International Highlights (Week of Oct. 25, 2021)

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View more highlights at Hart Energy's Drilling Activity database.

1 US

CNX Resources completed three Marcellus Shale-Rich Hill Field wells at a pad in Pennsylvania’s Greene County. The pad is in Section 5, Wind Ridge 7.5 Quad, Richhill Township. The #99BHSM Braddock RHL was drilled to 18,211 ft (6,989 ft true vertical). The well was tested flowing 37.52 MMcf of gas per day with a shut-in casing pressure of 1,600 psi. Production is from perforations at 7,450-18,112 ft. The #99DHSM Braddock RHL has a total depth of 18,298 ft (6,977 ft true vertical). It initially flowed 931,900 cf of gas per day from a perforated zone at 7,602-18,204 ft. with a shut-in casing pressure pf 1,750 psi. The #99EHSM Braddock RHL has a total depth of 18,536 ft and a true vertical depth of 6,996 ft. It produced 14.59 MMcf of gas per day. The shut-in casing pressure was 1,750 psi, and it is producing from a perforated zone at 7,765-18,469 ft. CNX is based in Canonsburg, Pa.

2 Norway

Equinor, based in Stavanger, announced an oil and gas discovery about 18 km southwest of Troll Field in PL 923. The target for exploration well #31/1-2 S was to prove petroleum in the Middle Jurassic Brent and Cook. The #31/1-2 S encountered a 145-m gas column (Etive and Oseberg) and a 24-m oil column. The sandstone reservoir was 50-m thick with good reservoir quality. In addition, a 6-m, oil-bearing sandstone with moderate to poor reservoir quality was found in the upper part of Dublin. It was drilled to 3,555 m and bottomed in Jurassic Amundsen. The target for #31/1-2 A was to delineate the discovery made in Brent. The well hit good quality sandstones with good reservoir quality in Etive and the upper part of Oseberg. The lower part of Oseberg contained sandstone with moderate to poor reservoir quality. An estimated total of 41 m of effective sandstone reservoir was found in the two formations. The well proved 12 m of oil in Etive and a 17-m oil column in Oseberg. The Cook formation proved to be water-filled in both wells. Well #31/1-2 A was drilled to 3,876 m and bottom in Cook. Recoverable resources are estimated 44–69 MMbbl of oil equivalent.

3 South Africa

Tower Resources announced updated resource estimates following interpretation of the reprocessing of additional 2D seismic data covering the Algoa-Gamtoos license, offshore South Africa. The London-based company’s reprocessing work encompassed 4,500 km of 2D seismic data already collected and also further data acquired from the Petroleum Authority of South Africa, including tie lines from Brulpadda to the Algoa-Gamtoos area. The results indicate a deeper level slope (as seen at Brulpadda) and three separate reservoir targets — a shallow section estimated at an unrisked Pmean recoverable resource of 470 MMboe, a previously unidentified deeper slope section with an unrisked Pmean recoverable resource of 231 MMboe, and a previously unidentified basin floor fan section has an unrisked Pmean recoverable resources of 710 MMboe. In addition, a submarine fan complex in the shallow-water Gamtoos area of the license was identified during the survey, which is estimated to contain an unrisked Pmean recoverable resource of 135 MMboe. The Algoa-Gamtoos license is located adjacent to TotalEnergies' Blocks 11B/12B, where Total has made discoveries in excess of 1 Bboe.