Client name: Shanxi Coalfield Geophysical Survey Company
Survey location: Luliang, Shanxi Province, China
Survey terrain: Loess, mountains, farmland, and villages
Survey size: 7km2
Application acquired for: Coal mining
The STRYDE Nimble system was used for this project. Two Nest Cases were supplied, enabling 180 Nodes to be charged and harvested simultaneously. A total of 6,000 STRYDE Nodes™ were used on the project.
Field equipment for efficient stakeless Node deployment and retrieval was also supplied: the STRYDE Navigator Tablet and App for field positioning; Initialisation Devices for starting and stopping data acquisition; and ergonomic Backpacks for easy transportation of Nodes and peripherals by foot.
6,000 STRYDE Nodes™
24 crew members
Vibroseis and dynamite
40 m receiver line spacing, 10 m receiver point spacing; 60 m source line spacing, 10 m source point spacing Production operating times: 24 hour vibroseis operations. Dynamite source points were only acquired during daytime
24 hour vibroseis operations. Dynamite source points were only acquired during daytime
870 nodes were deployed each day by 8 teams, consisting of 3 people per team
Only 2 people were required to perform all charging and data harvesting operations for the 6,000 STRYDE Nodes™ used in the survey
4 pickup trucks
“We chose STRYDE due to the data quality that was able to be acquired from a lightweight, simple, and low-cost wireless system. Compared with other nodal systems, the STRYDE system is much lower priced and its impact on operational efficiency is higher, and this is even more magnified when compared to wired geophone systems! We look forward to using STRYDE again soon.”
Challenges experienced during survey planning
Benefits and how STRYDE helped overcome these challenges
The node’s compact weight and size, combined with stakeless operations using STRYDE’s state-of-the-art Navigator Tablet and App, enabled extremely efficient node deployment and retrieval operations and allowed the overall project timeline to be accelerated, even in challenging terrain.
The STRYDE system has transformed the price point of land seismic equipment relative to the cost of conventional seismic instruments. Furthermore, the ability to deploy the miniature nodes quickly meant planning, preparation, and logistical overheads were greatly reduced, unlocking further cost savings and efficiency gains.
Being able to carry hundreds of nodes by foot, and thousands in small pickup trucks meant logistical requirements for the project were significantly reduced, reducing exposure to HSE risk and enabling the team to deploy and retrieve Nodes quickly and safely in mountainous areas.
Dense point-sensor acquisition with STRYDE’s piezoelectric accelerometer sensor resulted in high quality, high fold data, with rich high-frequency content.
Providing access to STRYDE’s seismic sensors within 1 week of project approval ensured the team was able to align the project with the mine’s operational plan and exceeded expectations about the survey timeline.
The simplicity of the STRYDE system means that it is extremely easy to use and is even accessible to people with no previous seismic experience. The team required only a couple of hours of training to onboard them to the system prior to deployment operations commencing. This allowed the team to start up efficiently and effectively, with minimal operator deployment and retrieval errors.