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The Delaware Basin is the larger of the two major lobes of the Permian Basin within the foreland of the Ouachita–Marathon thrust belt separated by the Central Basin Platform. The basin contains sediment dating to Pennsylvanian , Wolfcampian ( Neal Ranch and Lenox Hills Formations [ 7 ] ), Leonardian ( Avalon Shale ), and early Guadalupian times.
This is the first assessment of continuous resources in the Wolfcamp shale in the Midland Basin portion of the Permian. [9] During the 1980s, vertical wells produced oil in the Wolfcamp area. [ 10 ] However, since 2000 in North America, horizontal drilling or porpoising along with hydraulic fracturing have grown tremendously and are tapping the ...
New shale developments in the Permian Basin are still speculative. Many of the plays, like the Wolfcamp and the Cline, haven't been de-risked beyond a handful of core acreage. Early reserve ...
Pioneer Natural Resources Company, headquartered in Irving, Texas, was a company engaged in hydrocarbon exploration.It operated in the Cline Shale, which is part of the Spraberry Trend of the Permian Basin, where the company was the largest acreage holder. [1]
The shale layers alternate with subordinate sandstones, siltstones, and minor yellow-grey tuff deposits. The shale layers often contain calcareous and phosphatic lenses, and also liesegang rings. The depositional environment is considered to have been deep marine within a basin-plain or outer basin-floor fan.
The total thickness is about 1,000 meters (3,300 ft). The base of the formation is largely concealed in the subsurface, and the formation is overlain by the Cutoff Shale. [1] The formation grades laterally into the Victorio Peak Formation. [3] The uppermost shale beds of the formation have been assigned to the Avalon Shale. [4]
Within the basin the formation consists of a basal phosphorite overlain by a thick sequence of chert and cherty sandstone. To the east in western Wyoming the Phosphoria gradually decreases in thickness and is intertongued with carbonate rocks of the Park City Formation and redbed sandstones of the Chugwater Formation of Permian to Triassic age. [1]
The significance of the region to Texas' overall production, however, has been tempered by the increase of drilling activity in the Eagle Ford Shale and the Permian Basin. [ 15 ] Since its discovery, the East Texas Oil Field has produced more than 5.2 billion barrels (830,000,000 m 3 ) of oil, and it originally contained more than 7 billion ...