基于巖石物理測試模型的測井曲線校正方法
劉愛疆
摘 要：針對密度測井、縱波速度和橫波速度曲線探測深度較淺，受井眼不規(guī)則影響比較嚴重的問題，為研究儲層各屬性的影響及與彈性屬性間的關系，采用巖石物理模型對測井資料進行診斷和校正，提高測井曲線與地層信息的匹配程度。結果表明：經(jīng)過巖石物理模型診斷和校正的測井資料能明顯的提高測井資料的品質(zhì)，根據(jù)校正后的資料才能正確的標定井震之間的關系，為地震解釋和反演提供可靠的依據(jù)。
關鍵詞：測井曲線校正；巖石物理模型；等效介質(zhì)模型；Hashin-Shtrkman模型；合成地震記錄
中圖分類號：P584；P641；TP274；TM939.12 文獻標志碼：A 文章編號：1674-5124（2013）05-0020-04
Correction method of logging curves based on rock physics model
LIU Ai-jiang1，2， ZHANG Wei2， LI Qing3
（1. State Key Laboratory of Oil and Reservoir Geology and Exploitation，Chengdu University of Technology，
Chengdu 610059，China；
2. College of Geophysics，Chengdu University of Technology，Chengdu 610059，China；
3. College of Earth Sciences，Chengdu University of Technology，Chengdu 610059，China）
Abstract: It is vulnerable to be influenced by the irregular borehole for shallow detection depth when the curves of density， P-wave velocity and shear velocity are used. In order to study the influence of the reservoir properties and the relationship between the elastic properties and the reservoir properties， the authors diagnosed and corrected the logging curves using rock physical model so that it can reflect the real formation information. The results show that the logging curves corrected with the rock physics model can significantly improve the logging data quality of reproduction. It can establish the correct relations between the well data and the seismic data and check the results of inversion seismic.
Key words: logging curve correction； rock physical model； equivalent medium model； Hashin-Shtrkman model； synthetic seismogram.
