The movement simulation of solid particle and the erosion characteristics of the solid-liquid two-phase fluid in flow controller under hydraulic sand fracturing operation showed that the particles were accumulated in a narrow region from inlet to outlet of the flow controller.

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.

The Difficulties and Measures of the Hydraulic Fracturing about Volcanic Rock Reservoir;

Finite element simulation of dynamic fracture in hydraulic fracturing;

Optimization of hydraulic fracturing technology for thin interbeds in Sha4 member of Liangll2 block;

Application of the borehole-to surface electric potential image technique to monitoring hydraulic fractures of coalbed methane;

Analysis of start-split characteristic of hydraulic fracture bore;

The hydraulic fracture stimulation for pilot wells located in Xinji Coal Area;