模型正演技术在塔河油田于奇地区的应用
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摘要
塔河油田于奇地区三叠系是重要的产油层,其中、上三叠统与下三叠统呈2个相反的"楔状体",沉积体系的空间配置关系复杂。加之该区储层类型多样,纵横向非均质性强,储层预测难度较大。综合利用地质、地震、测井、钻井等资料,建立符合实际地质条件的地震地质模型。参照实际的采集参数和观测系统设计,采用非均匀介质条件下导出的二维声波波动方程交错网格有限差分法进行模拟,总结出地震尖灭点与实际模型尖灭点的偏移距离关系,优选出与含油气性具有强相关性的地震属性,并成功应用到实际的地震地质解释和储层预测工作中,降低了油气勘探风险,取得了良好的效果。
Triassic stratum was an important pay zone in Yuqi Area of Tahe Oilfield,where the upper Triassic and lower Triassic strata were 2 opposite "wedge" type reservoirs,its depositional system was complicated in space.Moreover,the reservoir types were of varieties with strong heterogeneity in horizontal and vertical directions,it was difficult for reservoir prediction.Seismic geological model was established by using geological,seismic,well logging and drilling data according to the actual geological conditions.By referring the actual acquisition parameters and observing systems,2-dimensional acoustic wave equation staggered-grid finite differential method was used for simulation by using heterogeneity conditions.The relationship of offset distance between the pinch-out points of seism and actual model was summarized,seismic attributes associated with the hydrocarbon were selected.It is used in actual seismic interpretation and reservoir prediction for reducing the risk of oil and gas exploration,and good results are achieved.
Triassic stratum was an important pay zone in Yuqi Area of Tahe Oilfield,where the upper Triassic and lower Triassic strata were 2 opposite "wedge" type reservoirs,its depositional system was complicated in space.Moreover,the reservoir types were of varieties with strong heterogeneity in horizontal and vertical directions,it was difficult for reservoir prediction.Seismic geological model was established by using geological,seismic,well logging and drilling data according to the actual geological conditions.By referring the actual acquisition parameters and observing systems,2-dimensional acoustic wave equation staggered-grid finite differential method was used for simulation by using heterogeneity conditions.The relationship of offset distance between the pinch-out points of seism and actual model was summarized,seismic attributes associated with the hydrocarbon were selected.It is used in actual seismic interpretation and reservoir prediction for reducing the risk of oil and gas exploration,and good results are achieved.
引文
[1]丁勇,邱芳强,高玄.塔河油田三叠系油气藏特征及成藏规律[J].中国西部油气地质,2006,2(3):257~260.
[2]顾忆.塔里木盆地北部塔河油田油气藏成藏机制[J].石油实验地质,2000,22(4):307~312.
[3]漆立新.塔河油田深层碎屑岩非构造圈闭地震勘探技术[J].新疆石油地质,2009,30(4):515~518.
[4]李宗杰,石玉.塔河油田三叠系隐蔽圈闭识别与评价技术[J].中南大学学报(自然科学版),2006,37(1):65~73.
[5]石玉,李宗杰.塔河油田三叠系岩性圈闭识别与评价技术[J].新疆石油地质,2007,28(3):375~378.
[6]曹慧兰,靳文芳,王世星.塔河油田于奇地区三叠系层序地层研究及储层预测[A].李剑峰.油气地球物理实用新技术论文集:中国石化石油勘探开发研究院南京石油物探研究所2005年学术交流会论文集[C].北京:石油工业出版社,2005.22~27.
[7]张永刚.地震波场数值模拟方法[J].石油物探,2003,42(2):128~143.
[8]刘军迎,雍学善,高建虎,等.波动方程模型正演岩性油气藏波场研究[J].石油物探,2005,44(1):12~13.
[9]巩建强.正演模拟法在油气勘探中的应用[J].油气地球物理,2009,7(2):14~15.
[10]冯全东,刘传川,胡艳革,等.利用模型正演进行草湖凹陷东河砂岩尖灭线识别与预测[J].重庆科技学院学报(自然科学版),2005,7(2):9~11.
[11]苏朝光,闫昭岷,张营革,等.地层油藏超剥尖灭线夹角定量外推方法模型研究[J].地球物理学进展,2007,22(6):1841~1846.
[2]顾忆.塔里木盆地北部塔河油田油气藏成藏机制[J].石油实验地质,2000,22(4):307~312.
[3]漆立新.塔河油田深层碎屑岩非构造圈闭地震勘探技术[J].新疆石油地质,2009,30(4):515~518.
[4]李宗杰,石玉.塔河油田三叠系隐蔽圈闭识别与评价技术[J].中南大学学报(自然科学版),2006,37(1):65~73.
[5]石玉,李宗杰.塔河油田三叠系岩性圈闭识别与评价技术[J].新疆石油地质,2007,28(3):375~378.
[6]曹慧兰,靳文芳,王世星.塔河油田于奇地区三叠系层序地层研究及储层预测[A].李剑峰.油气地球物理实用新技术论文集:中国石化石油勘探开发研究院南京石油物探研究所2005年学术交流会论文集[C].北京:石油工业出版社,2005.22~27.
[7]张永刚.地震波场数值模拟方法[J].石油物探,2003,42(2):128~143.
[8]刘军迎,雍学善,高建虎,等.波动方程模型正演岩性油气藏波场研究[J].石油物探,2005,44(1):12~13.
[9]巩建强.正演模拟法在油气勘探中的应用[J].油气地球物理,2009,7(2):14~15.
[10]冯全东,刘传川,胡艳革,等.利用模型正演进行草湖凹陷东河砂岩尖灭线识别与预测[J].重庆科技学院学报(自然科学版),2005,7(2):9~11.
[11]苏朝光,闫昭岷,张营革,等.地层油藏超剥尖灭线夹角定量外推方法模型研究[J].地球物理学进展,2007,22(6):1841~1846.
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