CAJ | 학술논문

波阻抗反演是储层预测的一种重要手段,但是当储层与非储层(围岩)波阻抗差异不明显时,利用常规波阻抗反演技术难以较好地识别储层.而测井曲线重构技术可以有效提高岩性识别和储层预测的精度,减少多解性.这里结合川西坳陷须家河组勘探实践,利用GR曲线重构声波反演技术对有利区域进行了预测,有效地提高了反演剖面的分辨率,并在一定程度上提高了岩性解释的准确性和精度.同时,比较了常规波阻抗反演与该方法的区别,取得了良好的效果.
파조항반연시저층예측적일충중요수단,단시당저층여비저층(위암)파조항차이불명현시,이용상규파조항반연기술난이교호지식별저층.이측정곡선중구기술가이유효제고암성식별화저층예측적정도,감소다해성.저리결합천서요함수가하조감탐실천,이용GR곡선중구성파반연기술대유리구역진행료예측,유효지제고료반연부면적분변솔,병재일정정도상제고료암성해석적준학성화정도.동시,비교료상규파조항반연여해방법적구별,취득료량호적효과.
In case of the difference of acoustic impedance between reservoir layers and non-reservoir layers is too little to be differentiated,it is very difficult to identify the reservoir using the inversion method of conventional impedance in some fields though impedance inversion is a important method in reservoir prediction.In order to resolve this problem and decrease the ambiguity,the technique of reservoir-identifying logging curve reconstruction is used.The authors use the technique of GR logging curve reconstruction to predict reservoirs in the depression of Xujia River series in western SiChuan. the resolution of inversion profile has been effectively increased, and the accuracy of the interpretation of lithology has been enhanced. Compared with the conventional impedance inversion, this method achieved remarkable results.