In a groundbreaking achievement, Mari Petroleum Company Limited (PSX: MARI) has recently announced a significant gas discovery at the Shewa-2 appraisal-cum-exploratory well, situated in the untapped region of North Waziristan, Khyber Pakhtunkhwa.
The drilling operation, culminating at an impressive depth of 4,577 meters on November 01, 2023, was meticulously executed to evaluate the Lockhart and Hangu formations, previously identified in Shewa-1. Additionally, it aimed to assess the hydrocarbon potential of the exploratory targets, Samanasuk, and Kawagarh formations.
Kawagarh Formation
The pivotal moment in this exploration journey occurred during the Drill Stem Test in the Kawagarh formation. This phase unveiled a sustainable gas flow of 0.607 million standard cubic feet per day (MMSCFD) at a wellhead flowing pressure (WHFP) of 97 pounds per square inch (Psi) with a 32/64-inch choke size.
The newfound discovery in the Kawagarh formation seamlessly complements the existing hydrocarbon-bearing reservoirs, Lockhart and Hangu, identified in the exploratory well Shewa-1.
Extending the Hydrocarbon Play: Lockhart and Hangu Formations
The appraisal of the Lockhart and Hangu formations serves as a testament to the extension of the hydrocarbon play in these prolific layers. The Hungu formation, subjected to rigorous testing, exhibited a gas flow rate of 0.274 MMSCFD at a WHFP of 77 Psi with a 32/64-inch choke size, further bolstering the promising potential in the region.
Moreover, the Lockhart formation in Shewa-2, following a meticulous acid test, demonstrated a substantial gas flow rate of 51 MMSCFD and 391 barrels of condensate per day at a WHFP of 5,972 Psi. This impressive result was achieved utilizing a 38/64-inch choke size, showcasing the immense potential for commercial extraction.
Key Stakeholders and Collaborative Ventures
Mari Petroleum Company Limited, as the driving force behind this exploration venture, operates the Waziristan Block with a commanding 55 percent working interest. This triumph is a collaborative effort with joint venture partners, including OGDCL and OPI, holding 35 percent and 10 percent working interest, respectively.
The successful discovery at Shewa-2 marks a significant milestone in their collective exploration endeavors in the untapped region.
The Significance of Shewa-2 Discovery
This groundbreaking discovery at Shewa-2 holds immense significance, not just for Mari Petroleum but also for the broader energy landscape in Pakistan. The identification of new hydrocarbon reservoirs adds a layer of economic potential to the region, fostering prospects for increased energy security and economic growth.
The sustainable gas flow rates recorded in the Kawagarh and Hungu formations underscore the viability of commercial extraction, opening doors to new opportunities for the energy sector.
Collaborative Endeavors and Future Prospects
The collaboration between Mari Petroleum, OGDCL, and OPI exemplifies the power of joint ventures in unlocking the vast potential of untapped reserves. As the exploration journey continues, the partners are poised to leverage their collective expertise to further delineate the reservoirs, optimize extraction techniques, and contribute to the sustainable development of the energy sector in Pakistan.
Statistical Insights: A Closer Look at the Numbers
Let’s delve into the statistical insights derived from the Shewa-2 discovery:
Kawagarh Formation
| Parameter | Measurement |
|---|---|
| Gas Flow Rate | 0.607 MMSCFD |
| WHFP (Wellhead Flowing Pressure) | 97 Psi |
| Choke Size | 32/64-inch |
Hungu Formation
| Parameter | Measurement |
|---|---|
| Gas Flow Rate | 0.274 MMSCFD |
| WHFP (Wellhead Flowing Pressure) | 77 Psi |
| Choke Size | 32/64-inch |
Lockhart Formation
| Parameter | Measurement |
|---|---|
| Gas Flow Rate | 51 MMSCFD |
| Condensate Flow Rate | 391 barrels per day |
| WHFP (Wellhead Flowing Pressure) | 5,972 Psi |
| Choke Size | 38/64-inch |
These statistics offer a comprehensive overview of the gas flow rates and pressures observed in each formation, providing valuable insights into the commercial viability of the Shewa-2 discovery.
Conclusion
Mari Petroleum Company Limited’s breakthrough at the Shewa-2 well signifies a momentous achievement in the exploration of North Waziristan. The discovery of substantial gas reserves in the Kawagarh, Hungu, and Lockhart formations not only strengthens the company’s position but also contributes to the broader energy landscape of Pakistan. As collaborative efforts continue to unfold, the Shewa-2 discovery stands as a beacon of hope for the sustainable development of the energy sector in the region, promising economic growth and enhanced energy security.
