850型修井机短距离侧钻结合技术设计与应用

打开文本图片集

中图分类号：TQ317；TE243 文献标识码：A文章编号：1001-5922（2025）12-0233-04

Abstract：Inordertosolve thelarge sidetracking workloadofold welsin theoldareaofTaheand improvethe sidetracking effciency，basedon the selection of acertain densitydrilling fluid，combined with theexisting 850 workover rig and the supporting ultra-deep well“T"drilling technology，this test proposes asidetracking method that can replace the drilling rig to complete the open hole.The results show that when the drilling fluid density is 1.2g/cm3 ， the dynamic settlement density difference is 0.17g/cm3 ，and the plastic viscosity is 21 mPa·s.In addition，combined withthe ultra-deep well“T"driling technology，thedrilling trajectory issmooth，whichcan replace the drillng rig to complete some sidetracking tasks.In summary，this driling fluid combined withthe matching useof ultra-dep well “T"drilling technology has good application effect and can beter expand the low-cost sidetracking process.

Key Words： sidetracking;driling technology;drilling fluid;85O workover rig;plastic viscosity

目前，塔河某采油厂碳酸盐岩探明地质储量达6.3×108 t，未动用储量达 1.2×108 t，未动用储量进行分析，初步认识到主要存在5种模式导致储量动用率偏低。（剩余6133字）