Frac and pack stimulation: Application and field experience from Hylia Gabon, West Africa
This paper describes a two-step frac/gravel pack completion procedure conducted from a jack-up rig offshore Gabon in 1993 and 1994. After an in-depth, sand production study, seven wells were completed using hydraulic fracturing and cased-hole gravel packs. Because the Anguille formation spreads over a large gross interval, production screens of 50 to 100 m in length were used. Single-stage internal gravel packs (IGPs) on such large intervals were considered impossible to achieve with reasonable skin values. The frac-pack technique was an attractive way to achieve good proppant placement, considering that the formation being fractured would have a more homogeneous conductivity across the whole zone and a uniform proppant placement would be achieved in the perforations as well as in the annulus. High-efficiency frac gel using cross-linked HPG and a low damage one using HEC were compared to determine the best fluid to be used for these completions. Bottom hole pressures during treatment operations, as well as post-treatment pressure build-ups from each well, were analyzed in order to make general recommendations on this hydraulic fracture design.
- OSTI ID:
- 379639
- Report Number(s):
- CONF-950533-; TRN: IM9644%%95
- Resource Relation:
- Conference: Formation damage conference, The Hague (Netherlands), 15-16 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of European formation damage control conference: Proceedings; PB: 571 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of bottom hole pressures in 40 soft rock frac-pack completions in the Gulf of Mexico
Field experiences and guidelines for use of nonviscous fluids in frac-pack operations