LOW VELOCITY FOAM FLUSH DRILLING

The author gives a brief account of the use of foam in removing cuttings from a borehole during drilling. The system gives low up-hole velocity, retains cuttings in suspension without the need for a dense liquid, utilizes only low volumes of water and compressed air and employs a flushing medium that resists percolation into porous or fissured zones. Details are given of the equipment and method of operation. The foam mixture and wall-stabilising polymer additives generally necessary are described and it is noted that both are completely non-toxic and biodegradable. /TRRL/

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Authors:
    • England, B
  • Publication Date: 1976-4

Media Info

  • Features: Figures; References;
  • Pagination: p. 24-25
  • Serial:
    • GROUND ENGINEERING
    • Volume: 9
    • Issue Number: 3
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00147636
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: Jun 22 1977 12:00AM