Method of Completing a Well Using a Friction Reducing Completion Fluid

摘要

A method for reducing the friction forces between tubulars, for example coiled tubing in casing, is disclosed. The method includes mixing a selected suspending agent and surfactant and polymer particles in oil, then adding the mixture to water and pumping the mixture down the tubing. The mixture is particularly useful in coiled tubular drilling inside casing of an oil or gas well. The formulation has also been found to reduce corrosion on metal surfaces.

主权项

1. A method for drilling a bridge plug from casing in a well, comprising:
a) placing tubing in the well, the tubing having a bit at a distal end; b) preparing a liquid mixture containing
i. an oil,ii. a suspending agent,iii. polymer particles,iv. a surfactant to cause the oil to wet the surfaces of the casing and tubing; andv. water; c) pumping the mixture through the tubing and the bit and into an annulus between the tubing and the casing while rotating the bit to drill out the bridge plug.