Effective 1 March 2016, Drillsearch Energy Limited is a wholly owned subsidiary of Beach Energy Limited. For latest information regarding the combined operations, please visit Beach’s web site at www.beachenergy.com.au. Please note the existing Drillsearch web site will close in due course.
Effective 1 March 2016, Drillsearch Energy Limited is a wholly owned subsidiary of Beach Energy Limited. For latest information regarding the combined operations, please visit Beach’s web site at www.beachenergy.com.au. Please note the existing Drillsearch web site will close in due course.

Glossary

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There are 11 names in this directory beginning with the letter D.
Deterministic Estimate
The method of estimation of reserves or resources is called deterministic if a single best estimate is made based on known geological, engineering, and economic data.
Developed Reserves
Developed reserves are expected to be recovered from existing wells including reserves behind pipe. Improved recovery reserves are considered developed only after the necessary equipment has been installed, or when the costs to do so are relatively minor. Developed reserves may be sub-categorized as producing or non-producing.
Development not Viable
Of significant size, but awaiting development of a market or removal of other constraints to development, which may be technical, environmental, or political, for example.
Development on Hold
No current plans to develop or to acquire additional data at this time.
Development Pending
Requires further data acquisition and/or evaluation in order to confirm commerciality.
DHI
Direct Hydrocarbon Indicator
Discovered
The term applied to a petroleum accumulation/reservoir whose existence has been determined by its actual penetration by a well, which has also clearly demonstrated the existence of moveable petroleum by flow to the surface or at least some recovery of a sample of petroleum. Log and/or core data may suffice for proof of existence of moveable petroleum if an analogous reservoir is available for comparison. (See also “Known Accumulation”: Petroleum quantities that are discovered are in “known accumulations” or “known reservoirs”).
Discovered Petroleum­initially-in-place
That quantity of petroleum which is estimated, on a given date, to be contained in known accumulations, plus those quantities already produced there from. Discovered Petroleum-initially-in-place may be subdivided into Commercial and Sub-commercial categories, with the estimated potentially recoverable portion being classified as Reserves and Contingent Resources respectively.
Dry Gas
Dry Gas is a natural gas containing insufficient quantities of hydrocarbons heavier than methane to allow their commercial extraction or to require their removal in order to render the gas suitable for fuel use. (Also called Lean Gas)
Dry Hole
A well found to be incapable of producing either oil or gas in sufficient quantities to justify completion as an oil or gas well.
DST
Drill Stem Test