Encapsulations for treating subterranean formations and methods

Details Encapsulations for treating subterranean formations and methods Encapsulations for treating subterranean formations and methods

1990-12-06

1992-11-17

Stoll, Robert L.

Compositions

Leather or fur treating

252 8554, 42840224, 428408, 166300, 166308, E21B 4326

Patent

active

051640996

ABSTRACT:
Encapsulations comprised of a breaker enclosed within a membrane are utilized to break fluids used to fracture subterranean formations. The membrane of the encapsulation is permeable to at least one fluid in the subterranean formation or injected with the breaker such that the breaker diffuses through the membrane into the fracturing fluid. Thus, controlled amounts of breaker are released into the fracturing fluid.

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M. T. King et al., "Encapsulated Breaker For Aqueous Polymer Fluids", Paper No. CIM/SPE 90-89, Jun. 1990 International technical meeting of Petroleum Society of CIM/Society of Petroleum Engineers.

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