Advances in Pressure Transient Well Testing Techniques: Design, Acquisition, & Interpretation
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30 November- 2 December
Tripoli, Libya
Corinthia Hotel
Pressure transient well testing is the interpretation of pressure data with wellbore rate and other information from producing/injection wells. It offers a potential to assess well condition, formation transmissibility, reservoir pressure, and inhomogeneities, such as faults and fractures, heterogeneities, and vertical changes in permeability.
In the early days, objectives of well testing were simply to answer questions such as:
- What was wrong with poorly performing wells?
- Was it possible to forecast long-term behavior from short-duration well tests?
- Was well stimulation required?
During the last three decades, high quality pressure data with the addition of the pressure-time derivative on log-log type curves has yielded much information that was not evident in pressure data alone. It has permitted identification of inhomogeneities such as fissured, channel, or layered formations.
Recent acceleration of technical advances both in hardware and software is now revolutionizing well test design, data acquisition, and interpretation. Improvements in equipment are leading to more robust and accurate measurements of pressure and temperature, as well as the opportunity for more accurate control, execution, and coordination of activities downhole, and longer term data gathering, such as extended well testing.
Gauge metrologies have been improved continuously to deliver pressure data with 0.005 psi resolution. Improvements in computational techniques and software are now beginning to extract meaningful reservoir/well information from previously hard-to-interpret or uninterpretable data to the extent that the conventional idea of a controlled set of flow rates for a test almost disappears, and long term pressure data from permanent downhole gauges becomes even more reliable with high accuracy, resolution, and low drift. Reservoir models with better geological and geoscience input now allow us to design and conduct testing optimally both in cost and safety, while not compromising the information content and duration of the test.
These advances permit reservoir and petroleum engineers and geoscientists to apply well testing in more complicated reservoir well/systems with challenging environments: deep water, high pressure, and high temperature.
Techncal advances, however, come with costs, complexity, and the need to assess both the quality and value of the information obtained. Consideration also must be taken of the environmental impact of testing: what can we do to minimize our environmental footprint while testing? All this leads to the need for a structured approach for commissioning, designing, execution, and interpretating well tests.
In this workshop, we hope that there will be many opportunities for petroleum engineers and geoscientists to be involve in all aspects of current well testing technologies while sharing their knowledge and experience. This structured approach of the workshop will up date our knowledge of the latest techniques in this exciting and rapidly advancing field.
Who Should Attend
All E&P professionals involved in designing, executing, commissioning, and interpreting well tests will benefit from this workshop. This includes reservoir engineers, reservoir development engineers, geologists, petroleum engineers, production technologists, drilling engineers, HSE specialists, and asset owners.