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Shale as a Reservoir: Leveraging Formation Characterisation, Well Placement and Unique Completions to Improve Multi-Stage Stimulation


2 – 4 October 2012

Prague, Czech Republic | Corinthia Hotel


Technical Agenda

Tuesday, 2 October, 0900–1230

Session I: Completion/Stimulation Technologies: Taking Us Beyond Stimulation by Geometry

Session Managers: Roberto Ceccarelli, Jon Olson and Andreas Reinicke

This session focuses on completion engineering and multi-interval hydraulic fracturing of shale gas reservoirs. Topics include: current technologies in cased/cemented multi-frac wellbores, open-hole multi-frac methods, customising the completion and fracture placement to enable optimisation, and emerging stimulation technologies. Various approaches for delivering multi-fracs will be discussed, including wireline conveyed systems, packer/sliding sleeve systems, and coiled tubing conveyed systems. The session will include discussion on the key factors involved in design and implementation of these systems, as well as practical field experience from a variety of applications. We will also explore how the completion and hardware methods may be suitable for delivering “optimised” or “customised” fracture treatments accounting for reservoir heterogeniety.


Session II: Grading Performance: How Are We and How Should We Be Measuring Success

Session Managers: Ernie Brown, Kris Nygaard and Kurt Reinicke

This session will focus on key performance indicators and methods that are used to evaluate “success” of multi-frac treatment placement. Economic optimisation includes both capital cost reduction while pursuing increased recovery. Some completion approaches may maximise initial production rates while other approaches may offer increased ultimate recovery but not necessarily the highest possible “IP”. Well and fracture treatment design approaches may be complicated by geologic controls (such as natural fractures and formation mineralogy), reservoir properties (such as permeability, porosity, pressure) and, formation heterogeneity. This session will discuss:

  • Balancing the cost and recovery equation
  • Potential production outcomes
  • Observations from production logging of multi-fracs, down-hole fibre optic measurements, tilt-meter and micro-seismic interpretation
  • Modelling of hydraulic fracturing

Wednesday, 3 October, 0900–1230

Session III: Sweet-Spot ID and FE: What Are Seet-Spots and How Are We Detecting Them

Session Managers: Philippe Charlez, Roland Chemali and Brian Gratto

Geology plays a significant role in the formation and the economic exploitation of shale reservoirs worldwide. Predrill geology-related tasks include basin evaluation, seismic interpretation and appropriate analogue characterisation. Considerable planning is required for drill-well activities such as mudlogging, geochemical sampling, coring and a selection of optimal well logging suites to provide adequate information for well-bore characterisation of these shale reservoirs. Integrated workflows for characterising shale reservoirs will result in accurate determination of total hydrocarbons in these fine-grain rock systems, incorporating a stratigraphic framework and geometry, porosity, organic content, fluid composition and storage mechanisms and reservoir pressure. This session will discuss “sweet-spot” definition and detection, with focus on tools and characterisation methods involving seismic, remote imaging, TOC, mineralogy, brittleness, Young’s Modulus, natural fractures, matrix permeability and more.


Session IV: Development Optimisation: Well Location to Frac Placement

Session Managers: Roland Chemali, Jeff Grable and Jose Mota

Significant capital expense is involved with large scale resource development. This session will explore how investment capital can be more efficiently utilised via commercially available technology solutions. Specific discussion topics will include key considerations and methods for hole location, geo-steering, well placement, drilling the curve, landing the horizontal and drilling the lateral, managed pressure drilling, air-drilling and motors/bits. Factors that influence recovery will be discussed (well drainage and interference) as well factors that may impact hydraulic fracture treatment size, fracture interval spacing and selection of fluid/proppant systems.

Thursday, 4 October , 0800–1130

Session V: Integrated Approaches

Session Managers: Rob Fulks, Valerie Jochen, Randy LaFollette and George Sutherland

This panel session will review state-of-the-art “integrated approaches” in the pursuit of shale gas for both exploration and development phases. It will also ask important questions as to how to effectively balance “data collection” relative to “cost reduction”. While the industry has made significant progress during the last few years in developing improved understanding of shale reservoirs, key uncertainties remain in our industry’s predictive capabilities. This session will further explore the balance of “learning by science and measurements” and “learning by the bit”. A mock field development scenario will be subject to an interactive “debate” in working through key questions and uncertainties associated with “new” fields with limited production.