Outlook For Exploration Research Articles

Australian onshore petroleum acreage and releases 2017

This paper is a compilation of material from state and territory jurisdictions regarding onshore acreage and its availability for petroleum exploration in 2017. Australian state and territory governments continue to support investment in the petroleum industry through the provision of acreage for exploration, which is promoted nationally and internationally. Updates are provided on recent upstream developments and government initiatives. Present and future policy directions that relate to onshore petroleum exploration are described, particularly for jurisdictions that are not making land available this year. When the APPEA conference was last held in Perth, in 2014, the oil price and exploration outlook were very different from today. In 2016, the petroleum industry experienced the full impact of the downturn, with the price for oil reaching a low of under $27 USD/barrel (WTI) early in the year. Several companies departed the onshore, exploration was at a fifteen-year low and much acreage has been surrendered across Australia. However, 2017 is showing signs of improvement with oil prices in the mid-50s and some hope that the industry will turn the corner this year. Low levels of exploration activity may have implications for future domestic gas supplies, and rising gas prices are of concern to local manufacturing industries and consumers throughout Australia. However, this may present marketing opportunities for successful explorers.

Washington Ranch Morrow Field: Case History in Frontier Exploration: ABSTRACT

The Washington Ranch Morrow gas field is located 35 mi (56 km) southwest of Carlsbad, New Mexico, on the western rim of the Delaware basin 6 mi (10 km) basin-ward from the Capitan reef front. Late Pennsylvanian orogenic forces created a structural development of such sharp magnitude that most exploration outlook condemned the area as too disturbed for commercial hydrocarbon entrapment. The northwest-southeast-trending fault on the northeast side of the field has a displacement of more than 2,000 ft (610 m), structural contours on the basal Morrow sandstone unit define 600 ft (183 m) of closure against the fault. The crest of the structure has lost 1,700 ft (518 m) of Wolfcampian and Upper Pennsylvanian section through erosion and nondeposition. Eight deep dry holes had been drilled within an 8 mi (13 km) radius of the drill site for the discovery well. Several of these wells had encountered a significant igneous sill only 400 ft (122 m) below the basal Morrow sandstone. The presence of this sill so close to the main potential reservoir rock further detracted from the prospect. Reefing development of two separate ages in Pennsylvanian sediments caused very rapid lateral facies changes which made well log correlations difficult. Frontier exploration philosophy and technique were employed to overcome the many negative considerations of the prospect. The discovery well was completed in June 1971 for a calculated absolute open flow potential of 54 MMCFGD natural, through Morrow perforations at 6,795 to 6,806 ft (2,071 to 2,074 m). While drilling was in progress gas flowed at the rate of 22 MMCFGD on a 2-hour and 10-minute drill-stem test from 6,791 to 6,860 ft (2,070 to 2,091 m). Major gas reserves were made available to the pipeline with the drilling of nine development wells. End_of_Article - Last_Page 766------------