Форум » ПЕТРОФИЗИЧЕСКИЙ СОФТ - PETROPHYSICAL SOFTWARE » GeoWin (Poland) » Ответить
GeoWin (Poland)
bne: Combined Monte Carlo and Gradient Procedures Used to Optimized Solution of the Comprehensive Interpretation of Well Logs Authors: U. Woznicka, J.A. Jarzyna, A. Cichy Event name: Near Surface 2006 Session: Borehole Geophysics & Tomography Language: English Info: Extended abstract, PDF (485.09 KB) Publication date: 04 September 2006 Organisations: EAGE Summary The comprehensive interpretation of well logs is a mathematical task on a solution of a set of equations. The number of equations is determined by the number of the logs and conditions determining boundary and geological requirements. The common methods (e.g. gradient method, GRAD) are limited to cases when one global minimum occurs in the examined range of variables. Only Monte Carlo method, MC, which consists on numerous solutions obtained by random sampling of possible variables can find the global minimum of the function when other local minima are present. The MC method is time consuming, especially, in application to the well logging interpretation when enormous number of points along the depth profile should be calculated. We propose a complex method of solution combining both MC and GRAD methods. The method has been applied to the Interlog application in the GeoWin system for processing and interpretation of well logs and the field example is presented in the paper. The results confirm that the combined MC-GRAD solutions can give more information than the simple GRAD solution. Presented approach can be treated as an additional tool, especially dedicated for log analysts, for solving a set of logs difficult to interpretation. ... http://www.earthdoc.org/detail.php?paperid=B044&edition=14
Ответов - 2
bne: Computing Solutions for the Comprehensive Interpretation of Well Logs Authors: J.A. Jarzyna, U. Woznicka, A. Cichy Event name: London 2007, 69th EAGE Conference & Exhibition incorporating SPE EUROPEC 2007 Session: Petrophysics (EAGE/EUROPEC) Language: English Info: Extended abstract, PDF (721.46 KB) Publication date: 01 June 2007 Organisations: SPE, EAGE Summary F015 Computing Solutions for the Comprehensive Interpretation of Well Logs J.A. Jarzyna* (AGH - University of Science and Technology) U. Woznicka (Institute of Nuclear Physics Cracow) & A. Cichy (AGH - University of Science and Technology) SUMMARY Computer systems for processing and interpreting well logs are based on deterministic or mixed deterministic and statistical approach to the problem of porosity and mineral composition and water saturation determination. Results of the comprehensive interpretation are get as the solution of a set of equations. One equation is constructed for one log and in each equation porosity and volumes of mineral components and ... http://www.earthdoc.org/detail.php?paperid=F015&edition=27
bne: http://www.bpp.agh.edu.pl/bpp.phtml http://www.ifj.edu.pl/sieci/mjg/Publikacje_mjg.pdf http://nauka-polska.pl/dhtml/raporty/praceBadawcze?rtype=opis&lang=pl&objectId=44377 Интересно бы что-то почитать на сей счет (кроме взятого с EarthDoc) Сейчас в Россию из Польши почти ничего не попадает Ни Nafta, ни Acta Geophysica Polonica ;-( И есть даже почта 1. Kaźmierczuk, M. (kazmierczuk@geol.agh.edu.pl) Faculty of Geology Geophysics and Environmental Protection, Department of Geophysics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland 2. Jarzyna, J. (jarzyna@uci.agh.edu.pl) Faculty of Geology Geophysics and Environmental Protection, Department of Geophysics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
полная версия страницы