Halliburton Energy Services, Inc.

Morris Wayne Cox

Philip D Nguyen

Jiten Chatterji

Ronald Glen Dusterhoft

Travis Thomas Hailey, Jr

Tommy Frank Grigsby

Tommie Austin Freeman

Floyd Randolph Simonds

Sanjay M Vitthal

Alex Procyk

Jackie M LaFontaine

R Ashley Donaldson

John R Podowski

Terry Michael Dailey

An apparatus and method for completing an interval of a wellbore while drilling comprises a drill string () having a drill bit () mounted on the lower end thereof. A completion assembly () is positioned around a section of the drill string () such that when the wellbore () is extended by rotating the drill bit () and advancing the drill string (), the completion assembly () does not rotate. The advancement of the drill string () and rotation of the drill bit () is ceased when the completion assembly () has reached the desired interval of the wellbore (). Thereafter, the drill string () is disconnected from the drill bit () for retrieval to the surface leaving the completion assembly () and the drill bit () downhole.

Apparatus and method for completing an interval of a wellbore while drilling

A multi-zone screenless well fracturing method and apparatus which allows multiple zones in a well to be treated with one trip of the apparatus into the hole. The apparatus includes a tool string generally comprising a crossover, a packer below the crossover, and a concentric wash pipe extending below the packer. The crossover has a first portion in communication with a tubing string connected thereto and a second portion in communication with a well annulus above the packer. The first portion of the crossover is in communication with the inner wash pipe, and the second portion of the crossover is in communication with the outer wash pipe. The tool string is adapted to stab through a plurality of big bore casing packers which are positioned between adjacent zones. A method of fracturing multiple zones in a well while monitoring conditions at the zone is also disclosed.

Multi-zone screenless well fracturing method and apparatus

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McKinney, TX, United States of America

Morris Wayne Cox