Patent · US Active

Using dynamic underbalance to increase well productivity

US9243474B2 · kind B2 · utility

1Cited by

5References

18Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Wei Zhang · Cupertino, US
Mark S. Holly · Singapore, SG

Key dates

Filing date	Apr 2, 2014
Grant date	Jan 26, 2016
Priority date	—
Expiry date	Apr 2, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B21/085
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An example underbalance pressure generator device includes a housing having a first end, a second end, and an implosion chamber between the first and second ends, one or more influx ports defined in the housing and enabling fluid communication between the implosion chamber and an exterior of the housing, at least one frangible member fixedly attached to the housing such that a pressure differential can be generated across the at least one frangible member between the implosion chamber and the exterior of the housing, and an actuation device within the housing and configured to rupture the at least one frangible member upon being triggered.

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