Methods for statistical prediction of well production and reserves
US10450841B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Sep 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/57
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for optimizing a well production forecast includes inputting into a computer: initial production rate measurements and probability distributions to estimate production forecast model parameters. The computer generates an initial forecast of fluid production rates and total produced fluid volumes using a selected production forecast model. After a selected time, the initial forecast is compared with actual production rate and total produced fluid volume measurements to generate an error measurement. Parameters of the selected production forecast model are adjusted to minimize the error measurement, thereby generating an adjusted production forecast model. The parameter adjustment and error measurement are repeated for a plurality of iterations to generate a plurality of production forecast models each having a determined likelihood of an error measurement. The plurality of production forecast models are displayed with respect to likelihood of error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.