An interesting question. I asked Google.
does dilbit float?
At this time the GOS is third and this is fourth.
What is dilbit mixed with before it goes into the pipeline?
To reduce the viscosity of bitumen so that it flows efficiently in a pipeline, bitumen is often diluted with a light petroleum liquid to produce diluted bitumen, or dilbit, which is a form of crude oil that is carried in many pipelines. The diluent is typically a liquid that made from condensed natural gas and is a thinning agent used in many industrial processes.
Does it float or sink if it spills in water?
Oil sands-derived crudes behave the same way as conventional crude oil, which floats in still or slow-moving water. Crude oil does sink if it is allowed to weather and mix with dirt over time, making a swift response to a spill in water critical. In turbulent water, it is typically driven to the bottom of the river where it tends to stick to rocks, which can make clean-up more difficult.
What is
Wabasca Heavy Crude?
About as crude as it gets. The divider doodle beckons.
Full disclosure. I am not a chemist or anything similar. Father worked for an Exxon subsidiary and separately at Mobil before they merged, in a computer capacity. Mother worked as a technical librarian at Mobil Toxicology. She doesn't remember it. In neither case was it their life's work.
Father went to middle management school and told me two things I remember vividly.
Mobil is an oil company.
Mobil has no official opinion regarding where oil comes from or how much there is.
When the Earth collapsed from space the carbon was included and it is now in many places. An exact guess regarding how much there is does not exist.
It has moved in interesting and unknown ways.
Bitumen is an interesting case. Will it become crude oil or will it become coal?
It's just barely liquid.
Chemical weathering of rocks produces both marble and limestone. I have swum in the hole that the Empire State Building came out of.
Weathering of oil in the water mostly involves evaporation rather than oxidation and when the light added fractions evaporate it sinks.