US 12,473,788 B2
Downhole tool for automatic tubular cutting
Adam Cygan, Sugar Land, TX (US); David Engel, Larose, LA (US); Joseph Casassa, Sugar Land, TX (US); Michael Vince, Katy, TX (US); Todor Sheiretov, Houston, TX (US); Maxim Klyuzhev, Houston, TX (US); Juan Jose Jaramillo, Stonehouse (GB); Benjamin Jean Yvon Durand, Houston, TX (US); and Maxim Gurevich, Palo Alto, CA (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/725,343
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Mar. 9, 2023, PCT No. PCT/US2023/014873
§ 371(c)(1), (2) Date Jun. 28, 2024,
PCT Pub. No. WO2023/172666, PCT Pub. Date Sep. 14, 2023.
Claims priority of provisional application 63/269,083, filed on Mar. 9, 2022.
Prior Publication US 2025/0075579 A1, Mar. 6, 2025
Int. Cl. E21B 29/00 (2006.01); E21B 23/01 (2006.01)
CPC E21B 29/005 (2013.01) [E21B 23/01 (2013.01); E21B 29/007 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for cutting tubing in a wellbore, comprising:
causing anchor arms of an anchor module to extend outward to an inner wall of tubing;
rotating a cutting head with an orientation coincident to an axis of the tubing, wherein the cutting head includes a plurality of cutting elements, wherein the anchor module is positioned above the cutting head instead the wellbore;
forcing the cutting elements outward using an actuation mechanism to form a cut in the tubing, wherein the actuation mechanism is connected to a pressurized piston disposed within a piston housing, wherein the cutting elements gradually expand radially as material of the tubing is cut away;
determining a depth of the cut made by the cutting elements based upon pressure pulses, wherein the pressurized piston includes a radially protruding detent and an inner surface of the piston housing includes an actuation profile including one or more ridges, and wherein the pressure pulses are generated by the detent overcoming the one or more ridges; and
adjusting hydraulic pressure to the cutting head based on torque feedback of the cutting elements.