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Category:E21B21/00
Subcategories
This category has the following 14 subcategories, out of 14 total.
A
D
E
H
K
M
R
S
T
W
Pages in category "E21B21/00"
The following 32 pages are in this category, out of 32 total.
1
- 17994737. DOWNHOLE FILTRATION SYSTEMS AND RELATED METHODS IN OIL AND GAS APPLICATIONS simplified abstract (Saudi Arabian Oil Company)
- 18101475. Curing Lost Circulation Of Water-Based Drilling Muds simplified abstract (Halliburton Energy Services, Inc.)
- 18189841. METHODS AND COMPOSITIONS FOR NITROGEN-FOAMED LOST CIRCULATION MATERIALS simplified abstract (Saudi Arabian Oil Company)
- 18189899. METHODS AND COMPOSITIONS FOR CARBON DIOXIDE-FOAMED LOST CIRCULATION MATERIALS simplified abstract (Saudi Arabian Oil Company)
- 18455348. PROVIDING LOST CIRCULATION MATERIAL TO CURE FLUID LOSSES IN A WELL (SAUDI ARABIAN OIL COMPANY)
- 18473930. SYNERGISTIC VISCOSIFIERS FOR CLAY-FREE, WATER-BASED DRILLING FLUIDS (Halliburton Energy Services, Inc.)
- 18494051. DETERMINING CLEAN-UP CHARACTERISTICS FOR DESIGNING WELLBORE FLUID (Halliburton Energy Services, Inc.)
- 18588337. CONTROLLING LOST CIRCULATION WHILE DRILLING simplified abstract (Saudi Arabian Oil Company)
- 18649236. LEVELING SYSTEM FOR FLOW DIVERTER AND SEPARATOR FOR DOWNHOLE SEPARATION IN A MULTILATERAL WELL (Halliburton Energy Services, Inc.)
- 18672094. SYNTHESIS AND USE OF GRAFTED GRAPHENE IN AQUEOUS DRILLING FLUIDS AS LOW SHEAR RATE VISCOSITY ENHANCER simplified abstract (SAUDI ARABIAN OIL COMPANY)
- 18729185. METHODS OF RADIATION ACTIVATED LOST CIRCULATION MATERIAL PREVENTION (SAUDI ARABIAN OIL COMPANY)
- 18773840. IDENTIFYING LOST-CIRCULATION EVENTS IN DOWNHOLE DRILLING SYSTEMS (Schlumberger Technology Corporation)
H
- Halliburton energy services, inc. (20250101288). SYNERGISTIC VISCOSIFIERS FOR CLAY-FREE, WATER-BASED DRILLING FLUIDS
- Halliburton energy services, inc. (20250101817). LEVELING SYSTEM FOR FLOW DIVERTER AND SEPARATOR FOR DOWNHOLE SEPARATION IN A MULTILATERAL WELL
- Halliburton Energy Services, Inc. patent applications on March 27th, 2025
S
- Saudi arabian oil company (20240309261). SYNTHESIS AND USE OF GRAFTED GRAPHENE IN AQUEOUS DRILLING FLUIDS AS LOW SHEAR RATE VISCOSITY ENHANCER simplified abstract
- Saudi arabian oil company (20240318062). METHODS AND COMPOSITIONS FOR NITROGEN-FOAMED LOST CIRCULATION MATERIALS simplified abstract
- Saudi arabian oil company (20240318063). METHODS AND COMPOSITIONS FOR CARBON DIOXIDE-FOAMED LOST CIRCULATION MATERIALS simplified abstract
- Saudi arabian oil company (20240426181). METHOD AND APPARATUS FOR DOWNHOLE IN-SITU MIXING USING DUAL, CONCENTRIC FLOW CHANNELS
- Saudi arabian oil company (20250067132). PROVIDING LOST CIRCULATION MATERIAL TO CURE FLUID LOSSES IN A WELL
- Saudi arabian oil company (20250109642). METHODS OF RADIATION ACTIVATED LOST CIRCULATION MATERIAL PREVENTION
- SAUDI ARABIAN OIL COMPANY patent applications on April 3rd, 2025
- SAUDI ARABIAN OIL COMPANY patent applications on December 26th, 2024
- Saudi Arabian Oil Company patent applications on February 13th, 2025
- SAUDI ARABIAN OIL COMPANY patent applications on February 27th, 2025
- SAUDI ARABIAN OIL COMPANY patent applications on February 29th, 2024
- SAUDI ARABIAN OIL COMPANY patent applications on September 19th, 2024
- Saudi Arabian Oil Company patent applications on September 26th, 2024
- Sustainable Technology patent applications on 9th May 2025