Method for calculating coal and rock industrial component contents based on well logging data

• Main Authors: HU CHUNQIAO, QI LIHONG, ZHANG JIE, AO XUANFENG, ZHOU MINGSHUN, GUAN WENZHENG, ZHANG GONG, ZHENG JIAJIA, LIU DIREN, WU JIANFENG, ZHANG YISHUANG, FENG JIAMING, NI XIAOWEI, BIE KANG, WANG XIAOMING, LIANG XIAO, XU GUANYOU, AI LIN, XU WEI
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2017
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention provides a method for calculating coal and rock industrial component contents based on well logging data. The method starts from a mechanism study, collects a large number of coal sample data, and preferably selects sensitive well logging parameters which have obvious effects for reflecting industrial components; a multiple regression interpretation model is established based on an ash content and a moisture content and the sensitivity of the well logging parameters; a fixed carbon content is further obtained through a superior linear relationship between the ash content and the fixed carbon content, and finally a volatile matter content is obtained according to a volume model of the coal and rock industrial components. According to the method, compared with the prior art, the calculation is reduced, and meanwhile, the calculation accuracy is greatly improved; through comparison between the experimental data and interpretation results, the error of the method is controlled at 5%; and the method