- Home
- Conferences
- Conference Proceedings
- Conferences
IPTC 2007: International Petroleum Technology Conference
- Conference date: 04 Dec 2007 - 06 Dec 2007
- Location: Dubai, United Arab Emirates
- Published: 04 December 2007
41 - 60 of 267 results
-
-
Optimising Fluid Choices for Landfarm Applications
More LessA well established method for bioremediation of drilled
cuttings and adhering base fluids is the use of landfarming or
composting. All base fluids are amenable to this method.
However, degradation of organic materials takes place over
different timescales, and there is potential for toxic residues to
affect the future use of land to which cuttings have been
applied. This paper describes a project where a degradation of
a range of different commonly use base fluids was
investigated and the use of various commercial accelerants
was also tested to determine their impact on degradation rates.
It subsequently describes an investigation into plant and
animal toxicity of soils to which base fluids have been applied.
-
-
-
Impact of Rock Compaction on NSO Gas Field Performance
Authors P. Pathak, S.I. Wirya, M. Catanzano, H.D. Prickett and D.T.M. MangunsongThe North Sumatra Offshore (NSO) field is a large gas
field that supplies gas to the P. T. Arun Liquified Natural
Gas (LNG) plant in Aceh, Indonesia. The field came onstream
in 1999 and produces about 450 MMscf/d
currently. The field has produced about 34% of the
Original Gas In Place (OGIP) as of 1/1/2007, and the
ultimate recovery is expected to be around 75%. The
producing carbonates have an average porosity of 23%
with zones of higher porosity at the top of the reservoir.
Geomechanical testing of Malacca limestone cores
indicated that the rock has high compressibility and
suffers elastic and significant plastic deformation when
mechanical stresses are increased.
-
-
-
Reservoir Fluid Characterization Using Downhole Fluid Analysis in Northern Kalimantan, Indonesia
Authors A. Halim, N. Orban, E. Haryanto and C. AyanFluid identification is an important objective to resolve key
uncertainties of a complex reservoir prior to perforation in the
developed fields of Eastern Kalimantan. This paper explains
how using a formation tester equipped with two downhole
fluid analyzer modules helped understand reservoir fluid
characteristics, identify production zones and optimize
perforation zone selection.
-
-
-
Case Study: Integrated Study for Assessing Production Enhancement From a Matured Large Carbonate Reservoir
Authors E. Al-Maraghi and C.V.G. NairAn integrated study has been conducted to build a reservoir
management tool to evaluate feasibility of enhancing the
production and maintaining the plateau rate long for the Umm
Gudair field, a large carbonate reservoir located in Kuwait and
the Partitioned Neutral Zone. A comprehensive data gathering
campaign was made during initial phase of infill drilling and
an appreciable volume of rock and fluid data were obtained
which assisted the geoscientists and engineer in developing an
improved static and dynamic model.
-
-
-
Hawiyah NGL Recovery Project: Operational Considerations During Project Design
More LessSaudi Aramco new NGL Recovery Project has been
managed by an integrated team from project managements and
proponent. Project management team members have used their
project management’s techniques and expertise to maintain
quality, budget and schedule. Proponent team members have
enriched the project with the necessary technical and field
experience in order to capture and implement all operational
requirements during project design.
-
-
-
ALARP Demonstration and Its Level of Intensification
By B. DasWith the increasing use of ALARP principles in oil and gas
safety studies to reduce the tolerable risks to As Low As
Reasonably Practicable level, there is a need to understand the
use of those principles with respect to (a) the level of
uncertainty of data and (b) the risk criteria.
-
-
-
An Overview of Reservoir Quality in Producing Cretaceous Strata of the Middle East
Authors S.N. Ehrenberg, A.A.M. Aqrawi and P.H. NadeauA compilation of average porosity and permeability data
for Cretaceous petroleum reservoirs of the Middle East
reveals important differences between the two main
tectonic provinces present in this region. The Arabian
Platform tectonic province is characterized by strong
inverse correlation of average porosity with present
depth in both carbonates and sandstones, whereas the
Zagros Fold Belt, containing almost exclusively
carbonate reservoirs, has distinctly lower porosity overall
and no porosity-depth correlation.
-
-
-
Formation Pressure While Drilling Data Verified With Wireline Formation Tester, Hibernia Field, Offshore Newfoundland
Authors V.K. Mishra, S. Pond and F. HaynesPressure measurement plays a critical role in the
development and management of compartmentalized
reservoirs. Conventionally, pressure data have been
recorded using wireline formation tester (WFT) tools. In
highly deviated or horizontal wells, wireline testers must
be conveyed on drill-pipe at considerable expense and
often with operational risk and limitations.
-
-
-
Understanding of Fluid Flow Mechanism in Porous Media of EOR by ASP Flooding From Physical Modelling
More LessThe fluid flow mechanism in porous media of enhanced oil
recovery by Alkli/ Surfactant/ Polymer (ASP) flooding is
investigated by measuring production performance, pressure
distribution and saturation distribution through installing
differential pressure transducers and saturation measuring
probes in a physical model of vertical heterogeneous reservoir.
-
-
-
“Don't Let the Temperature Log Fool You:” False Indications of Height Containment From Case Studies in a Tectonically Stressed Environment
By G.C. DozierFracture height prediction and evaluation is critical in
understanding the effectiveness of a fracturing treatment.
Volumetrically, fracturing must adhere to mass balance
equations. Therefore, proppant placed in the fracture must be
accounted for in the creation of fracture height, width, and
length. In many cases, excessive fracture height generation is
at the expense of fracture width and length creation. As a
result, in fracture treatments where excessive height growth is
believed to have occurred, premature screenouts are usually
the result of insufficient fracture width. This unfortunate
circumstance creates an operational strain and productivity
underperformance for wells.
-
-
-
Production Logging in Difficult Well Configurations
Authors K.I. Ojukwu, J. Edwards, K. Cig and K. ChangProduction logging is difficult in complex well designs such as
horizontal multilateral (ML) wells with jagged level-two exits.
The ML exits can obstruct the access of logging tools due to
damage around the milled windows. Once inside a low-flow
high-water cut reservoir, the challenge becomes measuring an
oil inflow profile in stratified flow.
-
-
-
Challenging Drilling Applications Demand New Technologies
Authors M. Jellison, R.B. Chandler, G. Prideco and J. ShepardThis paper provides an update on recent developments and
highlights some problem areas associated with the latest
generation of extreme drilling applications. Deepwater,
extended-reach (ER) and ultra-deep (UD) wells dictate large
spread rates that can benefit from reduced tripping times.
-
-
-
Application of Artificial Neural Networks to Downhole Fluid Analysis
Authors P. Hegeman, C. Dong, N. Varotsis and V. GaganisReservoir characterization and asset management require
comprehensive information about formation fluids. Obtaining
this information at all stages of the exploration and
development cycle is essential for field planning and
operation. Traditionally, fluid information has been obtained
by capturing samples and then measuring the
pressure/volume/temperature (PVT) properties in a laboratory.
More recently, downhole fluid analysis (DFA) during
formation testing has provided real-time fluid information.
However, the extreme conditions of the downhole
environment limit the DFA tools to measuring just a small
subset of the fluid properties provided by a laboratory.
Nevertheless, these tools are valuable in predicting other PVT
properties from the measured data. These predictions can be
used in real time to optimize the sampling program, help
evaluate completion decisions, and understand flow assurance
issues.
-
-
-
Multi-Azimuth 3D Provides Robust Improvements in Nile Delta Seismic Imaging
Authors J. Keggin, M. Benson, W. Rietveld, T. Manning, P. Cook, E. Jones and C. PageSince gas was first discovered in the Nile Delta in late 60’s,
most exploration programmes have focussed on shallow
Pliocene reservoirs, where gas can clearly be seen as bright
events on excellent quality seismic data and where exploration
success has been very high. The petroleum geology of the
deeper pre-Piocene section is fundamentally no different to
that seen in the Pliocene, where potential reservoirs consist of
sand prone channel systems originating from the Nile. Why
then, have we been deterred from exploring in the deeper
section?
-
-
-
Ontology-based Warehouse Time-Depth Data Modelling Framework for Improved Seismic Interpretation in Onshore Producing Basins
Authors S.L. Nimmagadda, H. Dreher and M.R. RajabTime-to-depth conversion has been one of the objectives of
seismic interpretation. There is no straightforward procedure
that derives a depth section from a seismic section. This is due
to the fact that seismic reflection times depend upon the
positions and shapes of the reflecting interfaces. The velocity
data patterns are often complex, affecting geological
interpretations. Depth conversion takes considerable amount
of an analyst's time and leaves concerns about its accuracy.
This uncertainty in depth conversion procedure significantly
contributes to pitfalls and ambiguities in depth conversion
velocities.
-
-
-
Reservoir Management Aspects of Early Waterflood Response After 25 Years of Depletion in the Valhall Field
Authors G. Tjetland, T.G. Kristiansen and K. BuerValhall is a fractured chalk reservoir in the Norwegian sector
of the North Sea which has been producing under compaction
drive since 1982. Continuous drilling has taken place the last
25 years to both develop the field and replace failing wells.
-
-
-
Forces Driving Oil and Gas Demand Cycles
Authors A.M. Zaid and M. Al-DousariOil and gas prices have historically been very volatile taking
the demand for oil through wild cycles and have taken the
economy of the world through the cycles with them. Oil
producers and consumers tried to dampen the cycles and
establish a market with softer fluctuations; however, their
efforts were largely unsuccessful. OPEC strategy for dealing
with the possibility of declining oil prices in the future appears
to be the same old one that failed to stem the price fluctuations
of the past. OPEC appears to be setting themselves up for yet
another failure and the old cliché "history repeats itself" seems
to be in order.
-
-
-
Decline Curve Analysis for Naturally Fractured Gas Reservoirs: A Study on the Applicability of “Pseudo-time” and “Material Balance Pseudo-time”
Authors S. Gerami, M. Pooladi-Darvish and H. HongRobust techniques for analysis of production data of single
porosity gas reservoirs have been developed and widely used
for many years. These methods range from the traditional
Arp’s decline method to modern type-curve matching. The
more recent techniques are based on the use of pseudo-time
for linearization of gas-flow equations, and material balance
time to account for variable operating conditions.
-
-
-
Energy Efficient Operation of Gas Export Systems
Authors V.S. Nørstebø, L.E. Bakken and H.J. DahlThe gas transport system on the Norwegian continental shelf
(NCS) consists of 7 800 km of pipelines and is the largest
offshore network of its kind in the world. Natural gas is
processed at treatment plants in Norway, and dry gas exported
through pipelines to customers in the UK and continental
Europe. These customers have the opportunity to make
varying gas delivery nominations, and meeting such sales gas
commitments is important.
-
-
-
Planning a Deepwater Well for All Seasons,* Platina-2, A Combined Appraisal / Development Well
Authors I. Brown, M. Ramlogan and T. McMurrayDue to the punitive cost of drilling deepwater wells with
5th/ 6th generation rig rates flirting around $500,000/day,
the need arose within the BP Angola Business Unit to
plan a combined appraisal / development well as the first
well on Platina West; a field which exists on seismic but
remains unconfirmed with a well.
-