Wells – Processes – Specific propping feature
Reexamination Certificate
2006-01-27
2011-11-22
Suchfield, George (Department: 3676)
Wells
Processes
Specific propping feature
C166S280100, C166S281000, C507S924000
Reexamination Certificate
active
08061424
ABSTRACT:
The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracturcconductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid.
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Kosarev Ivan Vitalievich
Miller Matthew J.
Thiercelin Marc Jean
Willberg Dean M.
Cate David
Griffin Jeffrey
Nava Robin
Schlumberger Technology Corporation
Suchfield George
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