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  • Petroleum exploration
    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
    15 KB (2,331 words) - 19:12, 17 April 2019
  • Well completion
    ...with a dual or triple completion in reservoirs deeper than [[depth::10,000 ft]]. well-completions_fig5.png|{{figure number|5}}Wellbore diagram of a conventional triple completion.
    19 KB (2,910 words) - 21:06, 18 January 2022
  • Magnetics
    ...h::100 ft]] above the earth's surface, but heights of 500 to [[depth::1500 ft]] are more typical. The line spacing for complete detail should not be much ...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
    10 KB (1,481 words) - 15:39, 24 January 2022
  • Dipmeter
    ...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
    14 KB (2,128 words) - 17:25, 18 January 2022
  • Eolian reservoirs
    ...large-scale sand blankets. These may be very thick (more than 300 m [1000 ft]), and cover hundreds of square kilometers.<ref name=Richardsonetal_1988a>R .... 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.
    19 KB (2,690 words) - 18:42, 1 August 2016
  • Meandering fluvial reservoirs
    ...SEG (Society of Exploration Geophysicists) Geophysical Developments Series 5, p. 45–56.</ref>). Reprinted with permission from the AAPG.]] ...g river deposits in his database is only 38 m (124 ft), with 4–20 m (13–65 ft) as a common thickness range. Gibling makes the comment that despite their
    32 KB (4,727 words) - 21:03, 15 January 2024
  • Preprocessing of logging data
    ;5. Edit logs to eliminate invalid data: Erroneous data can be recorded in cas ...eference before data processing can continue. A depth shift of [[length::3 ft]] can destroy an otherwise good correlation among logging measurements or b
    13 KB (2,094 words) - 17:42, 18 January 2022
  • Deltaic reservoirs
    ...d that distributary channels show a common width range of 10–300 m (33–984 ft) (see Table 2). Distributary channels tend to be straight where they incise ...) || 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
    34 KB (4,776 words) - 18:18, 5 January 2024
  • Rock-water reaction: formation damage
    ...er-balanced (1000 psi) Increase well rate slowly Maximize perforations per ft Select rate less than critical velocity Use clay stabilizer || Preflush if ...e have cation exchange capacity (CEC) values of approximately 100, 20, and 5, respectively, Thus, total brine cation concentration must be higher to pre
    17 KB (2,380 words) - 18:23, 21 January 2022
  • Relationship between porosity and permeability on fractured basement reservoir
    ...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
    29 KB (4,601 words) - 16:09, 12 April 2016
  • Capillary pressure
    ...ng rock types (A-E) due to diffferences in capillarity. For example, at 50 ft above free water level, water saturations vary from 18% (rock type A) to 95 * ''h'' = height above the free water level (in ft)
    23 KB (3,315 words) - 16:59, 19 January 2022
  • Data: sources
    ...n: Presented at Offshore Europe, Society of Petroleum Engineers, September 5–8, Aberdeen, United Kingdom, [https://www.onepetro.org/conference-paper/S ...ments (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 for
    43 KB (6,686 words) - 13:44, 18 March 2019
  • Marcellus Shale (Devonian) -- Appalachian Basin
    ...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).
    19 KB (2,773 words) - 21:36, 4 March 2022
  • Faults: structural geology
    [[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
    63 KB (9,496 words) - 16:51, 15 January 2024
  • Wattenberg field
    ...y or tertiary recovery. Items 1 through 4 occurred at Wattenberg, and item 5 is currently being tested. Unconventional fields experience field growth ju ...akota Plainview in 1998. Production occurs from approximately 4000 to 8500 ft below the surface across the field. Reservoir quality in the various horizo
    72 KB (10,249 words) - 20:06, 15 January 2024
  • Three-dimensional modeling of clinoforms in shallow-marine reservoirs
    ...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 ...a volume smaller than most reservoirs (500 × 500 × 25 m [1640 × 1640 × 82 ft]). Sech et al.<ref name=Sch09 /> used a surface-based modeling approach to
    113 KB (16,689 words) - 22:11, 15 January 2024
  • Iraq petroleum geology
    ...parsely populated area of desert and low hills, mostly 300–500 m (984–1640 ft) above sea level (msl). The highest elevation here occurs at Jabal ‘Unayz ...) 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
    78 KB (7,926 words) - 16:25, 30 January 2017
  • Land description and maps
    | frompg = 5 ...ection and length of any particular line, such as "north 40&deg; east, 200 ft."]
    15 KB (2,269 words) - 19:25, 19 January 2022
  • Carbonate reservoir
    ...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
    38 KB (5,571 words) - 15:31, 16 January 2024
  • Quick-look lithology from logs
    ...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
    25 KB (3,637 words) - 19:39, 18 January 2022

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