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STUCK PIPE PREVENTION

HOMETRAINING COURSES > STUCK PIPE PREVENTION


STUCK PIPE PREVENTION

Stuck Pipe is, and historically has been, a major headache for the Oil & Gas Industry. Many wells have become more challenging in terms of well trajectories, hole size [smaller] and because we are more focussed on pushing the ‘drilling limit’. On the other hand, rigs are now equiped with better mud systems, downhole sensors and rotary steerable systems, to name a few, and many operators pay more emphasis on following the well in real time as well as having effective office to rig communication, no matter how remote the drilling location is.
It is easy to understand and accept that prevention of stuck pipe makes a lot more economical sense than even the best of freeing tools and techniques. The recovery from a stuck pipe situation can be very time consuming and often leads to the loss in hole of expensive downhole tools. 
The single most important factor in achieving successful prevention has to do with people. This applies to those working at the well site, as much as it does to those planning the well in the office. It requires a strong sense of teamwork. However, a good team at the well site cannot prevent stuck pipe if the planning and subsequent decision making is poor or sub-optimal. Neither will the office team be able to have a marked impact on events at the well site if the well site team does not manage the risks or use their skills and vigilance to detect or recognise signs from the hole. Stuck pipe incidents and associated costs will only drop to acceptable levels when everyone involved in drilling – i.e. the operating companies, drilling contractors and service companies – combine their efforts.

The Course Contents: -

The course homes in what the Office Staff needs to know and plan for and what the Field Staff need to know and implement. This includes: -
   Planning of a Well. Demonstrating the need for a concerted approach to prevent stuck pipe incidents. Showing the importance of planning [office and field] and to act as a Team
   Causes and Mechanisms. How to identify the cause and mechanism of a drill string or casing getting stuck with examples from the field [including those of the customer, if available]
   Hole Instability. How instability and associated solids packing off the drill string or casing is a major concern in the many wells we drill worldwide
   Team Exercise. Prevention of stuck pipe can be very successful if we act as a team. The Exercise will demonstrate that we must recognize the signs and take timely decisions. Selected team leaders will present the outcome of their exercises, followed by class discussion
   Case Studies and Prediction. Discussion on a number of stuck pipe cases [customer and/or other]. It will become evident that all stuck pipe events are preventable if we recognize the signs
   Freeing methods, Tools and Recovery. If we get stuck, it may not be too late to free the pipe. Discussion on what tools we have to free and if still unsuccessful, what we can do to recover from a stuck pipe incident
   Reporting, Feedback and Follow-Up. Each incident requires a thorough after-action review. Improvements can only be expected if we then cascade this information and follow up on all action items
The course is meant for staff directly or indirectly involved in the delivery of challenging wells such as office-based planning and operations well engineers and field-based operator/contractor supervisory staff

Main learnings: -

   Recognizing the importance of meticulously planning the well by performing a thorough risk assessment on all stages being drilled or being cased off
   Appreciating how critical it is to involve field staff [operator and drilling contractor] as well as service contractor [support] staff at an early stage of planning the well
   Identifying the possible causes and mechanisms that could stick the pipe and how to agree on successful mitigation plans
   Understanding hole instability and the operational challenges they pose in particular during the tripping phase. Identifying practices to stay out of trouble and/or how to effectively manage hole instability
   Understanding critical mud properties which – in conjunction with hole circulation and hole sweeping practices – enables us to clean the hole effectively
   Identifying freeing methods and why these methods need to be applied both timely and rigorously. Understanding how to optimally place and use the drilling and fishing jar and – if so required – the accelerator
   Appreciating that all stuck pipe incident learnings have to be captured as it may well be the trigger that prevents a stuck pipe incident on subsequent wells. Valuable learnings must be cascaded in an appropriate format
   Appreciating why crew training and optimal communication will greatly assist in achieving the ultimate well objectives

Delivery: -

The course can be delivered as a: -
   2-day event, classroom, for office-based planning and operations well engineers as well as senior drilling and service contractor staff.
   2-day event, classroom, for field-based operator and field-based drilling and service contractor staff.

It will be important to get to know the preliminary well design as well as the intended attendees, so that the trainer can home in on the unique details of the challenges that the client is facing. Furthermore, in order to prepare well specific presentation material, it is advisable to give provider PTS an advance notice of approximately 2 to 3 months. Other request, such as syndicate style workshop sessions can also be discussed at per clients’ requirements.