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► More details on Marine services
MARINE DRILLING and MARINE CONE PENETRATION TESTING EQUIPMENT
| Gregg Drilling’s Marine division is capable of performing most drilling, sampling, and cone penetration services over-water as well as on land. We have equipment and experience to provide services in both deep and shallow water. The Quin Delta drill ship is a self propelled ocean-going vessel with a shallow draft of only 5 feet. This allows the Quin to work in a wide range of locations from deep offshore waters, to harbors, rivers, and shallow inland locations. It was specially engineered and designed with 80-foot spuds that can be used for stable anchoring in waters up to 70-feet deep. Gregg’s full time boat captain is experienced with digital GPS and can maneuver the Quin to a client’s exact testing location. | | | 
| Quin Delta equipped with Mobile B-80/22 drill rig |
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QUIN DELTA SPECIFICATIONS
|  | Length: | 110' | Beam: | 28' | Draft: | 5' | Anchoring: | 80 foot Spuds
or 3 point anchoring | Positioning: | DGPS | Engines: | Twin Detroit 671 |
| The Quinn Delta is equipped with the following equipment: | Mobile B-80/22 Mud Rotary Drill Rig 2 cm2 Miniature CPT System (minicone) 10 cm2 CPT System Vibracore Sampling System (max depth 20') Gravity Core Sampling System (max depth 5') OW Coring System (capable of obtaining 2.5" cores, 3" Shelby tubes and Split spoon samples)
| The Quin Delta is outfitted with a Mobile B-80/22 mud rotary drill rig for geotechnical and environmental offshore drilling. The B-80 is equipped with an automatic SPT hammer and can be used to perform SPT sampling and split spoon sampling. The rig can also be equipped with Gregg’s OW coring systems and used for sediment and rock coring.
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|  |  | Mobile B-80/22 Drill Rig | Minicone CPT System prepared for deployment | Vibracore allows for sampling
in shallow water | | |
Jack-up Boat
|  Some projects may not require the extensive services provided by the Quin Delta. In these instances, Gregg will organize a jack-up barge, sectional barge or boat to be mobilized to the site. Projects in areas such as the Salton Sea (Southern California) and the Outer Banks (South Carolina) have been accomplished with the use of smaller marine vehicles such as these. Gregg owns two different marine drill rigs, the Mobile B-80/22 and a Mobile B-80/14, which can be deployed on barges of differing sizes.
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| | | Jack-up boat used at the Salton Sea. |
Minicone CPT System
| |  Gregg’s specially designed miniature cone penetrometer system provides the same valuable stratigraphic detail and soil strength information as our large diameter cone penetrometers. It can be deployed from a variety of barges and work boats and is a cost effective tool for determining near surface soil strength information. Penetration reaction is provided by the weight of the self righting seabed deployment frame. The minicone is attached to a coiled rod which is straightened and pushed into the sea floor by a thruster unit attached to the seabed frame. This same unit coils the rod while it retracts the cone after a sounding. The coiled rod and thruster unit allow for a rapid and continuous deployment of the system while keeping the overall size of the unit to a minimum. The minicone is capable of operating in depths up to 10,000-feet with a maximum penetration depth of 35-feet below mud line and a maximum tip resistance of approximately 350 tsf. It is controlled and powered from the surface through an electromechanical umbilical cord or by ROV which provides the power and digital control, and also transmits soil data to the acquisition system on the host vessel. It is ideally suited to cable route and dredge surveys.
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