Deviated-well seismic data and the application

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Oil Geophysical Prospecting; (China)

OSTI ID:5508239

Jisong, C ^[1]

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1. Computer Center, Bohai Oil Corp., P.O. Box 514, Tanggu, Tianjin City (CN)

This paper reports on geological drillers which often use deviated-well technology to make an exploratory well penetrate several targets which do not lie in same vertical direction. In order to correlate deviated- well data with seismic section, people should do the following processings of deviated-well data. The deviated- well projection positions on adjacent seismic sections are determined by using deviated-well data, formation dip angle and formation dip direction, the position being usually described with vertical depth and deviation. The record depths of samples of each logging curve must be converted into the vertical depths in a relevant seismic section. Synthetic seismogram is made by using depth-converted sonic and density logging data. The synthetic seismogram whose amplitude are multiplied by a proper factor is stacked with the deviation of the deviated-well-projection on a seismic section. The synthetic seismogram is displayed in the same scale the seismic section uses, so that it can be correlated with the seismic section. Other logging data of deviated well, such as apparent resistivity curve, natural potential curve and natural gamma curve, also can be correlated with seismic section by stacking them with the deviation of deviated-well projection on seismic section.

• OSTI ID: 5508239
• Journal Information: Oil Geophysical Prospecting; (China), Journal Name: Oil Geophysical Prospecting; (China) Vol. 26:6; ISSN SDWKE; ISSN 1000-7210
• Country of Publication: United States
• Language: Chinese

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
29 ENERGY PLANNING, POLICY, AND ECONOMY
294002 -- Energy Planning & Policy-- Petroleum
ASIA
CHINA
DATA PROCESSING
DRILLING
EXPLORATORY WELLS
GEOLOGIC DEPOSITS
GEOLOGY
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
OIL FIELDS
PETROLEUM DEPOSITS
PETROLEUM GEOLOGY
PLANNING
PROCESSING
RESOURCE DEVELOPMENT
RESOURCES
SEISMIC SURVEYS
SURVEYS
WELL DRILLING
WELLS