杏四區(qū)西部葡I1~2聚合物合理注入?yún)?shù)優(yōu)化研究
發(fā)布時(shí)間:2018-04-19 21:13
本文選題:聚合物驅(qū)油 + 歷史擬合 ; 參考:《東北石油大學(xué)》2015年碩士論文
【摘要】:杏四區(qū)西部是杏北地區(qū)第四個(gè)工業(yè)化聚驅(qū)區(qū)塊,2004年12月全面進(jìn)入水驅(qū)空白階段,2005年4月注聚。杏四區(qū)西部分兩套層系開采,現(xiàn)葡Ⅰ32和葡Ⅰ33層已接近后續(xù)水驅(qū)尾聲,下一步要對(duì)葡Ⅰ1~2層上返,利用數(shù)值模擬與現(xiàn)場(chǎng)實(shí)際相結(jié)合,確定葡Ⅰ1~2油層合理的聚合物分子量、注入濃度、注入速度和聚合物用量等參數(shù)。計(jì)算出不同注入?yún)?shù)組合對(duì)提高采收率的作用,依據(jù)實(shí)際開發(fā)效果調(diào)整注入?yún)?shù),最終優(yōu)選出適合杏北開發(fā)區(qū)聚驅(qū)區(qū)塊合理的注入?yún)?shù),提高聚驅(qū)開發(fā)效果。本文通過數(shù)值模擬軟件,對(duì)試驗(yàn)區(qū)塊進(jìn)行了水驅(qū)和聚驅(qū)歷史擬合,并對(duì)對(duì)不同聚合物分子量、濃度、注入速度、聚合物用量等注入?yún)?shù)進(jìn)行了優(yōu)化,確定了最佳聚合物分子量為1200萬,最佳注入濃度為1600~1800mg/L,最佳注入速度0.10~0.12 PV/a,最佳聚合物用量為900~1000 mg/L·PV,總結(jié)出了適合該試驗(yàn)區(qū)塊的段塞組合并進(jìn)行了開發(fā)效果預(yù)測(cè)和評(píng)價(jià)。
[Abstract]:The western part of Xingbei District is the fourth industrialized polymer flooding block in Xingbei area. It entered the blank stage of water flooding in December 2004 and injected polymer in April 2005. There are two sets of strata mining in the west of Xing4 area. Now, the water flooding is near to the end of the follow-up water flooding in the present Portugal I 32 and P I 33. The next step is to use the numerical simulation and the field practice to determine the reasonable polymer molecular weight of the Portugal I 1 + 2 oil layer, by combining the numerical simulation with the field practice. Injection concentration, injection rate, polymer dosage and other parameters. The effect of different injection parameter combinations on oil recovery is calculated and the injection parameters are adjusted according to the actual development effect. Finally the reasonable injection parameters suitable for polymer flooding block in Xingbei Development Zone are selected to improve the development effect of polymer flooding. In this paper, the history of water flooding and polymer flooding is simulated by numerical simulation software, and the injection parameters of different polymer molecular weight, concentration, injection rate and polymer dosage are optimized. The optimum polymer molecular weight is 12 million, the best injection concentration is 1 600 mg / L, the best injection rate is 0. 10 ~ 0. 12 PVP / a, and the optimum polymer dosage is 900 ~ 1 000 mg/L PV. the slug combinations suitable for the test area are summarized and the development results are predicted and evaluated.
【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)】:TE357.46
【參考文獻(xiàn)】
相關(guān)期刊論文 前2條
1 朱九成,郎兆新,張麗華;多尺度油藏?cái)?shù)值模擬的滲濾方法[J];石油學(xué)報(bào);1998年02期
2 相建民;;塔里木油田水平井優(yōu)化設(shè)計(jì)方法及跟蹤效果評(píng)價(jià)[J];天然氣地球科學(xué);2006年04期
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