热力采油技术在大庆油田江37区块的应用

发布时间：2018-03-01 15:22

  本文关键词： 稠油 热力采油 现场应用　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：大庆油田随着开发时间的延长,开发效果逐渐变差,易于开发的好油层已全部动用,目前开发难度越来越大。大庆油田萨尔图、葡萄花油层都有常规开采工艺技术无法满足的低渗透稠油,原油粘度较高,但原油的粘温关系敏感,粘度随温度变化较大。根据稠油油田开发经验和应用商业化软件STARS热采模型蒸汽吞吐数值模拟研究结果,采用热力采油技术是改善低渗透、高粘度区块开发效果的有效途径,拟在江37区块开展热力采油现场应用研究。本文对热力采油地面注汽设备进行完善,注汽井筒隔热和井下工具技术、注汽防膨工艺技术、注汽测试工艺技术、注采参数优化等方面进行了分析研究,通过室内理论计算和数值模拟,结合江37区块油田地质特点,经过3年来的研究与应用,初步形成了一套适合大庆地区稠油热力采油工艺技术和设计方法,通过在江37区块的现场应用,工艺取得成功,并见到了较好的开发效果,对大庆油田后期大规模注蒸汽开采低渗透油藏具有重要意义。
[Abstract]:With the extension of the development time, the development effect of Daqing oil field becomes worse gradually, the good reservoir that is easy to be developed has been fully used, and it is becoming more and more difficult to develop at present. There is a low permeability heavy oil which can not be satisfied by conventional production technology in the Putaohua reservoir. The viscosity of crude oil is high, but the relationship between viscosity and temperature of crude oil is sensitive. The viscosity varies greatly with temperature. According to the development experience of heavy oil field and the application of commercial software STARS thermal recovery model steam huff and puff numerical simulation results, thermal oil recovery technology is an effective way to improve the development effect of low permeability and high viscosity block. In this paper, the surface steam injection equipment of thermal oil production, the heat insulation and downhole tool technology of steam injection wellbore, the technology of steam injection anti-expansion technology, the technology of steam injection test, and the technology of steam injection test are proposed to be carried out in Jiang37 block. Through the laboratory theoretical calculation and numerical simulation, combined with the geological characteristics of Jiang37 block oil field, after three years of research and application, A set of techniques and design methods suitable for thermal recovery of heavy oil in Daqing area have been preliminarily formed. Through the field application in Jiang37 Block, the process has been successful, and a good development effect has been observed. It is of great significance for large scale steam injection production and low permeability reservoir in Daqing Oilfield.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE357.44
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本文编号：1552511