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• Porosity
  ...ied total porosity (see Effective porosity below). Total porosity from a [[density log]] would equate with the disaggregated oven-dried total porosity from [[ | Grain density readily determined
  24 KB (3,450 words) - 19:09, 20 January 2022
• Gravity applications: examples
  ..., sand, and river deposits. However, the subbasins, because they are lower density than cratonic [[basement]], can be identified in the gravity data as large
  6 KB (915 words) - 15:10, 31 January 2022
• Subduction zone
  ...se of subducting slab beside compression is density. [[Crust]] with higher density tends to move inside the Earth. According to the types of involved crust, s ...oves away from the ridge, conductive cooling turns the crust to be denser. Density of oceanic crust varies laterally, increasing from the ridge axis to the tr
  27 KB (4,033 words) - 20:52, 27 March 2019
• Structural geology
  ...load of the overlying sediments and the high mobility of the lowermost low density layer. ...forces of the growth faults are the deferential sediments load and the low density layers - evaporites or over-pressured shale - that are formed during or rig
  14 KB (2,168 words) - 21:31, 13 March 2019
• Drilling a well
  ...ixing in with the lighter oil as it flows to the surface will increase the density of flowing fluids within the tubing, and the production rate will fall. The ...ellbore and then through valves in the production tubing. This reduces the density of the producing fluid column and increases the flow rate. The gas will exp
  15 KB (2,385 words) - 15:05, 1 August 2016
• Reducing exploration risk
  In a petroleum province, drilling density usually indicates how intensively an area has been explored. Though this is
  8 KB (1,240 words) - 20:43, 25 January 2022
• Dip-leaking fault
  ...ge. Other possible controls in some basins include asymmetric [[fracture]] density and/or preferential hydraulic fracturing in the hanging wall.<ref name=ch10
  8 KB (1,130 words) - 17:14, 28 March 2022
• Measurement while drilling
  ...MWD tool provide a larger number of samples per foot. The increased sample density often results in better resolution of thin beds, particularly with electrom
  8 KB (1,083 words) - 21:18, 19 January 2022
• Shale tectonics
  ...cientists. Salt is known to extrude and flow as a result of differences in density of the material and surrounding sediments. However, movement of fine-graine ...81.2–2590.8 m/s) with very little increase in velocity with depth; (2) low density, estimated to be in the range of 2.1–2.3 g/cm³; (3) low resist
  17 KB (2,466 words) - 16:16, 10 January 2024
• China Shale Gas & Liquids - Sichuan Basin
  ...rized by high gamma ray (GR), high uranium (U), high acoustic (AC) and low density (DEN) (Fig. 3). Moreover, the gas-producing shale interval has high brittle
  7 KB (985 words) - 18:54, 4 December 2023
• Structural play geology
  | Density contrast Differential loading | Density contrast Differential loading
  18 KB (2,422 words) - 14:21, 2 February 2022
• Wellsite math
  * The density of the liquid (mud weight) ...he drill string, where to spot oil when the drill string is stuck, and the density of the intruding kick fluid.
  21 KB (3,142 words) - 15:10, 24 January 2022
• Plate tectonics and basin formation
  ...The subduction plate may also increase its density while it sinks, as low-density materials such as water are lost and as plate minerals collapse into denser
  24 KB (3,689 words) - 17:46, 18 April 2019
• Cross-well electromagnetic tomography monitoring of fluid distribution
  The receiver magnetic flux density is obtained by the following equation: | H_z || Magnetic flux density in the z-direction || Tesla (T) || kg.s^-2.A^-1
  18 KB (2,715 words) - 18:29, 8 February 2024
• Core alteration and preservation
  | Low-density polyethylene || 500 || 1.0 || 1900 | High-density polyethylene || 200 || 0.4 || 500
  20 KB (2,971 words) - 15:46, 19 January 2022
• Lithofacies and environmental analysis of clastic depositional systems
  | Porosity, [[Quick-look lithology from logs|lithology]] (with sonic, density) | [[Basic open hole tools#Density|Density]] log
  38 KB (5,198 words) - 22:11, 15 January 2024
• Full waveform acoustic logging
  ...rement of formation shear wave velocity. Together with P wave velocity and density, one can obtain the shear modulus and compressibility of the formation, whi
  10 KB (1,530 words) - 20:47, 19 January 2022
• Tight gas reservoirs: evaluation
  ...ermeability gas reservoirs, crossover of the compensated neutron-formation density logs is the most reliable well log for indicating gas-saturated and porous
  11 KB (1,444 words) - 21:26, 4 January 2024
• China Shale Gas & Liquids - Bohai Bay Basin
  ...sphaltenes (in average 39.7% and 11.2%, respectively), and therefore, high density and viscosity (~57.7 mPa·s) (Figure 5), e.g., poor mobility. In addition,
  8 KB (1,251 words) - 15:51, 14 March 2022
• Magnetics
  | Horizontal density variations
  10 KB (1,481 words) - 15:39, 24 January 2022

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