公开(公告)号：EP1910231A2

公开(公告)日：2008-04-16

申请号：EP06771616.7

申请日：2006-05-30

Applicant: Rattler Tools, Inc. ,  Ruttley, David J.

Inventor： Rattler Tools, Inc. ,  Ruttley, David J.

IPC: C02F1/48

CPC classification number: B03C1/284 ,  B03C1/286 ,  B03C2201/18 ,  B03C2201/28 ,  C02F1/488 ,  C02F2301/024 ,  E21B21/065

Abstract: A cleanout system and method for removal of metal debris from a fluid flow, such a flow of re-circulated drilling mud employs one or more magnetic unit positioned in the path of the fluid for collecting metal particles from the flow. The magnetic unit has a removable magnet core positioned in a non-magnetic sleeve. When the core is removed from the sleeve the attracted metal particles are allowed to drop from the sleeve under gravity to facilitate their collection and disposal. A fluid deflector is positioned upstream from each magnetic unit, protecting the magnetic unit from direct impact by the strong flow. The magnetic units are allowed to pivot from side-to-side and adjust their position in the flow.

公开(公告)号：EP1373676B1

公开(公告)日：2006-09-06

申请号：EP01948400.5

申请日：2001-06-15

Applicant: Rattler Tools, Inc.

Inventor： RUTTLEY, David, J.

IPC: E21B21/00 ,  E21B10/00 ,  E21C25/04 ,  E21B31/06

CPC classification number: E21B37/00 ,  E21B31/06 ,  E21B41/00

Abstract: A tool for retrieving metal debris from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body (10). Each magnet assembly has a magnet member (42), which forms a primary debris settling area (70). Each magnet member is protected by a magnet protector. A secondary debris settling area is formed between a magnet and an adjacent magnet protector to allow utilization of the residual magnetic force created by the magnet members. The secondary settling area occupies at least half of the surface area of the primary settling area.

公开(公告)号：EP1373676A1

公开(公告)日：2004-01-02

申请号：EP01948400.5

申请日：2001-06-15

Applicant: Rattler Tools, Inc.

Inventor： RUTTLEY, David, J.

IPC: E21B21/00 ,  E21B10/00 ,  E21C25/04

CPC classification number: E21B37/00 ,  E21B31/06 ,  E21B41/00

Abstract: A tool for retrieving metal debris from a wellbore has a plurality of magnet assemblies spaced longitudinally along a tool body (10). Each magnet assembly has a magnet member (42), which forms a primary debris settling area (70). Each magnet member is protected by a magnet protector. A secondary debris settling area is formed between a magnet and an adjacent magnet protector to allow utilization of the residual magnetic force created by the magnet members. The secondary settling area occupies at least half of the surface area of the primary settling area.