April Lunch and Learn - Improving Wireline Comparison Modelling / Risk Scoring


Apr 23

April Lunch and Learn - Improving Wireline Comparison Modelling / Risk Scoring



April 23rd 2019

From 11:45 for 12:00, ends by 13:45

Venue: Aker Solutions, Aberdeen International Business Park, Dyce

Improving Wireline Comparison Modelling / Risk Scoring 

In well intervention modelling there are inputs that can be described accurately, such as toolstring dimensions, completion design and wireline properties, but there are other inputs which can be initially unknown and unfamiliar, such as well friction.

To provide insight into the probability of success for any wireline run it is important that the unfamiliar model inputs be investigated and the variance in their corresponding results used as the basis for risk scoring and decision making.

In the Middle East, long reach wireline runs can extend up to 30,000 ft, with over half the well horizontal, some with 180+ degree azimuth changes.  These wells present significant challenges for wireline in both directions, with long periods of high powered, tractoring going in and high pick up weights off bottom.

In order to assist with risk analysis, modelling of each well was conducted using varied friction factors and production / injection rates.  The functionality of commercially available software to manipulate the frictional effect of each tool individually and independently of well friction, along with the ability to overlay multiple scenarios on one plot, resulted in an envelope of ‘doability’.

The tension data from multiple runs, showed interesting phenomena at work, which existing software models cannot replicate accurately; stick / slip, or static and dynamic frictional effects and reducing frictional effects from a surface weight perspective.

To address these inaccuracies, greater functionality is required in software models such as incorporation of “Dynamic Well Modelling” theory as described in SPE153180 and the ability to vary cable friction as well as tool friction in order to isolate the effect of each.  To validate these new models, downhole recording of tool movement would also be an important part of the puzzle.

This Lunch and Learn will be presented by Fraser Hamilton of Impact Selector. 

The Lunch and Learns provide a forum for sharing case histories, field experience and new technologies. Don’t miss this excellent networking opportunity.

We are delighted to announce that we have reduced the members' rate to £25 plus VAT for our Lunch and Learns' this year.

Members £25.00 plus VAT. Contact us for your member discount code if you do not already have this. 

Non Members £40.00 plus VAT

Or pay for 8 Lunch and Learns and get a discounted ICoTA membership for 2019 for £225.00 plus VAT.

If you would like to raise your profile at these events, we have opportunities to sponsor, display company stands or distribute corporate literature. Get in touch for further details.

Thanks to our ICoTA Champions, TAQA, TOTAL E&P UK, Intervention Rentals, Altus Intervention, Helix WellOps, Shell, Hunting, 3M & Weatherford for supporting ICoTA's mission to improve communication, share knowledge and promote the value of well intervention solutions within the oil and gas industry.