A Source Model for Induced Earthquakes at the Geysers Geothermal Reservoir

Reservoir Response to Curtailments at the Geysers

Curtailment tests were conducted at the Calistoga and Bear Canyon wellfields from March to June 2001. The curtailments are found to result in lower decline rates as well as in an increased steam flow rate following the curtailed period. This increase is referred to as a “puff” and its duration is proportional to the extent of curtailments. The data from these tests have been used to develop a r...

Adsorption Characteristics of Rocks from Vapgr-dominated Geothermal Reservoir at the Geysers, Ca

Determining the 3-D F’racture Structure in the Geysers Geothermal Reservoir

In t roduc t ion The bulk of the steam a t the Geysers geothermal field is produced from fractures in a. relatively impermeable graywacke massif which has lieen heated by an underlying felsite intrusion. The largest of these fractures are steeply dipping right lateral strike-slip faults which are subparallel to the N W striking Clollayomi and Mercuryville faults which form t,lie NE and SW bound...

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Heating in a Geothermal Reservoir

A computer program in Visual Basic 6.0 is written to calculate steam tables for pure water up to 800oC and 1400 bar. The steam tables are created as a DLL (Dynamic Link Library) object with properties: temperature, pressure, specific volume, enthalpy and entropy for liquid and vapor phases, and liquidvapor state. The steam tables can be incorporated in any computer program on the Windows platfo...