SPE Denver General Meeting: February 2026

Operators developing Tier 3 acreage in the Williston Basin often face thin reservoirs, high water cut, H₂S generation, and low returns. This case study highlights a two- well pad in the Middle Bakken and Three Fork intervals where a tailored completions design was applied to control fracture height growth, enhance fracture complexity, and mitigate H₂S risk. Results showed higher oil production, reduced water cut, and elimination of H₂S compared to analog offsets, delivering a step-change in well economics. The learnings provide a framework for unlocking value in Tier 3 rock across the basin.

Bio:

Tien Do is the founder of InDZone Consulting and a completions optimization expert known for solving complex industry challenges—from fracture-driven interactions and casing deformation to H₂S prevention and Tier 2/3 development.

Raised in a remote Vietnamese village without electricity, Tien’s journey from humble beginnings to industry leader reflects her lifelong mission: delivering energy that is safe, efficient, and sustainable. After earning her Mechanical Engineering degree Summa Cum Laude, she built a successful career at Schlumberger, Whiting Petroleum, and Nine Band Operating before launching InDZone in 2022—while pregnant with her third child.

In just three years, InDZone has become a trusted partner to over 20 operators across North America, delivering innovative solutions that improve well economics and operational safety. Tien also serves on the Board of the Women in Oil & Gas Association (WOGA), SPE Completions

Membership & Engagement Task Force, and mentors’ future industry leaders.