Seismic Survey
Terrace. According to the company, the industry has shown strong interest in this new multi-client data and initial results just released show a significant improvement in the imaging of deeper targets. Meanwhile, in Lebanon, the first shot has been
acquired on Spectrum’s multi-client land seismic survey. Tis initial line of acquisition is located in the Batroun region of the country, a symbolic gesture from caretaker energy minister Gebran Bassil who was born in the city of Batroun. Spectrum holds a contract with the ministry of energy and water to acquire up to 500km of multi-client 2D land data. Te first phase will carry on until the winter rain season. Phase two will commence early in 2014. Te survey covers an area which has never been seismically surveyed. Te seven wells drilled in the region do show some hydrocarbon indicators in the Cretaceous or Jurassic sections and Spectrum says many analogues can be made with Syria’s Palmyride Trough to the North.
Te company has also announced mobilisation for the acquisition of an airborne gravity/magnetic/ seep multi-client survey in the Barents Sea South East. Te survey will cover the entire newly opened area with approximately 29,280km to be acquired. Te survey aircraft will also carry, on an experimental basis, the new GRAVEX high- sensitivity gravity sensing system that not only measures gravity but also gravity gradients. If successful, it will be the first time ever data from this instrument will be presented to the industry. Also the Seepfinder sensor, applied to detect oil-seeps
from the sea floor into the water, will be introduced for the first time on the Norwegian continental shelf. In another technological development, Wireless
Seismic has made the first sale of its 3-channel RT System 2 seismic data acquisition system to a major oilfield service company. Te system will be used on passive seismic monitoring projects, initially in the North American region. Te three-channel wireless remote unit
(3D-WRU) operates without cables and with ultra- low power consumption, in the same manner as Wireless Seismic’s 1-channel WRU. An extension to the company’s proprietary 2.4 GHz radio technology has been developed that supports the transmission of seismic data from multiple channels housed within a single WRU and with geophones deployed at multiple depths. With the addition of the 3C-WRU, RT System 2 can be deployed with a mixture of 1C and/or 3C surface arrays and 3C near-surface buried arrays, at scale, all managed interactively from a single central control system. Key factors in the selection of RT System 2
by the oilfield service company are its ease of deployment, efficient logistics, reduced HSE factors, and flexible geometries. Because no cables are involved, deploying the WRUs is faster, crew and transportation costs are reduced, productivity is increased, and the risk of injuries is lowered. Also, RT System 2 enables significantly more flexibility than cabled systems in deploying the complex recording arrays that are becoming popular in the passive monitoring market.
Fasken Oil & Ranch selects SIGMA3 S
IGMA³ Integrated Reservoir Solutions has been selected by
Fasken Oil & Ranch to provide real- time microseismic fracture mapping, processing and interpretation for key assets in the Permian Basin. “We have utilised several different companies to acquire microseismic surveys in both the Permian Basin and the Eagle Ford, but the company of choice for us is SIGMA³ due to the fact that they are able to acquire and process data from large-aperture, 40-level arrays,” said Glenn Winters, chief geophysicist, Fasken Oil & Ranch. “Tis is more than twice the number of geophones as their competition, and in addition we
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www.engineerlive.com for fracture mapping
believe their processing algorithms are the best in the industry.” “In unconventional reservoirs, it’s all about designing and acquiring microseismic data that provides the highest level of confidence in real time and providing our clients with unprecedented insight to make critical business decisions,” said Jorge Machnizh, SIGMA³ ceo. “We appreciate the opportunity to help the Fasken team enhance their ability to meet their production objectives and look forward to working with them on upcoming projects.”
SIGMA³ offers technology, expertise
and services ranging from reservoir understanding, field development
planning to production optimisation. Tis integration of geoscience and engineering forms the foundation of SIGMA³ GeoEngineering solutions, including: earth modelling and imaging; seismic-driven reservoir characterisation and continuous fracture modelling (CFM); hydrofrac engineering design and microseismic fracture and field monitoring. Te company believes that smart use of fit-for-purpose technologies in a real-time dynamic modelling workflow gives E&P companies the power to implement the best solution and enhance production efforts, reduce drilling and completion costs, and drive profitability. ●
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