Chemical treatment well tool assembly pressure containment
US11454090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Dec 13, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A chemical treatment assembly can include a section including a pressure containment valve that selectively permits and prevents fluid communication with a flow passage in the section, and another section including a pressure containment valve that selectively permits and prevents fluid communication with a flow passage in the section. The pressure containment valves are closed in response to disconnection of the sections. A method of containing pressure in sections of a chemical treatment assembly can include installing a pressure containment valve in each of the sections, the pressure containment valves being configured to close in response to disconnecting the sections. Another chemical treatment assembly can include an outer housing, a flow passage extending longitudinally through the outer housing, a chemical treatment positioned in the flow passage, and a pressure containment valve that selectively permits and prevents fluid communication with the flow passage through the pressure containment valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.