Digital Transmitters and Loggers Keeping an Eye on Downhole Temperature and Pressure
Downhole drilling operators must measure pressure and temperature to optimise drilling processes and ensure safety. For this purpose, a variety of downhole tools is used...
Downhole drilling operators must measure pressure and temperature to optimise drilling processes and ensure safety. For this purpose, a variety of downhole tools is used, which are either mounted just above the drill bit to provide continuous measurement data while drilling, or as separate tools which are inserted into the drill hole on a periodic basis. Once the drilling is complete and production begins, these measurements are needed to optimise throughput, maximise uptime, and ensure safety.
Demanding the Maximum from Process Equipment
In all of these applications, space is at a premium and high reliability is required. The environment is extremely harsh with high temperatures and pressures, corrosive drilling fluids, and high vibration. Rugged components with small form factors are required to support smaller tool sizes, along with increased pressures and temperatures as holes become deeper. To address these issues, Emerson's Paine 328-12-0010 data logger/transmitter provides both temperature and pressure measurements in a single unit with small, rugged form factor.
Precise Measurement under Extreme Conditions
The transmitter measures pressure and temperature with full-scale accuracy of ±0.05 % and is able to withstand operating temperatures from -40°5 F (or -40°5 C) to 347° F (175°5 C respectively). The slim-diameter form factor of only 0.51 inches saves critical downhole tool space. The measured data can be transmitted via the built-in RS-485 digital data link. Using its built-in on-board memory, the device also provides data logging functionality, allowing it to automatically store large amounts of gathered data for future analysis.