Westside: Capturing By-Passed Pay

Wednesday 17-Mar-10 11:30 AM to 1:00 PM CDT

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Total Seats: 67

Reserved: 67

The WestLake Club - Carriage Room

570 WestLake Park Blvd
Houston Texas 77079
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Speaker Paul Worthington

Position: Gaffney, Cline & Associates
Company: Principal Adviser

Event Description

Capturing By-Passed Pay

Pay is the thickness of a reservoir rock that contains significant quantities of potentially exploitable hydrocarbons. By-passed pay relates to movable hydrocarbons that cannot be drained by existing wells and will be left in place if nothing is done. By-passed pay can occur at wells or between wells. In the former case it might literally have been overlooked at the time that the well was drilled and completed. This might have happened because the pay was “hidden”, as for the infamous low resistivity pay, or perhaps because the hydrocarbon was gas, for which there was no ready market at the time. In between wells, integrated reservoir studies can show that reservoir zones or layers have been left untapped during field production. This might have happened because of a preferential watering out or because discrete sand channels were not intersected by a wellbore.

This presentation looks at diverse examples of by-passed pay and summarizes the approaches that are being used to capture them. By-passed pay constitutes a lower-risk prospect than hydrocarbon accumulations in unappraised areas. Beyond this, there are three drivers. First, new technology in the form of improved reservoir imaging allows insights that were not achievable previously. Second, an evolving understanding of how reservoirs work has allowed procedures to be developed for maximizing the exploitation of even problematic accumulations. Third, market forces amid global post-peak-production fears are giving the exploitation of by-passed pay an even greater impetus today. Some pointers are identified as an aid to maximizing commercially recoverable hydrocarbons in developed assets.

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Attachments


Event Contact	Event Coordinator
Phil Sullivan	Stephen Baumgartner
(281) 285-8892	(713) 296-3190
(281) 285-4212 FAX	(713) 296-4682 FAX

Westside: Capturing By-Passed Pay

Wednesday 17-Mar-10 11:30 AM to 1:00 PM CDT

Speaker Paul Worthington

Position: Gaffney, Cline & Associates
Company: Principal Adviser

Biography

Paul F. Worthington is a Principal Adviser with Gaffney, Cline & Associates in Singapore, where his main interests are integrated reservoir studies for equity redetermination, reserves estimation, and reservoir management. Previously he spent 13 years with BP, mostly as Head of Formation Evaluation at the BP Research Center in Sunbury-on-Thames, England. He has a PhD and a DEng, both from the University of Birmingham, UK and has published over 90 technical papers in the field of engineering geoscience. Worthington currently holds a visiting professorship in Petroleum Geoscience and Engineering at Imperial College, University of London. He has served as President of SPWLA, a Distinguished Lecturer of SPE and SPWLA and has twice chaired the SPE Formation Evaluation Committee. Worthington is a member of the SPE Distinguished Lecturer Committee and is Program Chair for HEES 2010. He is a former Editor of Petrophysics and is currently a Co-editor of Petroleum Geoscience.