Schlumberger Technology Corporation

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Bernadette Craster

Ashley Bernard Johnson

Stephen M Dershem

Ahmed Hammami

Scott Jacobs

Todd Yakimoski

Paul Reid

Jr Anthony Pearson

Gary L Rytlewski

Simon James

Iain Michael Cooper

Jonathan Stuart Phipps

Gerald Henry Meeten

Joseph Ayoub

Geoffrey Colin Maitland

Jean Desroches

Paul William Way

Roger Card

John Peter Crawshaw

Saad Bargach

Philippe Lacour-Gayet

Hemant Ladva

Terence George Balson

Timothy GJ Jones

Jiarong Wang

A technique facilitates construction of high temperature fiber reinforced polymer oilfield tubulars. The technique comprises a method of combining a fiber material and a high temperature thermoset resin to create a high performance composite material. The composite material is formed into an oilfield tubular that can be used in a variety of downhole applications. The method of combining the high performance materials with low modulus, high temperature coating materials during the manufacturing process produces composite tubular products that can survive prolonged exposure to deleterious well fluids in high temperature and high pressure downhole environments.

Fiber reinforced polymer oilfield tubulars and method of constructing same

An environmental mechanical test apparatus includes a pressure generation source and an isolation cylinder in fluid communication with the pressure generation source. The test apparatus further includes a pressure containment cell configured to receive a test specimen, an environmental chamber disposed about the pressure containment cell, and a load frame operably associated with the pressure containment cell. The pressure containment cell is in fluid communication with the pressure generation source and the isolation cylinder and includes a viewing window.

Environmental mechanical test apparatus

A technique distributes localized stress acting on a tubular. The tubular is formed with an inner layer and an outer layer that is compliant relative to the inner layer. A force distribution material is disposed between the inner layer and the outer layer to spread any concentrated loads acting against the tubular. The compliant nature of the outer layer causes it to distort against the force distribution material when acted on by a concentrated external load. The outer compliant layer and the force distribution material cooperate to isolate and protect the inner layer from displacements of the surrounding subterranean material.

Mitigation of localized stress in tubulars

The invention concerns a system or a method for maintaining zonal isolation in a wellbore. According to the invention, the system comprises, at a specific location along said wellbore, a sealing element, said sealing element being able to deform both during and after placement and is maintained after placement under compression through a pressurizing fluid or by confinement in a volume.

System and method for maintaining zonal isolation in a wellbore

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 water-based drilling fluid (WBM) comprises as additive a reaction product of a polyhydroxyalkane and alkylene oxide. The polyhydroxyalkane is desirably based on a monosacchoride, and is preferably sorbitol. The alkylene oxide may comprise ethylene oxide (EO), propylene oxide (PO) and/or butylene oxide (BO). Good results have been obtained with additives including Sorbitol&plus;18EO, Sorbitol&plus;9PO, Sorbitol&plus;4EO&plus;6BO, Sorbitol&plus;6EO&plus;6BO, or Sorbitol&plus;6BO. Drilling fluids in accordance with the invention have been found in laboratory tests to exhibit improved shale inhibition properties as compared with known polyol containing WBM, particularly in the absence of added potassium ions. This is environmentally advantageous.

Drilling fluid

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Edmonton, Canada

Bernadette Craster