METHOD OF ENHANCING CONDUCTIVITY FROM POST FRAC CHANNEL FORMATION

• Main Authors: NELSON SCOTT GREGORY, GOMAA AHMED M
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2018
• Subjects: ADHESIVES; CHEMISTRY; DYES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PAINTS; POLISHES

A method of enhancing conductivity within a hydrocarbon-bearing reservoir by building proppant pillars in a spatial arrangement in fractures created or enlarged in the reservoir. Two fluids of differing viscosity and stability are simultaneously pumped into the reservoir. The fluids contain identical proppants which include a proppant which is neutrally buoyant in the fluid and a proppant which isnot neutrally buoyant in the fluid. Vertically extending pillars are created within the formation when the fluids are destabilized and the heavier proppant is then released from the destabilized fluids. The area between the pillars may be held open by the presence of the neutrally buoyant proppant in the remaining fluid. Fluid produced from the hydrocarbon-bearing reservoir is then flowed at least partially through channels between the vertically extending pillars. 种通过在储层中产生或扩大的裂缝中，以空间布置形式构建支撑剂支柱来提高含烃储层内的导流能力的方法。将不同粘度和稳定性的两种流体同时泵入所述储层中。所述流体含有相同的支撑剂，所述支撑剂包含平衡悬浮于所述流体中的支撑剂和不平衡悬浮于所述流体中的支撑剂。当所述流体不稳定时，在地层内产生垂直延伸的支柱，然后从所述不稳