Shell Oil Comapny

Wilhelmus Christianus Lohbeck

Martin Donnelly

Cornelis Jan Kenter

Jacobus Hendrikus Emmen

Brent Reynolds Ross

Allan James Samuel

Paulus Hermanus Reijnen

Djurre Hans Zijsling

Robert Nicholas Worrall

Robert Bruce Stewart

Paul Dirk Schilte

Paul R Choate

Jacobus Petrus Van Vliet

Daljit Singh Gill

A method of expanding a tubular element is provided, the tubular element having a first portion to be expanded to a first inner diameter and a second portion to be expanded to a second inner diameter larger than the first inner diameter. The method comprising:

Expanding a tubular element to different inner diameters

A deformable well screen for preventing migration of solid particles into a hydrocarbon production well is disclosed, the screen including at least one substantially tubular filter layer of which the sieve opening size remains fairly constant during or after expansion and/or other deformation of the screen. Optionally the screen also includes a series of circumferentially scaled filter segments that are arranged around an expandable slotted tube, an expandable slotted tube of which the slots are filled with resin coated granules, an expandable slotted tube with micro-slots, an assembly of woven metal wire screens that are sintered together and/or a synthetic geotextile fabric.

Deformable well screen

Connector assembly for an expandable slotted pipe

A deformable well screen for preventing migration of solid particles into a hydrocarbon production well is disclosed, the screen including at least one substantially tubular filter layer of which the sieve opening size remains fairly constant during or after expansion and/or other formation of the screen. Optionally the screen also includes a series of circumferentially scaled filter segments that are arranged around an expandable slotted tube, an expandable slotted tube of which the slots are filled with resin coated granules, an expandable slotted tube with micro-slots, an assembly of woven metal wire screens that are sintered together and/or a synthetic geotextile fabric.

The invention relates to a method of creating a casing in a borehole formed in an underground formation. The method comprises the steps of (a) installing a tubular liner in the borehole, the liner being radially expandable in the borehole whereby the liner in its radially expanded position has a plurality of openings which are overlapping in the longitudinal direction of the liner, (b) radially expanding the liner in the borehole, and (c) either before or after step (b), installing a body of hardenable fluidic sealing material in the borehole so that the sealing material fills said openings and thereby substantially closes said openings. The sealing material is selected so as to harden in said openings and thereby to increase the compressive strength of the liner.

Method of creating a casing in a borehole

Method of completing an uncased section (10) of a borehole (1) in an underground formation (2) comprising the steps of:

Method of completing an uncased section of a borehole

A method of creating a wellbore in an underground formation is provided. A borehole is drilled in the underground formation, whereafter a casing of a ductile material is lowered into the borehole. The casing is selected to have a smaller elastic radial deformation than the surrounding formation when the casing is radially expanded against the borehole wall by application of a radial force to the casing. Said radial force is applied to the casing so as to radially expand the casing against the borehole wall thereby inducing a plastic radial deformation of the casing and an elastic radial deformation of the surrounding underground formation, whereafter the radial force is removed from the casing.

Growing community of inventors

Rijswijk, Netherlands

Wilhelmus Christianus Lohbeck