Title :
Electronic manometer under the oil well
Author :
Zu, Jing ; Wang, Hua ; Song, Shuzheng ; Zhang, Wengdong ; Sheng, Xiangnam
Author_Institution :
North China Inst. of Technol., China
Abstract :
An electronic manometer is presented to study the formation fracturing process by high pressure gas in an oil-well and develop a kind of torpedo used for this process. It can record the pressure-time relation over the whole process. The measurement error is less than 1.5% under a temperature up to 150°C and a pressure of 200 MPa. In this paper, a new type of self-compensating charge amplifier, an ASIC and a calibration system are discussed in detail. Other units of the manometer are described briefly. The field test results are also presented
Keywords :
application specific integrated circuits; calibration; computerised instrumentation; instrumentation amplifiers; manometers; oil technology; operational amplifiers; pressure measurement; 150 C; 200 MPa; ASIC; calibration; electronic manometer; formation fracturing process; high pressure gas; measurement error; oil well; oil-well; pressure-time relation; self-compensating charge amplifier; torpedo; CMOS integrated circuits; CMOS process; Capacitance; Equations; Operational amplifiers; Petroleum; Sampling methods; Signal processing; Signal sampling; Thickness control;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.351917
