Failure criterion effect on solid production prediction and selection of completion solution
| Autor: | Bernt S. Aadnøy, S. Nadimi, Mohammad Ali Aghighi, Bijan Maleki, Mahdi Rastegarnia, Dariush Javani |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Petroleum engineering
Petrophysics Borehole Completion solution 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Pore water pressure 020401 chemical engineering Completion (oil and gas wells) lcsh:Engineering geology. Rock mechanics. Soil mechanics. Underground construction lcsh:TA703-712 Erosion Mechanical earth model Environmental science Production (economics) Initial value problem Geotechnical engineering Reservoir fluid 0204 chemical engineering Solid production Failure criterion Reservoir depletion 0105 earth and related environmental sciences |
| Zdroj: | Journal of Rock Mechanics and Geotechnical Engineering, Vol 9, Iss 6, Pp 1123-1130 (2017) |
| ISSN: | 1674-7755 |
| Popis: | Production of fines together with reservoir fluid is called solid production. It varies from a few grams or less per ton of reservoir fluid posing only minor problems, to catastrophic amount possibly leading to erosion and complete filling of the borehole. This paper assesses solid production potential in a carbonate gas reservoir located in the south of Iran. Petrophysical logs obtained from the vertical well were employed to construct mechanical earth model. Then, two failure criteria, i.e. Mohr–Coulomb and Mogi–Coulomb, were used to investigate the potential of solid production of the well in the initial and depleted conditions of the reservoir. Using these two criteria, we estimated critical collapse pressure and compared them to the reservoir pressure. Solid production occurs if collapse pressure is greater than pore pressure. Results indicate that the two failure criteria show different estimations of solid production potential of the studied reservoir. Mohr–Coulomb failure criterion estimated solid production in both initial and depleted conditions, where Mogi–Coulomb criterion predicted no solid production in the initial condition of reservoir. Based on Mogi–Coulomb criterion, the well may not require completion solutions like perforated liner, until at least 60% of reservoir pressure was depleted which leads to decrease in operation cost and time. |
| Databáze: | OpenAIRE |
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