Criteria for recognition of bedding structures utilizing imaging devices

Conference · Sat Sep 01 04:00:00 EDT 1990 · AAPG Bulletin (American Association of Petroleum Geologists); (USA)

OSTI ID:5923104

Fett, T ^[1]

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1. Schlumberger Well Services, Houston, TX (USA)

Wireline logs, especially dipmeter imaging devices, can bridge the gap between the wealth of outcrop and recent information about bedding structures and the immense data base available from mineral industry boreholes. The recognition of bedding structures as observed in ancient and recent exposures is not always straightforward with wireline measurements. A major strength of outcrop studies is their two- and sometimes three-dimensional aspect and the availability of very fine details. A strength of wireline measurements is their great abundance. Wireline logs provide a variety of petrophysical information, including lithology The dipmeter provides much finer detail (down to 1 cm or less in the case of imaging devices) and the information is three-dimensional. With remarkable detail, the microresistivity imaging devices can delineate and precisely orient bedding surfaces and hence bedding structures. The nature of contacts (abrupt, tangential) and of surfaces (planar, wavy), as well as the size and shape of objects are routinely available. Lithology, texture, and other sedimentary features such as cross-bedding (trough and planar), slumping, bioturbation, graded beds, erosional contacts, lag, etc., are seen. Image workstations are greatly facilitating the recognition of bedding structures from wireline microresistivity images. The synergistic merging of the wealth of information available from field studies with this type of quantitative detail, available from boreholes, offers great opportunity for defining sedimentary structures and depositional environments and hence for delineating reservoirs.

• OSTI ID: 5923104
• Report Number(s): CONF-9010204--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Journal Volume: 74:9
• 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
58 GEOSCIENCES
580000 -- Geosciences
DEPOSITION
ELECTRIC LOGGING
EVALUATION
EXPLORATION
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
IMAGE PROCESSING
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PROCESSING
RESERVOIR ROCK
RESISTIVITY LOGGING
RESOURCES
WELL LOGGING