Energy Excursions

Archives: Topics

Where to Place a Well

Before drilling a well, during what is known as the “exploration phase,” geologists must take into account where a well should be placed. To find hydrocarbons, oil and gas wells must be located in areas where there is a successful petroleum system. A petroleum system consists of several elements: source rock, overburden rock, migration pathway, …

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Well Construction

Once geologic, engineering and financial analysis is done to ensure the desired area will yield a successful drilling project, it is time for final preparations and construction of the oil and gas well. What we desire is a well that can be safely constructed and then safely used. Most of the problems in building a …

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Oil and Gas Wells

Now that we understand some of the basics of extraction and injection wells, we are going to shift our focus towards wells that service the oil and gas sector. These wells will be the main wells discussed in this course. Oftentimes both extraction and injection wells must be drilled in the area of interest (where …

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Regulatory Oversight of Wells

No matter its purpose, a well must be drilled anticipating potential problems that could occur and compromise health, safety, and the environment. Contamination is a large concern for design, construction and operation of wells, whether they are for extraction or injection. Prevention is paramount, for health and safety reasons, as well as environmental aspects. Although …

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Types of Wells

A well is a structure that is drilled into the ground for several purposes. We will discuss two basic types of wells throughout this lesson. They are known as 1) extraction wells and 2) injection wells.  Extraction wells, also known as recovery wells, are drilled for the purpose of accessing natural resources, such as:  Extraction …

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Texas Water Footprint

What is a Water Footprint?  What does it mean when someone talks about their “water footprint?” According to the Water Footprint Network, by definition it is, “the amount of water used to produce each of the goods and services we use. It can be measured for a single process, such as growing rice, for a …

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