US 11,808,097 B2
Flow rate pressure control during mill-out operations
Richard Morrison, Sugar Land, TX (US); Sascha Trummer, Richmond, TX (US); Luis Silva, Richmond, TX (US); and Zhanke Liu, Sugar Land, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on May 20, 2020, as Appl. No. 16/878,762.
Claims priority of provisional application 62/924,744, filed on Oct. 23, 2019.
Claims priority of provisional application 62/850,051, filed on May 20, 2019.
Claims priority of provisional application 62/850,084, filed on May 20, 2019.
Prior Publication US 2020/0370379 A1, Nov. 26, 2020
Int. Cl. E21B 3/02 (2006.01); E21B 10/44 (2006.01); E21B 17/20 (2006.01); E21B 19/22 (2006.01); E21B 47/12 (2012.01); E21B 17/04 (2006.01)
CPC E21B 19/22 (2013.01) [E21B 10/44 (2013.01); E21B 17/20 (2013.01); E21B 47/12 (2013.01); E21B 3/02 (2013.01); E21B 17/041 (2020.05)] 13 Claims
OG exemplary drawing
 
1. A method, comprising:
deploying a downhole well tool comprising a milling tool into a wellbore of a well via coiled tubing utilizing a coiled tubing unit, wherein the coiled tubing unit comprises an injector head for controlling a weight of the coiled tubing while deploying the milling tool;
using the milling tool to mill a plurality of plugs positioned along the wellbore;
detecting one or more surface parameters via one or more surface sensors associated with surface equipment located at a surface of the well;
processing, via a surface processing system, the one or more detected surface parameters during operation of the downhole well tool, wherein processing the one or more detected surface parameters comprises analyzing the one or more detected surface parameters with respect to data relating to previous milling operations; and
automatically adjusting one or more operational parameters of the surface equipment based at least in part on the one or more detected surface parameters, wherein the one or more operational parameters comprise the weight of the coiled tubing.