Tracers for petroleum reservoirs

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United States of America Patent

PATENT NO 12077504
APP PUB NO 20230184099A1
SERIAL NO

18162495

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Abstract

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The disclosure features methods of analyzing a fluid extracted from a reservoir, the methods including introducing a first composition featuring a first complexing agent into a reservoir at a first location, extracting a fluid from the reservoir at a second location different from the first location, combining the fluid with a second composition featuring a concentration of a lanthanide ion to form a third composition featuring a concentration of a complex formed by the first complexing agent and the lanthanide ion, exposing a quantity of the complex to electromagnetic radiation for a first time period ending at a time to, detecting fluorescence emission from the quantity of the complex for a second time period starting at a time t1>t0, where t1−t0 is greater than 2 microseconds, and determining information about a fluid flow path between the first location and the second location.

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Patent Owner(s)

Patent OwnerAddress
SAUDI ARABIAN OIL COMPANYP O BOX 5000 DHAHRAN 31311 31311

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Sehoon Cambridge, US 41 103
Cox, Jason R Ashland, US 48 389
Ow, Hooisweng Woburn, US 57 2993
Shi, Rena Cambridge, US 9 52

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