Application Of Seismic Reservoir Prediction In Oil And Gas Exploration

Seismic attribute refers to by pre-stack and post-stack seismic data,through mathematical transformation of the geometry,kinematics,dynamics,or statistical characteristics of seismic wave.Seismic reflection wave is underground geological interface reflected below,the physical characteristics of underground sedimentary stratum any changes,will cause the formation wave impedance change,lead to lateral changes of the seismic reflection coefficient and the wave characteristics,thus influence seismic wave the change of all kinds of properties,therefore,the seismic attributes are carrying lots of underground geological information,reflect the physical characteristics of sedimentary strata,this is by using seismic attributes the physical basis of auxiliary sedimentary facies analysis.With the rapid development of computer technology,methods for extracting earthquake properties are constantly being discovered,there are as many as hundreds of seismic properties available today,for staff to great difficulties in practical application,urgently need to be from a practical perspective,summarized the seismic attribute parameters and sedimentary strata and the sedimentary system of the internal relation between the characteristic parameters,further study on the seismic information and sedimentary system of the relationship between physical parameters,that is assigned to various geological implications of seismic attributes.In order to achieve this goal,first of all by category to summarize current commonly used seismic attributes,starting from algorithm,expressed by the analysis of various seismic attributes on the physical and mathematical meaning,in combination with geological knowledge,discusses the application of summarizing all kinds of seismic attribute of potential geological,and clear the geological explanation.Seismic attribute extraction technology is extraction,storage,inspection,analysis,recognition,assessment of seismic attributes and the seismic attributes can be converted into a set of method of sedimentary strata.Development and application of seismic data interpretation techniques and to promote the emergence of seismic attributes,the development and application,which leads to the seismic attribute analysis technology has become indispensable to modern oil and gas exploration and development work of conventional technology.Finally using different attributes combination,preferred to predict reservoirs,so that it is applied to the instance,in this paper,by extracting average root-mean-square amplitude,effective bandwidth and instantaneous frequency,zero crossing point and other properties,and through optimization and combination can a town hengjing block ch81 is predicted lithologic reservoir properties,guiding significance to oil and gas exploration in this area is presented.