Wells – Automatic
Patent
1978-10-23
1980-11-11
Purser, Ernest R.
Wells
Automatic
137312, 166 75R, 285 93, E21B 4312
Patent
active
042327369
ABSTRACT:
A portable system for early detection of leaks from suspect piping fittings, for example, as used on the "Christmas tree" portion of a gas well provides an encapsulating bladder which sealably encapsulates the suspect fitting and collects leaks from the fitting. The apparatus provides, in the preferred embodiment, a bladder which can encase any suspect portion of the Christmas tree (or like piping system), such as for example, the choke jacket or other like fittings where maximum turbulence occurs as when gas or oil mixed with sand flows through the fitting. In the preferred embodiment, the collection of a leak within the bladder causes a regulator to operate a control valve and halt the flow of gas, oil, or like flowing material through the piping system of which the suspect fitting is a part. The system can be applied to any other similar existing and operating piping arrangement where the detection of leaks from suspect fittings is desirable. The portable bladder and shut off arrangement of the present invention has particular application in the offshore oil and gas industry, where it can perform a safety function on unmanned gas/oil well platforms.
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patent: 3921437 (1975-11-01), Hauk
patent: 3975945 (1976-08-01), Hauk et al.
patent: 3996789 (1976-12-01), Wilson
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patent: 4106428 (1978-08-01), Matthiessen
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