Publications

Production Analysis for CBM (and other Unconventional Gas) Presented at the Canadian Society for Unconventional Gas, June 7, 2006.

Novel evaluation methods of unconventional gas production for OGIP, and proxy forecast models.

An introduction into the development of the Advanced Flow Analytics (AFA) hydrate module, focusing on basic theory and proposed prototypes for real-time analysis and remediation.  The prototype was developed in the Wolfram Language (WL) and will be converted to Python for release in the cloud. 

Recent advances in production data analysis (PDA) techniques have greatly assisted engineers in extracting meaningful reservoir and stimulation information from well production and flowing pressure data. Application of these techniques to coalbed methane (CBM) reservoirs requires that the unique coal storage and transport properties be accounted for. Read more >

A basic introduction into the new and emerging technologies for pressure and rate transient analysis, for CSG/CBM projects. Presented at the Pertamina CBM Field Visit & Workshop, 18-22 June 2013, QLD, AU

An Introduction to Wolfram and The Beginnings of AFA.  Internal presentation which shows the use of the Wolfram Language (WL) to create the underlying prototypes for the Advanced Flow Analytics (AFA) software.  Details from the calculation of pseudo-pressure to hydrate analysis are presented. 

Primer of CSG Testing: Some considerations and examples

The (semilog) derivative of pressure data from oil and gas wells is a widely accepted and highly useful tool for reservoir characterization. For buildup pressure data, this derivative is calculated with respect to equivalent time. It is generally assumed that since this derivative is obtained using equivalent time, it should be plotted on a coordinate axis that uses equivalent time. Read More >

Comparison of Pressure Transient Behaviour of Composite and Two-Layered Reservoirs

This paper presents a simple, but reliable, method for predicting the performance of multiple gas wells in complex reservoir shapes. Using an approximation of the traditional "image well" method, pressure and production profiles can be generated for arbitrary shaped reservoirs, with internal boundaries and similar heterogeneity, as well as multiple well completions. Read More >

An efficient model for gas-rate forecasting in complex reservoirs

This paper illustrates a practical systematic approach to determine the reservoir flow characteristics and reserves for both conventional and unconventional gas wells. Currently, there is an industry assortment of production analysis methods ranging from exponential decline and typecurve matching to rate-pressure normalization techniques and detailed production history matching. Read More >

Because of the quasi-gradient update embedded in CMA-ES algorithm, it can outperform most of the population-based algorithms, from a convergence speed standpoint. However, due to the computationally expensive fitness function associated with history matching, the reduction of function (simulation) calls can be favourable. Read More >

Proxy Models for Unconventional Gas Forecasting & Reserves Analysis-annotated.

An Alternative Method for Horizontal & Multilateral Pressure Transient Analysis.

In order to sustain the current production capacity of conventional oil in Western Canada, enhanced oil recovery (EOR) technologies must be increasingly applied. Among these, CO2 flooding is a highly attractive alternative. A large amount of CO2 is being produced by coal-fired power plants in this region. The CO2 is currently discharged into the atmosphere and could be a major contributor to the greenhouse effect, which may lead to global warming.

Read More >

Evaluation of Australia’s emerging unconventional gas sector (particularly shale gas, basin centered and tight gas) relies heavily on the use of North American analogues because of the lack of production history in Australian plays. While the use of analogues can be useful, no two shale or tight gas plays are identical so the use of analogues can also lead to significant pitfalls that need to be understood to be avoided. Read More >

​

Rock typing or subdivision of a reservoir either vertically or laterally is an important task in reservoir

characterisation and production prediction. Different depositional environments and diagenetic effects create rocks with different grain size distribution and grain sorting. Read More >

An introduction to the Monte-Carlo Capability being developed at Fossilytics.  This module will be applicable to conventional and unconventional reservoirs, with applicably to a variety of well completions.

Integrated Cloud based flowing material balance.