本文選題：產(chǎn)水率 + 油水相對(duì)滲透率�。� 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：大慶G地區(qū)葡萄花油層具有高泥、復(fù)雜孔隙結(jié)構(gòu)和復(fù)雜流體性質(zhì)的特點(diǎn),為提高該區(qū)塊儲(chǔ)層流體性質(zhì)判斷準(zhǔn)確率和產(chǎn)油產(chǎn)水相對(duì)比例計(jì)算精度,提出研究利用電阻率測(cè)井預(yù)測(cè)儲(chǔ)層產(chǎn)水率的方法。本文針對(duì)葡萄花油層的儲(chǔ)層特征,引入三水概念將泥質(zhì)巖石總孔隙水分成可動(dòng)水、微孔隙水和黏土水,利用彎曲毛管模型,將可動(dòng)水孔隙等效為由n根毛管組成的孔隙,結(jié)合泊肅葉方程和達(dá)西定律,推導(dǎo)水相相對(duì)滲透率與含水飽和度及可動(dòng)水流動(dòng)等效曲折度之間的關(guān)系式。利用三孔隙導(dǎo)電模型,推導(dǎo)只有可動(dòng)流體孔隙存在的巖石電阻增大系數(shù)與含水飽和度及可動(dòng)水導(dǎo)電等效曲折度之間的關(guān)系式。再依據(jù)可動(dòng)水水流與電流流動(dòng)相似性原理,建立了泥質(zhì)巖石水相相對(duì)滲透率與含水飽和度及電阻率增大系數(shù)之間的關(guān)系。依據(jù)可動(dòng)流體孔隙各組分體積等量關(guān)系以及比面積概念,推導(dǎo)出水相相對(duì)滲透率與油相相對(duì)滲透率關(guān)系式,從而得出泥質(zhì)巖石油相相對(duì)滲透率與含水飽和度及電阻率增大系數(shù)之間的關(guān)系式。針對(duì)等效巖石元素模型,依據(jù)大小孔隙流量相同,結(jié)合泊肅葉方程和達(dá)西定律,再依據(jù)可動(dòng)水水流與電流流動(dòng)相似性原理,推導(dǎo)水相與油相相對(duì)滲透率與含水飽和度及可動(dòng)水孔隙結(jié)構(gòu)效率之間的關(guān)系式。結(jié)合等效巖石元素模型與三孔隙導(dǎo)電理論,建立了電阻增大系數(shù)與含水飽和度及可動(dòng)水孔隙結(jié)構(gòu)效率之間的關(guān)系。從而得出泥質(zhì)巖石水相和油相相對(duì)滲透率與含水飽和度及電阻率增大系數(shù)之間的關(guān)系式。利用泥質(zhì)巖樣壓汞實(shí)驗(yàn)數(shù)據(jù)根據(jù)Burdine模型獲得水相和油相相對(duì)滲透率實(shí)驗(yàn)曲線,利用同一泥質(zhì)巖樣的巖電實(shí)驗(yàn)數(shù)據(jù)根據(jù)三孔隙導(dǎo)電模型以及等效巖石元素和三孔隙結(jié)合導(dǎo)電模型獲得巖石電阻增大系數(shù)值。在此基礎(chǔ)上,對(duì)泥質(zhì)巖石油水相對(duì)滲透率與電阻率關(guān)系模型進(jìn)行了實(shí)驗(yàn)驗(yàn)證。利用儲(chǔ)層產(chǎn)水率與油水相對(duì)滲透率之間關(guān)系確定儲(chǔ)層的產(chǎn)水率。利用巖心分析數(shù)據(jù)和測(cè)井資料建立了葡萄花油層儲(chǔ)層泥質(zhì)含量、孔隙度、束縛水飽和度等參數(shù)解釋方法。將本文建立的儲(chǔ)層產(chǎn)水率預(yù)測(cè)方法,應(yīng)用于實(shí)際資料解釋,結(jié)果表明該方法能夠準(zhǔn)確地預(yù)測(cè)大慶G地區(qū)葡萄花油層產(chǎn)水率。
[Abstract]:The Putaohua reservoir in Daqing G area is characterized by high mud, complex pore structure and complex fluid properties. A method for predicting reservoir water yield by resistivity logging is proposed. In this paper, according to the reservoir characteristics of Putaohua reservoir, the concept of "three water" is introduced to change the total pore water of muddy rock into movable water, micro-pore water and clay water. By using the curved capillary model, the movable water pore is equivalent to the pore composed of n root capillary. The relationship between relative permeability of water phase, water saturation and equivalent zigzag of movable water flow is derived by combining Poiseuer equation and Darcy's law. Based on the three-pore conductivity model, the relationship between the coefficient of increase of rock resistance and the saturation of water and the equivalent degree of conductivity of movable water is derived. Based on the principle of similarity between movable water flow and current flow, the relationship between relative permeability of muddy rock and water saturation and resistivity increase coefficient is established. According to the relation of pore volume and specific area of movable fluid, the relationship between relative permeability of water phase and oil phase is derived. The relationship between the relative permeability of mudstone and the water saturation and resistivity increase coefficient is obtained. According to the equivalent rock element model, according to the same pore flow rate, combined with Poisson's equation and Darcy's law, and then according to the principle of similarity between movable water flow and current flow, The relationship between relative permeability of water phase and oil phase, water saturation and pore structure efficiency of movable water is derived. Based on the equivalent rock element model and the three-pore conductivity theory, the relationship between the coefficient of resistance increase and the water saturation and the efficiency of the movable pore structure is established. The relationship between the relative permeability of muddy rock, water saturation and resistivity increase coefficient is obtained. According to the Burdine model, the experimental curves of the relative permeability of water and oil phases were obtained by using the mercury pressure experimental data of shale samples. According to the three pore conductivity model and the equivalent rock element and three pore combined conductivity model, the rock resistance increase coefficient is obtained by using the rock electrical experiment data of the same muddy rock sample. On this basis, the model of the relation between oil and water relative permeability and resistivity of muddy rock is verified experimentally. The relation between reservoir water production rate and oil-water relative permeability is used to determine reservoir water production rate. Based on the core analysis data and logging data, the interpretation methods of parameters such as muddy content, porosity and irreducible water saturation are established. The prediction method of reservoir water production rate established in this paper has been applied to the interpretation of actual data. The results show that the method can accurately predict the water production rate of Gaohua oil reservoir in Daqing G area.
【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)】：P618.13

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本文編號(hào)：1887413