The Adaptive Research Of Uphole Survey Technology In Surface Structure Investigation

With the development of high precision seismic exploration data acquisition technology,the investigation of surface structure has become an important process in Geophysical prospecting.Accurate data can provide scientific protection in Geophysical data processing and interpretation later.This paper suggests the induction and the summary of the investigation method of surface structure,and Elaborate in Two aspects: non seismic exploration method and seismic exploration method,while list research status At home and abroad.In the methods of seismic exploration method,uphole survey compared to the small refraction,has become the main method to investigate the surface structure.According to the number of required for construction of wells,can be divided into single-well uphole survey and double-hole uphole survey.In the single-well uphole survey,according to the different excitations,receiving mode,double-hole uphole survey can be divided into the borehole excitation,ground receiving and in-well receiving,ground excitation.This paper introduces some construction methods,technical principle of uphole survey and several construction methods of uphole survey.At the same time,and also selecting production examples in different situations and elaborating several methods of uphole survey.Exploratory area cover flatlands,network of rivers,mountainous region and desert.During the elaborating,the Application Research of uphole survey technology is carrying on from shallow to deep,and from simple to complex this paper has taken some practical improvements to equipment and facilities.Through the experimental contrast,this paper selects construction method which is suitable for Surface conditions.Under conditions permitting,while combined with a variety,such as small refraction,GPS measurements,Geological outcrop and using lithologic data and complete the investigation for the surface structure in every work area.Suiting one's measures to local conditions focus on experiments.From the experiments,we can know that: selecting in-well uphole survey and double-hole uphole survey in flatlands,selecting in-well uphole survey in network of rivers after the experiment between small refraction and uphole survey;selecting ground uphole survey in mountainous region after the experiment between ground uphole survey and n-well uphole survey;selecting double-hole uphole survey and in-well uphole survey in desert.All above methods get accurate surface survey data and provide a scientific basis for designing depth of the well.