At the Society of Petroleum Engineers Permian Basin Energy Conference, industry leaders detailed the advanced techniques being deployed to maximize oil extraction and counter concerns about peak US shale production.

Advancements in Lateral Drilling

Operators are significantly extending the length of lateral wells to improve economic viability and access stranded acreage. Hibernia Resources, for example, has progressed from hesitant to drill beyond two miles to routinely drilling laterals up to four miles, facilitated by more reliable steerable drilling tools. The company has drilled approximately 35 wells in the Dean formation, with most being three to four miles long, including three U-turn wells that make a 180-degree turn underground. This approach economically unlocks previously unavailable acreage. According to an Enverus Intelligence Research analyst, longer laterals are the "lowest hanging fruit" for efficiency gains, with the Permian's average lateral length at about two miles and room to grow, even if the four-mile target isn't universal. However, challenges exist, such as the need for more expensive jointed tubing when standard coil tubing is insufficient for the distances.

Proprietary Chemical and Recovery Methods

Companies are leveraging proprietary substances to enhance recovery. ExxonMobil utilizes a petcoke-based proppant, while Chevron employs proprietary surfactant blends and is trialing a gas injection program. Chevron has used surfactants for six to seven years, testing various chemicals, though the specific formulas remain confidential. The gas injection process, piloted in the Midland basin and planned for the Delaware basin, involves shutting in wells and injecting gas to build reservoir pressure, a method likened to inflating a "leaky balloon" due to the reservoirs' limited but existent permeability. Occidental also continues using carbon dioxide to enhance oil recovery in its unconventional wells.

Operational Innovations and Development Strategies

Operators are adopting innovative completion and development strategies to boost efficiency. Diamondback Energy identified simulfracs—performing two hydraulic fractures simultaneously with one rig—as its most significant efficiency improvement, preferring this over a single trimulfrac. The company has also studied ExxonMobil's proppant but currently uses cheaper wet sand. Furthermore, a shift in development philosophy is occurring, with companies like Diamondback and Hibernia moving from parent-child well patterns to cube development. This method involves drilling multiple horizontal wells from a single surface location, which is considered the ideal development strategy despite the longer capital deployment to production timeline.

Future Outlook and Economic Considerations

The industry remains focused on innovation and cost reduction to maintain viability. A Chevron senior manager emphasized that current knowledge is not final, anticipating future discoveries of better methods. Chevron, despite reaching significant production milestones, is actively working to lower break-even costs for potential fracking sites to make more laterals economically feasible. The collective drive for technological advancement underscores the industry's adaptive response to both immediate operational challenges and long-term production forecasts.