【摘要】：衛(wèi)星油田經(jīng)過多年的注水開發(fā),目前已處于中高含水開采期,許多油層被水淹,或在長期注水后孔隙結(jié)構(gòu)發(fā)生很大變化,非均質(zhì)性更加嚴(yán)重。因此,急需研發(fā)出一種經(jīng)濟(jì)有效的調(diào)驅(qū)體系,尤其是針對高滲透地層、特高滲透地層以及需要深部處理的大孔道地層的調(diào)驅(qū)體系。為此,本文開展了對非離子型聚丙烯酰胺復(fù)合交聯(lián)劑調(diào)驅(qū)體系和懸浮顆粒調(diào)驅(qū)體系段塞組合的研究,并對兩種體系的調(diào)驅(qū)性能進(jìn)行評價。首先,通過成膠時間與成膠強度,優(yōu)選出非離子型聚丙烯酰胺與復(fù)合交聯(lián)劑的最佳用量,進(jìn)而確定體系；采用不同礦化度的配液水與不同溫度的實驗環(huán)境對非離子型聚丙烯酰胺復(fù)合交聯(lián)劑調(diào)驅(qū)體系的性能進(jìn)行評價。其次,通過布氏粘度計測量添加不同超強懸浮劑的調(diào)驅(qū)體系的粘度篩選出最佳超強懸浮劑并且優(yōu)化出粘土與超強懸浮劑的最佳用量,進(jìn)而確定體系；采用不同的攪拌時間、不同礦化度的配液水以及不同溫度的實驗環(huán)境對懸浮顆粒調(diào)驅(qū)體系的性能進(jìn)行評價。再次,通過成膠時間與成膠強度研究非離子型聚丙烯酰胺復(fù)合交聯(lián)劑調(diào)驅(qū)體系與懸浮顆粒調(diào)驅(qū)體系兩者互混后的相容性：分別向兩個體系中加入總用量的1%、2%、5%、10%的調(diào)驅(qū)劑,置于相同的實驗環(huán)境中,記錄成膠時間并測量其粘度。然后,與未混的單一調(diào)驅(qū)劑的成膠時間與粘度對比,確定兩種調(diào)驅(qū)體系的相容性以及相容量的范圍。最后,通過高壓物模裝置,模擬衛(wèi)星油田地層溫度及壓力,進(jìn)行巖心剪切實驗、突破壓力實驗、測定堵塞率實驗,對驅(qū)替條件下調(diào)驅(qū)體系性能進(jìn)行研究；通過設(shè)計有層間差異的非均質(zhì)方形巖心和新型調(diào)驅(qū)體系的采收率及調(diào)驅(qū)效果優(yōu)化出兩種驅(qū)替液的最佳段塞比例。
[Abstract]:After years of water injection and development, the satellite oil field has been in the medium-high water-cut mining period, many oil layers are flooded, or the pore structure changes greatly after long-term water injection, and the heterogeneity is more serious. Therefore, there is an urgent need to develop an economical and effective drive system, especially for the high-permeability formation, the ultra-high-permeability formation and the flooding system of the large-pore formation requiring deep treatment. In this paper, the study on the combination of the combination of the non-ionic polyetheramine compound cross-linking agent and the suspension particle size-adjusting system was carried out, and the drive performance of the two systems was evaluated. firstly, the optimal dosage of the non-ionic polyetheramine and the composite cross-linking agent is preferably determined by the gel forming time and the gel forming strength, and then the system is determined; The performance of the non-ionic polyetheramine compound cross-linking agent was evaluated by the experiment environment with different salinity and the experimental environment of different temperature. secondly, the optimal super-strong suspending agent is selected by the Brookfield viscometer to measure the viscosity of the oil-adjusting system which is added with different super-strong suspending agents, the optimal dosage of the clay and the super-strong suspending agent is optimized, the system is determined, different stirring time is adopted, The properties of the suspended particle size-adjusting system were evaluated by the different salinity and the experimental environment of different temperature. once again, the compatibility of the non-ionic polyetheramine compound cross-linking agent and the suspension particle size-adjusting system is studied by the gel-forming time and the gel-forming strength:1%,2%,5% and 10% of the total amount of the control agent are added to the two systems respectively, The gel time was recorded and its viscosity was measured in the same experimental environment. The compatibility and the phase capacity of the two drive systems were then determined based on the comparison of the gel-forming time and the viscosity of the unblended single drive. Finally, through the high-pressure model device, the temperature and pressure of the formation temperature and pressure of the satellite oil field are simulated, the core shearing experiment is carried out, the pressure experiment is broken through, the blocking rate experiment is measured, and the performance of the drive system under the displacement condition is researched; The optimal slug ratio of two displacement fluids was optimized by the design of a heterogeneous square core with interlayer difference and the recovery and displacement effect of a new type of displacement control system.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE357.46

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