塔河地区特深井底部钻具组合力学模拟分析研究  

Simulation Analysis on Mechanics of Bottomhole Assembly in Ultradeep Wells in Tahe Area

作　　者：王龙[1,2] 李文霞 高文凯 张谧 陈俊龙 唐雪平 Wang Long;Li Wenxia;Gao Wenkai;Zhang Mi;Chen Junlong;Tang Xueping(Sinopec Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-Vuggy Reservoirs;Petroleum Engineering Technology Research Institute of Sinopec Northwest Oilfield Company;CNPC Engineering Technology R&D Company Limited;CNPC Offshore Engineering Company Limted)

机构地区：[1]中国石化缝洞型油藏提高采收率重点实验室 [2]中国石化西北油田分公司石油工程技术研究院 [3]中国石油集团工程技术研究院有限公司 [4]中国石油海洋工程有限公司

出　　处：《石油机械》2024年第8期70-76,共7页China Petroleum Machinery

基　　金：中国石油化工集团有限公司科研项目“塔河地区寒武系层钻井难点及对策研究”(KJ202022)。

摘　　要：特深层油气资源的高效开发对保障国家能源安全、实现能源接替具有重要意义,是当前油气勘探开发的重点领域。塔河地区油气资源丰富、埋藏深,勘探潜力巨大。为解决特深井钻探面临井底高温致使垂钻系统无法使用、常规钻具防斜能力弱、钻速低等难题,基于广义纵横弯曲法、钻头-地层相互作用模型评价了邻井钻具防斜性能,反演了地层倾角、走向、各向异性系数。为特深井TS-X井提供现场支撑,针对寒武系与震旦系地层特性分析不同BHA结构对井斜影响效果,设计了包含螺杆钻具的底部钻具组合,并形成了最优结构方案。现场施工中代入实钻数据实时预测钻具防斜能力,形成了最优钻压参数方案。实钻结果表明,使用设计钻具具有防斜效果好、钻速快等优点,验证了模型的正确性和优化设计的合理性。研究结果对塔河地区其他特深井安全高效钻探、实现防斜打快具有重要指导意义。The efficient development of ultradeep oil and gas resources is of great significance for ensuring national energy security and achieving energy replacement,and such resources represent a critical domain of exploration and development.In the Tahe area,the oil and gas resources are rich and buried deeply,revealing a huge potential.However,ultradeep well drilling is faced by challenges such as incapability of vertical drilling system at high temperature downhole,and poor anti-deviation capacity and low ROP of conventional drills.Based on the generalized vertical and horizontal bending method and the bit-formation interaction model,the anti-deviation performance of drill in adjacent wells were evaluated,and the formation dip angle,direction and anisotropy coefficient were inverted.In order to provide field support for the ultradeep well TS-X,considering the characteristics of the Cambrian and Sinian strata,the impacts of different bottomhole assembly(BHA)structures on wellbore deviation were analyzed,a BHA including positive displacement motor(PDM)was designed,and an optimal structural scheme was formed.During field application,real drilling data were substituted to predict the anti-deviation capacity in a real-time manner,and an optimal weight on bit(WOB)parameter scheme was formed.The actual drilling results show that the use of optimized BHA has advantages such as good anti-deviation capacity and high rate of penetration(ROP),which verifies the correctness of the model and the rationality of the optimized design.The study results have important guiding significance for safe and efficient drilling and achieving anti-deviation and fast drilling of other ultradeep wells in the Tahe area.

关 键 词：超深井 防斜打快 塔河地区 底部钻具组合 

分 类 号：TE921[石油与天然气工程—石油机械设备]