CAJ | 학술논문

随着油气勘探和开发的深入，油气储集体越来越复杂，希望从地震资料中提取更多的反映储层及流体特征的信息，这对叠前反演技术和流体识别技术都提出了较高的要求。基于 Gas-smann 方程构建的流体因子可较好地指示储层及流体，得到了较为广泛地应用，但因子构建的多样化、调节参数取值的主观化，以及单一追求流体识别因子的高敏感度等因素，制约了流体识别在实际应用中的实效性。通过对常用的流体识别因子进行解构，得到影响其敏感度的因素，结合叠前反演的参数进行新的流体因子构建，并与常用的流体因子进行对比分析。分析结果表明，新构建的流体因子具有较高的灵敏度和较好的有效性。
수착유기감탐화개발적심입，유기저집체월래월복잡，희망종지진자료중제취경다적반영저층급류체특정적신식，저대첩전반연기술화류체식별기술도제출료교고적요구。기우 Gas-smann 방정구건적류체인자가교호지지시저층급류체，득도료교위엄범지응용，단인자구건적다양화、조절삼수취치적주관화，이급단일추구류체식별인자적고민감도등인소，제약료류체식별재실제응용중적실효성。통과대상용적류체식별인자진행해구，득도영향기민감도적인소，결합첩전반연적삼수진행신적류체인자구건，병여상용적류체인자진행대비분석。분석결과표명，신구건적류체인자구유교고적령민도화교호적유효성。
With the exploration and development of oil and gas in depth,oil and gas reservoirs become complex increasing-ly,people want to extract more information of layer and fluid characteristics to reflect the reservoir from seismic data,the pres-tack inversion technology and fluid identification technology have been put forward to higher requirements than before.At pres-ent,fluid factor constructed on the Gassmann equation can indicate the reservoir and fluid better,so it has been widely used. But some factors restricts the effectiveness of fluid identification in practical application,which includes diversity of constructed factor,subjectivity of adjusting parameters,single subjective pursuit for the high sensitivity of fluid identification and other fac-tors.Based on the deconstruction of the fluid identification factor which commonly used,get the factors influencing the sensi-tivity of parameters.Combined with the parameters of prestack inversion to build new fluid factor,and compared with the fluid factor commonly used.Analysis results show that the new fluid factor has the higher sensitivity and better effectiveness.