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Procedure used in oil well drilling
Measurement while drilling (MWD) refers to directional-drilling measurements (e.g., for decision support for the wellbore path). Initial attempts to provide
Measurement_while_drilling
Procedure used on oil wells
Logging while drilling (LWD) is a technique that allows log data to be acquired during drilling operations through tools placed in the bottom hole assembly
Logging_while_drilling
Practice of drilling non-vertical bores
Directional drilling (or slant drilling) is the practice of drilling non-vertical bores. It can be broken down into four main groups: oilfield directional
Directional_drilling
Creation of a detailed record of a borehole
drilling and the time required for the mud and cuttings to return to the surface, a modern augmentation has come into use: Measurement while drilling
Mud_logging
Subset of petroleum engineering
Drilling engineering is a subset of petroleum engineering. Drilling engineers design and implement procedures to drill wells as safely and economically
Drilling_engineering
Aid for drilling boreholes into the ground
engineering, drilling fluid, also known as drilling mud or drilling slurry, is used to aid the drilling of boreholes into the earth. Used while drilling oil and
Drilling_fluid
survey, is the measurement of a borehole's departure from the vertical, expressed in degrees (°). When a well plan dictates the drilling of a straight
Deviation_survey
depth recorded while drilling an oil or gas well is known as the driller's depth. Since there is not a single reference or measurement system for calculating
Driller's_depth
motors. They are generally programmed by the measurement while drilling (MWD) engineer or directional driller who transmits commands using surface equipment
Rotary_steerable_system
Well drilling technique
Underbalanced drilling (UBD) is a procedure used to drill oil and gas wells where the pressure in the wellbore is kept lower than the static pressure
Underbalanced_drilling
Drill pipe that transmits drilling fluid
downhole motor and rotary steerable system (RSS), measurement while drilling (MWD), and logging while drilling (LWD) tools. The components are joined using
Drill_string
000 pounds force on the bit (in a vertical hole). Some downhole Measurement While Drilling (MWD) sensors can measure weight-on-bit more accurately and transmit
Weight_on_bit
Drilling rig component
planned trajectory and to also include whatever Logging While Drilling (LWD) / Measurement While Drilling (MWD) tools for formation evaluation. As such BHA
Bottom_hole_assembly
Drilling term
tripping of pipe. Downhole tools such as MWD (measurement while drilling), LWD (logging while drilling) or mud motors break down quite often. Another
Tripping_(pipe)
Hard, high-strength copper alloy
less expensive and have similar properties. Measurement-while-drilling (MWD) tools in the directional drilling industry. A non-magnetic alloy is required
Beryllium_copper
magnetic resonance Nuclear magnetic resonance in porous media Logging while drilling SNMR Gluyas, J. & Swarbrick, R. (2004) Petroleum Geoscience. Publ. Blackwell
Nuclear magnetic resonance logging
Nuclear_magnetic_resonance_logging
Piping used on drilling rigs
A drill pipe is a hollow, thin-walled, steel or aluminium alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped
Drill_pipe
Kind of motor used in drilling
motor internals. Logging while drilling (LWD) Measurement while drilling (MWD) Baker Hughes Incorporated (1998). Navi-Drill Motor Handbook. Baker Hughes
Mud_motor
Method of drilling through ice
and rotary drilling, a method often used in mineral exploration for rock drilling. In the 1940s, thermal drills began to be used; these drills melt the
Ice_drilling
Automatic collection and transmission of data
transmit drilling mechanics and formation evaluation information uphole, in real time, as a well is drilled. These services are known as Measurement while drilling
Telemetry
Well logging tool
with an independent acoustic measurement of the borehole drilling fluid velocity, but the range of this type of measurement is often limited by the high
Caliper_log
Detailed record of borehole contents
information at the surface. This is known as logging while drilling (LWD) or measurement-while-drilling (MWD). MWD logs use mud pulse technology to transmit
Well_logging
and sells a broadband networked drilling string system used to transmit downhole information to the surface in a drilling operation. The IntelliServ network
IntelliServ
minimum volume commitment MW – mud weight MWD – measurement while drilling MWDRE – measurement while drilling report MWP – maximum working pressure MWS –
List of abbreviations in oil and gas exploration and production
List_of_abbreviations_in_oil_and_gas_exploration_and_production
Test in American football
preparation for the NFL draft but is also an important measurement for collegiate recruiting. While not as highly regarded a test as the 40-yard dash, it
Three-cone_drill
Topics referred to by the same term
Digital, an American visual effects company Measurement while drilling, a procedure used in oil well drilling Metropolitan Water District of Southern California
MWD
Canadian-American engineer, inventor, and glider pilot
a measurement while drilling tool as a seismic source U.S. patent 5,901,113 – Inverse vertical seismic profiling using a measurement while drilling tool
Peter_Masak
detector, but this configuration is susceptible to the effects of the drilling fluid. In a similar way to how the sonic logging tool was improved to compensate
Density_logging
Technology used in oil and gas wells
lines of wire. Different from measurement while drilling (MWD) and mud logs, wireline logs are constant downhole measurements sent through the electrical
Wireline_(cabling)
American energy technology company
and manufacturing team introduced the Navi-Drill line of downhole drilling motors, which has led the drilling industry in performance and reliability for
Baker_Hughes
Branch of space physics and aeronomy
expensive, since it can stop drilling for hours. An alternative is to use a magnetic survey, which enables measurement while drilling (MWD). Near real-time magnetic
Space_weather
Drilling component
(sometimes called a drilling mud pump) is a reciprocating piston or plunger pump used to circulate drilling fluid under high pressure down a drill string and back
Mud_pump
variations in the drilling mud thickness, there are actually two receivers, one near and one far. This is because the travel time within the drilling mud will
Sonic_logging
formations Resistivity and make up of the drilling mud Wellbore diameter The depth of invasion by the drilling mud into the formation Mud invasion into
Spontaneous_potential_logging
Material which glows when excited by ionizing radiation
important for applications such as oil exploration (wireline logging, measurement while drilling). For most scintillators, light output and scintillation decay
Scintillator
including performance motors, measurement-while-drilling (MWD) tools, rotary steerable systems (RSS), and gyro-while-drilling (GWD) tools, the latter of
Gyrodata
Stresses which remain in a solid material after the original cause is removed
Centre hole drilling is appropriate for up to 4 mm in depth. Alternatively, blind hole drilling can be used for thin parts. Center hole drilling can also
Residual_stress
Former American energy holding company
oilfield services business. Teleco provided measurement-while-drilling services to the offshore drilling industry through a system it had developed where
Sonat
Narrow shaft bored in the ground
drilling process: "The Chinese method of deep drilling was accomplished by a team of men jumping on and off a beam to impact the drilling bit while the
Borehole
Uncontrolled release of crude oil and/or natural gas from a well
During that era, the simple drilling techniques, such as cable-tool drilling, and the lack of blowout preventers meant that drillers could not control high-pressure
Blowout_(well_drilling)
Method of identifying layers of rock in a borehole
its porosity Drilling mud – Aid for drilling boreholes into the ground Formation evaluation – Production assessment of boreholes drilled for oil or gas
Resistivity_logging
sediment in a borehole or drill hole. It is a wireline logging method used in mining, mineral exploration, water-well drilling, for formation evaluation
Gamma_ray_logging
Quantification of bulk fluid movement
Flow measurement is the quantification of bulk fluid movement. Flow can be measured using devices called flowmeters in various ways. Volumetric flow meters
Flow_measurement
Marine research program (2003–2013)
Integrated Ocean Drilling Program (IODP) was an international marine research program running from 2003 to 2013. The program used heavy drilling equipment mounted
Integrated Ocean Drilling Program
Integrated_Ocean_Drilling_Program
Testing Water-Based Drilling Fluids, Dallas: American Petroleum Institute, 1990 A. W. McCray & F. W. Cole (1979) Oil Well Drilling Technology University
Marsh_funnel
Town in Saskatchewan, Canada
the first horizontal well was drilled in the area by the directional driller Ryan Oliver and measurement while drilling was done by Kent Ruether. This
Nokomis,_Saskatchewan
Technique for optimal borehole placement
While the borehole is being drilled according to the well plan, new geological information is gathered from mud logging, measurement while drilling (MWD)
Geosteering
Concept in petrophysics
dimensional petrophysical term used by drilling engineers and mud engineers during the design of drilling programs for drilling (constructing) oil and gas wells
Pore_pressure_gradient
obtained using Knudsen correction. When using nitrogen gas for core plug measurements, the Klinkenberg correction is usually necessary due to the so-called
Klinkenberg_correction
Well drilled to extract crude oil and/or gas
rotary drilling, which could drill boreholes to much greater depths and in less time. The record-depth Kola Borehole used a mud motor while drilling to achieve
Oil_well
Attempt to drill through Earth's crust
1966. By then, a program of sediment drilling had branched from Project Mohole to become the Deep Sea Drilling Project. During discussions at the end
Project_Mohole
Concept in oil and gas exploration
than the drillers depth. The differences between loggers and drillers depths are due to different stretch in the drilling string when drilling, and the
Depth_in_a_well
Cylindrical section of (usually) a naturally-occurring substance
are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made
Core_sample
Offshore drilling contractor
Transocean Ltd. is a Swiss offshore drilling company. It is the world's largest offshore drilling contractor based on revenue. The company has offices
Transocean
Testing of chamber pressure
requires drilling of the cartridge case before firing the proofing cartridge in a specially made test barrel. The Kistler ballistic pressure measurement sensor
Small arms ammunition pressure testing
Small_arms_ammunition_pressure_testing
History of drilling through ice sheets and glaciers
ice drilling began in 1840, when Louis Agassiz attempted to drill through the Unteraargletscher in the Alps. Rotary drills were first used to drill in
History_of_ice_drilling
Division of General Electric
The division supplied equipment for the petroleum industry, including drilling, subsea and offshore, onshore, LNG, distributed gas, oil pipeline and oil
GE_Oil_and_Gas
Production assessment of boreholes drilled for oil or gas
Essentially, it is the process of recognizing a commercial well while drilling one. Modern rotary drilling usually uses a heavy mud as a lubricant and as a means
Formation_evaluation
evaluation. Wireline (well) logs are then combined with drilling data, mud logs, and measurements while drilling (MWD) and coring information in order to choose
Wireline_QA/QC
Oilfield services company
2022, it is both the world's largest offshore drilling company and the world's largest offshore drilling contractor by revenue. Also known as SLB Limited
SLB
Chinese major national oil and gas corporation
exploration projects are carried out by the Great Wall Drilling Company (GWDC), a wholly owned drilling services company. In 2018 the company announced it
China National Petroleum Corporation
China_National_Petroleum_Corporation
Excavation or structure to provide access to groundwater
Deeper wells can be excavated by hand drilling methods or machine drilling, using a bit in a borehole. Drilled wells are usually cased with a factory-made
Well
measurement; probability of detection for ACFM is given below. In refereed (PDI'S) based on fit-for-purpose in-service; the Oil and Gas and Drilling Contractors
Alternating current field measurement
Alternating_current_field_measurement
Vibration measurement using boreholes
dome away from the drilling rig. Drill-noise VSPs (F), also known as seismic-while-drilling (SWD) VSPs, use the noise of the drill bit as the source and
Vertical_seismic_profile
Scientific expedition on 2011 earthquake
earthquake, researchers of the Integrated Ocean Drilling Program (IODP) began planning the Japan Trench Fast Drilling Project (JFAST) to investigate the earthquake
Japan Trench Fast Drilling Project
Japan_Trench_Fast_Drilling_Project
Device that measures magnetism
directional drilling for oil or gas to detect the azimuth of the drilling tools near the drill. They are most often paired with accelerometers in drilling tools
Magnetometer
Long metal pipe used in oil and gas wells
through the drilling derrick on the oil platform, which is used to support the surface equipment, although on platforms with no drilling facilities a
Coiled_tubing
Opening a safe without the combination or the key
Drill-points are often located close to the axis of the dial on the combination lock, but drilling for observation may sometimes require drilling through
Safe-cracking
Mechanical deviation from the intended axis
main axis. For example; when drilling, run-out will result in a larger hole than the drill's nominal diameter due to the drill being rotated eccentrically
Run-out
2002 rescue operation in Pennsylvania, US
Thursday evening, 10 portable hyperbaric chambers arrived at the drilling site. Drilling continued until 1:38 p.m. on July 27, when it was stopped to install
Quecreek_Mine_rescue
isi-sys optonor – optical testing and metrology Residual stress measurement based on hole-drilling and ESPI (stresstech group) Shearing ESPI for composites inspection
Electronic speckle pattern interferometry
Electronic_speckle_pattern_interferometry
Fracturing bedrock by pressurized liquid
(15–91 m). Horizontal drilling reduces surface disruptions, as fewer wells are required to access the same volume of rock. Drilling often plugs up the pore
Fracking
Quantity of water contained in a material
Wessel-Bothe, Weihermüller (2020): Field Measurement Methods in Soil Science. New practical guide to soil measurements explains the principles of operation
Water_content
Nuclear explosion in Ukraine (1972)
blowout was capped by conventional methods. In 1971 there was an accident while drilling Well Number 35, a gas rig that was part of the development of gas extraction
Operation_Fakel
American tool company
drill surrounded by four chisel blades used in making mortises (the hole) for mortise and tenon joints, for the furniture industry in Rockford. While
Greenlee
Electro-optical instrument used in surveying and building construction
an electronic transit theodolite integrated with electronic distance measurement (EDM) to measure both vertical and horizontal angles and the slope distance
Total_station
Unit of power
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are
Horsepower
Unit of energy
of gas. Husher, John Durbin (2009). Crises of the 21st Century: Start Drilling-The Year 2020 Is Coming Fast. iUniverse. p. 376. ISBN 9781440140549. OCLC 610004375
British_thermal_unit
French scientist and professor (born 1945)
(2002), Fractured Reservoirs (2003), Multilateral Wells (2004), Measurements while Drilling (2006) and Multilayered Reservoirs (2008). Co-convenor, EAGE-SPE
Alain_Gringarten
Extracting crude oil and natural gas
recovery techniques. Drilling engineers manage the technical aspects of drilling exploratory, production and injection wells. Drilling fluid engineers A
Petroleum_engineering
Danish multinational engineering and electronics company
Brüel & Kjær (Sound and Vibration Measurement A/S) is a Danish multinational engineering and electronics company headquartered in Nærum, near Copenhagen
Brüel_&_Kjær
Ship built in 1978
one of the scientific drilling ships used by the International Ocean Discovery Program (IODP), an international, multi-drilling platform research program
JOIDES_Resolution
American multinational corporation
cobblestones, and gravel and not appropriate for the kind of drilling Halliburton planned. "No driller in his right mind would have gone ahead," said Army geologist
Halliburton
Type of electronics manufacturing
Drilling is done by computer-controlled drilling machines, using a drill file or Excellon file that describes the location and size of each drilled hole
Printed circuit board manufacturing
Printed_circuit_board_manufacturing
Subspecies of Old World monkey
with black tips that lines the drill's face, while the mainland drills have a crown that is mostly white. These drills are also extremely sexually dimorphic
Bioko_drill
Mud volcano in the subdistrict of Porong, East Java, Indonesia
the Brantas PSC area by drilling a borehole named the "Banjar-Panji 1 exploration well". In the first stage of drilling, the drill string first went through
Sidoarjo_mud_flow
Barium sulfate mineral
magnetic measurements taken in the borehole, either during logging-while-drilling or in separate drill-hole logging. Baryte used for drilling petroleum
Baryte
Inorganic chemical compound
production, mostly purified mineral, is consumed as a component of oil well drilling fluid. It increases the density of the fluid, increasing the hydrostatic
Barium_sulfate
Process used to improve the accuracy of robots
robot-guided hemming in car body manufacturing, assembly of mobile phones, drilling, riveting and milling in the aerospace industry, and increasingly in medical
Robot_calibration
Series of units for volume measurement
The measurement of an "oil barrel" originated in the early Pennsylvania oil fields. The Drake Well, the first oil well in the US, was drilled in Pennsylvania
Barrel_(unit)
Amount of water an aquifer releases while staying saturated
extensometers, InSAR or levelling. Laboratory consolidation tests yield measurements of the coefficient of consolidation within the inelastic range and provide
Specific_storage
Atmospheric dust
result of many mining operations including haul roads, tailing piles, drilling, blasting, the removal of overburden and the actual mineral extraction
Fugitive_dust
Large geological fault in New Zealand
scientists drilling into the San Andreas fault?". The Guardian. ISSN 0261-3077. Retrieved 2018-12-31. "DEEP FAULT DRILLING PROJECT-2 FAQs / drill probe in
Alpine_Fault
Change in viscosity of a gel or fluid caused by stress
dry. Thixotropy is also used in drilling fluids due to their rheological makeup. This however is connected to drilling hydraulics and how thixotropy affects
Thixotropy
UAE state-owned oil company
ADNOC Drilling is ADNOC's oldest subsidiary. It was previously known as National Drilling Company, NDC. ADNOC Drilling is the largest drilling company
Abu Dhabi National Oil Company
Abu_Dhabi_National_Oil_Company
Cylindrical sample drilled from an ice sheet
agents. Rotary drilling is the main method of drilling for minerals and it has also been used for ice drilling. It uses a string of drill pipe rotated from
Ice_core
Technique for joining wood
Pocket-hole joinery, or pocket-screw joinery, involves drilling a hole at an angle — usually 15 degrees — into one work piece, and then joining it to a
Pocket-hole_joinery
Soft, brown, combustible, sedimentary rock
called amine-treated lignite (ATL), which is used in drilling mud to reduce fluid loss during drilling. Lignite may have potential uses as an industrial
Lignite
Perception of one's environment
While the SA construct has been widely researched, the multivariate nature of SA poses a considerable challenge to its quantification and measurement
Situation_awareness
Units of measurement used in Switzerland
Before the adoption of the metric system, a great variety of units of measurement was used in the area of present-day Switzerland. The Romans introduced
Swiss_units_of_measurement
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MEASUREMENT WHILE-DRILLING
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