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IPTC 2012:International Petroleum Technology Conference
- Conference date: 07 Feb 2012 - 09 Feb 2012
- Location: Bangkok, Thailand
- Published: 07 February 2012
61 - 80 of 358 results
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Ensuring Global Offshore Workforce Safety and Competence by Integrating National Regulatory Frameworks with International Industry Standards
More LessGovernments of develo ping oil a nd gas provinces are committed to en sure that their nati ons maximise all the
benefits of b eing a hydrocarbon producing country. They seek to be progressive where best practice in skills,
qualifications and workforce development is adopted. They seek global recognition for their commitment to building
a safe and skilled workforce for their oil and gas industry using world class standards.
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Validating of Reservoir Connectivity and Compartmentalization Through the Use of the CO2 Compositional Gradient, Mass Transportation Simulation, and Asphaltene Analysis
More than 40% of the world's conventional gas reserves are in reservoirs that contain significant amounts of H2S and CO2.
The presence of these gases results in a number of challenges for the Field Development Plan (FDP). For a field with multiple
fault blocks with unknown fault transmissivity, a key challenge is to understand the field connectivity and
compartmentalization which impacts the ability to drain the reserves.
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Well Productivity Prediction for Laminated Reservoirs Using Borehole Electrical Image Logs
Authors S. Chokthanyawat, S. Daungkaew and S. AthichanagornDue to increasing costs in hydrocarbon exploration, formation evaluation needs to be efficient in order to avoid excessive
expenditures. Proper reservoir characterization in thinly laminated reservoirs is a key to successful field development. These
thinly laminated reservoirs are complex due to their vertical heterogeneity. As a result, there is low resistivity contrast between
water and hydrocarbon bearing zones when standard resistivity logs are used. Thus, it is crucial to deploy a high resolution
formation evaluation in order to capture reservoir pay and detect hydrocarbon zones.
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New Phase of Formation Evaluation in the Gulf of Thailand
More LessThe Songkhla field in the southern Gulf of Thailand was put on production by CEC International (Thailand) in early 2009.
As with any relatively small field development, it was important to optimize capital investment and formation evaluation
technologies selected in order to minimize risk and total cost by making the proper field development decisions.
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Successful CTU Catenary and Well Test Operation on BY Drilling Platform
Field BY Coiled Tubing (CTU) Operation comprised of 2 wells to be cleaned out and perforated that are A1 and A4.
These two wells target reservoir was untapped and has good potential of increasing gas production rate from BY
Field.
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Seismic Amplitude Loss Compensation for Future Seismic Reservoir Characterization Studies in Peciko Field - Indonesia
Authors R. Brahmantio, A. Kusuma, F. Bertini, J. Dufour, B. Paternoster and S. LeclairThis paper describes a post-stack methodology to compensate the amplitude loss prior to commencing further seismic
reservoir characterization studies in Peciko field. The available 3D seismic data shows that the high frequency part (25-55 Hz)
of the seismic signal contributes more significantly to the variability of extracted wavelet amplitude than the low frequency
part (5-25 Hz) and within the high frequency part, the amplitudes of the extracted wavelets correlate positively with the RMS
amplitude of seismic traces from which the wavelets have been extracted.
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Challenges in Determination of Water Content and Condensed Water in a Multi-stacked Sour Gas Field with High CO2 Content Offshore Malaysia
Authors Wong Tiong Hui, Rahim Masoudi, Jared Philpot and Mohamad OthmanThe amount of condensed water should be carefully estimated in gas development plans, especially for fields with high CO2
content. This may affect the design of the well, surface facilities such as water treatment equipment and CO2 removal units,
and flow assurance and corrosion control strategies. However, reliable prediction of the water content of gas with high CO2
level in contact with formation brine is still a challenge.
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Targeted Completions Change Economics in Unconventional Reservoirs
Authors Charles H. Smith and Eli MenendezOne of the greatest challenges in any horizontal completion is the need to have efficient completion techniques that will
minimize the cost of the completion. Traditional techniques that only rely on systematic perforation and fracture treating
techniques do not allow the operator to accomplish any understanding of the problems involved in these completions.
Horizontal completions are achieved by perforating at periodic intervals and applying the same fracture treatment to each one
of the perforated segments of the well.
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Kick Mechanisms and Unique Well Control Practices in Vugular Deepwater Carbonates
More LessThe standard well control training drillers receive in the industry prepares them to respond to an influx that occurs during
underbalanced conditions. The mechanism through which hydrocarbon may enter the wellbore following a vugular loss can
differ from this. One potential result is that the influx may not be detected as early as that which occurs during a
conventional underbalanced condition. The purpose of this paper is to provide a model to explain the unique mechanism
through which kicks may occur following vugular losses, as well as effective recognition and response practices that are
consistent with that model.
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Concepts in Gas Compressor Station Configuration
Authors Rainer Kurz and Matt LubomirskyThe number of compressors installed in each compressor station of a pipeline system, as well as their arrangement, has a
significant impact on the availability, fuel consumption and capacity of the system. This paper discusses the impact of the
type and arrangement of turbomachinery equipment used in compressor stations.
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Managing Export Manifold to Ensure Gas Deliverability
Authors A. Priambudi, R.N. Baraba, N.W. Tranggono and B. AryantoThe Badak Export Manifold (BEM) is a complex manifold to gather the entire gas delivery from upstream fields and to
deliver hydrocarbons to Liquefied Natural Gas (LNG) plant and to domestic commercial sites, manufacturing fertilizers and
chemicals. Besides the function as gas processing facilities, the duties of the export manifold are to maintain pressure,
distribute gas flow, implement off take logic during shut down and coordinate gas delivery. The BEM is the beginning of
four main pipelines work in parallel configuration to allow flexibility of the gas delivery and to maintain gas composition
within acceptable specification.
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Risk Based Inspection (RBI) of Aboveground Storage Tanks to Improve Asset Integrity
More LessKuwait Oil Company (KOC) has 85 crude oil aboveground storage tanks in its Tankfarms for the storage of crude oil prior to
export. These tanks have storage capacities ranging from 162,000 to 597,500 bbl. (US). Hydrocarbons leaks / spillages
resulting from tank failures, if any, could be very expensive and could pose serious fire hazards apart from major
environmental issues. Therefore, in order to carry out a comprehensive assessment of the tanks to prevent any impending
failure, KOC decided to adopt Risk Based Inspection (RBI) approach to evaluate the risks associated.
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Riserless Vertical Drilling Operations using Downhole Motors in the Nankai-Trough Seismogenic Zone
Authors Y. Shinmoto, Y. Kido and K. WadaThe Nankai-Trough, which is located south of the main island of Honshu, Japan and extends 900 km offshore, is a
subduction zone with large amounts of deformed trench sediments with seismic activity and a good example of an
accretionary prism. At extreme ocean depths, water forms ice that has, in some instances, trapped methane in its crystalline
lattice, forming gas hydrates so that the Nankai-Trough contains a large amount of gas hydrate formations.
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3D-VSP and Surface Full-azimuth Seismic Integrated Study in Daqing Oil Field
Authors Yanpeng Li, Yun Ling, Yuanzhong Chen, Jun Gao, Gang Xu and Fangdong ChuAlong with the progress of VSP techniques, especially the improvement of downhole geophone manufacture and VSP data
processing methods, now the survey mode has developed from zero offset VSP, offset VSP to Walkaway-VSP, Walkaround-
VSP and 3D-VSP corresponding to different geological objectives. VSP techniques have obtained partial success in parameter
estimation, high precision imaging and reservoir characterization, but obtained dataset is range limited and imaging still need
to be improved. In order to broaden the range of survey and expand the advantages of VSP to surface seismic, large array 3DVSP
and full-azimuth surface seismic survey were carry out in XJWZ area of Daqing oil field.
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Establishing and Enhancing Reservoir Injectivity in the B8/32 asset, Gulf of Thailand
Authors Pongpak Taksaudom, Mark J. Ogier and Mauricio VillegasB8/32 is an oil and gas asset located offshore in the Gulf of Thailand. The asset consists of two main operating areas known
as Benchamas and Tantawan fields. These fields are divided into several sub-operating areas where the wellhead platforms
have been installed e.g. BEWA, BEWB, TAWA, TAWB, etc. Waterflooding has been in operation since late 2000 and has
continued to increase with the increase of proven reservoir connectivity.
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Conversion of Olefins in LPG through Hydrogenation
Authors Gurulakshmanan G, Balaji V and Ganesh DThe objective is to remove undesirable components namely olefins present in the Liquefied petroleum gas (LPG) stream in order to match the
quality pertaining to environmental aspects and safet y requirements which are achieved by processing the unsaturated hydrocarbons to the
saturated hydrocarbon product.
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Geophysical Reservoir Characterisation and Modeling of Marrat Carbonate Reservoir in Minagish Field, West Kuwait
As a part of an integrated field development study, comprehensive seismic interpretation, velocity modeling and inversion
were carried out for the Minagish Marrat reservoir. The geophysical lithology-porosity effects were imaged and quantified
for the first time, and used for detailed reservoir characterization and 3D geological modeling.
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Seismic Exploration for Tight Gas Sand: A Case Study in Sulige Gasfield
Authors Yijun Zhou, Chaoquan Peng, Lingbang Zeng, Min Qiang, Qingjia Tong, Hongwei Li and Xinhua ZhangSulige Gasfield is the biggest gasfield found so far in China. The pay zone is He8 formation of lower-Permian. It is braided
river sediment and the main reservoir is tight sandstone. The seismic exploration faces the challenges of thin bed, tight gassand
and strong lateral heterogeneities.
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Workflows for Quantitative 4D Seismic Data Integration: A Case Study.
This paper describes the full cycle of 4D seismic data integration comprised of workflows related to 4D data analysis, quality
control of reservoir models and reservoir model updating using both 4D seismic and well production data. These workflows
are applied to a deepwater field, where high quality 4D seismic data is available. In the first step, we analyze 4D seismic data
and extract multiple attributes to image changes in reservoir properties. Next, we apply different workflows which link 4D
seismic data with the reservoir model. Finally, we update the reservoir model automatically by simultaneously honoring the
4D seismic and well production data. We use a novel approach which incorporates 4D seismic amplitude differences without
explicitly modeling the full physics in a joint history matching workflow.
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Carbon Dioxide Storage Potential in the North Sea
Authors Nalinee Chamwudhiprecha and Martin J BluntThe feasibility of carbon dioxide (CO2) injection into an extensive aquifer in the North Sea is assessed. The impact of seal
permeability, horizontal permeability, perforation interval, number of wells, aquifer size and cap rock size on the effectiveness
of large-scale storage is assessed. A compositional numerical simulation is performed in the period of 50 years (30 years of
injection and 20 years post-injection). We study volumes equivalent to the emissions of a large power station in the UK, 10
Mtonnes/year and find the necessary aquifer dimensions, cap rock size and horizontal permeability to allow safe storage
assuming that the pressure increases by no more than 10%.
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