Tengiz Oil Field Expansion in Kazakhstan - Chevron Human Energy
Stories

The Tengiz Field in Kazakhstan is one of the worlds 10 largest crude
oil fields — and one of the most complex to produce. The crude oil
is high in hydrogen sulfide gas, and the reservoirs must be
maintained at ultra-high pressures in order to maximize production.
Two expansion projects of extraordinary scope have overcome both
challenges and almost doubled production capacity to 540000 barrels
of crude oil, 760 million cubic feet of natural gas and 46000
barrels of natural gas liquids per day. One project called for
building the largest facility in the world for processing crude oil
and separating out the hydrogen sulfide gas. The second included a
specially designed compressor that reinjects one-third of the gas
back into the reservoir at the highest pressures ever achieved. The
gas helps maintain reservoir pressure and acts as a solvent,
sweeping additional crude oil toward producing wells.

The Tengiz Field in Kazakhstan is one of the worlds 10 largest crude
oil fields — and one of the most complex to produce. The crude oil
is high in hydrogen sulfide gas, and the reservoirs must be
maintained at ultra-high pressures in order to maximize production.
Two expansion projects of extraordinary scope have overcome both
challenges and almost doubled production capacity to 540000 barrels
of crude oil, 760 million cubic feet of natural gas and 46000
barrels of natural gas liquids per day. One project called for
building the largest facility in the world for processing crude oil
and sepa...