초록 ▼

A process for hydraulic fracturing where a fracturing fluid contains a clay stabilizing agent. Said agent stabilizes clay particles or fines along the face of a resulting formation fracture. Thereafter a fused refractory proppant is injected into the fracture. The proppant increases thermal conducti

A process for hydraulic fracturing where a fracturing fluid contains a clay stabilizing agent. Said agent stabilizes clay particles or fines along the face of a resulting formation fracture. Thereafter a fused refractory proppant is injected into the fracture. The proppant increases thermal conductivity during a steam-flooding oil recovery method while controlling clay particles and sand.

대표청구항 ▼

A sand control and heat transfer method for use in a borehole having an unconsolidated or loosely consolidated oil or gas reservoir which is otherwise likely to introduce substantial amounts of sand into the borehole, comprising: (a) providing a borehole casing through said reservoir; (b) perforatin

A sand control and heat transfer method for use in a borehole having an unconsolidated or loosely consolidated oil or gas reservoir which is otherwise likely to introduce substantial amounts of sand into the borehole, comprising: (a) providing a borehole casing through said reservoir; (b) perforating said casing at preselected intervals therealong to form at least one set of longitudinal, in-line perforations; (c) hydraulically fracturing said reservoir by injecting a fracturing fluid containing a fine grain fused refractory material which comprises substantially silicon carbide or silicon nitride, and a clay stabilizing agent through said perforations at a volume and rate sufficient to allow said stabilizing agent to penetrate the fracture face along its entire length at a depth sufficient to overcome the effects of fluid velocity increases in oil or gas production flow on the movement of clay particles or fines located near the fracture face into the fracture as production flow linearly approaches said fracture face; (d) injecting a proppant comprising a gravel packing fused refractory material comprised substantially of silicon carbide or silicon nitride into said fracture so that said gravel packing material pushes said fine grain refractory material up against the face of the fractured reservoir, whereby a first layer of fine grain fused refractory material is held in place along the entire face of said fracture by a second layer of gravel packing fused refractory material also extending along the entire length of said fracture thereby excluding fines; and (e) producing oil or gas from said reservoir through said fracture into said borehole casing via a thermal oil recovery method which proppant and layers provide for increased heat transfer into said formation.