Total E&P Congo used a cementless completion during this year’s second quarter in Moho North Albian field.
Welltec said it was the first deployment of a truly cementless completion using its annular isolation technology and metal expandable annular sealing technology.
Multiple metal expandable packers provided long-length open hole zonal isolation to replace the functions of traditional cement, improving efficiency in the overall well construction process, Welltec said.
The technology reduces the free annulus space between the liner, casing, and the open hole, which can be helpful to engineers working with layered reservoirs of varying permeability where selective production, stimulation, or water shut off is required.
The technology also provides simplified well completions that eliminate multiple operational risks associated with cementing in depleted and overpressured reservoirs.
