火成岩油藏地震精细描述技术研究

发布时间：2018-06-07 03:37

本文选题：火成岩油藏 + 岩相识别　；参考：《中国石油大学(华东)》2015年硕士论文

【摘要】：自从大规模勘探开采油气以来,对储层的研究就没有停歇过,沉积岩油气藏更是重中之重,但大家对发育在沉积盆地中的火成岩却没有重视。而现如今,对能源的消耗越来越大,火成岩油气藏正逐渐走入人们的视野。但由于火成岩埋藏深度深、地面无露头、测井资料缺乏、岩性种类储集空间类型多种多样等一系列原因,造成我们无法进行有效分析。这使火成岩的地震勘探成为世界级的难题,具有十分重要的理论研究价值。本文针对车排子地区火成岩的勘探现状进行了充分调研,阅读了大量本工区的相关科研报告及书籍,了解了其主要控藏因素:岩相、断裂与不整合面。针对控藏因素综合利用了地震属性技术、地震相分析技术、波形分类技术来进行了火成岩岩相分类及预测;运用了多尺度的相干体及蚂蚁体技术来进行了断裂带刻画描述;最后运用基于匹配追踪的时频分析方法对工区进行了吸收衰减属性的应用,并且对频率类属性进行了总结分析。研究表明:(1)井震结合地震相分析可以更加准确的对火成岩岩性岩相进行划分、明确了研究目标,对进一步的属性分析奠定了基础;而地震属性分析方法在地震解释中的也是一个关键性技术,由于火成岩不同岩相的响应特征差异,地震属性分析技术对于火成岩的预测也具有良好效果。(2)蚁群算法是近年来兴起的图像处理技术、并且被逐渐运用到断层识别当中,本文将小波多尺度分析应用在相干体技术与蚂蚁追踪技术当中,对大型的构造断层以及小断裂都有良好的识别效果,对工区火成岩的断裂带预测效果显著。(3)匹配追踪时频分析方法相比较传统方法具有不受Heisenberg测不准原理的限制,以及没有交叉项的优势,并且算法简洁;地震波在地下传播经过油气发育区域时,其能量会明显减弱、频率会发生降低,基于匹配追踪的高精度吸收衰减属性可以较为有效的对工区油气发育区域进行预测。
[Abstract]:Since the exploration and exploitation of oil and gas in large scale, the research on the reservoir has not stopped, and the sedimentary rock oil and gas reservoir is the most important, but everyone has not paid much attention to the igneous rock developed in the sedimentary basin. And now, the consumption of energy is increasing, and the igneous rock oil and gas reservoirs are gradually moving into the field of vision. This makes the seismic exploration of igneous rock become a world-class problem and has a very important theoretical research value. This paper has made an investigation on the current situation of the exploration of the igneous rock in the car platoon area. A large number of relevant research reports and books of the work area have been read, and the main controlling factors are found: lithofacies, fracture and unconformities. The seismic attribute technology, seismic phase analysis and waveform classification techniques are used to classify and predict the Yan Yan phase of the fire, and multiscale coherency bodies and ants are used. The fracture zone depiction and description are carried out by the body technology. At last, the application of the time frequency analysis method based on matching tracking is applied to the absorption and attenuation properties of the work area, and the frequency class attributes are summarized and analyzed. The study shows that: (1) Jing Zhen can be more accurate in dividing the lithologic facies of the igneous rock with the seismic facies analysis, and the research is clear. The aim is to lay the foundation for further attribute analysis, and seismic attribute analysis is also a key technique in seismic interpretation. Due to the difference of response characteristics of different lithofacies in igneous rock, seismic attribute analysis technology has good effect on the prediction of igneous rock. (2) ant colony algorithm is the image processing technique rising in recent years. In this paper, the wavelet multiscale analysis is applied to the coherent body technology and the ant tracking technology, which has good recognition effect on large tectonic faults and small faults. (3) the traditional method of matching and tracking time frequency analysis is compared with traditional methods. It has no restriction on the principle of Heisenberg uncertainty, as well as the advantage of no cross term, and the algorithm is simple. When seismic waves propagate through the oil and gas development area, the energy will decrease obviously, the frequency will decrease, and the high precision absorption and attenuation based on the matching tracing can be more effective for the area of oil and gas development in the industrial area. Forecast.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.4;P618.13

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