MicroSeismic, a provider of surface micro seismic monitoring, has announced that it has achieved the longest-installed active, permanent, near-surface array in the world. This BuriedArray was installed to monitor completions in the Haynesville formation in Louisiana and includes 99 stations covering 15 sq mi.
Installed in 2010, the BuriedArray is still active and has monitored hydraulic fracturing operations for three different exploration and production (E&P) companies, totaling 10 wells and 129 treatment stages monitored to date. Currently, the system is owned and operated by Sabine Oil and Gas to monitor and evaluate refracturing activities for multiple wells.
“With cost-saving initiatives driving our current strategies, it is advantageous for Sabine that our recent Haynesville acquisition includes a BuriedArray, which made the property even more attractive. We are using micro seismic analysis provided from the BuriedArray to evaluate new refracturing methods and confirm the most profitable refracturing strategy going forward,” said Cheryl Levesque, senior vice president, asset development, Sabine Oil and Gas.
To date, MicroSeismic has installed over 50 BuriedArray systems, monitoring more than 15,000 stages for 230 wells on two continents.
MicroSeismic’s BuriedArray data acquisition system deploys a permanent array of multiple custom-designed geophone strings installed near surface and spread across a wide area to monitor a reservoir during hydraulic fracturing and refracturing operations or to monitor induced seismicity. Unlike single-deployment arrays, the human effort required to run the system is minimal.
Once installed, the system shows how fractures are propagating during the treatment of each well to improve productivity and treatment efficiency using patented PSET technology. Powered by battery, solar, and wind sources, BuriedArray is able to run 24/7 and can easily switch on or off. The system is fully customizable and can be built to monitor areas as large as 500 sq mi.
Image: BuriedArray/ BeverlyPR