Patent · US Expired

Method and apparatus for lifting liquids from gas wells

US7210532B2 · kind B2 · utility

4Cited by
5References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 2004
Grant dateMay 1, 2007
Priority date
Expiry dateFeb 2, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/2934
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A downhole apparatus and method for maintaining or reducing the level of liquids at the bottom of a gas producing well is described including a constriction or throat section, such as a Venturi, in which a production gas flow from the well is used to generate a low pressure zone having a pressure less that the ambient formation gas pressure and at least one conduit providing a flow path from an up-stream location within said well to said low pressure zone. The conduit may have additional opening for production gas to enter the conduit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.