WELLBORE FLUID TREATMENT PROCESS AND INSTALLATION

• US 20110067890A1
• Filed: 06/08/2009
• Published: 03/24/2011
• Est. Priority Date: 06/06/2008
• Status: Active Grant

• Current Assignee: Packers Plus Energy Services (USA), Inc.
• Original Assignee: Packers Plus Energy Services (USA), Inc.
• Inventors: Themig, Daniel Jon
• Granted Patent: US 8,511,394 B2
• Time in Patent Office: Days
• US Class Current: 166/387
• CPC Class Codes: E21B 33/124 Units with longitudinally-spaced plugs for isolating the intermediate space
• CPC Class Codes: E21B 43/12 Methods or apparatus for controlling the flow of the obtained fluid to or in wells E21B43/25 takes precedence; valve arrangements E21B34/00

Abstract

A method for isolating a perforated interval of a well, the well including a casing liner having a wall with a plurality of perforations therethrough forming the perforated interval, the method comprising: providing a tool including a tubular body including an inner diameter and an outer surface, a first open end and a second open end, the first and second open ends providing access to the inner diameter; and a sealing element to isolate a mid region of the outer surface from the first open end and the second open end; positioning the tool in the well with the tubular first open end adjacent and above an uppermost perforation of the perforated interval and the second open end adjacent and below a lowermost perforation of the perforated interval; and installing the tool in the well with the sealing element sealing between the tubular body and the casing wall above the uppermost perforation of the perforated interval and below the lowermost perforation of the perforated interval to isolate fluid flow between the perforations and the inner diameter.

Claims

1. A wellbore treatment tool comprising:

a tubular body including an inner diameter and an outer surface, a first open end and a second open end, the first and second open ends providing access to the inner diameter, an installation assembly for installing the tubular body in a casing string; and

a sealing element to isolate a mid region of the outer surface from the first open end and the second open end.

2. A wellbore installation comprising:

a wellbore liner including a perforated interval;

a tubular member installed over the perforated interval in the inner diameter of the wellbore liner, the tubular member including an open upper end adjacent an upper limit of the perforated interval, an open lower end adjacent a lower limit of the perforated interval; and

a sealing element settable to create a seal between the tubular member and the wellbore liner in a position between the open upper end and the perforated interval and between the open lower end and the perforated interval.

3. A method for isolating a perforated interval of a well, the well including a casing liner having a wall with a plurality of perforations therethrough forming the perforated interval, the method comprising:

providing a tool including a tubular body including an inner diameter and an outer surface, a first open end and a second open end, the first and second open ends providing access to the inner diameter; and

a sealing element to isolate a mid region of the outer surface from the first open end and the second open end;

positioning the tool in the well with the tubular first open end adjacent and above an uppermost perforation of the perforated interval and the second open end adjacent and below a lowermost perforation of the perforated interval; and

installing the tool in the well with the sealing element sealing between the tubular body and the casing wall above the uppermost perforation of the perforated interval and below the lowermost perforation of the perforated interval to isolate fluid flow between the perforations and the inner diameter.