Casing exit systems are used to sidetrack a wellbore for many reasons, including re-entry of an existing wellbore, drilling a bottomhole assembly that has become stuck and is too costly to fish out, severe formation or drilling problems, the need to change the direction of a wellbore, or the need to drill multiple exits from a single wellbore.

 

Big Rig one-mill casing exit system is retrievable and has two retrieval tool options to accommodate severe hole conditions. A complete system includes a whipstock combination, an orientation device, an anchoring device, and a milling tool. This system provides a quicker kickoff with a higher build rate in short-radius drilling applications. Decreased length of the whipstock and a milling assembly consisting of only one multi-section mill form a significantly shorter window exit bottomhole assembly (BHA). The reduced-length BHA is capable of passing through higher doglegs in the wellbore. Our whipstock system provides an effective means to exit casing and provide a window to run drilling BHA, liners, and completion equipment through.

 

Big Rig field-proven Lock and Orientation Combination includes drill string tool joint, locking sub, orientation plug and orientation sleeve. This combination also functions as the deployment tool to set our Inflatable Bottom Anchor.