Sunday, May 30, 2010

California - the 1960s and 1/2 day of gasoline

Growing up in the 1960s, certain radio headlines seem to remain engrained in my pre-mp3, auditory memory:  Wayne Morse, James Meredith, murders of civil rights workersDiem, Medicare (yes, Medicare).

I understood neither the context nor parental answers ("He wants to go to school"), but I am certain the hourly news and daily repetition on classical WQXR (hey, I didn't have choice) created a permanent mental image not unlike an image etched into an old CRT monitor.

Recently, other distant names have surfaced:   permafrost and Alaska pipeline,  Torrey Canyon  and a very far-away place with beautiful birds and beaches called Santa Barbara.

It was a long, long time ago, so long ago that only aging sailors had tatoos.  But I remember.

Rather than complain about the relative guilt of BP, George W Bush, Obama or our addiction to oil, I want to do a calculation - something useful to get a feeling about how much oil has spilled into the Gulf.

For example, if all of the spilled oil had been gasoline, how many gallons would every California car get?  Let's try.

How Much Oil Has Spilled in the Gulf?

BP said 1,000 then 5,000 bbls a day.   After BP released a short video, NPR started reporting that scientists thought it was 20 -80,000 bbls per day.

Let's assume oil is flowing at a rate of 20,000 bbls each day.   There are 42 gallons of oil in a barrel and it has been spilling for 40 days.  If you multiple this out, it is about 34 MM gallons of crude oil.

Since the explosion on April 20, 2010, today's papers say about 18-40 MM gallons oil have spilled, so I in the right ball park.   Let's split the difference the assume the real number is 29 MM gallons of crude oil have spilled into the Gulf.

Ok, 29 MM gallons of oil sounds like a lot. 17% of Louisiana jobs are related to oil. If you are a Louisiana Brown Pelican, it is an awful lot of oil!   But what does 29 MM gallons mean to us?

Crude Oil to Gasoline?

A gallon of gasoline is not the same as a gallon of oil.  Both are mixtures of all kinds of chemicals and hydrocarbons.

Gasoline sold in California has about 100 different molecules.

But let's assume each gallon of crude oil results in 1/2 gallon of gasoline, give or take.  This is a "guesstimate."

So the 29 MM gallons of oil in Gulf, comes down to about 15 MM gallons of gasoline.

15 MM gallons of gasoline


Ok, we are get close.   Now California consumed 360 MM barrels of gasoline for transportation in 2008, i.e. all of us in California collectively consume 1 MM barrels gasoline EACH DAY (360/365) for our cars.  This is 42 MM gallons of gasoline each day in California.

Here we are then:  the total amount of oil spilled into the Gulf of Mexico would power every California car (yours and mine) for less than 1/2 day (15/42)!  Morning rush hour, barely!



May 30, "Plans for the Worst" New York Times
http://www.nytimes.com/2010/05/31/us/31spill.html?ref=global-home

WQXR
http://en.wikipedia.org/wiki/WQXR

Louisiana & Energy, the Pelican State
http://en.wikipedia.org/wiki/Louisiana#Energy

California - 360 MM Barrels Gasoline, Transportation (2008)
http://www.eia.doe.gov/emeu/states/hf.jsp?incfile=sep_fuel/html/fuel_mg.html

Permafrost and Alaska Pipeline
http://en.wikipedia.org/wiki/Alaska_Pipeline#Conservation_objections

1962  James Meredith
http://en.wikipedia.org/wiki/James_Meredith

1967 Torrey Canyon Disaster
http://en.wikipedia.org/wiki/Torrey_Canyon

1969 Santa Barbara Oil Spill
http://en.wikipedia.org/wiki/1969_Santa_Barbara_oil_spill

1 comment:

  1. BP has profit of $20 for each barrel of Gulf of Mexico oil - Bloomberg.

    ReplyDelete