Inventor
HITCHCOCK GRAHAM
GB15 patents
Patents
15 patentsUS11585176B2Feb 21, 2023
Sealing cracked cement in a wellbore casing
SAUDI ARABIAN OIL CO3 citations71
US11435274B2Sep 6, 2022
Continuous mud rheology monitoring
SAUDI ARABIAN OIL CO2 citations71
US11332997B2May 17, 2022
Downhole drill-inject and plug tool
SAUDI ARABIAN OIL CO3 citations71
US11898437B2Feb 13, 2024
Method and system for determining fluid level change using pressure monitoring of annular gas
SAUDI ARABIAN OIL CO0 citations62
US11454082B2Sep 27, 2022
Engineered composite assembly with controllable dissolution
SAUDI ARABIAN OIL CO1 citations62
US12371967B2Jul 29, 2025
Wellbore operations system and method
SAUDI ARABIAN OIL CO0 citations61
US12203366B2Jan 21, 2025
Collecting samples from wellbores
SAUDI ARABIAN OIL CO0 citations61
US11473396B2Oct 18, 2022
Lost circulation shapes
SAUDI ARABIAN OIL CO0 citations60
US11225843B2Jan 18, 2022
Composite dual channel drill pipes and method of manufacture
SAUDI ARABIAN OIL CO0 citations60
US11078748B2Aug 3, 2021
Lost circulation shapes
SAUDI ARABIAN OIL CO1 citations60
US11867028B2Jan 9, 2024
Gauge cutter and sampler apparatus
SAUDI ARABIAN OIL CO0 citations55
US11867012B2Jan 9, 2024
Gauge cutter and sampler apparatus
SAUDI ARABIAN OIL CO0 citations50
US11371301B2Jun 28, 2022
Lost circulation shape deployment
SAUDI ARABIAN OIL CO0 citations50
US11761275B2Sep 19, 2023
Drill string solids deployment
SAUDI ARABIAN OIL CO0 citations49
US11709118B2Jul 25, 2023
Lost circulation materials (LCM) and lost circulation shapes (LCS) test fixture
SAUDI ARABIAN OIL CO0 citations42