Inflatable Bridge Plug
The Permanent Inflatable Bridge Plug is used for isolating zones in open-hole or in casing. This tool is not retrievable.
The Permanent Inflatable Bridge Plug may be used in vertical, deviated, or horizontal wells. No rotation is required to set the packer, however six right hand rotations are required to release the tubing string from the packer.
Inflatable packers elements for this tool are 1.67 m. (66 Inches) in length. High strength aircraft cable is used to provide good expansion characteristics in washed out or irregular well bores, as well as to provide high differential pressure capabilities. In addition, optional exposed cable packer elements are available to provide superior anchoring in casing.
A running tool is required for running the Permanent Inflatable Bridge Plug into the well, and for disconnecting the tubing string from the Bridge Plug. Six right-hand rotations are required at the tool for disconnecting.
The primary application for Permanent Inflatable Bridge Plug Assemblies is to block water production zones in a well. As the life of a well increases, water coning may occur. Also, water production may start occurring from fractures or channels. Inflatable packers provide an effective seal in open hole or casing, to block this unwanted water production.
ABANDONMENT OF WELLS
Permanent Inflatable Bridge Plug Assemblies may be used for abandonment of wells. For these applications, well operators want a very economical, but yet very effective seal in open hole or in casing. For these applications, cement may also be used directly above the plug for additional long-term seal integrity.
RE-ENTRY WELLS & WHIPSTOCKS
Permanent Inflatable Bridge Plug Assemblies may be used for abandonment of the original wellbore in re-entry wells or whenever a whipstock is required.
Permanent Inflatable Bridge Plug Assemblies may be used for squeeze cementing zones and left as a cement retainer in open hole or in casing. These packers provide greater clearance for running tools into a well where there are restrictions such as casing patches. In addition, the long seal section provided with an inflatable element is more effective in older wells where casing may be partially corroded. These packers are particularly effective for squeeze cementing required to abandon old wells.
For cement retainer applications, a check valve assembly or a latch-down plug catcher assembly must be installed at the bottom of the tool.
|Element O.D.||Minimum Tool I.D.||Element Seal Length||Thread
|3.12||79||0.75||19||51||1.29||2 3/8" EUE|
|3.50||89||1.25||31||51||1.29||2 3/8" EUE|
|4.25||108||2.00||50||48||1.22||2 3/8" EUE|
|5.50||140||2.50||63||49||1.24||2 3/8" EUE
2 7/8" EUE
|6.75||171||2.50||63||49||1.24||2 3/8" EUE
2 7/8" EUE
|7.50||191||3.50||89||48||1.22||3 1/2" EUE|
|9.38||238||4.50||114||47||1.19||3 1/2" EUE|
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