Ultra-high pulse power acoustic logging with broad-band-width, low-frequency, and multipole transmitters and receivers - A discussion of data and analysis for a variety of interpretive techniques

Conference · Fri Feb 01 04:00:00 EST 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:5220329

Husten, P; Patterson, D; Watson, J; Gill, S; Volk, B ^[1]

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1. Magnetic Plus Incorporated, Fremont, CA (United States)

Current technology of acoustic logging has been limited to monopole and dipole sources and receivers. The shear wave can be accurately recorded with this technique but has inferior results in softer formations. We present a method for acoustic logging with many magnitudes times the power of conventional technology for improved depth of investigation, and improved signal in soft formations. The technique uses electromagnetically driven acoustic transmitters to generate a broad-band-width signal. The formation propagates a particular frequency depending on how hard or soft the rock. This ensures that a strong first arrival of shear wave is identified by the receivers. in addition to monopole and dipole, quadrupole transmitters and receivers are used in the configuration for logging through casing. The authors present examples for hard, soft, and very soft formation from monopole, dipole, and quadrupole sources both in open hole and cased hole. Interpretive techniques are applied to this data for the evaluation of porosity, rock mechanical properties, fracture detection, fracture prediction, correlation to shear seismic data, and hydrocarbon indication in clastics.

• OSTI ID: 5220329
• Report Number(s): CONF-9103128--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 75:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
440400 -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
DATA ANALYSIS
EQUIPMENT
EXPLORATION
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PERFORMANCE TESTING
PETROLEUM DEPOSITS
RESOURCES
SEISMIC S WAVES
SEISMIC WAVES
SONIC LOGGING
TESTING
WELL LOGGING
WELL LOGGING EQUIPMENT