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...an indication of well productivity. Some production tests are performed in open hole (such as drill stem tests) and can be used in making completion decisi ...nction of hole condition, and the tool assembly must be retrieved from the open hole after the test is completed (see [[Drill stem testing]]).

;AOF:absolute open flow ;CAOFP:calculated absolute open flow potential

...cleat system coupled through the desorption process. The mechanism for gas flow in the coal involves three steps: # Darcy flow through the fracture (cleat) network to the wellbore.

| chapter = Fundamentals of fluid flow ...focus essentially on two aspects of fluid flow: pressure profile along the flow path and the rate versus pressure relationship at key points of interest (n

...ederal Energy Regulatory Commission (FERC) as “tight gas reservoirs.” This absolute value for classification as a tight gas reservoir was critically important ...re control (see [[Quick-look lithology from logs]]). Commonly, the [[Basic open hole tools#Gamma ray|gamma ray]] log provides the most distinctive log sign

[[Core description|Core]] and [[Basic open hole tools|wireline log analysis]] provide the means for evaluation of [[re ...ned from [[Basic open hole tools#Compensated neutron|neutron]] and [[Basic open hole tools#Density|density]] logs is ''total porosity'', which includes bou

...ally, or geometrically]], depending on [[flow geometry]]. Alternatively, [[flow capacity]] (''kH'') values derived from [[pressure transient testing]] can ...tions|steady state]] or [[Pseudosteady state conditions|pseudosteady state flow conditions]]. Changes will show on periodic maps of PI during reservoir lif

...must integrate subsurface data into a cohesive whole. Data include [[Basic open hole tools|well logs]], [[Seismic data - creating an integrated structure m | Vertical and horizontal flow of mobile [[evaporite]]s with arching and/or piercement of sedimentary cove

...ess given current knowledge and technologies for inducing these systems to flow petroleum. ...sorptive capacity. The presence of organic-lean facies or occurrence of an open-fracture network reduce the importance of the sorption effect.

...e chemical changes in the earth. More specifically, it is the study of the absolute and relative abundances of chemical elements in minerals, soils, ores, rock ...e from easily dissolved minerals at the fault and incorporated it into the flow. Fluoride was also injected into the Colorado Springs by fluoride-enriched