红岗地区水平井钻井提速配套技术研究

发布时间：2018-04-15 22:15

本文选题：水平井 + 钻井提速　；参考：《东北石油大学》2015年硕士论文

【摘要】：红岗地区是吉林油田油藏开发评价重点区域,其中红90-1区块是水平井开发示范区。该区地层条件复杂、稳定性差,钻井过程中存在井漏、井塌等问题,同时下部地层岩石可钻性较差,钻井速度慢,导致水平井钻井周期长、成本高,严重制约该区的开发建设速度。本文针对以上难点开展了红岗地区水平井钻井提速配套技术研究。针对红岗、大安地区水平井特点优选了能够满足安全快速钻井的二开井身结构、三开小井眼水平井井身结构,能够有效地节约钻井成本。形成了两口井、四口井平台水平井优化设计技术,优化了水平井井眼控制技术,提高了轨迹控制精度,有效地增加了复合钻进井段比例,增加了钻井速度。以红90-1水平井测井数据为基础,对红90-1区块三开井段地层岩石可钻性进行了分析评价。通过个性化钻头优化设计及提速试验,三开井段、二开井段机械钻速均取得了显著提高。开展了红岗地区水平井钻井液技术研究,优选了KCL-聚合物钻井液体系,对该钻井液体系性能进行了分析评价,能够减少井下复杂情况的发生,满足红岗地区水平井安全快速钻进要求。本文形成的上述红岗地区水平井钻井提速配套技术已在吉林油田其他区块推广应用,进一步提高了这些地区水平井钻井速度。
[Abstract]:Honggang area is the key area for reservoir development evaluation in Jilin Oilfield, and Hong90-1 block is the demonstration area for horizontal well development.In this area, the formation conditions are complex, the stability is poor, well leakage, well collapse and so on exist in the drilling process. At the same time, the rock drillability of the lower formation is poor and the drilling speed is slow, which leads to the long drilling period and high cost of horizontal well drilling.Seriously restrict the speed of development and construction in this area.In view of the above difficulties, this paper studies the matching technology of drilling speed increase in horizontal well in Honggang area.According to the characteristics of horizontal wells in Honggang and Da'an areas, the second well structure and the horizontal well structure with three small holes can be selected to meet the requirements of safe and fast drilling, which can effectively save the drilling cost.Two wells, four wells platform horizontal well optimization design technology is formed, the horizontal well hole control technology is optimized, the trajectory control accuracy is improved, the compound drilling section proportion is effectively increased, and the drilling speed is increased.Based on the logging data of Hong90-1 horizontal well, the drillability of formation rock in the third section of Hong90-1 block is analyzed and evaluated.Through the optimization design of individualized bit and the test of raising speed, the mechanical drilling speed of the three open section and the second section have been improved remarkably.The drilling fluid technology of horizontal well in Honggang area was studied, KCL-polymer drilling fluid system was selected, and the performance of the drilling fluid system was analyzed and evaluated, which can reduce the occurrence of downhole complex situation.Meet the requirements of safe and rapid drilling of horizontal wells in Honggang area.In this paper, the matching technology of drilling speed increase in horizontal wells in Honggang area has been popularized and applied in other blocks of Jilin Oilfield, and the drilling speed of horizontal wells in these areas has been further improved.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE243

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