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 ,根據火山巖巖石化學特點,從測井評價機理出發,建立了利用放射性測井資料識別巖性的方法;以巖心分析資料為基礎,分析了儲層物性的測井響應特征,為利用測井資料評價儲層奠定了基礎;以測試資料為依據,綜合井周成像測井資料,建立了火山巖儲層的綜合劃分標準及孔隙度解釋模型。
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、測井數據、地震資料為基礎,綜合利用沉積學、層序地層學、石油地質學、地球物理學、有機地球化學等多門學科的有關理論和研究方法,通過對埕島東斜坡區油氣藏形成條件和模式研究,主要取得了以下幾個方面成果和認識: ( 1 )埕島東斜坡地區下第三系共劃分兩個層序、七個體系域,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、地質錄井、巖芯分析數據等各種地質資料,采用宏觀研究與微觀分析相結合的方法,對長垣北部高臺子油層砂巖儲集層,進行了沉積特征研究,用兩種不同方法研制了沉積微相自動識別程序。
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“旋回對比,分級控制”的原則,把研究區高臺子油層劃分為g 、 g 、 g 、 g四個砂層組。通過對研究區巖性、沉積構造、古生物、沉積序列、巖石組合及測井曲線特征進行研究的基礎上,認為研究區高臺子油層屬于三角洲前緣亞相沉積,并將研究區沉積微相劃分為: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、遠砂壩、席狀砂等七種微相類型。