CAJ | 학술논문

测井曲线是载有地层沉积旋回信息的信号,运用测井信息划分层序地层单元及地层对比研究自开始以来已取得了长足进步,从定性的分析、识别发展到现在可半定量、定量提取不同级别的沉积单元界面及进行层序地层对比,更进一步克服了地质学家手工划分层序中人为因素的影响,进而也推进了层序地层学研究的定量化发展.岩性突变、沉积韵律是影响其测井响应及曲线形态的两个重要因素,测井响应对沉积单元界面上下岩性的类型及粒度的不同而产生的声、放、电性质的变化,是利用测井信息划分沉积单元界面的基础.随着层序地层学研究的深入,沉积单元界面识别及层序地层对比的测井研究将向更深层次、更定量化的方向发展,短周期及超短周期沉积旋回的测井曲线形态内部特征提取及划分、层序地层智能动态匹配对比的方法研究将是今后开展研究的新方向.
측정곡선시재유지층침적선회신식적신호,운용측정신식화분층서지층단원급지층대비연구자개시이래이취득료장족진보,종정성적분석、식별발전도현재가반정량、정량제취불동급별적침적단원계면급진행층서지층대비,경진일보극복료지질학가수공화분층서중인위인소적영향,진이야추진료층서지층학연구적정양화발전.암성돌변、침적운률시영향기측정향응급곡선형태적량개중요인소,측정향응대침적단원계면상하암성적류형급립도적불동이산생적성、방、전성질적변화,시이용측정신식화분침적단원계면적기출.수착층서지층학연구적심입,침적단원계면식별급층서지층대비적측정연구장향경심층차、경정양화적방향발전,단주기급초단주기침적선회적측정곡선형태내부특정제취급화분、층서지층지능동태필배대비적방법연구장시금후개전연구적신방향.
Well log curves contain important information of sedimentary cycles. Great progress has been made in the research of division and correlation on sequence strata using well log data. The method has allowed qualitative analysis, which can resolve the difficulty in the qualitative and arbitrary division of sedimentary units, and quantitative sequence stratigraphy. Lithologic alternation and sedimentary rhythm are two important elements which affect response and curve shape of well logs. Abrupt changes in acoustics, radioactivity, and electric properties are caused by the different lithologies and grain sizes above and below a sedimentary interface, and they are the basis of sedimentary interfaces identified by using log information. The research on the division and correlation of sequence strata by using well log data will continue to develop in the future. The study on the identification and division of well log shape of short cycles, super-short cycles, as well as stratal correlation using methods of dynamic matching, are among the new trends in this area of research.