Fitting solution of wave equation; The optimum seismic migration

Journal Article · Tue Dec 31 23:00:00 EST 1991 · Oil Geophysical Prospecting; (China)

OSTI ID:5469304

Zhenfei, Z ^[1]

---

1. Geophysical Research Inst., Bureau of Oil Geophysical Prospecting, Zhuozhou City, Hebei Province (CN)

This paper presents an optimum fitting solution of wave equation, which is an accurate numerical solution of wave equation that is different from difference solution. A new discretization method is proposed by analyzing difference discretization method. The new discretization method derives a fitting equation from the overall fitting of a partial differential equation whereas difference discretization method forms difference equation by performing difference approximation of each partial differential term in the equation. The difference approximation is called the partial discretization method, and the overall fitting the overall discretization method. Illustration analysis shows that this optimum fitting method applies to various difference migration methods and has the advantage of difference method and higher image accuracy, and that its fitting factor is adaptable to variations of multiple parameters such as sample, velocity, step size and so on. The new method is handy and easy to form different operation schemes.

• OSTI ID: 5469304
• Journal Information: Oil Geophysical Prospecting; (China), Journal Name: Oil Geophysical Prospecting; (China) Vol. 27:2; 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
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ASIA
CHINA
DATA PROCESSING
DIFFERENTIAL EQUATIONS
DISCRETE ORDINATE METHOD
DRILLING
EQUATIONS
GEOPHYSICAL SURVEYS
OPTIMIZATION
PARTIAL DIFFERENTIAL EQUATIONS
PLANNING
PROCESSING
SEISMIC SURVEYS
SEISMIC WAVES
SURVEYS
WAVE EQUATIONS
WELL DRILLING