公开(公告)号：US20180195371A1

公开(公告)日：2018-07-12

申请号：US15740096

申请日：2016-06-28

Applicant: SHELL OIL COMPANY

Inventor： Cornelus Josef CASTELEIN ,  Antonius Leonardus Maria WUBBEN ,  Djurre Hans ZIJSLING

IPC: E21B43/10

CPC classification number: E21B43/105 ,  E21B43/108

Abstract: A method for expanding a lower bell section of an expandable tubular to a larger diameter than upper parts thereof utilizes an expandable bell cone (1) with circumferentially spaced segments (2) that expand in response to axial force and automatically retract in response to removal of the axial force, wherein gaps (A) are present between the expanded segments (2) and the tailends (2A) at the gauge of the segments are slightly skewed to mitigate the effect of the gaps (A) on the flattening of the expanded bell sections between the segments (2).

公开(公告)号：US20180187527A1

公开(公告)日：2018-07-05

申请号：US15740189

申请日：2016-06-28

Applicant: SHELL OIL COMPANY

Inventor： Remmelt BOUMA ,  David Paul BRISCO ,  Antonius Leonardus Maria WUBBEN ,  Tino Walter VAN DER ZEE ,  Djurre Hans ZIJSLING

IPC: E21B43/10 ,  E21B23/02 ,  E21B17/10

CPC classification number: E21B43/105 ,  E21B17/1014 ,  E21B23/02

Abstract: The functionality of a downhole tubular expansion tool is switched by: -providing the unexpanded tubular with an oversized section (7) having a larger internal width than other (non-oversized) sections of the unexpanded tubular (6);-providing the expansion tool with a control sub (1) comprising a trigger assembly (2) that is pushed outward within the oversized section and thereby switches the functionality of the tool, for example by contracting or expanding a collapsible expansion cone and/or opening a valve.

公开(公告)号：US20180187526A1

公开(公告)日：2018-07-05

申请号：US15740091

申请日：2016-06-28

Applicant: SHELL OIL COMPANY

Inventor： Djurre Hans ZIJSLING

IPC: E21B43/10 ,  E21B17/14 ,  E21B29/10

CPC classification number: E21B43/105 ,  E21B17/14 ,  E21B29/10 ,  E21B33/1243 ,  E21B43/108

Abstract: A well tubular is expanded using an expandable segmented cone (301-303) which is at a large diameter bottom or gauge section of the cone (301-303) provided with a robust sealing assembly (300A-C) comprising a sealing ring or sealing lips that engage(s) an expanded section of the tubular (307).

公开(公告)号：US20180187525A1

公开(公告)日：2018-07-05

申请号：US15740081

申请日：2016-06-28

Applicant: SHELL OIL COMPANY

Inventor： Djurre Hans ZIJSLING

IPC: E21B43/10

CPC classification number: E21B43/105 ,  E21B23/01 ,  E21B29/00 ,  E21B33/12 ,  E21B43/103

Abstract: The upward force exerted on an expansion cone (2), which is pulled up by a drill string (3) to expand a well tubular (1), is hydraulically enhanced by:—connecting a bottom plug (10) to a carrier body (11) below the expansion cone (2);—lowering the drill string (3), cone (2), carrier body (11), bottom plug (10) and unexpanded well tubular (1) assembly into a well;—inducing the drill string (3) to pull the expansion cone (2) through a lower edge (13) of the unexpanded well tubular (1) to expand said edge (13) and to subsequently pull the bottom plug (10) into sealing engagement with the expanded edge (13);—releasing the bottom plug (10) from the carrier body (11);—further pulling (F1) the expansion cone (10) through the well tubular (1) and simultaneously injecting fluid through the drill string (3) below the cone (2) to hydraulically increase (F2) the upward force (F=F1+F2) exerted on the expansion cone (2).

公开(公告)号：US20180119504A1

公开(公告)日：2018-05-03

申请号：US15855153

申请日：2017-12-27

Applicant: SHELL OIL COMPANY

Inventor： Antonius Leonardus Maria WUBBEN ,  Tino Walter VAN DER ZEE ,  Djurre Hans ZIJSLING

IPC: E21B23/01 ,  E21B43/10

CPC classification number: E21B23/01 ,  E21B43/103 ,  E21B43/105

Abstract: A to be expanded tubular (4) can be locked to a previously installed host casing (2) using a self energizing top anchor (SETA) tool. This SETA tool has an anchoring section with a set of anchoring slips (1), and a centralizer which is connected to the body of the anchoring section. The anchoring slips (1) engage the host casing (2) once an expansion cone (3) presses the tubular against the shoulder of the centralizer. The SETA tool is further provided with a guide nose (7) to which a force transmission sub (8) is connected.

公开(公告)号：US20170204683A1

公开(公告)日：2017-07-20

申请号：US15398501

申请日：2017-01-04

Applicant: SHELL OIL COMPANY

Inventor： Can ALTUNLU ,  Wissam ASSAAD ,  Djurre Hans ZIJSLING

IPC: E21B17/06 ,  E21B43/10

CPC classification number: E21B17/06 ,  E21B43/105

Abstract: A low break out screw threaded safety joint for releasably connecting a Bottom Hole Assembly (BHA) of a well tubular expansion assembly to a drill string comprises a pair of intermeshing TOothed MAte (TOMA) rings (24) with intermeshing sawtooth profiles (25,26) teethed profiles that have a low break out performance upon reverse rotation of the drill string relative to the BHA, which may be stuck within the wellbore.