论文部分内容阅读
2014年7月下旬,中国石油长城钻探工程公司在吉林德深15井完成氮气钻井施工,首次突破了气体钻井穿越产气储层的技术禁区,实现了一次性作业成功,标志着长城钻探氮气钻井技术具备致密储层的服务能力。氮气钻井技术是在产层进行钻进时选取的钻井方式,能够有效地解决钻井施工中的恶性井漏、压差卡钻和钻井速度慢等技术性难题,是能够真正实现钻进过程“零污染”的钻井技术,具有及时保护和发现低压、低饱和、低渗透率油层的技术优势,能够提高油井单井产量和机械钻速。德深15井是吉林油田在松辽平原德惠地区部署的一口勘探井。由于该区块为低压力、低渗透率地层,常规钻井液钻进中的
In late July 2014, PetroChina Great Wall Drilling Engineering Co., Ltd. completed nitrogen drilling at Well 17 in Jilin, which for the first time broke through the restricted technical zone for gas drilling through gas-producing reservoirs and achieved a one-time operation, marking the Great Wall Drilling Nitrogen Drilling Technology has the ability to service tight reservoirs. Nitrogen drilling technology is a drilling method selected when drilling in the pay zone, which can effectively solve the technical problems of malignant well leakage, differential pressure sticking and slow drilling speed during drilling. It is a tool that can truly realize drilling process Pollution "drilling technology, with the timely protection and discovery of low-pressure, low-saturation, low-permeability oil layer technology advantages, can improve single well production and ROP. Well DE-15 is an exploration well deployed by Jilin Oilfield in the Dehui area of Songliao Plain. As the block is low pressure, low permeability formations, conventional drilling fluid drilling