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Petromall PDF 4 Nov 17.Indd INSIGHTS NOVEMBER / DECEMBER 2017 Can we squeeze more value from reservoirs in production - from better use of data? Truthful, professional consulting; no repeating what you already know, and no spin. Petromall is a unique oil and gas advisory service which prides itself on technical excellence in selected fields and supplementing business management and leadership in the face of uncertainty. • Exploration Time to treat reservoir simulators with more scepticism? • Subsurface Using changes in gravity and subsidence on the• Projectseabed Capital Working with repeat seismic recorded on the seabed Using fibre optics in wells for measuring seismic• Field Operations Rock relative permeability from a digital rock •sample Security of Supply Improving reservoir simulation based on seismic• Decommissioning Working with well interference data A new cloud based production system for production engineers Petromall actively participates in the facilitation and conduct of seminars worldwide, and has been a proud sponsor of this event with Finding Petroleum. Our presence is across the globe in the UK, Malta, North America, with partners in the Middle East, Time to treat Using changes Working with Using fibre optics Rock relative North and Sub- Saharan Africa. reservoir in gravity and repeat seismic in wells for permeability from simulators with subsidence on recorded on the measuring a digital rock We help you to put science and engineering more scepticism? the seabed seabed seismic sample back into every decision made. Visit us at www.petromall.org [email protected] +44 020 3286 2556 Can we squeeze more value from reservoirs in production - from better use of data? The understanding that oil and gas companies have of reservoirs in Petromall is a unique oil and gas advisory production is a basis for multibillion dollar decisions and could hardly service which prides itself on technical excel- be more important in the overall success of the business. Is there lence in selected fields and supplementing business management and leadership; in the room for improvement in how they develop this understanding? face of uncertainty. The oil and gas industry’s understanding Between this bottom up and top down of reservoirs in production is the basis for processes is something of a black box. We offer truthful, professional opinion and multibillion dollar decisions which affect How do oil and gas companies take this advice; no playback of what you already everyone in the industry. bottom up and top down information to know, and no spin. build and improve their understanding The valuation of the company, the re- of the reservoir? Yes, we know they use Petromall was founded by 4 senior industry maining life of a well or field, sizing of and academic practitioners who consider reservoir simulators, but these are still the challenges faced by today’s oil and gas new production facilities, decisions about something of a black box, only under- environment are going to require herculean where to place infill wells, and whether stood by the people who use them. acts of leadership and technical skill in the to do workovers or enhanced oil recovery high cost provinces of the world, in order schemes, are all based on the company’s Some people we talked to think that to maintain an industry that is sustainable understanding of its reservoirs in produc- reservoir simulators, and their predic- and even recognisable compared to recent history. tion. A better understanding of reservoirs tions, should be treated with a little could also help maximise hydrocarbon more scepticism. The alternative ways Similarly nations developing an oil and gas production and minimise water. to understand reservoirs, based on ob- industry face related challenges as they served data, do not give a complete pic- seek to maximise the benefits of this new The industry has made great advances in ture either, but should perhaps be given wealth-creating opportunity - in a improving recovery over recent decades, more weight, with the raw data more responsible manner. from having a better understanding of widely shared. the reservoirs and how to extract more GLOBAL REACH from them. Understanding of oil and gas reservoirs can only become more critical in future Petromall actively participates in the facilita- But it may be possible to improve recov- years. When operating margins are tight, tion and conduct of seminars worldwide, in ery even more, if more different types making the right decision becomes more conjunction with its associate partner Find- of data could be used in better ways to ing Petroleum. important. With mature fields, predic- understand reservoirs, and more people tions need to be made about how much Our presence reaches parts of the globe, could contribute to the understanding. life is left. Often we have drilling, field such as: the UK, Malta, the USA, through This might mean having reservoir data development, operations, asset sales, partners in the Middle East, North Africa and systems which are easier for people from tie-backs to new wells, enhanced oil re- Sub-Saharan Africa. different disciplines to work with and ac- covery and decommissioning all taking cess, than the current complex reservoir place in the same field at the same time. simulators. This report explores ways it Perhaps in future we will also have CO2 could work. injection, for permanent storage and en- hanced oil recovery. This edition of Petromall Insights There is plenty of published material was written by: about new subsurface survey techniques, Karl Jeffery, editor, And there are plenty of new technologies Digital Energy Journal / Finding Petroleum how geoscientists develop their static being developed which can help under- (one point in time) geological models, stand reservoirs in production - including how reservoir engineers get a better 4D seismic techniques on the seabed and Layout by: understanding of reservoir properties in in wells, measuring changes in gravity Laura Jones, Very Vermilion Ltd specific points of the reservoir, and res- and subsidence on the seabed, under- ervoir simulation software available on standing multiphase flow from analys- the market. We can call this bottom up ing drill cuttings, studying interference Published by: information to understand a reservoir. between wells, better ways to integrate Petromall Limited and simulate data, enabling production CentralPoint There is also plenty of published material engineers to access reservoir data, and 45 Beech Street about successful wells and dry wells, preparing better geological models for London EC2Y 8AD production rates, and companies which reservoir simulators. The industry needs United Kingdom over-estimated their resources or pro- to make sure that all the information duction and let down their shareholders. generated from these technologies is Email [email protected] We could call this top down information not wasted. +44 (0)20 3286 2556 to understand a reservoir. www.petromall.org PETROMALL | INSIGHTS 3 Integrating and analysing multi-physics - the key to improving production? We have many technologies which can acquire data on the dynamics of petroleum reservoirs - if we can integrate this multi-physics and analyse it as one, our production predictions might take a great leap forward By David Bamford Hindsight is a wonderful thing and looking back abilities quoted. Sometimes we may be sceptical data on the actual dynamics of petroleum res- one can see areas of our everyday and working but the forecasts are much more reliable now. ervoirs. lives that technology has transformed. Closer to our working lives, consider the impact But.... the trick we have not yet mastered is how One of my over-used examples is the weather the advent in the mid 1990’s of ‘regional’ or ‘ex- to integrate this multi-physics and then analyse forecasting that we see now hourly it seems on ploration’ 3D has had our exploration success it as one. TV. rates, our exploration prediction accuracy. Who would think of exploring without it nowadays? If we can do this then our production predictions Many years ago I visited the UK’s Met Office in will take a similar Great Leap Forward to the the hope of learning something about prediction For a while I have asked myself when and weather forecasts most of us see every day! success and instead discovered that their fore- how we will see the same impact on reservoir casting apparently consisted of 1st degree level management? David Bamford is a former global exploration lead physics, some IBM 360’s strapped together, and with BP, and former non executive director of data from a few meteorological stations scat- Partly this is because reservoir engineering or, Tullow Oil and Premier Oil tered up and down the UK and out in the At- more precisely, reservoir simulation has remained lantic. pretty opaque to me, an art I have described as similar to the building of Chartres Cathedral or David Bamford The resulting analyses didn’t lead to very good perhaps the Grand Mosque at Córdoba - built predictions and I left assured that the best fore- and re-designed over decades, even centuries casts were based on either “tomorrow will be and as in the case of the latter, filling now a com- pretty much like today” or “tomorrow will be pletely different purpose to that which it was pretty much like the same day last year”! designed for. Consider what we see nowadays - satellite and But we now have, as reviewed in this Petromall airborne imagery: radar, thermal etc, even prob- Insights, several technologies which can acquire Working with technology better understand reservoirs in production. seismic; and Exa Corporation, which can model We did not focus too much on their technol- multiphase flow through a reservoir, from a The approach of writing this report is to try to ogy itself, but focussed more on how com- piece of drill cutting or core analysed in a CT find out how the oil and gas industry actually panies work with their technology.
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