Page 478 - Pipeline Pigging Technology

Pigging research

will be tremendous. A small-diameter inspectable, piggable, pipeline which
can be tied-in to an existing large-diameter export line, will indeed be a major
step forward.
There is little doubt that study of the past practices and the present and
future needs of pipeline operators will define other research and develop-
ment programmes which will provide very significant further technical and
financial rewards.

REFERENCES

1. M.L.Barrett, Jr., 1959. Using expandable spheroids for batch separation.
Pipe Line Industry, June.
2. A.E.McDonald and O.Baker, 1964. A method of calculating multi-phase flow
in pipelines using rubber spheres to control liquid holdup. Oil & Gas
Journal, June 15, 22, 29 and July 6.
3. D.W.Bean and H.N.Eagleton, I960. Batching two-phase flow with sphe-
roids. Pipe Line Industry, March.
4. A.Hara, H.Hayashi, O.Suzuki and N.Sheji, 1978. Calculations find sphere
pressure loss in lines. Oil & Gas Journal, May 1.
5. A.Hara, H.Hayashi and M.Tsuchiya, 1979. Sphere separation system aids
longhaul oil-product transport. Oil & Gas Journal, Jan 22.
6. K.Kohda, Y.Suzukawa and H.Furukawa, 1988. New method for analyzing
transient flow after pigging scores well. Oil & Gas Journal, May 9.

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