Cement monitoring method

Details Cement monitoring method Cement monitoring method

1977-03-25

1978-10-17

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With anchoring of structure to marine floor

166253, 324 65P, 405227, E02B 1700

Patent

active

041201663

ABSTRACT:
A method for monitoring the location and set of a cement slurry within a support member of an offshore structure is disclosed. The location and setting properties of the cement are determined by monitoring the electrical resistivity of the fluid within the support member. Preferably, a plurality of electrical probes mounted along the length of the support member can be used to measure the electrical resistivity of fluid within the member. Normally, the presence of cement would be indicated by an abrupt change of resistivity as the cement displaces the original fluid (air or sea water) present in the support member. Resistivity of the cement slurry will also change gradually as the cement sets.

REFERENCES:
patent: 2068535 (1937-01-01), Crandall
patent: 2171840 (1939-09-01), Armentrout et al.
patent: 3319158 (1967-05-01), McDoulett et al.
patent: 3489219 (1970-01-01), Higgins
patent: 3878687 (1975-04-01), Tragesser
patent: 3987636 (1976-10-01), Hruska et al.

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