Executive Committee

Executive Committee

IPF Executive Committee

Continuing Education Chair
Membership Chair
Sponsorship Chair
Web Chair
Safety Web Chair
JIPF Executive Editor
JIPF Executive Editor
Brenden Grove

IPF Executive Advisors


Mark Brinsden Email

Mark S Brinsden is a Senior Production Technologist, Principal Technical Expert and Team Lead - Perforating for Shell's global business, with a focus on delivering well performance and safety from effective perforating. He runs a functional team of Subject Matter Experts and focal points throughout the Shell Global organization to help deliver results at field level. Mark has a BSc from Edinburgh University and has 35 years of industry experience covering many of the operating areas across the world. He is Chair of API RP 19B perforating committee and President and co-founder of the International Perforating Forum and International Perforating Symposium Series, as well as www.perforators.org an industry group dedicated to the advancement of perforating technology. He is active with the SPE as Chairman of the SPE Energy Information Committee, an SPE Aberdeen Board Member, an SPE Journal Technical Editor and has presented numerous papers at conferences. He travels widely throughout Shell's global assets to provide advanced training in Perforating Optimization and detailed help with delivering optimal inflow performance from the more complex reservoirs. He is also working with several manufacturers and contractors to develop new perforating technologies and is inventor and co-inventor of several gun systems under development

David Ayre Email

James Barker Email

James Barker is a Halliburton Technology Fellow and the technical chief for Perforating Technology at Halliburton’s Jet Research Center division at Alvarado, Texas.  His work is focused on the development and testing of perforating systems, especially in the areas of specialty explosives and thermal decomposition kinetics. His further work at Jet Research Center encompasses explosive safety, process safety management, and regulatory compliance. James has over 36 years of industry experience and has held various engineering and engineering management positions during his career.  In addition to perforating systems, his broader technical background includes the development of downhole completion equipment and cased-hole wireline tools.  James holds a BS degree in Nuclear Engineering and an MS degree in Mechanical Engineering from Texas A&M University.  He has received over 30 patents related to explosive devices and downhole oil tools, has published and presented papers, and serves in leadership roles in several technical organizations within the explosives and oil & gas communities including Board of Governors and Steering Committee for the Institute of Makers of Explosives; Director and Secretary for the International Perforating Forum Company; co-chairman for the 2016 International Perforating Symposium; and co-chairman overseeing the revision of the API RP67 document, Recommended Practice for Oilfield Explosives Safety.

John ‘JW’ Segura Email

John “JW” Segura is Weatherford’s Global Product Line Manager for Perforating, Pipe Recovery, and Mechanical Services. Having focused on deep water and deep well operations, JW helped develop, test, and successfully deploy ultra-high pressure Pipe Recovery services in the Gulf of Mexico, in environments up to 30,000psi. He is a published author and presenter for the International Association of Drilling Contractors (IADC), the American Society of Mechanical Engineers (ASME), and the Artificial Lift R&D Council (ALRDC). JW has published work in SPE One Petro and several periodicals including SPE Drilling & Completion. With 35 years of experience in wireline and energetic operations, JW serves within several industry technical organizations, including: Director and Treasurer of the International Perforating Forum Company, Steering Committee overseeing the revision of the API RP67 document, Recommended Practice for Oilfield Explosives Safety, and the API RP19B document, Perforator Witnessing Program. JW remains an active participant in the operations arena and has several patent applications filed for new and improved tools and processes within the Perforating and Pipe Recovery disciplines.

Alan Salsman Email

In 1977 Alan Salsman started his oilfield career in the wireline logging business with Schlumberger Canada. Moving from Canada in 1981 as a field engineer he worked in various field, management, technical support, engineering, and sales positions covering the wireline and well testing business to his current posting as the Schlumberger Technical Director, Perforation and Reservoir Access based in Paris. His 38 year career has spanned the globe from Canada to Europe, the Middle East, the Far East, then to the USA followed by Africa, Canada and Abu Dhabi till finally getting to Paris in 2014. Alan studied business at Acadia University in Canada.

Steve Zuklic Email

BSc Mechanical Engineering, Colorado School of Mines Product Line Manager, TCP-DST Systems Steve has worked for Baker Hughes since entering the oilfield in 1993 specializing in completions including sand control, tubing conveyed perforating, drill stem test tools, packer systems and subsurface safety systems through a variety of field, technical support, sales, and operations management positions.  Currently serving as global product line manager for TCP-DST since 2010, he is active on the API-RP19B subcommittee and International Perforating Forum as well as co-authoring multiple industry papers and patents.

Alphie Wright Email

Alphie Wright has been in the oil industry for over 30 years with experience in domestic and international roles involving engineering, sales and operations. Alphie began his oilfield career as a cased-hole logging engineer with NL McCullough where he eventually held other various engineering roles. When Western Atlas purchased NL McCullough in 1989, Alphie moved into regional engineering position and eventually management positions in the US Operations. With the purchase of Western Atlas by Baker Hughes in 1998, Alphie was moved into the role of Senior Applications Engineer for the TCP / Perforating division and ended up as the Product Line Manager. Alphie started with Titan Specialties in 2008 as VP of Sales and Marketing where he continues to hold that position for the Titan Division of Hunting Energy Services. He currently serves on the Steering Committees for both the API RP-19B and RP-67 Committee along with International Perforating Forum. He is also an active member of the Society of Petroleum Engineers and holds a Bachelor of Science degree in Petroleum Engineering from Texas A & M University.

John P Davidson Email

John’s 35 years of industry experience began in the US, continued to the middle east and SE Asia with Dresser/Western Atlas as a Completion Engineer.  In 1992, he transitioned to a position as a Well Site Manager for Unocal Thailand and currently consults for the Chevron Completion Engineering group in Bangkok.  Chevron Thailand currently drill over 500 wells annually and perforate >40,000 ft per year. His responsibilities include his role as cased hole logging and perforating SME, electricline contract management and the maintaining the CH-OH Composite log he developed in 2005 as well as the Automated Cement Evaluation Scorecard he developed in 2010.  John is published with “Chevron’s Clear Leader” magazine, SPE and SPWLA and is active in the International Perforating Forum and API subcommittee.

Frank Preiss Email

Frank joined DYNAenergetics in 2004. He held various positions within DYNAenergetics before becoming General Manager of DYNAenergetics Germany in 2007 and Senior Vice President R&D, Sales and Marketing of the global DYNAenergetics Group in 2012. In 2015 he accepted the position of Senior Vice President Industrial Affairs and Business Development. He previously worked as open hole engineer with Schlumberger, cased hole engineer with Computalog and was Operations Manager Wireline for Precission Drilling in Germany. Frank is holder of an explosives license since 1997 and has the qualification to train personnel for the German explosives license. He is a member of SPE, the German Society for Petroleum and Coal Science Technology, the API perforating subcommittee and is a member of the Executive Committee of the International Perforating Forum as well a member of the Board of Governors of the IME institute of makers of explosives. He holds several patents and a Masters degree in miningengineering from the Technical University of Clausthal Zellerfeld in Germany.

John Carminati Email

John is a Senior Well Engineer (CWI) with over 35 years of experience and is currently assigned to Shell’s deepwater development line of business. He is a perforating Subject Matter Expert within Shell and has been active in the International Perforating Forum since its inception and was a co-chairman for the inaugural SE Asia perforating symposium. John has a BSME degree from New Mexico State University. Over the years, John has worked with several manufactures in development of unique perforating charges and systems required to successfully deliver projects within Shell’s portfolio.

Deirdre Skaggs Email

Marizza Piche Email

Accomplished in house corporate counsel with over 18 years of broad based experience as In house Counsel and Human Resources Director. Significant experience in maritime, upstream, including oilfield services engineering and exploration and production companies. Most recently Marizza works as General Counsel with Allrig, Inc., a multinational oil and gas service company headquartered in Houston, Texas, having offices in the Netherlands, UAE, Singapore and USA.

Eliana Mandujano Email

Eliana has joined the International Perforating Forum in 2014, being involved in the IPS Galveston event planning. She worked for GEODynamics as Executive Administrator and later on, International Sales representative, currently serving as Independent Consultant for IPFC. She has been working with the IPFC President and Directors on developing the International Perforating Forum, both in the incorporation process and in PR and Marketing. Eliana has extensive international experience having lived, studied and worked in Romania, France, Qatar, and now the US. She has earned two Masters’ degrees in European Projects Management and International Business Administration and she is fluent in 4 languages (English, Spanish, French, and Romanian).