Methods and compositions for controlling lost circulation in subterranean operations
AssigneeHalliburton Energy Services, Inc.
InventorsB. Raghava Reddy, Donald L. Whitfill, Krishna M. Ravi, Mark R. Savery
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AssigneeHalliburton Energy Services, Inc.
InventorsB. Raghava Reddy, Donald L. Whitfill, Krishna M. Ravi, Mark R. Savery
Estimating the term…
A lost circulation composition, that comprises a first portion of particles having a weight mean particle size of less than about 20 microns, a second portion of particles having a weight mean particle size in the range of from about 25 microns to about 400 microns, and a third portion of particles having a weight mean particle size in the range of from about 450 microns to about 1,500 microns, wherein the lost circulation composition has a multimodal particle size distribution, is provided, wherein resilient particles, particles comprising a thermoset polymer laminate, or a combination thereof are present in the lost circulation composition in an amount of at least about 20% by weight of the lost circulation composition, is provided. Drilling fluids, methods of controlling lost circulation, and methods of increasing an effective fracture gradient while drilling also are provided.
A method of controlling lost circulation comprising contacting a lost circulation zone in a subterranean formation with a lost circulation composition having at least a trimodal particle size distribution, the lost circulation composition comprising:
A method of controlling lost circulation comprising adding to a fluid a lost circulation composition having at least a trimodal particle size distribution, the lost circulation composition comprising:
A method of increasing an effective fracture gradient in a portion of a subterranean formation while drilling a well bore that penetrates the portion of the subterranean formation, the method comprising:
A method of controlling lost circulation comprising:
Dependencies are inferred from the claim text.