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US 11,078,402 B2Granted
Use of particulate or fibrous materials in gravel pack applications
AssigneeSchlumberger Technology Corporation
InventorsMatthew Offenbacher, Balkrishna Gadiyar
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Abstract
Methods include drilling at least one interval of a wellbore with a water-based wellbore fluid producing a filtercake in the at least one interval of the wellbore. The methods also include gravel packing an interval of a wellbore traversing a subterranean formation with a gravel pack that comprises polyhydroxycarboxylic acid, and hydrolyzing the polyhydroxycarboxylic acid to degrade at least a portion of the filtercake.
Claims14
A method comprising:
- drilling at least one interval of a wellbore with a water-based wellbore fluid, wherein the water-based wellbore fluid produces a filtercake in the at least one interval of the wellbore;
- gravel packing an interval of a wellbore traversing a subterranean formation with a gravel pack comprising polyhydroxycarboxylic acid, wherein the polyhydroxycarboxylic acid is a polymer formed from one or more monomers selected from a group consisting of malic acid, lactic acid, gluconic acid, citric acid, mandelic acid, saccharic acid, mucic acid, and tartaric acid, wherein the polyhydroxycarboxylic acid hydrolyzes at a temperature ranging from about 150° F. to about 170° F.;
- hydrolyzing the polyhydroxycarboxylic acid;
- and
- degrading at least a portion of the filtercake.
2 more elements
A method comprising:
- running a sand control screen assembly to a selected depth within the uncased section of the wellbore to facilitate a gravel packing operation;
- and
- introducing a gravel pack slurry comprising polyhydroxycarboxylic acid into the wellbore to facilitate gravel packing operations, wherein the polyhydroxycarboxylic acid is a polymer formed from one or more monomers selected from a group consisting of malic acid, lactic acid, gluconic acid, citric acid, mandelic acid, saccharic acid, mucic acid, and tartaric acid, wherein the polyhydroxycarboxylic acid hydrolyzes at a temperature ranging from about 150° F. to about 170° F.
Dependencies are inferred from the claim text.