Online calibration device for wellhead temperature and pressure integrated transmitter

• Main Authors: CHEN SHUOYU, CAO JIANJUN, WANG LIHUO, DAI WEIPING, WANG QINGUO, XUE GUANGPENG, ZHANG FENGLI
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• 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 utility model relates to the field of oil field instrument detection, and discloses an online calibration device for a wellhead temperature and pressure integrated transmitter, which comprises a standard temperature acquisition sleeve, a rod type temperature sensor, a pressure transmitter, a movable union, a three-way emptying valve, a pressure acquisition short section, an oil-water isolator, a pipe fitting and a quick joint, the standard temperature acquisition sleeve comprises a bottomed outer cylinder and a bottomed inner cylinder, the bottomed inner cylinder is sleeved in the middle of an inner cavity of the bottomed outer cylinder, a gap is formed between the bottom wall of the bottomed inner cylinder and the bottom wall of the bottomed outer cylinder, and the bottomed inner cylinder is filled with heat conduction oil; and the lower part of the rod type temperature sensor is inserted into the heat conduction oil with the bottom inner cylinder. According to the utility model, the actual temperature a