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Casing Repair

Restore completion integrity after casing damage

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Use through-tubing technology to rapidly remediate corroded and worn casing

Casing damage is often considered a problem of mature wells, suffered only after years or decades of corrosion, erosion, or wear fatigue, However, it is increasingly occurring in newer wells because of the wear incurred while installing initial casing in long horizontal and tortuous wellbores.

Casing repair options depend on the size and condition of the casing, the depth and extent of the leak or damage, and the productivity (economics) of the well. Schlumberger offers a full range of casing isolation, repair, and replacement technologies.

A pipe cut with PowerCutter.

Isolate the Damage

Squeeze cement into the damage to restore isolation without impeding wellbore ID, or place a cement plug or mechanical packer or plug to isolate the damaged zone.

SqueezeCRETE

Remedial cementing solution

Repair extremely small gaps or fractures in wellbores at the microscale.

BluePlug Max CMR

High-pressure wireline- or tubing-set cement retainer

Bidirectional barrier in cased hole wells for well abandonment or remedial cementing below the retainer.

Patch the Casing

Run a patch through tubing across the damaged zone, and isolate the damaged casing by cementing it in place or inflating it to create a complete seal while retaining nearly full wellbore ID.

Saltel Expandable Steel Patches

Repair and remediation solutions

Repair a zone of damaged tubing or casing, shut off unwanted perforations, or seal a leaking sliding sleeve.

Saltel Frac Packer

Based on Saltel Xpandable technology

Improve sealing reliability, especially in irregular boreholes.

Saltel Annular Zonal Isolation Packer

Using Saltel Xpandable technology

Minimize costs and NPT with robust, high-pressure expandable steel annular packers that rapidly isolate zones, even in oval boreholes.

External Casing Packer

Based on Saltel Xpandable technology

Set at low pressures to achieve zonal isolation.

Cut and Reconnect the Casing

Cut off the damaged casing and leave a stub that can be connected to a new casing string.

PowerCutter

Precision tubular cutter

Cleanly cut tubing or drillpipe with no moving parts or chemicals.

Casing Reconnect

Metal-to-metal, gas-tight casing repair system

Simplify casing repairs to keep drilling programs on schedule and secure well integrity for P&A.

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Case Study Eni Saves 3 Months of Rig Time By Avoiding Sidetrack

After perforating guns fired prematurely, Eni used a Casing Reconnect system to repair a damaged casing with a metal-to-metal seal, offshore Mexico.

Case Study North Sea Operator Prevents Sidetrack by Replacing Leaking Liner

Casing Reconnect system creates a metal-to-metal seal without reducing the liner ID, saving days of rig time.

Case Study Expandable Steel Packers Reduce Costs 30% During Stage Cementing in Argentina

Lost circulation zone successfully isolated in deviated, undergauge boreholes.

Case Study Casing Reconnect System Enables Gas-Tight Casing and Wellhead Repair, Averting Sidetrack Contingency

Metal-to-metal solution helps restore well integrity for gas lift, offshore Qatar.

Tech Report Saltel Expandable Steel Patches Seal Casing Leaks in Two Cyclic Steam Stimulation (CSS) Wells

High-temperature patches extend well life despite hostile well conditions.

Product Sheet Saltel Expandable Steel Patches Datasheets

Detailed specifications for Saltel expandable steel patches.

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