US 5,325,709 AGranted

Measurement, calibration and probe storage apparatus for measuring pH of fluids and slurries

AssigneeHalliburton Company

InventorC. Lynden Lee

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Abstract

A measurement/calibration/probe storage apparatus particularly suitable for measuring pH of fluids and slurries used in the treatment of oil and gas wells. The apparatus includes an enclosure having a conduit for the conveyance of a fluid or slurry therein, a flow chamber being in fluid communication with the conduit, a probe sensor for measuring a preselected attribute of a fluid, or slurry, residing within, or, passing through the flow chamber. The apparatus further includes an electronic processor in electrical communication with the probe sensor for calculating and providing a display of the attribute being measured and a calibration chamber being configured to receive the probe sensor. At least one calibration fluid container being in fluid communication with the calibration chamber is also provided. A control valve is provided for controlling the flow of fluid from each calibration fluid container into the calibration chamber and for controlling the draining of the calibration chamber.

Claims12

Dependent claims

A measurement, calibration and probe storage apparatus for use in connection with the protection of oil and gas comprising:

a) a rigid, protective, mountable, enclosure having a conduit means routed therethrough for the conveyance of at least one of a fluid, a slurry and mixture thereof;
b) a cylindrical flow chamber being configured to accommodate a removable probe sensor means therein and a removable dust cap thereon, the flow chamber being in fluid communication with the conduit;
c) at least one removable dip probe sensor means for measuring a preselected attribute of said at least one of a fluid, a slurry, and mixture thereof, in which the probe sensor is immersed;
d) an electronic processor means in electrical communication with the probe sensor for calculating and rendering a value of the attribute being measured;
e) a cylindrical probe sensor storage and calibration chamber being proximal to the flow chamber, adapted to accommodate the removable probe sensor therein and a removable dust cap thereon, the storage and calibration chamber further having a drain tube and an overfill tube, both being in fluid communication with the storage and calibration chamber, the drain tube being selectively controlled by a multi-position control valve means;
f) a dust cap being configured to be accommodated by the flow chamber and the storage and calibration chamber;
and
g) a control valve means for selectively controlling the filling of the storage and calibration chamber from at least one calibration fluid reservoir, and for the draining of the calibration chamber.

5 more elements

A pH measurement, calibration and probe storage apparatus for use in connection with the production of oil and gas comprising:

a) a protective, mountable, steel rectangular enclosure having mounting tabs and a front access panel and having a conduit means routed therethrough for the conveyance of at least one of a fluid, a slurry, and mixture thereof;
b) a cylindrical flow chamber being configured to accommodate a removable probe sensor means therein and a removable dust cap thereon, the flow chamber being in fluid communication with the conduit;
c) a shut-off valve being located in the conduit means upstream of the flow chamber;
d) at least one removable dip probe sensor means for measuring the pH of at least one of a fluid, a slurry, and mixture thereof, in which the probe sensor is immersed, and the probe sensor means being provided with a means for shielding the probe sensor from particles and abrasives that may be present within the at least one of a fluid, a slurry, and mixture thereof, being measured;
e) an electronic processor means in electrical communication with the probe sensor for calculating and rendering a value of the attribute being measured and the electrical processing means including an output means for recording measurements and including an input connection for connecting auxiliary power means;
f) a cylindrical probe sensor storage and calibration chamber being adapted to accommodate the removable probe sensor therein and a removable dust cap thereon, the storage and calibration chamber further having a drain tube and an overfill tube, both being in fluid communication with the storage and calibration chamber, the drain tube being selectively controlled by a multi-position control valve means;
g) a dust cap being configured to be accommodated by the flow chamber and the storage and calibration chamber;
and
h) a multi-position control valve means for selectively controlling the filling of the storage and calibration chamber from at least two calibration fluid reservoirs, and for the draining of the calibration chamber.

6 more elements

Dependencies are inferred from the claim text.