Analysis method of cluster perforating tubing strings trafficability in horizontal wells for unconventional reservoirs

The feasibility of a normal perforating operation depends on the tubing string, which is main component cluster tool for exploration and development unconventional oil&gas reservoirs. To improve efficiency perforation in horizontal wells, passing capability analysis model string wellbore was established, thereby generating complex equations with coefficients that are solved via geometric analyses beam-column theory. This based comprehensive consideration friction between downhole tools borehole wall, fluid resistance, constraint, pump thrust, axial tension, variable cross-section, tension cable head, elastic deformation. Based field test data, pass-through capacity “1 bridge plug + 4 gun string” X206 well factors affecting ability were analyzed to validity model. presented this paper can provide an effective analyzing design string.