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PGCE 2009
- Conference date: 01 Mar 2009 - 03 Mar 2009
- Location: Kuala Lumpur, Malaysia
- Published: 01 March 2009
21 - 32 of 32 results
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A Summary Of The Geologists Act (2008) Of Malaysia
Authors Seet Chin Peng and Nur Iskandar TaibThe Geologists Act 2008 was enacted by the Malaysian Parliament in August, 2008. It was meant to
provide a regulatory framework for the geological professions, and is modeled after earlier Acts for, among
others, engineers, architects and accountants. The Act is not currently in force, it will be in force once the
associated Regulations have been formulated, which will be in the second half of 2009. The following is a
summary of the Act.
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From Angle Stack To Fluid And Lithology Stacks – A Case Study From Norwegian Sea.
Authors Nguyen Nam and Larry FinkSeismic amplitudes contains some additional information about lithology and pore-fluid in the
reservoir. By combining AVO intercept and gradient attributes along an angle of rotation, an optimal seismic
stack can be designed to provide maximum discrimination between either fluids or lithologies. The fluid stack
is an optimal stack for enhancing fluid effects in the seismic data. This stack is used to highlight hydrocarbon
reservoirs. A lithology stack is an optimal stack for enhancing lithology variations where fluid effects are
removed or reduced. This stack is used for mapping instances of sand.
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Variation In The Orientation Of The Maximum Horizontal Stress Across The Sarawak Basin, Offshore Eastern Malaysia
Authors Adrian White, David Castillo, Marian Magee and Andy FirthIt is vital to consider the contemporary stress field during well planning because it can be misleading
to assume that regional trends will be valid for a field without evaluating specific offset well data from that
field. The Sarawak Basin, Offshore Eastern Malaysia, is a case where drastic horizontal stress azimuth
variations are observed from the north to the south and from the east to the west of the basin. This complex
tectonic nature makes it especially important to understand the stress orientations that occur in each field. As a
means of illustrating the importance of understanding the stress field, wellbore stability analyses are essential
in determining drilling parameters and such studies rely heavily on accurately constrained maximum
horizontal stress (SHmax) azimuths.
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Geomechanical Applications For Integrated Exploration And Development Drilling And Production Optimisation
More LessWellbore instability and the risk of sand production are issues that can have serious impacts on
successful field development. Accurate geomechanical models were constructed to limit the risk of these
problems in the Jengka and Muda fields, Malay Basin. The aim was to determine drilling and completion
constraints, from a geomechanical perspective, for further exploration and development of the Jengka and
Muda fields. Analyses helped to determine drilling mud weights for different wellbore trajectories, casing
designs, the sanding risk associated with different completion strategies, optimal perforation orientation and
quantify sand-free drawdown and depletion.
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Organic Geochemistry And Thermal Maturity Of Madbi Formation, Shabowah Oilfield, Masila Basin, Yemen
Authors Mohammed H. Hakimi, Wan Hasiah Abdullah and Mohammed R. ShalabyThe East Shabowah Oilfields in the Masila Basin is one of the most productive oilfields in the
Republic of Yemen (Fig.1). The Masila Basin contains sediments of Jurassic and younger age. The Madbi
Formation lies conformably on the Shuqra Formation (Beydon et al., 1998). Madbi, Shuqra and Naifa
Formations together make up Amran group (Fig.2).
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Application Of Non-Conventional Analytical Techniques To Coaly Petroleum Source Rock Evaluation
Authors Wan Hasiah Abdullah and Peter AbolinsPetroleum geochemists frequently depend on a limited number of techniques for assessing the source
rock potential of coal-bearing strata. Such widely used techniques include TOC (Total Organic Carbon),
Rock-Eval, vitrinite reflectance and, to a lesser degree, PyGC, visual kerogen typing, and biomarkers.
Amongst these, the technique that provides the best balance between information gained, rapidity of analysis,
and cost effectiveness is Rock-Eval. However, this technique has been cited by some workers as inadequate to
evaluate oil-generating potential of coals. As such, alternative techniques, or integration of a number of
techniques, are considered appropriate to enhance source rock evaluation of coaly petroleum source rocks.
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A New Stratigraphic And Structural Model For The Miri Field, Onshore West Baram Delta, Sarawak
Authors Yuniarti Ulfa and Zuhar Zahir Tuan HarithThe Miri Formation is a siliciclastic sequence consisting of a succession of coarsening upwards claysand
packages where the sandstones form important oil reservoirs in the Baram Delta Province. The Middle
Miocene Miri Formation, which crops out in the town of Miri in northeast Sarawak on and around the
topographic feature called Canada Hill.
The outcrops illustrate a complex structural geology and stratigraphy. Many authors on various
aspects have studied these outcrops. However the definite stratigraphy and the structural model of the area
comprising the Miri Oil Field are still questionable today.
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Study On Complex Resistivity Of Rock Cores At 100 Hz - 200 Khz
Authors Hilfan Khairy, Zuhar Zahir Tn. Harith and Umar FauziStudy of complex resistivity was accomplished on sandstones rocks which have different porosity and
permeability. The experiment was designed to measure resistivity response in frequency range of 100 Hz to
200 KHz. The confining pressure was applied from 1000 psig until 3000 psig while the saturations were
increased gradiently. Complex resistivity and dielectric permittivity result are presented in this paper together
with their respective analysis on saturation changes, pressure, porosity and permeability.
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Analysis Of Fractured Carbonate Reservoir (Naft-Safid Field) Using Image Logs
By H. SeifiThe key to successful exploration in fractured reservoirs is to predict where natural fracturing is
abundant. Therefore, the use of borehole imaging technology to locate fractures and determine the geometry
of the existing fractures, lateral and vertical distribution of productive fractures, fracture quality and
hydrocarbon potential, prior setting casing is an essential element in evaluating the economics of any given
well.
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3D Seismic Mapping And Modern-Day Slope Morphology Of The South Gabon Basin, Offshore West Africa
Authors Nurhuda Jamin, Christopher Jackson, Lidia Lonergan and Howard JohnsonThree-dimensional seismic data is used to describe the detailed morphology of a 3085 km2 area of the
modern-day slope within the South Gabon Basin, offshore West Africa. A number of features are recognised
which document gravity-flow or oceanographic current-related depositional processes (e.g. slope gullies,
channel-levee complexes and sediments waves), and the escape of fluids from within the basin-fill (e.g.
pockmarks).
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Reconstructing Mixed Fluvial-, Tide- And Wave-Influenced Clastic Coastal Depositional Systems In The Early Miocene, Nyalau Formation, Sarawak Basin.
The Early Miocene (Cycles I-II) of the southwestern Sarawak Basin (Tatau-Balingian-Tinjar
Provinces) is comprised of thick (>6 km), vertically stacked successions of alluvial plain, coastal plain, coastal
and offshore depositional systems. The lower coastal plain and coastal deposits are most variable having
formed in a wide range of sub-environments.
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Petroleum Source Rock Evaluation Of The Sebahat And Ganduman Formations, Dent Peninsula, Eastern Sabah
Authors Khairul Azlan Mustapha and Wan Hasiah AbdullahThe Sebahat and Ganduman formations of Miocene-Pliocene age comprise part of the Dent Group.
The onshore Sebahat and Ganduman formations form part of the sedimentary sequence within the Sandakan
Sub-Basin which, to a large extent is located in the southern portion of the Sulu Sea off eastern Sabah. The
Ganduman formation lies conformably on the Sebahat Formation. The shaly Sebahat Formation represents the
distal facies of a holomarine deposit while the sandy Ganduman Formation represents the proximal unit of a
fluvial-deltaic system (Ismail Che Mat Zin, 1994). In the offshore, these formations are currently being
investigated for their respective hydrocarbon potential. However, the available data on probable source rocks
and their quality is sketchy. Thus, the present study has been undertaken to evaluate the oil-generating
potential of the sediments from these two formations. The analyses performed include determination of Total
Organic Carbon (TOC) content, bitumen extraction, Rock-Eval pyrolysis, Pyrolysis-GC, vitrinite reflectance
and maceral analysis.
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