Mineral scale in gravel packed wells
- Statoil, Stavanger (Norway)
Mineral scales of barium, strontium and calcium sulphate are well known to the oil industry. The most common scale is calcium carbonate. However carbonate, unlike the three other scales mentioned, is acid soluble and it is perhaps the sulphate scales which gives the greatest problems. One additional feature of the sulphate scales is that they very often coprecipitate radium sulphate which is radioactive and difficult to dispose of and troublesome to work with from a health and safety aspect. This paper presents the production history of gravel packed wells which have experienced the deposition and removal of mainly strontium sulphate (SrSO{sub 4}) scale. A scale prediction program is used to analyze the scale tendencies under both equilibrium and kinetic controlled conditions. The flow and scale characteristics of gravel packed and naturally completed wells are compared.
- OSTI ID:
- 70051
- Report Number(s):
- CONF-940222-; TRN: IM9529%%390
- Resource Relation:
- Conference: Corrosion 94: National Association of Corrosion Engineers (NACE) international annual conference, Baltimore, MD (United States), 28 Feb - 4 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of Corrosion/94 conference papers; PB: 5005 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method of gravel packing wells
An improved solvent for sulfate scales