Page 42: of Maritime Reporter Magazine (July 2017)

Offshore Subsea

Mapping-While-Drilling Evolution geosphere

Logging-while-drilling (LWD) technologies have evolved signi? cantly in the past decade. Today they integrate sophisticated algorithms that take advantage of the ever-increasing technical complexity combining mechanical, electrical, and software systems that are implemented down- hole. These achievements helps users gain a better understanding of the reservoir while bring drilling into a new area of ef? ciency and cost savings. Claudio Paschoa, Maritime Reporter’s correspondent in Brazil, spoke to Jean Seydoux, Program Manager for Advanced Reservoir

Mapping Technologies for Drilling and Measurement at Schlumberger, regarding its GeoSphere Mapping-While-Drilling Service.

ware development. From these measure- zonal coverage gives geoscientists and risks in shallow or complex reservoir.

What were the breakthroughs in this ments, a resistivity map of the reservoir drilling engineers the capability to ex- Productivity of the well can be impacted technology’s development along the is inverted using a novel stochastic pro- tend laterals—even in the most complex by shallow landings, where too much of last