本文關(guān)鍵詞： 二次開發(fā) 二類油層 水驅(qū) 化學(xué)驅(qū)　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：本文立足于中區(qū)西部二次開發(fā)規(guī)律,開展了中區(qū)西部薩葡油層和高臺(tái)子油層地質(zhì)模型建立工作,并選取典型區(qū)塊進(jìn)行了數(shù)值模擬歷史擬合,為中區(qū)西部二次開發(fā)條件下開發(fā)技術(shù)界限研究奠定了基礎(chǔ)。建立了中區(qū)西部薩葡油層及高臺(tái)子油層的精細(xì)相控地質(zhì)模型,并且建立了孔隙度、滲透率、飽和度以及凈毛比等儲(chǔ)層狀況的模型,研究了滲透率的分布、沉積規(guī)律、相滲曲線分布規(guī)律等因素的模型,并進(jìn)行了含水?dāng)M合和產(chǎn)量擬合。進(jìn)而研究中區(qū)西部薩葡油層及高臺(tái)子油層的剩余油的分布狀況以及該區(qū)儲(chǔ)量值。建立地質(zhì)模型模擬了中區(qū)西部薩葡油層和高臺(tái)油層,中區(qū)西部薩葡油層,擬合地質(zhì)儲(chǔ)量8531.54萬(wàn)噸,實(shí)際地質(zhì)儲(chǔ)量8491.7萬(wàn)噸,擬合相對(duì)誤差4.69‰。高臺(tái)子油層擬合地質(zhì)儲(chǔ)量4695.44萬(wàn)噸,實(shí)際地質(zhì)儲(chǔ)量4690.09萬(wàn)噸,擬合相對(duì)誤差1.14‰。采用數(shù)值模擬的方式對(duì)中區(qū)西部薩葡油層開展了數(shù)值模擬歷史擬合,計(jì)算累積產(chǎn)油量3798.10萬(wàn)噸,實(shí)際累積產(chǎn)油量3766.51萬(wàn)噸,相對(duì)誤差為0.84%;計(jì)算含水92.89%,實(shí)際綜合含水率為92.84%,相對(duì)誤差為0.57%。單井?dāng)M合率達(dá)到73.4%,區(qū)塊壓力擬合誤差0.26MPa。對(duì)中區(qū)西部高臺(tái)子油層開展了數(shù)值模擬歷史擬合,計(jì)算累積產(chǎn)油量1887.45萬(wàn)噸,實(shí)際累積產(chǎn)油量1861.99萬(wàn)噸,相對(duì)誤差為1.35%;計(jì)算含水89.97%,實(shí)際綜合含水率為90.22%,相對(duì)誤差為0.27%。單井?dāng)M合率達(dá)到74.9%,區(qū)塊壓力擬合誤差0.42MPa。完成中區(qū)西部薩葡二類油層、三類油層、高臺(tái)子油層水驅(qū)及化學(xué)驅(qū)、一類油層聚驅(qū)后三元復(fù)合驅(qū)方案預(yù)測(cè),總結(jié)了不同階段開發(fā)規(guī)律,歸納出中區(qū)西部開發(fā)模式。
[Abstract]:Based on the law of secondary development in the western part of the central region, this paper has carried out the establishment of geological models of the Sapu and Gaotaizi reservoirs in the western part of the central region, and selected typical blocks to carry out the historical simulation of the numerical simulation. It lays a foundation for the study of the technical limits of development under the condition of secondary development in the western part of the central region. The fine facies controlled geological model of the Sapu and Gaotaizi reservoirs in the western part of the central region is established, and the porosity and permeability are also established. The distribution of permeability, sedimentary law and distribution of facies and permeability curve are studied by using the model of saturation and net / wool ratio. Water cut fitting and output fitting are carried out, and the distribution of remaining oil and reserves in the sap and Gaotaizi reservoirs in the western part of the central region are studied. A geological model is established to simulate the sap and Gaotai reservoirs in the western part of the central region. Layer. In the western part of the central region, there are eighty-five million three hundred and fifteen thousand and four hundred tons of fitted geological reserves and eighty-four million nine hundred and seventeen thousand tons of actual geological reserves. The fitting relative error is 4.69 鈥，

本文編號(hào)：1449038