barr
New E&P Blocks of
Onshore and Offshore
Libya
Rank, Potential,
Undeveloped Fields, Discoveries, and Dry-holes
Target
Exploration
65 KENTON COURT, LONDON W14
8NW, UK.
TEL: +44 (207) 371 2240 FAX: +44 (207) 371 2240
Abstract:
To speedup your
negation process we have completed a portable update of our popular review of
the 139 new (early 2001) offshore and onshore E&P blocks of Libya utilised
666 well
records, numerous well logs, stratigraphic sections,
structural sections, and stratigraphic, geochemical, tectonic and structural
maps of Cyrenaica, Ghadames, Murzuk, Sirt, Tripolitania, and offshore Basins of
Libya, which you can load and carry into the negotiation room, and (if you
wish) buy another copy loaded into a laptop at your company’s main office back
home.
Due to the large
number of parameters, and to impartially assess, compare, and rank the E&P
potentials of the 139 blocks, one concession and well location map was drafted,
two main EXCEL© databases were compiled, and five subsidary EXCELÓ databases were
generated to summarise well records, exploration records, and geological,
geochemical, and tectonic parameters of the 139 new blocks:
Ř A
new well location map of the 139 Blocks (Scale 1/2500) was drafted to
illustrate the exploration or production status of the wells within the blocks.
Ř The
first E&P database lists drilling, engineering and geological data, status
and results of the 666 wells in all blocks (28*666 data entries). One sort
variation of the second database was generated to alphabetically list wells per
each block.
Ř
The second E&P database summarises the drilling,
engineering and geological data per block (31*139 data entries). An exploration
risk equation was modified to rank the relative E&P potential of the
individual blocks, via comparing the source, reservoirs, cap rocks, tectonics,
remaining undrilled anomalies, and exploration results of each block. Four sort
variations of the second database were generated in order to rank every one of
the new 139 blocks, and to produce 51 charts illustrating the relative E&P
ranks of the blocks of every basin-province, the relative E&P rank of the
blocks for all basins-provinces in Libya, the relative size and distribution of
the proven, probable and possible discovered hydrocarbon reserves of all
blocks, as well as other parameters not included in the ranking equation.
1.
Introduction:
Apart from the surface stratigraphic divisions,
there are no less than 20 stratigraphic nomenclatures charts for Sirte Basin
alone, for almost every one of the early operating companies has one or several
charts of the encountered subsurface stratigraphic units. Similar situations,
though to a lesser magnitudes exist for other sedimentary basins of Libya. This
E&P history produced variegated stratigraphic correlation levels, which are
hard to correlate without the actual lithologic and electric logs.
Published records of 666 wells (Figure 1) within
the new E&P Blocks of offshore and onshore Libya as published by the NOC in
early 2001 (Figure 2) were reviewed through this study, also a large number of
documents, well logs, cross-sections, and tectonic, stratigraphic, geochemical
and structural maps of onshore and offshore Libya as published in the Al Fateh
University series of conferences on the geology of Libya, (e.g. Wenneker et al
1996 and Ibrahim, 1992, 2000b, 2001a, 2001b).
The blocks are located -according to the Libyan
NOC, in six provinces. New block Ghadames 20 and a single large concession have
recently been delineated in the Kufra Basin, which is now also open for
exploration, (both are not shown in figure 2).
Fig 1
