[[File:Segd28.jpg|right|thumb|300px|FIG. D-28. <b>Drill rig</b>. A drilling rig includes component systems for hoisting the drill pipe and other equipm
The equipment for rotary drilling a borehole (Figure [[Special:MyLanguage/Dictionary:Fig_D-28|D-28]]). Usuall
4 KB (627 words) - 14:11, 1 March 2017
...use the pressure of the drilling mud is greater than that of the formation fluids. See Figure [[Special:MyLanguage/Dictionary:Fig_I-6|I-6]].
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...e cuttings, prevent caving, seal off porous zones, and hold back formation fluids. Oil-based muds (inverted muds) are sometimes used; they generally are nonc
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...log and a drilling-time log (showing rate of penetration). Used to detect fluids that have entered the mud from the formations. Hydrocarbons may be evidence
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...id risking a blowout; if it is smaller than the normal pressure, formation fluids are apt to flow into the borehole, if it is too large, the formation is apt
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...The SP is positive with respect to the shale baseline in sands filled with fluids fresher than the borehole fluid. See also [[Special:MyLanguage/Dictionary:S
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...les. Flow of dolomitization [[Dictionary:Dolomitization]] and mineralizing fluids occurred during burial greater than 500 m, both vertically along reactivate
...ill Lake tight oil play, has also undergone a limited amount of horizontal drilling and multi-stage hydraulic fracturing in the Otter and Evi Fields, north of
18 KB (2,698 words) - 15:41, 13 December 2020
...n fell in the 1950s and 60s due to cheap crude prices. In the 1970s infill drilling took place to reach oil in plays that were not exploited by water-flooding.
...the stratigraphy controls the permeability, porosity, and accumulation of fluids in the basin. The stratigraphic features of the basin are similar to most o
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and fluids in the formation far from boreholes.
for drilling horizontal wells, developed at KMS Technologies,
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there was a side-by-side comparison. Preburn drilling and
the gaseous fluids was not circular around the injection well
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increase drilling success from wildcats in frontier basins to
proprietary processing, allows Exxon to predict fluids more
8 KB (1,139 words) - 11:34, 23 February 2015
...lts. This suggests that the fault may represent the [[migration]] path for fluids. Also note the presence of a red spot at the center of the channel between
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*[[Drilling]] & [[completions]]
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...gement, Frac Focus, http://fracfocus.org/hydraulic-fracturing-how-it-works/drilling-risks-safeguards</ref>
...as been used for more than 60 years, its wider application with horizontal drilling over the last decade has led to public debate over its benefits and risks.
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#energy, including [[hydraulic fracturing]] and [[drilling]] for exploration and production of [[water]], [[oil and gas | oil]], or [[
...ting interests, for example, groundwater and waste isolation, offshore oil drilling and risk of spills, natural gas production and [[induced seismicity]].
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...at it means to the users of the earth model in other disciplines including drilling and production.
...perties such as velocity, density, lithology, pressure, porosity, and pore fluids are obtained by advanced processing of seismic data calibrated by well info
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...s risks which can be avoided by studying pore pressure geometries prior to drilling<ref name = "Zhang">Zhang, Jincai. 2011. “Pore Pressure Prediction from We
...easurements if well logs are being [[Logging While Drilling|recorded while drilling]].
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...ble or in areas with structural impediments, such as mountains, horizontal drilling may be used to reach a resource from another location.
...ty.svg|thumb|352x352px|One of the reasons causing the onset of directional drilling is to reach hydrocarbons lying beneath highly populated areas, such as citi
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...ir and calculate the potential reserves of the reservoir in question. Once drilling has started pressure and production data is collected giving a greater insi
...he fraction of a rock volume that is void space that is available to store fluids.
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...ocated near the end of the drillstring. The measurements recorded provide drilling engineers with critical well information so they may make time sensitive de
...the drillstring. It is essential to measure the infiltration of drilling fluids into the formation because a large-scale invasion might cause a hydrocarbon
9 KB (1,376 words) - 14:09, 4 January 2018