Reducing formation damage through two-stage polymer filtration
Formation damage resulting from the use of unfiltered polymers during gravel pack completion operations has been addressed as it relates to HEC completion fluids. However, other filtered polymer systems exhibit properties which, in specific applications, may out perform HEC systems. Thus, the performance characteristics of six commonly used polymer systems, hydroxyethyl cellulose (HEC), clarified xanthan gum (XC), HEC/XC blends, crosslinked carboxymethyl hydroxyethyl cellulose (CMHEC), hydroxypropyl guar (HPG), and standard xanthan gum (XCD), required additional evaluation. Fluid modelling was employed using a new two-stage filtration process (gel filtration) in which the viscosified fluids were optimally sheared and fine-filtered to improve sand placement efficiency and reduce formation damage. The data obtained from this study establishes mixing and filtration design criteria for optimizing completion techniques such as gravel packing, sand washing, polymer diverting, and lost circulation control.
- Research Organization:
- BJ-Titan Services Co.
- OSTI ID:
- 6974011
- Report Number(s):
- CONF-861080-
- Resource Relation:
- Conference: Society of Petroleum Engineers annual technical conference and exhibition, New Orleans, LA, USA, 5 Oct 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
NATURAL GAS WELLS
FORMATION DAMAGE
PACKINGS
SAND CONSOLIDATION
WELL COMPLETION
OIL WELLS
CELLULOSE
CHEMICAL COMPOSITION
CROSS-LINKING
EFFICIENCY
ETHYL RADICALS
FILTRATION
FLOW MODELS
GELS
HYDRAULIC CONDUCTIVITY
HYDROXY COMPOUNDS
METHYL RADICALS
MIXTURES
POLYMERS
SHEAR
WORKING FLUIDS
XANTHUM GUM
ALKYL RADICALS
CARBOHYDRATES
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
FLUIDS
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
POLYMERIZATION
POLYSACCHARIDES
RADICALS
SACCHARIDES
SEPARATION PROCESSES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing