EXPLORATION • DRILLING • FIELD SERVICES
By precisely modelling the wellbore, frack fluids and proppant, the company’s engineers microanalyse the bottomhole net pressure response and help users predict what is most likely to happen during a frack stage
Another priority is to drill safely
and ensure accurate 3D estimates for frack closure stress and frack height using expert 3D pore pressure and frack pressure prediction methods. Next comes the ability to predict and evaluate the geomechanical response of the reservoir to hydraulic stimulation using dynamic geomechanics to assess completion methods and reduce the number of sub-optimal frack stages. Accounting for the propagation and interaction of multiple hydraulic fractures with natural fractures by predicting differential stress, microseismicity and frack stage performance, ensures Sigma3
’s customers
will optimise SRV and accelerate revenue. Te company also offers tools to
validate shale capacity findings in real time using high-confidence microseismic- led completions monitoring and use the results to optimise the next well. Finally, the company enables its clients to deliver actionable microseismic data by imaging 50% or greater data with adaptive signal processing and applying 3D anisotropic velocity models for improved location accuracy.
AVOID SCREEN OUTS Operators cite fracturing/stimulation and horizontal drilling as having the greatest impact on their spending plans. Between 2013 and 2014, the number of frack stages performed in the USA went up almost 20% to 550,000. Te roughly US$38 billion invested in frack services was tempered by failure rates (non-productive clusters/stages) as high as 40%. Tis is a very expensive problem, and especially painful in today’s low-commodity environment and in any region where the complexity of hydraulic fracturing is compounded by infrastructure and supply-chain challenges. Despite technology improvements, screen outs are just one of the factors
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contributing to number of under- performing frack stages. Te industry average for screen outs is about 5%, amounting to a loss of approximately US$2.7 billion in lost frack services. Te good news is that Sigma³ averages a 99.3% success rate in horizontal screen out avoidance, and saved clients US$22.7 million in 2014. Operators worldwide have an
opportunity to accelerate success in the shale market by fast-tracking the latest, most advanced technology; tested and
Optimising production involves a lot of variables. Sigma³ gives operators confidence about where to drill, as well as where and how to frack
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