LatchRite® Pre-Milled Window Multilateral System


The LatchRite® junction construction system provides a high-strength TAML Level 4 junction with sand control and full gauge access to the lateral and lower mainbore. It utilizes an industry-proven, patented protected multilateral washover operation and achieves hydraulic integrity using cement. The LatchRite system can also be used to construct a TAML Level 2 junction that eliminates the disadvantages of conventional milling.


  • Applicable to new wells
  • Completed as Level 2, 4 or 5 junction
  • Can be developed bottom-up or top-down as required
  • Mechanical and hydraulic integrity of Level 4 junction with cement
  • Minimal milling required to re-open the mainbore
  • Full-gauge ID through completed mainbore and lateral
  • Permanent downhole latch coupling reference for depthand orientation control
  • Compatible wireline/coiled conveyed re-entry whipstock
  • Junction can be completed with IsoRite® isolated multilateral completion system to lateral
  • Junction can be completed with Level 5 FloRite® multi-string multilateral completion system
  • Compatible with all SmartWell® designs

LatchRite® Pre-Milled Window Multilateral System (TAML Level 2 or 4)

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Summary LatchRite® pre-milled window multilateral system reduces installation time and saves operator an estimated US$2.5 million Jul 2015
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