本文選題：低滲透 + 水驅��； 參考：《東北石油大學》2015年碩士論文

【摘要】：吉林油田低滲透油藏潛力巨大,且多數(shù)已進入高含水開發(fā)階段,無效水循環(huán)嚴重,開發(fā)矛盾突出,在股份公司大力支持下,按照完善水驅、改善水驅、轉換驅替方式“三步走”整體工作部署,改善水驅是現(xiàn)階段工作重點,深部調驅技術是其關鍵-方向性工程技術,因此,在新立油田最早開發(fā)的主體區(qū)塊開展調驅新技術試驗具有重要的現(xiàn)實意義。通過篩選合理的注入劑體系(采用尺寸在納米到微米范圍的微球體系),并配合加入驅油劑,進一步擴大注水波及體積和提高洗油效率,進一步解決儲層深部驅替非均質的問題,即物性差異的問題,從而最終實現(xiàn)二次開發(fā)的較大幅度提高水驅采收率和改善水驅開發(fā)效果的目標。本文針對油田開發(fā)目前面臨的形勢及問題,確定調驅試驗區(qū)的選擇依據(jù),進而進行試驗區(qū)的區(qū)塊優(yōu)選以及調驅單井層位優(yōu)選,最終確定單井注入層段及注入量,確定空白水驅方案。通過優(yōu)勢通道識別的認識,建立調驅體系的優(yōu)選及優(yōu)化設計。通過階段試驗的效果來看,調驅試驗取得巨大成功,這不但將為新立油田二次開發(fā)探索進一步提高采收率的技術方法,同時也為吉林油田類似區(qū)塊高含水期的深化挖潛提高開發(fā)水平探索有效的技術途徑。
[Abstract]:The potential of low permeability reservoirs in Jilin Oilfield is huge, and most of them have entered the stage of high water cut development. The invalid water circulation is serious and the development contradiction is prominent. Under the support of the joint stock company, it is necessary to perfect water flooding and improve water flooding.The "three step" integral work arrangement of changing displacement mode and the improvement of water drive are the key work at this stage, and the deep displacement technology is its key-directional engineering technology, so,It is of great practical significance to test the new technology of oil flooding in the main block of Xinli Oilfield.By screening reasonable injectant system (adopting microsphere system with size from nanometer to micron, and adding oil displacement agent, the water injection sweep volume and oil washing efficiency are further expanded, and the problem of heterogeneous displacement in deep reservoir is further solved.That is, the problem of physical property difference, so as to achieve the goal of increasing the recovery efficiency of water drive and improving the effect of water drive development.In view of the situation and problems faced by oilfield development at present, this paper determines the basis for selecting the pilot area for oil flooding, and then optimizes the block selection and single well interval selection in the test area, and finally determines the injection zone and injection rate of single well.Determine the blank water drive scheme.Based on the recognition of dominant channel, the optimal selection and design of the control and flooding system are established.According to the effect of the stage test, the control and drive test has achieved great success, which will not only explore the technical methods to further improve the recovery factor for the secondary development of Xinli Oilfield,At the same time, an effective technical approach is explored for the deepening of high water cut period in similar blocks in Jilin Oilfield and the improvement of development level.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE348

【參考文獻】

相關期刊論文 前1條

1 張逢玉,盧艷,韓建彬;表面活性劑及其復配體系在三次采油中的應用[J];石油與天然氣化工;1999年02期

，

本文編號：1772303