Schlumberger Technology Corporation

Saad Bargach

Oliver Clinton Mullins

Gary L Rytlewski

Christopher Del Campo

Simon James

Iain Michael Cooper

Jean-Michel Hache

Gerald Henry Meeten

Ahmed Hammami

Soraya Sofia Betancourt

Ashley C Kishino

Joseph Ayoub

Lennox Reid

Jean Desroches

Scott Jacobs

Bernadette Craster

Philippe Lacour-Gayet

Methods and tools are described to reduce sanding including the steps of fracturing the cement sheath in a localized zone around the casing and having the fractured zone act as sand filter between the formation and openings in the casing, with the openings being best pre-formed but temporarily blocked so as to allow a conventional primary cementing of the casing. The fracturing step can also be used for remedial operation to reopen blocked formation or screens.

Methods and apparatus for completing a well

A marking system and method for a well site sample is provided. The system includes a container for collecting the well site sample, a marker applied to the container and a scanner adapted to read the marker. Data may be uploaded to and/or downloaded from the marker.

Marking system and method

Method, apparatus and systems for drilling wells, such as for production of petroleum products and ensuring efficient well drilling and protection of well drilling systems during drilling operations. A closed-loop drilling control system, including a digital switching control regulator (SCR) module is provided for automated actuation of selected drilling rig controls responsive to downhole and surface measurements of drilling parameters. The closed-loop drilling control system is responsive to digital data from a measuring-while-drilling (MWD) tool for refining the drilling controls by automated correction of driller inputs to the drilling controls of the well drilling system during drilling operations. The downhole data, such as surface weight on bit, downhole weight on bit, pressure and flow rate of downhole drilling fluid hydraulics, etc. is transmitted by MWD telemetry to a digitally controlled switching control regulator (SCR) module via an interfacing computer and utilized to refine the drilling controls by automated downhole data responsive correction of driller inputs to the drilling controls of the well drilling system.

Drilling rig closed loop controls

Growing community of inventors

Houston, TX, United States of America

Saad Bargach