News and Updates

Dear Colleagues,

The next general meeting of the Industry Steering Committee for Wellbore Survey Accuracy / SPE Wellbore Positioning Technical Section will take place on Wednesday, April 11th in Inverness, Scotland, UK. The sub-committee meetings will occur the day before: Tuesday, April 10th.

The meeting (including sub-committee meetings) will be held at:

Kingsmills Hotel
Culcabock Road, Inverness IV2 3LP
01463 237166

If you want to stay at the hotel you can contact them directly and get the delegate rate of 120 pounds per night. However, the hotel is very central and there are plenty of options for accommodation close by.

Of additional note, the UHI on-line course based on the ISCWSA e-book has a spring intake starting on 5th February and an on site practical school the week after ISCWSA in Inverness. Details at or contact Angus Jamieson.

Registration link will follow at a later date.

If you are a member of a sub-committee, we will be grateful if you can plan to attend. If you are interested in serving on a committee, contact the sub-committee chairperson. A contact list is available on the ISCWSA sub-committee tab.

If you or your organization can offer sponsorship for portions of the meetings (such as coffee breaks, lunches, meeting rooms etc.), please contact Jonathan Lightfoot, ISCWSA Chairperson. We are indebted to the many past sponsors who have contributed to sustain our technical community work which has been running for over 20 years and we look forward to continuing our good work for many years to come.
Best Regards,
The ISCWSA Committee

The ISCWSA Committee

Dear Colleagues,

The ISCWSA Wellbore Intersect ebook has been released and can be downloaded for FREE using this link.

The ISCWSA ebook has recently been updated, the ISCWSA ebook training videos can be accessed using this link.

Please also check here for the first release of the new "Well Intercept and Ranging" ebook.

The Society of Petroleum Engineers, Wellbore Positioning Technical Section are proud to announce the SPE Live Webinar Event which was held in June 2017.

We will post details here on the upcoming ISCWSA webinars.

Past Webinar Event Title: Well Collision Avoidance
Presented by: Steve Sawaryn, Drilling Engineering Consultant

The SPE Wellbore Positioning Technical Section (WBPTS) has been working towards a standard well collision avoidance rule for a number of years. Work started by establishing a common nomenclature and management practices. The subject involves all aspects of the Technical Section’s remit, which has expanded over the years to address the evolving drilling practices and technologies.
In the last 40 years, the frequency of unintended well collisions has decreased steadily as a result of improved directional surveying instruments, the introduction of computer based tools and databases and rigorous application of all the associated management practices involved in the planning and drilling of the wells. Despite this trend, today the greater use of pad drilling, decreased surface spacing and the introduction of more complex well trajectories has decreased the inter-well spacing at all points in the well. Unless the situation is managed, this closer proximity between wells can lead to a greater risk of well collision. An added complexity is that what is reportable is not clear, and not all collisions are reported. This situation makes analysis difficult, but useful inferences can be made. The necessary management practices, based on the WPTS work, were outlined in the paper SPE 184730 together with a summary of 19 anonymous health, safety and environment (HSE) and non-HSE well collisions which illustrate why continued vigilance in this subject matter is essential. There are strong economic as well as HSE reasons for doing so.
The webinar will review the management practices and lessons to be learned from the collision events. The discussions will also touch on the proposed collision avoidance rule which is scheduled to be presented in greater detail in the paper SPE 187073 at the forthcoming SPE 2017 Annual Technical Conference and Exhibition in San-Antonio, Texas.

Steve Sawaryn Biography:
Steve is an independent drilling engineering consultant specialising in drilling systems. During the previous 35 years he held a variety of national and international posts in BP’s Drilling Engineering Division in drilling operations, consultancy and projects. He is also a chartered engineer and fellow of the British Computer Soc. Sawaryn holds PhD and M.A. degrees from Cambridge University. He has authored more than 35 SPE papers and has served on a number of SPE committees. He received the 2010 SPE North-Sea Region Technical Award for Drilling Engineering and now chairs the SPE Wellbore Positioning Technical Section, Collision Avoidance sub-committee.