The relationship of thickening time, gel strength, and compressive strengths of oil well cements

Conference · Wed Sep 01 04:00:00 EDT 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5396273

Sabins, F L; Sutton, D L

A previous investigation of the effect of thickening times on early compressive strength and gel strength development has been expanded to include a wider range of well conditions, a greater variety of slurry types, and a more thorough evaluation of static gel strength. No positive relationship between thickening time and the onset or the rate of static gel strength development could be found. With few exceptions all slurries tested developed values of greater than 48 Pa (100 lbs/100 ft/sup 2/) gel strength in less than 20 minutes. Data presented shows times to develop a specific static gel strength is more closely related to type of slurry than to thickening time length. A calculation method is given for estimating shut down factor from static gel strength data. New data confirms that 12 and 24 hour compressive strengths are not significantly reduced by reasonable increases in thickening time. The maximum length of single stage cement interval without unreasonable waiting on cement times for specified compressive strength has been redefined in terms of interval temperature differences.

• Research Organization: Haliburton Services
• OSTI ID: 5396273
• Report Number(s): CONF-820927-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE11205
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
36 MATERIALS SCIENCE
360600 -- Other Materials
BUILDING MATERIALS
CALCULATION METHODS
CEMENTING
CEMENTS
COMPRESSION STRENGTH
CURING
DISPERSIONS
GELATION
MATERIALS
MECHANICAL PROPERTIES
MIXTURES
OIL WELLS
SLURRIES
SUSPENSIONS
TIME DEPENDENCE
WELLS