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文安斜坡南段巖性油氣藏儲(chǔ)層預(yù)測(cè)研究

發(fā)布時(shí)間:2018-05-19 19:07

  本文選題:文安斜坡 + 巖性油氣藏 ; 參考:《東北石油大學(xué)》2017年碩士論文


【摘要】:隨著華北油田進(jìn)入高成熟后期勘探開發(fā)階段,新發(fā)現(xiàn)油氣藏地質(zhì)條件趨于復(fù)雜化。迫切需要更先進(jìn)、更系統(tǒng)的研究方法和技術(shù)手段以應(yīng)對(duì)日趨加大的勘探開發(fā)難度。儲(chǔ)層預(yù)測(cè)技術(shù)在今后復(fù)雜油藏勘探中勢(shì)必成為一種必不可少的研究手段。在了解整個(gè)盆地的地質(zhì)背景的基礎(chǔ)上,確定大的沉積環(huán)境和構(gòu)造受力情況以及斜坡南段下第三系的主體沉積環(huán)境。以小層精細(xì)地震標(biāo)定為首要,開展外帶巖性體精細(xì)構(gòu)造解釋,落實(shí)巖性體的構(gòu)造形態(tài)特征。以高分辨率層序地層學(xué)為基礎(chǔ),充分利用地震、鉆井、測(cè)井資料建立等時(shí)層序地層格架。開展小層對(duì)比,落實(shí)油組層間分布特征及潛力分析。優(yōu)化地震屬性組合,選擇外帶巖性體敏感性地震屬性平面預(yù)測(cè)砂體展布特征。測(cè)井約束地震反演,預(yù)測(cè)縱向油組分布范圍。通過優(yōu)化子波,井震互動(dòng)標(biāo)定,準(zhǔn)確落實(shí)巖性體地震相應(yīng)特征;通過提頻及優(yōu)化地震屬性等手段,優(yōu)選振幅類預(yù)測(cè)薄層、薄互層砂體的儲(chǔ)層分布特征,并開展地震相分析,優(yōu)選有利相帶;通過優(yōu)選參數(shù),建立起砂泥巖阻抗范圍,得到自然電位、自然伽馬等多屬性體,準(zhǔn)確預(yù)測(cè)了砂體的縱橫向分布特征,刻畫了砂體的展布范圍;利用巖心觀察手段,結(jié)合測(cè)井曲線響應(yīng)特征,對(duì)南段沉積相進(jìn)行研究,并利用地震相和反演等結(jié)果,綜合預(yù)測(cè)有利砂體。落實(shí)了文安斜坡南段Ed3-Es3砂體的平面及縱向上的分布規(guī)律。
[Abstract]:As Huabei Oilfield enters the stage of high maturity and late exploration and development, the geological conditions of newly discovered oil and gas reservoirs tend to be complicated. More advanced and systematic research methods and techniques are urgently needed to cope with the increasing difficulty of exploration and development. Reservoir prediction technology is bound to become an indispensable research method in complex reservoir exploration in the future. On the basis of understanding the geological background of the whole basin, the large sedimentary environment and tectonic stress as well as the main sedimentary environment of the Lower Tertiary in the southern slope are determined. The fine structural interpretation of the outer lithologic body is carried out and the structural morphological characteristics of the lithologic body are realized. Based on high resolution sequence stratigraphy, the isochronous sequence stratigraphic framework is established by making full use of seismic, drilling and logging data. Carry out small layer correlation and carry out the analysis of the distribution characteristics and potential between the layers of the oil formation. To optimize the combination of seismic attributes and select the lithologic body sensitivity seismic attribute plane to predict the distribution characteristics of sand body. Logging constrained seismic inversion is used to predict the distribution range of longitudinal oil groups. By optimizing wavelet and seismic interaction calibration, the corresponding seismic characteristics of lithologic bodies can be accurately implemented. By means of increasing frequency and optimizing seismic attributes, the reservoir distribution characteristics of thin and thin interbedded sand bodies can be predicted by selecting amplitudes, and the seismic facies analysis will be carried out. The optimum selection of favorable facies zone, the establishment of the impedance range of sand and mudstone, the natural potential, natural gamma and other multi-attribute bodies, the accurate prediction of the longitudinal and horizontal distribution characteristics of sand bodies, and the delineation of the distribution range of sand bodies, through the optimal selection of parameters, the impedance range of sand and mudstone is established, and the natural potential and natural gamma are obtained. The sedimentary facies of the southern section are studied by means of core observation and logging curve response. The favorable sand bodies are comprehensively predicted by seismic facies and inversion. The horizontal and longitudinal distribution of Ed3-Es3 sand body in the south section of Wen'an Slope has been carried out.
【學(xué)位授予單位】:東北石油大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:P618.13

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