When wellhead valves fail, seize, or cannot be operated through conventional means, operators need a partner who can restore access safely and efficiently. UniServe's wellhead intervention and gate valve drilling service provides precisely that capability.

Capabilities

Our gate valve drilling systems are designed for onshore wellheads where conventional valve operation is no longer possible. We drill through failed gate valves under controlled conditions, maintaining well control throughout the operation.

Key capabilities include:

  • Gate valve drilling through seized or partially closed valves
  • Wellhead access restoration for workover and intervention
  • Trapped pressure identification and bleed-off
  • Mechanical wellhead remediation
  • Post-intervention well control verification

When Is This Needed?

Operators typically require gate valve drilling when:

  • Master or wing valves have seized in a partially open or closed position
  • Wellhead access is blocked by a failed valve that cannot be operated
  • Conventional valve repair or replacement is not possible without intervention
  • Trapped pressure behind a valve body needs to be safely managed
Close coordination between two technicians installing wellhead equipment
Proven Discipline

Every valve gets the same disciplined process.

Trapped pressure is verified, not assumed. Every gate valve drilling operation follows the same controlled, instrumented sequence — no shortcuts, regardless of how routine the wellhead looks.

Global Reach · Local Expertise

Need specialist support for a critical well operation?

Early technical engagement reduces uncertainty, improves safety outcomes, and prevents minor field problems from becoming major operational events.