Publications

Oil and gas fields are contained within viscoelastic media that have unique and distinguishing energy states. These media are not only inhomogeneous in terms of compostion (material and fluids distribution), but are also inhomogeneous with respect to energy state. We have developed a technology whereby the energy state of such media can be measured, monitored, and altered so that net hydrocarbon production can be increased. The technology has been awarded patents by European (2005) and Eurasian (2000) regulatory bodies. In brief the technology uses an approach where the stress distribution within the medium that contains the hydrocarbon field is initially characterized, then monitored over time using geophysical, topographical, and subsurface pressure measurements. These measurements are used to generate an energy model for the medium, and a predictive model for the effects of externally induced vibrational disturbances. Vibrations are then induced within the hydrocarbon field to raise its energy state. This in turn alters the stress state within the field, and the pressure distribution, resulting in enhanced fluid flow. Vibrations are induced at the earths surface over an area typically 1.5 to 2.0 times larger than the underlying hydrocarbon field. The medium returns to its original state after a certain period of time following cessation of induced vibration. No damage is caused to the field during the operation. In order to optimize an enhanced level of hydrocarbon output, induced vibrations are repeated every 1.5-2 months. This technology has been applied since 1994 to many hydrocarbon fields, achieving significant increase in production and decrease of water cut. We have proved in practice that the technology can be applied to a wide range of geological structures and reservoir characteristics. An observed added benefit is that the induced vibrations tend to correct non-optimal disturbances in the medium caused by previous uncontrolled exploitation.