US 9,638,375 B2 · Arrangement for sand collection

Abstract

The present invention regards a subsea sand handling system for limiting abrasion of specific subsea equipment (5), comprising an inlet (10) connectable to a sand separation system (2) upstream of the specific equipment (5) and an outlet (18, 22) connectable to a pipeline (6) downstream of the specific equipment (5), wherein it comprises at least two collection vessels (11,14) and means for flushing (16,17,19,21) the sand out of at least one of the collection vessels (11,14), and the vessels (11,14) and the means for flushing (16,17,19,21) the sand out of said vessels (11,14) are configured such that sand is flushed from one vessel (11,14) while sand is collected in the other vessel (14,11). The present invention also regards a method for limiting abrasion of subsea rotating equipment.

Claims15

Dependent claims

A subsea sand handling system for limiting abrasion of specific subsea equipment, comprising:

an inlet connectable to a sand outlet of a sand separation system located upstream of the specific equipment;
an outlet connectable to a pipeline downstream of the specific equipment;
at least two collection vessels connected between the inlet and the outlet;
and
means for flushing sand out of one of the collection vessels and into the outlet while at the same time sand passing through the inlet is collected in the other collection vessel;
wherein at least a part of each vessel is configured to be rotatable about an axis, such that in one position one of the vessels is in connection with the sand separation system and in a second position that vessel is in connection with the flushing means.

3 more elements

A subsea sand handling system for use in connection with a subsea system component, the sand handling system comprising:

an inlet which is connected to a sand outlet of a sand separation system located upstream of the component;
an outlet which is connected to a pipeline located downstream of the component;
and
at least two collection vessels which are connected between the inlet and the outlet;
wherein in operation of the sand handling system sand from the sand separation system is conveyed through the inlet into one of the collection vessels while at the same time sand in the other of the collection vessels is conveyed through the outlet and into the pipeline;
wherein the inlet is connected to a first of the collection vessel, the outlet is connected to a second of the collection vessels, and the system further comprises a connection member which connects the first vessel to the second vessel and through which sand in the first vessel is transferred into the second vessel.

3 more elements

Dependencies are inferred from the claim text.

Arrangement for sand collection

Life of this patent

Arrangement for sand collection

Life of this patent

Abstract

Claims15