It's been a long-term goal-a"holy grail"of well construction-to create a well with only one diameter of casing.The savings in time,fluids,cement,hangers and other hardware,preventing constricted completions and their effect on production,and many other advantages are well documented,and they apply roughly in proportion to the"slimness"of the well.In other words,advantages accrue if just one string of intermediate,"telescoping"casing can be eliminated.
展开▼
