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      碳酸鹽巖縫洞型油藏注水開發(fā)研究

      2016-11-19 21:46:33竇之林張烈輝魯新便劉學利吳鋒
      科技創(chuàng)新導報 2016年4期

      竇之林 張烈輝 魯新便 劉學利 吳鋒

      摘 要:碳酸鹽巖縫洞型油藏由于裂縫、溶洞的分布隨機性強,其流動機理和開發(fā)方式與常規(guī)的碳酸鹽巖裂縫性油藏存在很大差別,注水開發(fā)目前處于試注階段,還沒有形成相應的油藏注水開發(fā)理論體系。因此,建立適合碳酸鹽巖縫洞型油藏的注采關系及注水方式,優(yōu)化碳酸鹽巖縫洞型油藏不同注水方式下的注采參數(shù),是碳酸鹽巖縫洞型油藏注水開發(fā)理論與方法的關鍵基本問題。本研究以油藏工程學、流體動力學理論為基礎,以室內物理模擬實驗、數(shù)值模擬、礦場注水試驗和大量動態(tài)資料統(tǒng)計分析為基本手段,充分考慮理論研究、室內實驗研究與現(xiàn)場試驗研究相結合,針對課題研究目標,選擇具有代表性的縫洞單元模型進行重點研究,對油藏能量、注采關系、注水方式、注采參數(shù)、注水開發(fā)動態(tài)及開發(fā)效果評價方法進行深入研究,進而形成系統(tǒng)的縫洞型油藏注水開發(fā)技術政策及注水開發(fā)效果評價方法。2013年通過進一步開展室內物模和數(shù)值模擬研究,建立了縫洞型油藏室內三維注才井組實驗模型,完善了縫洞型油藏單元注水方式,優(yōu)化了縫洞型油藏單元注水的注采參數(shù),進一步完善了不同類型巖溶縫洞儲集提注水技術政策。該課題完成了年度研究計劃內容和目標。

      關鍵詞:塔河油田 縫洞型油藏 注水開發(fā) 注水方式 注采參數(shù)

      Abstract:Because of cracks, caves strong distribution randomness in Carbonate fracture cave reservoir. Its current mechanism and development mode have big difference with the conventional fractured carbonate reservoirs. Water injection development is currently in trial stage, Not form the corresponding theoretical system waterflooding reservoir.Subject to reservoir engineering、fluid dynamics theory, In physical simulation experiments, numerical simulation, the mine water testing and statistical analysis of a large number of dynamic data as the basic means. Fully consider the theoretical research, experimental research experiments and field studies combining indoor, For research objectives, Select fractured unit model to focus on a representative study, On the reservoir of energy, the relationship between injection, water injection mode, injection parameters, water development and development effectiveness evaluation method of dynamic depth study. Build relationships and water injection methods suitable for fracture-cave carbonate reservoir, Thus forming system vuggy reservoir waterflood injection technology policy and development effectiveness evaluation. Further indoor physical model and numerical simulation in 2013 year, Established a three-dimensional vuggy indoor injection wells experimental model group, Improved vuggy reservoir unit injection mode, Optimize the injection parameters vuggy reservoir water injection unit, Further improve the different types of karst fractured reservoir provides water technology policy. The subject completed the annual research program content and objectives.

      Key Words:Tahe Oilfield;fractured-vuggy reserviors;Water flooding development;Water injection;Injection-production parameters

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