scholarly journals Comprehensive study of LASL Well C/T-2 Roosevelt Hot Springs KGRA, Utah, and applications to geothermal well logging

1981 ◽  
Author(s):  
W.E. Glenn ◽  
J.B. Hulen ◽  
D.L. Nielson
Keyword(s):  
Hot Springs ◽  
Well Logging ◽  
Geothermal Well ◽  
Comprehensive Study

A 225C Geothermal Logging Tool

2016 ◽  
Vol 2016 (HiTEC) ◽  
pp. 000028-000034
Author(s):  
Marshall Soares ◽  
Randy Normann ◽  
Bruce Ohme
Keyword(s):  
Fluid Flow ◽  
High Temperature ◽  
Data Transmission ◽  
Flow Measurement ◽  
High Speed ◽  
Well Logging ◽  
Geothermal Well ◽  
High Temperature Operation ◽  
Logging Tool ◽  
Fluid Flow Measurement

Abstract Geothermal logging tools are difficult to develop due to sustained high temperature operation. Recent commercial component offerings are significantly altering the high temperature geothermal tool problem. This paper implements a new baseline geothermal tool circuit working with five 225C, SOI components. An example tool including up to four spinners (fluid flow measurement), four analog inputs (for pressure, temperature or other sensors), EEPROM storage (program and data), FSK logic (wireline data transmission), and a high-speed UART (tool communication). Field updates of code and calibration constants are supported. Further, this paper demonstrates how the tool electronics can be expanded for more complex applications such as a geothermal well logging camera.

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