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• Buoyancy pressure
  ...occur together, they create a buoyancy pressure that is a function of the density difference between the two fluids and the length of the less-dense fluid co * ρ_w = density of water, g/cm³
  4 KB (596 words) - 18:37, 17 February 2022
• Borehole gravity applications: examples
  ...density measurements and the gamma-gamma log density measurements. (right) Density values measured by the BHGM (left line) and the gamma-gamma tools (right li ...aused by a remote higher [[porosity]] zone not detected by the gamma-gamma density log. The broader difference anomaly observed over the length of the interva
  11 KB (1,596 words) - 18:08, 24 January 2022
• Pressure prediction: analysis of well-log and seismic data
  [[Basic open hole tools#Resistivity|Resistivity]], sonic, and density logs (as well as some others) can give clues to the presence of over- or un ...depth, mark the value of resistivity, conductivity, sonic travel time, or density.
  5 KB (733 words) - 17:57, 17 February 2022
• Migration rate calculation
  ...a, including [[permeability]] of carrier beds, [[viscosity]] of oil, fluid density, and [http://www.glossary.oilfield.slb.com/en/Terms/p/pore_pressure.aspx po * ρ_hc = hydrocarbon density (kg/m³)
  4 KB (618 words) - 19:40, 14 February 2022
• Borehole gravity
  ...n 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 logge ...e [[gravity]] meter (BHGM) can be described simply as a deep-investigating density logging tool. Applications range beyond this simple description to include
  10 KB (1,517 words) - 15:54, 20 January 2022
• Using conventional well logs to estimate richness
  ...ydrogen and carbon contents. All of these attributes can be measured using density sonic, neutron, [[Basic open hole tools#Gamma ray|gamma ray]], and [[Basic | Density || Low (approx. 1 g/cm³ ) || Similar to pore fluids
  5 KB (768 words) - 15:48, 9 February 2022
• Borehole gravity tool
  ...tion_fig15-10.png|300px|thumb|{{figure number|1}}Fundamentals of measuring density using a borehole gravity sensor. From Schowalter;<ref name=Schowalter1979>S ...y of the intervening layer. The result is a direct computation of the bulk density of that layer.
  5 KB (720 words) - 18:07, 24 January 2022
• API gravity
  ...of the American Petroleum Institute (API) that is inversely related to the density of liquid petroleum: API [[gravity]] = (141.5&deg;/[secific gravity at 16&d
  951 bytes (140 words) - 14:03, 25 February 2016
• Designing a surficial geochemical survey
  ...s.com/data/specpubs/memoir66/18/0243.htm Importance of sampling design and density in target recognition], in D. Schumacher and M. A. Abrams, eds., Hydrocarbo ==Sample density==
  6 KB (826 words) - 17:33, 25 January 2022
• Hydrocarbon column: calculation of maximum height
  * ''ρ_w'' = density of water, g/cm³ * ''ρ_h'' = density of hydrocarbon, g/cm³
  3 KB (488 words) - 16:13, 31 March 2022
• Hydrodynamic traps: mapping
  ...ynamic traps. Combining formation fluid pressures with other data, such as density and subsea elevation, produces maps that help outline areas where hydrodyna #*Note: Use gas density where gas is expected and oil density where oil is expected.
  4 KB (601 words) - 22:27, 17 February 2022
• Hydrofractured seal leakage
  ...static pressure gradient is estimated from [[Basic_open_hole_tools#Density|density logs]] or [[porosity]] trend. * Petroleum density is estimated from the gas-oil ratio (GOR), [[API gravity]], temperature, an
  5 KB (679 words) - 17:11, 1 February 2022
• Fluid-composition trap regime
  ...bility]], [[Wikipedia:Miscibility|immiscibility]], and [[Wikipedia:Density|density]] contrasts between [[hydrocarbon]]s and water are major factors that allow
  3 KB (402 words) - 16:31, 13 April 2022
• Synthetic seismogram
  Velocity data from the sonic log (and the [[density log]], if available) are used to create a synthetic seismic trace. This tra ...ves are digitized at a sample interval of 0.5 to [[length::1 ft]]. (If the density curve is not available, the sonic alone may be used.)
  8 KB (1,199 words) - 13:57, 24 January 2022
• Formation evaluation of naturally fractured reservoirs
  ===Correction curve on the compensated density log=== The Δρ (delta rho) curve corrects the [[Basic open hole tools#Density|density log]] for the effect of rough borehole and mud cake. As such, the correctio
  9 KB (1,380 words) - 17:25, 18 January 2022
• Seismic data display
  In exploration seismology, reflections are recorded from velocity or density contrasts in the rock sequence. By SEG convention, an increase in velocity, ...trace, (b) variable area, (c) variable area wiggle trace, and (d) variable density. Copyright: Conoco Inc.]]
  9 KB (1,404 words) - 21:17, 19 January 2022
• Hydrostatic pressure gradient
  * [[Estimating formation water density]]
  2 KB (207 words) - 18:56, 16 February 2022
• Gravity data processing
  | Elevation & surface density | Detailed topography & surface density
  4 KB (519 words) - 14:16, 31 January 2022
• Factors that cause migration
  ...ity is less than that of water. This buoyancy force is proportional to the density difference and the height of the [[hydrocarbon column]]. It acts vertically ...ssure (P) decreases the buoyancy force as the hydrocarbons are buried. The density of hydrocarbons increases more rapidly than that of water as pressure incre
  6 KB (918 words) - 15:16, 14 February 2022
• Seismic data interpretation - recurring themes
  ...effect, an edge detection technique. The bigger the [[velocity]] and/or [[density]] contrast between the rocks, the stronger the edge. ...uding a [[Fluid contacts|fluid contact]], [[porosity]] variation, or shale density change.
  5 KB (739 words) - 18:51, 27 January 2022

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