The main goal of the work is to investigate the behavior of a geothermal reservoir containing salty water when its physical parameters exceed the critical values, i.e. when the vaporization process cannot be described by the asymptotic self-similarity solution. We consider a low-permeability rock, where salty water vaporizes at a sharp front, because of fluid extraction at constant pressure. If...

Introduction: Results from modeling of an early CO2 martian atmosphere and late Noachian climate predict that at pressures greater than a fraction of a bar, atmosphere-surface thermal coupling occurs, resulting in adiabatic cooling of high areas across Mars [1]. This effect promotes the transport of water from warmer low-lying areas to the highlands where deposition and accumulation of water ic...

H. C. Helgeson noted in 1968 that the salinity of the brine in the geothermal reservoir within the Salton Sea geothermal system generally increases from the top to the bottom and from the center to the sides. He also noted that pressure measurements at perforations in cased wells seemed to indicate that the formation fluids at the depths of production have a specific density about equal to 1, a...

Two deep geothermal wells, one of which is the deepest onshore UK well, have been successfully drilled to intersect Porthtowan Fault zone in early Permian high heat flow Carnmenellis Granite, part major post-Variscan Cornubian batholith underlies SW England. The drilling target was prognosed at 4 5 km depth from existing surface data and limited geophysics. It a late Variscan complex strike-sli...

Re-injection of produced geothermal water for pressure support is a common practice in geothermal field management. The location selection of the reinjection well and the rate of injection is a challenging subject for geothermal reservoir engineers. The goal of optimization for this type of problem is usually to find one or more combinations of geothermal re-injection well locations that will m...

an investigation on the thermal performance of the soil as geothermal heat energy storage medium has been conducted. the thermal characteristics of the soil storage and the heat transfer from a heat exchanger in the soil, surrounding and bottom surface will be discussed. this investigation forms a contribution to a project to realize such storage to be charged from a solar heating system. this ...

A dataset comprised of well-constrained focal mechanisms for 6147 earthquakes recorded in the northwest Geysers geothermal field during the period of 2005–2012 was utilized to conduct a detailed stress study within and below the geothermal reservoir. The high-quality focal mechanisms were organized into grid blocks of varying size using a 3D octree gridding algorithm in which discretization was...

Executive Summary The objective of Reservoir Monitoring Consortium (RMC) is to develop new methods for dynamic reservoir monitoring. We will carry out a number of focused applied research projects in reservoir monitoring that are directly pertinent to the current and future needs of our industry sponsors. We will develop specific workflows for different types of reservoirs. This will include th...

rhis paper reviews geological, geochemical and ;eophysical data on the deeper parts of the high.emperature, water-dominated geothermal system of C’erro Prieto in Baja California, Mexico. It also ;peculates about the lithology, temperature, pressure and fluid chemistry that might be encountered in a jeep (about 6 km) exploration well being considered For the eastern part of this field. Based on ...