A Newly Developed Wellbore-Simulation Apparatus To Study Performance of Oilwell Cements
| Autor: | Donald J Janssen, Julie M. Vandenbossche, Anthony T. Iannacchione, Zichang Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Wellbore
Petroleum engineering 020209 energy Mechanical Engineering 0202 electrical engineering electronic engineering information engineering Energy Engineering and Power Technology 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences Geology 0105 earth and related environmental sciences |
| Zdroj: | SPE Drilling & Completion. 33:174-191 |
| ISSN: | 1930-0204 1064-6671 |
| DOI: | 10.2118/191129-pa |
| Popis: | Summary Research has been dedicated to the development of laboratory-scale simulation devices for studying mechanisms of gas migration. Cement-hydration analyzers (CHAs) are commercially available to assist industry in the design of gas-tight slurries. Although cement slurries under controlled conditions in the laboratory can be gas-tight, the in-situ performance of cement slurries is highly variable and difficult to predict. Therefore, a new approach has been designed to evaluate gas-migration potential under a range of representative borehole conditions. A laboratory-scale wellbore-simulation chamber (WSC) has been developed to replicate hydrostatic-pressure reduction in the cemented annulus and evaluate the potential for gas invasion under a range of borehole conditions. A discussion is presented on the development of the WSC that includes the details of the design and monitoring systems as well as the performance characteristics. Calibration-test results are examined to evaluate the performance of the WSC and the ability of the WSC to simulate in-situ wellbore conditions. Analysis of the results verifies the capability of the WSC in successfully recording the necessary parameters. |
| Databáze: | OpenAIRE |
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