Temperature model provides information for well control

The misinterpretation of well bore signals, especially those concerning drilling-fluid temperatures and volumetric expansion, has been identified as a key problem when drilling high-pressure, high-temperature wells offshore Norway. How to derive exact temperature information from a well during drill...

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Bibliographic Details
Published inThe Oil & gas journal Vol. 96; no. 37; pp. 76 - 83
Main Authors KARSTAD, E, AADNOY, B.S
Format Magazine Article
LanguageEnglish
Published Tulsa, OK Pennwell 14.09.1998
Endeavor Business Media
Subjects
Applied sciences
Crude oil, natural gas and petroleum products
Drilling
Drilling methods and equipments. Rocks mechanics. Directional and horizontal drilling
Drilling. Casing. Preparing wells for production
Energy
Exact sciences and technology
Fuels
High temperature
Methods
Offshore drilling
Oil wells
Prospecting and production of crude oil, natural gas, oil shales and tar sands
Technology
Temperature
Norway
Drilling mud
Drilling
Temperature measurement
Thermal expansion
Mathematical model
Blowout well
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Summary:The misinterpretation of well bore signals, especially those concerning drilling-fluid temperatures and volumetric expansion, has been identified as a key problem when drilling high-pressure, high-temperature wells offshore Norway. How to derive exact temperature information from a well during drilling and circulating operations so that more-accurate information can be provided to drillers and engineers during well-control situations is discussed. A field case is presented demonstrating the applications of the model. The derived model is an important tool for interpreting mud ballooning effects so that actual bottom-hole pressures can be more exactly determined.
Bibliography:content type line 24
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SourceType-Magazines-1
ISSN:0030-1388
1944-9151