Patent ID: 11927713
Assignee: CHINA OILFIELD SERVICES LIMITED
Field: Measurement (Instruments)
Classification: CPC G  E | IPC E  G

Claim 0:
1. A method for acquiring logging parameters, wherein the logging parameters comprise a gas-bearing porosity and the method comprises:
acquiring a two-dimensional nuclear magnetic logging analysis graph by utilizing a multi-dimensional nuclear magnetic logging instrument capable of transmitting electromagnetic waves with different frequencies;
determining, by a processor, a gas-bearing region from the two-dimensional nuclear magnetic logging analysis graph; and
summing, by the processor, contour values of the gas-bearing region as the gas-bearing porosity;
wherein the two-dimensional nuclear magnetic logging analysis graph comprises a two-dimensional nuclear magnetic D-T2 graph, and D represents diffusion coefficient and T2 represents transverse relaxation time; and
the two-dimensional nuclear magnetic D-T2 graph comprises the following information: oil-bearing region, gas-bearing region, water-bearing region, oil line, gas line and water line.