Rigless Intervention Best Practices for Coiled Tubing, Slickline, and Wireline

Disciplines: Completions | Production and Operations

Course Description

This short course is designed to provide knowledge and understanding of surface equipment, downhole tools, various applications, and operational contingencies for rigless well interventions involving coiled tubing, slickline, or wireline.  The participants will learn first-hand knowledge of the capability of each intervention and what to consider when choosing which intervention method to utilize.  The course will cover recommended risk mitigation and well control barriers as well as best practices gained from years of experience and application.  To further illustrate the intervention methods utilized to resolve well issues or enhance well performance, real world examples for coiled tubing, slickline and wireline will be presented and discussed.

Upon completion of this course, participants will be able to:

  • Recognize and explain function of CT, Slickline, and wireline equipment
  • Recognize and explain function of the Pressure Control Equipment and Bottom-hole assembly’s for coiled tubing, slickline and wireline interventions.
  • Identify common applications for coiled tubing, slickline, wireline interventions
  • Assess the pros and cons of each intervention and evaluate which intervention type to utilizes for various job problems
  • Identify and describe critical job design considerations for each job type of intervention that should be present in a contractor proposal
  • Discuss risks associated with each each type of intervention and the corresponding mitigation controls recommended for each job type.
  • Enhance rigless intervention safety, efficiency, and success by applying industry best practices and lessons learned for each job type. 

Learning Level


Course Length

1 Day

Why Attend

Poorly understood and inefficiently planned rigless interventions can create costly, and often dangerous, problems for operators. These issues can be avoided with the knowledge, best practices, and lessons provided in this short course.

Attendees of this course will benefit from the increased knowledge of rigless, live well interventions including coiled tubing, slickline, and wireline. In addition, course attendees will review engineering design considerations, recommended safety policies, and best practices that can positively affect operations.

Who Attends

This course is designed for engineers, senior operations personnel, and company representatives with zero-to-intermediate well intervention knowledge who are assigned to evaluate, plan, and/or execute coiled tubing, slickline, or wireline interventions. 

Special Requirements

Computer is optional but would be beneficial as the participants may wish to view resources that the instructor will share.


0.8 CEUs (Continuing Education Units) are awarded for this 1-day course.

Cancellation Policy

All cancellations must be received no later than 14 days prior to the course start date. Cancellations made after the 14-day window will not be refunded. Refunds will not be given due to no show situations.

Training sessions attached to SPE conferences and workshops follow the cancellation policies stated on the event information page. Please check that page for specific cancellation information.

SPE reserves the right to cancel or re-schedule courses at will. Notification of changes will be made as quickly as possible; please keep this in mind when arranging travel, as SPE is not responsible for any fees charged for cancelling or changing travel arrangements.

We reserve the right to substitute course instructors as necessary.



Ron Zbitowsky is Chief Executive Officer for Well Intervention Consultants, L.L.C., specializing in coiled tubing and wireline intervention.  Prior to starting his company, Ron spent 21 years in the middle east as subject matter expert in rig-less well intervention for Saudi Aramco with focus on high H2S intervention.  Ron has 38 years of combined experience in drilling, reservoir, and production engineering in both conventional and unconventional gas reservoirs.  Prior to his tenure in the middle east, Ron worked for various exploration and production companies operating in the United States primarily in South Texas, Louisiana, Alabama, as well as in West Texas and New Mexico.  He received his Bachelor of Science degree in Petroleum Engineering from Texas A&M University in 1982. Ron is a licensed Professional Engineer in Texas and is a member of the Society of Petroleum Engineers.


Todd Green is a Production Engineering Technical Advisor with Saudi Aramco. A graduate from Texas Tech University, Todd entered the petroleum industry with BJ Services in 2006 as a field engineer in the Permian Basin Field of Texas, USA. During these two years of field work, he personally attended over 200 coiled tubing field operations.

In 2008, Todd accepted an international assignment as a desk engineer with Baker Hughes supporting all coiled tubing intervention in the southern area of Saudi Arabia. Todd served in this role until 2011 when he joined Halliburton in a similar roll in Saudi Arabia.

In 2014, He joined Aramco Americas in Houston to serve as a well intervention subject matter expert on a multidisciplinary upstream technical team. In 2018, Todd transferred to Dhahran, Saudi Arabia to work for Saudi Aramco as an instructor and technical advisor for production engineering at the Upstream Professional Development Center (UPDC). In 2020, Todd promoted to supervisor of the UPDC Technical Advisory Group. This group of senior professionals is responsible for creating and delivering professional development course to all Saudi Aramco Petroleum Engineers and Geoscientists.

Todd has experience designing and implementing a variety of CT interventions that include: Foam cleanouts, High angle cleanouts, CT high rate acid stimulations, Milling with CT, fishing Operations, CT e-line logging, Velocity string design and installation, Cementing with CT, Mechanical de-scaling, Utilizing multilateral seeking tools, Nitrogen lifting, Abrasive perforating with CT, and various drilling rig assist operations. Todd has also co-authored 9 SPE papers.

Todd is an active participant in SPE.  He has taught multiple SPE short courses at ICoTA and ATCE on Rigless Well Intervention. He also served as ICoTA International Chairman from 2016-2018 and most recently served as Conference Chairman for ICoTA/ SPE Annual conference March 2022.

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Disciplines: Completions | Drilling | Production and Operations | Projects, Facilities, and Construction