Well Test Operation in Croatia
A few months ago, we had the opportunity to support Crosco – Integrated Drilling & Well Services Co., Ltd with a comprehensive well test operation in Croatia — and we’re proud to say it was a success, with a highly satisfied customer.
We conducted a drawdown test across a wide flow range — from as low as 5 liters/s up to over 30 liters/s — with the pump set at ~800 meters depth, delivering more than 400 meters of head.
Our scope covered the full package, including:
✅ Complete ESP pumping system including surface and downhole equipment
✅ VFD container with remote transformer
✅ All surface cabling and handling tools
✅ Full installation, service, and testing crew to support 24/7 operations
In addition to the 675-series string, designed and prepared based on customer-provided data and expectations, we also prepared a second, smaller 540-series spare string — capable of handling lower rates — to ensure flexibility in case actual well conditions differed from initial assumptions.
At the end, we successfully delivered water at the customer’s maximum desired rate of 35 liters/s at ~80°C, achieving full performance targets.
Oil Dynamics GmbH, operating under the Geo Dynamics trademark, has established a strong presence in the European geothermal market by driving innovation in advanced geothermal technologies. With fully equipped workshop facilities, DIFA operations, and repair centers strategically located in both Germany and Romania, we are ideally positioned to deliver comprehensive services and support across Europe.
We’re proud to collaborate with partners across Europe to advance sustainable geothermal development by driving cutting-edge innovation in artificial lift technologies. Special thanks to Bundesverband Geothermie for their continued leadership.
Geo Dynamics Solutions for the GeoThermal Industry