Methods of preventing the flow-back of particulates...

Details Methods of preventing the flow-back of particulates... Methods of preventing the flow-back of particulates...

2005-04-12

2005-04-12

Neuder, William (Department: 3672)

Wells

Processes

Providing porous mass of adhered filter material in well

C166S280100, C166S308100

Reexamination Certificate

active

06877560

ABSTRACT:
Improved methods of preventing the flow-back of particulates deposited in subterranean formations with produced formation fluids are provided. The methods include extruding or injecting a solution or mixture of a particulate solid polymer through a plurality of small diameter ports into an aqueous carrier fluid containing suspended particulate material whereby polymer fibers and strands are formed in the carrier fluid. The polymer fibers and strands mix with the particulate material suspended in the carrier fluid as the carrier fluid is pumped into the subterranean formation. The mixture of the particulate material and the polymer fibers and strands is deposited in the subterranean formation so that the mixture forms at least one permeable pack that prevents the production of formation fines with fluids produced from the formation and prevents the flow-back of the deposited particulate solids, fibers or strands.

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