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子油層地質(zhì)模型建立工作,并選取典型區(qū)塊進行了數(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子油層的精細相控地質(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,并進行了含水擬合和產(chǎn)量擬合。進而研究中區(qū)西部薩葡油層及高臺子油層的剩余油的分布狀況以及該區(qū)儲量值。建立地質(zhì)模型模擬了中區(qū)西部薩葡油層和高臺油層,中區(qū)西部薩葡油層,擬合地質(zhì)儲量8531.54萬噸,實際地質(zhì)儲量8491.7萬噸,擬合相對誤差4.69‰。高臺子油層擬合地質(zhì)儲量4695.44萬噸,實際地質(zhì)儲量4690.09萬噸,擬合相對誤差1.14‰。采用數(shù)值模擬的方式對中區(qū)西部薩葡油層開展了數(shù)值模擬歷史擬合,計算累積產(chǎn)油量3798.10萬噸,實際累積產(chǎn)油量3766.51萬噸,相對誤差為0.84%;計算含水92.89%,實際綜合含水率為92.84%,相對誤差為0.57%。單井擬合率達到73.4%,區(qū)塊壓力擬合誤差0.26MPa。對中區(qū)西部高臺子油層開展了數(shù)值模擬歷史擬合,計算累積產(chǎn)油量1887.45萬噸,實際累積產(chǎn)油量1861.99萬噸,相對誤差為1.35%;計算含水89.97%,實際綜合含水率為90.22%,相對誤差為0.27%。單井擬合率達到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,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：1449038