Kelkar M G.Application of Combinatorial Algo-rithms for Description of Reservoir Properties[C]∥Society of Petroleum Engineers.SPE/DOE Improved Oil Recovery Sym-posium.Tulsa:Society of Petroleum Engineers,1994:20-36.
[14]赵永斌,武士尧,唐晓川.分频技术在大庆高台子油田扶扬油层储层预测中的应用[J].西安石油大学学报:自然科学版,2009,24(5):18-22.
[15]Huang X R,Kelkar M G.Seismic Inversion Using Heuristic Combinatorial Algorithm:a Hybrid Scheme[C]∥Society of Exploration Geophysicists.Proceedings of66th International SEG Annual Conference.Denver:Society of Exploration Geo-physicists,1996:119-125.
[16]朱定,孙素琴,蒋进勇.分频解释技术在塔河油田储层预测中的应用[J].石油与天然气地质,2010,31(1):49-53.
[17]王元君.塔河油田SD地区石炭系卡拉沙依组薄砂体预测[J].石油物探,2008,47(5):488-493.
[18]王智,许江文,谷斌.基于测井资料的低孔低渗储层产能预测研究[J].西南石油大学学报:自然科学版,2009,31(6):51-55.
[19]陈宁宁,杨少春,黄建廷.胜坨油田沙河街组二段复杂断块油藏水淹层测井解释研究[J].地球科学与环境学报,2010,32(4):355-362.
[20]陈守田,孟宪禄.薄互层储层预测方法[J].石油物探,2004,43(1):33-36.
[21]刘振华,成志刚,仵杰.高分辨率双侧向和双感应测井联合反演[J].西安石油大学学报:自然科学版,2010,25(6):23-27.
[22]沈华,尹微,徐佑平.提高砂岩油藏储层预测精度的方法[J].大庆石油地质与开发,2005,24(3):24-27.
[23]白斌,周立发,丁国栋,等.储层综合预测技术在太康地区上古生界的应用[J].石油物探,2007,46(3):261-266.
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