【摘要】：伊利諾伊盆地中包含有多層含油地層，是近一個(gè)世紀(jì)以來美國(guó)主要的油氣產(chǎn)區(qū)，但是由于開采年限較長(zhǎng)以及當(dāng)今社會(huì)對(duì)油氣資源需求激增，原有探明的存量明顯不能滿足新的要求，所以有必要對(duì)該產(chǎn)油區(qū)進(jìn)行進(jìn)一步的勘探。 本論文以某石油公司在伊利諾伊盆地的一條2D地震數(shù)據(jù)為基礎(chǔ)，詳盡的應(yīng)用相關(guān)地震數(shù)據(jù)處理方法，綜合解釋了地下賦存油氣的可能性。首先從地震剖面原始數(shù)據(jù)中可以看出，整個(gè)地震記錄中存在面波、聲波等干擾波，此外在203測(cè)道上有一個(gè)與震源位置相關(guān)的噪聲。這些噪聲的存在對(duì)地震數(shù)據(jù)的處理和解釋造成困難。通過對(duì)原始數(shù)據(jù)的分析處理，可以發(fā)現(xiàn)在結(jié)合FK濾波處理、速度分析與疊加以及迭代剩余靜校正以后，原始數(shù)據(jù)中由面波、聲波和固定震源產(chǎn)生的噪聲得到了有效的抑制，處理結(jié)果提高了地震剖面的成圖質(zhì)量。 此外，資料解釋過程中，結(jié)合伊利諾伊地質(zhì)調(diào)查局提供的測(cè)井?dāng)?shù)據(jù)使用了提取子波與測(cè)井?dāng)?shù)據(jù)生成人工合成地震記錄，，包括New Albany地層的底部，Maquoketa地層和Trenton地層的頂部的以及Knox地層的頂部。最后通過地震剖面以及AVO分析方法，發(fā)現(xiàn)地震波振幅在Trenton地層中存在著“反相位”特性與“亮點(diǎn)”異常。本論文探索一種確定地下油氣層的有效方式。
[Abstract]:The Illinois Basin contains many layers of oil-bearing strata, which are the major oil and gas producing areas in the United States for nearly a century. However, due to the long production years and the surge in demand for oil and gas resources in today's society, The original proven stock obviously can not meet the new requirements, so it is necessary to carry out further exploration in the oil-producing area. Based on a 2D seismic data of an oil company in the Illinois Basin, this paper comprehensively explains the possibility of underground oil and gas accumulation by using the relevant seismic data processing method. First, it can be seen from the original data of seismic profile that there are interference waves such as surface waves and sound waves in the whole seismic record, in addition, there is a noise related to the location of the earthquake source on the 203 track. The presence of these noises makes it difficult to process and interpret seismic data. Through the analysis and processing of the original data, it can be found that the noise generated by surface wave, acoustic wave and fixed source in the original data is effectively suppressed after the combination of FK filtering, velocity analysis and superposition, and iterative residual static correction. The processing results improve the mapping quality of seismic profiles. In addition, during the data interpretation process, combined with the logging data provided by the Illinois Geological Survey, extracted wavelet and logging data were used to generate synthetic seismic records, including the bottom of the New Albany formation. The top of the Maquoketa and Trenton formations and the top of the Knox formation. Finally, by means of seismic profile and AVO analysis, it is found that the amplitude of seismic wave has "inverse phase" characteristic and "bright spot" anomaly in Trenton formation. This paper explores an effective way to determine underground oil and gas reservoirs.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P631.44;P618.13

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