Experimental method for determining flow patterns in vertical wellbore of gas wells at high-pressure conditions
US11773714B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2023 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Apr 26, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An experimental method for determining flow patterns in vertical wellbore of gas wells at high-pressure conditions, which falls within the technical field of deliquification for gas reservoirs. The method comprises: collecting target block parameters; Developing physical simulation experiment to measure the liquid holdup of vertical wellbore; Constructing similarity dimension number to characterize gas density and change with liquid holdup to represent flow similarity of different gas velocities at different pressures; Utilizing equal liquid holdup to represent flow similarity, fitting similarity dimension coefficient, normalizing flow under different pressure conditions to same similarity dimension number, realizing coincidence of change cure of liquid holdup of normal pressure and medium pressure with similarity dimension number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.