New depositional environment plus the clay entering in line with the spectral gamma beam ratios
Th/You ratio get across-plot was generated into the cored intervals each and every better so you’re able to read the towards the depositional ecosystem (Fig. 10).
The clay typing was later accomplished by a group of cross-plots (Fig. 11) with various combinations including thorium versus potassium, photoelectric (PEF) versus potassium, photoelectric versus Th/K ratio and thorium versus AldosO3/(Al2O3 + SiO2). For generating the last one , the XRF data were used. The presence of clay minerals like illite, montmorillonite and glauconite are evident from Fig. 11, however chlorite and kaolinte are not detected by this method.
The results of log-derived clay typing: a Th (vs) K, from Schlumberger ; b PEF (vs) K, from Schlumberger ; c PEF (vs) Th/K, from Schlumberger ; d Th (vs) Al2O3/(Al2O3 + SiO2) from . Black circle Gas producing well data points, and black up-pointing triangle non-producing well data points
Discussion
Considering the unimportant share of your own potassium-free clay nutrition in the Shurijeh Creation, this new natural gamma beam, potassium and thorium logging studies were utilized with full confidence to find prices of Shurijeh clay blogs. There is certainly a strong linear correlation between your pounds % clay therefore the absolute gamma beam record investigation in accordance with the Pearson’s relationship coefficient. According to XRD show, the fresh new low-producing really was even more shaly having an excellent clay level of you to and a half order off magnitude larger than that has been from inside the the newest energy lds planet bezpЕ‚atna wersja prГіbna creating well. The fresh new clay content determined regarding altered absolute gamma beam log and its spectral parts studies, surpassed the true key-counted in the factor, probably from the most other non-clay radioactive nutrients and you can/or even the sized sampling. Continue Reading
