Patent ID: 11913323
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A desander assembly retrievably positionable in a tubing string, comprising:
a fishing neck;
a bypass tool having an internal bore and at least one aperture, the bypass member connected to the lower end of the fishing neck;
a spring positioned between the fishing neck and the bypass tool to permit reciprocating movement of the fishing neck relative to the bypass tool;
a stop assembly connected to the bypass tool, the stop assembly configured to retrievably mate with a portion of the tubing string;
an outer tubular member having an upper end, a lower end, and a sidewall defining a bore extending between the upper end and the lower end, the outer tubular member having at least one aperture extending therethrough in fluid communication with the bore, the upper end of the outer tubular member connected to the stop assembly; and
an inner tubular member with an upper end, a lower end, and a sidewall defining a bore extending between the upper end and the lower end, the upper end of the inner tubular member connected to the stop assembly with the inner tubular member positioned in the outer tubular member to form an annulus and so the bore of the inner tubular member is in fluid communication with the bypass tool, the inner tubular member having at least one spiral protrusion extending outwardly from the sidewall to cooperate with an interior side of the outer tubular member to form a spiral channel,
wherein the bore of the inner tubular member receives reservoir fluid that passes into the annulus formed between the inner tubular member and the outer tubular member via the apertures of the outer tubular member, the reservoir fluid guided downwardly into the spiral channel so the spiral channel induces a cyclonic flow, which causes heavier particles to be forced outwardly and to fall to the lower end of the funnel section, the separated fluid flows into the bore of the inner tubular member via the lower end of the inner tubular member so the fluid continues to travel up through the bore of the inner tubular member and exit from the bypass tool.