论文部分内容阅读
叠前地震裂缝检测技术是目前裂缝型储层定量描述的主要手段之一,利用地质、测井资料和岩石物理参数,根据岩石物理理论建立裂缝储层的理论地质模型,模拟地震波在已知裂缝模型中传播时各个方位的地震响应,分析某区段由裂缝引起的地震振幅属性的方位AVO(AVAZ)特征,利用该技术流程,编写了一套基于HTI介质的正演模拟软件,在软件开发过程中,研发了基于Qt Concurrent编程模型组件的并行处理技术.通过该项技术的研究与开发可以:1)利用地震属性数据实时分析地下裂缝型储层的地震响应规律;2)解决地震振幅数据方位各向异性特征的不确定性导致的各向异性椭圆解释成果错误问题,确定椭圆的正确方位指示;3)为叠前裂缝检测软件提供正演分析工具,完善并扩充检测流程.在实际生产应用的效果表明,正演的解释结论能够为叠前裂缝检测提供有效的理论依据,增强了反演裂缝方位数据的准确性与可信度.
Prestack seismic fracture detection technique is one of the main methods for quantitative description of fractured reservoirs. Based on the geophysical theory of rock, the theoretical and geological models of fractured reservoirs are established by using the data of geology, well logging and petrophysics. Simulating seismic waves in known fractures The azimuth AVO (AVAZ) feature of the seismic amplitude attribute caused by the crack in a certain section is analyzed. Based on the technical process, a set of forward modeling software based on HTI media is compiled. In the software development In the process, the parallel processing technology based on Qt Concurrent programming model components has been developed.The research and development of this technology can: 1) Analyze the seismic response law of underground fractured reservoirs in real time using seismic attribute data; 2) The anisotropy ellipse caused by the uncertainty of the azimuth anisotropy explains the problem of the wrong result and the correct azimuth direction of the ellipse is determined; 3) The forward analysis tool for the prestack crack detection software is provided to perfect and expand the testing process.In actual production The application results show that the forward interpretation conclusion can provide an effective theoretical basis for prestack fracture detection and enhance Accuracy and reliability of speech fracture azimuth data.