To start, this module gives a geological overview of unconventional formations and based on this, an explanation of why and how horizontal wells are drilled. Next, is an example based on Texas's state regulations, including: conventional spacing and density rules, horizontal accommodations implemented with Rule 86, take-point gap and off-lease spudding, and stacked laterals. Following that example, it moves to the Colorado DJ basin with an example of forced pooling and the rectangular survey system, followed by an example in the North Dakota Bakken area. Within this module there is an optional drill-down section that details Texas rules, including: the difficulties of working without forced pooling, production sharing agreements, and allocation wells.

Duration: Approximately 35 minutes, depending on user pace.

Learning Objectives: Upon successful completion of this module, you will be able to:

• Name common types of state-imposed spacing and density rules that apply to vertical oil and gas wells
• Explain why horizontal wells are required in unconventional formations and why those wells need different spacing rules than vertical wells
• Describe how states that use the Rectangular Survey System and have forced pooling tend to have more-efficient unconventional development
• Draw examples of how horizontal well groups have been drilled in some key unconventional development areas

Prerequisites: Module 1-9

Advance Preparation: None

Program Level: Non-technical

Format: Prerecorded narrator with supporting visuals. User controls course pace.