胜科1井钻前地层压力预测
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摘要
胜科1井是中石化股份公司一口重点科学探索井,能否顺利实施将会影响到对东营凹陷深层油气藏的认识和勘探进程。该井钻探层位深、地层变化大,钻前异常地层压力预测尤为重要。在地震地质综合研究的基础上,确定了本区地层压力的概念模型,分析了地震速度与地层压力的关系,有效地提取了地震速度并正确地估算了上覆岩层压力。预测结果与开钻后的测试结果吻合较好。
Shengke-1 Well is a key well for scientific probe of Sinopec, and its proper implementation or not is related to the understanding of deep reservoirs and prospecting courses in Dongying sag. This well is characterized by deep drilling horizon and varied formation lithology, so its predrilling prediction of abnormal pressure is the most significant. This paper presents the conceptual model for the formation pressure in this area based on the seismic-geology researched results. By analysis of the seismic velocity vs. the formation pressure, the seismic velocity is effectively picked up, and overlying formaiton pressure is properly estimated. The predicted result is well comparable to the testing result.
Shengke-1 Well is a key well for scientific probe of Sinopec, and its proper implementation or not is related to the understanding of deep reservoirs and prospecting courses in Dongying sag. This well is characterized by deep drilling horizon and varied formation lithology, so its predrilling prediction of abnormal pressure is the most significant. This paper presents the conceptual model for the formation pressure in this area based on the seismic-geology researched results. By analysis of the seismic velocity vs. the formation pressure, the seismic velocity is effectively picked up, and overlying formaiton pressure is properly estimated. The predicted result is well comparable to the testing result.
引文
[1]张建宁,张兰,杨素花.济阳坳陷地层压力预测方法[A]//胜利油气地球物理技术论文集[C].北京:石油工业出版社,2003:161-166.
[2]张建宁.地震速度谱资料预测地层压力的陷阱分析[J].勘探地球物理进展,2005,28(1):53-56.
[3]郑和荣,黄永珀今,冯有良.东营凹陷下第三系地层异常高压体系及其石油地质意义[J].石油勘探与开发,2000,27(4):67-70.
[4]肖焕钦,刘震,赵阳,等.济阳坳陷地温-地压场特征及其石油地质意义[J].石油勘探与开发,2003,30(3):68-70.
[5]李熙哲,杨玉凤,郭小龙,等.渤海湾盆地压力特征及超压带形成的控制因素[J].石油与天然气地质,1997,18(3):236-241.
[6]黄海平,马刊创,王国庆,等.异常流体高压研究现状与展望[J].江汉石油学院学报,2000,22(3):45-47
[7]戈盾.地层压力的地震预测[J].石油地震地质,1992,4(1):65-85.
[8]陆基孟.地震勘探原理(上册)[M].山东东营:石油大学出版社,1990:189-222.
[2]张建宁.地震速度谱资料预测地层压力的陷阱分析[J].勘探地球物理进展,2005,28(1):53-56.
[3]郑和荣,黄永珀今,冯有良.东营凹陷下第三系地层异常高压体系及其石油地质意义[J].石油勘探与开发,2000,27(4):67-70.
[4]肖焕钦,刘震,赵阳,等.济阳坳陷地温-地压场特征及其石油地质意义[J].石油勘探与开发,2003,30(3):68-70.
[5]李熙哲,杨玉凤,郭小龙,等.渤海湾盆地压力特征及超压带形成的控制因素[J].石油与天然气地质,1997,18(3):236-241.
[6]黄海平,马刊创,王国庆,等.异常流体高压研究现状与展望[J].江汉石油学院学报,2000,22(3):45-47
[7]戈盾.地层压力的地震预测[J].石油地震地质,1992,4(1):65-85.
[8]陆基孟.地震勘探原理(上册)[M].山东东营:石油大学出版社,1990:189-222.
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