Connector valve assembly for inflatable packer device

Patent · Tue Feb 25 00:00:00 EST 1986

OSTI ID:5997951

Larson, R E; Nelson, D K; Mathison, A D

This patent describes a method for interiorly testing the walls of a pipe with an inflatable packer device having a two component grouting system and a three hose input system for transferring the two grouting components and a test media fluid. The method consists of: (a) providing an inflatable packer device in a pipeline section to be tested, the packer device having two chemical component input lines and being communicatable to external feeding lines having a test media line and two chemical component input lines, (b) inserting a connector valve assembly between the inflatable packer device and the external input lines, the connector valve assembly comprising; (1) a first chemical conduit having an actuable valve means and connector means at opposite ends for the controlled flow of a first chemical component, (2) a second chemical conduit having actuatable valve means and connector means at opposite ends for the controlled flow of a second chemical component, (3) valve actuating means to simultaneously actuate the valve means in the first and second chemical conduits, the valve actuating means being actuated by the controlled flow communication within the second chemical conduit at a location before its actuatable valve, and (4) a test media conduit having a check valve therein and a connector means at one end for the transfer of a testing fluid, the test media conduit being in communication at its opposite end to the second chemical conduit at a location after its actuatable valve, (c) expanding the packer device within the pipeline portion to be tested, (d) activating the test media line through the second chemical component input line, and (e) measuring the back pressure exerted on the inflated packer to determine leakage in the pipeline portion.

• Assignee: Cherne Industries, Inc., Minneapolis, MN
• Patent Number(s): US 4572228
• OSTI ID: 5997951
• Resource Relation: Patent File Date: Filed date 24 Dec 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
NATURAL GAS
TRANSPORT
PETROLEUM
PIPELINES
LEAK TESTING
FLUID FLOW
INFLATABLE SEALS
LEAK DETECTORS
LEAKS
PACKINGS
PRESSURE MEASUREMENT
VALVES
WALLS
CONTROL EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
SEALS
TESTING
022000* - Petroleum- Transport
Handling
& Storage
032000 - Natural Gas- Transport
Handling
& Storage