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MEX-BLOCK OB

MEX-BLOCK OB is a double-action reversible invert emulsion drilling fluid designed for completion of wells in hydrophilic conditions, and for safe well killing.

The system may be mixed with any oil base, including diesel fuel; it is designed for well completion in open hole conditions, and for wells requiring prompt removal of mud cake from borehole for continuous production. MEX-BLOCK OB is able to convert hydrophobic conditions into hydrophilic conditions through pH adjustment.

SCOPE OF APPLICATION

  • in injection wells
  • in case of rock swelling
  • in wells with abnormally low reservoir pressure
  • in carbonate formations where acid treatment is required
  • in wells with hydrophobic reservoirs, where any additional water may negatively affect oil recovery
  • in wells with complex completion bottom-hole assemblies, where mud should contain no solids

MEX-BLOCK ОВ system is used to rectify implications related to any fluid losses when conducting workover in high-permeable and porous reservoirs by means of smooth gradual well killing.

ADVANTAGES

  • stable at extreme temperatures
  • easy to mix
  • it does not require special equipment
  • easy destruction of mud cake
  • prevention of any deterioration of the reservoir properties
  • no additional costs for reclamation
  • wide range of densities

 

  • 21 october, 2015

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MEX-BLOCK OB