本文選題：聚合物驅(qū) + 注入?yún)?shù)�。� 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：目前,我國油田已進(jìn)入三次采油階段,而聚合物驅(qū)油是三次采油中重要的開采技術(shù),但是聚合物驅(qū)動用的部位主要集中在高滲透層,存在著動用比例低,聚合物低效無效循環(huán)等缺點,而隨著化學(xué)用劑量的增加,油田產(chǎn)油量的下降,導(dǎo)致油田不能達(dá)到低成本,高效益的開采需求。因此有必要對聚合物驅(qū)進(jìn)行增產(chǎn)措施的調(diào)整進(jìn)而提高聚合物驅(qū)的動用比例,致使聚合物驅(qū)達(dá)到最優(yōu)的開采效果。本文以進(jìn)一步改善大慶油田N3井區(qū)二類油層葡Ⅰ5-7、葡Ⅱ1-3聚合物驅(qū)開采效果為目的,利用數(shù)值模擬技術(shù),針對N3井區(qū)聚合物驅(qū)分析了注聚分子量,注聚濃度,注入速度,聚用量對聚合物驅(qū)開采的影響,優(yōu)選最優(yōu)注聚參數(shù)方案,并分析聚合物驅(qū)開采效果,并在此基礎(chǔ)上進(jìn)行了措施調(diào)整。由于儲層之間的非均質(zhì)性及差異性,分析了注聚分層的必要性,根據(jù)層系劃分原則,確定了分層注入合理的層系組合,同時給予了最佳分層時機(jī)。對影響壓裂效果的因素進(jìn)行了分析,選取了合理的聚驅(qū)壓裂時機(jī)。對不同井網(wǎng)布井方式及井距對聚合物驅(qū)開采效果的影響進(jìn)行了研究,研究了適合二類油層聚合物驅(qū)的合理井網(wǎng)及井距,為N3井區(qū)聚合物驅(qū)調(diào)整措施確定了最佳方案。
[Abstract]:At present, oil fields in China have entered the stage of tertiary oil recovery, and polymer flooding is an important recovery technology in tertiary oil recovery. However, the part of polymer driving is mainly concentrated in high permeability layer, and the proportion of production is low. With the increase of the dosage of chemical use, the oil production of the oil field decreases, which leads to the low cost and high benefit of the oil field. Therefore, it is necessary to adjust the measures of increasing production of polymer flooding so as to increase the production ratio of polymer flooding, so that polymer flooding can achieve the best recovery effect. In this paper, in order to further improve the recovery effect of the second class reservoir Portugal 鈪，

本文編號：1938781