Leak detection system and control using non-rigid bladder
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.
- Assignee:
- IFI; EDB-81-072270
- Patent Number(s):
- US 4232736
- OSTI ID:
- 6382543
- Resource Relation:
- Patent File Date: Filed date 23 Oct 1978
- Country of Publication:
- United States
- Language:
- English
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SEALING LARGE-DIAMETER CAST-IRON PIPE JOINTS UNDER LIVE CONDITIONS