The relationship of thickening time, gel strength, and compressive strength of oilwell cements

Journal Article · Sat Mar 01 04:00:00 EST 1986 · SPE (Society of Petroleum Engineers) Product. Eng.; (United States)

DOI:https://doi.org/10.2118/11205-PA· OSTI ID:5417952

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 greater than 48 Pa (100lbf/100 sq ft) gel strength is less than 20 minutes. Data presented show that times needed to develop a specific static gel strength are more closely related to the type of slurry than to thickening time. A calculation method is given for estimating shutdown factor from static-gel-strength data. New data confirm that 12- and 24-hour compressive strengths are not significantly reduced by reasonable increases in thickening time. The maximum single-stage cement interval without an unreasonable waiting-on-cement (WOC) time for specified compressive strength has been redefined in terms of interval temperature differences.

• Research Organization: Halliburton Services
• OSTI ID: 5417952
• Journal Information: SPE (Society of Petroleum Engineers) Product. Eng.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Product. Eng.; (United States) Vol. 1:2; ISSN SPENE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BUILDING MATERIALS
CALCULATION METHODS
CEMENTING
CEMENTS
COMPRESSION STRENGTH
DATA
DISPERSIONS
EXPERIMENTAL DATA
HARDENING
INFORMATION
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MEDIUM VACUUM
MIXTURES
NUMERICAL DATA
OIL WELLS
SLURRIES
SUSPENSIONS
TEMPERATURE EFFECTS
TESTING
THIXOTROPY
TIME MEASUREMENT
WELL COMPLETION
WELLS