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为适应国家“七五”重点科技攻关项目的需要和进一步完善钻井工艺技术研究手段,中原油田1988年建成一口全尺寸科学实验井。主井简φ244.5mm套管下深1006.45m,两根φ60.3mm旁通交管分别在516.81m和924.70m与主井筒相通;副并筒φ339.7mm套管下深143.97m;1号气包井可存贮50~70MPa压缩气体0.24m3;2号气包井可存贮20MPa压缩气体6m3。气包井分别与主井筒的旁通支管相连,压缩气体可视为地层流体,以人工模拟溢流、井涌和井喷等试验。为此,实验井除配备有全套动力、提升设备外,还有全套的井控装备、循环设备、气密封试压装置等,并建有数据采集和处理分析室。本文还介绍了实验井已开展的实验研究工作和尚待开发的其它功能。
In order to meet the national “Seventh Five-Year” key scientific and technological project needs and to further improve the drilling technology research tools, Zhongyuan Oilfield in 1988 to build a full-size scientific experiment well. In the main shaft, φ244.5mm is 1006.45m deep under the casing, and two φ60.3mm bypass pipes are communicated with the main shaft at 516.81m and 924.70m respectively. The depth of the sub-parallel cylinder at φ339.7mm is 143.97m. No. 1 gas well can store 50 ~ 70MPa compressed gas 0.24m3; No. 2 gas well can store 20MPa compressed gas 6m3. The gas-bag wells are respectively connected with the bypass branch pipes of the main wellbore. The compressed gas can be regarded as the formation fluid to simulate the overflow, well-kick and blowout tests by artificial simulation. To this end, in addition to the experimental wells equipped with a full range of power, enhance equipment, there is a full set of well control equipment, circulation equipment, gas seal pressure test equipment, and built a data acquisition and processing analysis room. This paper also introduces experimental experiments carried out by experimental wells and other functions yet to be developed.