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