US 11,814,952 B2
System and method to measure changes in the mud level and gas properties when drilling through a total loss zone with no returns to surface
Krzysztof Karol Machocki, Aberdeen (GB)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Nov. 30, 2021, as Appl. No. 17/538,644.
Prior Publication US 2023/0167736 A1, Jun. 1, 2023
Int. Cl. E21B 47/08 (2012.01); E21B 21/08 (2006.01); E21B 47/047 (2012.01); E21B 47/06 (2012.01); E21B 47/003 (2012.01); E21B 33/064 (2006.01)
CPC E21B 47/08 (2013.01) [E21B 21/08 (2013.01); E21B 47/047 (2020.05); E21B 47/06 (2013.01); E21B 33/064 (2013.01); E21B 47/003 (2020.05)] 10 Claims
OG exemplary drawing
 
1. A system for an annulus, the system comprising:
a bell nipple having an inner diameter;
an influx device comprising a tubular body having a top end, a bottom end, and an outer circumferential surface, wherein the bottom end has an outer diameter smaller than the inner diameter of the bell nipple;
a pumping port entrance and a measuring port exit installed to the top end of the tubular body;
a pumping port exit and a measuring port entrance installed to the bottom end of the tubular body, wherein the pumping port exit is disposed within the annulus;
a gas measuring device connected to the measuring port exit; and
an opening machined proximate the bottom end of the tubular body, wherein the measuring port entrance is disposed adjacent to the opening.