油气藏评价与开发
油氣藏評價與開髮
유기장평개여개발
2015年
2期
62-66
,共5页
地质统计学反演%储层预测%曲塘深凹%阜宁组三段
地質統計學反縯%儲層預測%麯塘深凹%阜寧組三段
지질통계학반연%저층예측%곡당심요%부저조삼단
geostatistical inversion%reservoir prediction%Qutang deep pit%the 3rd sections of Funing Group
地质统计学反演基于地质统计学方法，对储层的空间分布特征进行模拟，预测储层分布规律。相对于常规约束稀疏脉冲反演，地质统计学反演不再受限于地震资料频带宽度，能有效提高反演结果纵向分辨率，识别厚度较小的储层。以海安凹陷曲塘深凹为例，利用地震、测井资料和地质认识，在稀疏脉冲波阻抗反演基础上开展地质统计学反演，进行砂体展布预测。研究结果与钻井资料吻合度较高，符合地质认识，为认识该区砂体分布提供了依据，为寻找有利区奠定了基础。
地質統計學反縯基于地質統計學方法，對儲層的空間分佈特徵進行模擬，預測儲層分佈規律。相對于常規約束稀疏脈遲反縯，地質統計學反縯不再受限于地震資料頻帶寬度，能有效提高反縯結果縱嚮分辨率，識彆厚度較小的儲層。以海安凹陷麯塘深凹為例，利用地震、測井資料和地質認識，在稀疏脈遲波阻抗反縯基礎上開展地質統計學反縯，進行砂體展佈預測。研究結果與鑽井資料吻閤度較高，符閤地質認識，為認識該區砂體分佈提供瞭依據，為尋找有利區奠定瞭基礎。
지질통계학반연기우지질통계학방법，대저층적공간분포특정진행모의，예측저층분포규률。상대우상규약속희소맥충반연，지질통계학반연불재수한우지진자료빈대관도，능유효제고반연결과종향분변솔，식별후도교소적저층。이해안요함곡당심요위례，이용지진、측정자료화지질인식，재희소맥충파조항반연기출상개전지질통계학반연，진행사체전포예측。연구결과여찬정자료문합도교고，부합지질인식，위인식해구사체분포제공료의거，위심조유리구전정료기출。
Geostatistical inversion based on geostatistical method simulate the spatial distribution characteristics of reservoir and predict the reservoir distribution. Compared with conventional constrained sparse spike inversion, the geostatistical inversion no longer limited to the bandwidth of seismic data can effectively improve the vertical resolution of the inversion results and identify thickness smaller reservoir. Taking Qutang deep pit of Haian depression as an example, and by using seismic, logging data and geo?logical understanding, geostatistical inversion based on constrained sparse spike inversion was conduct to predict the sandbody res?ervoir distribution. The results highly consistent with the drilling data and geological understanding, provide basis for recognizing the sandbody distribution of this area and lay the foundation of finding advantage areas.
