Collaboration delivers LWD triple-combo breakthrough for ultra-high-temperature wells

[...]a new LWD toolstring that provides real-time downhole data, while withstanding 410°F temperatures, has been developed and tested in the harsh Gulf of Thailand. [...]recently, however, the vast majority of so-called high-temperature LWD tools had an upper temperature operating limit of 347°F. Th...

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Bibliographic Details
Published inWorld Oil Vol. 238; no. 9; pp. 69 - 72
Main Authors Wacher, Steven, Crosby, Zach, Binford, Tommy L
Format Trade Publication Article
LanguageEnglish
Published Houston Gulf Publishing Co 01.09.2017
Subjects
Basins
Boring tools
Collaboration
Delivery scheduling
Drilling
Forces (mechanics)
Gamma rays
Heat waves
High temperature
Hydrocarbons
Maintenance management
Natural gas reserves
Porosity
Preventive maintenance
R&D
Research & development
Schedules
Sensors
Telemetry
Temperature
Thermal neutrons
Ultrahigh temperature
Vibration
Thailand
North America
Gulf of Thailand
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Summary:[...]a new LWD toolstring that provides real-time downhole data, while withstanding 410°F temperatures, has been developed and tested in the harsh Gulf of Thailand. [...]recently, however, the vast majority of so-called high-temperature LWD tools had an upper temperature operating limit of 347°F. This limitation often forces operators working in basins above this temperature to consider alternative drilling methods, none of which are ideal. The HeatWave Extreme service includes a HPHT-rated tool equipped with directional sensors and mud-pulse telemetry, in addition to gamma ray, bore and annular pressure (BAP) sensors, and a thermal neutron porosity sensor, Fig. 1. [...]the electronics packages were subjected to random frequency-vibration testing at 10-to-15-g accelerations, at a temperature of 392°F. To assure reliable tool performance in the field over time, Weatherford developed a comprehensive, performance preventative maintenance program, including a mechanism to track the time at which a given tool is exposed to various temperature and vibration levels, and adjust maintenance schedules for each sensor component accordingly.
ISSN:0043-8790