Use of rapid onsite bacteria test for oil and gas applications

Patent metadata

Field	Value
Publication number	US-9732372-B2
Application number	US-201314648428-A
Country	US
Kind code	B2
Filing date	Nov 25, 2013
Priority date	Nov 29, 2012
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

A method for onsite bacteria testing for oil and gas applications including collecting at least one component of a wellbore fluid; exposing at least one contaminant in the at least one component to at least one substrate that produces a detectable moiety; and performing a quantitative or qualitative detection of the detectable moiety.

First claim

What is claimed is:

1. A method for treating oilfield water based solution comprising:
a. determining a concentration of a microbial population in a wellbore fluid;
b. after step a, treating the wellbore fluid to reduce the microbial population and produce a treated wellbore fluid; and
c. after step b, determining a concentration of the microbial population in the treated wellbore fluid;
wherein treating the fluid in :step b comprises subjecting the wellbore fluid to at least one treatment process selected from the group consisting of chemicals; UV; thermal; ionizing radiation; and non-ionizing radiation.

2. The method of claim 1 , further comprising repeating treating the treated wellbore fluid to reduce the microbial population to produce a final wellbore fluid having an acceptable level of contaminants.

3. The method of claim 1 , wherein determining the concentration comprises collecting at least one component of a wellbore fluid;
exposing at least one contaminant in the at least one component to at least one substrate that will produce a detectable moiety; and
performing a quantitative or qualitative detection of the detectable moiety.

4. The method of claim 1 , wherein determining the concentration further comprises concentrating at least one contaminant in the at least one component to produce a concentrated sample.

5. The method of claim 1 , wherein the method is performed onsite at an oilfied operation location.

Assignees

• M-I L L C

Inventors

• Fajt James R
• Shakib Natasha

Classifications

• C02F1/02

  by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D) · CPC title

• C02F1/444

  by ultrafiltration or microfiltration · CPC title

• A61L2/087

  Particle radiation, e.g. electron-beam, alpha or beta radiation · CPC title

• C02F2103/10

  from quarries or from mining activities · CPC title

• C12Q1/64 Primary

  Geomicrobiological testing, e.g. for petroleum · CPC title