It is March already and graduating students from Engineering and Geoscience programs in several provinces across Canada are excited to receive their professional certificates and the infamous rings. Future Engineers get their Iron Rings and the future Geologists and Geophysicists get their Earth Rings1.
Estimation of Q Factor
Estimation of Q Factor in Seismic Evaluations
Sanuja Senanayake
Geology Undergraduate Student: Winter 2015, University of Calgary.
Summary
The quality of seismic images varies with several parameters. Fundamentally, the signal strength plays a major role in the clarity of seismic images. By analyzing the signal quality quantitatively as opposed to qualitatively, we can correct the loss of signal strength over a distance and time. The Q factor is a mathematical representation of signal degeneration. It can be used to evaluate the original seismic wavelet from a distorted wavelet. There are several methods to derive the value of Q. But currently, there is no consensus among the geophysicists on which method is more accurate. In this particular study (Lupiancci, Andriano, Oliveira, 2015), researchers evaluated three methods; amplitude decay versus time decay, spectral ratio-based, and Wang’s method. After several iterations of the data, they found the Wang method to be more accurate and provided the most consistent dataset. However, it should be highlighted the spectral ratio-based method also provided very accurate results.
Recover Data from Internal Hard Drives
Computers are made of multiple different components. Not all components are vital to the operations of a computer. For example, failure of a disk drive (DVD/BlueRay) would most likely have little to no impact on other functions of a computer. But a failure of a vital component such as the processor, power supply, or malfunctioning of a hard drive will lead to a situation where the computer is no longer operational. Do not panic. You may be able to recover data from such computers using either an external enclosure or using an IDE/SATA to USB adapter.
You can recover data from most “broken” computers even if you are not tech-savvy. If you perform the recovery at home (or business) by yourself, you will save from $100 to $2000 CAD (2016 estimates) on data recovery costs. Continue reading Recover Data from Internal Hard Drives
Careers Petroleum Geology
The terms “Petroleum Geology” and “Petroleum Engineering” have been around even before the modern boom in the oil and gas industry. But you should ask yourself, is there any difference between a Geologist and a Petroleum Geologist? Can a Professional Geologist perform the same tasks as a specialized Professional Petroleum Geologist? To answer these questions, we need to understand the basics of petroleum geology and why it is important to our modern-day energy needs.
Installing a router and routing basics
Modem, Router and Modem-Router combination
The term routing has been in used long before the Internet age. In the past, routing refers to the distribution of mail or landline (traditional) phone calls through mail sorting centers or telephone switching centers. Today, a router is an electronic networking device that acts as the “middle guy” between two or more data lines from different devices. A router manages the packets (data) migration between computers within the local area network (LAN) and provides distributed Internet (Wide Area Network) access to the local clients. Continue reading Installing a router and routing basics