Bibliographic Citation
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Title | KCI may in some cases prevent good casing cement jobs |
Creator/Author | Dillenbeck, R.L. ; Strickland, B.D. (Western Co. of North America, Oklahoma City, OK (US)) ; Orr, B.R. (Western Co. of North America, Yukon, OK (US)) |
Publication Date | 1991 Nov 04 |
OSTI Identifier | OSTI ID: 5572362 |
Other Number(s) | ISSN0030-1388; CODEN: OIGJA |
Resource Type | Journal Article |
Resource Relation | Oil and Gas Journal ; Vol/Issue: 89:44 |
Subject | 020300 -- Petroleum-- Drilling & Production ;360602 -- Other Materials-- Structure & Phase Studies; CEMENTS-- ADDITIVES;CEMENTS-- CHEMICAL COMPOSITION;CEMENTS-- PERFORMANCE TESTING;OIL WELLS-- CEMENTING; OIL FIELDS;POTASSIUM CHLORIDES;WELL CASINGS;WELL COMPLETION |
Related Subject | ALKALI METAL COMPOUNDS;BUILDING MATERIALS;CHLORIDES;CHLORINE COMPOUNDS;GEOLOGIC DEPOSITS;HALIDES;HALOGEN COMPOUNDS;MATERIALS;MINERAL RESOURCES;PETROLEUM DEPOSITS;POTASSIUM COMPOUNDS;RESOURCES;TESTING;WELLS |
Description/Abstract | While the effects of potassium chloride in cement may seem desirable individually or in aggregate, research has shown that in at least some applications, KCl usage may be detrimental to certain aspects of cement slurry performance.^Muriate of potash, more commonly known as potassium chloride (KCl), is a compound that can influence a wide variety of cement performance parameters.^Normally loaded at 2-5% by weight of mix water (BWOW), KCl is generally thought to act as a mild accelerator, a slight dispersant or thinner, and finally as a clay/shale stabilizer or control agent.^Ever since researchers discovered that KCl could effectively control swellable clays, KCl usage in oil field cements has been increasing.^The concentrations of KCl in these cement slurries also seems to be on a gradual increase.^The early applications used 2% KCl BWOW; more recent slurry formulations may use 3% or even 5%.^As KCl became more popular, other benefits supposedly attributable to its usage began to surface.^Many of the benefits, such as acceleration, have been documented in print, while others have not.^When the authors of this article began to survey individuals involved with cementing design and applications, it became apparent that the reasons for using KCl were as varied as the convictions about the need for the material in the first place.^While most used KCl in cements at least occasionally, many could only state vague reasons why the material was used in a given application.^Many used KCl only on the recommendation of some other perceived authority. |
Country of Publication | United States |
Language | English |
Format | Pages: 71-75 |
System Entry Date | 2001 May 13 |
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