| Testing work of Heidimiao reservoir of Punan oil field in Daqing began in 1967, but so far, the shallow gas of Heidimiao is still in the evaluation phase, has not been large-scale development. Pu 194-16 Block of Punan oil field located in the Punan nose-like structure belt in the south of Putaohua Oil Field. Covers an area of about 12.6 km2, Is the important basis of oil and gas potential of Heidimiao layer zone. Since 2007, Pu 194-16 Block of Punan Oil Field has carried out many times testing work, oil and gas show good, sand body distribution and characteristics of oil-water distribution research as a geological basis for oilfield development, become to promote the core and focus of exploration and development work.Based on sequence stratigraphy, sedimentary petrology, petroleum geology, such as oil and gas field development geology related theory as the foundation, to the grape oil fields of daqing have a black emperor temple reservoir as the research target, in combination with the practical data of exploration and development of the study area, use 3 d high resolution seismic prediction, reservoir inversion, AVO hydrocarbon detection, set of technical means such as neutron data analysis, after research the structure characteristics, reservoir characteristics and oil-water distribution rule in the study of geological regularity between.The results show that: Pu 194-16 Block of Punan Oil Field located in the southwest of putaohua structure to the extension of Portugal's west nose-like structure on the belt- 1. It is typical fault nose type structure traps, Putaohua west nose-like structure is cutted by No. 19 faul, and its fracture depth is larger on three layers structure chart were obvious development.According to sand body contour, H ? group is obviously better than H ? group, H ? 2,H ? 3 and H ? 5 are the best, the second is H ? 4,H ? 6. Except that H ? 1 has less than 2 m of the sand body, Other layer of sand bodies are not development. Sand of Pu 194-16 Block vertical and plane heterogeneous are standed out. And vertical thin interbed layers, the planar phase change fast. Total number of single well vertical sand body an average of 23.4, the average single drill in the thickness of 2.7m, and 21.5% of the sand body development of single well no more than 5m; Plane of isolated sand body, no connected, sand body thickness change fast.Pu 194-16 blockls tectonic, lithologic reservoir, oil and gas enrichment degree depends on the configuration sand body and local structure. A trap for oil and gas layer, sand body scale, oil and gas water can be within the local structural differentiation; Trap of aquifer, the sand body scale is small, oil and gas continuity. By constructing fine dissection, reservoir fine description, oil-water careful analysis and a series of work, the structure characteristics,reservoir description and remaining oil distribution law, on the basis of clear understanding, to carry out the relationship between oil and gas, water, clear reservoir type, in combination with regional AVO hydrocarbon detection data, after the set of neutron data, test Wells and production Wells, will study wellblock potential of oil and gas distribution is divided into three levels, and realize the prediction and evaluation areas favorable for oil and gas enrichment, for Pu 194-16 block Heidiniao layer Wells further development to provide strong theoretical basis and technical support. |
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