Abstract
The contemporaneous presentation of river channel, sand body and mud on the seismic attribution slice is the research that seismogeology personnel desire to realize. Especially at the oil field development stage, the research is very important to deploy the location of injection and production well. This paper takes A oil field, Bohai Bay area as the target region, on the basis of negative 90 degree rotation data volume, selects out the best Algorithm to depict river channel and sand body precisely and realizes the river and sand attributes data fusion. Based on this, the relationship between river, sand and mud were contemporaneously presented. Through combined research on well data, it verifies that the profile and slice of seismic data are in accord with well data. Based on this technology, the development and evolution of river channel and the internal structure of point bar were studied, and the historical evolution process of meander river channel was recovered, which provides a strong basis for residual oil research and high production adjusting well deployment.
Highlights
Large well spacing and relatively lack of well data is the major features of offshore oilfield, so in-depth application of seismic data to carry out reservoir fine research becomes an important technical means
In recent years, seismic datas have been widely used in the development of offshore oil fields, such as seismic data combined with production dynamic data to study reservoir configuration, the use of coherent technology and seismic attributes to fine study the distribution of river channel, lateral accretion sand bodies and single point bars, so as to improve the reliability of reservoir research
According to the idea of river and sand fusion, this paper focus on the integration display of river and sand in order to realize the simultaneous display of river sand and mud, to achieve a visual understanding of the underground geological condition, and to provide a reliable basis for the optimization of well position
Summary
Large well spacing and relatively lack of well data is the major features of offshore oilfield, so in-depth application of seismic data to carry out reservoir fine research becomes an important technical means. In recent years, seismic datas have been widely used in the development of offshore oil fields, such as seismic data combined with production dynamic data to study reservoir configuration, the use of coherent technology and seismic attributes to fine study the distribution of river channel, lateral accretion sand bodies and single point bars, so as to improve the reliability of reservoir research. It is of great significance and application value to guide oilfield development plan and to excavate the potential of remaining oil in old oilfields. International Journal of Oil, Gas and Coal Engineering 2018; 6(5): 102-109 of river sand mud contemporaneously
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