压裂界没有之一 MicroSeismic创最长微地震监控系统

MicroSeismic Inc. 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 square miles.

Installed in 2010, the BuriedArray is still active and has monitored hydraulic fracturing operations for three different exploration and production (E&P) companies, totalling 10 wells and 129 treatment stages monitored to date. Currently, the system is owned and operated by Sabine Oil & 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 microseismic 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.

“We’re proud that this particular BuriedArray has been helpful to multiple E&P companies and continues, five years after installation, to help these partners understand reservoir treatment effectiveness. This is a perfect illustration of our vision for the BuriedArray, to act as a cost-efficient, life-of-field monitoring system that can conveniently be activated at any time with very little cost or effort,” said Randy Evans, Vice President of Operations, MicroSeismic.

To date, MicroSeismic has installed over 50 BuriedArray systems, monitoring more than 15 000 stages for 230 wells on 2 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.

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 customisable and can be built to monitor areas as large as 500 square miles.

Permanent & Real-Time Shallow Subsurface Monitoring
BURIEDARRAY®

MicroSeismic’s BuriedArray data acquisition deploys a permanent array of MicroSeismic-designed geophone strings installed in the near surface to monitor an area of more than 500 sq. miles (1,300 sq. km). BuriedArray Permanent & Real-Time Shallow Subsurface Monitoring uses PSET® technology to provide results that show how fractures are propagating during the well treatment. By determining source mechanisms, PSET processing provides a greater understanding of the effectiveness of the stimulation treatment.

BuriedArray is ideal for operators who need to monitor multiple wells or require monitoring through the life-of-field. The wide area coverage provides economies of scale. As more wells are monitored under the same array, costs decline dramatically relative to any other microseismic acquisition techniques. The ability to monitor large areas repeatedly with the same equipment leads to more strategic field planning and development, and the ability to monitor refracs.

Array Design
The BuriedArray installs include multiple level combinations of 1C and 3C phones at depths varying according to the established noise profile. The density of stations will also vary based on event detectability; from two to eight stations deployed per square mile. Shallow burial of phones typically reduces surface noise more than 20 dB allowing sparser station spacing, reducing cost. BuriedArray stations can be live 24/7 as they are powered by battery, solar, and wind sources. Data can be recorded locally or transmitted wirelessly back to the main processing unit.

Key Benefits:
Directly map local stress orientations
Observe field-wide well stimulation
Map individual and multiple well drainage areas with long-term production monitoring
Monitor multi-zones and multi-wells simultaneously
Optimize infill well spacing and lateral length for increased production efficiency
Permanent array provides refract monitoring capabilities
Ideal for 24/7 time lapse monitoring applications

ABOUT MS
MicroSeismic, Inc. is an oilfield services company providing completions evaluation services and real-time monitoring and mapping of hydraulic fracture operations in unconventional oil and gas plays.
Founded in 2003, MicroSeismic invented the use of surface microseismic monitoring to listen to the naturally occurring, low-energy seismic noise emitted from a reservoir during hydraulic fracturing stimulation. Utilizing surface, near-surface, and downhole arrays, MicroSeismic helps oil and gas companies understand how the reservoir responds to stimulation and its impact on customer economics.