Cooling capacity simulation device and calculation method of cooling material for drilling fluid

• Main Authors: ZHANG JIE, LI CUINAN, ZHOU CHENGHUA, ZHAO LIANG, LIU XIAOJIE, ZHOU JIAZHENG, ZHANG ZHEN, XIE JIAOHAO
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention discloses a cooling capacity simulation device and calculation method for a cooling material for drilling fluid, and the calculation method comprises the following steps: S1, preparing drilling fluid base slurry for experiment, uniformly stirring, and injecting into a liquid storage pool; s2, the well bore simulation system is filled with drilling fluid base slurry; s3, heating to a target drilling fluid temperature; s4, liquid phase fluid circulation is carried out, and the time for reaching the phase change temperature and the phase change heat absorption saturation time in the circulation process are recorded; s5, emptying is carried out; s6 and S7, drilling fluid heat absorption simulation experiments of cooling materials with different weight part ratios under different displacements and well depths are carried out, and time and temperature parameters in the simulation experiment process are recorded; and S8, establishing a temperature calculation equation, and solving the temperature calcu