Databank

Workreport 2017-1

Back

Name:

Fracture Specific Water Sampling and Electrical Conductivity Measurements at the Olkiluoto Site in Eurajoki, Drillholes OL-KR35 and OL-KR53

Writer:

Ripatti, K., Pöllänen, J., Lamminmäki, T.

Language:

English

Page count:

90

Summary:

Fracture specific water sampling and electrical conductivity (EC) measurements were performed at selected fractures in drillholes OL-KR35 and OL-KR53 at the Olkiluoto investigation site in the time period from July to November in 2014. The measurements were conducted using Posiva Flow Log, Difference flow method (PFL DIFF) with a configuration for water sampling (PFL Water Sampler, PFL WS). The purpose of the measurements was to get a fracture specific water samples for groundwater analysis. This report presents the principles of the method and the results of measurements and samplings.

The main point in the investigation programme was water sampling. The incidental measurements were carried out for controlling the quality of the sampling. Flow and single point resistance (SPR) measurements were performed in order to locate the target fractures for the sampling. During the sampling at a target fracture the flow rate, electrical conductivity and temperature of the flowing water were also monitored.

Keywords:

Water sampling, geochemistry, groundwater, flow, measurement, bedrock, drillhole, electrical conductivity, Posiva Flow Log.

File(s):

Fracture Specific Water Sampling and Electrical Conductivity Measurements at the Olkiluoto Site in Eurajoki, Drillholes OL-KR35 and OL-KR53 (pdf) (41.6 MB)


Back


Share article:
This website stores cookies on your computer. These cookies are used to improve our website and provide more personalised services to you.
Close

Cookies

To make this site work properly, we sometimes place small data files called cookies on your device. Most big websites do this too.

1. What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.

2. How do we use cookies?

A number of our pages use cookies to remember your actions and preferences (such as login, language, font size and other display preferences.)

Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.

Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended.

The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.

3. How to control cookies

You can control and/or delete cookies as you wish – for details, see aboutcookies.org. You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.

Close