公开(公告)号：US11377927B2

公开(公告)日：2022-07-05

申请号：US17261266

申请日：2019-07-15

Applicant: SHELL OIL COMPANY

Inventor： Frank Ruckert

IPC: E21B33/14 ,  E21B47/005 ,  E21B43/10 ,  E21B43/117

Abstract: An energetics device is employed to create an outwardly directed pressure wave at a selected depth within a wellbore tubular cemented into a wellbore. The pressure wave causes the wellbore tubular to plastically deform at the selected depth. This locally expands the wellbore tubular at the selected depth, whereby a circumferential recess is created into an inner surface of the wellbore tubular and whereby the outer surface of the wellbore tubular is forced into the surrounding cement sheath at the selected depth. Microcavities and/or micro annuli in the impacted zone may be sealed as a result.

公开(公告)号：US11359455B2

公开(公告)日：2022-06-14

申请号：US17251319

申请日：2019-06-07

Applicant: SHELL OIL COMPANY

Inventor： Frank Ruckert ,  Walter Stam

IPC: E21B33/14 ,  E21B17/10

Abstract: An elastomer sleeve is applied to a wellbore tubular. The elastomer sleeve, which defines a circumference around longitudinal bore in a longitudinal direction, is brought in an elastically stretched condition by applying a stretching force to the elastomer sleeve. While the elastomer sleeve is kept in the elastically stretched condition, it is moved in the longitudinal direction over the wellbore tubular to a selected position on the wellbore tubular whereby the wellbore tubular extends through the bore. The elastomer sleeve is then snuggly fitted to an outside surface of the wellbore tubular by relaxing the elastically stretching force. The thus prepared wellbore tubular may be lowered into a wellbore in the Earth, and cement may be pumped on the outside of the wellbore tubular to form a cement sheath which fully surrounds the elastomer sleeve.

公开(公告)号：US09796877B2

公开(公告)日：2017-10-24

申请号：US14779697

申请日：2014-03-21

Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. ,  SHELL OIL COMPANY

Inventor： Erik Kerst Cornelissen ,  Gerbrand Jozef Maria Van Eijden ,  Frank Ruckert ,  Wouter Besijn

IPC: C09D183/04 ,  C09D5/00 ,  E21B17/00 ,  B05D1/28 ,  C09D175/04

CPC classification number: C09D183/04 ,  B05D1/28 ,  C09D5/00 ,  C09D175/04 ,  E21B17/00

Abstract: The invention concerns a method of applying a coating in a liquid state to wellbore tubing, such as threaded connector parts or casing sections, before running the tubing downhole. The coating only cures while running downhole. The coating is an elastic curable coating composition, comprising a curable elastic thermosetting resin, a curing agent and a water-absorbing expansion agent. During make-up of a connector, the liquid coating composition acts as lubricant. When cured, the coating will swell when contacted with a wellbore fluid to ensure leak-tightness.