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• Wellsite math
  ...ions increase knowledge of well behavior and facilitate communication with drilling personnel. Definitions of the mathematical variables and abbreviations used | MW || Mud weight || lb/gal
  21 KB (3,142 words) - 15:10, 24 January 2022
• Formation fluid pressure from drill stem tests
  ...gh ports in the tool wall and pressure gauges respond to the weight of the drilling fluid column. The tester valve is closed. ...ol and drillpipe string. Recovered volumes of oil, gas, water, or drilling mud are recorded.
  6 KB (997 words) - 17:55, 17 February 2022
• Show evaluation
  * Knowledge of drilling and wellsite activities ...ocess. Table 1 summarizes the nomenclature of gas that can result from the drilling process. The presence of these gases should not be confused with a “show.
  18 KB (2,670 words) - 18:21, 21 January 2022
• Drilling a well
  | chapter = Drilling a well ...blowout results. Scenes of oilmen dancing with glee as oil gushes over the drilling rig are for the cinema only. In reality, oil field professionals are acutel
  15 KB (2,385 words) - 15:05, 1 August 2016
• Sampling for paleontology
  ...ragments of rock cut by the drill bit and circulated to the surface by the mud system). Often, a sample of the drill cuttings is collected for each joint ...(which may prevent blowouts), and stopping points (to prevent unnecessary drilling below the objective section).
  7 KB (1,051 words) - 18:08, 24 January 2022
• Wellbore trajectory
  A ''pendulum BHA'' is probably the most often used assembly for drilling a vertical hole. A pendulum BHA is similar to a slick BHA, but contains one ...eerable bottom hole assembly, (b) Kicking off with a bent sub and straight mud motor.]]
  14 KB (2,167 words) - 20:46, 19 January 2022
• Methods for obtaining formation fluid pressures
  * Using the weight of drilling mud
  2 KB (295 words) - 17:54, 17 February 2022
• Interpreting hydrocarbon shows
  Direct indications of hydrocarbons—seen in [[drilling fluid]]s, cuttings, cores, or formation tests—may be of several types:<re ! Show type || Core or cuttings || Mud log || Sw% || Log analysis || Dst || [[Wireline formation testers|Repeat fo
  8 KB (1,130 words) - 17:09, 5 April 2022
• Wellsite safety
  ...ng aware of the surroundings and planning accordingly. Before entering the drilling site, ask yourself the following questions: A drilling site is equipped with various safety features, including
  9 KB (1,411 words) - 15:10, 24 January 2022
• FWhitehurst sandbox
  * blowout Wikipedia:Blowout (well drilling) * bridge (drilling) http://www.glossary.oilfield.slb.com/en/Terms/b/bridge.aspx
  22 KB (3,024 words) - 21:42, 19 December 2014
• Water resistivity determination
  ..., as formation water samples, if available, are invariably contaminated by mud filtrate. ''R''_w is therefore usually calculated, and there are ...meable zones containing a more saline interstitial water than the drilling mud (''R''_w R_mf).
  13 KB (2,077 words) - 17:26, 18 January 2022
• Pinedale field
  ...helped to release the gas trapped in the Lance Pool. Finally, high-density drilling, as dense as one well for five acres, has allowed for significantly improve ...ars) for wells drilled by QEP in Pinedale field. With improved drill bits, mud systems, and crew efficiency, drill times decreased by more than 80% betwee
  16 KB (2,521 words) - 17:13, 29 January 2016
• Types of wells
  ...in the efforts to drain a specific configuration of hydrocarbons. Various drilling strategies can be adopted to place wells in specific patterns with the aim ...g the planned direction for the well.<ref>Inglis, T. A., 1987, Directional drilling: London, Graham amp Trotman, 260 p.</ref>
  22 KB (3,567 words) - 17:20, 11 March 2019
• Shale tectonics
  ...intrusive injectites or [[diapir]]s or as extrusive eruptive sand blows or mud volcanoes has captured the public's imagination and given scientists the im ...these strata can be found as well as documentation on drilling into mobile mud-cored anticlinal features (diapirs) in southern Trinidad.
  17 KB (2,466 words) - 16:16, 10 January 2024
• Overview of routine core analysis
  ...e different from that under reservoir conditions. These changes are due to drilling processes, gas expansion, and handling errors.<ref name=pt05r22>Bass, D. M. ...when large solution voids are present or when the core is badly invaded by mud solids.
  14 KB (2,121 words) - 21:16, 19 January 2022
• Fishing
  ...gue, H₂S embrittlement, differential sticking, and overstressed drilling assembly, causing a twist-off. ...ude a catching tool, bumper jar, oil jar, drill collars, and drill string. Drilling jars (specially strengthened jars) are commonly run in the drill string in
  8 KB (1,156 words) - 21:19, 19 January 2022
• Haynesville and Bossier Shales (Upper Jurassic), East Texas and Northwest Louisiana
  ...Reservoir depth ranges from 9,000 to 14,000 ft (3000–4700 m), and lateral drilling distances range between 4,600-10,000’ using slick water fluid, 30000-4000 ...ion, as well as huge development inventory from existing locations and pad drilling (Figs. 2, 3). One of the advantages of the Haynesville shale gas is that it
  4 KB (628 words) - 23:05, 3 March 2022
• Well types
  [[File:PinedaleFieldLandRig.png|thumb|400px|Drilling rig in Pinedale field with the Wind River Mountains, Wyoming, USA in the ba ...the efforts to drain a specific configuration of [[hydrocarbon]]s. Various drilling strategies can be adopted to place wells in specific patterns with the aim
  24 KB (3,753 words) - 19:33, 3 March 2016
• Taphonomy and provenance
  * Recognizing contamination by drilling mud or [[caving]]s
  3 KB (449 words) - 18:12, 31 January 2022
• Open hole tools
  ..._w , and indicate [[permeability]] || Does not work in oil-based mud and ''R''_mf and ''R''_w must contrast ...Identify lithology and well-to-well correlation || Does not work in barite mud, is a pad device, and uses a radioactive source
  23 KB (3,350 words) - 17:26, 18 January 2022

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