Inventor

NICHOLS EDWARD

FR35 patents

⚠️ This page may combine multiple inventors who share the name “NICHOLS EDWARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NICHOLS EDWARD

SCHLUMBERGER TECHNOLOGY CORP

Subsurface conductivity imaging systems and methods

Permanently emplaced electromagnetic system and method for measuring formation resistivity adjacent to and between wells

Marine electromagnetic measurement system

Method and apparatus for the measurement of the electrical resistivity of geologic formations employing modeling data

Resistivity tool with selectable depths of investigation

Determining correction factors representing effects of different portions of a lining structure

Sensor for detecting the magnetic field in the area of downhole casing

Remotely operable measurement system and method employing same

Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys

Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys

Remote field testing using a permeable core

Measurement compensation using multiple electromagnetic transmitters

Methods and apparatus to detect fluid distributions

Electromagnetic assessment of multiple conductive tubulars

Analyzing subterranean formation with current source vectors

WESTERNGECO LLC

Subsurface conductivity imaging systems and methods

Surveying using vertical electromagnetic sources that are towed along with survey receivers

Receivers and methods for electromagnetic measurements

Surveying method using an arrangement of plural signal sources

Methods of electromagnetic logging using a current focusing receiver

Processing measurement data in a deep water application

Methods for electromagnetic measurements and correction of non-ideal receiver responses

Method for correcting magnetic based orientation measurements for local biasing fields

Processing measurement data that involves computing a derivative of the measurement data that represents a subterranean structure

Surveying method using an arrangement of plural signal sources

NICHOLS EDWARD

Time synchronization in units at different locations

Deriving an electromagnetic field in one direction based on measurement data of one or more sensing elements for measuring an electromagnetic field in another direction

ALUMBAUGH DAVID

Electromagnetic survey using naturally occurring electromagnetic fields as a source

Systems and methods for electromagnetic detection of a formation anomaly from a near bit location while drilling

ELECTROMAGNETIC INSTR INC

Electromagnetic induction method and apparatus for the measurement of the electrical resistivity of geologic formations surrounding boreholes cased with a conductive liner

ROSTHAL RICHARD

Electromagnetic logging between borehole and surface

CHEN JIUPING

Method and apparatus to automatically recover well geometry from low frequency electromagnetic signal measurements

MORRISON FRANK

Characterizing at least one property of a liner that lines a well

HOBSON MICHAEL R

Method and system for providing registration coverage in a telecommunications network

KRAMER GARRETT

System and method for elevated source to borehole electromagnetic survey