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  • File:Borehole-gravity fig1.png
    ...y between 6330 and 6370 ft is caused by porosity not detected by the gamma-gamma density log. The broader difference anomaly observed over the length of the
    (933 × 1,451 (17 KB)) - 15:41, 14 January 2014
  • File:Rate-of-penetration fig2.png
    Example of correlating ROP with gamma ray curves.
    (954 × 1,212 (89 KB)) - 17:58, 14 January 2014
  • File:M106Ch07Fig04.jpg
    ...alues of greater than 1–2%, depending on the degree of thermal maturation. Gamma-ray values in some wells have been adjusted according to offset shale basel
    (564 × 855 (75 KB)) - 20:49, 18 April 2016
  • Distributary channel
    * [http://www.searchanddiscovery.com/documents/nanz/images/23.htm Gamma-ray and resistivity response]
    419 bytes (57 words) - 15:36, 6 January 2015
  • File:Basic-open-hole-tools fig1.png
    A typical log showing SP, gamma ray, dual Induction, and sonic measurements. Copyright: Schlumberger, 1983.
    (948 × 2,429 (78 KB)) - 18:21, 13 January 2014
  • File:Basic-open-hole-tools fig2.png
    A typical log showing density, compensated neutron, Pe, gamma ray, and caliper measurements. Copyright: Schlumberger, 1983.
    (944 × 2,424 (71 KB)) - 18:21, 13 January 2014
  • Special field techniques
    ==Outcrop gamma-ray logging==
    3 KB (412 words) - 22:40, 1 February 2022
  • File:Lithofacies-and-environmental-analysis-of-clastic-depositional-systems fig2.png
    Gamma ray correlation (dip section) of a series of prograding shoreface sandstone
    (943 × 448 (16 KB)) - 21:36, 13 January 2014
  • File:M91FG195.JPG
    ...hile (from Beaubouef, 2004). The lower section shows a series of idealized gamma ray logs. Reprinted with permission from the AAPG.
    (800 × 669 (93 KB)) - 15:36, 17 August 2015
  • File:M91FG188.JPG
    ...ska (from Tye et al., 1999). Reprinted with permission from the AAPG. GR = gamma ray. From Shepherd, M., 2009, Deltaic reservoirs, in M. Shepherd, Oil field
    (800 × 385 (54 KB)) - 16:21, 20 August 2015
  • File:M91FG112.JPG
    ...et al., 1999). Reprinted with permission from the Geological Society. GR = Gamma Ray; RFTtrade = Repeat Formation Tester; UKCF = Upper Kimmeridge Clay Forma
    (800 × 856 (118 KB)) - 19:29, 18 August 2015
  • File:M91Ch6FG43.JPG
    Gamma-ray, density, neutron, and sonic log response of a sandstone and shale sequ
    (800 × 827 (107 KB)) - 17:07, 3 June 2015
  • File:Geological-cross-sections fig2.png
    ...ake the cross section more compact. The left track of each log is an SP or gamma ray trace and the right track is a resistivity trace. (From Slatt et al., 1
    (1,921 × 1,041 (171 KB)) - 15:32, 14 January 2014
  • Capillary pressure (Pc): buoyancy, height, and pore throat radius
    ...P_{\text{c system2}} \left ( \frac{\gamma \cos \Theta \text{ of system1}}{\gamma \cos \Theta \text{ of system2}} \right )</math> ...c res}} = P_{\text{c lab}} \left ( \frac{\gamma \cos \Theta_{\text{res}}}{\gamma \cos \Theta_{\text{lab}}} \right )</math>
    6 KB (850 words) - 17:22, 4 April 2022
  • File:M91Ch11FG72.JPG
    ...rinted with permission from the AAPG. SP = spontaneous potential log; GR = gamma-ray log. Shepherd, M., 2009, Lithofacies maps, in M. Shepherd, Oil field pr
    (800 × 658 (69 KB)) - 15:51, 27 April 2015
  • File:Lithofacies-and-environmental-analysis-of-clastic-depositional-systems fig3.png
    ...of major depositional environments. The curve on the left shows the SP or gamma ray response and the curve on the right shows the relative grain size profi
    (1,950 × 1,563 (201 KB)) - 21:37, 13 January 2014
  • Cased hole tools
    | rowspan = 2 | Correlation || [[Basic open hole tools#Gamma ray|Gamma ray]] | Spectral gamma ray
    10 KB (1,427 words) - 16:26, 18 January 2022
  • Seismic data: identifying reflectors
    ...open hole tools#Resistivity|electric]], [[Basic open hole tools#Gamma ray|gamma ray]], etc.). It is important to realize that a sonic log never goes to the
    2 KB (348 words) - 19:10, 27 January 2022
  • Using conventional well logs to estimate richness
    ...e measured using density sonic, neutron, [[Basic open hole tools#Gamma ray|gamma ray]], and [[Basic open hole tools#Resistivity|resistivity logs]]. The tabl | Gamma ray (GR) or uranium (U) || High || High GR caused by U; can be linear with
    5 KB (768 words) - 15:48, 9 February 2022
  • Borehole gravity applications: examples
    ...nts. (right) Density values measured by the BHGM (left line) and the gamma-gamma tools (right line). Copyright: Rasmussen;<ref name=Rasmussen>Rasmussen, N. ...w is caused by a remote higher [[porosity]] zone not detected by the gamma-gamma density log. The broader difference anomaly observed over the length of the
    11 KB (1,596 words) - 18:08, 24 January 2022

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