Control of particulate flowback in subterranean wells
AssigneeDowell Schlumberger Incorporated
InventorsRoger J. Card, Paul R. Howard, Jean-Pierre Feraud
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Abstract
The addition of fibrous materials in intimate mixture with particulates for fracturing and gravel packing decreases or eliminates the flowback of proppant and/or formation fines while stabilizing the sand pack and lowering the demand for high polymer loadings in the placement fluids. Preferred fibers include glass, aramide, nylon and other natural and synthetic organic and inorganic fibers and metal filaments.
Claims22
Method of treating a subterranean formation penetrated by a wellbore comprising the steps of providing fluid suspension including a mixture of a particulate material and a fibrous material;
- pumping the fluid suspension including a mixture of the particulate material and the fibrous material through the wellbore and depositing the mixture of particulate material and fibrous material in the subterranean formation.
In a subterranean formation penetrated by a wellbore, a porous pack comprising a particulate material having a size in the range of 10 to 100 U.S. mesh in intimate mixture with a fibrous material.
Dependencies are inferred from the claim text.