Method for pipeline filtration

Details Method for pipeline filtration Method for pipeline filtration

2005-01-11

2005-01-11

EL-Arini, Zeinab (Department: 1746)

Cleaning and liquid contact with solids

Processes

Using solid work treating agents

C134S010000, C015S003510, C015S104050, C015S104061, C015S104062, C015S210100, C015S232000

Reexamination Certificate

active

06841007

ABSTRACT:
A method for cleaning a pipline by providing a filter or a number of filters adapted to reside in the pig launcher of the pipeline. The filters can be used to remove debris and impurities from the fluid flowing in the pipeline during a pigging operation. Alternatively, the filters may be retained in the pig launcher for extended periods of time.

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patent: 4316802 (1982-02-01), Howell
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patent: 5223136 (1993-06-01), Gilbert
patent: 5980645 (1999-11-01), Price
patent: 5992643 (1999-11-01), Scrogham et al.
patent: 6001242 (1999-12-01), England et al.
patent: 6177010 (2001-01-01), Schamel et al.

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