Subsea Plug & Abandonment

DeepRange and 7Series P&A System

Reduce Your P&A Liability with the Subsea P&A Dream Team

7 Series

Combining the Wild Well DeepRange cementing tool with our 7Series intervention tool creates an unparalleled plug and abandonment (P&A) system that delivers a highly cost-effective, regulatory-approved solution in a rigless, riserless package.

Requiring only a multiservice vessel for deployment, our P&A system offers a proven alternative to conventional, rig-based P&A operations while delivering enhanced performance.

Rapid Mobilization, Reliable Operation

For 40 years, Wild Well has supplied operators with industry-leading service whenever and wherever it's needed. The DeepRange and 7Series tools continue that dedication to quality operations by offering subsea P&A for a wide-range of applications.

Our wholly in-house approach includes operational experience from a wide range of engineers that include subsea well specialists. The Wild Well Advanced Engineering group complements this high level of expertise with services such as computational fluid dynamic, structural, and thermal analyses.

Covering Every Step of Your Subsea P&A Operation

Step 1: Pre-operational engineering and planning comprises creating and resolving interfaces with the well and vessel of choice, developing detailed operating procedures, and creating a project execution plan.

Step 2: Crews perform the temporary abandonment of the well, cutting and pulling the tubing before installing a cast-iron bridge plug and packer.

Step 3: The upper assembly — consisting of an isolation bushing, tubing-conveyed perforating guns, and a telescoping joint — are landed and latched into the packer.

Step 4: The upper tubing is conveyed and the lower standard perforating guns are fired into the B annulus.

Step 5: Circulation is established through the tubing, into the lower perforations, up the B annulus, out through the upper perforations, and back up the production annulus. The isolation bushing diverts flow to the return lines.

Step 6: The binary plug is circulated into the B annulus. After waiting on the cement to harden, a mandatory pressure test is performed.

Step 7: The upper tubing is conveyed and the lower standard perforating guns are fired into the C annulus.

Step 8: Circulation is established through the C annulus as with the B annulus before.

Step 9: The binary plug is circulated into the C annulus. The plug is left in a "balanced" condition with the production annulus. After waiting on the cement, testing is performed.

Step 10: The upper assembly is unlatched from the packer and pulled from the well. A cast-iron bridge plug is set above the highest perforations and cement is bailed as per regulations.

Hardware Highlights

7Series Intervention System

  • Certified to 10,000 ft and 10,000 psi maximum working pressure
  • Redundancy in the environmental and well barriers
  • 30-second emergency quick disconnect (EQD) with dual-disconnect points on all connections
  • Shear seal ram can shear almost any toolstring, including 3 1/2-in., 135,000 psi drillpipe
  • Dual redundant controls systems
  • 7 3/8 bore handles the largest crown plug

DeepRange Cementing Tool

  • Rigless, riserless
  • Resilient binary plug using resin and cement
  • Coiled tubing circulation to wellbore
  • Proven tooling methodology
  • Robust, ROV-driven technology
  • Minimally invasive procedure that maintains wellbore integrity
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