| 000 | 02438nab a2200205 4500 | ||
|---|---|---|---|
| 005 | 20260520002025.0 | ||
| 008 | 260224s2011 xxu | ||
| 245 | 0 | 0 |
_aTransient nonisothermal fully coupled wellbore/reservoir model for gas-well testing _bPart 1: Applications |
| 260 |
_a _b _csep./oct. 2011 |
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| 270 | _a20/10/2011 ; 20/10/2011 | ||
| 300 | _a20 p. ; 51-70 | ||
| 520 | _aTranscripción del resumen del autor. After the development of a numerical fully implicit nonisothermal wellbore/reservoir simulator in Part 1 of this study (Bahonar et al. 2010), this simulator is implemented for a close and detailed study of gas-well pressure-drawdown (DD) and -buildup (BU) tests. Overall, the developed simulator is an accurate and strong tool for design and analysis of transient gas-well testing, particularly for high- pressure/high-temperature (HP/HT) gas reservoirs. Several numerical results will be presented. This includes demonstration of the behaviour of the wellbore-fluid pressure, temperature, density, and velocity and an overall heat-transfer coefficient during DD or shut-in tests for nonisothermal reservoirs and conceptual comparisons with the isothermal counterparts. Thermal effects on the behaviour of derivative plots and the sandface-flow rate of deep nonisothermal gas reservoirs will be studied. A significant effect of neglecting the heat capacity of tubular and cement materials on the wellhead-temperature simulation, and thus transient well tests, will be demonstrated. A sample case to show that neglecting the thermal effects in the gas-well tests of composite reservoirs leads to unreliable results in well-testing analysis will be presented. Several other numerical experiments, including the presence of a variable wellbore-storage coefficient, gas backflow from the wellbore to the reservoir, and other thermal effects during the gas-well tests, are also presented. Hundreds of millions of dollars are spent every year on well testing around the world (Hawkes et al. 2001). A proper design and truthful interpretation of these tests can be achieved by a reliable coupled wellbore/reservoir simulator, which in turn can save a large portion of the required costs. | ||
| 581 | _a9/10 | ||
| 773 | 0 |
_tJournal of Canadian Petroleum Technology _g50 |
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| 942 | _cARTICULO | ||
| 100 | 1 |
_aBahonar, M. _944253 |
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| 100 | 1 |
_aAzaiez, J. _944254 |
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| 100 | 1 |
_aChen, Z. _912420 |
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| 999 |
_c186209 _d186209 |
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