海上多方位地震资料处理与储层预测方法研究
发布时间：2019-06-16 19:34
【摘要】：随着工业的发展,对能源的需求量越来越大,海上油气田勘探开发已走向精细化发展,低幅构造油气藏和岩性油气藏已经逐渐成为油气勘探的重点。窄方位角勘探面已经不能满足要求越来越高的精细化勘探任务。并且随着PC-CLUSTER集群的推广应用及网络交换速度的提高,地震资料的海量计算已经不再是制约三维地震资料处理的瓶颈,处理时间及成本已经大为缩减,为多方位角的地震资料处理及应用创造了客观条件。本研究以多方位地震资料为研究基础,形成了一套多方位地震资料处理及油气检测技术系列。(1)建立了一套新老不同采集参数地震资料的一致性处理技术体系,研发不同方位角的资料匹配及合并处理方法。多方位数据在速度谱的聚焦性好,通过利用多方位合并的数据,并参考单方位的数据,进行速度分析及准确速度建模,能够更好的建立起全区的速度,改善了资料成像和提高了信噪比,增强了小断层、裂隙的识别能力和预测地层岩性变化的能力,有利于寻找有利储层。为海上地震勘探的三维地震数据资料的采集及处理带来了一种新的思路,具有较强的推广应用价值。(2)通过P波方位各向异性裂缝检测,多尺度体曲率裂缝预测,非线性突变属性裂缝预测建立了多方位资料裂缝预测系列,多方位数据的属性结合了不同方位资料的优势,更能有效地揭示断裂和裂缝的发育特征,并说明了裂缝对裂缝孔隙所作出的贡献。(3)建立了多方位资料烃类检测技术系列,取得了刻画含气地质体的边界,圈定含气范围的突破;多方位数据的属性结合了不同方位资料的优势,更能揭示流体的富集区域,通过对多个方位资料反演结果的相互印证对比,极大地提高了预测的可靠性。(4)所形成的技术系列已经推广应用于中国南海和东海多个工区中,取得了很好的地质效果,进一步提高油气田勘探开发的成功率。总之,该方法技术与软件系统适应海上多种复杂构造的储层类型。研究成果结束国外公司的技术垄断,具有较高的科学价值与实用价值及推广应用前景
[Abstract]:With the development of industry, the demand for energy is increasing, the exploration and development of offshore oil and gas fields has moved towards fine development, and low amplitude structural reservoirs and lithologic reservoirs have gradually become the focus of oil and gas exploration. Narrow azimuth exploration surface can no longer meet the higher and higher requirements of fine exploration tasks. With the popularization and application of PC-CLUSTER cluster and the improvement of network exchange speed, the massive calculation of seismic data is no longer the bottleneck restricting 3D seismic data processing, and the processing time and cost have been greatly reduced, which creates objective conditions for multi-angle seismic data processing and application. Based on the research of multi-azimuth seismic data, a series of multi-azimuth seismic data processing and oil and gas detection techniques are formed. (1) A set of consistent processing technology system of new and old seismic data with different acquisition parameters is established, and the data matching and merging processing methods with different azimuth angles are developed. The focusing property of multi-azimuth data in velocity spectrum is good. By using the data of multi-directional merging and referring to unidirectional data, the velocity analysis and accurate velocity modeling can be carried out, the speed of the whole area can be better established, the data imaging and signal-to-noise ratio (SNR) can be improved, the identification ability of small faults and fissures and the ability of predicting formation lithology change can be enhanced, which is beneficial to finding favorable reservoirs. It brings a new idea for the acquisition and processing of 3D seismic data in offshore seismic exploration, and has strong popularization and application value. (2) through P wave azimuth anisotropy fracture detection, multi-scale volume curvature fracture prediction, nonlinear abrupt attribute fracture prediction, the fracture prediction series of multi-directional data is established, and the attributes of multi-directional data combine the advantages of different azimuth data. It is more effective to reveal the development characteristics of faults and fractures, and to explain the contribution of fractures to fracture pores. (3) A series of hydrocarbon detection techniques for multi-azimuth data are established, and the boundary of describing gas-bearing geological bodies and the breakthrough of the gas-bearing range are obtained. The attributes of multi-azimuth data combine the advantages of different azimuth data, and can better reveal the enrichment area of fluid. Through the mutual verification and comparison of inversion results of multiple azimuth data, the reliability of prediction is greatly improved. (4) the technical series formed has been popularized and applied to many working areas in the South China Sea and East China Sea, and has achieved good geological results and further improved the success rate of oil and gas field exploration and development. In a word, this method and software system are suitable for various reservoir types of complex structures at sea. The research results end the technology monopoly of foreign companies, and have high scientific value and practical value, as well as the prospect of popularization and application.
【学位授予单位】：成都理工大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：P618.13;P631.4
本文编号：2500789
[Abstract]:With the development of industry, the demand for energy is increasing, the exploration and development of offshore oil and gas fields has moved towards fine development, and low amplitude structural reservoirs and lithologic reservoirs have gradually become the focus of oil and gas exploration. Narrow azimuth exploration surface can no longer meet the higher and higher requirements of fine exploration tasks. With the popularization and application of PC-CLUSTER cluster and the improvement of network exchange speed, the massive calculation of seismic data is no longer the bottleneck restricting 3D seismic data processing, and the processing time and cost have been greatly reduced, which creates objective conditions for multi-angle seismic data processing and application. Based on the research of multi-azimuth seismic data, a series of multi-azimuth seismic data processing and oil and gas detection techniques are formed. (1) A set of consistent processing technology system of new and old seismic data with different acquisition parameters is established, and the data matching and merging processing methods with different azimuth angles are developed. The focusing property of multi-azimuth data in velocity spectrum is good. By using the data of multi-directional merging and referring to unidirectional data, the velocity analysis and accurate velocity modeling can be carried out, the speed of the whole area can be better established, the data imaging and signal-to-noise ratio (SNR) can be improved, the identification ability of small faults and fissures and the ability of predicting formation lithology change can be enhanced, which is beneficial to finding favorable reservoirs. It brings a new idea for the acquisition and processing of 3D seismic data in offshore seismic exploration, and has strong popularization and application value. (2) through P wave azimuth anisotropy fracture detection, multi-scale volume curvature fracture prediction, nonlinear abrupt attribute fracture prediction, the fracture prediction series of multi-directional data is established, and the attributes of multi-directional data combine the advantages of different azimuth data. It is more effective to reveal the development characteristics of faults and fractures, and to explain the contribution of fractures to fracture pores. (3) A series of hydrocarbon detection techniques for multi-azimuth data are established, and the boundary of describing gas-bearing geological bodies and the breakthrough of the gas-bearing range are obtained. The attributes of multi-azimuth data combine the advantages of different azimuth data, and can better reveal the enrichment area of fluid. Through the mutual verification and comparison of inversion results of multiple azimuth data, the reliability of prediction is greatly improved. (4) the technical series formed has been popularized and applied to many working areas in the South China Sea and East China Sea, and has achieved good geological results and further improved the success rate of oil and gas field exploration and development. In a word, this method and software system are suitable for various reservoir types of complex structures at sea. The research results end the technology monopoly of foreign companies, and have high scientific value and practical value, as well as the prospect of popularization and application.
【学位授予单位】：成都理工大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：P618.13;P631.4
【参考文献】
相关博士学位论文 前1条
1 吕晓春;面向目标照明与成像的海上多方位及宽方位观测系统的评价与优化[D];中国地质大学;2014年
，本文编号：2500789
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