FRACTURING TECHNOLOGY WITH ALTERATION DISCHARGE CAPACITY AND IT’S FIELD APPLICATION

A fracturing technology with alteration discharge capacity was put forward, it’s mechanism and application condition was probed. It was acknowledged that through the instantaneous alteration of discharge capacity, the proppant could be send to deeper and the fracturing could be supported longer at the same time the height of fracturing was controlled. The near wellbore area oil resistance force was decreased after the cuneiform sand body was force with quickly enhanced sand fluid ratio. The application effect of 13 wells in Changqing Oil Field indicated that the crude output was increased 83.31 percent. This technology has a sample field operator step and a remarkable increase productivity benefit. The technology is a valid increase productivity measure in thin layer with smaller stress producing formation and intercalation and in reservoir with bottom water.