Frangible pressure control plug, actuatable tool including the plug, and method thereof

A frangible pressure control plug comprising:

• a first portion of a body adjacent a first end of the plug;
• a second portion of the body adjacent a second end of the plug, the second portion attached to the first portion in a first condition;
• a groove in the body interposed between the first portion and the second portion;
• and,
• a bore within the body passing through the first end and the first portion and inaccessible from the second end;
• wherein, fluid communication between the bore and the groove is prevented in the first condition and allowed in a second condition, and wherein the second portion is threaded and the first portion is not threaded.

A pressure actuatable tool comprising:

• a sleeve having a wall, the sleeve having an aperture through the wall;
• a frangible pressure control plug plugging the aperture and preventing fluid communication between an interior and an exterior of the sleeve in a first condition, and providing fluid communication between the interior and the exterior of the sleeve in a second condition, the plug including:
• a first portion of a body adjacent a first end of the plug;
• a second portion of the body adjacent a second end of the plug, the second portion attached to the first portion in the first condition;
• a groove in the body interposed between the first portion and the second portion;
• a bore passing through the first end and the first portion and inaccessible from the second end;
• and
• wherein fluid communication between the longitudinal bore and the groove is prevented in the first condition and allowed in a second condition, and wherein a critical fluid pressure in the interior of the sleeve moves the first portion away from the second portion in the second condition.

A pressure actuatable tool comprising:

• a sleeve having a wall, the sleeve having an aperture through the wall;
• a frangible pressure control plug plugging the aperture and preventing fluid communication between an interior and an exterior of the sleeve in a first condition, and providing fluid communication between the interior and the exterior of the sleeve in a second condition, the plug including:
• a first portion of a body adjacent a first end of the plug;
• a second portion of the body adjacent a second end of the plug, the second portion attached to the first portion in the first condition;
• a groove in the body interposed between the first portion and the second portion;
• and,
• a bore passing through the first end and the first portion and inaccessible from the second end;
• wherein fluid communication between the longitudinal bore and the groove is prevented in the first condition and allowed in a second condition and wherein the aperture includes a securement feature for retaining the second portion and not the first portion.

A method of actuating a tool using a pressure control plug, the plug including a first portion of a body adjacent a first end of the plug, a second portion of the body adjacent a second end of the plug, the second portion attached to the first portion in a first condition, a groove in the body interposed between the first portion and the second portion, and a bore passing through the first end and the first portion and inaccessible from the second end, the method comprising:

• inserting the plug in an aperture of a sleeve of the tool, with the second end of the plug facing an interior of the sleeve;
• increasing pressure within the sleeve and directing the pressure to the groove towards the first portion;
• and,
• actuating the tool by applying a critical pressure that fractures the first portion from the second portion in the second condition of the plug to provide fluid access from the sleeve to the groove and bore.