Title: Aqueous drilling and packer fluids
Application Number: 85106790 Application Date: 1985.09.07
Publication Number: 1009739 Publication Date: 1987.03.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C09K7/02
Applicant(s) Name: Allied Colloids Ltd. (GB) P.O. Box 38, Low Moor, B Address:
Inventor(s) Name: Brian Dymond
Attorney & Agent: SUN LINGHUA LI LUOYING
Abstract:
     In the invention 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.
Time: 7
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