Union Oil Company of California has developed on California State Tidelands, PRC #3053, Parcel 14, an extension to the Huntington Beach offshore oil field. Union was awarded Parcel 14 by the State of California in 1962 for a bonus of $6,110,000.

Parcel 14 is located down the west plunge of a large east-west-trending asymmetrical anticlinal structure. This offshore structure extends from the shore westward approximately 3 miles. The south flank of the anticline is steep-dipping with known dips up to 65°. The north flank has an average dip of 10°. An axial hade of approximately 70° to the north is present.

Faulting is minor on Parcel 14 with only two 50-foot normal faults mapped. Oil is produced from the Upper Main division "C" sandstone reservoirs, defined as Upper Main and Main zones.

The maximum net oil-sand column penetrated to date is 510 feet. The Upper Main is composed of several sandstone bodies that are lenticular in nature, whereas the Main zone is more of a massive blanket sandstone body and holds the major part of the oil column.

California Division of Oil and Gas, "Summary of Operations," Volume 46, No. 2, contains a description of the Main-zone shale section located shoreward in Parcel 14. This main-zone shale section thickens seaward and new sandstone bodies appear, partly as a result of facies changes, and partly because of lensing. As a result, additional oil-productive zones are developed across Parcel 14 in both the Main and Upper Main intervals. Thirty wells on 10-acre spacing have been drilled directionally and completed from Union's Platform Eva. The wells are positioned on a five-spot waterflood pattern for future secondary operations.

Primary reserves of 23 million barrels and secondary reserves of 10 million barrels, a total of 33 million barrels, have been estimated for Parcel 14. Average daily production from Parcel 14 is 8,000 BOPD. All wells are pumped by hydraulic lift.

End_of_Article - Last_Page 649------------