Reduction of the Probability of Occurrence of Differential Pressure Sticking Through the Use of Diesel on Water Based Drilling Fluids
| Autor: | Marco Loaiza, David Esteban Almeida Campana, Raúl Valencia |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Petroleum engineering
lcsh:T Drilling Differential pressure bow tie lcsh:Technology Water based ifferential sticking diesel bow tie risk diesel Diesel fuel lcsh:TA1-2040 Drilling fluid Reservoir pressure differential sticking Environmental science Differential sticking Reduction (mathematics) lcsh:Engineering (General). Civil engineering (General) risk |
| Zdroj: | Enfoqute, Vol 10, Iss 1, Pp 77-88 (2019) Scipedia Open Access Scipedia SL |
| ISSN: | 1390-6542 1390-9363 |
| Popis: | The drilling campaign on Pad C of the Tiputini Field, located on the Oriente Basin, Ecuador, started with the first exploratory well TPTC-002. Pressure tests performed on the M1 sandstone of the Napo Formation determined that the average reservoir pressure (Pr) was 1921 psi. Ten months later, Pr averaged 846 psi. This increased the risk of differential pressure sticking, event that indeed occurred while drilling the well TPTC-016. By using the “Bow-Tie” methodology as a predictive tool to analyze risks, and taking into account the preliminary studies that describe this phenomena, a solution was found for stablishing an additional barrier with the use of diesel on the water-based drilling fluid. Diesel was used in order to extend the ‘half value time’ and to decrease the friction coefficient between the mud cake and pipe. |
| Databáze: | OpenAIRE |
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