本文選題：地質(zhì)建模 + 扶余油層��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：論文運(yùn)用經(jīng)典層序地層學(xué)和高分辨率層序地層學(xué)理論,厘定研究區(qū)層序地層格架,建立高分辨率層序地層劃分方案,劃分出等時(shí)地層單元。以此為約束,進(jìn)行油藏評(píng)價(jià)的地質(zhì)基礎(chǔ)研究,建立包括地層、構(gòu)造、沉積、儲(chǔ)層等方面的地質(zhì)概念模型;進(jìn)行油藏地質(zhì)基礎(chǔ)指導(dǎo)的地震儲(chǔ)集層預(yù)測(cè)。結(jié)合構(gòu)造特征、預(yù)測(cè)的儲(chǔ)層砂體展布和試油試采資料,進(jìn)行油藏特征和油氣分布不均一性分析。將三維構(gòu)造解釋的結(jié)果、沉積相研究結(jié)果、測(cè)井參數(shù)研究結(jié)果作為地質(zhì)建模的輸入,建立研究區(qū)精細(xì)、準(zhǔn)確的三維定量油藏地質(zhì)模型,識(shí)別砂巖及泥巖隔夾層分布范圍,進(jìn)行水平井壓裂應(yīng)用。取得了以下主要認(rèn)識(shí):1.解釋覆蓋全區(qū)的連井對(duì)比剖面8條。對(duì)全區(qū)儲(chǔ)層進(jìn)行精細(xì)劃分與對(duì)比,將研究區(qū)主要目的層段劃分為4個(gè)砂組、12個(gè)小層,各小層厚度平穩(wěn)變化不大,反映了比較穩(wěn)定的沉積,2.對(duì)工區(qū)現(xiàn)有測(cè)井資料統(tǒng)一了格式和單位,建立了各層的孔隙度、滲透率、含氣飽和度、泥質(zhì)含量解釋模型,更針對(duì)性的計(jì)算巖石脆性敏感參數(shù)。3.在前人研究基礎(chǔ)上,將優(yōu)選的屬性與井點(diǎn)砂地比建立關(guān)系,以此對(duì)儲(chǔ)層的平面分布特征進(jìn)行描述,并結(jié)合單井相的研究,刻畫出了研究區(qū)的沉積微相平面圖。4.以三維地質(zhì)模型為依托,綜合分析構(gòu)造、沉積、儲(chǔ)層,研究砂體在平面、垂向上的分布特征,通過與實(shí)鉆水平井錄井?dāng)?shù)據(jù)的對(duì)比檢驗(yàn)可知,模型精度較高,進(jìn)行水平井設(shè)計(jì)及壓裂施工,形成一套利用三維模型指導(dǎo)工程措施的新思路,以期能為類似低滲透區(qū)塊壓裂施工提供研究思路。5.地質(zhì)模型更加的精細(xì)刻畫砂體的展布,反映不同沉積時(shí)期砂體的展布,同時(shí)能夠準(zhǔn)確的把握構(gòu)造和砂體走勢(shì),對(duì)于水平井地質(zhì)設(shè)計(jì)平面位置的優(yōu)選指導(dǎo)水平井軌跡在垂向位置上的鉆進(jìn),提高砂體鉆遇率有十分重要的意義。6.地質(zhì)模型明確砂體與水平井軌跡的相交情況,使得工程技術(shù)人員對(duì)壓裂位置選擇,造縫長(zhǎng)度、裂縫方位做出預(yù)判,同時(shí)有效的識(shí)別泥巖隔擋層,對(duì)采取不同的手段進(jìn)行壓裂地質(zhì)設(shè)計(jì)提供良好的支持。
[Abstract]:Based on the classical sequence stratigraphy and the high resolution sequence stratigraphy theory, the sequence stratigraphic framework of the study area is determined, and the high resolution sequence stratigraphic division scheme is established, and the isochronous stratigraphic units are divided. Taking this as a constraint, the geological basic research of reservoir evaluation is carried out, the geological conceptual model including stratigraphic, structural, sedimentary and reservoir is established, and the seismic reservoir prediction guided by reservoir geological foundation is carried out. Combined with the structural characteristics, the distribution of reservoir sand bodies and production test data are predicted, and the reservoir characteristics and oil and gas distribution heterogeneity are analyzed. The results of 3D structural interpretation, sedimentary facies and logging parameters are taken as the input of geological modeling, and a fine and accurate 3D quantitative reservoir geological model is established to identify the distribution range of sandstone and mudstone intercalation. The application of horizontal well fracturing is carried out. I got the following main idea: 1. Interpretation of 8 correlation profiles covering the whole area. According to the fine division and correlation of the reservoir in the whole area, the main target layer in the study area is divided into 4 sand groups and 12 sub-layers, and the thickness of each layer has little stable change, which reflects the relatively stable sedimentation. This paper unifies the format and unit of the existing logging data in the working area, establishes the interpretation model of porosity, permeability, gas saturation and muddy content of each layer, and calculates the sensitive parameter of rock brittleness more pertinently. On the basis of previous studies, the relationship between the property of optimal selection and the ratio of sand to ground at well point is established to describe the characteristics of reservoir plane distribution, and combined with the study of single well facies, the sedimentary microfacies plan map .4of the study area is described. Based on the 3D geological model, this paper synthetically analyzes the structure, deposition and reservoir, studies the distribution characteristics of sand bodies in plane and vertical direction, and shows that the accuracy of the model is high by comparing with the logging data of real horizontal wells. The horizontal well design and fracturing operation are carried out, and a set of new ideas using 3D model to guide the engineering measures are formed, in order to provide research ideas for fracturing operation in similar low permeability blocks. The geological model can more precisely depict the distribution of sand bodies, reflect the distribution of sand bodies in different sedimentary periods, and at the same time accurately grasp the trend of structures and sandbodies. It is of great significance for the horizontal well trajectory to be drilled in vertical position and to improve the drilling rate of sand body. The geological model clarifies the intersection of sand body and horizontal well trajectory, which makes engineers predict fracturing location, fracture length, fracture orientation, and effectively identify mudstone barrier. It provides good support for fracturing geological design by different means.
【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】：2015
【分類號(hào)】：TE357

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本文編號(hào)：2004154