A novel method for predicting recoverable reserves of single well through depletion-drive development after fracturing in tight oil reservoirs

doi:10.7623/syxb202010008

Acta Petrolei Sinica ›› 2020, Vol. 41 ›› Issue (10): 1238-1247.DOI: 10.7623/syxb202010008

• Oil Field Development • Previous Articles Next Articles

A novel method for predicting recoverable reserves of single well through depletion-drive development after fracturing in tight oil reservoirs

Sun Ke¹, Liu Huiqing¹, Wang Teng¹, Zhang Hongling¹, Xie Jianyong²

1. Key Laboratory of Petroleum Engineering, Ministry of Education, China University of Petroleum, Beijing 102249, China;
2. Zhundong Oil Production Plant, PetroChina Xinjiang Oilfield Company, Xinjiang Fukang 831511, China

Received:2019-12-18 Revised:2020-08-03 Online:2020-10-25 Published:2020-11-05

致密油藏压裂后衰竭开采单井可采储量预测新方法

孙科¹, 刘慧卿¹, 王腾¹, 张红玲¹, 谢建勇²

1. 中国石油大学(北京)石油工程教育部重点实验室北京 102249;
2. 中国石油新疆油田公司准东采油厂新疆阜康 831511

通讯作者: 刘慧卿,男,1966年7月生,1987年获华东石油学院学士学位,1997年获石油大学(北京)博士学位,现为中国石油大学(北京)石油工程学院教授、博士生导师,主要从事油气田开发理论与系统工程、提高采收率技术方法的教学与科研工作。Email:liuhq@cup.edu.cn
作者简介:孙科,男,1995年2月生,2017年获西安石油大学学士学位,现为中国石油大学(北京)博士研究生,主要从事油气田开发理论与系统工程、致密油及稠油提高采收率理论与技术研究。Email:2019310163@student.cup.edu.cn
基金资助:
国家自然科学基金项目（No.51974331）和国家科技重大专项（2017ZX05009-004）资助。

Abstract

Abstract:

Because the geological characteristics, seepage characteristics, development characteristics and production characteristics of tight reservoirs are different from those of conventional reservoirs, it is urgent to establish the production performance analysis methods and the prediction methods of recoverable reserves applicable for the development of fractured horizontal wells in tight oil reservoirs. Based on the characteristics of depletion-drive development of tight reservoirs after fracturing and the basic theory of reservoir engineering, using material balance and dynamic analysis methods, this paper proposes a novel, simple and widely applicable prediction method for recoverable reserves of single well in tight reservoirs through depletion-drive development after fracturing. The study results show that under certain minimum water cut of single well, the recovery factor of recoverable reserves of single well is related to the change in water cut. By drawing the relationship chart, it is found that the water cut decreases rapidly in the initial stage of production. With the continuous increase of recovery factor, the decline rate of water cut gradually slows down, and the recovery factor of recoverable reserves and water cut of single well decrease with the minimum water cut decreasing. When the recovery factor of recoverable reserves is 1, the water cut of the production well drops to the minimum value. Taking 12 oil wells in a tight oil block X of Lucaogou Formation in Jimsar sag, Junggar Basin as examples, using the proposed method, this paper predicts the recoverable reserves of single well, calculates the recovery factor of recoverable reserves, and verifies the reliability and accuracy of the prediction method by comparing the theoretical chart curves and actual production data of 2 production wells of them. In addition, based on the proposed theory and method, this paper also predicts the production performance of these two case wells, and obtains the relationship curves of production performance between cumulative oil production, cumulative water production and water cut, respectively, so as to evaluate the current production state of oil wells and predict production trends.

Key words: tight oil reservoirs, fracturing, depletion-drive development, recoverable reserves, prediction method

摘要：

由于致密油藏的地质特征、渗流特征、开发特征及生产特征均有别于常规油藏，因此亟待建立适应于致密油藏压裂水平井开发的生产动态分析及可采储量预测方法。以致密油藏压裂后的衰竭生产特征为基础，根据油藏工程基本理论，应用物质平衡与动态分析方法提出了一种简便且广泛适用的致密油藏压裂后衰竭开采单井可采储量预测新方法。研究结果表明，在单井最小含水率一定的条件下，单井可采储量采出程度与含水率变化有关。通过绘制关系图版，发现投产初期含水率降低速度较快，随着可采储量采出程度的不断上升，含水率下降速度逐渐减缓，且单井可采储量采出程度及含水率均随最小含水率的减小而降低。当可采储量采出程度为1时，生产井含水率降至最小含水率。以准噶尔盆地吉木萨尔凹陷芦草沟组X区块的12口致密油井为例，应用该方法分别预测了单井可采储量，计算了可采储量采出程度，并通过对比其中2口生产井的理论图版曲线与实际生产数据，验证了该预测方法的可靠性及准确性。此外，基于提出的理论与方法，预测了2口实例井的生产动态，并分别得到了累积产油量、累积产水量与含水率之间的生产动态关系曲线，用以评估油井当前生产状态并预测生产趋势。

关键词: 致密油藏, 压裂, 衰竭开采, 可采储量, 预测方法

CLC Number:

TE155

Sun Ke, Liu Huiqing, Wang Teng, Zhang Hongling, Xie Jianyong. A novel method for predicting recoverable reserves of single well through depletion-drive development after fracturing in tight oil reservoirs[J]. Acta Petrolei Sinica, 2020, 41(10): 1238-1247.

孙科, 刘慧卿, 王腾, 张红玲, 谢建勇. 致密油藏压裂后衰竭开采单井可采储量预测新方法[J]. 石油学报, 2020, 41(10): 1238-1247.

References

[1] 孙龙德,邹才能,贾爱林,等. 中国致密油气发展特征与方向[J].石油勘探与开发,2019,46(6):1015-1026.
SUN Longde,ZOU Caineng,JIA Ailin,et al.Development characteristics and orientation of tight oil and gas in China[J].Petroleum Exploration and Development,2019,46(6):1015-1026.
[2] 吴国干,方辉,韩征,等."十二五"中国油气储量增长特点及"十三五"储量增长展望[J].石油学报,2016,37(9):1145-1151.
WU Guogan,FANG Hui,HAN Zheng,et al.Growth features of measured oil initially in place & gas initially in place during the 12th Five-Year Plan and its outlook for the 13th Five-Year Plan in China[J].Acta Petrolei Sinica,2016,37(9):1145-1151.
[3] USGS.Assessment of undiscovered oil resources in the Devonian-Mississippian Bakken formation,Williston Basin Province,Montana and North Dakota,2008[R].Fact Sheet 2008-3021,2008.
[4] DANIEL A,BRAIN B,BOBBI J C,et al.Evaluating implications of hydraulic fracturing in shale gas reservoirs[C]//SPE Americas E & P Environmental and Safety Conference.San Antonio,Texas:Society of Petroleum Engineers,2009.
[5] SOEDER D J.The successful development of gas and oil resources from shales in North America[J].Journal of Petroleum Science and Engineering,2018,163:399-420.
[6] 贾承造,郑民,张永峰.中国非常规油气资源与勘探开发前景[J].石油勘探与开发,2012,39(2):129-136.
JIA Chengzao,ZHENG Min,ZHANG Yongfeng.Unconventional hydrocarbon resources in China and the prospect of exploration and development[J].Petroleum Exploration and Development,2012,39(2):129-136.
[7] 邹才能,朱如凯,吴松涛,等.常规与非常规油气聚集类型、特征、机理及展望——以中国致密油和致密气为例[J].石油学报,2012,33(2):173-187.
ZOU Caineng,ZHU Rukai,WU Songtao,et al.Types,characteristics,genesis,and prospects of conventional and unconventional hydrocarbon accumulations:taking tight oil and tight gas in China as an instance[J].Acta Petrolei Sinica,2012,33(2):173-187.
[8] 杜金虎,杨涛,李欣.中国石油天然气股份有限公司"十二五"油气勘探发现与"十三五"展望[J].中国石油勘探,2016,21(2):1-15.
DU Jinhu,YANG Tao,LI Xin.Oil and gas exploration and discovery of PetroChina Company Limited during the 12th Five-Year Plan and the prospect during the 13th Five-Year Plan[J].China Petroleum Exploration,2016,21(2):1-15.
[9] 黄兴,李天太,王香增,等.致密砂岩储层可动流体分布特征及影响因素——以鄂尔多斯盆地姬塬油田延长组长8油层组为例[J].石油学报,2019,40(5):557-567.
HUANG Xing,LI Tiantai,WANG Xiangzeng,et al.Distribution characteristics and its influence factors of movable fluid in tight sandstone reservoir:a case study from Chang-8 oil layer of Yanchang Formation in Jiyuan oilfield,Ordos Basin[J].Acta Petrolei Sinica,2019,40(5):557-567.
[10] 樊建明,王冲,屈雪峰,等.鄂尔多斯盆地致密油水平井注水吞吐开发实践——以延长组长7油层组为例[J].石油学报,2019,40(6):706-715.
FAN Jianming,WANG Chong,QU Xuefeng,et al.Development and practice of water flooding huff-puff in tight oil horizontal well,Ordos Basin:a case study of Yanchang formation Chang 7 oil layer[J].Acta Petrolei Sinica,2019,40(6):706-715.
[11] 田孝茹,张元元,卓勤功,等.准噶尔盆地玛湖凹陷下二叠统风城组致密油充注特征——碱性矿物中的流体包裹体证据[J].石油学报,2019,40(6):646-659.
TIAN Xiaoru,ZHANG Yuanyuan,ZHUO Qingong,et al.Tight oil charging characteristics of the Lower Permian Fengcheng formation in Mahu sag,Junggar Basin:evidence from fluid inclusions in alkaline minerals[J].Acta Petrolei Sinica,2019,40(6):646-659.
[12] 冯其红,徐世乾,任国通,等.致密油多级压裂水平井井网参数分级优化[J].石油学报,2019,40(7):830-838.
FENG Qihong,XU Shiqian,REN Guotong,et al.Hierarchical optimization of well pattern parameters in multi-stage fractured horizontal well for tight oil[J].Acta Petrolei Sinica,2019,40(7):830-838.
[13] 毕海滨,段晓文,郑婧,等.致密油生产动态特征及可采储量评估方法[J].石油学报,2018,39(2):172-179.
BI Haibin,DUAN Xiaowen,ZHENG Jing,et al.Production dynamic characteristics and recoverable reserve estimation method of tight oil[J].Acta Petrolei Sinica,2018,39(2):172-179.
[14] 侯建锋,李军诗,纪淑红,等.石油可采储量计算方法:SY/T 5367-2010[S].北京:石油工业出版社,2010.
HOU Jianfeng,LI Junshi,JI Shuhong,et al.The Estimated methods oil recoverable reserves:SY/T 5367-2010[S].Beijing:Petroleum Industry Press,2010.
[15] 李传亮.油藏工程原理[M].3版.北京:石油工业出版社,2011:13-16.
LI Chuanliang.Fundamental of reservoir engineering[M].3rd ed.Beijing:Petroleum Industry Press,2011:13-16.
[16] 陈元千,李剑.中国新版《石油可采储量计算方法》标准中存在的主要问题及建议[J].油气地质与采收率,2014,21(5):8-13.
CHEN Yuanqian,LI Jian.Reviews on problems and recommendations for new edition standard of the estimated methods of oil recoverable reserves in China[J].Petroleum Geology and Recovery Efficiency,2014,21(5):8-13.
[17] 陈元千.油田可采储量计算方法[J].新疆石油地质,2000,21(2):130-137.
CHEN Yuanqian.Calculation methods of recoverable reserves of oilfields[J].Xinjiang Petroleum Geology,2000,21(2):130-137.
[18] 陈元千,李剑,李云波,等.利用典型曲线拟合的递减常数预测油气藏的可采储量[J].中国海上油气,2015,27(5):49-54.
CHEN Yuanqian,LI Jian,LI Yunbo,et al.Using decline constants from matching type curve to predict recoverable reserves of oil and gas reservoirs[J].China Offshore Oil and Gas,2015,27(5):49-54.
[19] 周建堂,王军,张维,等.一种计算单井可采储量的新方法[J].石油化工应用,2019,38(4):68-71.
ZHOU Jiantang,WANG Jun,ZHANG Wei,et al.A new method for calculating single well recoverable reserves[J].Petrochemical Industry Application,2019,38(4):68-71.
[20] 杜金虎,刘合,马德胜,等.试论中国陆相致密油有效开发技术[J].石油勘探与开发,2014,41(2):198-205.
DU Jinhu,LIU He,MA Desheng,et al.Discussion on effective development techniques for continental tight oil in China[J].Petroleum Exploration and Development,2014,41(2):198-205.
[21] 吴奇,胥云,张守良,等.非常规油气藏体积改造技术核心理论与优化设计关键[J].石油学报,2014,35(4):706-714.
WU Qi,XU Yun,ZHANG Shouliang,et al.The core theories and key optimization designs of volume stimulation technology for unconventional reservoirs[J].Acta Petrolei Sinica,2014,35(4):706-714.
[22] 赵政璋,杜金虎.致密油气[M].北京:石油工业出版社,2012:1-3.
ZHAO Renzhang,DU Jinhu.Tight oil and gas[M].Beijing:Petroleum Industry Press,2012:1-3.
[23] 任龙.致密油藏体积压裂水平井缝网扩展及流固全耦合产能预测[D].青岛:中国石油大学(华东),2016.
REN Long.Fracture network propagation and productivity prediction based on fluid-solid fully coupling of SRV-fractured horizontal wells in tight oil reservoirs[D].Qingdao:China University of Petroleum,2016.
[24] 张君峰,毕海滨,许浩,等.国外致密油勘探开发新进展及借鉴意义[J].石油学报,2015,36(2):127-137.
ZHANG Junfeng,BI Haibin,XU Hao,et al.New progress and reference significance of overseas tight oil exploration and development[J].Acta Petrolei Sinica,2015,36(2):127-137.
[25] 刘慧卿,李俊键,姜汉桥.油藏工程原理与方法[M].青岛:中国石油大学出版社,2019:223-225.
LIU Huiqing,LI Junjian,JIANG Hanqiao.Principles and methods of reservoir engineering[M].Qingdao:China University of Petroleum Press,2019:223-225.
[26] 周楚艺.致密砂岩油藏水平井可采储量估算方法[J].大庆石油地质与开发,2018,37(4):161-165.
ZHOU Chuyi.Estimating method of the recoverable reserve for the horizontal well in tight sandstone oil reservoirs[J].Petroleum Geology & Oilfield Development in Daqing, 2018,37(4):161-165.
[27] VALKO P P.Assigning value to stimulation in the Barnett shale:A simultaneous analysis of 7000 plus production hystories and well completion records[R].SPE 119369,2009.
[28] DUONG A N.Rate-Decline Analysis for fracture-dominated shale reservoirs[J]. SPE Reservoir Evaluation & Engineering,2010,14(3):377-387.
[29] YU Shaoyong,LEE W J,MIOCEVIC D J,et al.Estimating proved reserves in tight/shale wells using the modified SEPD method[R].SPE 166198,2013.
[30] 林旺.致密油藏压裂水平井压力产量动态模型与方法研究[D].北京:中国地质大学(北京),2019.
LIN Wang.Study on pressure-production dynamic model and method of tight oil reservoirs with fractured horizontal well[D].Beijing:China University of Geosciences (Beijing),2019.
[31] 张君峰,毕海滨,许浩,等.致密储层油气产量与储量预测方法的适用性[J].大庆石油地质与开发,2016,35(3):151-158.
ZHANG Junfeng,BI Haibin,XU Hao,et al.Applicability of the predicting method for the oil and gas production and their reserves in the tight reservoirs[J].Petroleum Geology & Oilfield Development in Daqing,2016,35(3):151-158.
[32] YU Shaoyong,JIAN Zhixiang,LEE W J.Reconciling empirical methods for reliable EUR and production profile forecasts of horizontal wells in tight/shale reservoirs[R].SPE 189802,2018.
[33] LI Haitao,LUO Hongwen.Rate-transient analysis in multifractured horizontal wells of tight oil reservoir[J].SPE Production & Operation,2008,33(4):718-738.
[34] EKER I,KURTOGLU B,KAZEMI H.Multiphase rate transient analysis in unconventional reservoirs:theory and applications[R].SPE 171657,2014.
[35] YUAN B,ZHANG Z,HAMDI H,et al.Improved rate-transient analysis for heterogeneous fractured liquid-rich tight reservoirs with non-static properties[R].URTEC 2901799,2018.
[36] CLARKSON C R.Production data analysis of unconventional gas wells:review of theory and best practices[J].International Journal of Coal Geology,2013,109-110:101-146.
[37] 魏漪,冉启全,李冉,等.基于分区补给物质平衡法预测致密油压裂水平井动态储量[J].石油勘探与开发,2016,43(3):448-455.
WEI Yi,RAN Qiquan,LI Ran,et al.Determination of dynamic reserves of fractured horizontal wells in tight oil reservoirs by multi-region material balance method[J].Petroleum Exploration and Development,2016,43(3):448-455.
[38] SPIVEY J P.Estimating layer properties for wells in multilayer low-permeability gas reservoirs by automatic history matching production and production log data[R].SPE 100509,2006.
[39] BELLO R O,WATTENBARGER R A.Rate transient analysis in naturally fractured shale gas reservoirs[R].SPE 114591,2008.
[40] Nobakht M,Clarkson C R,Kaviani D.New and improved methods for performing Rate-Transient analysis of shale gas reservoirs[R].SPE 147869,2011.
[41] LUO Hongtao,MAHIYA G,PANNETT S,et al.The use of rate transient analysis modeling to quantify uncertainties in commingled tight gas production forecasting and Decline Analysis parameters in the Alberta deep basin[R].SPE 147529,2014.
[42] 欧阳伟平.致密气藏分段压裂水平井的不稳定压力与产量综合分析方法[J].油气井测试,2018,27(1):14-21.
OUYANG Weiping.Comprehensive analysis method for transient pressure and production of multistage fractured horizontal well in tight gas reservoirs[J].Well Testing,2018,27(1):14-21.
[43] 李晓辉.致密油注水吞吐采油技术在吐哈油田的探索[J].特种油气藏,2015,22(4):144-146.
LI Xiaohui.Application of cyclic water injection for tight oil production in the Tuha oilfield[J].Special Oil & Gas Reservoirs,2015,22(4):144-146.
[44] 吴忠宝,曾倩,李锦,等.体积改造油藏注水吞吐有效补充地层能量开发的新方式[J].油气地质与采收率,2017,24(5):78-83.
WU Zhongbao,ZENG Qian,LI Jin,et al.New effective energy-supplement development method of waterflood huff and puff for the oil reservoir with stimulated reservoir volume fracturing[J].Petroleum Geology and Recovery Efficiency,2017,24(5):78-83.
[45] 杨胜来,魏俊之.油层物理学[M].北京:石油工业出版社,2004:261-262.
YANG Shenglai,WEI Junzhi.Physical Properties of Petroleum Reservoir[M].Beijing:Petroleum Industry Press,2004:261-262.

A novel method for predicting recoverable reserves of single well through depletion-drive development after fracturing in tight oil reservoirs

致密油藏压裂后衰竭开采单井可采储量预测新方法

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Wu Xiaoguang, Long Tengda, Huang Zhongwei, Gao Wenlong, Li Gensheng, Xie Zixiao, Yang Rui, Lu Jingsong, Ma Jinliang. Characteristics of fracture propagation in radial wellbores of shale oil reservoirs with multiple lithologic layers [J]. Acta Petrolei Sinica, 2024, 45(3): 559-573,585.
[2]	Wang Fengjiao, Xu He, Liu Yikun, Du Qinglong, Zhang Dong. The mechanism of hydraulic fracturing-assisted oil displacement technique applied to enhance oil recovery by high-pressure reduced adsorption [J]. Acta Petrolei Sinica, 2024, 45(2): 403-411.
[3]	Liu Yongge, Li Guo, Jia Wei, Bai Yajie, Hou Jian, Clarke M A, Xu Hongzhi, Zhao Ermeng, Ji Yunkai, Chen Litao, Guo Tiankui, He Jiayuan, Zhang Le. Influence law of reservoir stimulation on depressurization exploitation of class Ⅰ natural gas hydrate reservoir [J]. Acta Petrolei Sinica, 2024, 45(2): 412-426,460.
[4]	Cui Chuanzhi, Sun Lianting, Shan Gaojun, Yang Yong, Wu Yizhi. Multi-measure simultaneous optimization method for multi-layer commingled producing wells [J]. Acta Petrolei Sinica, 2023, 44(8): 1356-1364,1381.
[5]	Wang Fei, Zhou Tong, Xu Jiaxin, Guan Jingjing, Suo Jielin, Zhang Shicheng, Liao Kai, Zou Yushi. Fracturing pump-stopping pressure drop model considering proppant migration [J]. Acta Petrolei Sinica, 2023, 44(4): 647-656.
[6]	Zhang Lei, Bian Liheng, Hou Wei, Li Yongzhou, Li Yongchen, Wu Peng, Li Weijing, Li Xiang, Li Chunhu. Pore structure characteristics and exploration significance of deep coal reservoirs: a case study of Daning-Jixian block in the eastern margin of Ordos Basin [J]. Acta Petrolei Sinica, 2023, 44(11): 1867-1878.
[7]	Su Xianbo, Wang Qian, Yu Shiyao, Zhao Weizhong, Wang Xiaoming, Bi Caiqin, Chen Ming, Wang Yibing, Sun Changyan, Fu Haijiao, Zou Chenglong, Zhang Shuangbin, Huang Jin, Xie Xiangjun. Integrated development technology path for deep coal measure gas based on low-negative carbon emission reduction [J]. Acta Petrolei Sinica, 2023, 44(11): 1931-1948.
[8]	Yun Jian, Zhang Hua, Ma Xinyuan, Hong Ning, Xu Jie, Liu Yi, Chen Xi, Wang Zhansheng, He Liujing. Optimization and application of treatment technology for guanidine gum fracturing flowback fluid in deep coalbed methane wells [J]. Acta Petrolei Sinica, 2023, 44(11): 1959-1973.
[9]	Liu Zhishui, Wang Kangning, Bao Qianzong, Li Zhixu. Prediction method of rock physics S-wave velocity in tight sandstone reservoir: a case study of Yanchang Formation in Ordos Basin [J]. Acta Petrolei Sinica, 2022, 43(9): 1284-1294.
[10]	Wei Shiming, Jin Yan, Kao Jiawei, Xia Yang, Lin Botao. Reservoir stress evolution and fracture optimization of infill wells during the drilling-fracturing-production process [J]. Acta Petrolei Sinica, 2022, 43(9): 1305-1314,1324.
[11]	Hou Bing, Dai Yifan, Fan Meng, Zhang Kunpeng, Wick Thomas, Lee Sanghyun. Numerical simulation of pores connection by acid fracturing based on phase field method [J]. Acta Petrolei Sinica, 2022, 43(6): 849-859.
[12]	Sun Jianmeng, Su Hesong, Guo Ning, Wang Deqiang, Zeng Xin, Yuan Weiguo, Feng Minggang, Yan Wei, Zhou Xianbin. Determination method of biogenic silicon and its application in the fracturing ability evaluation of shale gas reservoir [J]. Acta Petrolei Sinica, 2022, 43(4): 548-557.
[13]	Liu Weibin, Xu Xingyou, Liu Chang, Chen Shan, Bai Jing, Li Yaohua. The stimulation mechanism and performance analysis of supercritical CO₂ and hydraulic sand-carrying composite volume fracturing technology on continental shale reservoirs [J]. Acta Petrolei Sinica, 2022, 43(3): 399-409.
[14]	Guo Jianchun, Ma Li, Lu Cong. Progress and development directions of fracturing flooding technology for tight reservoirs in China [J]. Acta Petrolei Sinica, 2022, 43(12): 1788-1797.
[15]	Liu Jun, Du Zhigang, Guo Xiaoqiang, Yin Teng, Yu Hai, Cao Dayong. Prediction model and law of buckling wear of open hole staged featuring completion string in horizontal well [J]. Acta Petrolei Sinica, 2022, 43(11): 1632-1641.