Synthetic functionalized additives, methods of synthesizing, and methods of use
AssigneeSaudi Arabian Oil Company
InventorsHasmukh A. Patel, Carl J. Thaemlitz, Ashok Santra
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Abstract
Synthetic functionalized additives may comprise a layered magnesium silicate. The layered magnesium silicate may comprise a first functionalized silicate layer comprising a first tetrahedral silicate layer covalently bonded to at least two different functional groups, an octahedral brucite layer, and a second functionalized silicate layer comprising a second tetrahedral silicate layer covalently bonded to at least two different functional groups. A drilling fluid may comprise the synthetic functionalized additive.
Claims21
A synthetic functionalized additive comprising:
- a layered magnesium silicate, the layered magnesium silicate comprising:
- a first functionalized silicate layer comprising a first tetrahedral silicate layer covalently bonded to at least two different functional groups,
- an octahedral brucite layer, the octahedral brucite layer comprising magnesium, and
- a second functionalized silicate layer comprising a second tetrahedral silicate layer covalently bonded to at least two different functional groups,
- where the octahedral brucite layer is positioned between the first functionalized silicate layer and the second functionalized silicate layer;
- where the at least two different functional groups covalently bonded to the first tetrahedral silicate layer have different chemical structures from one another;
- and
- where the at least two different functional groups covalently bonded to the first tetrahedral silicate layer are the same or different than the at least two different functional groups covalently bonded to the second tetrahedral silicate layer.
A drilling fluid comprising:
- an aqueous base fluid;
- and
- a synthetic functionalized additive comprising:
- a layered magnesium silicate, the layered magnesium silicate comprising:
- a first functionalized silicate layer comprising a first tetrahedral silicate layer covalently bonded to at least two different functional groups,
- an octahedral brucite layer, the octahedral brucite layer comprising magnesium, and
- a second functionalized silicate layer comprising a second tetrahedral silicate layer covalently bonded to at least two different functional groups,
- where the octahedral brucite layer is positioned between the first functionalized silicate layer and the second functionalized silicate layer;
- and
- where the at least two different functional groups covalently bonded to the first tetrahedral silicate layer are the same or different than the at least two different functional groups covalently bonded to the second tetrahedral silicate layer.
Dependencies are inferred from the claim text.