Geophysical Water Well Logging

Why Log you may ask? Geophysical logs are vital for helping to understand the formation penetrated by a well, fluid in the well or a physical characteristic of the borehole. The cost of logging is but a mere fraction of the total cost associated with the construction of a well but the data gained from logging is priceless. Open-hole borehole geophysical logs are correlated with the drill cuttings from the well to aid in interpretation of the formation the well penetrates. During the drilling process parts of some formations may fall from the upper hole and mix with the samples from the lower formation. This can make interpretation difficult and errors may occur. By comparing the cuttings and borehole logs, a more accurate description of the lithology is possible which greatly ades in the design of a well.

Up-Hole Vs. Down-Hole Digitization

Welenco Water Well Technologies maintains logging systems which can digitize logged data either at the surface or down-hole. With advances in computer and electronic technology most logging tools manufactured today digitize the data down-hole and then send it to the surface to be analyzed. To you the customer, there is no difference between data that has been surface digitized or down-hole digitized, data is data. However, the new digital technology does have the advantage of allowing us to pack more sensors onto one tool, therefore reducing or sometimes eliminating the need for multiple logging passes. This in turn reduces the total time the logger spends in the hole and subsequently drill-rig standby time. Other than that, the remaining benefits are to the tool operator in the form of ease of operation, flexibility of data manipulation and ease of maintenance.

The sub menu on the left lists most of the logging tools we have available and their applications. Call us and we will discuss your next well design project. (800) 961- WELL (9355)