Wellbore fluid treatment process and installation

摘要

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.

主权项

1. A wellbore treatment tool comprising: a tubular body including a first open end, a second open end and a wall extending from the first open end to the second open end, the wall defining an outer surface and an inner diameter, with the first open end and the second open end providing access to the inner diameter; a port through the wall; a sliding sleeve valve acting as a closure for the port, the sliding sleeve actuable between a closed position closing the port and an open position wherein the port is open and the sliding sleeve valve including a seat exposed to catch and seal with a separate plug, the sliding sleeve valve being actuable from the closed position to the open position by creating a pressure differential across the seat when the plug is caught; a sealing element to isolate a mid region of the outer surface from the first open end and the second open end; and a setting mechanism for the sealing element operable to set the sealing element by compressing the first open end and the second open end toward each other, wherein the wall is no more than 12 meters long from the first open end to the second open end.