Inventor
COLES RANDOLPH S
US13 patents
⚠️ This page may combine multiple inventors who share the name “COLES RANDOLPH S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERVICES INC
10 patentsUS9187970B2Nov 17, 2015
Wellbore isolation devices and methods of use to prevent pump offs
HALLIBURTON ENERGY SERVICES INC7 citations80
US9217305B2Dec 22, 2015
Downhole tool string braking
HALLIBURTON ENERGY SERVICES INC18 citations74
US9410419B2Aug 9, 2016
Device for measuring and transmitting downhole tension
HALLIBURTON ENERGY SERVICES INC6 citations71
US11662495B2May 30, 2023
Sonic through tubing cement evaluation
HALLIBURTON ENERGY SERVICES INC2 citations68
US10323508B2Jun 18, 2019
Apparatus and methods for monitoring the retrieval of a well tool
HALLIBURTON ENERGY SERVICES INC3 citations68
US11118425B2Sep 14, 2021
Pumpdown regulator
HALLIBURTON ENERGY SERVICES INC0 citations59
US12529817B2Jan 20, 2026
Sonic through tubing cement evaluation
HALLIBURTON ENERGY SERVICES INC0 citations58
US11815478B2Nov 14, 2023
Through-tubing, cased-hole sealed material density evaluation using gamma ray measurements
HALLIBURTON ENERGY SERVICES INC0 citations58
US9766372B2Sep 19, 2017
Calibration resistivity tools in environments with radio-frequency noise
HALLIBURTON ENERGY SERVICES INC0 citations50
US11808136B2Nov 7, 2023
Through-tubing, cased-hole sealed material evaluation using acoustic measurements
HALLIBURTON ENERGY SERVICES INC0 citations49
COLES RANDOLPH S
3 patentsUS9109415B2Aug 18, 2015
Automated diversion valve control for pump down operations
COLES RANDOLPH S13 citations81
US9657540B2May 23, 2017
System and method for wireline tool pump-down operations
COLES RANDOLPH S12 citations75
US8875785B2Nov 4, 2014
System and method for correcting downhole speed
COLES RANDOLPH S4 citations70