Research On High Density 3D Seismic Acquisition Technology Of Qingzijing Area

High density seismic exploration refers to the acquisition of less than a certain set of the previous or the acquisition method of distance,or only in the form of the smallest unit.This technique was first proposed by foreign scholars,has been developed so far,has been widely used in oil and gas exploration of the oil and gas exploration.Since the 3D seismic exploration technology since the introduction of the actual oil and gas exploration,oil and gas exploration by the majority of scholars and researchers to further innovation and development,the basic grasp of the core idea of 3D seismic exploration technology,technology application skill,can in most areas of oil and gas exploration.In recent years,the application of 3D seismic exploration is becoming more and more extensive.However,with the complication of exploration conditions and the requirement of high precision acquisition,the data collected by conventional 3D seismic acquisition technology are not suitable for high precision seismic interpretation.High-density three-dimensional seismic acquisition technology can provide high signal-to-noise ratio,high resolution and high fidelity data for its improvement of small blocks,thin reservoirs and small sand bodies.It provides guarantee for high-precision data processing and interpretation and meet the requirements of oil production.By using PSTM and DMO pre-stack offset noise analysis techniques,a new method is provided for better imaging results.In the excitation,reception and processing of the three-dimensional earthquake resolution and fidelity has improved,forming a set of information for the well area data receiving and processing technology.In this paper,the main results are as follows: the new optimization method of observation system is provided.By means of narrowing the excitation point interval and encrypting micro logging,the resolution of surface data is improved,and precise parameters are provided for well design.Area to improve the resolution for the purpose of the excitation well design technology,formed a set of emotional well area high-density collection technology series;to achieve the connection with the instrument car,the seismic data for real-time evaluation,seismic acquisition and evaluation information feedback rate reached100%.