Paper: Deep Penetration Completion Techniques Using Liquid Jet Cutting

Two methods that employ a pumping system operating at 10,000 psi (69 MPa) and 20 to 30 gpm (.08 to .12 m3/min) to penetrate through well casing and radially into the formation up to 10 ft will be described. This is a downhole application of liquid jet cutting technology that is also used in mining, manufacturing, and industrial cleaning. The processes utilize a clean completion fluid, compatible with the formation of interest, to mechanically cut through the well casing and then jet cut or erode a tunnel out into the formation. Depth of penetration depends upon the type of tool used and the type of formation encountered. A description of the equipment, operation procedures and applications will be covered.