US 12,140,518 B2
Sample preparation pressure-volume-temperature (PVT) cell for viscosity sample preparation with electromagnetic viscometer (EMV)
Egbukole Okechukwu, Dhahran (SA); Fawaz M. Al-Otaibi, Dhahran (SA); and Daryl Sean Sequeira, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Mar. 16, 2023, as Appl. No. 18/185,084.
Prior Publication US 2024/0310263 A1, Sep. 19, 2024
Int. Cl. E21B 49/08 (2006.01); G01N 11/16 (2006.01); G01N 11/00 (2006.01)
CPC G01N 11/16 (2013.01) [E21B 49/08 (2013.01); G01N 2011/0086 (2013.01)] 15 Claims
OG exemplary drawing
 
10. A method for determining viscosity of a fluid using a pressure-volume-temperature (PVT) electromagnetic viscometer (EMV) system, comprising:
receiving, by a sample preparation cell disposed within the PVT EMV system, the fluid from a fluid supply reservoir;
adjusting, under control of a controller configured to operate the sample preparation cell, temperature system, and EMV, a temperature of a temperature control chamber disposed within the PVT EMV system using the temperature system;
executing, for each set pressure in a plurality of set pressures, the following steps, wherein each set pressure in the plurality of set pressures is below a bubble point pressure of the fluid:
adjusting a pressure of the fluid in the sample preparation cell to the set pressure,
homogenizing the fluid by stirring the fluid with a stirrer disposed within the sample preparation cell,
degassing the fluid by removing released gases from the sample preparation cell though a venting fluid line in fluid communication with the sample preparation cell and a gas capturing system configured to remove released gases from the sample preparation cell,
transporting a volume of the fluid from the sample preparation cell to the EMV,
measuring the viscosity of the volume of the fluid in the EMV,
transmitting the viscosity measurement to the controller, and
removing the volume of the fluid from the EMV; and
planning a wellbore to penetrate a hydrocarbon reservoir based on the measured viscosities,
wherein the planned wellbore comprises a planned wellbore path.