We present a Bayesian inversion scheme to extract multiple bed boundaries from extra-
deep directional logging-while-drilling (LWD) resistivity measurements (EDDRM). The …

Geosteering is a sequential decision process under uncertainty. The goal of geosteering is
to maximize the expected value of the well, which should be defined by an objective value …

Developments in ultradeep azimuthal resistivity (UDAR) technology has recently progressed
from their application in high-angle and horizontal wells to low-angle and vertical wells. This …

Deep directional electromagnetic (EM) logging-while-drilling technology is the principal
enabler of proactive well placement. The reservoir-scale measurements are used to map …

In situ overpressures in sedimentary basins are commonly attributed to disequilibrium
compaction or fluid expansion mechanisms, although overpressures in shallow sedimentary …

With the introduction of ultradeep azimuthal resistivity (UDAR) logging-while-drilling (LWD)
tools toward the beginning of the last decade, the oil and gas industry went from real-time …

Equinor has played an important role in the last decade in the testing and development of
ultradeep azimuthal resistivity (UDAR) measurements both for look-ahead and look-around …

Deep-directional electromagnetic (EM) logging-while-drilling technology can map reservoir
boundaries and fluid contacts for strategic geosteering, reservoir navigation, and more …

The nature of carbonate deposition as well as diagenetic processes can cause the
development of unique geological features such as cavities, vugs and fractures. These are …

The recently introduced electromagnetic look-ahead (EMLA) tool applies deep-directional
resistivity logging-while-drilling technology for geostopping and other applications in vertical …