公开(公告)号：US20190315638A1

公开(公告)日：2019-10-17

申请号：US16399314

申请日：2019-04-30

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Gary JENNEMAN

IPC: C02F1/50 ,  A01N35/02 ,  A01N59/00 ,  C09K8/60 ,  C09K8/52

Abstract: A process is provided for the time dependent reduction and kill of cellular bacteria in a fluid by sequential exposure to nitrites and a low concentration of biocide. Oilfield water containing sulfate-reducing bacteria can be supplied with a timed sequential exposure of nitrite and biocide. The timed sequential addition of the biocide following exposure to the nitrite provides enhanced kill of the sulfate-reducing bacteria at concentrations of biocide that are lower than would be possible using simultaneous addition of these materials.

公开(公告)号：US20180295838A1

公开(公告)日：2018-10-18

申请号：US15951584

申请日：2018-04-12

Applicant: ConocoPhillips Company

Inventor： Gary JENNEMAN

IPC: A01N35/04 ,  A01N59/00 ,  C02F1/50

Abstract: A process is provided for the time dependent reduction and kill of cellular bacteria in a fluid by sequential exposure to nitrites and a low concentration of biocide. Oilfield water containing sulfate-reducing bacteria can be supplied with a timed sequential exposure of nitrite and biocide. The timed sequential addition of the biocide following exposure to the nitrite provides enhanced kill of the sulfate-reducing bacteria at concentrations of biocide that are lower than would be possible using simultaneous addition of these materials.