发明名称 |
METHOD OF SUBDIVISION OF WELL LITHOLOGICAL LOG IN THE COURSE OF DRILLING |
摘要 |
borehole investigations. SUBSTANCE: method includes interval sampling of drilling cuttings in investigated borehole and core in reference borehole with relation to depth; preparation of samples of core and drilling cuttings; determination of values of sample optical densities on characteristic absorption bands on the same wave lengths; additional determination of values of relative drilling parameter in investigated and reference boreholes; construction of reference relation ratios of optical densities of core samples and relative drilling parameter in reference borehole with determination of rock lithological type by borehole lithological log; subdivision of borehole lithological log into lithological types by values of optical densities of drilling cuttings and values of relative drilling parameter in investigated borehole by reference relation. EFFECT: higher accuracy and rate of investigation due to complex consideration of physico-chemical composition of rock and its mechanical properties on basis of data on detailed mechanical logging directly in drilling process. 1 dwg
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申请公布号 |
RU2191882(C2) |
申请公布日期 |
2002.10.27 |
申请号 |
RU19990126601 |
申请日期 |
1999.12.17 |
申请人 |
ROSSIJSKIJ GOSUDARSTVENNYJ UNIVERSITET NEFTI I GAZ;A IM I M GUBKINA |
发明人 |
STREL'CHENKO V.V.;BASYROV M.A. |
分类号 |
E21B25/00;(IPC1-7):E21B25/00 |
主分类号 |
E21B25/00 |
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