US 12,116,883 B2
Annulus pressure monitoring, reporting, and control system for hydrocarbon wells
Mohammed K. Mugharbil, Al Khobar (SA); Ahmad Muhammad, Abqaiq (SA); and Mohammed H. Malki, Dammam (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 11, 2023, as Appl. No. 18/095,766.
Prior Publication US 2024/0229640 A1, Jul. 11, 2024
Int. Cl. E21B 47/06 (2012.01); E21B 47/117 (2012.01)
CPC E21B 47/06 (2013.01) [E21B 47/117 (2020.05); E21B 2200/20 (2020.05); E21B 2200/22 (2020.05)] 18 Claims
OG exemplary drawing
 
1. A method for monitoring pressure in hydrocarbon wells for controlling operation of the hydrocarbon well, the method comprising:
receiving pressure data for a well, the pressure data comprising values of a pressure in a well annulus over a period of time for a set of wells;
identifying one or more anomalies in the pressure data by comparing the values of the pressure to threshold values, the one or more anomalies in the pressure data representing an anomalous pressure condition for the well;
determining, based on the one or more anomalies, a failure factor for each of one or more wells associated with the one or more anomalies;
wherein the one or more anomalies comprise at least one of a zero pressure in a tubing casing annulus (TCA) of a well under a flowing condition, a pressure over a maximum threshold pressure in the TCA, a casing-casing annulus (CCA) pressure that exceeds a threshold, and an equal tubing and TCA pressure when the well is shut-in;
predicting, based on the failure factor, a point in time in a pressure cycle of each of the one or more wells for occurrence of the one or more anomalies in the pressure data for each of the one or more wells.