Core Completions offers a comprehensive completion service providing design, engineering and detailed operational planning on a field wide or well specific basis.

We tailor our approach to the needs of our clients delivering cost effective high quality solutions based on our industry expertise and established global network of associates.

Our services can be offered either in isolation or as part of an integrated multidisciplinary approach to support your project in the UK or internationally.

We offer

A service that delivers results where it counts, both in the field and in the flowline

Field Development Planning


  • Conceptual well designs
  • Well cost estimates & full field CAPEX estimates
  • Failure analysis & lifecycle well OPEX estimates
  • Identification of innovative cost reduction opportunities

  • Concept risk identification & ranking
  • Downhole reliability modelling
  • Offset well analysis
  • Regional industry benchmarking

Completion Design


  • Conceptual & detailed completion design
  • Completions, workover & intervention planning
  • Sandface completion design & sand control recommendations
  • Tubing stress analysis services
  • Detailed completion design and FEED studies
  • Sand control analysis and selection
  • Frac pack and gravel pack detailed design services
  • Perforating system design, testing and optimisation

  • Intelligent well system design and specification
  • Formation damage risks and management
  • Downhole metallurgy studies
  • Completion equipment selection and specification
  • Subsea equipment selection and specification
  • Flow assurance strategies
  • Production optimisation through enhanced well performance

Operational Well Planning


  • Completion and workover installation programme
  • Well cost estimate
  • Complete the well on paper
  • Operational risk assessment
  • Service company requirements
  • Completion and workover installation procedures

  • Intervention design and detailed procedures
  • Stimulation design and detailed procedures
  • Torque and drag analysis services
  • Risk assessments and risk management

Managing Completion Operations


  • Complete the Well on Paper
  • Operational readiness review
  • Operational kick-off (pre-spud) meeting
  • Experienced well-site supervision
  • 24/7 onshore operational support

  • Daily time and cost tracking vs AFE
  • Downhole troubleshooting service
  • Critical pressure test management
  • Weekly operational summary report
  • Review, collate and feedback lessons learned for continuous improvement

Technical Assurance


  • Peer Review
  • Peer Assist
  • Completions Standards
  • Well Control Standards
  • Best Practice

  • Competent Persons Report
  • Expert Witness
  • Well integrity consulting services
  • New technology selection and qualification
  • Failure analysis including failure investigations and finite element analysis

For further details about any of these services please contact us at or call us direct on +44 (0) 203 7450 850