Lithologic Reservoirs ›› 2021, Vol. 33 ›› Issue (4): 147-155.doi: 10.12108/yxyqc.20210416

• OIL AND GAS FIELD DEVELOPMENT • Previous Articles     Next Articles

Reserve producing law of combined well pattern and technology strategy of horizontal well infilling: A case study from HD oilfield in Bohai Sea

CAI Hui1, QU Dan2, CHEN Minfeng2   

  1. 1. CNOOC China Limited, Tianjin Branch, Tianjin 300459, China;
    2. College of Petroleum Engineering, China University of Petroleum(Beijing), Beijing 102249, China
  • Received:2020-09-30 Revised:2020-11-18 Online:2021-08-01 Published:2021-08-06

PDF (PC)

259

Abstract: Offshore waterflooding heavy oil fields have large injection-production well spacing and low reserve producing. In order to improve the effect of oilfield development,the basic well pattern needs to be adjusted. Based on the actual HD oil field conditions and typical well pattern adjustment methods in Bohai Sea,the classic theory of seepage mechanics was used to establish a seepage model based on integrally infilled horizontal wells with inverse nine-point basic well pattern for injection-production well pattern adjustment,and the reserve producing law under different conditions was analyzed by calculating the seepage field changes of injection-production unit. The established reserve producing effect evaluation method of injection-production well pattern was used to optimize the length of the infilled horizontal wells that meets the requirements of oilfield development. The results show that the optimal length of infilled horizontal wells is 0.75 times of the original well pattern spacing by combining the actual situation of the oilfield with the reserve producing evaluation method of combined well pattern. The research result can be used as a technical reference for injection-production well pattern adjustment in Bohai Sea and similar reservoirs.

Key words: seepage model, reserve producing law, infilled horizontal wells, well pattern adjustment, adjustment strategy, offshore oilfield

CLC Number: 

  • TE53
[1] 赵春森.水平井与直井整体开发渗流理论研究.大庆:大庆石油学院, 2001. ZHAO C S. Theoretical study on seepage flow in horizontal and vertical wells. Daqing:Daqing Petroleum Institute, 2001.
[2] 叶双江, 姜汉桥, 李俊键, 等.混合井网条件下加密井产能计算模型及应用.计算物理, 2011, 28(5):693-697. YE S J, JIANG H Q, LI J J, et al. Model and application of infill well productivity calculation under mixed well pattern. Computational Physics, 2011, 28(5):693-697.
[3] 付莹. 基于流管法平-直联合开发井网水平井开发规律研究. 大庆:东北石油大学, 2016. FU Y. Research on the development law of horizontal wells based on the flow-pipe method flat-straight joint development well pattern. Daqing:Northeast Petroleum University, 2016.
[4] 郎兆新, 张丽华, 程林松, 等.水平井与直井联合开采问题:五点法面积井网.石油大学学报(自然科学版), 1993(6):50-55. LANG Z X, ZHANG L H, CHENG L S, et al. Joint mining problem between horizontal well and vertical well:5-point area well network. Journal of the University of Petroleum(Natural Science Edition), 1993(6):50-55.
[5] 葛家理, 王德民, 曲德斌.水平井与直井联合面积布井的开发理论研究(二):七点法面积井网.石油勘探与开发, 1995(2):47-50. GE J L, WANG D M, QU D B. Theoretical study on the development of combined wells with horizontal and vertical wells (2):Seven-point method area well pattern. Petroleum Exploration and Development, 1995(2):47-50.
[6] 陈民锋, 王兆琪, 张琪琛, 等.启动压力影响下注采井间有效驱替规律.深圳大学学报(理工版), 2017, 34(1):91-97. CHEN M F, WANG Z Q, ZHANG Q C, et al. Law of effective displacement between injection and production wells under the influence of starting pressure. Journal of Shenzhen University (Science and Technology Edition), 2017, 34(1):91-97.
[7] COLLINS D A, NGHIEM L X, AGARWAL R K, et al. Field-scale simulation of horizontal wells with hybrid grids. SPE 21218, 1991.
[8] CHODZICKI J D. Horizontal well infill development of the Manor Spearfish Field. Journal of Canadian Petroleum Technology, 2005, 44(11):51-55.
[9] 刘月田.水平井整体井网渗流解析解.石油勘探与开发, 2001(3):57-59. LIU Y T. Analytical solution of seepage flow in horizontal wells. Petroleum Exploration and Development, 2001(3):57-59.
[10] 罗万静.混合井网渗流理论及优化布井.北京:中国地质大学(北京), 2009. LUO W J. Theory of mixed well pattern seepage and optimization of well layout. Beijing:China University of Geosciences(Beijing), 2009.
[11] 叶双江, 陈志海, 姜汉桥, 等.水平井与直井混合注采井网的流场计算:以五点法注采井网为例.计算物理, 2017, 34(4):437-444. YE S J, CHEN Z H, JIANG H Q, et al. Flow field calculation of the mixed injection-production well pattern of horizontal and vertical wells:Taking the five-point injection-production well pattern as an example. Computational Physics, 2017, 34(4):437-444.
[12] 刘月田.水平井整体井网渗流解析解.石油勘探与开发, 2001(3):57-59. LIU Y T. Analytical solution of seepage flow in horizontal well pattern. Petroleum Exploration and Development, 2001(3):57-59.
[13] 李传亮, 朱苏阳, 柴改建, 等.直井与水平井的产能对比.岩性油气藏, 2018, 30(3):12-16. LI C L, ZHU S Y, CHAI G J, et al. Comparison of production capacity between vertical and horizontal wells. Lithologic Reservoirs, 2018, 30(3):12-16.
[14] 陈民锋, 赵晶, 张贤松, 等.低渗透稠油油藏水平井极限动用范围.中国石油大学学报(自然科学版), 2014, 38(2):103-108. CHEN M F, ZHAO J, ZHANG X S, et al. The limit production range of horizontal wells in low-permeability heavy oil reservoirs. Journal of China University of Petroleum(Edition of Natural Science), 2014, 38(2):103-108.
[15] 范子菲, 方宏长, 俞国凡.水平井水平段最优长度设计方法研究.石油学报, 1997(1):57-64. FAN Z F, FANG H C, YU G F. Study on the optimal length design method of horizontal well horizontal section. Acta Petrolei Sinica, 1997(1):57-64.
[16] 凌宗发, 胡永乐, 李保柱, 等.水平井注采井网优化.石油勘探与开发, 2007(1):65-72. LING Z F, HU Y L, LI B Z, et al. Optimization of horizontal well injection and production wells. Petroleum Exploration and Development, 2007(1):65-72.
[17] 刘明明, 王全, 马收, 等.基于混合粒子群算法的煤层气井位优化方法.岩性油气藏, 2020, 32(6):164-171. LIU M M, WANG Q, MA S, et al. A method of coalbed methane well location optimization based on hybrid particle swarm optimization. Lithologic Reservoirs, 2020, 32(6):164-171.
[18] 陈元千, 邹存友.考虑各向异性和偏心距影响的水平井产量公式推导、对比与应用.新疆石油地质, 2009, 30(4):486-489. CHEN Y Q, ZOU C Y. Derivation,comparison and application of horizontal well production formula considering the effects of anisotropy and eccentricity. Xinjiang Petroleum Geology, 2009, 30(4):486-489.
[19] 周洪亮, 尹洪军, 李美芳, 等.各向异性油藏水平井井网渗流场分析.特种油气藏, 2010, 17(1):81-84. ZHOU H L, YIN H J, LI M F, et al. Analysis of seepage field of horizontal well pattern in anisotropic reservoir. Special Oil and Gas Reservoirs, 2010, 17(1):81-84.
[20] 陈民锋, 盖建, 王敏, 等.普通稠油油藏水驱开发有效注采井距的确定.中国海上油气, 2014, 26(4):50-53. CHEN M F, GAI J, WANG M, et al. Determination of effective injection-production well spacing for water drive development of ordinary heavy oil reservoirs. China Offshore Oil & Gas, 2014, 26(4):50-53.
[21] 陈民锋, 尹承哲, 王振鹏, 等.直井-水平井组合井网平面井间动用规律.深圳大学学报(理工版), 2018, 35(4):368-376. CHEN M F, YIN C Z, WANG Z P, et al. Vertical well-horizontal well combination well pattern horizontal inter-well production law. Journal of Shenzhen University(Science and Technology Edition), 2018, 35(4):368-376.
[1] ZHENG Yufei, LI Xiang, XU Jingliang, ZHENG Weijie, YU Meng. Influence of vertical heterogeneity of reservoirs on in-situ CO2 profile control and flooding effects [J]. Lithologic Reservoirs, 2020, 32(2): 122-128.
[2] ZHOU Yanbin, HE Yifan, ZHANG Wei, ZHANG Jilei, YANG Lei. Economic limit water cut of single well in offshore waterflooding oilfield [J]. Lithologic Reservoirs, 2019, 31(3): 130-134.
[3] DONG Fengling，ZHOU Huadong，LI Zhixuan，CHEN Yingying，BI Yushuai，WANG Lei. Study on the potential tapping and adjusting of ultra-low permeability reservoir in Wei 42 block [J]. Lithologic Reservoirs, 2013, 25(5): 113-116.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] PANG Xiongqi,CHEN Dongxia, ZHANG Jun. Concept and categorize of subtle reservoir and problems in its application[J]. Lithologic Reservoirs, 2007, 19(1): 1 -8 .
[2] LEI Bianjun, ZHANG Ji,WANG Caili,WANG Xiaorong, LI Shilin, LIU Bin. Control of high r esolution sequence str atigr aphy on microfacies and reservoir s: A case from the upper Ma 5 member in Tong 5 wellblock, Jingbian Gas Field[J]. Lithologic Reservoirs, 2008, 20(1): 1 -7 .
[3] YANG Jie，WEI Pingsheng， LI Xiangbo. Basic concept, content and research method of petroleum seismogeology[J]. Lithologic Reservoirs, 2010, 22(1): 1 -6 .
[4] WANG Yan-qi1，HU Min-yi1，LIU Fu-yan1，WANG Hui1，HU Zhi-hua1,2. [J]. LITHOLOGIC RESERVOIRS, 2008, 20(3): 44 -48 .
[5] DAI Liming, LI Jianping, ZHOU Xinhuai, CUI Zhongguo, CHENG Jianchun. Depositional system of the Neogene shallow water delta in Bohai Sea area[J]. Lithologic Reservoirs, 2007, 19(4): 75 -81 .
[6] DUAN Youxiang, CAO Jing, SUN Qifeng. Application of auto-adaptive dip-steering technique to fault recognition[J]. Lithologic Reservoirs, 2017, 29(4): 101 -107 .
[7] HUANG Long, TIAN Jingchun, XIAO Ling, WANG Feng. Characteristics and evaluation of Chang 6 sandstone reservoir of Upper Triassic in Fuxian area, Ordos Basin[J]. Lithologic Reservoirs, 2008, 20(1): 83 -88 .
[8] YANG Shiwei, LI Jianming. Characteristics and geological significance of seismites[J]. Lithologic Reservoirs, 2008, 20(1): 89 -94 .
[9] LI Chuanliang, TU Xingwan. Two types of stress sensitivity mechanisms for reservoir rocks:Being favorable for oil recovery[J]. Lithologic Reservoirs, 2008, 20(1): 111 -113 .
[10] LI Jun, HUANG Zhilong, LI Jia, LIU Bo. The pool-forming pattern in the condition of arching in the southeast uplift in Songliao Basin[J]. Lithologic Reservoirs, 2007, 19(1): 57 -61 .
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn