Geología de Exploración y Síntesis (GESSAL) is a Consulting company, with great expertise in geological & geophysical subsurface resource exploration, as well as in other engineering activities in the field of Oil & Gas industry.

Gessal has hired a well competent team of professional specialists in subsurface geology with more than 25 years of experience in geological consulting. During this time Gessal has carried out challenging projects related to Hydrocarbon exploration and production(E&P), gas storage, radioactive waste storage, Geothermal energy, Deep Hydrogeology, and other subsurface resources. In addition it has developed other research geosciences projects.

Gessal provides technical services of high quality and efficiency thanks to its highly qualified technical personnel who have a wide experience in planning, supervision, and realization of different operations of Engineering, Drilling, Workover and Well Testing in On-shore and Off-shore, reservoir engineering and management of technical information on E&P data,

In addition, Gessal has been involved in technical and training activities related to Exploration and production E&P, CO₂ and Gas storage, deep Hydrogeology and other subsurface natural resources.

Gessal has the ability to hire external consultants with an academic background and specialist with great experience who optimize and make the projects successful: seismic acquisition and processing, reservoir engeering, production engeneering, etc. Gessal has during its trajectory combined scientific research projects and their industry implementation.

Our activity has been developed in national and international domains, with projects in Europe, North and south America, Artic, Asia and Africa.

In 2006 Geociencias Aplicadas al Subsuelo S.L company was established as a subsidiary company focusing on developing CO₂ Storage research and other susbsurface projects different from hydrocarbon exploration.