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Botala Energy Confirms Reservoir Permeability at Serowe-3.5B Ahead of Stimulation

Energy By Maxwell Dee 3 min read

Botala Energy confirms encouraging reservoir permeability at its Serowe-3.5B well in Botswana, setting the stage for hydraulic stimulation and production testing that could unlock commercial gas flows.

  • Diagnostic Stimulation Injection Test confirms reservoir permeability
  • Step Rate Test to determine stimulation pumping pressure
  • Production testing to target sustained gas flow above 70 GJ/day
  • Supports advancement of Bankable Feasibility Study and reserves certification
  • Serowe CBM Project holds 7,542 PJ 3C gas resource base

Positive Permeability Confirmed at Serowe-3.5B

Botala Energy Ltd (ASX:BTE) has reported a significant technical milestone at its Serowe Coal Bed Methane (CBM) Project in Botswana, with the Diagnostic Stimulation Injection Test (DSIT) at its principal Pitse Pilot well 3.5B confirming sufficient reservoir permeability. This result provides encouraging evidence that the Serowe Seam can effectively accept hydraulic stimulation, a critical step toward unlocking commercial gas production.

The DSIT measured how the coal seam responds to fluid injection and pressure changes, establishing the initiation pressure required for coal separation. This data reduces a key technical uncertainty ahead of the next Step Rate Test (SRT), which will calibrate the surface pumping pressure needed to meet downhole stimulation requirements. Botala targets completing the SRT and subsequent stimulation within July 2026.

Towards Commercial Gas Flow and Production Testing

Following stimulation and well completion, Botala plans to progressively bring well 3.5B online for production testing. The focus will be on demonstrating sustained gas flow, monitoring water production, reservoir pressure behaviour, and production decline or build-up characteristics. Internal economic modelling indicates that sustained production above approximately 70 gigajoules per day (GJ/day) would support the company’s current four-phase development concept.

Encouragingly, the reservoir response at Serowe-3.5B, combined with the thickness and quality of the Serowe seam and reported production of about 120 GJ/day from the nearby MAS-13 well on adjacent acreage, suggests credible potential to outperform this benchmark. Actual flow rates will be confirmed through production testing, which represents the next major catalyst for the project’s value.

Implications for Serowe CBM Project Development

The Pitse Pilot well 3.5B is pivotal not only for its own production potential but also as a gateway to developing Botala’s broader Serowe CBM Project, which holds an independently certified 7,542 PJ 3C gas resource base. Successful demonstration of commercial gas flow is expected to provide essential data for independent reserves certification, completion of the Bankable Feasibility Study, wellfield development planning, and future financing discussions.

Botala’s phased, risk-managed approach aims to establish a scalable domestic gas supply to support Southern Africa’s growing industrial and power generation energy demand. The Pitse Pilot is the first of four development phases targeting an initial LNG production of 3.5 PJ per year from around 108 wells. All environmental approvals are in place for the gasfield, LNG facilities, and pipeline corridor.

Sequenced Work Program Reduces Technical Risk

Chief Executive Officer Kris Martinick emphasised the deliberate sequencing of the 2026 work program, which has steadily reduced technical uncertainty. From drilling and casing to perforation and now positive reservoir response from the DSIT, each step strengthens the investment case for sustained commercial gas production at Pitse.

With the Step Rate Test imminent, Botala is poised to move quickly into stimulation and production testing phases, setting the stage for critical data generation that will underpin reserves certification and the Bankable Feasibility Study. The company’s low-cost base and internal modelling provide a clear production benchmark, making the upcoming flow testing a key event for investors.

Bottom Line?

The positive permeability test at Serowe-3.5B clears a major technical hurdle, but upcoming production testing will be the true litmus test for Botala’s commercial gas ambitions.

Questions in the middle?

  • Will the production testing confirm sustained gas flow above the 70 GJ/day benchmark?
  • How will the Step Rate Test results refine the stimulation program and operational pressures?
  • What impact could successful commercialisation at Serowe have on regional energy supply dynamics?