Core Retriever™ Evo

Complete downhole surveys while retrieving core in the same operation. Redesigned as a lighter kit, Core Retriever™ Evo connects directly to GyroMaster™ or GyroMaster™ EVO.

Compatible with conventional and high-performance overshot systems, it reduces equipment load while keeping field operations simple.

Complete surveys while pulling cores

Improve your team´s efficiency by doing two tasks at once. With our Core Retriever™ overshot assembly, you can pull core and survey simultaneously.

In combination with our solid-state north seeking GyroMaster™ and its new version GyroMaster™ Evo downhole survey tool, Core Retriever™ increases drilling productivity and delivers great results.

Automated survey results

After pulling the core, receive an automatically generated pdf report detailing the survey results straight to your wireless handheld PDA device. Tamper-proof data ensures that you maintain the highest level of quality control in the field.

Lighter kit. Wider compatibility.

The redesigned Core Retriever™ no longer requires a separate overshot assembly or additional carrying case. Its compact kit connects directly to the gyro, making transport, setup, and field handling simpler.

Designed for compatibility with conventional overshots and high-performance core retrieval systems, it gives drilling teams more flexibility without changing the main workflow: survey while retrieving core, in one efficient operation.

Technical Specifications

Dimensions
Outer Diameter 42 mm (1,65")
Length 2310 mm (91'')
Weight 10 kg (22 lbs)
Operational Environment
Depth Pressure 5,100 psi (35 MPa)
Operational Temperature -30°C – +70°C (-22°F – +160°F)
Performance*
Azimuth Accuracy 0,16°
DIP Accuracy 0,05°
Driller Deployable Yes

* Accuracy quoted at 1σ

Handheld Device
Battery 20 hrs (8580 mAh)
IP Rating IP68, IP69K

All Your Questions​

Clearly Answered

We understand the importance of having precise information before making decisions. That’s why our technical and commercial teams are prepared to guide you every step of the way.

No matter how specific your question is, we’re here to help you find the best solution. 

Connect with us

Let us help you, contact us today.