Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Tianji, Xu Bingjie, Cheng Zhongmin, Shen Hongying, Lu |
| Copyright Year | 2013 |
| Abstract | Since the favorable conditions of gas migration and accumulation in the deep Xujiahe formation of west Sichuan depression, a couple of high-yielding gas wells have been developed successfully, prime examples include X851, X856, X2, X3 and X10, which have confirmed the great exploration potential within the area. However, the appearance of some water production wells, such as CX565 and X201, has led to uncertainty within the reservoir prediction. Seismic signal based Time-frequency analysis has been used to distinguish the gas reservoir from water-bearing reservoir in Xujiahe formation. When the seismic wave propagates in the gas and water reservoir, it is difficult to identify the dynamic differences, in terms of amplitude, frequency and energy in the time field. Given that time-frequency analysis allows transformation of the seismic data from the time field into the time-frequency field, it is employed to highlight the seismic responses of gas reservoirs. Usually, the characteristics of ‘low-frequency shadows’ and ‘high-frequency attenuation’ are very obvious in gas reservoirs, while there is no such indication in water reservoirs, which can help to distinguish the gas reservoir from water reservoir. In this paper, we present the theoretical approaches and the in-situ model analyzing results, as well as, a case study. The application of time-frequency analysis on the deep Xujiahe formation in the western Sichuan Depression, provides robust indications for reservoir prediction of gas and water differentiation and validates investigation. |
| Starting Page | 439 |
| Ending Page | 450 |
| Page Count | 12 |
| File Format | |
| ISSN | 22135812 |
| Journal | Acta Geodaetica et Geophysica Hungarica |
| Volume Number | 48 |
| Issue Number | 4 |
| e-ISSN | 22135820 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2013-09-20 |
| Publisher Institution | Quarterly of the Hungarian Academy of Sciences |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Time-frequency analysis Frequency division section Wavelet transform Instantaneous amplitude spectrum Geophysics/Geodesy Gas and water reservoir differentiation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Building and Construction Geology Geophysics |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|