Well Construction | Pressure-Actuated Re-Closable Toe Sleeve

Pressure-actuated, re-closable toe sleeve

Opens with pressure, closes with coiled tubing

 

The Multistage Unlimited® PACT toe sleeve is a simple, sure way to achieve initial formation access for multistage completions. It also can be re-closed later using a coiled-tubing-deployed tool. The sleeve is opened by increasing pressure to the specified level, after which the sleeve shifts open. You can then perform a pre-frac injection fall-off test, flush the wellbore to facilitate pumping completion tools to the toe, or simply execute the first-stage fracture.

Features

• Run and cemented as part of the casing string
• Sleeve can be re-closed using a coiled-tubing-deployed tool
• Requires a bottom sleeve-locator sub
• Works with all sleeve-type or plug-and-perf completions
• Compatible with cemented or open-hole completions
• Compatible with high-density cement
• Eliminates the need for a tubing-conveyed-perforating run
• Does not interfere with cementing operations
• Mandrel design matches or exceeds casing string yield torque ratings

Specifications

Casing size, in. / mm4.5 / 114.34.5 / 114.34.5 / 114.3
Casing gradeP110P110L80
Casing weight, lb / kg 11.6 / 17.26 13.5 / 20.0911.6 / 17.26
OD, in. / mm5.850 / 148.65.850 / 148.65.850 / 148.6
ID, in. / mm3.920 / 99.6 3.850 / 97.8 3.920 / 99.6
Length, in. / m34.979 / 0.8948.604 / 1.2334.979 /0.89
Number of flow ports999
Flow port area, in.2 / cm27.07 / 45.67.07 / 45.67.07 / 45.6
Tensile rating, lb / daN279,000 / 124,10538,000 / 150,350211,000 / 93,857
Torque rating, ft-lb / nM9,000 / 12,2029,000 / 12,2026,500 / 8,813
Burst strength (abs), psi / MPa15,180 / 104.715,125 / 104.311,000 / 75.9
Burst strength (diff), psi / MPa10,690 / 73.712,410 / 85.67,780 / 53.7
Collapse strength (abs), psi / MPa15,060 / 103.915,125 / 104.311,000 / 75.9
Collapse strength (diff), psi / MPa7,580 / 103.910,680 / 73.76,350 / 43.8
Max burst disk rating, psi / MPa10,500 /72.4010,500 / 72.409,000 / 62.05