Rigless Well Intervention
التدخل في الآبار دون جهاز حفر
- Next date
- Available in-house
- Fees from
- —per delegate
- Formats
- In-house training0 sessions
- Duration
- 5 daysCertificate
Overview
Rigless well intervention covers the wide range of well services carried out without a drilling or workover rig, using slickline, electric line, coiled tubing, snubbing and hydraulic workover units, pumping services and light well intervention vessels offshore. These methods allow operators to diagnose and fix well problems, restore and increase production, and maintain well integrity at a fraction of the cost and time of a rig workover. As fields mature and rig costs remain high, rigless intervention has become a key tool for production enhancement and late-life asset management in the Middle East and around the world.
This course provides a practical understanding of rigless intervention methods, their capabilities and limitations, and how to select, plan and execute them safely. Participants learn well diagnostics, candidate selection and the comparison of intervention options, including slickline, wireline, coiled tubing, snubbing and hydraulic workover units. The course covers common interventions such as water and gas shut-off, scale and sand cleanout, stimulation, reperforation, plug setting, tubing repair and artificial lift changes. It also explains pressure control equipment, barrier management, simultaneous operations, risk assessment, offshore and subsea intervention, cost and value assessment and lessons learned from intervention campaigns.
Objectives
- Explain the range of rigless intervention methods and their limitations
- Diagnose well problems and select candidates for intervention
- Compare slickline, wireline, coiled tubing, snubbing and hydraulic workover options
- Plan common interventions such as shut-off, cleanout and reperforation
- Apply pressure control equipment and barrier management principles
- Manage risks, simultaneous operations and offshore intervention challenges
- Evaluate the cost, value and results of intervention campaigns
Who should attend
Production, petroleum and well intervention engineers, well services supervisors, asset managers and field operations staff.
Training methodology
The course combines explanation of intervention technologies with case-based exercises using real well data, completion schematics and production histories. Participants diagnose problem wells, rank intervention candidates by expected value and select the most suitable rigless method for each case. Intervention programmes, barrier diagrams and risk assessments are prepared for typical jobs. Videos and photographs of equipment and operations help participants understand practical constraints. Case studies of successful and failed intervention campaigns are analysed in groups, and each day ends with a short quiz and discussion.
Programme outline
Day1Rigless Intervention Overview and Well Diagnostics
- The value of rigless intervention compared with rig-based workovers in mature fields
- Overview of rigless methods: slickline, wireline, coiled tubing, snubbing and pumping
- Common well problems: low productivity, water and gas breakthrough, scale and integrity issues
- Well diagnostics using production tests, nodal analysis and surveillance data
- Candidate selection and ranking of wells by expected production gain and cost
- Completion schematics, restrictions and the access constraints for intervention tools
- Practical exercise: diagnosing a set of problem wells and ranking intervention candidates
Day2Intervention Methods and Equipment
- Slickline and wireline capabilities, their limits and their typical intervention applications
- Coiled tubing capabilities for cleanouts, stimulation, milling and nitrogen lifting
- Snubbing and hydraulic workover units for live well work and heavier interventions
- Pumping services for bullheading, acidizing, scale treatments and well kills
- Pressure control equipment, lubricators, BOPs and their testing before operations
- Selecting the right intervention method based on objective, well conditions and cost
- Practical exercise: selecting intervention methods for five different well problems
Day3Production Enhancement Interventions
- Water shut-off methods using mechanical plugs, cement and chemical systems
- Gas shut-off and the management of gas breakthrough in oil producers
- Sand and scale cleanouts and the prevention of their recurrence
- Reperforation and adding new perforations to access bypassed reserves behind casing
- Matrix stimulation and acid treatments placed without a workover rig
- Artificial lift interventions such as gas lift valve changes and ESP-related work
- Practical exercise: designing a water shut-off intervention for a high water cut well
Day4Well Integrity and Repair Interventions
- Barrier management and well integrity checks before and after interventions
- Tubing leaks, patches and straddle systems installed without a rig
- Subsurface safety valve repairs, insert valves and the procedures used to lock valves open
- Plug setting for zonal isolation, suspension and preparation for abandonment
- Annulus pressure remediation and the injection of sealants to stop small leaks
- Offshore and subsea intervention using light well intervention vessels and specialised equipment
- Practical exercise: preparing an intervention programme for a well with a tubing leak
Day5Planning, Risk and Campaign Management
- Intervention programme preparation, detailed procedures and contingency plans for each job
- Risk assessment, simultaneous operations and permit to work for intervention jobs
- Campaign planning, logistics and the efficient use of intervention equipment and crews
- Measuring results, intervention economics and the value of production gains
- Lessons from intervention campaigns and from incidents during rigless operations
- Group exercise: planning a rigless intervention campaign for a mature oil field
- Final assessment and discussion of intervention priorities in participants' own fields
Dates and fees
There are no scheduled dates for this course at the moment. Request it as in-house training, or ask us about the next date.
Certificate
Every delegate who attends the full programme receives a Harfard Technology certificate of completion stating the course title, duration, dates and venue.
Frequently asked questions
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