Layer | Fill | Outline |
---|
Map layers
Theme | Visible | Selectable | Appearance | Zoom Range (now: 0) |
---|
Fill | Stroke |
---|---|
Collaborating Authors
Delhi
In 2020, we were set the ambitious objective of processing 270,000 sail line km of regional 2D lines to create a 2D dataset (Whiteside et al, 2013 & O’Keefe 2017) which would results in a 3D regional screening volume totaling in excess of 550,000 km. This involved the matching and merging of more than 4000 lines of 2D seismic, each with numerous intersections, all from various vintages of acquisition and processing to create a single contiguous dataset that is designed for regional screening. To add further complexity, this data was to be processed within 1 year, including accessing the data from the government database to delivery of final products. The data was processed in Delhi, India with supervision from the UK, during a time when COViD was rife. This paper will discuss the many challenges in creating and processing large volumes of data and the steps associated with generating a 3D volume over a vast area.
- Geophysics > Seismic Surveying > Surface Seismic Acquisition (0.93)
- Geophysics > Seismic Surveying > Seismic Processing > Seismic Migration (0.70)
- Asia > Sri Lanka > Palk Strait > Mannar Basin (0.94)
- Asia > Sri Lanka > Laccadive Sea > Mannar Basin (0.94)
- Asia > Sri Lanka > Bay of Bengal > Mannar Basin (0.94)
- (4 more...)
Mrigya Fogat is a data scientist at Halliburton based in New Delhi, India. She graduated with a degree in petroleum engineering from Rajiv Gandhi Institute of Petroleum Technology (RGIPT) and was awarded the institute and president's gold medals. In her present role, she works by integrating her core subject knowledge and data science to come up with efficient and novel solutions for challenges faced in the energy industry. Fogat is an active member of SPE and was the president of the SPE student chapter at RGIPT. She is passionate about affordable, accessible, and sustainable energy.
Abstract Evolution over decades and progress over last five years have been made in many topics of interests to rock mechanics, geosciences, physics, and multi-disciplinary interactions in underground research laboratories and development facilities, as well as in underground energy recoveries and environmental assessments. Rock mechanics and geotechnical engineering advances are associated with quantifications of disturbed/damaged zones and rock alternation and bursting processes and creation of underground spaces and accesses associated with deepening of shafts and lengthening of tunnels. Geophysics and earth sciences advances are associated with continuing collections of seismic, electromagnetic, and gravitational data and conducting various thermal, hydrological, mechanical, chemical, and biological investigations, both separately, simultaneously, and in different coupled ways. Astroparticle and underground physics advances are associated with many long term experiments to detect rare events and needs for increasing larger and deeper halls to accommodate next generation detectors, shielings, and isolations. There are also increasing interesting in underground settings to explore multidisciplinary and inter-disciplinary sciences and technologies. Energy and environmental sciences and assessments have evolved from traditional oil and gas focuses to recent activities associated with green resources and alternative recovery/disposal strategies. The evolution and progress of these interdependent and related fields are discussed in this quadrennial Congress. Introduction Underground studies have been conducted primarily to evaluate capacities of different formations to either isolate wastes or to explore resources at depths. Many researches are conducted in sites for radioactive waste assessments over geological time scales, for physics detectors for rare event detections, for multi-disciplinary collaborations, and for energy resource productions and for environmental isolations. In this paper, we use the term Underground Research Laboratory (URL) for any facilities dedicated to all these research activities. We focus on recent advances in understanding various processes conducted in URLs. The International Society for Rock Mechanics (ISRM) has established an URL Networking Commission dedicated to these studies in various workshops, in Asian Rock Mechanics Symposia (ARMS), in EUROCK annual meetings, in regional ISRM-sponsored symposia, in American Geophysical Union (AGU) meetings, in American Physical Society meetings, and in other topical meetings in the past few years. The ISRM Commission on URL Networking was formed in 2011 after the 12th ISRM Congress in Beijing, China. Before the formation of this Commission, a literature review on the URL studies was presented at the ARMS in New Delhi, India (Wang et al., 2010). In the following three sections, we summarize recent presentations and publications on rock mechanics and geoscience investigations, physics and multi-disciplinary interactions, and energy and environmental studies, followed by a short summary.
- Geophysics > Gravity Surveying > Gravity Acquisition (0.46)
- Geophysics > Seismic Surveying > Borehole Seismic Surveying (0.34)
- Water & Waste Management (1.00)
- Energy > Renewable (1.00)
- Energy > Power Industry > Utilities > Nuclear (1.00)
- Energy > Oil & Gas > Upstream (1.00)
- Well Drilling > Wellbore Design > Rock properties (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
- Reservoir Description and Dynamics > Reservoir Characterization > Reservoir geomechanics (1.00)
- Health, Safety, Environment & Sustainability > Sustainability/Social Responsibility > Sustainable development (1.00)
ABSTRACT: Sensors of the new type are developed for simultaneous monitoring and visualization of risk conditions for geomechanics applications to achieve an advanced safety management scheme using “color of light” as a key technology of the proposed method. These sensors are designed and built based on the new monitoring concept called “On Site Visualization” and capable of 1) sensing data and 2) visually outputting the measurement results simultaneously by using LED for workers and all concerned. This new monitoring scheme may be applied to tunneling, rock slope cutting, open-cut excavation problems, etc., whereby real-time visual presentation of monitored information may be fully incorporated to achieve an advanced safety management scheme. 1. INTRODUCTION Sensors of the new type are developed for simultaneous monitoring and visualization of risk conditions for geomechanics applications to achieve an advanced safety management scheme using “color of light” as a key technology of the proposed method. This paper first introduces the basic concept of the new scheme, On Site Visualization, and gives brief explanations of the light emitting devices developed so far. In Japan, the OSV has been applied at more than 30 locations where tunnels, slopes, bridges, open excavations etc. were monitored with light emitting sensors. The OSV was also applied successfully to improve safety management practices at Delhi Metro construction sites in New Delhi, India. The employment of the OSV enables real-time data processing and visualization on-site, so that the state of deformation, strain, inclination, earth pressure etc. can be grasped with no delay in time and is shown visually to anyone nearby as the color of light. Rationally designed use of this method could give us early warning signs, if any, and minimize risks not only during construction of underground infrastructures but also during their service time.
- Energy > Oil & Gas > Upstream (0.55)
- Construction & Engineering (0.47)
SYNPOSIS: Compiled statistics show that the fall of roof is one of the major causes of coal mine accidents, contributing 44.6% of total underground accidents in India. 136 major accidents resulted into fatalities of 840 persons during 1901 to 2007. Most accidents occur in pillar mining districts, adopting Bord & Pillar (B&P) mining method (globally known as Room and Pillar mining with specific variations). This method shares about 90% of total underground coal production in India, employing about 57% of total workforce. Understanding ground control and related rock mechanics have been primordially the greatest challenge while undertaking exercises of rock excavation (primarily by blasting). In an effort to phase out timber supports usage, roof bolting occupies a pride of place. However, the application of cement bolting in India has been fallen short of planned targets of safety and productivity. The geotechnical issues are largely compounded by inventories and reinforcement procedures put in place. Keeping above aspects in view, this paper takes into account the prevailing geo-mining conditions. A simplified approach to deal with the roof control problems, presented here, consists of roof support design methodology using three dimensional numerical modelling, estimating the extent of a roof failure zone and respective rock load and finally linking with adequate support-safety factor. The approach is site-tested in many coal mines. Two representative case studies (moderate and high depths) are briefly cited, where suggested patterns of bolting were implemented. Fortuitously, the economics presented also suggests that resin reinforcement is need of the hour for Indian Coal Mines. 1.0 INTRODUCTION To improve the safety and to reduce fatigue of human beings, it was agreed upon in the recently concluded 10th Conference on Safety at New Delhi, India, that manual loading operations should be phased out in coal mines by identifying and introducing appropriate technologies in each locales, subject to understanding geo-mining conditions [1]. However in steep deposits, it is difficult to go for mechanisation with Bord & Pillar (B & P) pattern. Roof bolting with mechanised roof bolting machines will not only prevent workers to be exposed to hazardous conditions during supporting, but also will pave the way for mechanisation belowground in India. Expectedly, it will reduce the likely-occurrence of accidents. The productivity is very low, cost of coal production is high and majority of underground coal mines are incurring financial losses. Because of compelling socio-political reasons and sometimes because of technical reasons also, underground mines have to be run or to be planned for production. We need to plan coal extraction safely and economically to make underground mines viable in India. The key issue will be improving productivity which is dismally low. To meet the demand of energy and the aspirations of India's teeming millions, the coal industry has to achieve a growth rate of above 9%. The emphasis now is laid on underground winning of coal deposits in India to meet the ever-increasing energy demand. Roof bolting can be used gainfully to mitigate many ground control problems.
- Materials > Metals & Mining > Coal (1.00)
- Government > Regional Government > North America Government > United States Government (0.46)
Managing Sulphate Reducing Bacteria (SRB) Problem Associated With Produced Water in One of the Oil Fields of Oil India Limited - A Case Study
Nihalani, M.C.. C. (Oil India Limited (OIL), Duliajan, ASSAM, India) | Verma, S.. (Oil India Limited (OIL), Duliajan, ASSAM, India) | Kumar, J.. (Oil India Limited (OIL), Duliajan, ASSAM, India) | Dubey, H.. (Oil India Limited (OIL), Duliajan, ASSAM, India) | Bharali, N.K.. K. (Oil India Limited (OIL), Duliajan, ASSAM, India) | Mandal, A.K.. K. (The Energy and Resources Institute (TERI), New Delhi, India) | Lal, B.. (The Energy and Resources Institute (TERI), New Delhi, India)
Abstract In OIL, produced water is normally disposed into Alluvium sand reservoirs at shallow depths. While the disposal depths were in the ranges of 500 – 800 m till recent times, current statutory regulations require disposal to be carried out at depths below 1,200 m to ensure minimal risk of upward migration of such disposed water. In most of these disposal wells, injectivity had been found to be comparatively lower and rapid decline in injectivity is observed even after acid / solvent stimulation. The presence of SRB was confirmed through API RP 38 standard procedure. SRB related corrosion was also observed in formation water handling and processing infrastructure. Solids generated due to high SRB activity along with high oil content and other suspended solids present was the primary cause of rapid decline in injectivity in these deep disposal wells. The entire problem was taken up for detailed study and identification of remedial measures jointly with a reputed microbial laboratory, M/s The Energy and Resources Institute (TERI), New Delhi, India. Laboratory investigations included identification, characterization and isolation of various strains of SRB using 16S rDNA gene sequencing and designing different media compositions for inoculation and culturing of SRB strains. Microbial diversity of hyper thermophilic SRB in various produced water samples collected from different points were studied in details. Through this study, suitable bactericides were identified and Minimum Inhibitory Concentration (MIC) optimized using Time Kill Test (TKT) method. The identified biocides were successfully field tested. The entire produced water from the said field is now being safely managed and disposed underground with sustained injectivity of disposal wells. The present paper discusses the results of laboratory findings and detailed field implementation data, for SRB control in the produced water disposal system.
- Energy > Oil & Gas > Upstream (1.00)
- Water & Waste Management > Water Management > Constituents > Bacteria (0.64)
- Water & Waste Management > Water Management > Lifecycle > Disposal/Injection (0.55)
Summary In this paper, the use of various pressure measurements is investigated for determining formation pressure and permeability distributions by use of the multiprobe formation testing packer and probe modules (PPM's) in horizontal wells. It is shown that reservoir pressure measurements along the wellbore give local and reservoir-scale information about how the reservoir is being depleted and how cleanup takes place. The estimation of horizontal and vertical permeabilities, skin, and reservoir pressure along the wellbore is also presented by use of interval (local) pressure transient tests. For PPM in horizontal wells, an interpretation method is presented for determining the reservoir parameters. A few interval pressure transient test (IPTT) examples are presented for formation pressure and permeability distributions, and fluid sampling. Introduction With the increasing number of horizontal wells, in addition to conventional well tests, interval tests have been conducted in many wells for formation pressure, permeability, and fluid sampling. We present the use of interval (local or sectional) pressure transient testing techniques for different reservoir and wellbore conditions in horizontal wells. Because they are dynamic and direct, pressure measurements and interval (local) transient tests provide essential information for well productivity and dynamic reservoir description, and hold critical importance for exploration as well as production and reservoir engineering. For exploration, pressure measurements and interval tests may simply show that the formation is able to produce, may permit sampling of the formation fluid, and may provide productivity index, reservoir pressure, permeability, and data for heterogeneity. SPE 53002 was revised for publication from paper SPE 39523, first presented at the 1998 SPE India Oil and Gas Conference and Exhibition, New Delhi, India, 17-19 February.
- North America > United States (1.00)
- Asia > India > NCT > New Delhi (0.24)
- Asia > India > NCT > Delhi (0.24)
- Well Drilling > Drilling Operations > Directional drilling (1.00)
- Reservoir Description and Dynamics > Reservoir Fluid Dynamics > Flow in porous media (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Pressure transient analysis (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Drillstem/well testing (1.00)
Modeling Fluid Flow in Complex Naturally Fractured Reservoirs
Kamath, J. (Chevron Petroleum Technology Company) | Lee, S.H. (Chevron Petroleum Technology Company) | Jensen, C.L. (Chevron Petroleum Technology Company) | Narr, W. (Chevron Petroleum Technology Company) | Wu, H. (Chevron Petroleum Technology Company)
This paper was prepared for presentation at the 1998 SPE India Oil and Gas Conference and Exhibition held in New Delhi, India, 17–19 February 1998.
- North America > United States (1.00)
- Asia > India > NCT > New Delhi (0.24)
- Asia > India > NCT > Delhi (0.24)
- Geophysics > Seismic Surveying > Borehole Seismic Surveying (0.94)
- Geophysics > Borehole Geophysics (0.68)
This paper was prepared for presentation at the 1998 SPE India Oil and Gas Conference and Exhibition held in New Delhi, India, 7–9 April 1998.
- North America > United States > California > Kern County (0.28)
- Asia > India > NCT > New Delhi (0.24)
- Asia > India > NCT > Delhi (0.24)
- North America > United States > California > San Joaquin Basin > Elk Hills Field (0.99)
- North America > United States > California > San Joaquin Basin > Belridge Field (0.99)
This paper was prepared for presentation at the 1998 SPE/India, Oil and Gas Conference and Exhibition held in New Delhi, India, 17–19 February 1998.
- North America > United States (1.00)
- Asia > India > NCT > New Delhi (0.24)
- Asia > India > NCT > Delhi (0.24)