Abstract

Geltwood Beach No. 1 Well was located on the Geltwood Anticline, approximately 7 1/2 miles south-west of Millicent in the Otway Basin, in the south-eastern part of South Australia. The well was drilled by Drilling Contractors (Australia) pty Ltd for Beach Petroleum No Liability, to a total depth of 12,300 feet. Drilling commenced on 22nd August, 1963, and was completed on lOth November, 1963. A full programme of logging, testing, and coring was undertaken. After passing through 45 feet of Recent calcareous sand, the well penetrated 1860 feet of Miocene to Eocene marine and paralic sediments, and 1760 feet of (?) Palaeocene to Upper Cretaceous sands and grits. Below 3680 feet, a monotonous sequence of Upper to Lower Cretaceous sediments of the Merino Group were encountered and continued to total depth at 12,300 feet. Geltwood Beach No. 1 Well was drilled to test the hydrocarbon potential of Lower Tertiary and Upper Cretaceous sediments on a probable closed structure in an area where strandings of bitumen and heavy oil on the beaches were thought to indicate SUbmarine seepages. Evidence from wells at Mount Salt and Beachport indicated that Geltwood Beach No. 1 was near the edge of probable wedge-out of Middle to Upper Cretaceous and (?) Palaeocene marine sediments overlying Lower Cretaceous beds. Traces of gas were recorded at intervals from 4500 feet to total depth, but five drillstem tests yielded only slightly gascut salty water and drilling mud. The well was plugged and abandoned as a dry hole. The stratigraphic drilling operation at Geltwood Beach No. 1 was subsidized under the Petroleum Search Subsidy Act 1959-1961, from surface to total depth.
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Product Type/Sub Type

nonGeographicDataset - GA Publication - Other Publication

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1965

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Other Publication
petroleum exploration
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Lineage

Unknown

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

a05f7892-d7f6-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2008-08-12

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays