Patent · US Active

Upgoing drainholes for reducing liquid-loading in gas wells

US9080435B2 · kind B2 · utility

0Cited by

12References

10Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Baoyan Li · Spring, US
Harald Grimmer · Celle, DE
Volker Krueger · Celle, DE

Key dates

Filing date	Aug 25, 2011
Grant date	Jul 14, 2015
Priority date	—
Expiry date	Dec 15, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/305
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Gas from a tight gas formation may be produced using a drain hole having a juncture to a main wellbore and a terminal end at a depth higher than the juncture. The terminal end may be positioned in the tight gas formation.

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