A new method of gas-bearing zone identification by well logging

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:7074638

Tan, T

Conventional methods for gas bearing zone identification are based on the comparison of the neutron log porosity to the density log porosity. In low porosity, varying matrix formations the gas detection is often difficult. The method proposed in this paper is a new method which identifies gas bearing zones by using a Difference Ratio of Equivalent Elastic Modulus of formation rock (EDR). The ratio is calculated by the combination of sonic log, density log and neutron log. The method has been used to interpret some sand and carbonate gas reservoirs of China. The results presented in this paper show that higher resolving power of gas bearing zones, better interpretation accuracy, and ''quick look'' estimates can be readily achieved.

• Research Organization: Research Inst. of Petroleum Exploration and Development
• OSTI ID: 7074638
• Report Number(s): CONF-861080-
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030200* -- Natural Gas-- Reserves
Geology
& Exploration
ACCURACY
ASIA
CALCULATION METHODS
CHINA
DENSITY
ELASTICITY
EXPLORATION
EXPLORATORY WELLS
GAMMA-GAMMA LOGGING
GAS SATURATION
GEOLOGIC DEPOSITS
MECHANICAL PROPERTIES
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NEUTRON LOGGING
PHYSICAL PROPERTIES
POROSITY
RADIOACTIVITY LOGGING
RESERVOIR ROCK
RESOURCES
SATURATION
SONIC LOGGING
TENSILE PROPERTIES
WELL LOGGING
WELLS