By OGJ editors
HOUSTON, Nov. 21 -- Calvalley Petroleum Inc., operator of Malik Block 9 in Yemen, reported the completion of its fifth horizontal development well in the Sayun-Masila basin in Hiswah oil field in Yemen.
Hiswah-7, the longest horizontal well drilled by Calvalley in Yemen, with a horizontal section of 576 m, was completed in 17 days.
The well is 250 m west of the Hiswah-6 horizontal well, which tested at up to 3,700 b/d of 35° gravity oil. Hiswah-7 was drilled parallel to Hiswah-6, the field's most productive well yet, Calvalley said (OGJ Online, June 23, 2005).
Like Hiswah-6, Hiswah-7 also encountered the Cretaceous Saar formation. It was drilled to 1,900 m and intersected the top of the Saar-Naifa reservoir at 1,106 m. It has 615.5 m in the pay zone. The well penetrated oil-saturated, porous, high-energy carbonate grainstones over most of its length.
Hiswah-7, along with the other four Hiswah horizontal wells, will be brought on stream after production facilities are in place. The drilling rig will move shortly to begin another horizontal development well at Hiswah.
