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| frompg = 5-19 | topg = 5-19

| frompg = 5-1 | topg = 5-64

| frompg = 5-6 | topg = 5-6

...[[length::2 in.]] to [[length::100 ft]] (1:600) and [[length::5 in.]] to [[length::100 ft]] (1:240). This track also includes the location (depth or interval ===Tracks 4 and 5: hydrocarbon evaluation===

| frompg = 5-27 | topg = 5-28

...ess correction is necessary if the zone SP is measured from is less than [[length::20 ft]] thick.) # Read the maximum SP response in a zone at least [[length::20 ft]] thick.

...this case [[vitrinite reflectance]], right figure) and follow across at [[length::2.1 km]] until you reach the maturity profile. This vitrinite reflectance | 5

...frequency, and the length of the interval. Associating a variation in arc length with a physical change in the geology is possible, but it can be more chall ...W., 1986, Interactive fault mapping: a case study: The Leading Edge, vol. 5, no. 9, p. 1262–1272., 10., 1190/1., 1439303</ref> Denham and Nelson<ref

[[file:using-magnetics-in-petroleum-exploration_fig14-5.png|300px|thumb|{{figure number|1}}Geologic map of an area of crystalline [ ...bility. As shown in [[:file:using-magnetics-in-petroleum-exploration_fig14-5.png|Figure 1]], the basement is of complex lithology and is highly fracture

...xperimental study of secondary oil migration]: AAPG Bulletin, vol. 76, no. 5, p. 638–650.</ref> These experiments at best have column heights 19–23% ...mn of hydrocarbon in the field in the Tar Springs Formation reservoir is [[length::29 m]] [[depth::(95 ft]]).

| frompg = 5-1 | topg = 5-64

...gamma-gamma density log. The broader difference anomaly observed over the length of the interval is explained by the influence of the entire reef complex. ...after hydrofracturing the reservoir. In Case #4 the missed pay is about [[length::1 m]] from the well, and the density difference is very pronounced. Such p

| topg = 11-5 ...hese accumulations are at least [[length::250 m]].y. old—maybe as old as [[length::300 m]].y.

| frompg = 10-5 | topg = 10-5

...ght of the [[hydrocarbon column]]. Seals can be extremely thin—less than [[length::1 m]] thick that seal individual hydrocarbon [[accumulation]]s. There are ...tion of trapping effect of unfaulted caprock]: AAPG Bulletin, vol. 65, no. 5, p. 964.</ref><ref name=ch10r75>Slujik, D., Nederlof, M., H., 1984, [http:/

...sediments near Lilstock, U.K., shows a gouge zone approximately [[length::5 m]] thick. The gouge consists predominantly of ductile shales and marls as

...but too tight to produce. Between these are [[length::30 ft]] [[depth::(8.5 m]]) of mesoto macroporous sandstone (flow units 1-4). ...ater production is remarkable, considering that the well lies only about [[length::25 ft]] (7 m) above the [[free water level]].

| frompg = 5-21 | topg = 5-25

...ub> point. Use a linear scale to measure the slope; for example, go down [[length::1 in.]] and over 2 in. ==Step 5: plot s_w lines==

| 1-5 | Chart 5

...ma-gamma [[density log]]. The broader difference anomaly observed over the length of the logged interval is explained by the structural influence of the reef ...g (VSP)]] surveys. The BHGM is stopped at each planned survey level, and a 5- to 10-min reading is taken. The blocky appearance of the log reflects the

...rom [[length::1.5 ft]] for short radius horizontal wells to greater than [[length::400 ft]] for vertical holes. ! Inner Barrel || Core Length (ft) || Special Features

...etration is calculated by measuring the length of time required to drill [[length::1 ft]] of depth. This is typically done by reading the chart on the geolog ...nk pen on the geolograph places a small mark on the chart. Every [[length::5 ft]] the pen places a larger mark on the chart ([[:file:rate-of-penetration

...condary hydrocarbon migration and entrapment]: AAPG Bulletin, vol. 63, no. 5, p. 723–760.</ref> Wells and Amaefule<ref name=ch10r94>Wells, J., D., Ama * Most good sands can trap only [[length::50 ft]] or less of oil column.

...cted for each joint of drill pipe added to the drill string (i.e., every [[length::30 ft]], or 9 m) and represents an amalgamated sample of the rocks penetra ...vals for each joint of drill pipe added to the drill string (i.e., every [[length::30 ft]], or 9 m). However, the geologist can specify a different interval

file:seismic-data-acquisition-on-land_fig5.png|{{figure number|5}}(a) Off end shooting. (b) Split spread shooting. ...me examples include dynamite in “shot holes” ranging in depth from 10 to [[length::300 ft]] (3 to 100 m) and primacord in trenches covered by a few inches of

...carbonate and sandstone reservoirs: Amoco Production Company Report F76-G-5, 25 p. (unpublished).</ref> developed the following equation to calculate r ...cting-reservoir-system-quality-and-performance_fig9-20.png|{{figure number|5}}Hypothetical capillary pressure curves.

...[:file:workovers_fig1.png|Figure 1]]. The production casing is only 5 to [[length::9 in.]] in diameter, and it has been run into a corkscrew-shaped hole that ...asons just noted are generally completed to yield a profit in a reasonable length of time. Those done for the following reasons may have little profit incent

...[conglomerate|conglomeratic]] reservoir, where the clast size can exceed [[length::6 in.]] or more. Any attempt to determine an average porosity from convent ...3</sup> of material measured. When this is compared to a 1-in. core plug [[length::3 in.]] long, the log measures almost 400 times the volume measured by the

seismic-inversion_fig5.png|{{figure number|5}}The model-based inversion of the line through the river channel system of ...nsional data]]). Borehole B from [[:file:seismic-inversion_fig5.png|Figure 5]], which was the dry hole, is indicated by the faint white crosshairs at th

...ismic_trace traces] for interpretation. The receiver spacing is usually [[length::10 ft]]. This gives actual [http://wiki.seg.org/wiki/Dictionary:Traveltime ...ery coarse velocity data can be obtained from a checkshot survey with only 5 or 6 traveltimes per well.

...cy|Henry Darcy]] in 1856 is comparable to the pressure difference per unit length. This relationship was derived from data obtained from several experiments :L = core length, cm

...materials to investigating resistivities down to depths as great as 1 to [[length::2 km]], although greater depths of investigation are possible with some te ...etic methods: Proceedings of the IEEE, v. 77, n. 2, p. 338–362., 10., 1109/5., 18630</ref> This primary EM field induces currents in subsurface conducto

...he gravity flows); 4 = deep-water deposits of the northern Adriatic Basin; 5 = condensed deposits of the Rosso Ammonitico Veronese (lower member). From file:sedimentary-basin-analysis_fig4-38.png|{{figure number|5}}Net sand distribution of shelf areas contoured parallel to the shelf edge

...eflect the various lithologies drilled over a 10-ft interval. The interval length can vary depending on the drilling rate and the detail needed for reservoir ...re typically washed through a 5-mm sieve. Particles greater than [[length::5 mm]] usually contain a high percentage of lost circulation material and cav

| Gamma ray || [[length::2 ft]] || [[length::12 in]] || Well-to-well correlation and estimate ''V''_sh || Sen | Spectral gamma ray || [[length::3 ft]] || [[length::16 in]] || Well-to-well correlation and estimate ''V''_sh || Sen

...structures. This method generates seismic cubes according to the depth and length of the seismic line and the width of the hydrophones arrangement. ...s of platforms: 1, 2) conventional fixed platforms; 3) compliant tower; 4, 5) vertically moored tension leg and mini-tension leg platform; 6) spar; 7, 8

...an at 20 kHZ; (2) the source-receiver spacing is longer, on the order of [[length::10 ft]] (3.05 m); and (3) the receiver is commonly an array consisting of ...ed and digitized, with the typical digitization interval being 5 μsec. The length of the time window recorded varies from 2 to 10 msec, depending on the sour

exploring-for-structural-traps_fig20-5.png|{{figure number|2}}Tectonic setting for the western U.S. relevant to La [[:file:exploring-for-structural-traps_fig20-5.png|Figure 2]] depicts the tectonic setting for the western U.S. relevant t

...sed by fault throws or basement highs unless basement is deep (> [[length::5 km]], approximately). In this case the slightly magnetic sedimentary rocks

...ks: The University of Texas at Austin, Bureau of Economic Geology Handbook 5, 43 p.</ref> and Boyles et al.<ref name=pt05r28>Boyles, J. M., A. J. Scott, ...(1.3 mm) high. Usually a scale of [[length::1 in]] = [[length::5 ft]] or [[length::10 ft]] is appropriate.

wellbore-trajectory_fig5.png|{{figure number|5}}Kicking off with a jet bit.]] ...tom in the desired trajectory ([[:file:wellbore-trajectory_fig5.png|Figure 5]]). Weight is applied to the bit while it is rotated into the pocket. This

[[file:UreigaAlmandiFigure5.jpg|thumb|200px|{{figure number|5}}Guns' conveyance methods.]] ...plug the perforation hole. 42֯ is the optimum angle that would affect the length and diameter of the shots. After the shots have been detonated, the shape o

...uses the fracture to extend from the wellbore, and this growth in fracture length is accompanied by an increase in fracture width at the wellbore and proport [[file:stimulation_fig5.png|300px|thumb|{{figure number|5}}Proppant is introduced to fracture.]]

File:Sedimentary-basin-analysis fig4-43.png|{{figure number|5}}North-South seismic section through the East Breaks 160-161 field. ...is_fig4-42.png|Figures 4]], [[:file:sedimentary-basin-analysis_fig4-43.png|5]], and [[:file:sedimentary-basin-analysis_fig4-44.png|2]]). The 160-1 elect

...arlougher, R. C., 1977, Advances in well test analysis: SPE Monograph Vol. 5, Society of Petroleum Engineers, New York, p. 90–103.</ref><ref name=pt03 ===Length of test interval===

well-completions_fig5.png|{{figure number|5}}Wellbore diagram of a conventional triple completion. ...ell-completions_fig4.png|Figures 4]] and [[:file:well-completions_fig5.png|5]] illustrate these multiple completions.

...te that the curves are responding to apparent bedding features less than [[length::1 in.]] thick. ...harply distinguishes between [[sandstone]] and shale layers thinner than [[length::1 in.]] By establishing a cutoff line as shown, everything to the right ca

...of keeping it substantially within the reservoir target until the desired length of horizontal penetration is reached ([[:File:M91Figure161.JPG|Figure 1]]). ...steering efficiency of a horizontal well; the percentage of the total well length within the target zone beyond the entry point. Modern LWD resistivity logs

| Frequency || 5-1000 Hz || 5-1000 Hz || Harmonics > 1000 Hz | Length || 9.88 m (32.4 ft) || 22.50 m (83.8 ft) || Tool string length

| L_s || Length of pump stroke || in. ...'''': If a 10,000-ft-deep hole contains drilling fluid with a weight of 11.5 ppg (pounds per gallon), the hydrostatic pressure at the bottom of the hole

| 5–50 | 0.5–5

...rowspan=2 | Detailed seismic || colspan=2 | Reservoir pressure || colspan=5 | Production data/tests || colspan=3 | Well logging || colspan=2 | Rock sa ...s normally range from 100 to [[length::300 m]] in diameter and from 5 to [[length::15 m]] in thickness (see [[Conducting a reservoir simulation study: an ove

...of keeping it substantially within the reservoir target until the desired length of horizontal penetration is reached ([[:file:M91Figure161.JPG|Figure 1]]). ...steering efficiency of a horizontal well; the percentage of the total well length within the target zone beyond the entry point. Modern [[Logging while drill

...nd the fault seal capacity: Journal of the Geological Society, v. 163, no. 5, p. 741-751.</ref>).]] ...e corresponding position on the diagram ([[:file:GumelarFigure5.jpg|Figure 5]]) using this technique, the alignment of the relationship positions at any

* ''L'' = length (cm) ...which considered the porous media as a bundle of capillary tubes of equal length. Modifications to account for tortuosity of flow paths in the porous media

...construction of balanced cross-sections: Journal of Structural Geology, v. 5, no. 2, p. 101.</ref> ...ncing strives to balance one or more aspects of the geometry (e.g. horizon length, formation cross-sectional area).

...bsurface-stratigraphic-and-structural-information_fig5.png|{{figure number|5}}Circular approximations of a curved well course showing angles used for th | 5.23

...vely. Gas and oil contacts are at elevations of [[length::-5020 ft]] and [[length::-5080 ft]], respectively. [[file:fluid-contacts_fig5.png|300px|thumb|{{figure number|5}}Irregular contact caused by semipermeable barriers in a reservoir. (a) Cap

| 5 ...b>o</sub> at [[length::3.7 km]], then we can predict that the section at [[length::3.7 km]] is mature for liquid generation and has generated a liquid hydroc

;5. Edit logs to eliminate invalid data: Erroneous data can be recorded in cas ...on depth reference before data processing can continue. A depth shift of [[length::3 ft]] can destroy an otherwise good correlation among logging measurement

Members include ethene 2 -carbons, butene 4 -carbons, pentene 5- carbons, etc. ...below the plane of the rings, due to this, all the c-c bond have the same length. This compound is also stable as a result of its resonance energy (36kcal/m

file:sedimentary-basin-analysis_fig4-56.png|{{figure number|5}}North–south seismic section showing the hypothetical model for migration ...to-outer neritic [[Fossil assemblage|biofacies]] boundary [approximately [[length::600 ft]] (200 m) water depth]. Thus, they are downslope from the shelf/slo

...ure of petroleum]: Oil & Gas Science and Technology – Rev. IFP, v. 59, no. 5, p. 467–477.</ref> ...reservoirs by detection of signature metabolites]: Scientific Reports, v. 5. article no. 9801.</ref>

* Gauge: Used is used to determine the length of an outcrop or structure. File:5.jpg|{{figure number|5|}}Lithology symbols<ref>http://www.bssaonline.org/content/92/7/2704/F14.lar

file:sem-xrd-cl-and-xf-methods_fig5.png|{{figure number|5}}A photomicrograph taken under cathodoluminescence showing concentric zonin In SEM analysis, samples up to [[length::4 in.]] in diameter are struck by a focused beam of electrons in a vacuum

''Whole core analysis'' examines the complete length of full-diameter core in the interval being tested and affords the maximum ...gas condensate zones are 10 to 15% higher, while values from oil zones are 5 to 10% higher.

...gether. Over smooth terrain, the [[magnetometer]] can be flown as low as [[length::100 ft]] above the earth's surface, but heights of 500 to [[depth::1500 ft ...rth America: Boulder, CO, Geological Society of America, 4 sheets, scale 1:5,000,000.</ref> showed results on a continental scale. Paterson and Reeves<r

...structure and probability factor f. B. Matrix and fracture on porous f = 0,5 (Erlich, 1971) ...s, shows comparative size in matrix with probability fracture factor f = 0,5. Residual saturation of oil has been evaluated by Erlich model with dimensi

...s to Mineral Petrology, vol. 151, pp. 413–433. doi:10.1007/s00410-006-0068-5</ref> In zircon crystals, [[Titanium]] is commonly incorporated, replacing ...zircon microscope.jpg|right|150px|thumb|Optical microscope photograph; the length of the crystal is about 250 [[µm]].]]

.... The width-to-thickness ratio is estimated as between 50:1 and 100:1. The length-to-thickness ratio is estimated as 200 to 1. ...ming, well spacing has been reduced successively from 40- to 20- to 10- to 5-ac spacing, in some cases without interwell interference.<ref name=Mccaleb_

...onally, the A-29 borehole mud weight of [[weight::13.5 lb]] below [[depth::5,000 ft]] (1524 m) and [[weight::15.7 lb]] below [[depth::7,000 ft]] (2134 m ...l B'' horizons is productive from sands in the East Breaks 158-159 field [[length::6 mi]] (about 10 km) to the west within the same minibasin.

...ith 13 3/8-in. (33.95-cm) casing; 12 1/4-in. (31.11-cm) hole, cased with 9 5/8-in. (24.43-cm) casing; and 8 1/2-in. (21.59-cm) hole, cased with a 7-in. ...wn the well. For example, the drill pipe may twist off somewhere along its length and fall to the bottom of the hole. The drilling operation will come to a h

...ellus Shale had mean random vitrinite reflectance values between 1.0 and 2.5% in the majority of the currently productive area, where most production ha ...imate of NGL resources ranged from 0.5 to 3.02 billion bbls (95 percent to 5 percent probability, respectively).

...on a stratigraphic horizon or datum that can be correlated along the full length of the cross section, the data are transformed to reflect a different horiz | rowspan = 6 | Five times || 1° || 5°

...e have cation exchange capacity (CEC) values of approximately 100, 20, and 5, respectively, Thus, total brine cation concentration must be higher to pre ...he pretreatment should be of sufficient volume to reach at least [[length::5 ft]] into the formation.

...aldi-robert-m-sneider_capillary-pressure_5.jpg|thumb|300px|{{figure_number|5}}Effect of capillary pressure (left) on water saturation (right). At any gi ...rles-l-vavra-john-g-kaldi-robert-m-sneider_capillary-pressure_5.jpg|Figure 5]]). (For information on the application of capillary pressure data to evalu

...e winching system often ruins SP logs. Look for a sine-form SP whose cycle length is the circumference of the cable drum. ...le, so expect mudcake to cause a caliper reading that is about [[length::0.5 in.]] smaller than the bit size. Bed boundaries are often accurately delimi

| frompg = 5 ...map. [Editor's note: A ''course'' is the combination of the direction and length of any particular line, such as "north 40&deg; east, 200 ft."]

UGM_Petroleum_Exploration_Fig_5.png|{{figure number|5}}Land Seismic Acquisition (Source: [https://www.oilinuganda.org/ Oil in Uga [[File:UGM_Petroleum_Exploration_Fig_7.png|thumb|upright=2.5|center|{{figure number|7}}Vertical section illustrating CMP recording The 0

...tionship of the various sedimentary bodies; they also permit the width and length of the various macroforms to be readily measured. ...Production: AAPG Studies in Geology 42/SEG Geophysical Developments Series 5, p. 45-56.</ref>]]

...carbonate sand body with a mobile border 25 km (15 mi) long and between 0.5 and 2 km (0.3 and 1.2 mi) wide.<ref>Major, R. P., D. G. Bebout, and P. M. H ...r|1}}Ooid shoal, Bahamas; the bottom edge of the photograph represents a 4.5-km (2.7 mi)-wide transect. The lower inset is an illustration of a cliff ex

[[file:M91Ch13FG83.JPG|thumb|300px|{{figure number|5}}A pressure buildup test can be used to detect faults near the wellbore. Th ...and comes in contact with the fault plane ([[:file:M91Ch13FG83.JPG|Figure 5]]). Analytical methods are available to make a rough estimate of how far aw

...d versus unconsolidated), the core analysis measurements required, and the length of time the core is stored before testing. | Barex (R) 210 Resin || 0.4 || 3.5 || 0.8

...) and Dijlah (Tigris) Rivers, which flow from Turkey and Syria through the length of Iraq to the Gulf of Arabia via the Shatt al Arab. The elevation at the I ...[[:file:M106Ch12Fig04.jpg|Figure 4]] and [[:file:M106Ch12Fig05.jpg|Figure 5]].

...n: Presented at Offshore Europe, Society of Petroleum Engineers, September 5–8, Aberdeen, United Kingdom, [https://www.onepetro.org/conference-paper/S ...rements (Monicard, 1980). Vertical core plugs may also be cut every 1.5 m (5 ft) for example. On occasions, large pieces of full-diameter core are used

...) || 50 m-1300+ km (164 ft-808+ mi); many > 1 km (0.62 mi); common range 0.5-10 km (0.3-6 mi) || 15-15,000+; some > 1000; common range 50-1000 ...on range 10-300 m (33-984 ft) || 2-245; most < 50; many < 15; common range 5-30

...tructures in the Recent sediments of the Jade, North Sea: Marine Geol., v. 5, p. 227-235.</ref> Because of high lateral migration rates and shallow dept ...attern that displays high sinuosity in plan view (sinuosity greater than 1.5). Meanders are most commonly associated with rivers displaying nonerratic f

...SEG (Society of Exploration Geophysicists) Geophysical Developments Series 5, p. 45–56.</ref>). Reprinted with permission from the AAPG.]] ...res.geoscienceworld.org/content/76/5/731?related-urls=yes&legid=jsedres;76/5/731 Width and thickness of fluvial channel bodies and valley fills in the g

...he gas/oil-bearing strata and the deepest fresh water aquifer is more than 5,000 feet. In others, as in the San Joaquin Valley, this distance can be mor ...ertical section and a long horizontal section of another 6,000-10,000 feet length at depth – the fracture stimulation of the horizontal section is conducte

...[[http://en.wiktionary.org/wiki/isochronous isochronous]] along the whole length of the [http://www.merriam-webster.com/dictionary/orogen orogen]. file:St58OverviewFG29.JPG|{{figure number|5}}Cuba. 94 Ma: Cenomanian.<ref name=Pardo_2009 />

...Upper Cretaceous Ferron Sandstone Member, Utah]: AAPG Bulletin, v. 95, no. 5, p. 693–727, doi: 10.1306/09271010025.</ref>). Note the dipping nature of ...us shales on reservoir performance during immiscible flow: SPE Journal, v. 5, no. 4, p. 446–455, doi: 10.2118/69751-PA.</ref>), but at present, there

...r|3}}Cores of distributary-mouth bar sequence. Diameter of cores is 13 cm (5 in.). A. Smooth, gray, partially laminated clays of the prodelta deposits. For a given length of time, prodelta deposits are thicker (because of high sedimentation) than

...y or tertiary recovery. Items 1 through 4 occurred at Wattenberg, and item 5 is currently being tested. Unconventional fields experience field growth ju ...and trapping mechanisms. Technological factors include well type, lateral length, number of hydraulic fracturing stages, proppant volume and type, proppant

...2007, Medical geology: A globally emerging discipline: Geologica Acta, v. 5, no. 3, p. 273—281.</ref> | As || 1 || 2 || 1.5 || 15 ||2.5

...ks in these sectors show the best reservoir characteristics (averages: TOC 5%; porosity 12%; clay 10%–20%; water saturation 20%), the most adequate ge ...il 2019), approximately 500 kboe/d as current production, and estimated 14.5 Bboe of proved plus probable reserves (2P) ([[:file:M125-VacaMuerta-Figure2

...than production from existing open natural fractures. To date, more than 2.5 tcf has been produced from the Big Sandy field,<ref name=Dw1986 /> and it s ...rn era of shale-gas development. The discovery well, the Cabot Oil and Gas 5 Teel, was the first new oil and gas well drilled in Susquehanna County in 3

...ce systems have substantiated the volume of oil they contain, for example, 5.88253 times 107 m3 (370 million bbl of oil equivalent [BOE]) in the [[Barne ...eg API oil and 481.4 m3/day (17 mcf/day), with a gas-oil ratio (GOR) of 19.5 m3/m3 (109 scf/bbl) according to a scout ticket for this well.