智慧树知到《气藏工程（双语）》章节测试答案

智慧树知到《气藏工程（双语）》章节测试答案
绪论单元测试
1、According to the phase diagram，the gas reservoir can be devided into（）.
A.condensate gas reservoir
B.wet gas reservoir
C.dry gas reservoir
D.pure gas reservoir
正确答案：condensate gas reservoir；pure gas reservoir
2、The unconventional gases include（）.
A.tight gas
B.coalbed methane
C.shale gas
D.gas hydrate
E.associated gas
正确答案：tight gas；coalbed methane；shale gas；gas hydrate
第一章单元测试
1、The constituents and their（）in the natural gas is called the composition of natural gas.
A.mole fraction
B.proportions
C.mass fraction
D.volume fraction
正确答案：proportions
2、The z factor depends on（）， can be measured in the laboratory or obtained from correlations.
A.gas composition
B.pressure
C.temperature
D.specific gravity
正确答案：gas composition；pressure；temperature；specific gravity
3、Several gas properties have the same values for similar gases at identical values of（）.
A.reduced pressure
B.critical pressure
C.reduced temperature
D.critical temperature
正确答案：reduced pressure；reduced temperature
4、Under standard conditions， we can express the specific gravity of a gas mixture as ratio of apparent molecular weight of the gas to（）.
A.30
B.29
C.28
D.16
正确答案：29
5、If a significant fraction of heavy components is present in the natural gas mixture， laboratory measurements of（） of the C7+ fraction are required to use mixing rules.
A.the molecular weight
B.mole fraction
C.gravity
D.critical temperature
E.critical pressure
正确答案：the molecular weight；mole fraction；gravity
6、The FVF of a gas is defined as the ratio of gas volume at reservoir temperature and pressure to the volume at（）.
A.stock tank condition
B.surface condition
C.standard condition
D.reservoir condition
正确答案：standard condition
7、For an ideal gas， the isothermal coefficient of compressibility is the reciprocal of（）.
A.z factor
B.temperature
C.molecular weight
D.pressure
正确答案：pressure
8、Under the condition that reservoir pressure is greater than the original bubblepoint pressure， the solution gas oil ratio is（） the solution gas oil ratio at bubblepoint.
A.greater than
B.equal to
C.less than
D.less or equal to
正确答案：equal to
9、The concentration of dissolved solids in water can be measured with several different units， including（）.
A.parts per million
B.weight percent
C.grams of salt per liter
D.grams Nacl per liter
正确答案：parts per million；weight percent；grams of salt per liter；grams Nacl per liter
10、The effect of non-Darcy flow usually is incorporated into fluid flow equations as an additional（）that is rate dependent.
A.skin factor
B.pressure drop
C.rate change
D.pressure change
正确答案：skin factor
第二章单元测试
1、To develop analysis and design techniques for well testing， we must make several simplifying assumptions about the well and reservoir being modeled.These assumptions are introduced as needed to combine（）.
A.the principle of mass conservation
B.an equation of fluid motion
C.an equation of state
D.an equation of well testing
正确答案：the principle of mass conservation；an equation of fluid motion；an equation of state
2、In a（） reservoir， fluid flows radially from the reservoir to the wellbore.
A.Homogeneous-acting
B.Heterogeneous-acting
C.polyhedral
D.cylindrical
正确答案：Homogeneous-acting；cylindrical
3、Assuming that the（） is zero， we can write a mass balance on the element as win-wout=qm .
A.pressure
B.velocity
C.net generation of matter
D.the mass flow rate into the system
正确答案：net generation of matter
4、An EOS relates volume（or density） to（）.
A.pressure
B.velocity
C.temperature
D.viscosity
正确答案：pressure；temperature
5、The assumption of constant is valid only for（）.
A.very low pressure and gas gravities at low temperatures
B.very low pressure and gas gravities at high temperatures
C.very high pressure and gas gravities at low temperatures
D.very high pressure and gas gravities at high temperatures
正确答案：very low pressure and gas gravities at high temperatures
6、The assumptions of ideal-reservoir model include（） and negligible gravity effects.
A.Homogeneous and isotropic porous medium
B.pressure dependent rock and fluid properties.
C.applicability of Darcy’s law
D.uniform thickness， radial flow， small pressure gradients
正确答案：Homogeneous and isotropic porous medium；pressure dependent rock and fluid properties.applicability of Darcy’s law；uniform thickness， radial flow， small pressure gradients
7、Using the reference length， we define dimensionless radius as（）.
A.rD=r˙rw
B.rD=r/rw
C.rD=rw/r
D.rD=r-rw
正确答案：rD=r/rw
8、We would like pD=0 when p=pi ， pD to increase with time and pD to be positive.So we rewrite pD in the form（）.
A.pD=（pc-p）/pi
B.pD=（p-pc）/pi
C.pD=（p-pi）/pc
D.pD=（pi-p）/pc
正确答案：pD=（pi-p）/pc
第三章单元测试
1、The dry gases at the surface “dry” indicates that no（）form in the surface equipment during production.
A.water
B.liquid hydrocarbons
C.heavy hydrocarbons
D.connate water
正确答案：liquid hydrocarbons
2、The total cumulative gas production is the difference between original gas in place and gas in place at some（）.
A.later conditions
B.economic conditions
C.abandonment conditions
D.technical conditions
正确答案：abandonment conditions
3、Because of reservoir（）， the encroaching water does not sweep some portions of the reservoir effectively.
A.heterogeneities
B.discontinuities
C.water influx
D.faults
正确答案：heterogeneities；discontinuities
4、To account for the unswept portions of the reservoir， we introduce a（） into the volumetric equation.
A.volumetric sweep efficiency
B.water saturation
C.recovery factors
D.gas saturation
正确答案：volumetric sweep efficiency
5、Material balance methods provide a simple and effective methods for estimating（） at any stage of reservoir depletion.
A.original gas in place
B.recovery factor
C.gas reserves
D.production
正确答案：original gas in place；recovery factor；gas reserves
6、The dominant drive mechanism of normal volumetric dry gas reservoir is（）as reservoir pressure decreases.
A.rock expansion
B.water expansion
C.oil expansion
D.gas expansion
正确答案：gas expansion
7、The Methods for estimating water influx include（）.
A.horner method
B.van Everdingen-Hurst method
C.Carter-Tracy method
D.Fetkovich Method
正确答案：van Everdingen-Hurst method；Carter-Tracy method；Fetkovich Method
8、To develop the material balance equation for a volumetric geopressure gas reservoirs， the drive mechanism including（）during the productive life of the reservoir.
A.gas expansion
B.rock expansion
C.water expansion
D.oil expansion
正确答案：gas expansion；rock expansion；water expansion
9、If we analyze the geopressured reservoir using techniques for normally pressured reservoirs， we will（）the original gas in place .
A.underestimate
B.Overestimate
C.equal to
D.any possible
正确答案：Overestimate
10、Using volumetric method， the original gas in place can be calculated by（）.
A.areas
B.porosity
C.thickness
D.water saturation
E.FVF of gas in initial
F.cumulative gas production
正确答案：areas；porosity；thickness；water saturation；FVF of gas in initial
第四章单元测试
1、The basis of decline curve analysis is that future production continues to follow the past trend， we can use these models to estimate（）.
A.original gas in place
B.ultimate gas reserves
C.remaining productive life
D.formation permeability
E.skin factor
正确答案：original gas in place；ultimate gas reserves；remaining productive life；formation permeability；skin factor
2、Depend on the value of the decline exponent has different forms， these forms of decline are（）.
A.exponential
B.harmonic
C.hyperbolic
D.Aprs
正确答案：exponential；harmonic；hyperbolic
3、The Arps’ decline equation is based on important and widely violated assumptions including（）.
A.constant BHP
B.unchanging drainage area
C.constant k and s
D.boundary dominated flow
正确答案：constant BHP；unchanging drainage area；constant k and s；boundary dominated flow
4、For exponential decline， there are some straight lines of（）.
A.lgq VS t
B.lgq VS Gp
C.q VS Gp
D.q VS t
正确答案：lgq VS t；q VS Gp
5、（）called constant percentage decline， is characterized by a decrease in production rate per unit of time .
A.exponential
B.harmonic
C.hyperbolic
D.Aprs
正确答案：exponential
6、The Fetkovich decline type curves are based on（） to the flow equations for production at constant BHP.
A.empirical solution
B.analytical solution
C.actual solution
D.practical solution
正确答案：analytical solution
7、Application of the Fetkovich type curves， we can estimate（）.
A.gas reserves
B.permeability
C.reservoir pore volume
D.skin factor
E.productive life
正确答案：gas reserves；permeability；reservoir pore volume；skin factor；productive life
8、Carter offered improved accuracy by plotting functions that include the changes of parameters（）in gas properties with pressure.
A.FVF
B.Viscosity
C.Compressibility
D.density
正确答案：Viscosity；Compressibility
9、For the harmonic Decline， the decline exponent is（）.
A.equal to 1
B.less than 1
C.larger than 0
D.equal to 0
正确答案：equal to 1
10、To solve the arps’ equation， we need to calculate three parameters of（）.
A.initial flow rate
B.initial decline rate
C.decline exponent
D.time
正确答案：initial flow rate；initial decline rate；decline exponent
第五章单元测试
1、For the line-source well，what are the additional assumptions？
A.Radial flow
B.Applicability of Darcy's flow
C.The well has zero radius
D.The well drains an infinite area
正确答案：The well has zero radius；The well drains an infinite area
2、To solve the arps’ equation， we need to calculate three parameters of（）.
A.initial flow rate
B.initial decline rate
C.decline exponent
D.time
正确答案：initial flow rate；initial decline rate；decline exponent
3、Flow periods in a vertically fractured well include（）.
A.Fracture Linear Flow
B.Bilinear Flow
C.Formation Linear Flow
D.Elliptical Flow
E.Pseudoradial Flow
正确答案：Fracture Linear Flow；Bilinear Flow；Formation Linear Flow；Elliptical Flow；Pseudoradial Flow
4、We model a（） rate gas flow test using superposition in time methoD.
A.constant
B.variabl
C.High
D.Low
正确答案：variabl
5、The basis of well-test analysis for homogeneous-acting reservoir is（）.
A.the line-source solution to the diffusivity equation
B.the line-source solution to the state equation
C.the line-source solution to the fluid motion equation
D.the line-source solution to the fluid continuity equation
正确答案：the line-source solution to the diffusivity equation
6、The wellbore（） state flow pressure of gas well can be expressed by pseudopressure and pseudotime， pressure and time， adjusted pressure and time， pressure square and time.
A.steady
B.pseudosteady
C.unsteady
D.none of the above
正确答案：unsteady
7、The plot of adjusted shut in BHP， from a buildup test as a function of the log of the adjusted Horner time ratio function， we CANNOT calculate parameters of（）.
A.apparent skin factor
B.original reservoir pressure
C.actual skin factor
D.permeability
正确答案：actual skin factor
8、In gas reservoir with（）， non-Darcy flow effects may cause substantial errors in estimates of the apparent skin factor.
A.k>0.1d
B.k>0.1md
C.k<0.1d
D.k<0.1md
正确答案：k>0.1md
9、The original reservoir pressure is obtained by extrapolating the middle-time semilog straight line to （）.
A.（tp-Δt）/Δt=1
B.（tp+Δt）/tp=1
C.（tp-Δt）/tp=1
D.（tp+Δt）/Δt=1
正确答案：（tp+Δt）/Δt=1
10、In the pressure drawndown test， the slope of the straight line of p vs logt can calculate the reservoir（）.
A.rate
B.permeability
C.thickness
D.pressure
正确答案：permeability