Science continued to evolve rapidly in the following decades. Once the geologists knew what formations contained oil and gas, seismic surveys allowed
geophysicists to map the structures. Thus the rapidly developing science of geophysics began to play a key role after Leduc.
In the 1960s,
the processing, presentation and interpretation of seismic data was
revolutionized by the introduction of computers, digitally recorded data, and
the common depth point method of shooting and recording. The reliability of
seismic data improved dramatically, and this greatly improved the chances of
drilling success. These sophisticated geophysical techniques then helped
explorers to find more elusive targets such as the pinnacle reefs at Rainbow
Lake and Zama in northern Alberta. Three-dimensional seismic surveying was one
of the new methods introduced in the 1980s.
surveys left a trail of shotholes and cutlines across the landscape. These scars
were slow to heal in forest and muskeg areas. New technologies have greatly
reduced the land disturbance.
Petroleum Communication Foundation. Our Petroleum Challenge: Exploring Canada's Oil and Gas Industry, Sixth Edition. Calgary: Petroleum Communication Foundation, 1999. With permission from the Centre for Energy.