Wells – Processes – Cleaning or unloading well
Patent
1998-05-13
2000-12-12
Lillis, Eileen D.
Wells
Processes
Cleaning or unloading well
1661051, 166107, 166 99, 166162, 166 53, E21B 2700
Patent
active
061585122
ABSTRACT:
A sand removing apparatus which is intended to be used in the lower area of underwater wells and is suspended from the end of a pipe string, includes a container having a closeable inlet for allowing a flow of liquid accompanied by sand thereinto. The container has a separate outlet assigned a suction side of a pump constituting the drive device for the apparatus. The drive device is kept going until a degree of filling of the container has been achieved. Between a separate inlet provided with a one-way valve and the separate outlet, a filter is disposed, so that sand remains in the container while the carrier liquid exits the container. In one embodiment, the drive device is a liquid-driven jet jump.
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Kreck John
Lillis Eileen D.
Testtech Services AS
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