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Collaborating Authors
Shi, Fei
Abstract After the reservoir enters the medium-high water-cut period, due to the heterogeneity of the reservoir, the difference of fluid mobility, and the difference in injection and production, large water flow channels are gradually formed in the formation, which result in fixed streamline in the formation, and the inefficient or ineffective water circulation. Ineffective injection water circulation severely inhibits water flooding effect. Conventional tapping measures can’t change the problem of ineffective water circulation. However, the profile control technology changes the flow direction of subsequent injected water by plugging the high permeability layer or large pores, improving the water injection profile, and increasing the formation water retention rate, so as to expand the swept volume. Therefore, profile controlling technology has always been an important method water control and oil stabilization technologies for the reservoirs with thief zones. The success or failure of profile control measures depends to a large extent on thief zones identification and its description, sensitivity analysis of plugging agent performance, scientific and reasonable profile control decision-making and optimization, in addition to selection of candidate wells, optimization of construction parameters, effect prediction and effect evaluation.
- Asia > China (0.69)
- Africa (0.68)
- North America > United States (0.50)
- Asia > Middle East > UAE (0.28)
- Asia > Middle East > Oman > Al Wusta Governorate > South Oman Salt Basin > Nimr Field (0.99)
- Asia > China > Heilongjiang > Songliao Basin > Daqing Field > Yian Formation (0.99)
- Asia > China > Heilongjiang > Songliao Basin > Daqing Field > Mingshui Formation (0.99)
Research on the Law of Liquid Production Index of Bohai Typical Oilfield Based on Big Data
Yue, Baolin (Tianjin Branch of CNOOC, China Co., Ltd) | Liu, Bin (Tianjin Branch of CNOOC, China Co., Ltd) | Shi, Hongfu (Tianjin Branch of CNOOC, China Co., Ltd) | Shi, Fei (Tianjin Branch of CNOOC, China Co., Ltd) | Zhang, Wei (Tianjin Branch of CNOOC, China Co., Ltd)
Abstract The prediction of reservoir fluid production law play a key role in offshore oil field development plan design. It determines the parameter selection of pump displacement, oilfield submarine pipe capacity, platform fluid handling capacity, power generation equipment, etc. If the liquid production forecast is too low, the capacity will be expanded later, while if the forecast is too high, it will result in a waste of investment, which directly affects the fixed investment in oilfield development. Based on the statistical analysis of big data, this paper applies the dynamic data of all single wells and full life cycle of the oil field to analyze the dimensionless liquid production index (DLPI) law, and further establish the liquid production index prediction formula on this basis. Thus, the different types of Bohai plate and statistical table of the characteristics of the DLPI of the reservoir are completed. The results show that the DLPI of Bohai Sea heavy oil reservoir are following: water cut < 60 % indicates the trend is flat; water cut between 60 ∼ 80 % illustrates the slow growth (water cut 80 % is 2.5∼3 times); water cut > 80 % shows rapid growth (water cut 95% is 5.5∼6 times). The DLPI of Bohai Sea conventional oil reservoir are as following: when the water cut < 60%, the DLPI drops first, and then increase when the water cut is about 30% (the lowest point (0.7∼0.9 times)). When the water cut rise to 60%, the DLPI returns to 1 times; When the water cut is 60∼80%, it grows slowly (1.5∼2 times); when the water cut > 80 %, it grows rapidly (water cut 95% is 2∼3 times). The study may provide a guidance to the prediction of the amount of fluid in offshore oilfields, provide a basis for the design of new oilfield development schemes and increasing the production of old oilfields.
- Asia > China (0.47)
- North America > United States > Texas (0.34)
- Research Report > New Finding (0.35)
- Research Report > Experimental Study (0.35)
- Geology > Geological Subdiscipline > Economic Geology > Petroleum Geology (0.66)
- Geology > Petroleum Play Type > Unconventional Play > Heavy Oil Play (0.64)
Potential and Risk Analysis of Offshore Fractured Light Reservoir
Shi, Hongfu (China National Offshore Oil Company) | Yue, Baolin (China National Offshore Oil Company) | Luo, Xianbo (China National Offshore Oil Company) | Shi, Fei (China National Offshore Oil Company) | Xiao, Bo (China National Offshore Oil Company)
Abstract The exploration and development of offshore oilfield facing unprecedented challenges include the decline in the quality of oil reserves, increase of invest and strict environmental protection policies. Usually, low permeability reservoir, heavy oil reservoir complex fault block and small reservoir located far from an existing facility are classified into marginal oilfield. More and more marginal oilfield is put on the schedule of development. In the view of economic, The internal rate of marginal oilfield return is lower than the benchmark rate of return of the industry, but higher than the cost discount rate of the industry. An integrated work flow is presented to improve the tap the potential and mitigate the risk of marginal oilfield involved in dependent development of small oilfields, unit exploitation of small oilfield group, simple platform, extended reach well and phased development. The LD oil field is taken as an example to state the strategy of marginal oilfield.
- Geology > Petroleum Play Type > Unconventional Play > Heavy Oil Play (0.87)
- Geology > Sedimentary Geology (0.70)
- Europe > United Kingdom > North Sea > Northern North Sea > North Viking Graben > Block 2/5 > Heather Field > Brent Group Formation (0.99)
- Europe > United Kingdom > North Sea > Northern North Sea > North Viking Graben > Block 2/5 > Broom Field (0.99)