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Exploration strategies for complex fault block reservoirs in the Subei basin
- Source :
- Petroleum Science. 4:30-35
- Publication Year :
- 2007
- Publisher :
- Elsevier BV, 2007.
-
Abstract
- The geological background of the Subei basin is that of small relief subsidence, low geothermal gradient, multi-sedimentary hiatuses, intense reconstruction of the basin, frequent magmatic activity, and a unique combination of source rock and reservoir. This geological background resulted in characteristics such as many small fault blocks, multiple oil-bearing formations, scattered oil distribution, mini- to small-sized reservoirs, and difficulties in exploration. Aimed at such characteristics, an effective exploration strategy was adopted, and the oil reserves, production and economic benefits of the Jiangsu oilfield were significantly increased. This exploration strategy included understanding the hydrocarbon generation mechanism of source rocks, progressive evaluation of oil resources, comprehensive research on the faulted systems, the distribution of oil reservoirs and their controlling factors. The techniques used included integration of acquisition, processing and interpretation with 3-D seismics as the core technology, trap description and evaluation, directional drilling and cluster drilling, integration of cuttings logging, gas chromatographic logging and geochemical logging, and integration of early reservoir description and progressive exploration and development. This strategy could be guidance for other complex fault blocks.
- Subjects :
- Petroleum engineering
Directional drilling
Energy Engineering and Power Technology
Drilling
Geology
Subsidence
Structural basin
Geotechnical Engineering and Engineering Geology
Geophysics
Fuel Technology
Source rock
Geochemistry and Petrology
Oil reserves
Economic Geology
Fault block
Geothermal gradient
Subjects
Details
- ISSN :
- 19958226 and 16725107
- Volume :
- 4
- Database :
- OpenAIRE
- Journal :
- Petroleum Science
- Accession number :
- edsair.doi...........b2cdd40c9cb472d32ac80e49c1dc13fb