Drilling fluids based on powdered sulfonated thermoplastic polym

Details Drilling fluids based on powdered sulfonated thermoplastic polym Drilling fluids based on powdered sulfonated thermoplastic polym

1982-09-13

1984-01-10

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524159, 524161, 524400, 524423, 524475, 524547, 252 85C, 252 85A, C08K 501, C08K 330, C09K 702

Patent

active

044254555

ABSTRACT:
The present invention relates to powdered sulfonated thermoplastic polymers which function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil and gas wells. The powdered sulfonated thermoplastic polymer has about 5 to about 100 meq. of sulfonate groups per 100 grams of the sulfonated thermoplastic polymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. The powdered sulfonated thermoplastic polymers have a particle size range of 0.25 .mu.m to 2.5 .mu.m and are prepared by spray drying an emulsion of the sulfonated thermoplastic polymer which has been prepared by a free radical copolymerization process. A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated polymer, wherein the polar cosolvent increases the solubility of the sulfonated polymer in the oil drilling mud by decreasing the strong ionic interactions between the sulfonate groups of the sulfonated polymer.

REFERENCES:
patent: 4085168 (1978-04-01), Milkovich et al.
patent: 4293427 (1981-10-01), Lucas et al.
Chem. Abst. 94-105974q (1981) Chesser et al., "High-Temp. Stabilization of Drilling Fluids with a Low MWT Copolymer".

Affiliated with

Also associated with

Rating

Drilling fluids based on powdered sulfonated thermoplastic polym does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drilling fluids based on powdered sulfonated thermoplastic polym, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drilling fluids based on powdered sulfonated thermoplastic polym will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-454006