Placement process for oil field chemicals

Details Placement process for oil field chemicals Placement process for oil field chemicals

1988-09-14

1991-01-22

Stoll, Robert L.

Wells

Processes

Material placed in pores of formation to treat resident...

166310, 166902, 252 8551, 252 8552, 252 8553, 252 8555, 2523154, E21B 4316, E21B 4102, E21B 3706

Patent

active

049863533

ABSTRACT:
Oil field chemicals are incorporated in polymeric particles of the condensation product of hydroxyacetic acid or the co-condensation product of hydroxyacetic acid and other compounds containing hydroxy-, carboxylic acid-, or hydroxycarboxylic acid moieties. The particles are introduced into an oil well bore and/or subterranean oil formation where the polymeric particles dissolve over a period of time and release the oil field chemicals.

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patent: 4670166 (1987-06-01), McDougall et al.
patent: 4715967 (1987-12-01), Bellis et al.
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