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Production > Production > Flashcards

Production Flashcards

1
Q

A device used in a hydraulic system to store energy or, in some applications, dampenpressurefluctuations.

A

accumulator

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2
Q

An extension added to a short face-to-face valve to conform to standardAPI 6D(or ISO 14313: 1999) face-to-face dimensions.

A

adapter spool

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3
Q

As it pertains to a valve construction, a valve body that is completely welded and cannot be disassembled and repaired in the field.

A

all-welded construction

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4
Q

A pin welded to the body of a ball valve.

A

anchor pin

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5
Q

A variation of the globe valve in which the end connections are at right angles to each other, rather than being in line.

A

angle valve

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6
Q

API 6D specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, gate and plug valves for application in pipeline systems.

A

API 6D: Specification of Pipeline Valves

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7
Q

A professional association that was founded in 1880. It “promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe” via “continuing education, training and professional development, codes and standards, research, conferences and publications, government relations, and other forms of outreach.”

A

American Society of Mechanical Engineers (ASME)

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8
Q

Pressure opposing the desired flow of a fluid in a pipe.

A

back pressure

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9
Q

A valve using a spherical closure element (ball) which is rotated through 90° to open and close the valve.

A

ball valve

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10
Q

A gate valve actuated by means of a set of bevel gears having the axis of the pinion gear at right angles to that of the larger ring gear.

A

bevel gear operated (BGO) valve

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11
Q

A valve that isolates or blocks possible leaks in case of an emergency situation.

A

block valve

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12
Q

The capability of obtaining a seal across the upstream and downstream seat rings of a valve when the body pressure is bled off to the atmosphere through blowdown valves or vent plugs. Useful in testing the integrity of seat seals and performing minor repairs under pressure.

A

block-and-bleed

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13
Q

A valve or system of valves that, when activated, initiates a blowdown of a pipeline, plant, process or platform; similar to an emergency shutdown valve (ESDV) that shuts

A

blowdown valve (BDV)

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14
Q

An optional relief valve installed on ball valves used in liquid service to provide for the relief of excess body pressure caused by thermal expansion.

A

body relief valve (BRV)

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15
Q

The top part of a valve, attached to the body that guides the stem and adapts to extensions or operators.

A

bonnet

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16
Q

A phrase describing the sealing ability of a valve.

A

bubble-tight shutoff

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17
Q

A short face-to-face valve that has a movable vane in the center of the flow stream, which rotates 90° as the butterfly valve opens and closes.

A

butterfly valve

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18
Q

A system of pipes and valves permitting the diversion of flow or pressure around a line valve.

A

bypass

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19
Q

The number of gallons of water per minute that will flow through a valve with a pressure drop of 1 psi.

A

capacity factor (of a valve), Cv, Kv

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20
Q

The rapid formation and collapse of vapor pockets in a flowing liquid in localized regions of very low pressure.

A

cavitation

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21
Q

A mechanical impact test conducted on a precisely machined coupon of the steel to be tested.

A

charpy test

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22
Q

A one-directional valve that is opened by the fluid flow in one direction and closes automatically when the flow stops or reverses direction.

A

check valve

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23
Q

The metering and pressure-reducing station where gas is transferred from a high-pressure cross-country transmission line to a low-pressure distribution piping system, usually within a city.

A

city gate

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24
Q

A U-shaped connector used to loosely join parts by means of a bolt or pin passing through the ends of the connector.

A

clevis

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25
Q

The process of converting coal to a form of synthetic natural gas.

A

coal gasification

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26
Q

A valve that controls a process variable, such as pressure, flow or temperature, by modulating its opening in response to a signal from a controller.

A

control valve

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27
Q

A device that measures a controlled variable, compares it with a predetermined setting and signals an actuator to readjust the opening of a valve in order to re-establish the original control setting

A

controller

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28
Q

A power-piston valve operator that converts hydraulic or pneumatic pressure into linear motion of a valve stem (piston rod).

A

cylinder operator

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29
Q

Extending a blowdown valve (BDV) on large gate valves requires a tube that is located inside of the valve.

A

dip tube

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30
Q

A valve arrangement that ensures no flow in a line, although the valve may leak.

A

double block-and-bleed

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31
Q

A drop in outlet pressure of a regulator or control valve due to the travel of its valve or poppet as the required flow increases from low to maximum.

A

droop

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32
Q

A nondestructive examination (NDE) method for detecting the presence of surface cracks and surface imperfections in welds or castings through use of a special red dye.

A

dye penetrant inspection

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33
Q

A sealing element used between parts that have relative motion, such as stem seals and seat seal O-rings.

A

dynamic seal

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34
Q

A valve or a system of valves that, when activated, initiate a shutdown of the plant, process or platform they are tied to.

A

emergency shutdown valve (ESDV)

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35
Q

A gate valve comprising a separate gate and segment that move without touching the seats as the valve operates the gate and segment.

A

expanding gate valve

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36
Q

Any device used for connecting elements in fluid lines, including elbows, tees, nipples, unions and flanges

A

fitting

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37
Q

A formed pipe fitting consisting of a projecting radial collar with bolt holes to provide a means of attachment to piping components having a similar fitting.

A

flange

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38
Q

The number of gallons of water per minute that will flow through a valve with a pressure drop of 1 psi

A

flow coefficient, Cv

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39
Q

The tearing of metal when two elements rub against each other.

A

galling

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40
Q

The ratio of the gas volumetric flow rate to the total volumetric flow rate of all fluids.

A

gas volume fraction (GVF)

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41
Q

The ratio of produced gas volume to total produced liquids (oil and water) volume

A

gas/liquid ratio (GLR)

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42
Q

The ratio of the volume of gas that comes out of solution to the volume of oil at standard conditions.

A

gas/oil ratio (GOR)

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43
Q

A straight-through pattern valve whose closure element is a wedge or parallel-sided slab, situated between two fixed seating surfaces with means to move it in or out of the flow stream in a direction perpendicular to the pipeline axis.

A

gate valve

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44
Q

A valve part that retains or compresses the stem packing in a stuffing box (where used) or retains a stem O-ring, lip seal or stem O-ring bushing.

A

gland bushing

45
Q

A valve whose closure element is a flat disc or conical plug sealing on a seat that is usually parallel to the flow axis

A

globe valve

46
Q

A new oil and gas field development.

A

greenfield

47
Q

A means of supporting the weight of a cable or other connection.

A

hangoff

48
Q

A metalworking process where harder or tougher material is applied to a weaker base metal.

A

hardfacing

49
Q

A device used in a hydraulic system to store energy or, in some applications, dampen pressure fluctuations.

A

hydraulic power unit (HPU)

50
Q

The inner part of a two-piece valve seat assembly.

A

inner seat ring

51
Q

A pressure test that can be performed only on a trunnion mounted ball valve with double piston effect seats.

A

inside-out air seat test

52
Q

A method of restricting the travel of a ball valve from fully open to fully closed.

A

key stop

53
Q

The flow of a viscous fluid in which the fluid moves in parallel layers with a fixed velocity gradient from the centerline to the containing walls of the conduit.

A

laminar flow

54
Q

A circular seal ring of U-shaped cross section encompassing an elastomeric O-ring, which provides resiliency and ensures a seal at the inner and outer lips of the U.

A

lip seal

55
Q

A nondestructive inspection procedure for detecting surface cracks in welded areas through the use of fine iron particles in an electrical field.

A

magnetic particle inspection (MPI)

56
Q

A common pipe or chamber having several lateral outlets.

A

manifold

57
Q

The maximum pressure at which a valve can be operated.

A

maximum working pressure (MWP)

58
Q

The seal produced by metal-to-metal contact between the sealing face of the seat ring and the closure elements, without benefit of a synthetic sea

A

metal-to-metal seal

59
Q

A pad with multiple wells.

A

multiwell pad

60
Q

A type of small valve used for flow metering, having a tapered needlepoint plug or closure element and a seat having a small orifice

A

needle valve

61
Q

Any short piece of pipe, especially if threaded at both ends with male threads.

A

nipple

62
Q

Inspection tests that are not destructive to the valve structure or function.

A

nondestructive examination (NDE)

63
Q

A gate valve having its stem threaded into the gate.

A

nonrising stem

64
Q

The deformable sealing material inserted into a valve stem stuffing box, which provides a tight seal about the stem when compressed by a gland.

A

packing

65
Q

A temporary drilling site, usually constructed of local materials such as gravel, shell or even wood.

A

pad

66
Q

A fluid used to initiate hydraulic fracturing that does not contain proppant.

A

pad

67
Q

When daily usage of natural gas is charted on graphs, high peaks of usage during the winter and summer months can be detected

A

peak shaving

68
Q

A regulator that is controlled by a second small-volume, high-accuracy regulator or pilot.

A

pilot-operated regulator

69
Q

The external input shaft of certain gear operators, which drives the internal reduction gearing.

A

pinion shaft

70
Q

The sealing principle involved in utilizing line pressure to effect a seal across the floating seats of some valves.

A

piston effect

71
Q

Pertaining to screw threads, the pitch refers to the measurement between adjacent threads

A

pitch-and-lead

72
Q

A quarter-turn valve whose closure element is usually a tapered plug having a rectangular port.

A

plug valve

73
Q

A Christmas tree that is installed once fracturing has been completed and the frac tree has been removed.

A

production tree

74
Q

A nondestructive evaluation (NDE) procedure that uses X-rays for locating flaws in welds, casting and fabricated parts.

A

radiographic inspection

75
Q

A quick-acting, spring-loaded valve that opens to relieve pressure when the pressure exceeds the spring setting.

A

relief valve

76
Q

A valve stem that rises as the valve is opened.

A

rising stem

77
Q

A concrete or metal box with a removable cover, enclosing and providing access to valves installed in buried lines alongside roads or streets

A

road box

78
Q

A numerical expression of the hardness of a metal as determined with a Rockwell Hardness Tester.

A

rockwell hardness number

79
Q

Rockwell hardness testing is a testing method that uses a conical diamond or a steel ball to indent the surface of metals or polymers.

A

rockwell hardness testing

80
Q

A quick-opening, pop-action valve used for fast relief of excessive pressure.

A

safety valve

81
Q

A system for indicating the wall thickness of pipe.

A

schedule

82
Q

A slotted link mechanism that works as the quarter-turn operator for use on quarter-turn valves in place of gears

A

scotch yoke

83
Q

That part of a valve against which the closure element (gate, ball) affects a tight shutoff.

A

seat

84
Q

A valve designed only for on and off service. Not a throttling valve. Sometimes referred to as a block valve.

A

shutoff valve

85
Q

A device to prevent the clapper of a check valve from slamming as it closes upon flow reversal.

A

slam retarder

86
Q

An application involving a flowing medium consisting of small solid particles suspended in a liquid.

A

slurry service

87
Q

A sealing element used as a gasket between two nonmoving parts, for example, valve bonnet O-rings, ball valve body O-rings and flange gaskets

A

static seal

88
Q

A rod or shaft transmitting motion from an operator to the closure element of a valve.

A

stem

89
Q

A position-indicating rod supplied with gate valves.

A

stem indicator / visible position indicator

90
Q

A procedure used in the repair of a pipeline to isolate a section of line in the absence of a shutoff valve.

A

stopple

91
Q

The annular chamber provided around a valve stem in a sealing system into which deformable packing is introduced.

A

stuffing box

92
Q

A valve used underwater, generally in a manifold that will close and isolate a particular pipeline or process in an emergency.

A

subsea isolation valve

93
Q

The transient sudden rise or fall of pressure in a pipeline.

A

surge

94
Q

A valve designed to relieve pressure surges in pipelines carrying liquids, thus preventing line rupture due to transient pressures exceeding design limits of the pipe

A

surge reliever

95
Q

A tool for bending or forming cold metal to a required shape.

A

swage

96
Q

A check valve in which the closure element is a hinged clapper that swings or rotates about a supporting shaft.

A

swing check valve

97
Q

A flange consisting of two parts—a hub and a ring.

A

swivel flange

98
Q

The intentional restriction of flow by partially closing or opening a valve

A

throttling

99
Q

An expression characterizing valves when in the open position, wherein the bore presents a smooth uninterrupted interior surface across seat rings and through the valve port, thus affording minimum pressure drop.

A

through-conduit

100
Q

The design of a particular valve or regulator where the unit can be serviced or repaired by leaving its body in the line and accessing its internals by removing a top portion of the unit.

A

top entry

101
Q

The part of a ball valve that holds the ball on a fixed vertical axis and about which the ball turns.

A

trunnion

102
Q

The random flow of a fluid in which the velocity at a certain point in the fluid varies irregularly.

A

turbulent flow

103
Q

A nondestructive evaluation (NDE) inspection procedure that uses high-frequency sound waves to detect voids and imperfections of metal parts.

A

ultrasonic inspection

104
Q

A small variable profile valve put in a flowline and used with a pilot to restrict the flow into the pilot and make the pilot more or less sensitive to changing conditions.

A

variable orifice

105
Q

A special pipe plug having a small Allen-wrench-operated vent valve.

A

vent plug

106
Q

A venturi valve is a reduced-bore valve having a bore smaller in diameter than the inlet or outlet.

A

venturi valve

107
Q

The physical effect, often accompanied by loud banging, produced by pressure waves generated by a rapid change of velocity in a liquid system within piping.

A

water hammer

108
Q

A gate whose seating surfaces are inclined to the direction of closing thrust so that mechanical force on the stem produces tight contact with the inclined seat rings.

A

wedge gate

109
Q

The part of a gate valve that serves as a spacer between the bonnet and the operator or actuator.

A

yoke

Production (9 decks)

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