Method and system of drilling with geologically-driven rate of penetration
US11339640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jun 2, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of drilling includes obtaining historical data for historical wells in a field, determining a set of drilling parameters, and determining a set of hole section sizes defining a wellbore geometry. For each combination of a parameter in the set of parameters and a hole section size in the set of hole section sizes, historical wells having average values of the parameter exceeding a threshold for the hole section size from the historical surface drilling data are selected. An expected output for each of a model to be trained by each of the selected historical wells is derived based on a rate of penetration while drilling. A final model is trained with the selected historical wells and expected outputs. An operating envelope is determined for each of the parameters in the set of parameters from the trained model. The operating envelopes may be used to guide drilling of a well in the field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.