本文選題：頁(yè)巖 + 人造巖心��； 參考：《石油學(xué)報(bào)》2017年05期

【摘要】：頁(yè)巖孔隙度是決定頁(yè)巖儲(chǔ)層含氣性的關(guān)鍵因素,對(duì)頁(yè)巖孔隙度進(jìn)行定量化表征是實(shí)現(xiàn)利用地震資料進(jìn)行孔隙度預(yù)測(cè)的前提條件,也是開(kāi)展頁(yè)巖氣評(píng)價(jià)的基礎(chǔ)。涪陵地區(qū)是中國(guó)頁(yè)巖氣勘探與開(kāi)發(fā)的重點(diǎn)區(qū)塊,以涪陵地區(qū)測(cè)井、測(cè)試資料為基礎(chǔ),探討利用測(cè)井資料預(yù)測(cè)孔隙度的方法�；谘芯繀^(qū)測(cè)試資料和測(cè)井資料,建立起孔隙度的測(cè)井識(shí)別及其響應(yīng)模型,研究區(qū)孔隙度與聲波時(shí)差A(yù)C具有很好的相關(guān)性,相關(guān)系數(shù)達(dá)到83.4%,以此確定了聲波時(shí)差作為孔隙度的地球物理響應(yīng)參數(shù)。隨后結(jié)合人造巖心的聲波等測(cè)試數(shù)據(jù),建立起單參數(shù)(孔隙度、礦物組分、圍壓、孔隙流體)影響的地層速度預(yù)測(cè)方程,通過(guò)分析單參數(shù)對(duì)地層速度的影響率,建立起單參數(shù)影響的孔隙度預(yù)測(cè)方程。結(jié)合涪陵地區(qū)A井的實(shí)測(cè)數(shù)據(jù),構(gòu)建起適合涪陵地區(qū)的孔隙度定量化表征方程。將涪陵地區(qū)B井的測(cè)井?dāng)?shù)據(jù)等代入方程,對(duì)方程進(jìn)行檢驗(yàn)。通過(guò)計(jì)算出的孔隙度與實(shí)測(cè)孔隙度進(jìn)行對(duì)比,發(fā)現(xiàn)計(jì)算的孔隙度與研究區(qū)實(shí)測(cè)孔隙度吻合度高,相關(guān)性好,孔隙度預(yù)測(cè)的結(jié)果與實(shí)際情況吻合。
[Abstract]:Shale porosity is the key factor to determine the gas content of shale reservoir. The quantitative characterization of shale porosity is the prerequisite for the prediction of shale porosity using seismic data, and is also the basis of shale gas evaluation. Fuling area is the key block of shale gas exploration and development in China. Based on the logging and testing data of Fuling area, the method of predicting porosity by logging data is discussed. Based on the test data and logging data of the study area, the logging identification and response model of porosity are established. The porosity of the studied area has a good correlation with the acoustic time difference (AC). The correlation coefficient is 83.4 and the geophysical response parameters of sonic moveout as porosity are determined. Then the prediction equation of formation velocity influenced by single parameter (porosity, mineral composition, confining pressure, pore fluid) is established by combining the acoustic wave test data of artificial core, and the influence rate of single parameter on formation velocity is analyzed. The porosity prediction equation affected by single parameter is established. Based on the measured data of well A in Fuling area, a quantitative characterization equation of porosity is established. The logging data of well B in Fuling area were substituted into the equation and the equation was tested. By comparing the calculated porosity with the measured porosity, it is found that the calculated porosity is in good agreement with the measured porosity in the study area, and the results of porosity prediction are in good agreement with the actual situation.
【作者單位】： 中國(guó)地質(zhì)大學(xué)資源學(xué)院;構(gòu)造和油氣資源教育部重點(diǎn)實(shí)驗(yàn)室;中國(guó)地質(zhì)調(diào)查局油氣資源調(diào)查中心;
【基金】：國(guó)家重大油氣專項(xiàng)子課題“頁(yè)巖氣區(qū)域選區(qū)評(píng)價(jià)方法研究”(2016ZX05034-002-003) 國(guó)家基礎(chǔ)地質(zhì)調(diào)查項(xiàng)目“南方頁(yè)巖氣綜合評(píng)價(jià)參數(shù)優(yōu)選及地球物理表征方法”(12120114055801) 111引智項(xiàng)目“沉積盆地動(dòng)力學(xué)與油氣富集機(jī)理”(B14031) 國(guó)家自然科學(xué)基金“頁(yè)巖氣儲(chǔ)層總孔隙度的定量化表征及預(yù)測(cè)”(No.41672134)資助
【分類號(hào)】：P618.13;P631.81

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