Well logging density sensor

• Main Authors: HE MING, ZHAO ZHONGQIANG, XIE GUANGHUI, LI GUOYING, ZHANG CHONGJUN, LI YINGBO, YANG TIECHENG, GUO FENGLAN, HE YICHENG, LIU JINZHU, JI CHENGGAO, HUANG JIA, ZHU ZHENSHENG, WANG HELAI, WANG ENQIAO
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2014
• 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 belongs to measurement instruments and specifically relates to a well logging density sensor used for measuring the density of downhole liquid in a petroleum well. The sensor is matched with a transmitter, thereby forming a special logging instrument for measuring the density. The sensor comprises a pair of high-pressure joints for allowing fluid to flow in and out, a platinum resistor temperature sensor, a fixed pressing block, an outer shell, a measurement pipe, a first detector, a second detector, a vibration exciter, a fixed pressing plate, and positioning rings. The beneficial effects of the utility model are that by adopting the aforementioned technical scheme, the integrally-processed cylindrical outer shell, fixed pressing block, fixed pressing plate, and two positing rings are utilized, thereby simplifying the structure, increasing the overall rigidity, and making the mounting, regulating, and maintaining more convenient. According to tests, the sensor is stable in measurement resul