本文關(guān)鍵詞：西加拿大盆地B區(qū)塊致密砂巖儲層三維地質(zhì)模型研究　出處：《西安石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 致密砂巖氣 三維地質(zhì)模型 有利儲層預(yù)測

【摘要】：B區(qū)塊致密砂巖氣藏位于西加拿大沉積盆地西部,目的層為三疊系下三疊統(tǒng)Upper Montney段含有機質(zhì)的含泥鈣質(zhì)致密粉砂巖儲層,該區(qū)目前處于開發(fā)初期。本區(qū)儲層具有礦物組分復(fù)雜、物性差、單一常規(guī)測井曲線不能良好反映儲層特征等特點,此外考慮到致密儲層一般需實施大型水力壓裂技術(shù)才能有效開發(fā),故本文在對研究區(qū)進行沉積及構(gòu)造特征分析、地層對比與劃分、以及巖心測試、測井資料等綜合分析的基礎(chǔ)上,建立符合本區(qū)實際地質(zhì)認識特點的儲層孔隙度、滲透率、飽和度、TOC、吸附氣含量、巖石脆性指數(shù)、地層地應(yīng)力等7種測井解釋模型,完成對致密砂巖儲層在儲集性能、烴源巖特征、壓裂開發(fā)品質(zhì)等方面的測井資料綜合評價。以鉆井地質(zhì)分層數(shù)據(jù)為主要依據(jù),建立Upper Montney段儲層三維構(gòu)造模型;以測井解釋結(jié)果的多礦物相對含量為基礎(chǔ),建立巖相模型;在巖相模型的基礎(chǔ)上,分別對各類儲層參數(shù)測井解釋結(jié)果進行分層分巖相的變差函數(shù)相關(guān)性分析,并應(yīng)用序貫高斯模擬方法完成孔隙度、滲透率、飽和度、TOC、吸附氣含量、巖石脆性指數(shù)等6種參數(shù)的儲層三維屬性建模,對各屬性模型的空間展布特征進行表征。依據(jù)儲層測井綜合解釋及三維地質(zhì)建模研究結(jié)果,劃分出孔隙度、滲透率、飽和度、吸附氣含量、巖石脆性指數(shù)等5種參數(shù)的I、II、III類儲層分類標準;分別對每類儲層的上述5種屬性模型進行疊加分析,對研究區(qū)目的層進行有利儲層平面分布預(yù)測研究,并優(yōu)選縱向有利層位,從而為后續(xù)的布井及水力壓裂等開發(fā)工作提供一定參考依據(jù)。
[Abstract]:The tight sandstone gas reservoir in block B is located in the western part of western Canada sedimentary basin, and the target layer is a mud-calcareous siltstone reservoir with organic matter in Upper Montney member of Lower Triassic of Triassic. The reservoir in this area is in the early stage of development. The reservoir in this area is characterized by complex mineral components, poor physical properties, and the single conventional logging curve can not well reflect the reservoir characteristics. In addition, considering that large hydraulic fracturing technology is generally needed to develop compact reservoirs effectively, this paper analyzes sedimentary and structural characteristics, stratigraphic correlation and division, and core testing in the study area. On the basis of comprehensive analysis of logging data, reservoir porosity, permeability, saturation, adsorption gas content and rock brittleness index are established in accordance with the actual geological characteristics of this area. The logging data of tight sandstone reservoir in reservoir performance, source rock characteristics, fracturing development quality and so on are evaluated by seven logging interpretation models, such as formation stress and so on. The main basis is drilling geological stratification data. Three-dimensional structural model of reservoir in Upper Montney member is established. The lithofacies model is established on the basis of the multi-mineral relative content of log interpretation results. On the basis of lithofacies model, the correlation analysis of variation function of stratified lithofacies is carried out on the results of log interpretation of various reservoir parameters, and the porosity, permeability and saturation are completed by using sequential Gaussian simulation method. TOC, adsorption gas content, rock brittleness index and other six parameters of reservoir 3D attribute modeling. According to the comprehensive interpretation of reservoir logging and the results of 3D geological modeling, the porosity, permeability, saturation and adsorption gas content are classified. Rock brittleness index and other 5 parameters are classified according to the class III reservoir classification criteria. The above five attribute models of each kind of reservoir are analyzed separately, and the favorable reservoir plane distribution prediction is carried out on the target layer in the study area, and the longitudinal favorable layer is selected. It can provide some reference for the following development work, such as well layout and hydraulic fracturing.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13;P628.3

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本文編號：1430513