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The wells may be arranged in a triangular, square or rectangular pattern. The design of the well field concerns depth, capacity, discharge, and spacing of the wells. [1] The discharge is found from a water balance. [2] The depth is selected in accordance to aquifer properties. The well filter must be placed in a permeable soil layer.
Wilmington Oil Field Structure Map Wilmington Oil Field Geologic Cross Section The field was discovered with the Ranger Petroleum Corp.'s Watson No. 2 well in 1932, which flowed at 150 bbl per day, and the broad anticline structure itself was discovered in 1936 by the General Petroleum Corp.'s Terminal No. 1 well based on a Reflection ...
There are both horizontal and vertical wells. Injection is at fracture pressure. There is a 60 m to 180 m spacing for horizontal wells. Vertical wells are spaced at 2 to 8 Acre spacing for vertical wells. The development can be as low as 7 m net pay. It is used in areas generally with no to minimal bottom water or top gas. The CSOR is 3.3 to 4.5.
Production wells on the Cymric field are often closely spaced, with some parts of the oil field having wells at 110-foot (34 m) spacing (5/8 acre). [ 5 ] Currently, the principal operators on the field are Chevron Corp. , Aera Energy LLC , and Plains Exploration and Production (PXP), which acquired former operator Nuevo Energy in 2004.
Beverly Hills Oil Field Structure Map. The field is a faulted anticlinal structure with oil trapped by a combination of structural and stratigraphic mechanisms. Bounding the field on the south is the Brentwood-Las Cienegas Fault, and the field ends on the west near the Santa Monica Fault Complex.
These wells may also be relicensed by AER as "re-entered" if a new owner takes over the site. [80] The risk of leakage is higher in a suspended inactive well than in a well that the AER calls, "responsibly abandoned"—"rendered permanently incapable of flow and capped". [90] Suspended inactive older wells present the highest risk of leakage. [90]
There were relatively few wells on the field for the first several decades; indeed, by 1979, there were only 39 wells producing from the Monterey Formation, and each of these wells only produced an average of eight barrels per day. It took the development of advanced recovery technology to turn the Lost Hills into a high-producing oil field.
The Alberta Energy Regulator (AER) is a quasi-judicial, independent agency regulating the development of energy resources in Alberta. Headquartered in Calgary, Alberta, the AER's mandate under the Responsible Energy Development Act (REDA) is "to provide for the efficient, safe, orderly and environmentally responsible development of energy resources and mineral resources in Alberta.” [1]