Simulation and scheme optimization of using superheated steam for circulating preheating in SAGD

被引：0

作者：

Lin R. ^{[1
]}

Guo B. ^{[1
]}

Li X. ^{[2
]}

Yang Y. ^{[3
]}

Han F. ^{[1
]}

Wang X. ^{[1
]}

Zhang J. ^{[1
]}

机构：

[1] College of New Energy in China University of Petroleum(East China), Qingdao

[2] Liaohe Thermal Mining Machinery Manufacturing Branch of CNPC Bohai Petroleum Equipment Manufacturing Company Limited, Panjin

[3] New Energy Development Center of Shengli Petroleum Administration Company Limited, SINOPEC, Dongying

来源：

Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2021年 / 45卷 / 03期

关键词：

Circulating preheating; Numerical simulation; SAGD; Scheme optimization; Superheated steam;

D O I：

10.3969/j.issn.1673-5005.2021.03.014

中图分类号：

学科分类号：

摘要：

The preheating effect is an important factor to affect the development of SAGD. The study on circulating preheating technology is carried out on H71 block of Guantao. The target working condition is that the steam dryness is bigger or equal to 0 and the steam returns to the vicinity of the production wellhead (point A). In this study we established the reservoir geological model combined with reservoir fluid model and physical parameters, and then we used CMG to compare the schemes of circulating preheating between the same gas injection rate and the same enthalpy on the basis of history matching. The results show that, the historical fitting rate in block H71 of Guantao formation was 97.8%, which sets the same steam injection volume in the injection well and liquid production rate in the production well. After 9 months of cyclic preheating, the effective thermal connection had been basically formed between two horizontal wells of Guan H71-1 and H71-2 in block Du 84, where the temperature had been between 80 ℃ to 100 ℃ and the formation pressure had dropped to 3 MPa around, it reached the good chance for SAGD. Comparing the two schemes, it was more economic that the steam injection rate was 80 m3/d and degree of superheat was 61 ℃ (pressure 6.7 MPa), where the average temperature reaching 90 ℃ was quicker between superheated steam wells. In the SAGD production stage, compared with the injection of wet steam, the daily oil production and cumulative oil production are significantly increased by injecting the superheated steam, and the water content is reduced, which has a more significant effect in the early stage of SAGD production. © 2021, Editorial Office of Journal of China University of Petroleum(Edition of Natural Science). All right reserved.

引用

页码：118 / 126

页数：8

共 22 条

[1] LIANG G, LIU S, LIU Y, Et al., The potential evaluation of superheated steam with high degree assisted gravity drainage process in oil sands project, (2017)
[2] ZHAO L, JIANG H, SUN F, Et al., Effect of steam state on the productivity of a horizontal well pair during the steam-assisted-gravity-drainage process: physical aspect analysis, (2018)
[3] YANG Liqiang, LIN Riyi, Study on superheated steam injection technology in steam-assisted gravity drainage [J], Petroleum Geology and Recovery Efficiency, 14, 5, pp. 62-65, (2007)
[4] ZHANG J, HAN F, YANG Z, Et al., Significance of aquathermolysis reaction on heavy oil recovery during steam-assisted gravity drainage (SAGD) process [J], Energy & Fuels, 34, 5, pp. 5426-5435, (2020)
[5] SUN F, YAO Y, LI X, Et al., The flow and heat transfer characteristics of superheated steam in concentric dual-tubing wells [J], International Journal of Heat & Mass Transfer, 115, pp. 1099-1108, (2017)
[6] LI Chuntao, QIAN Genbao, WU Shuhong, Et al., Characteristics of superheated steam and application in the huff and puff development of heavy oil reservoirs: a case study of the supersalt heavy oil reservoir in Kenkiyak oilfield, Kazakhstan [J], Xinjiang Petroleum Geology, 29, 4, pp. 495-497, (2008)
[7] YANG Jianping, WANG Shizhong, LIN Riyi, Et al., Simulation and scheme optimization of superheated steam assisted gravity drainage huff and puff preheating, Journal of China University of Petroleum (Edition of Natural Science), 44, 3, pp. 105-113, (2020)
[8] HUO Jin, SANG Linxiang, LIU Ming, Et al., Optimization of injection and production parameters in the start-up stage of steam-assisted gravity drainage in Fengcheng Oilfield [J], Xinjiang Petroleum Geology, 36, 2, pp. 191-194, (2015)
[9] GUINDON L., Heating strategies for steam-assisted-gravity-drainage startup phase [J], Journal of Canadian Petroleum Technology, 54, 2, pp. 081-084, (2015)
[10] VANEGAS PRADA J W, CUNHA L B, ALHANATIl F J S., Impact of operational parameters and reservoir variables during the start-up phase of a SAGD process, (2005)

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