Determination of closing point for sand fracturing

These effects on sand fracturing must be taken into account carefully.

Of theⅢtype reservoir of Majiagou carbonate rock of down Paleozoic Ordovician in Jinbian gas field, filling content of pore is high , its permeability is low and treatment effect of acidizing reform is not good, so adding sand fracture is suggested.

The tech of adding sand fracture treatment in carbonate reservoir is on the process of exploring in domestic and abroad which has not rich experience for reference.

Field test in four wells and theoretical research for adding sand fracture to carbonate reservoir hand been conducted from 2001 to 2002,which prevent the limitation of gap length by acid erosion and prolonged gap length and achieved a re.

So the author in this paper researches and develops the fracturing sand control technology to solve the problem.

Five wells had been carried out the fracturing sand controlling test in 2005,and achieved good increase production results,which also provided a reference for s.

After analysis,reservoir bed and construction problems are factors to cause sand plugging after fracturing.

Research on sand production prediction in screen out fracturing well;