Geophysics and Pump Test

Code

SE-GPT1

Version

1.3

Offered by

Supply Engineering

ECTS

Prerequisites

Main purpose

Prepare the students to be able to address the geophysical and hydrological questions related to establishing a new wellfield location or protection of an existing location.

Knowledge

By the end of the course the student must be able to

• design a well site and suggest relevant geophysical pre-investigations.

• plan and interpret well tests.

• estimate the long term drawdown and evaluate the risk of contamination of the aquifer.

Skills

After completion of the course, the student must
• Be able to analyze and calculate flow and pressure variations for simple groundwater models.
• Be able from the target and expected geophysical properties of soils or rock in an area to suggest geo-physical method and strategy for mapping of relevance to ground water mapping.
• Have acquired knowledge on geoelectrical and electromagnetic geophysical methods, their principles and applications. Be able to discuss results and uncertainties.
• Have acquired basic knowledge of other geophysical methods. Be able to list alternatives to geoelectrical and electromagnetic methods and their application.
• Be capable of planning and interpreting well test analysis for a specific problem.
• Be able to discuss what to focus on in risk assessments related to ground water extraction.
• Be able to estimate the long term influence of ground water extraction e.g. changing flow directions, effect on surface waters, salt water intrusion and mobility of contamination.
• Be aware of water balances and parameters to evaluate for planning of sustainable water extraction.

Competences

The student will be able to occupy a position in a utility, municipality or engineering company where the cur-rent course will give them capabilities on a general level to plan investigations of possible source locations and/or to make a quality assessment of a suggested survey.

Topics

The student must be able to plan for a well installation. They must be able to analyze the situation, identify possible problems, select the method relevant for investigations. Interpret and understand results.

Thus, the SOLO taxonomy level is 4.

Teaching methods and study activities

Projectwork including fieldwork combined with lectures

Study Activity Model

According to the Study Activity Model, the workload is divided as follows:
Category 1, Initiated by the lecturer with the participation of lecturer and students: 20 hours – 15%
Category 2: Initiated by lecturer with participation of students: 28 hours – 20%
Category 3: Initiated by students with participation of students: 75 hours – 55%
Category 4: Initiated by students with the participation of lecturer and students: 15 hours – 10%

Resources

• Bai, W. (1996): Fluid Flow in Porous Media. Geotechnical Laboratory, The Engineering College of Horsens, Denmark, 20 p.
• Bai, W. (1992): Well Test Analysis of Aquifers. Geotechnical Laboratory, The Engineering College of Horsens, Denmark, 46 p.
• Bai, W. (1992): Well Test Analysis of Aquifers, Examples. Geotechnical Laboratory, The Engineering College of Horsens, Denmark, 20 p.
• Bai, W. (1996): Well Test Analysis of Aquifers, Example Problems. Geotechnical Laboratory, The Engineering College of Horsens, Denmark, 86 p. All Students.

For Danish students the following Danish editions of the literature is available:
• Bai, W (1990): Stationær og ikke-stationær grundvandsstrømning. Laboratoriet for Geoteknik,
Ingeniørhøjskolen i Horsens, 75 p.
• Bai, W (1992): Placering og dimensionering af kildeplads. Laboratoriet for Geoteknik, Ingeniørhøjskolen i Horsens, 37 p.
• Bai, W (1990): Prøvepumpning. Laboratoriet for Geoteknik, Ingeniørhøjskolen i Horsens, 24 p.)

• Literature related to geophysical mapping will be informed upon course start-up.

Supplementary literature:
• Krusemann, G. P. & de Ridder, N. A. (1994): Analysis and Evaluation of Pumping test Data. ILRI, The Netherlands, 337p.
• Driscoll, F. D. (1989): Groundwater and Wells. Johnson Filtration Systems Inc., St. Paul, Minnesota, 1089 p.
• Relevant recent information and examples may be presented during lectures

Evaluation

Examination

Prerequisites:
Mandatory course activities completed.
Course assignments handed in before deadline.

Type of examination:
Individual oral exam with an internal examiner. 20 min.
Exam is without preparation based upon course assignments.

Allowed tools:
All tools are allowed.

Re-exam:
Method will be equal to the ordinary exam.

Grading criteria

Grading based on the Danish 7 point scale.
Exam accounts for 100% of final grade.