4 . according to lithochemistry properties of volcanics , starting with logging evaluation mechanism , a method of identifying lithology by radioactive logging is set up ; on basis of core analysis data , log response of reservoir petrophysical properties is analyzed , thus providing basis for evaluating reservoir using logging data ; on basis of testing data , combining with log imaging around wells , comprehensive classification criteria of volcanic reservoirs and porosity interpretation model are established . 5 4 ,根據(jù)火山巖巖石化學(xué)特點(diǎn),從測井評(píng)價(jià)機(jī)理出發(fā),建立了利用放射性測井資料識(shí)別巖性的方法;以巖心分析資料為基礎(chǔ),分析了儲(chǔ)層物性的測井響應(yīng)特征,為利用測井資料評(píng)價(jià)儲(chǔ)層奠定了基礎(chǔ);以測試資料為依據(jù),綜合井周成像測井資料,建立了火山巖儲(chǔ)層的綜合劃分標(biāo)準(zhǔn)及孔隙度解釋模型。
There have been many questions about the petroleum pool formation conditions and models for this area since the first well was drilled in 1988 , which has had an great influence on the further petroleum exploration and development . in this study , a method with the combination of petroleum geology , sequence stratigrapy , organic geochemistry and geophysics , based on drilled core analysis data , well data and seismic sections , has been applied to investigate the petroleum pool formation conditions and models in this area , and the following results and recognition have been obtained : ( 1 ) . the lower tertiary strata are subdivided into two sequences and seven systems 本研究以鉆井取心分析資料、測井?dāng)?shù)據(jù)、地震資料為基礎(chǔ),綜合利用沉積學(xué)、層序地層學(xué)、石油地質(zhì)學(xué)、地球物理學(xué)、有機(jī)地球化學(xué)等多門學(xué)科的有關(guān)理論和研究方法,通過對(duì)埕島東斜坡區(qū)油氣藏形成條件和模式研究,主要取得了以下幾個(gè)方面成果和認(rèn)識(shí): ( 1 )埕島東斜坡地區(qū)下第三系共劃分兩個(gè)層序、七個(gè)體系域,其中沙一段至東三段中下部沉積為層序,東三段上部至東一段為層序。
On the basis of the integrated application of well logging , mud logging information and core analysis data , and using the method from the microcosm to the macrocosm analysis , this paper has studied the sedimentary characteristics of the sandstone oil bearing of the gaotaizi reservoir in the north part of the daqing placantieline , the program of automatic identification sedimentary microfacies with two different methods has been compiled 綜合利用測井、地質(zhì)錄井、巖芯分析數(shù)據(jù)等各種地質(zhì)資料,采用宏觀研究與微觀分析相結(jié)合的方法,對(duì)長垣北部高臺(tái)子油層砂巖儲(chǔ)集層,進(jìn)行了沉積特征研究,用兩種不同方法研制了沉積微相自動(dòng)識(shí)別程序。
According to the abundance well logging , mud logging and core analysis data , gaotaizi reservoir has been classified into four sand group with the principle of cycle comparison and classified control . based on the detailed study of lithologic character , sedimentary structure , paleontologic fossils , depositional sequence , rock association and logging data , the microfacies of the studied area are divided into such seven types : subaqueous distributary channel microfacies ; river mouth bar microfacies ; subaqueous interdistributary channel microfacies ; subaqueous crevasse channel microfacies ; subaqueous natural barrier microfacies ; distal bar microfacies ; delta front sheet sand microfacies . the characteristic of each sedimentary microfacies are described detailedly 通過研究大量測井、錄井資料和巖芯資料,依據(jù)“旋回對(duì)比,分級(jí)控制”的原則,把研究區(qū)高臺(tái)子油層劃分為g 、 g 、 g 、 g四個(gè)砂層組。通過對(duì)研究區(qū)巖性、沉積構(gòu)造、古生物、沉積序列、巖石組合及測井曲線特征進(jìn)行研究的基礎(chǔ)上,認(rèn)為研究區(qū)高臺(tái)子油層屬于三角洲前緣亞相沉積,并將研究區(qū)沉積微相劃分為:水下分流河道、河口壩、水下分流河道間、水下決口扇、水下天然堤、遠(yuǎn)砂壩、席狀砂等七種微相類型。