Reasons for Maximum Displacement of Continuous Tubing Drag Fracturing

The maximum displacement of continuous tubing drag fracturing depends on the tool's own erosion resistance, tool strength, borehole size and other aspects:

Tool's erosion resistance: during fracturing, the high-concentration fracturing sand enters into the formation under high-speed flow, which produces large erosion in the joints of the continuous tubing tool, the corralling device and the reducer of the tool string, and the tool can be accelerated if it does not have erosion-resistant coating. If there is no erosion-resistant coating, it will accelerate the erosion of the tool.

Tool strength: In the process of large-displacement fracturing, affected by the construction displacement and pressure, the tool packer will be subjected to a large axial load, and the load will be applied to the tool string and the casing of the construction wells. If the construction displacement is not reasonably controlled, it may cause structural damage to the tool, and it may also cause the casing's casing to be altered, which may affect the normal lifting of the tool, and result in the tool stopping and falling into the wells.

Reasonable injection parameters can ensure a reasonable borehole size, if the shot hole borehole size is too small, there will be a large pressure drop here, and it will not be possible to realize large displacement fracturing construction.

Yantai Land Prospector Petroleum Technology Co., Ltd. has mature products and related technologies after years of tool research and development, welcome to inquire.