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Well Deepening
BestPractices A well that is going to be deepened should
A well that is going to be deepened should have a large enough diameter required for the new well parameters needed; widening a well would not be practical. Reasons for why the existing well was abandoned should be known before trying to deepen it because there may be lost equipment or collapses down hole that would make deepening it extremely difficult.
uld make deepening it extremely difficult.  +
ExplorationGroup Drilling Techniques +
ExplorationSubGroup Development Drilling +
FieldProcedures After a drilling target is determined if t
After a drilling target is determined if there is an existing well at or near the target location well deepening might be considered. Not all wells can be deepened depending on their diameter and how they were drilled and cased. If a well can be deepened it should be cleaned and then drilling procedures would be similar to drilling any other well except the beginning of the well is already completed. See [[Production Wells]] [[File: Calpine well drilling.jpg |thumb|center|400px|Geothermal production well at Imperial Valley, California. The drilling of production wells, such as this one in southern California, results in one-third to one-half of the cost of a geothermal project. The DOE Geothermal Energy Program pursues the development of technologies that will considerably reduce the cost of drilling these wells.]]
reduce the cost of drilling these wells.]]  +
HydroInfo Identify aquifers, reservoir boundaries, flow rates, fluid pressure, and chemistry  +
IntroText Well deepening is re-drilling into an already existing well in order to find a deeper more productive reservoir. Sometimes a previously unproductive well can be deepened in order to reach a location with higher flow and temperature. +
LithologyInfo Drill cuttings are analyzed to determine lithology and mineralogy  +
Name Well Deepening  +
OpenEI/PageDescription About Well Deepening, a geothermal exploration technique, including areas of use.  +
OpenEI/PageKeyword geothermal  + , exploration  + , techniques  + , Well Deepening  + , areas  +
Pitfalls Not practical to widen the diameter of the well so not all wells are suitable for deepening.  +
StratInfo Fractures, faults, and geologic formations that the well passes through are identified and mapped.  +
ThermalInfo Direct temperature measurements from within the reservoir  +
TypeOf Development Drilling +
Has query
"Has query" is a predefined property that represents meta information (in form of a subobject) about individual queries and is provided by Semantic MediaWiki.
Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening +
Has processing error
"Has processing error" is a predefined property provided by Semantic MediaWiki and represents errors that appeared in connection with improper value annotations or input processing.
Well Deepening + , Well Deepening + , Well Deepening + , Well Deepening +
Categories Exploration Techniques , Geothermal , Drilling Techniques , Development Drilling , Well Deepening
Modification date
"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.
15:52:42, 9 October 2013  +
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Stepout-Deepening Wells At Lightning Dock Area (Warpinski, Et Al., 2004) + , Stepout-Deepening Wells At Medicine Lake Area (Warpinski, Et Al., 2002) + , Stepout-Deepening Wells At Medicine Lake Area (Warpinski, Et Al., 2004) + , Stepout-Deepening Wells At Rye Patch Area (Warpinski, Et Al., 2002) + , Stepout-Deepening Wells At Rye Patch Area (Warpinski, Et Al., 2004) + , Well Deepening At Lightning Dock Geothermal Area (Witcher, 2006) + ExplorationTechnique
 
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