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• Offshore rigs
  ...ge surface area of the lower hull keeps the rig from sinking into the soft mud and provides a stable drilling platform. ...ed to the rig by a riser to allow circulation of [[Drilling fluid|drilling mud]].
  7 KB (1,016 words) - 16:56, 20 January 2022
• Carbonate diagenesis
  ...textures tend to have larger pore sizes than do [[Mud-supported carbonate|mud-supported]] textures. The textures have different geometries in different [ ...ion_fig2.png|Figure 2]]) is dominated by low-energy waters that allow lime mud to accumulate. [[Storm deposits and currents|Storms]], however, churn the s
  23 KB (3,026 words) - 20:48, 19 January 2022
• Pressure prediction: reconstructing burial history
  * [[Pressure prediction: analysis of mud weights]]
  3 KB (408 words) - 17:56, 17 February 2022
• Drilling a well
  ...it fails in this last action, the fluid in the formation will displace the mud up the hole. This is called a kick. Should this hazardous situation not be ...d of the drill pipe, rotates, cutting and crushing the rock underneath it. Mud passes out through the nozzles in the drill bit, cools the bit, and acts to
  15 KB (2,385 words) - 15:05, 1 August 2016
• Natural hydraulic fracturing example, North Sea
  ...eal (approximately [[depth::1300 ft]]). The pore pressure is inferred from mud weight and [[Wireline formation testers|repeat formation tester]] (RFT) mea
  3 KB (430 words) - 19:46, 30 March 2022
• Wellbore trajectory
  ...eerable bottom hole assembly, (b) Kicking off with a bent sub and straight mud motor.]] ...ck out of casing by milling a “window” and deflecting the wellbore using a mud motor.
  14 KB (2,167 words) - 20:46, 19 January 2022
• FWhitehurst sandbox
  * mud (drilling mud) http://www.glossary.oilfield.slb.com/en/Terms/m/mud.aspx * oil-based mud [[Drilling_fluid#Oil-based_muds|
  22 KB (3,024 words) - 21:42, 19 December 2014
• Critical elements application: Niobrara example
  * Drilling must be conducted with [[Analysis of mud weights|underbalanced mud]] or air to prevent fracture damage. The Niobrara is an [[Causes of underpr
  7 KB (962 words) - 16:03, 18 February 2022
• Production testing
  ...w valves, and one or two packers. The tool isolates the formation from the mud column in the annulus. When the tool is opened, reservoir fluid can flow in ...tem above the pressure gauges. The objective is to release the hydrostatic mud pressure and draw down the formation pressure only slightly. The first shut
  14 KB (2,165 words) - 18:42, 20 January 2022
• Density-neutron log porosity
  ...orehole—usually mud filtrate (use 1.0 for freshwater and 1.1 for saltwater mud) ...tbook. Use the appropriate crossplot for the log type (i.e., SNP, CNL) and mud type (fresh or salt).
  12 KB (1,763 words) - 16:18, 5 April 2022
• Wellsite safety
  ...t be expected to break out or accumulate (e.g., bell nipple, shale shaker, mud mixer, and rig floor). ...pical confined spaces at a wellsite include the rig cellar, mud tanks, and mud pits.
  9 KB (1,411 words) - 15:10, 24 January 2022
• Taphonomy and provenance
  * Recognizing contamination by drilling mud or [[caving]]s
  3 KB (449 words) - 18:12, 31 January 2022
• Log interpretation: initial quick scan
  ...l stem tests]], [[Show evaluation|sample shows]], [[Mudlogging: the mudlog|mud-log analysis]], nearby production, etc., before making a decision to set pi
  4 KB (543 words) - 14:11, 21 August 2014
• Overview of routine core analysis
  ...when large solution voids are present or when the core is badly invaded by mud solids. ...thod is available to address the permeability reduction caused by drilling mud fines that have penetrated the pore system. These fines may cause whole cor
  14 KB (2,121 words) - 21:16, 19 January 2022
• Depositional trap regime
  ...platform reefs, atoll reefs, patch reefs, pinnacle reefs, reef mounds (or mud mounts), and carbonate banks.<ref name=JG1984 /> These terms can be used as | colspan = 5 | ''Mud mounds''; Depositional carbonate mounds consisting largely of clean lime [[
  10 KB (1,231 words) - 20:28, 4 January 2024
• Identifying depositional sequences from biostratigraphic data
  ...al at the sea floor that is part of the regionally extensive transgressive mud of the [[Holocene]]. The arrow on the seismic section, shown on Figure 4-19 ...on of abundant ''G. menardii'' with the regionally extensive transgressive mud of the Holocene provides local confirmation of the warm-water interglacial
  9 KB (1,143 words) - 14:57, 23 February 2022
• Drill stem testing
  ...xcessive damage by [[drilling fluid]]s and should be used in designing the mud program. The anticipated reservoir properties are used to design the test s The length of the test interval should be short so that less mud will be displaced from the rathole (the portion of the open hole below the
  26 KB (4,009 words) - 15:09, 24 January 2022
• Depositional environments
  ...teristics are the structure of stratified fine sands overlain by laminated mud. ...fluvial deposits are, they consist of sand and gravel grain size and also mud in floodplain deposits of meandering systems, and they have moderate to poo
  26 KB (3,851 words) - 20:38, 28 February 2019
• Core alteration and preservation
  During core acquisition and retrieval, the mud filtrate often invades the core. Invasion can displace over half of the nat ...y, pressure differential and relative permeability of the formation to the mud filtrate, and core diameter.<ref name=Basan_etal_1988 />
  20 KB (2,971 words) - 15:46, 19 January 2022
• Meandering fluvial reservoirs
  ...edded within varying volumes of mud ([[:file:M91FG173.JPG|Figure 2]]). The mud can make up 50% or more of the volume. Channel features, where they survive ...croform]]s found in meander belts include point bars, crevasse splays, and mud-rich channel plugs within a background of floodplain muds. [[Coal]]s are fo
  32 KB (4,727 words) - 21:03, 15 January 2024

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