Aqueous drilling and packer fluids

Details Aqueous drilling and packer fluids Aqueous drilling and packer fluids

E - Fixed Constructions

21

B

31/21

E21B 33/12 (2006.01) C09K 8/24 (2006.01)

Patent

CA 1253332

ABSTRACT AQUEOUS DRILLING AND PACKER FLUIDS Sulphonated polymers and copolymers are used as thinners in aqueous drilling or packer fluids. The sulphonated polymer has polydispersity below 2 and has a low solution viscosity. It is generally a copolymer of beta-acrylamidoalkane sulphonate or allyl sulphonate or other aliphatic sulphonate with an ethylenically unsaturated carboxylic acid, generally acrylic acid.

488030

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