lecutre 1

Question 1

what are the four types of HC molecules

Answer 1

paraffins, aromatics, naphtenes, asphaltics

Question 2

how many carbons do gas HC molecules have

Answer 2

1-4

Question 3

how many carbons does oil HC molecules have

Answer 3

5+

Question 4

aramatic crude oils smell

Answer 4

fruity

Question 5

what are the 5 different crude oil properties covered?

Answer 5

sulfur content, asphalt content, pour point, cloud point, API gravity

Question 6

what is the equation for specific grapivty

Answer 6

density of oil / density of water

Question 7

what is the equation for API gravity

Answer 7

[ (141.5 / SG ] - 131.5 (at 60 deg F)

Question 8

what is API graivty 35+ crude called

Answer 8

light

Question 9

what is API graivty 25 - 35 crude called

Answer 9

medium

Question 10

what is API graivty less than 25 called

Answer 10

heavy

Question 11

what is API graivty less than 10 crude called

Answer 11

very heavy

Question 12

sweet crudes are defined by what percent sulfur by weight

Answer 12

less than 0.5%

Question 13

what are the four reasons sulfur in HC is bad

Answer 13

acid rain, corrosive, air pollutant, undesirable impurity

Question 14

what temps is viscocity determined at

Answer 14

77 and 212 deg F

Question 15

how is viscocity measured

Answer 15

the amount of time for HC to flow through a calibrated glass capillary viscometer

Question 16

lower pour points have more of which type of HC?

Answer 16

aromatics

Question 17

higher pour points have more of which type of HC?

Answer 17

paraffins

Question 18

at what temp is the cloud point above the pour point

Answer 18

2 - 5 deg F

Question 19

asphaltene content gives an indication of the amount of what ____ during processing

Answer 19

coke

Question 20

what is the name of the process of splitting crude oil into simipler mixtures

Answer 20

fractional distillation

Question 21

what are the different types of crude made from fractional distillation

Answer 21

fractions

Question 22

what two chemical proccesses crack HC

Answer 22

thermal, catalytic

Question 23

what are the three types of natural gas groupings

Answer 23

associated gas, non-associated gas, formation gas

Question 24

natural gas is composed of what type of HC

Answer 24

paraffins (EPB)

Question 25

what are three other names for condensate

Answer 25

drip gas, white gas, casing head gasoline

Question 26

how many carbons are in condensate

Answer 26

5 - 7

Question 27

what is spiking

Answer 27

adding condensate to crude oil

Question 28

condensate turns to liquid when

Answer 28

temperautre drops

Question 29

what are the five types of reservoir hydrocarbon classifications

Answer 29

dry gas, wet gas, retrograde gas, black oil, volatile oil

Question 30

what is volatile oil

Answer 30

API less than 40, intermediate molecules, liquid

Question 31

what is black oil

Answer 31

API less than 45 long heavy molecules liquid

Question 32

what is retrograde gas

Answer 32

gas in reservoir under original pressure, liquid condensate during subsurface production

Question 33

what is wet gas

Answer 33

gas in reservoir even during production liquid condensate at subsurface

Question 34

what is a mineral

Answer 34

relatively pure chemical compound

Question 35

what are three types of sedi rocks

Answer 35

clastic, organic, crystalline

Question 36

what is lithology

Answer 36

description of the physical caracteristics of a rock color, grain size, composition, texture

Question 37

what are the four classifications of sedi grain size

Answer 37

coarse sandstone, fine sandstone, siltstone, shale

Question 38

what is lithification

Answer 38

the process where rock particles become one rock under pressure, porosity destruciton