Search results

• Fluid flow fundamentals
  | 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
  20 KB (3,155 words) - 21:20, 19 January 2022
• Displacement pressure: theory vs. reality
  * [[Saturations required for hydrocarbon flow]] * [[Hydrodynamic flow and pressure transients]]
  4 KB (587 words) - 13:36, 1 April 2022
• Dip-leaking fault
  ...zone. Pressure differences along and across faults can also cause down-dip flow in the area of lowest pressure.<ref name=ch10r43>Knutson, C. A., and R. Erg
  8 KB (1,130 words) - 17:14, 28 March 2022
• Relating traps to paleogeography
  ...and below normal wave base where sedimentation is dominated by [[gravity]]-flow processes. ...ated to their transport through slope channels and deposition as a gravity-flow deposit within the axis of a salt-withdrawal valley (see [[:file:sedimentar
  11 KB (1,482 words) - 15:47, 21 March 2022
• Factors that oppose hydrocarbon migration
  ...en requires significant pressure gradients to overcome the restrictions to flow common in shales. For water, the problem is generally not one of ability to ...differentials interacts with permeability and capillarity to determine the flow rates along multiple [[Hydrocarbon migration|migration]] pathways. Perfect
  8 KB (1,133 words) - 15:16, 14 February 2022
• Reservoir modeling for simulation purposes
  ...[[Fluid flow fundamentals]]). Reservoir heterogeneities influencing fluid flow range from large scale faults and discontinuities down to thin shale interc ...t give a sufficient description of those parameters that control the fluid flow relevant to the planned simulation study.<ref name=pt10r14>Harris, D. G., 1
  17 KB (2,234 words) - 21:21, 19 January 2022
• Factors that cause migration
  * Topographically driven flow ...er-pressuring the pore system within the source-rock unit and resulting in flow from the source-rock unit into the surrounding formations. This factor is o
  6 KB (918 words) - 15:16, 14 February 2022
• Wireline formation testers
  ...t 15 sec, followed by a similar volume flowing into chamber #2 at a higher flow rate. Upon completion of the pretests, a sample can be taken or the tool ca ...In this figure, time is shown as increasing to the right and pressure and flow rate are increasing upward. Initially, and when the tool is being set, the
  10 KB (1,446 words) - 17:42, 18 January 2022
• Economics: key parameters
  ...xample multiwell extension project, given in the article [[Building a cash flow model]], are summarized here in Tables 1 and 2, respectively. ...015,600 USD]]. For the extension project (see Table 3 of [[Building a cash flow model]]), the NPV at 4% = [[cost::2,729,760 USD]].
  19 KB (2,745 words) - 21:18, 19 January 2022
• Karst topography
  ...e valleys or grooves contained in karst land. This valley is formed by the flow of surface water that eroded the rocks in its path. ...ngeln 1942 an underground passageway formed by leaching and erosion by the flow of groundwater or underground Form the rest of dissolution
  13 KB (2,016 words) - 19:56, 5 April 2019
• Carbonate diagenesis
  | chapter = Carbonate reservoir models: facies, diagenesis, and flow characterization ...ductivity of depositional facies. In some cases, [[reservoir quality]] and flow characteristics are totally controlled by diagenesis, as in [[Karst|karsted
  23 KB (3,026 words) - 20:48, 19 January 2022
• Mudlogging: equipment, services, and personnel
  ...osition from the gas trap and blender. This system includes a pressure and flow alarm and purge system to detect vacuum system blockage or leaks. * Safety considerations, such as checking for flow and sudden gas increases
  8 KB (1,031 words) - 15:27, 24 January 2022
• Production problems
  ...essure gradients around the wellbore will not cone in the unwanted fluids. Flow performance calculations or reservoir models can be used to help predict th ...erval or more perforations must be added to expose additional reservoir to flow. [[:file:production-problems_fig2.png|Figure 2]] illustrates the effects of
  16 KB (2,540 words) - 18:41, 20 January 2022
• Sandstone permeability prediction from texture
  ...much. The rougher the surface of the pore, the more difficult for fluid to flow through the pore and the lower the permeability. ...ne reservoirs and its effect on sandstone shaliness, pore space, and fluid flow properties: Proceedings of the SPE Annual Meeting, October 9–12, paper SP
  9 KB (1,118 words) - 17:03, 6 April 2022
• Predicting sandstone reservoir porosity
  ...ng-reservoir-system-quality-and-performance_fig9-55.png|{{figure number|2}}Flow chart to predict the effect of original sediment composition on subsequent ...ng-reservoir-system-quality-and-performance_fig9-56.png|{{figure number|3}}Flow chart to estimate the effects of near-surface diagenesis (depth to point wh
  10 KB (1,384 words) - 15:00, 6 April 2022
• Sea level cycles and carbonate diagenesis
  ...wn-section water movement becomes dominated by conduit flow. The change in flow character is a result of plugging intergranular pores and leaching that wid
  7 KB (960 words) - 21:00, 6 April 2022
• FWhitehurst sandbox
  * gravity flow deposit - See sediment gravity flow * plastic flow http://dictionary.reference.com/browse/plastic+flow
  22 KB (3,024 words) - 21:42, 19 December 2014
• Interpreting hydrocarbon shows
  ...s || Yes || >65 for Ss, >45 for Ls or dolomite || No moveable gas || Short flow period caused by pressure drop near wellbore || Hydrostatic gradient | Flow rate || High in high-permeability rocks || Low
  8 KB (1,130 words) - 17:09, 5 April 2022
• Seismic data interpretation - recurring themes
  ...-D, which introduces [[repeatability]], [[Fundamentals of fluid flow|fluid flow]], and [[difference volume]].
  5 KB (739 words) - 18:51, 27 January 2022
• Hydrocarbon expulsion, migration, and accumulation
  ...ct during the processes of expulsion, [[migration]], [[accumulation]], and flow to a wellbore. Differential pressure (ΔP) in the fluid continuum of the [[ ...on, E. B., S. M. Goolsby, and M. H. Franklin, 1994, Subtle seals and fluid-flow barriers in carbonate rocks, ''in'' J. C. Dolson, M. L. Hendricks, and W. A
  6 KB (828 words) - 16:32, 4 April 2022
• Pressure compartment seals
  ...t as capillary seals and define trap boundaries. Pressure seals impede the flow of hydrocarbons and water. They form where pore throats are effectively clo * Capillary seals define trap boundaries. Capillary seals impede the flow of hydrocarbons. They form where [[capillary pressure]] across the pore thr
  5 KB (763 words) - 17:58, 17 February 2022
• Drill stem testing
  * productivity estimates, including flow rate (''Q'') ...ame=pt03r34>Matthews, C. S., and D. G. Russell, 1967, Pressure buildup and flow tests in Wells: SPE Monograph Vol. 1, Society of Petroleum Engineers, New Y
  26 KB (4,009 words) - 15:09, 24 January 2022
• Geological heterogeneities
  ...servoir system?|reservoir]] and the relationship of that complexity to the flow of fluids through it.<ref name=pt06r4>Alpay, O. A., 1972, [https://www.onep ...ic lithofacies]] and [[Carbonate reservoir models: facies, diagenesis, and flow characterization#Carbonate sediments and environments|Carbonate lithofacies
  17 KB (2,232 words) - 21:22, 19 January 2022
• Drive mechanisms and recovery
  ...]] or [[saturated]].<ref name = pt10r25>Odeh, A. S., 1986, Reservoir fluid flow and natural drive mechanisms, in IHRDC Video Library for Exploration and Pr ...rvoir. The producing GOR rises quickly as the bubbles link up and begin to flow and can increase to as much as ten times the initial GOR. If reservoir pres
  16 KB (2,374 words) - 20:46, 19 January 2022
• Cash flow model
  | chapter = Building a cash flow model ...ed drilling venture—a new field, pool, or just a single well—is the ''cash flow model'' of investments, expenses, taxes, and wellhead revenues involved wit
  19 KB (2,272 words) - 19:27, 19 January 2022
• East Breaks hydrocarbon accumulation model
  The [[gravity]]-flow sandstone reservoirs within the field were transported from the north, sout ...he ''Trim A'' and ''Glob alt'' intervals agrees with a channel-fed gravity-flow depositional system.
  8 KB (1,015 words) - 16:59, 23 March 2022
• East Breaks trap formation
  ...e basin through which [http://cdn.intechopen.com/pdfs-wm/25729.pdf gravity flow sands] flowed southward. [[Depocenter#Sediment_supply_rate_and_facies_patte ..., structural traps of [http://cdn.intechopen.com/pdfs-wm/25729.pdf gravity-flow sandstones] formed
  7 KB (1,022 words) - 21:54, 22 March 2022
• Reservoir simulation study
  ...]]. A grid, which determines the resolution at which the complex reservoir flow equations are solved, is then selected. The model's size is defined by the ...vide insight into the mechanics of production performance (such as viscous flow, [[gravity]], or heterogeneity). For example, a fluid injection project can
  19 KB (2,711 words) - 17:48, 21 January 2022
• Permeability
  ...ck, its relative permeability is 1.0. Two or more fluids generally inhigit flow through rock compared with that of a single phase of each component.<ref na ...input and output ends measured fluid pressures, which were then related to flow rates to obtain the following fundamental Darcy's law:
  19 KB (2,716 words) - 19:02, 20 January 2022
• Reservoir quality
  ...ional area of the rock, and the pressure differential across the length of flow. ...e present. Slump structures may reduce permeability by creating a tortuous flow path, or may increase permeability (and porosity) by causing a looser grain
  18 KB (2,514 words) - 17:47, 21 January 2022
• Monte Carlo and stochastic simulation methods
  ...1b]]. In addition, the transfer function itself, as in the case involving flow simulators, is usually a rough approximation of the actual process taking p ...o particular problem. However, if the transfer function involves a complex flow simulator, repetitive runs of such a transfer function can be tedious if no
  11 KB (1,623 words) - 19:24, 19 January 2022
• Petrophysical analysis of lithofacies
  ...og data and, if available, porosity-[[permeability]] data. Categorize each flow unit by port type as mega-, macro-, meso-, or microporous.
  6 KB (763 words) - 18:53, 4 February 2022
• Stratigraphically complex fields
  * Three-dimensional conductivity and “tracking” fluid flow must be understood. * [[Flow units for reservoir characterization]]
  8 KB (983 words) - 20:49, 19 January 2022
• Types of completions
  ...le was drilled. When the formation was penetrated and oil and gas began to flow, drilling ceased and the well was produced as an open hole completion. As [ ...Hole_instability|sloughing]] zones can cave into the wellbore and restrict flow to the surface.
  13 KB (1,944 words) - 19:56, 18 January 2022
• Weyburn field location and trap problem
  ...on, E. B., S. M. Goolsby, and M. H. Franklin, 1994, Subtle seals and fluid-flow barriers in carbonate rocks, in J. C. Dolson, M. L. Hendricks, and W. A. We ...r Verlag, 161 p.</ref><ref name=ch09r24>Hannon, N., 1987, Subsurface water flow patterns in the Canadian sector of the Williston Basin: RMAG 1987 Symposium
  6 KB (848 words) - 17:34, 3 January 2024
• Well completion
  * Provide a conduit to measure the changes in flow rate and pressure needed to run a well test ...le was drilled. When the formation was penetrated and oil and gas began to flow, drilling ceased and the well was produced as an open hole completion. As r
  19 KB (2,910 words) - 21:06, 18 January 2022
• Condensate banking effect
  ...elasco, R., & Deo, M. (2020). Understanding and Modeling of Gas-Condensate Flow in Porous Media. Advances in Geo-Energy Research, 173-186.</ref>]] ...decreased relative permeability to gas.<ref name=Shi_2009>Shi, C. (2009). Flow Behavior of Gas-Condensate Wells. Stanford University.</ref>
  21 KB (3,040 words) - 15:22, 12 December 2022
• Abnormal hydrostatic pressure
  * Abnormal [[heat flow]]
  3 KB (426 words) - 14:51, 16 February 2022
• Eolian reservoirs
  [[File:M91FG171.JPG|thumb|300px|{{figure number|2}}The influence on fluid flow by heterogeneity in eolian sediments.]] ...flow in each area. These features may provide less of an impedance to the flow of highly mobile gas in the Northwestern Europe gas fields than they do for
  19 KB (2,690 words) - 18:42, 1 August 2016
• Stratigraphic predictions from computer simulation
  ...ent bypassing the area (slope stability factor), slumping, and [[gravity]]-flow transport must be considered. ...ed on predicting organic richness, [[maturation]], [[porosity]], and fluid flow, as well as converting the lithofacies distributions into synthetic seismic
  7 KB (895 words) - 16:18, 24 March 2022
• Braided fluvial reservoirs
  ==Barriers to vertical flow== ...show good vertical pressure communication with only localized evidence for flow baffling.<ref name=Martin_1993 />
  13 KB (1,859 words) - 21:29, 12 March 2019
• Fracture threshold in the real world
  ...evaluation by integrated two-dimensional modeling of heat transfer, fluid flow, hydrocarbon generation, and migration]: AAPG Bulletin, vol. 74, no. 3, p.
  6 KB (930 words) - 15:49, 30 March 2022
• Systems tracts and trap types
  ...be mistakenly identified as highstand systems tract deposits. [[Gravity]]-flow deposits of slope and basin-floor fan systems are most often placed into th ...tratigraphic, but postdepositional [[deformation]] that places the gravity-flow sand deposit in a structurally high position enhances the potential for foc
  9 KB (1,239 words) - 16:58, 24 February 2022
• Yowlumne field
  ==Flow units and reservoir compartments== ...erlag, p. 467-487.</ref>). Most likely, these pathways represent different flow units that, for the most part, are in pressure communication over geologic
  13 KB (1,896 words) - 19:02, 11 March 2019
• Phases of a seismic project
  ...-the-shelf design is shot by a low-bid contractor, processed with standard flow and parameters, then delivered for interpretation. The company that breaks
  3 KB (455 words) - 22:00, 25 January 2022
• Maturation
  ...bles such as [[paleolatitude]], pressure, [[Wikipedia:Fluid dynamics|fluid flow]], rock matrix chemistry, and [[Petroleum reservoir fluid properties|pore f
  3 KB (421 words) - 18:26, 9 February 2022
• Hydroelectric power
  However, it was not until the flow of water was used in the generation of electricity that water started to ma * Dams alter and divert river flow affecting access to water, transforming landscapes, and resulting in signif
  10 KB (1,466 words) - 16:06, 11 January 2016
• Rock-water reaction
  ...y system of laboratory tests to evaluate only the influence of salinity on flow impairment must be conducted at rates below the critical velocity. Converse ...particles of [[quartz]] or other minerals || High transient pressure High flow rates || Perforate slightly under-balanced (1000 psi) Increase well rate sl
  17 KB (2,356 words) - 19:24, 19 January 2022
• Facies map
  ...dge, the sandstones penetrated were most likely transported by [[gravity]] flow processes and deposited in environments on the slope and within intraslope ...0 ft]] (> 60 m) sandstone [[Subsurface_maps#Isopach|isopach]]. The gravity flow sandstones were deposited within slope valleys basinward of the physiograph
  15 KB (2,070 words) - 20:34, 7 July 2016
• Biofacies and changing sea level
  ...e downslope transport is sustained by the inclined surface and [[gravity]]-flow processes (see [[:file:sedimentary-basin-analysis_fig4-29.png|Figure 2]]). The downslope transport of shallow-water faunas by sediment gravity-flow processes may result in the mixing of [[Fossil assemblage|biofacies assembl
  7 KB (984 words) - 15:13, 4 January 2024

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