Apparatuses and methods for scraping
US11293267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Nov 27, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/121
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed embodiments include an apparatus, such as a plunger for oil and/or gas wells, that includes one or more scraping features. The scraping feature may include at least one ridge configured to scrape material, such as paraffins, asphaltenes, salt, hydrates, debris, solids, etc., from an inner surface of a tubular body and direct the scraped material away from the plunger body. A disclosed method for scraping material from a tubular body includes releasing a plunger within the tubular body, the plunger having a body with an outer surface and a scraping feature on the outer surface that includes at least one ridge; scraping material from an inner surface of the tubular body with the ridge of the scraping feature; and directing the scraped material away from the plunger body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.