Inventor

RASMUS JOHN C

US14 patents

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

SCHLUMBERGER TECHNOLOGY CORP

4 patents

US5368108ANov 29, 1994

Optimized drilling with positive displacement drilling motors

SCHLUMBERGER TECHNOLOGY CORP92 citations94

US6885942B2Apr 26, 2005

Method to detect and visualize changes in formation parameters and borehole condition

SCHLUMBERGER TECHNOLOGY CORP51 citations93

US5654503AAug 5, 1997

Method and apparatus for improved measurement of drilling conditions

SCHLUMBERGER TECHNOLOGY CORP30 citations92

US10451769B2Oct 22, 2019

Method for determining petrophysical properties from logging measurements

SCHLUMBERGER TECHNOLOGY CORP1 citations59

RASMUS JOHN C

2 patents

US8899349B2Dec 2, 2014

Methods for determining formation strength of a wellbore

RASMUS JOHN C15 citations82

US8473212B2Jun 25, 2013

Log processing in highly deviated wellbores

RASMUS JOHN C2 citations56

ANADRILL INC

1 patent

US4949575AAug 21, 1990

Formation volumetric evaluation while drilling

ANADRILL INC61 citations95

BRANNIGAN JAMES C

1 patent

US8484858B2Jul 16, 2013

Wall contact caliper instruments for use in a drill string

BRANNIGAN JAMES C39 citations90

PRAKASH ANKUR

1 patent

US8965703B2Feb 24, 2015

Applications based on fluid properties measured downhole

PRAKASH ANKUR24 citations86

PHILLIPS WAYNE J

1 patent

US8442769B2May 14, 2013

Method of determining and utilizing high fidelity wellbore trajectory

PHILLIPS WAYNE J33 citations86

DOWLA NAJMUD

1 patent

US9175559B2Nov 3, 2015

Identification of casing collars while drilling and post drilling using LWD and wireline measurements

DOWLA NAJMUD9 citations73

ALTMAN RAPHAEL

1 patent

US9091781B2Jul 28, 2015

Method for estimating formation permeability using time lapse measurements

ALTMAN RAPHAEL3 citations53

STOLTE CHRISTIAN

1 patent

US9047689B2Jun 2, 2015

Method and apparatus for visualizing multi-dimensional well logging data with shapelets

STOLTE CHRISTIAN3 citations52

CHEVRON USA INC

1 patent

US9920618B2Mar 20, 2018

Systems and methods for obtaining apparent formation dip using measurements of different effective penetration length

CHEVRON USA INC0 citations42