Q-Land is a point-receiver acquisition and processing system capable of acquiring up to 30,000 channels in real time.
High-capacity ground network
The Q-Land system was built to record data from individual geophone accelerometers (GACs). Each sensor transmits a digital trace to the Q-Land central system through a cable-based ground network that uses a hybrid of copper and fiber optic transmission media to support the high data volumes.
The Q-Land ground network is designed to operate in temperate and desert climates.
Flexible power supply
The ground network is powered by a combination of solar panels and conventional battery technology that minimizes battery management logistics and environmental footprint. In areas of high daylight, the excess solar power is used to re-charge the conventional batteries for backup power and night-time operations.
Source driven acquisition
The Q-Land source manager interfaces with third-party source control electronics in the recording truck to enable source-driven acquisition using multiple vibrator fleets, or explosives.
Real-time quality control and in-field data processing
Integration of acquisition and processing through the Q-Land Q-Xpress system enables near-real-time seismic data analysis and processing.
The Q-Land Q-Xpress system efficiently handles the data volumes involved in processing 30,000 channels of uncorrelated vibroseis data, and dramatically reduces Q-Land single-sensor data turnaround time. The Q-Xpress hardware resides in both the recording truck and a dedicated field system. The latter is a fully mobile seismic data processing center with processing power and disk capacity to rival many processing centers. The field deliverables (group-formed data and field cubes) are sent to the nominated WesternGeco seismic data processing center for archive or further enhanced processing
The Q-Land Q-Xpress system enables a field cube to be produce within a few days of acquisition.
A compact central system for low channel count requirements
The Q-Land MAS (Mini-Acquisition System) is a lightweight, highly portable version of the Q-Land central recording system. It interfaces to Q-Land ground equipment to acquire data from up to 3,000 channels at a 2-ms sample interval, and 6,000 channels at a 4-ms sample interval. It is ideally suited to the following applications:
- Noise tests and Q-Land proof-of-concept projects
- 2D surveys in difficult imaging areas.
Point-receiver Geophysics
The fundamental geophysics behind Q-Land and UniQ