A new method to calculate sweep efficiency of horizontal wells in heterogeneous reservoir
Tóm tắt
This paper discusses the development challenges of an offshore fluvial oil reservoir with horizontal wells. In highly productive sandstone reservoirs, horizontal wells suffer from uneven flow profile and subsequent premature coning effects because of sand heterogeneity and heel to toe effect. Moreover, excessively increasing the production rate or horizontal well length can increase the risk of limited sweep efficiency, resulting in remaining oil in the toe or poor sand with low permeability. First, we analyze the characters of fluvial oil reservoir focusing on sand architecture and heterogeneity. Second, the sweep efficiency was calculated by the production data. Finally, we optimize inflow control device (ICD) for several wells and compare the response of ICD wells with conventional screen completion wells.
Tài liệu tham khảo
Al Marzouqi ARA, Helmy H, Keshka AA-S et al (2010) Wellbore segmentation using inflow control devices: design and optimization process. In: Abu Dhabi international petroleum exhibition and conference. Abu Dhabi, UAE
Araque-Martinez AN, Lake LW (1994) Sweep efficiency estimates for reservoirs with nonuniform layers. In: Society of petroleum engineers, SPE-26973-MS
Chen SM, Olynyk J (1985) Sweep efficiency improvement using horizontal wells or tilted horizontal wells. In: Miscible floods. Petroleum Society of Canada, pp 36–62
Dashash AA, Al-Arnaout I, Al-Driweesh SM, Sarakbi SA, Al Shaharani K (2008) Horizontal water shut-off for better production optimization and reservoir sweep efficiency (case Study). In: Society of petroleum engineers, SPE-117066-MS
Mozaffari S, Tchoukov P, Atias J, Czarnecki J, Nazemifard N (2015) Effect of asphaltene aggregation on rheological properties of diluted athabasca bitumen. Energy Fuels 29:5595–5599
Mozaffari S, Tchoukov P, Mozaffaric A, Atias J, Czarnecki J, Nazemifard N (2017) Capillary driven flow in nanochannels—application to heavy oil rheology studies. Colloids Surf A Physicochem Eng Asp 513:178–187
Onur Balan H, Gupta A, Georgi DT, Alkhatib A, Marsala A (2016) Deep reading technology integrated with inflow control devices to improve sweep efficiency in horizontal waterfloods. In: Society of petroleum engineers, SPE-183566-MS
Raffn AG, Zeybek M, Moen T, Lauritzen JE, Sunbul AH, Hembling DE, Majdpour A (2008) Case histories of improved horizontal well cleanup and sweep efficiency with nozzle based inflow control devices (ICD) in sandstone and carbonate reservoirs. In: Offshore technology conference, OTC-19172-MS
Shi H, Zhou H, Hu Y, He Y, Fu R, Ren B (2016) A new method to design and optimize the ICD for horizontal wells. In: Offshore Technology Conference, OTC 26905-MS