公开(公告)号：US20170101824A1

公开(公告)日：2017-04-13

申请号：US15379690

申请日：2016-12-15

Applicant: SMITH INTERNATIONAL, INC.

Inventor： Nathan E. Fuller ,  R. Craig Boswell ,  Jacques Orban ,  Jonathan D. Marshall ,  Jordan D. Englund

IPC: E21B10/32 ,  E21B44/00 ,  E21B47/18 ,  E21B7/28 ,  E21B34/06

CPC classification number: E21B10/322 ,  E21B7/28 ,  E21B34/066 ,  E21B44/00 ,  E21B44/005 ,  E21B44/06 ,  E21B47/18

Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer may include a body having an axial bore extending at least partially therethrough. An electromagnetic activation system may be disposed at least partially within the bore of the body. A valve may be disposed within the bore of the body and coupled to the electromagnetic activation system. The valve may include a mobile element and a static element. The mobile element may be coupled to the electromagnetic activation system and move from a first position where the mobile element obstructs fluid flow through the valve to a second position where the mobile element permits fluid flow through the valve. A cutter block may be movably coupled to the body and move radially-outward as the mobile element moves from the first position to the second position.

公开(公告)号：US10947787B2

公开(公告)日：2021-03-16

申请号：US16244221

申请日：2019-01-10

Applicant: Smith International, Inc.

Inventor： Nathan E. Fuller ,  Jonathan D. Marshall ,  Jordan D. Englund ,  Jacques Orban ,  R. Craig Boswell

IPC: E21B10/32 ,  E21B44/00 ,  E21B34/06 ,  E21B44/06 ,  E21B7/28 ,  E21B47/18 ,  E21B7/128

Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer may include a body having an axial bore extending at least partially therethrough. An electromagnetic activation system may be disposed at least partially within the bore of the body. A valve may be disposed within the bore of the body and coupled to the electromagnetic activation system. The valve may include a mobile element and a static element. The mobile element may be coupled to the electromagnetic activation system and move from a first position where the mobile element obstructs fluid flow through the valve to a second position where the mobile element permits fluid flow through the valve. A cutter block may be movably coupled to the body and move radially-outward as the mobile element moves from the first position to the second position.

公开(公告)号：US20190145178A1

公开(公告)日：2019-05-16

申请号：US16244221

申请日：2019-01-10

Applicant: Smith International, Inc.

Inventor： Nathan E. Fuller ,  Jonathan D. Marshall ,  Jordan D. Englund ,  Jacques Orban ,  R. Craig Boswell

IPC: E21B10/32 ,  E21B44/06 ,  E21B7/28 ,  E21B44/00 ,  E21B34/06 ,  E21B47/18

Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer may include a body having an axial bore extending at least partially therethrough. An electromagnetic activation system may be disposed at least partially within the bore of the body. A valve may be disposed within the bore of the body and coupled to the electromagnetic activation system. The valve may include a mobile element and a static element. The mobile element may be coupled to the electromagnetic activation system and move from a first position where the mobile element obstructs fluid flow through the valve to a second position where the mobile element permits fluid flow through the valve. A cutter block may be movably coupled to the body and move radially-outward as the mobile element moves from the first position to the second position.

公开(公告)号：US10190368B2

公开(公告)日：2019-01-29

申请号：US15379690

申请日：2016-12-15

Applicant: SMITH INTERNATIONAL, INC.

Inventor： Nathan E. Fuller ,  R. Craig Boswell ,  Jacques Orban ,  Jonathan D. Marshall ,  Jordan D. Englund

IPC: E21B10/32 ,  E21B44/00 ,  E21B34/06 ,  E21B7/28 ,  E21B47/18 ,  E21B44/06

Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer may include a body having an axial bore extending at least partially therethrough. An electromagnetic activation system may be disposed at least partially within the bore of the body. A valve may be disposed within the bore of the body and coupled to the electromagnetic activation system. The valve may include a mobile element and a static element. The mobile element may be coupled to the electromagnetic activation system and move from a first position where the mobile element obstructs fluid flow through the valve to a second position where the mobile element permits fluid flow through the valve. A cutter block may be movably coupled to the body and move radially-outward as the mobile element moves from the first position to the second position.