Final Flashcards
In the field, what products are removed from natural gas to make it marketable?
Impurities, water, hydrocarbon liquids
Controlling delivery pressure of the gas may involve the use of ____ ____ ____ ____ to raise the pressure?
Pressure reducing regulators or compressors
Products are often extracted for their own value where?
at the processing plant
Some of the valuable products separated from natural gas?
Natural gasoline; Butane; Propane; Ethane; Methane
The rapid rise of the natural gas industry has depended on the new technology possible in the ______ industry
Pipeline
Each gas stream has its own composition, and that composition can change as the well continues to be produced, but the principal component is likely to be methane? T or F
True
Water Vapor is not considered an impurity in the gas stream? T or F
FALSE; Water vapor is not wanted in the gas stream
Physical properties of a gas stream are determined by analyzing the composition of pure gases in the stream. Then, the physical properties of the component gases are studied? T or F
TRUE
Absolute pressure is reported as pounds per square inch gauge (psig) T or F
FALSE; it is (psia)
Liquified petroleum gas (LPG) usually refers to propane and butane. These gases are removed from natural gas because? Letter a. Their valuables chemical plant raw feedstocks. B. They will corrode pipelines. C. They are used as gasoline blending stocks. D. They are lighter than methane
A. They are valuable as chemical plant raw feed-stocks. C. They are used as gasoline blending stocks.
Transmission and distribution systems may be damaged by all of the following: letter a. Hydrates; B. Hydrogen sulfide; C. Carbon dioxide D. Ethane
Hydrates, hydrogen sulfide and carbon dioxide BUT not ethane.
Natural gas that is produced along with crude oil
Associated Gas
Most common use for processed natural gas
Burned as a fuel
At the time of measurement, gauge pressure is the pressure above or below _____ ______
Atmospheric Pressure (14.7 psi)
Atmospheric and the gauge pressures added together
Absolute pressures
Natural gas is usually 95 to 98 percent ____
Methane
Natural gas is usually a straight-chain or cyclic which refer to the ______ _______
Molecular structure
How much should be added to gauge reading for absolute pressure to be accurate?
14.7 psi
Additive nature of partial pressures is expressed by _______ Law
Dalton’s
Convenient standard used with a standard temperature when comparing different quantities (volumes) of gas is the
Pressure Base.
The ratio of the mass of a given volume of the gas to the mass of an equal volume of air?
Specific Gravity
Gravity of a liquid in degrees API is determined by its density at what degree?
60 degree F and is independent of temperature
Absolute temperature scale based on the Fahrenheit scale?
Rankine’s scale
Zero on the Rankine’s scale is equal to ____ F?
460 degrees F
Methane chemical symbol
CH4
Methane’s molecular weight
16.043
Mass in pounds of a given element which is equal to its atomic weight is termed _______. The mass of a compound is expressed in pounds numerically equal to its molecular weight is termed _______
pound-atom; pound-mol
The critical pressure is the pressure at which the gas will liquify at its __________ __________
critical temperature
The temperature above which gas will not liquefy no matter how much pressure is applied?
Critical Temperature
The relationship between pressure, temperature, and volume of a quantity of gas
Ideal Gas Law
When hydrocarbons migrate through channels to regions of lower pressure they travel deeper into the earth. T or F
FALSE
Porosity indicates a ratio of the empty spaces in the rock to the solid spaces in the rock. T or F
True
All of the water originally contained in the pores of reservoir rock was displaced when migrating oil and gas entered the reservoir. T or F
FALSE
Indicates a ratio of the empty spaces in the rock to the salt spaces in the rock.
Porosity
Gas has a greater displacement Drive than water thus making depletion drives more effective. T or F
FALSE
Hydrocarbon pore volume may be expressed in cubic feet, barrels, or acre-feet the volume of liquid or solid required to cover one acre to a depth of 1 foot. T or F
TRUE
The effective reservoir volume of a well multiplied by the recoverable gas per acre foot results in the total recoverable gas available. T or F
TRUE
Determining Wells back pressure relationship makes it possible to analyze many operating problems and to predict future behavior. T or F
TRUE
In order for migrating petroleum to accumulate into a commercial amount, it must be stopped by a trap that is? Letter a. Permeable. B. Non-permeable C. Porous D. Sandy
Non-permeable
The empty spaces in the reservoir rock are called? A. Folds. B. Conntes. C. Pours. D. Grains.
Pores
Foretelling the future of a Gas well may depend on? A. Predicting it’s pressure decline. B. Estimating its abandonment pressure. C. Determining how much it will cost to compress the gas of the wellhead. D. All of the above
D. all of the above
Bottom hole pressure as provided by shut in wellhead pressure test can be influenced by? A. Water in the guestroom. B. Condensates at the bottom of the hole. C. Either of the above
C either of the above. Water in the gas strain; condensates at the bottom of the hole; either of the above
Gas produced from oil wells?
Associated or casing house gas
Gas produced from a reservoir not containing oil
Non-associated gas
Gas dissolved in oil
Solution gas
Gas that rises to a gas cap
Free gas
An underground, porous, permeable rock body in which oil or gas is stored?
Reservoir
Which sedimentary rocks are most common reservoir rocks?
Sandstone and Carbonates
The pores and rock are connected in such a way as to make fluid passage between them possible?
Permeable
Reservoir contains water gas or oil in layers from top to bottom
Gas oil water
In a water Drive, Water _______ the hydrocarbons when they enter the wellbore.
Replaces
If the reservoir pressure stays reasonably high it may be misinterpreted as a high gas reserve when is actually caused by an influx of?
Water
Determining how much oil or gas and oil reservoir is called a __________ calculation.
Volumetric
Determination of a reservoir pressure is best made by bottom hole pressure measurements during adequate blank time?
Shut – in
The portion of hydrocarbon that cannot be removed from a saturated reservoir by ordinary methods?
Residual gas saturation
When you subtract the volume of gas and estimated abandonment pressure from the volume of gas at standard conditions initially contained in an acre foot of reservoir determines what?
The recoverable gas reserves per acre foot of a reservoir
After production starts, the pressure to climb versus cumulative method can be used to further determine
Gas reserves
The relationship between the daily rate of delivery of gas at a well and the reservoir pressure decline is usually referred to as the_________ behavior of a well
Back pressure
Safety equipment sometimes functions automatically according to flow velocity. T or F
True
A long narrow oilfield would probably be best served by a loop gathering system. T or F
False; Best served by main trunk systems
Types of equipment built into a field gathering system will depend on how many impurities must be removed from the gas train before can be moved to a more centralized location? T or F
True
Variables that may affect the size of casing, tubing, and Wellhouse equipment chosen at a well may be: A. Expected rate of flow be. Possible fluid erosion see. Possible chemical corrosion D all of the above
D all of the above
All of the following our methods of preventing chemical corrosion except: A plastic coatings B. chemical injection C. dehydration D special alloy steels
C. Dehydration
Varying producing rates can cause stress on the tubing string because of A. Pressure variation B. Temperature variation C. Column variations
B. Temperature variations
Safety valves function when there are: A. Overpressure conditions B. Possible blow out conditions C. Under pressure conditions D. Any of the above
D. Any of the above
Deep wells usually have more serious corrosion problems than shallow wells because
The flowing temperatures are higher
When a plastic lining is used to prevent corrosion, any areas left uncoated are called
Hotspots
Chemical inhibitors used to prevent corrosion are usually put in at the wellhead by
Batch treatments or continuous injection
The American petroleum Institute has standardized what tight fittings used at wellheads
Flanged or studded
Wellhead chokes may be _________ or ___________
Positive or adjustable
Corrosion protective devices at the wellhead may consist of water containers for _______ or the placement of metal strips called _______ to check corrosion chemicals in the wellspring
Iron count observations; coupons
Four types of gathering systems
A. Single trunk B. Loop C. Multi trunk D. Combinations
Gas production at high temperatures may cause the problem of_____ _______; gas produced at low temperatures may cause a problem of_______ ___________?
Steel expansion; hydrate formation
Basic producing equipment includes _____. The ________ that start and stop the flow and the gauges and thermometers that measure the gas______ and _____________
Pipes; valves; pressure; temperature
Field processing of natural gas includes the separation of the gas from hydrocarbon condensate. T or F
True
A vertical separator is typically used were the Wellstream has a high gas – oil ratio. T or F
False
A horizontal separator can handle produced sand better than a vertical separator? T or F
False
Filter separator’s are better able to handle small size liquid or solid particles that are conventional separators. T or F
True
Stage separation allows the recovery of a more stable stock – tank liquid. T or F
True
Low – temperature separation systems must always use hydrate inhibitors. T or F
False
A problem with the use of low – temperature separation units is the high stock – tank vapor loss. T or F
True
Filled processing of natural gas includes A. Removal of condensable water B. Injecting odorants C. Increasing the specific gravity of the gas D. Provisions for reentrainment of separated oil and gas
A. Removal of condensable water
An advantage of horizontal separators is that? A. it does not require much space for installation B. It is best for handling the low gas-oil ratio wellstreams C. It is easier to hook up, is your service, easier to skid mount D. I can handle sand problems better than a vertical separator
C. It is easier to hook up, easier to service and easier to skid mount
The following statement best describes filter separators: A. They are superior to conventional units for removing slugs of water B. They have considerable pressure drop across filter cartridges C. They’re capable of removing all of the five-micron and larger particles from the stream when operating properly D. They cannot be made to remove both solid and liquid particles
C. They are capable of removing all of the five-micron and larger particles from a stream when operated properly
Stage separation – A. Provides an infinite number of separation stages B. Requires a storage tank C. Allows two or more equilibrium flashes at consecutively lower pressures. D. Allows liquefied propane and butane story entrain with the gases
C. Allows two or more equilibrium flashes at consecutively lower pressures
The most common accomplishment of field processing is the separation of the wellspring gas from?
Free liquids
Three basic types of conventional separators in wide use are?
- Vertical; 2. Horizontal; 3. Double barrel horizontal
Do you need designed to remove small particles of liquids and solids is a _______ separator
Filter
In a four stage separation system what is the fourth separation stage?
Storage tank
The low – temperature separation process is one of intentional ________ formation and controlled melting
Hydrate
A mechanical refrigeration system is often used when well – stream flowing __________ are too low to provide expansion for cooling
Pressures
Prior to the expansion of the gas with the choke the system in which a hydrate inhibitors use provides for injection of?
Glycol
Stabilization of condensates results in a large volume of_________ liquids available for sale?
Stock tank
Hydrate formation a gastrin can result in partial or complete blockage of flow lines. T or F
True
Temperatures below the freezing point of water 32°F are necessary for hydrate formation. T or F
False
Methanol and/or glycol injection into gas streams is sometimes used to prevent hydrate formation. T or F
True
And indirect flow – line heater is commonly used where hydrate formation is only rarely a possibility. T or F
False;
Safety drilling a T, L, or return Bends refers to a method that provides early detection of leaks due to corrosion and/or erosion in heater coils. T or F
True
Hey flowing gastrin contains 20 pounds of water per cubic feet at atmospheric pressure and 60°F hydrates will form at
70°F and 1500 psia
Ammonia, Briens, glycol and methanol are preferred as hydrate inhibitors– A. When the hydrate problem is serious and frequent. B. When the hydrate problem exists only a few days a year. C. On long-distance gas pipelines. D. Where it is necessary to raise the freezing temperature of entrained water
B. When the hydrate problem exists only a very few days of each year.
Flowline heaters are good choice for preventing hydrate formation. Letter a. Where personnel are on duty at all times to observe the operation. B. For long-distance pipeline transmissions. C. Where dehydration of the gas is not economical choice. D. Where electric power is readily available
C. Where dehydration of the gas is not an economical choice
The term dewpoint means the temperature which natural gas of any specify pressure is saturated with water vapor. T or F
True
A hot gas stream at a specified pressure requires less water vapor than a cooler want to reach the saturation point. T or F
False
There are two types of hydration equipment and both use solid desiccants. T or F
False
A dilute glycol solution can be re-concentrated by fractional distillation. T or F
True
Contamination of glycol in the dehydration plant is seldom a problem. T or F
False
Glycol is used in the dehydration plant sometimes phone with hydrocarbon condensate emulsions, some inhibitors and corrosion products. T or F
True
A solid or dry desiccant dehydration system will provide the highest possible dew-point depression. T or F
True
Adsorption processes do not involve chemical reactions. T or F
True
Dry desiccant dehydration units are not up to be affected by slugs of liquid water. T or F
False
Hydrogen sulfide is an undesirable component of a Gastro but carbon dioxide presents no problems. T or F
False
Sour crude is a term indicating that the crude oil contains an undesirable quantity of carbon dioxide
False; it contains hydrogen sulfide
Sour gas is a term indicating that the gas contains an unacceptable quantity of hydrogen sulfide
True
Gas sweetening is a process that removes sulfur gases from natural gas. T or F
True
The iron sponge process of gas sweetening is particularly suitable to gas streams having large volumes of H2S. T or F
False
The oldest acid-gas removal process used in industry is one using iron oxide (Fe2O3). It is called _____ ______ sweetening
iron sponge
Electric motors are rarely used to drive gas compressors in the field. T or F
True
A two stroke cycle internal combustion engine produces a power stroke for each revolution of the engine. T or F
True
Supercharging an inch and will cause it to burn fuel less efficiently
False
Maintenance on internal combustion engines tends to decrease in terms of dollars per horse power per year as the size of the engine increases. T or F
True
The vast majority of compressors used for gas service are of the reciprocating type. T or F
True
The cylinders of a compressor may be made from great Casteel. Casteel cylinders provide the highest permissible working pressures. T or F
False
Force and work our word to used to express the value of torque. T or F
False
The ratio of compression of the compressor is the ratio of the absolute discharge pressure to the absolute suction pressure. T or F
True
The clearance volume in the cylinder of a compressor is usually expressed as a percentage of the piston displacement volume. T or F
True
The power output of the gas turbine is a direct function of the heat energy (BTUs) released in the combustor. T or F
True
The hot exhaust gases from a gas turbine are always wasted into the atmosphere. T or F
False
Centrifugal compressors are low-speed devices that are best driven by reciprocating engines
False
An error signal is the difference between the desired and the actual values of the controlled variable. T or F
True
A bourdon tube they commonly C shaped metal tube steel that one in, measures temperature or pressure because it’s out of circumference is greater than its inner, and higher temperature or pressure will tend to straighten the tube and higher temperature air temperature. T or F
True
A bellows or diaphragm unit can be used to measure liquid level because of hydrostatic pressure of the liquid, but the unit must be used in a closed container. T or F
False
Most valves on the wellhead operate automatically. T or F
False
The linear flow characteristic of a valve is determined chiefly by its size. T or F
False
Valve actuators are classified according to the form of input signal and output power used. T or F
True
When a proportional controller reacts to a change in the controlled variable, it’s response is to change the manipulated variable in proportion to the change in the controlled variable. T or F
True
Automatic safety shutdown valves are necessary at the wellhead to shut in the well in the event of overpressure or under pressure upstream of the well. T or F
False
Hydrocarbon separation units almost certainly contain instruments to control flow rate, temperature, pressure and liquid level. T or F
True
Liquid level controls are of the proportional plus reset type. T or F
False
There is no useful relationship between the pressure drop across an orifice and the volume of gas flowing through the orifice. T or F
False
Straightening veins are usually bundles of small diameter tubing welded together and placed in the upstream section of the meter run. T or F
True
There is no practical way to replace orifice plate without first shutting down the line. T or F
False
The differential pressure across an orifice plate is always measured in inches of mercury. T or F
False
Become an instrument for measuring the specific gravity of gas compares the density of the gas with the density of air. T or F
True
The differential pressure recording element of an orifice meter installation must never be installed below the orifice. T or F
False
Your first flow constant, C1, contains a factor to correct for the contract temperature base. T or F
True
Water vapor in natural gas can cause errors in volume measurement. Unless the amount of water is accounted for, the errors at pressures above 200 psig are apt to be large. T or F
False
Repairs to and refilling of faulty Bellows meters in the field are recommended. T or F
False
One of the checks to be made on an orifice plate is to compare the actual orifice bore (as measured with a micrometer) to the value stamped on the plate. T or F
true
Corrosion of meter installation is due to hydrogen sulfide usually comes from H2 S in the surrounding atmosphere rather than the connecting piping system. T or F
True
Displacement meters are not used in field measurement of natural gas. T or F
False
Orifice meters are not satisfactory for gas liquids measurement. T or F
False
Gas testing is a part of field handling it is usually a form of measurement.
True
The charcoal test of natural gas is an adsorption process. T or F
True
A constriction in a flow line will cause a pressure drop in the flowing fluid. This pressure drop is called _______ pressure.
Differential
When planning on constructing a meter run, it is advisable to make direct references to
AGA report #3
The use of straining veins will reduce the amount of________ _______ required upstream of the orifice.
Straight pipe
Three types of differential pressure measuring devices are in common use for gas measurement
Mercury manometer; Bellows unit; force-balance unit
The secondary element of an orifice meter is the__________.
Recorder
A rule of thumb for gas measurement states that the differential range of the meter in inches of water should not exceed the_______ ____________ in pounds per square inch absolute
Static pressure
Recording gravitometers may be used where desirable or required. Types most frequently used are those making use of_________ methods and those using the___________method.
Weighing; momentum
The pipe or tubing that connects the flange on pipe taps to the differential pressure element of the meter should be______inch nominal diameter for lengths to 15 feet and ______inch diameter for lengths to 40 feet
1/4; 1/2
In the flow equation, the quantity (sq root of HwPf) is commonly referred to as the
Pressure extension
Maintenance of a chart recorder includes cleaning and inking the recording pens. The static pressure pen should be adjusted to record behind (lag) the differential-pressure pen approximately______ minutes on a 24 hour chart and______ hours on a seven day chart.
15; 2
Natural gas a 500 psia and 60°F at the saturation point contains 30 pounds of water per million cubic feet. The dew point of the gas is - A. 60°F. B. 20°F. C. 50°F. D. 30 pounds
A. 60°F
In a liquid desiccant dehydrator, A lean solution is - A. a drawing or dehydrating medium. B. A Water-rich solution containing less than 95% glycol. C. A glycol water solution containing 95 to 99% glycol. D. None of the above
C. A glycol water solution containing 95 to 99% glycol
In a typical liquid desiccant dehydrator unit, the wet gas passes first through the - A. Glycol surge tank. B. Oil water gas separator. C. Reflux condenser. D. Glycol absorber
B. Oil – water – gas separator.
The loss of glycol in a liquid desiccant dehydrator plant is a common problem. Normal loss in a good unit will amount to-A. About 0.1 gallons of glycol per million cubic feet of gas passing through the unit. B. About 1 gallon per million cubic feet. C. Between four and 5 gallons per million cubic feet. D. Between two and 3 gallons per million cubic feet.
a. About 0.1 gallons of glycol per million cubic feet of gas passing through the unit
Solid desiccant dehydrators provide the highest possible to point depression. It is common to process gas through the systems and have an outlet gas containing less than 0.5 of a pound of water vapor per million cubic feet. In an average system this dryness might correspond to a dewpoint of-A. 10°F. B. -10°F. C. -15°F. D. None of the above
D. None of the above
In the dehydrator unit, adsorption refers to-A. The chemical process of taking water out of gas. B. The action of glycol on water. C. The ability of a solid substance to capture and hold vapors and liquids. D. A regeneration gas cooler for condensing water from the hot regeneration gas.
c. The ability of a solid substance to capture and hold vapors and liquids
In a two tower, dry desiccant dehydrator unit, the gas first passes through-A. A high temperature heater. B. An adsorption tower. C. a gas cooler. D. An inlet separator
D. An inlet separator
Hydrates resemble snow, have a specific gravity of about 0.98 and will______in hydrocarbon liquids.
Sink
For long-distance transmission, the gas in the pipeline will eventually reach ground temperature; therefore, the _______ will ultimately have to be removed.
Water
For operations in hazardous area, flow-line heaters must be equipped with flame arrestors. These devices allow the heater to obtain enough _____ for combustion but prevent explosions or flames within the firetube from igniting a potentially hazardous atmosphere.
Air
A calcium chloride water solution with inhibitor is used generally to prevent ______ of the water bath.
Freezing
A Long-nose choke has an extended body that allows the choke orifice to be located within the indirect heater _______.
Bath
Water vapor may be removed by bubbling the gas through certain liquids that have an affinity for water. When vapors removed in this manner, the operation is called
Absorption
The gas leaving an absorber after contacting glycol is called
Dry gas
Diethylene glycol and triethylene glycol our names for two common
Liquid desiccants
In order to understand the varying conditions under which most liquid desiccant dehydrators operate, it is necessary to consider the effects of the 4 following major operating variables
Gas pressure; gas temperature; solution rate; solution concentration
Over normal pressure range up to 1200 psi, about ______ gallons of glycol must be circulate for every 1 pound of water removed at 55°F dewpoint depression.
2 gallons
A common problem countered in the operation of a liquid desiccant dehydration unit is glycol __________ by foreign material
Contamination
Glycol is typically re-concentrated in a ___________ equipped witch stripper and reflux condenser
Reboiler
A typical dry desiccant might have as much as _____ million square feet of surface area per pound
4
Dry desiccant such a silica gel and activated alumina remove water and other vapors by __________
Adsorption
A bit of dry desiccant may be regenerated by either reducing its pressure or increasing __________
Temperature
Solid or dry dessiccant units find their greatest application in _____ _________ ________
Gas transmission system
The life of solid desiccants can be shortened by various contaminants. Name 4 probable contaminants
Amines; glycol; lubricating oil; corrosion inhibitors
Severe fouling of a dry desiccant bed maker in the short time when treating a gas stream that contains both H2S and oxygen. The desiccant acts as a ________ to produce ________, which plugs the pores of the dessicant.
Catalyst; sulfur
Dry desiccants adsorb the various components in a wet gas stream in a selective sequence. The first component adsorbed will be
Water vapor
Hydrocarbon recovery units employ a variation of the _____ _________ dehydration process.
Dry desiccant
Three advantages of the adsorption system for hydrocarbon recovery
Separate dehydration not required; few moving mechanical parts; high-pressure is not required
Some gas dreams contain H2 S and carbon dioxide these under Zarbo components must be reduced in quantity or removed because-A. Both gases have an unpleasant sour older. B. Both components for masses in the presence of water become harmful corrosives. C. Most pipelines require that all traces of H2 S and CO2 be removed. D. H2S and CO2 cause water vapor in the processing equipment.
B. Both components for methods in the presence of water become harmful corrosives
The most widely used process for removing ass gas is for natural gas dreams is the Alkanolamine process. You can generally be described as-A. A process that uses chemical absorption to remove ass gases. B. A process that uses woodchips impregnated with Hydrated iron oxide. C. A process that uses a dry desiccants as an absorber. D. A process using cryogenic technology.
Hey. A process that uses chemical absorption to remove acid gases
In addition to H2 S and CO2 other gas components that need to be removed from a natural gas stream include-A. DEA and TEA. B. Carbon disulfide CS2 and carbonyl sulfide COS. C. Methane and monoethanolamine
B. Carbon disulfide CS2 and carBonyl sulfide
The alkanolamine sweetening process uses a week base reacting with a weak acid to give a ________________ salt
Water-soluble
In the alkanolamine process, the gas to be sweet and flows first to an inlet __________ . This _______ can be part of the absorber or a separate vessel.
Scrubber; scrubber
The glycol/amine process uses a combined solution of monoethanolamine, glycol and _______ for the simultaneous removal of_____ ______, and ____________.
Water vapor; H2S; CO2
The sulfinol process has the advantage of being able to remove _______, _______ and mercaptans as well as H2 S and CO2
COS; CS2
H2 S and CO2 can be removed by use of molecular sieves in a ________ ______Unit
Dry bed
Internal combustion engines maybe classified number number of ways including-A. Two-stroke or four stroke combustion cycle. B. Single or double acting power impulse. C. Cylinder arrangement. D. All of the above
D. All of the above
A four stroke cycle internal combustion engine needs to revolutions of the crankshaft to complete the cycle. The four strokes include-A. Intake and compression. B. Supercharging an ignition. C. Scavenging an exhaust. D. All of the above.
A. Intake and compression
Supercharging an engine may be done in several ways including-A. Using air blowers driven by belts from the engine flywheel. B. Using an electrically driven blower. C. Using a centrifugal compressor driven by an exhaust gas turbine. D. All of the above
D. All of the above
Compressor cylinders may be made from Gray cast iron, nodular iron, Cast steel or forged steel which statement below best describes a type of cylinder? A. Gray cast iron can operate at the highest pressure. B. Nodular iron can have a tensile strength of 67,000 PSI C. Casteel cylinders are usually rated it working pressures of 2500 or 3000 PSI. D. Ford still will tolerate pressures of only 1500 psi
C precast steel cylinders are usually rated at working pressures of 2500 or 3000 PSI
The ratio of compression of a compressor is the ratio of the absolute pressure of the discharge end to the absolute pressure of the suction end. the ratio of compression of a compressor that has a suction end pressure of 500 psi a and a discharge pressure of 3000 psia is- A. 621. B. 5.85 to 1. C. One and 2/3 to 1. D. 7.8 to 1.
A. 6 to 1
Piston displacement of a compressor is measured in cubic feet per minute what will be the single action piston displacement of a compressor having the following dimensions piston head equals 50 in.²; stroke length equals 10 inches; speed equals 200 RPM?
C. 57.87 cubic feet per minute
Compressors are designed originally to utilize the engine horsepower as fully as possible. The factors that affect unit capacity and developed horsepower are-A. Compressor cylinder clearance. B. Suction pressure and temperature. C. Discharge pressure and speed. D. All of the above.
D. All of the above
A gas turbine engine is characterized by-A. Very hot exhaust gases useful for heating boilers oil heaters and so forth. B. Very high rotational speeds. C. Relatively low maintenance requirements on the engine itself. D. All of the above.
D. All of the above
Natural gas often had to be flared at its production site earlier in the century. T or F
True
Elemental Sulfur can be recovered from the carbon dioxide found in a well-gas. T or F
False; it is H2 S
Some of the operations found in the processing plant are also performed in the field. T or F
True
The main object of field handling of natural gas is too-A. Make it marketable. B. Make it expensive. C. Make money off it’s impurities. D. Do better welding of pipes.
Make it marketable
The effective reservoir volume is established by-A. Determining the wells drainage area. B pre-determining a Wells pay thickness. C. Calculating both of the above.
C calculating both of the above
Natural gas used to be flared out its production site because-A. It was considered dangerous. B. It had no known practical use. C. There was no way to transport it from the site. D. It was too expensive for consumers to buy
There was no way to transport it from the site
Hydrocarbon pore volume refers to-A. The volume within the reservoir not occupied by rock. B. The number of pores and reservoir rock. C. The poor space volume occupied by hydrocarbons. D. The percentage of total poor space occupied by gas.
C. The pore space volume occupied by hydrocarbons.
In a depletion drive, the energy to force fluids up the well-bore is that from________ expansion
Gas
