Mari Petroleum Company Limited (PSX: MARI) has announced a significant gas discovery at the Shewa-2 appraisal-cum-exploratory well, located in the North Waziristan district, Khyber Pakhtunkhwa.
According to a notification to the Pakistan Stock Exchange (PSX), the well was successfully drilled to a depth of 4,577 meters on November 01, 2023. The primary objective was to appraise the Lockhart and Hangu formations, previously discovered in exploratory well Shewa-1, and to test the hydrocarbon potential of exploratory targets, namely the Samanasuk and Kawagarh formations.
During the Drill Stem Test in the Kawagarh formation, gas flowed sustainably at a rate of 0.607 million standard cubic feet per day (MMSCFD) with a wellhead flowing pressure (WHFP) of 97 pounds per square inch (Psi) at a 32/64-inch choke size. This discovery in the Kawagarh formation complements the hydrocarbon-bearing reservoirs discovered earlier in Shewa-1, namely the Lockhart and Hangu formations.
The appraisal of the Lockhart and Hangu Formations confirmed the extension of the hydrocarbon play in these formations. The Hungu formation was tested at a gas flow rate of 0.274 MMSCFD at a WHFP of 77 Psi at a 32/64-inch choke size. Additionally, the Lockhart formation in Shewa-2 was tested (post-acid) at a gas flow rate of 51 MMSCFD and 391 barrels of condensate per day at a WHFP of 5,972 Psi at a 38/64-inch choke size.
Mari Petroleum operates the Waziristan Block with a 55 percent working interest, while OGDCL and OPI are joint venture partners with 35 percent and 10 percent working interest, respectively.
