Patent Number: 6,305,469

Title: Method of creating a wellbore

Abstract: A method of creating a wellbore in an earth formation, the wellbore including a first wellbore section and a second wellbore section penetrating a hydrocarbon fluid bearing zone of the earth formation, is provided. The method comprises drilling the first wellbore section, arranging a remotely controlled drilling device at a selected location in the first wellbore section, from which selected location the second wellbore section is to be drilled, and arranging a hydrocarbon fluid production conduit in the first wellbore section in sealing relationship with the wellbore wall, the conduit being provided with fluid flow control means and a fluid inlet in fluid communication with said selected location. The drilling device is operated to drill the second wellbore section whereby during drilling of the drilling device through the hydrocarbon fluid bearing zone, flow of hydrocarbon fluid from the second wellbore section into the production conduit is controlled by the fluid flow control means.

Inventors: Coenen; Josef Guillaume Christoffel (Rijswijk, NL), Maekiaho; Leo Bernhard (Rijswijk, NL)

Assignee: Shell Oil Company

International Classification: E21B 23/14 (20060101); E21B 7/00 (20060101); E21B 23/00 (20060101); E21B 21/00 (20060101); E21B 21/10 (20060101); E21B 4/18 (20060101); E21B 4/00 (20060101); E21B 43/12 (20060101); E21B 007/00 ()

Expiration Date: 10/23/2018