Show 1 Petroleum Review R Report port j Shows Drilling Up 88 Petroleum Information Corporations Corporation's Mid Year Mid Year Review points out the definite marked increase in Utah drilling activity activity vity this year Utah's 66 completions at year mid-year represented an 88 per cent Increase increase increase in In- crease in activity as compared with the first half of half of the wells were successful Thirty-one Thirty produced oil two were gas wells reported Carlton Carlton Carl Carl- ton Stowe Utah Geological Survey Staff Specialist this week THE NEW Tertiary oil trend In the deep part of the Uinta Basin was again paramount The level levei of activity was wasI I not high by numerical standards but the area attracted nationwide attention Prolific completions featured the work Nearly 86 percent of the infield wells in the state stale produced New field exploration exploration exploration tion achieved a success ratio of one in six or 1613 per cent according to the PI report Overall exploration was 2368 percent successful RIG ACTIVITY in Utah also showed marked improvement The average number of rotaries at work in the state during the first 26 weeks of 1971 was 13 In the first half of this year the count did not drop below high was 28 and the average nearly 34 In Duchesne County focal point of the Tertiary play 22 of 25 wells completed completed com of 10 exploratory ventures and all 15 infield projects INITIAL PRODUCTION on the Uinta Basin Tertiary trend infield wells ranged as high as 2655 barrels of oil per day averaged 1030 b barrels per day In Altamont Altamont Alta Alta- mont field 1486 barrels per day in Bluebell Bluebell Blue Blue- bell and barrels per da day dav in St Starvation Starvation tion field Some gauged to barrels per day on early tests Most also produce commercial volumes of gas Development work is being conducted conduct conduct- ed on a acre pattern and the fields along the 45 mile Tertiary trend appear likely to be joined before the work is completed Shell Oil is currently setting the pace as operator of record on wells in this area Others listed with successful work include include in include in- in clude Brinkerhoff Drilling Gulf Oil Gas Producing Enterprises Chevron Oil Phillips Petroleum Texaco Inc and Mountain Fuel Supply IN NEW field exploration five of 31 in Duchesne each in Grand and San Sari Juan counties Shells Shell's Wasatch in 18 discovery ery took top honors in the Uinta Basin It flowed 1007 barrels of oil ail and one and anda a half million cubic feet gas per day from feet Brinkerhoff completed for barrels of oil and the theother theother theother other for barrels of oil per day ONE OF the discoveries in 33 opened Starvation field Five of five Starvation field fled wells were successful In Altamont field eight of eight wells completed were successful and in Bluebell Bluebell Blue Blue- bell bell five of five Anschutz Corp drilled the Left Hand Ca Canyon yon discovery In Grand County and immediately c work on a 15 well program in the area area The discovery pumped barrels dally Toledo Mining also drilled successful wells in the area just to southeast inthe the Bull Canyon Ai area South S of Aneth field in the Paradox Bas Basin of f south rn Utah Ufah Zoller Danneberg b erg Exploration completed a Desert Creek formation oil discovery It dumped i 3 30 barrels 0 barrels of oil per day |