E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/13 (2006.01) C04B 28/24 (2006.01) C09K 8/02 (2006.01) C09K 8/04 (2006.01) C09K 8/20 (2006.01) C09K 8/46 (2006.01)
Patent
CA 2307105
Drilling fluids are designed for drilling and cementing through shallow water flows and unconsolidated formations. Such drilling fluids utilize hollow microspheres to increase the volume of the drilling fluid without adding too much weight to the drilling fluid. The drilling fluid is also designed to employ an admixture of silicate, high surface area fibrous material, deformable graphite particles, and an activatable cementitious material to stabilize unconsolidated formations and form a tough filter cake that will bond with the cement casing.
L'invention concerne des boues de forage conçues pour réaliser un forage et une cimententation à travers des écoulements d'eau peu profonds et des formations non consolidées. Ces boues de forage sont mises en oeuvre avec des microsphères creux qui en augmentent le volume mais pas trop le poids. Ces boues de forage s'emploient également avec un mélange de silicate, de matière fibreuse de haute aire superficielle, de particules de graphite déformables, et d'un matériau cimentaire activable pour stabiliser des formations non consolidées et former un gâteau de filtration ductile qui se lie avec le tubage cimentaire.
Lawson Jimmie B.
Whitfill Donald L.
Baroid Technology Inc.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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