US 11,753,931 B2
Tool string failure control in a bottom hole assembly
Jianying Chu, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jun. 27, 2018, as Appl. No. 16/19,731.
Prior Publication US 2020/0003047 A1, Jan. 2, 2020
Int. Cl. E21B 47/13 (2012.01); H04L 12/40 (2006.01); E21B 47/18 (2012.01)
CPC E21B 47/13 (2020.05) [H04L 12/40 (2013.01); E21B 47/18 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method, comprising:
detecting a failure has occurred in a bus section in a tool string used in a bottom hole assembly (BHA) positioned in a borehole; and
in response to detecting the failure,
isolating the bus section by disconnecting the bus section at a first node of the tool string from a first side of the bus section and disconnecting the bus section at a second node of the tool string from a second side of the bus section that is below the bus section relative to the surface of the borehole, wherein isolating the bus section creates a first sub-bus on the first side comprising the first node and a second sub-bus on the second side comprising the second node;
operating the first sub-bus independently of the second sub-bus;
communicating the signals from the first sub-bus to the surface of the borehole with a first telemetry; and
communicating the signals from the second sub-bus to the surface of the borehole with a second telemetry.