Providing a low pressure condition in a wellbore region

Details Providing a low pressure condition in a wellbore region Providing a low pressure condition in a wellbore region

2005-11-22

2005-11-22

Dang, Hoang (Department: 3672)

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

C116S055000, C116S163000, C116S311000, C175S004540

Reexamination Certificate

active

06966377

ABSTRACT:
An apparatus and method includes positioning a string in a wellbore, the string having a surge chamber. A closure member is provided below the well surface, with the surge chamber defined at least in part by the closure member. At least one port to the chamber is opened to create a fluid surge into the surge chamber and a local low pressure condition in a wellbore region.

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