Wells – Processes – Separate steps of fracturing or attacking formation
Patent
1982-04-07
1984-10-23
Novosad, Stephen J.
Wells
Processes
Separate steps of fracturing or attacking formation
166308, 166280, E21B 43267
Patent
active
044782829
ABSTRACT:
To control adverse vertical height growth of the fracture created during hydraulic fracturing treatments of subterranean formations, a nonproppant fluid stage is injected during the treatment. The nonproppant stage comprises a transport fluid and a flow block material. The flow block material can be any particulate used as a fracture proppant, and has a particle size distribution which is sufficient to form a substantially impermeable barrier to fluid flow into the vertical extremities of the fracture. The particle size distribution preferably comprises at least two different particles sizes.
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Plugging Thief Zones in Water Injetion Wells, Robertson, Jr. et al., 1967, Journal of Petroleum Tech.
Nolte Kenneth G.
Smith Michael B.
Brown Scott H.
Hook Fred E.
Neuder William P.
Novosad Stephen J.
The Standard Oil Company
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