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US 2019/0153288 A1Published application
Invert Emulsion Drilling Fluids with Fatty Acid and Fatty Amine Rheology Modifiers
AssigneeSaudi Arabian Oil Company
InventorsVikrant Wagle, Abdullah Al-Yami
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Abstract
Provided here are various invert emulsion drilling fluid compositions. One such invert emulsion drilling fluid is a water in oil emulsion, which can include an invert emulsifier to stabilize the water in oil emulsion, a fatty acid, a 36 carbon fatty dimer diamine, a filtration control agent; and an inorganic mineral including one or more of lime, calcium chloride, and barite. The invert emulsion drilling fluids can be formulated to be substantially free of clay.
Claims20
An invert emulsion drilling fluid, comprising:
- a water in oil emulsion;
- an invert emulsifier to stabilize the water in oil emulsion in an amount operable to stabilize the water in oil emulsion;
- a fatty acid having at least eight carbons and at least one carboxylic acid group;
- a 36 carbon fatty dimer diamine;
- a filtration control agent;
- and
- an inorganic mineral including one or more of lime, calcium chloride, and barite.
4 more elements
Dependencies are inferred from the claim text.