CAJ | 학술논문

由于CRS叠加考虑了反射层的局部特征和第一菲涅耳带内的全部反射,从而更充分地利用了多次覆盖反射数据的信息.就目前的地震资料处理技术而言,它是最件的零偏移距成像方式.本论文利用改进型的参数优化技术,得到高质量的CRS运动学参数剖面,并利用参数剖面计算出叠加孔径,实现了基于最优孔径的CRS叠加,使CRS参数的用途得到了充分利用.模型数据和实际资料的试算表明,基于最优孔径的CRS叠加的成像剖面与传统CRS叠加剖面相比,有着较高的信噪比和同相轴的连续性.
유우CRS첩가고필료반사층적국부특정화제일비열이대내적전부반사,종이경충분지이용료다차복개반사수거적신식.취목전적지진자료처리기술이언,타시최건적령편이거성상방식.본논문이용개진형적삼수우화기술,득도고질량적CRS운동학삼수부면,병이용삼수부면계산출첩가공경,실현료기우최우공경적CRS첩가,사CRS삼수적용도득도료충분이용.모형수거화실제자료적시산표명,기우최우공경적CRS첩가적성상부면여전통CRS첩가부면상비,유착교고적신조비화동상축적련속성.
The common reflection surface (CRS) stack is based on the local dip of the reflector and the reflection response within the first Fresnel zone. During the CRS stack all the information given by a multi-coverage reflection dataset can be successfully utilized. By now, it is known as the best zero-offset (ZO) imaging method. In this paper high quality CRS kinematic parameter sections are obtained by a modified CRS optimization strategy. Then stack apertures are calculated using the parameter sections which finally results in the realization of the CRS stack based on optimized aperture. Thus the advantages of CRS parameters are fully developed. Application to model and real seismic data reveals that, compared with the image section by a conventional CRS stack, the image section by CRS stack based on an optimized aperture improves both the signal-to-noise ratio and the continuity of reflection events.