Scale inhibitor evaluations and a mechanism of inhibition of sparingly soluble salts

Mason B. Tomson, J. Matty, J. E. Oddo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Scale deposited within production systems associated with high volumes of produced brine can pose serious problems to ihe opera tor both in field economics or in the ratal loss of production. Seven barrels of oilfield brine are produced for every barrel-equivalent of energy obtained in the United Stairs each year and with the advent of enhanced recovery methods, this ratio can be as high as thirty or fifty to one. Many inhibitors have been in use for over fifty years, but no quantiianve explanation for their effectiveness has been available. A general theory of inhibitor effectiveness and mechanisms of action are presented and two mechanisms based on diffusion rates are proposed with associated equations. Many scale inhibitors are currently on the market primarily based on phosphonates, copolymers or polymaleates An inhibitor evaluation apparatus developed at Rice University has gained wide acceptance in the petroleum industry and will be described. The results of inhibitor evaluation tests in various brine systems will be discussed in conjunction with the theory of inhibitor effectiveness. Results are presented for CaSQ, and CaGO.

Original languageEnglish
Title of host publicationAnnual Technical Meeting, ATM 1990
PublisherPetroleum Society of Canada (PETSOC)
Number of pages7
ISBN (Print)9781555634803
StatePublished - 1990
Event1990 Annual Technical Meeting, ATM 1990 - Calgary, Canada
Duration: Jun 10 1990Jun 13 1990

Publication series

NameAnnual Technical Meeting, ATM 1990


Conference1990 Annual Technical Meeting, ATM 1990


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