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- ...nd basins attract the minds of geologists. The profound role of subduction zone emerges as methods in geophysics reveal the structure and composition of ma ...ove inside the Earth. According to the types of involved crust, subduction zone has two separate types: island-arc and active [[continental margin]] (ACM).27 KB (4,033 words) - 20:52, 27 March 2019
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- ...ach reservoir zone can be related to the clay content and thickness of the zone. The corresponding equation is (see [[:File:Shale-gouge-ratio-fig3.png|Figu <math>\text{SGR} = \frac{\Sigma [(\text{zone thickness}) \times (\text{zone clay fraction})]}{\text{fault throw}} \times 100%</math>3 KB (473 words) - 20:04, 11 March 2015
- ...ocarbon seepage may only be detectable near major leak points or below the zone of maximum disturbance. ...mical-exploration-for-petroleum_fig18-2.png|300px|thumb|{{figure number|1}}Zone of maximum disturbance in shallow marine sediments. From Abrams;<ref name=c4 KB (482 words) - 21:00, 31 January 2022
- ...and-rich portions of the fault zone leak; shale-rich portions of the fault zone seal. Given the complex structure and composition of fault zones and the ma ...ging wall]] have been incorporated as discontinuous fragments in the fault zone. The coal, however, is intensely fractured, reflecting [[Brittleness|brittl4 KB (509 words) - 16:52, 29 March 2022
- Each zone has characteristic cement textures and alteration features. The sequence of * Active marine zone where water flow combined with other factors result in precipitation of ara10 KB (1,352 words) - 19:07, 6 April 2022
- ==Arid zone characteristics== ==Humid zone characteristics==5 KB (674 words) - 21:22, 6 April 2022
- ==Arid zone characteristics== ==Humid zone characteristics==5 KB (708 words) - 21:00, 6 April 2022
- ...m has three main components: a [[reservoir]], an aquifer, and a transition zone (interface) between the two. * A '''transition zone''' is the interval of rock separating the reservoir from the aquifer; it is4 KB (579 words) - 14:34, 1 April 2022
- ...because the old one is worn down, or because the well is about to enter a zone whose conditions require a different bit type. This process of puling all450 bytes (82 words) - 13:57, 12 March 2019
- .../sub> distribution curves for several flow units for a hydrocarbon-bearing zone in a well. ...]. Above the transition zone, BVW is fairly constant. Below the transition zone, BVW is variable.5 KB (687 words) - 17:09, 5 April 2022
- ...oil and gas are trapped against the fault and have not leaked up the fault zone. ...|1}}Oil and gas trapped against the fault and have not leaked up the fault zone.]]2 KB (248 words) - 17:04, 28 March 2022
- ...t the base of a [[hydrocarbon column]] and the [[Fluid contacts|transition zone]]. Above this level, the reservoir produces water alone, hydrocarbon and wa525 bytes (76 words) - 14:40, 8 September 2014
- ...ment; vertical burrows may indicate shallow water, specifically the tidal zone, because the organisms moved up and down in the substrate as the tide ebbed907 bytes (132 words) - 21:42, 18 September 2014
- A zone that separates the Earth's [[crust]] from the underlying [[mantle]]. The Mo729 bytes (103 words) - 15:49, 4 December 2015
- ==Arid zone characteristics== ==Humid zone characteristics==6 KB (761 words) - 13:47, 7 April 2022
- * A seaward zone below normal wave base * A zone where wave energy interacts with sediment3 KB (433 words) - 18:32, 6 April 2022
- ...sses. Even though the eogenetic substage may be geologically brief and the zone thin, the [[diagenesis]] that occurs is more varied and generally more sign ...and erosion occurs along [[Unconformity|unconformities]]. The telogenetic zone extends from the surface to the point where surface processes no longer inf6 KB (727 words) - 19:06, 6 April 2022
- ...The table below lists ways to distinguish transition zone shows from waste zone shows (after Schowalter and Hess<ref name=ch09r55 />). ...are no longer connected in a column but are isolated in pores. A DST of a zone with residual hydrocarbons produces no oil or gas, and an RFT would not sho8 KB (1,130 words) - 17:09, 5 April 2022
- ...ub>w</sub> can be measured from a sample of formation water taken from the zone of interest at the well site or a nearby well, or it can be calculated usin ...t [[length::20 ft]] thick. (A bed thickness correction is necessary if the zone SP is measured from is less than [[length::20 ft]] thick.)6 KB (1,027 words) - 16:40, 5 April 2022
- ...from the source bed and the compound nature of the clay smear in the fault zone. (No scale on original figure.) ...hickness of each reservoir zone and Vcl is the clay volume fraction in the zone.]]8 KB (1,307 words) - 16:05, 14 December 2016
- ...sis techniques have different cutoffs for pyrolysis oil and gas generation zone boundaries. Pyrolysis T<sub>max</sub> can be significantly different for ty ! Hydrocarbon generation zone || Rock-eval pyrolysis T<sub>max</sub>, °c3 KB (411 words) - 21:19, 9 February 2022
- ...log parameters, the [[water saturation]] (S<sub>w</sub>) of the uninvaded zone in a formation next to a borehole. The Archie equation can be expressed as * S<sub>w</sub> = water saturation of the uninvaded zone5 KB (703 words) - 13:52, 5 April 2022
- ...one causes normal faults each pair. The process of formation of fault rift zone is typically a part of the formation of sedimentary basins. Initial sedimen4 KB (630 words) - 18:28, 2 April 2019
- ...The heavy trace in the center is a sonic log from the producing well. The zone of interest is at 1150 msec. ...version_fig4.png|{{figure number|4}}A schematic diagram of a river channel zone. Copyright: the Taber area of southern Alberta. The 3-D survey was done in8 KB (1,196 words) - 18:48, 21 January 2022
- ...ft]] at a depth of [[depth::5000 ft]]. As with the wavelength, the Fresnel zone size also increases rapidly with depth. [[Seismic migration]] effectively collapses the in-line aspect of the Fresnel zone, so this measure of resolution is not appropriate with the migrated seismic8 KB (1,164 words) - 20:24, 21 January 2022
- ...igher permeability than the wall rock will refract flow lines up the fault zone. Pressure differences along and across faults can also cause down-dip flow8 KB (1,130 words) - 17:14, 28 March 2022
- ...carbon accumulation forms when migrating hydrocarbon filaments encounter a zone (the seal), either laterally or vertically, with pore throat sizes smaller1 KB (206 words) - 17:37, 27 January 2015
- ...n a Buckles plot where the formation falls below the top of the transition zone.1 KB (183 words) - 18:19, 26 March 2015
- * How will the target zone(s) be evaluated? * Anticipated pay zone(s)6 KB (779 words) - 15:09, 24 January 2022
- ...et zone and the aperture size required for adequate imaging of that target zone.<ref name=pt07r64>Yilmaz, O., 1987 Seismic Data Processing: Society of Expl ...migrated section that are easily correlated with reflections outside that zone. When we do 2-D migration, we confine the movement of the energy into the p8 KB (1,201 words) - 20:24, 21 January 2022
- ...nd water in a formation. These estimated quantities are used to evaluate a zone and to determine whether a well completion attempt is warranted. As importa4 KB (543 words) - 14:11, 21 August 2014
- ...which is required for the calculation of water saturation in the uninvaded zone. The equation that relates the SSP to measurable quantities, namely, ''R''< ...e SP is outlined as follows. The data required include the SP, the invaded zone resistivity, the formation temperature, and the mud and mud filtrate resist13 KB (2,077 words) - 17:26, 18 January 2022
- ...hydrostatic pressure gradient to determine the expected pressures for the zone of interest as if it had no hydrocarbons. Pressures exceeding hydrostatic p ...than the hydrostatic gradient that may correspond to a hydrocarbon-bearing zone. A hydrostatic pressure–depth plot can be constructed from any of the fol7 KB (895 words) - 18:57, 16 February 2022
- ...pressure will ultimately exceed the [[displacement pressure]] of the fault zone and the fault will [[Cross-leaking faults|cross-leak]].<ref name=ch10r76>Sm ...e differential (AP) increases until the displacement pressure of the fault zone is exceeded and the fault begins to cross-leak. A fault in the Beryl field4 KB (530 words) - 15:21, 30 March 2022
- ...hydrostatic pressure gradient to determine the expected pressures for the zone of interest as if it had no hydrocarbons. Pressures exceeding hydrostatic p2 KB (207 words) - 18:56, 16 February 2022
- * Well pressure may be a primary consideration. If the open zone has experienced significant depletion, the circulation of fluids becomes di ...and (2) work done to shut off the existing zone in favor of opening a new zone, termed a ''recompletion''.12 KB (1,834 words) - 15:25, 24 January 2022
- ...hydrocarbons are found near or slightly above the top of the overpressured zone. The chance of success is reduced by 90–95% at depths of 2,000–5,000 ft4 KB (605 words) - 20:30, 30 March 2022
- ...ealing behavior of faults and the inferred sand–shale content of the fault zone.<ref name=ch10r7>Bouvier, J., D., Kaars-Sijpesteigen, C., H., Kluesner, D., ...R). A fault cross-seals or dip-seals if the sand–shale ratio is low in the zone (low SGR).9 KB (1,327 words) - 16:32, 29 March 2022
- ...zed by a zone of residual petroleum saturation thicker than the transition zone predicted by [[capillary pressure]] tests. Shows in traps that have leaked4 KB (571 words) - 18:06, 1 February 2022
- ...ationship between present-day depth and hydrocarbon production for a given zone ...strata form the [[lateral]] seal. The sinuous updip edge is a large waste zone that contains live oil shows in microporous strata, indicating the [[accumu5 KB (611 words) - 21:06, 4 February 2022
- Oil and gas zone boundaries can be established using vitrinite reflectance data. The boundar ...retation of the mean value would place this sample past the oil generation zone. The true reflectance of the indigenous vitrinite in this sample is 0.7% R<7 KB (970 words) - 14:28, 10 February 2022
- ...</ref>. Generally speaking, the Main Central Thrust is the ductile [[shear zone]], along which the Great Himalayan Crystalline complex was placed over the ...al Thrust; STD: the Southern Tibetan Detachment; ITS: Indus-Tsangpo suture zone.]]10 KB (1,434 words) - 15:39, 20 January 2016
- ==Zone distinctions== ! Depth zone7 KB (921 words) - 18:09, 24 January 2022
- ...m. This is contrasted to cooler water carbonate settings where the photic zone extends to [[length::100 m]] or deeper. Tropical carbonate faunal assemblag | Photic zone depth || 20–30 m || 100 m+7 KB (894 words) - 20:54, 6 April 2022
- ...fference in density at the arrow is caused by a remote higher [[porosity]] zone not detected by the gamma-gamma density log. The broader difference anomaly ...e oil has a gas cap. Frequently, these reservoirs have an underlying water zone. The shape of these interfaces over time is critical to production strategy11 KB (1,596 words) - 18:08, 24 January 2022
- ...bon column]]. Macropore reservoirs have little or no saturation transition zone. ...he rock in container 2 is macroporous. Container 1 has a longer transition zone than container 2 because of this. Both containers have the same buoyancy pr5 KB (752 words) - 16:53, 4 April 2022
- * [[Subduction zone]]2 KB (257 words) - 19:24, 27 July 2015
- | Lacustrine shore zone and delta ...s fluid relationships (such as a gas zone underlying an oil zone or an oil zone downdip of water)8 KB (983 words) - 20:49, 19 January 2022
- | Producing zone oil or new zone | New oil (zone) or same oil14 KB (2,013 words) - 16:48, 20 January 2022
- ...8/1150/1185.htm Three-dimensional seismic interpretation from the triangle zone of the frontal Ouachita Mountains and Arkoma basin, Pittsburg County, Oklah ...wton, D., C., Spratt, D., A., 1996, Seismic interpretation of the triangle zone at Jumping Pond, Alberta: Bulletin of Canadian Petroleum Geology, vol. 44,5 KB (712 words) - 21:27, 2 February 2022
- ...nd basins attract the minds of geologists. The profound role of subduction zone emerges as methods in geophysics reveal the structure and composition of ma ...ove inside the Earth. According to the types of involved crust, subduction zone has two separate types: island-arc and active [[continental margin]] (ACM).27 KB (4,033 words) - 20:52, 27 March 2019