C-NAV 3050M dual frequency RTK DGPS rovers/reference stations are employed for conducting field surveying operations. A total of seven units are provided to each crew. These units are authorized to utilize the Starfire corrections, which are produced by a network of monitor stations located worldwide. These monitor stations observe the signals transmitted by the GPS satellites and subsequently send correction data to the rover units via the Inmarsat telecoms satellites, enhancing the accuracy of the raw GPS signals.
Recently, one crew underwent an upgrade and is now equipped with advanced technology. They have a new SERCEL 508XL telemetric recorder featuring 20,000 field channels, a Sercel V464 DPG, and 40,000 Sercel SG10 geophones strings with 12 phones per string connected in a series configuration with a natural frequency of 10 Hz.
Additionally, the crew possesses 10 new SERCEL Nomad 65 Neo vibrators with a peak force of 62,000 lbs. These vibrators are outfitted with cutting-edge features such as the latest V464 vibrator electronics, Ripex communications, Trimble GPS system, Guidance, and the Smart LF software, which effectively minimizes low-frequency distortion.
To ensure independent verification of the vibrators, the crew has the latest Verif-i Sandwich Box mk3 and accompanying software. For troubleshooting the line equipment, they rely on the Sercel FT508, while the Sercel SGT-11 Geophone testers assist in geophone testing.
The other crew is currently equipped with the SERCEL 428XL telemetric recorder, featuring 20,000 channels recording with 20,000 field channels. They also have the Sercel V464 DPG and a set of 20,000 Sensor geophones connected in a series parallel configuration ( 6 in series parallel up with another 6 in series ) forming a 12 geophone string with a natural frequency of 10 Hz. Additionally, they utilize the real-time seismic data eSQC-Pro QA/QC system. For their vibrators, the crew has 22 SERCEL Nomad65 units, capable of exerting a peak force of 62,000 lbs. These vibrators are equipped with V464 vibrator electronics and Sercel TDMA communications, including built-in GPS capabilities. To ensure independent verification of the vibrators, the crew has the Verif-i Sandwich box and the accompanying software. They also make use of the SMT-400 Geophone Testers for geophone testing purposes.
Four Massenza M.I.9S top drive hydraulic drill rigs are employed for uphole drilling operations. These drill rigs are capable of drilling up to 1000 feet and utilize a combination of air and water. To enhance their drilling capabilities in challenging sub-surface layers, each drill rig is equipped with a supplementary Atlas Copco XR6 396CD truck-mounted compressor with a pressure of 17 Bar and a flow rate of 830 CFM. Additionally, hammer-jacks are utilized to address the difficulties posed by hard sub-surface layers. For each of the drilling units, a water truck with a capacity of 16,000 liters is provided. For recording uphole data, OYO McSeis SX 24 digital recorders are utilized, ensuring accurate and reliable data collection.
Water Well Drilling
The water well drilling crew utilizes an Ingersoll Rand RD20 III rig for their operations. This rig is outfitted with an Ingersoll-Rand HR2.5 Air End compressor, providing a capacity of 1250 cubic feet per minute (cfm) and a pressure of 350 pounds per square inch (psi). With a pullback capacity of 120,000 lbs, the rig is capable of handling demanding drilling tasks. Additionally, it is equipped with a rod carousel for efficient rod handling. To ensure a smooth operation, the rig is accompanied by all necessary support vehicles and equipment, enabling the crew to effectively carry out their water well drilling activities.
Data Processing Quality Control
AGESCO possess the latest version of SLB's Vista 2D/3D comprehensive processing software suite, along with the Omni 3D QC and Design software package. These software packages are accompanied by all necessary accessories, such as a spacious NAS storage system and CYPRESS A7 MDR Dual 3592 Cartridge drives. Furthermore, we have the 3D statics computation software developed by Seismic Image Software (SIS) of Canada. Initially designed exclusively for AGESCO, this software provides efficient statics computation capabilities.
Vertical Seismic Profile (VSP)
The VSP crew is equipped with a specialized recording box featuring the 508 light software and DPG 464(Source Manager). Additionally, it is outfitted with a Trimble GPS system, Ravion communications, and VHF radios. The instrument has the capability to accommodate up to 5 vibrators, if necessary. Assigned specifically to the VSP crew is a dedicated Sercel Nomad 65 vibrator with a peak force of 62,000 lbs. The vibrator electronics utilize VE464 DSD technology and are integrated with Trimble GPS and Ravion communications. If additional vibrators are needed, they can be made available upon request.