The New Method of Using Geothermal Energy in Oil and Gas Industry

the renewable capacity of deep systems is assessed and discussed in order to elaborate a rotating utilization strategy. Drilling underground proves that the earth temperature rises with depth at a rate called “geothermal gradient”. But the heat content of the earth is so huge, that if it could be utilized, it could cover the entire energy needs for a lot of years and it is practically inexhaustible for human terms. In general heat and suitable temperature are not enough for geothermal exploitation. The worldwide experience in geothermal energy uses demonstrates a lot of cases in which a progressive reduction of production levels after the construction of the power station has been observed so that reinjection has been considered a common practice in geothermal energy uses, [۳۰]. The geothermal potential assessment can be considered a relatively recent field of research. It is well known that; the occurrence of a geothermal system requires a heat source and a working fluid to transfer heat. The estimation of the heat flow is a good basic element to understand the interest of a geothermal area, but is often not sufficient to clearly understand the capacity of a reservoir. The success of a geothermal project is mainly connected with the dimensions of the reservoir and with a well-defined estimation of the energy storage so that a quite long life of the geothermal plant could be obtained. Although in the literature a lot of different methods and reliable principles have been treated and tested; it seems quite difficult to find a complete multidisciplinary view of the problem, in which the connections between the parameters of plant design, geological and geophysical characterization and reservoir engineering can be clearly evidenced. the authors discuss the perspective of integration of the methodological“First order” methods based on the analysis of simple experimental data coming from well drilling operation, like thermal gradient and local heat flow, for the definition of methods for the definition of sustainable levels of power production.

کلیدواژه ها:

Renewable energy ، Geothermal power plant ، Geothermal well ، Abonden oil and gas well ، Effect of fluid in Geothermal