Fischer tropsch method for offshore production risers or oil and gas wells
US9005554B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 12, 2015 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Jan 12, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and an apparatus is disclosed that uses a gas lift tubing arrangement to produce synthetic hydrocarbon related products. Using the Fischer Tropsch process as an example, the tubing is packed with a suitable catalyst and then hydrogen and carbon monoxide are injected into the top of the tubing in a fashion similar to a gas lift process. As the gases travel past the catalyst, synthetic hydrocarbons are formed and heat is rejected. The synthetic hydrocarbons and water flow out of the bottom of the tubing and travel up the annulus to the surface. In some embodiments, this process is carried out in a producing well or a in producing riser. In a producing well or a producing riser, the production from the well which flows up the annulus cools the synthetic hydrocarbon derived products. In additional and alternate embodiments, this process can be used in non-flowing wells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.