PLASTIC FRACK TRACER

摘要

Novel proppants, proppant mixes and proppant slurries comprising a diamagnetic polymeric proppant that exhibits induced paramagnetism in an AC field is used to prop hydraulic fractures, and the paramagnetism used to assess fracture width, depth, connectivity, branching and the like. Fracturing methods are also provided, together with fracture assessment and imaging methods.

主权项

1) A method of assessing hydraulic fracturing in a reservoir, said method comprising:
b) injecting a fracturing fluid into a reservoir at a pressure sufficient to fracture said reservoir producing fractures; c) injecting a proppant into said fractures, said proppant comprising a polymeric material that becomes paramagnetic when exposed to an alternating current (AC) field; d) applying an AC magnetic field to said fractures to induce paramagnetism in said proppants; and e) detecting said induced paramagnetism to assess said fractures.