Crossover service tool

{
  "id": "MLC-T-OAG-000904",
  "term": "Crossover service tool",
  "field": "Oil and gas",
  "definition": "A gravel-pack and frac-pack service tool that redirects slurry pumped down the work string through crossover ports into the annulus between the screen and the casing. Clean returns travel through the screen and washpipe and back up the annulus above the packer. Raising or lowering the string places the tool in circulating, squeeze or reverse positions, and it is pulled out of the packer after the treatment.",
  "subject": "Well Completions",
  "url": "https://mlchart.com/terminology/oil-and-gas/crossover-service-tool/"
}