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Well intervention and workover

Well intervention and workover operations are performed for maintenance purposes to keep production levels up, but also for remedial objectives. They’re mainly carried out on oil or gas producing wells at any step of their productive life. These oilfield maintenance operations are executed to optimize oil or gas production and keep it to a satisfactory level. Well intervention operations mean important investments in the life of the well. They represent indeed an important part of the total field development costs. Reducing these development expenses with cost-effective alternatives is a good option for increasing Field Economics.

A Casing Patch for Well Intervention

Well intervention operations are for Saltel Industries a High Value Added Service Offer provided to exceed your current and future downhole requirements.

Saltel Industries offers a remedial solution for perforation shut off using a thin walled Patch run on tubing or drillpipe which allows access to the well below (for packers, tubing anchors….), seals effectively, and holds significant differential pressures. Saltel's remedial tool (Saltel Expandable Steel Patch - SES Patch) is conveyed on tubing or drill pipe with drilling or workover Rigs, Snubbing units, and Coiled tubing. SES Patch is expanded downhole in situ, creating a high pressure inner lining inside the casing. Initially designed for perforation shut-off the technology is also suitable for repairing short lengths of damaged or corroded casing.

SES Patch meets several downhole requirements, among which you may find the following applications:  

  • New Completion Repair Applications
    • Completion module repair
      • ICDs repair and Damaged Frac Port or Leaking DV Tool Repair, with Saltel Expandable Steel Patch
  • Leaking Collar or damaged coupling repair with Saltel Expandable Steel Patch
  • Enhanced Oil Recovery
    • Perforations shutoff
      • Water shut off with Saltel Expandable Steel Patch
      • Gas shut off with Saltel Expandable Steel Patch
    • Modifying injections profiles
    • High Temperature Remedial applications
      • SAG-D Remedial interventions with Saltel Expandable Steel High Temperature Patch
      • CSSRemedial interventions with Saltel Expandable Steel High Temperature Patch
  • Standard Completion Repair Applications
    • Damaged casing Repair with Saltel Expandable Steel Patch
    • Damaged tubing Repair with Saltel Expandable Steel Patch
    • Damaged sand screen Repair with Saltel Expandable Steel Patch
  • Remedial Cementation Integrity (In case a squeeze job is required, a complimentary SES patch can be used to isolate perforations after the squeeze job. Although the squeeze job is successful in providing a cement barrier, the SES Patch is used to seal off the perforations and protect the cement from both fluids and pressures of the wellbore, ensuring casing integrity)

Casing Patch: the cost-effective alternative to Workover

Well Intervention with SES Patch prevents not only from blow outs and collapse of the damaged strings, but it also eliminates or drastically reduces the need for a major workover Let's take the case study about Tubing Repair with SES Patch in Algeria: "The workover of the Cr13 tubing string would have been very expensive and a tubing patch was determined to be the most reliable and cost effective solution."

 

 

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