Service 05 / 06

Water Shut-off

Targeted chemical and polymer-gel treatments developed to reduce unwanted water production while protecting hydrocarbon flow.

Capability overview

Built around the decision, not just the equipment.

Excess water can increase operating cost, constrain production, and lead to the premature abandonment of otherwise valuable wells. Water shut-off treatments use carefully selected materials—including cement, polymers, and polymer gels—to reduce unwanted water flow.

01

The operational challenge

Understand the condition before choosing the response.

High water production can have several causes, including channeling, fracture flow, behind-pipe communication, or entry from a specific interval. Applying a treatment before diagnosing the likely source can reduce placement control and treatment value.

02

Zima's approach

Connect technical scope with field execution.

The service follows a diagnosis-led path: review production and well information, identify the most credible water mechanism, select a compatible shut-off or conformance system, plan placement, and define post-treatment surveillance.

Scope

What the capability includes.

  • Produced-water source assessment
  • Treatment selection and planning
  • Polymer and polymer-gel injection
  • Selective reduction of unwanted water flow
  • Treatment of excessive gas where applicable
  • Production-recovery support

Delivery workflow

A controlled path from definition to technical closeout.

The exact program is adapted to the well, operating environment, available data, and the client's decision criteria.

  1. Water-source diagnosis

    Review production history, completion information, available logs, well integrity, and the behavior of the water increase.

  2. Treatment selection

    Match the likely flow path and reservoir conditions with an appropriate polymer, gel, cement, or combined treatment concept.

  3. Placement planning

    Define fluid volumes, mixing and pumping sequence, isolation needs, quality checks, and operational contingencies.

  4. Execution and surveillance

    Document treatment placement and compare post-job water and hydrocarbon performance with the agreed evaluation plan.

Typical deliverables

Information the operating team can use.

  • Water-source and treatment-candidate assessment
  • Fit-for-purpose treatment recommendation
  • Mixing, placement, and pumping program
  • Execution and quality-control records
  • Post-treatment surveillance plan

Where it applies

Configured for the operating context.

  • Wells constrained by produced-water handling
  • Near-wellbore unwanted water entry
  • Fracture or high-permeability channel control
  • Selected behind-pipe communication scenarios
  • Production-restoration and well-life extension programs

Operational value

Lower water handling burden and a practical route toward restoring productive well performance and improving recovery.

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