Formation squeeze monitor apparatus

Details Formation squeeze monitor apparatus Formation squeeze monitor apparatus

1991-02-06

1992-04-21

Dang, Hoang C.

Wells

Processes

With indicating, testing, measuring or locating

73784, 166113, 166187, 166191, E21B 4900

Patent

active

051058812

ABSTRACT:
A fluid squeeze monitor downhole tool and a method of monitoring formation squeeze features a tool body that can be placed downhole at a desired elevational location to produce a controlled, localized reduction of pressure head and measure the resultant inward displacement of the borehole wall. The reduction in head is accomplished by draining the fluid in a bladder (or collapsible container) located on the tool body into a reservoir "sump" that is incorporated into the downhole tool.

REFERENCES:
patent: 2957341 (1960-10-01), Menard
patent: 3442123 (1969-05-01), Broise
patent: 3858441 (1975-01-01), Comeau
patent: 4236113 (1980-11-01), Wiley
patent: 4453595 (1984-06-01), Lagus et al.
patent: 4491022 (1985-01-01), de la Cruz
patent: 4719803 (1988-01-01), Capelle et al.
Fernandez et al., "Interpretation of a Long-Term In Situ Borehole Test in a Deep Salt Formation", Bull. of Assoc. of Engr. Geologists, vol. XXI, No. 1, pp. 23-38, 1984.
Nelson et al., "In Situ Testing of Salt in a Deep Borehole in Utah", The Mechanical Behavior of Salt, Proc. of First Conf., Trans Tech Publications, pp. 493-510, 1984.

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