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US 2016/0108713 A1Published application
System and method of treating a subterranean formation
AssigneeSchlumberger Technology Corporation
InventorsAnna Dunaeva, Bruno Lecerf, Dmitriy Usoltsev, Chad Kraemer
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Abstract
A method and system for treating a subterranean formation, relating to a diluted stream of carrier fibers, and a high-loading stream of a diverting agent, and their use in a downhole diversion operation.
Claims33
A treatment method, comprising:
- introducing a diluted stream, comprising a non-bridging amount of carrier fibers in a low viscosity carrier fluid, into a high pressure flow line;
- adding proppant to the diluted stream to form a proppant-laden stream;
- injecting the proppant-laden stream from the high pressure flow line into a first fracture;
- introducing a high-loading stream, comprising a diverting agent, into the high pressure flow line to combine with the diluted stream to form a diversion slurry;
- delivering the diversion slurry from the high pressure flow line to the first fracture to divert fluid flow to a second fracture;
- and
- injecting the proppant-laden stream from the high pressure flow line into the second fracture.
4 more elements
A treatment method, comprising:
- introducing a diluted stream, comprising a non-bridging amount of carrier fibers, from a diluted fluid device to a high pressure flow line;
- introducing a high-loading stream, comprising a mix of bridging fibers and manufactured shape particles, from a high-loading fluid device to the high pressure flow line;
- combining the diluted stream and the high-loading stream to form a diversion slurry;
- delivering the diversion slurry from the high pressure flow line to a downhole fluid flow feature to divert fluid flow from the downhole fluid flow feature to an alternate flow path.
1 more element
A treatment method, comprising:
- injecting a treatment fluid through a high pressure flow line into the subterranean formation to form a hydraulic fracture system, wherein the treatment fluid comprises:
- a low viscosity carrier fluid having a viscosity less than 50 mPa-s at a shear rate of 170 s-1 and a temperature of 25° C.;
- proppant dispersed in the carrier fluid;
- and
- carrier fiber dispersed in the carrier fluid;
- maintaining a rate of the injection of the treatment fluid to avoid bridging in the wellbore;
- introducing a diluted stream, comprising a non-bridging amount of the carrier fibers and optionally free of the proppant, to the high pressure flow line;
- introducing a high-loading stream, comprising a mix of bridging fibers and manufactured shape particles, to the high pressure flow line;
- combining the diluted stream and the high-loading stream to form a diversion slurry, delivering the diversion slurry from the high pressure flow line to the hydraulic fracture system to divert fluid flow from one fracture to another.
6 more elements
A system for injecting a treatment fluid, comprising:
- at least one diluted fluid device that transports a diluted stream to a high pressure flow line;
- at least one high-loading device that transports a high-loading stream to the high pressure flow line to combine with the diluted stream to form a diversion slurry;
- and
- a flow path for the diversion slurry to a downhole feature.
1 more element
Dependencies are inferred from the claim text.