新场J2s2致密砂岩气藏水平井采收率主控因素研究

doi:10.13809/j.cnki.cn32-1825/te.2021.06.014

Abstract

Abstract:

The gas reservoir in 2^nd member of Shaximiao Formation of Xinchang Gas Field is tight, and its natural productivity is low. As one of the effective development methods, the horizontal wells has unclear main controlling factors of recovery factor. By the numerical simulation software, ECLIPSE, this problem has been analyzed and its influence has been quantitatively evaluated, so as to provide a favorable theoretical basis for the further development by horizontal wells. The results show that: 1）The main controlling factors of tight sandstone gas reservoir changes with the different reserves. For the class Ⅰ, Ⅲ and Ⅳ, it is mainly controlled by the water saturation, while for the class Ⅱ, effective thickness contributes most. 2）The influence of main controlling factors on the recovery factor of horizontal wells are different, with a degree of 91.14 %, 54.33 %, 61.82 % and 45.18 % respectively for class Ⅰ~Ⅳ and multiple factors instead of single factor. 3）The physical properties of reservoir have great influence on the recovery factor of horizontal wells. For the class Ⅰ and Ⅱ reservoir with good properties, the influence degree is less than 1 %, while that of the class Ⅲ and Ⅳ reservoir with poor properties is up to 17 %. Therefore, effective development of horizontal wells depend on the classification of reservoir by different reserves. For the areas with good properties, the optimization of engineering design should be strengthened, like increasing the length of horizontal section and fine fracturing; on the contrary, for that of poor properties, the deployment location of horizontal wells should be chosen in the areas with low water saturation, large effective reservoir thickness and high permeability.

Key words: tight sandstone gas reservoir, horizontal well, recovery factor, water saturation, effective thickness

CLC Number:

TE377

Lu LIU,Yongfei WANG,Zedong ZHAN, et al. Main control factors of horizontal wells in J₂s₂ tight sandstone gas reservoir of Xinchang Gas Field[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(6): 890-896.

Figures/Tables 11

Table 1

Table 2

Fig. 1

Fig. 2

Table 3

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Table 4

Table 5

References 18

[1]	刘正中, 吴铬, 黎华继, 等. 新场气田上沙溪庙组气藏储层表征及建模[J]. 天然气工业, 2002, 22(3):52-55.
	LIU Zhengzhong, WU Luo, LI Huaji, et al. Characterizing and modelling of Upper Shaximiao Formation Gas Reservoirs in Xinchang Field[J]. Natural Gas Industry, 2002, 22(3):52-55.
[2]	杨克明, 朱宏权. 川西叠覆型致密砂岩气区地质特征[J]. 石油实验地质, 2013, 35(1):1-8.
	YANG Keming, ZHU Hongquan. Geological characteristics of superposed tight sandstone gas-bearing areas in western Sichuan[J]. Petroleum Experimental Geology, 2013, 35(1):1-8.
[3]	青淳, 唐红君, 卜淘. 川西坳陷新场气田浅层气藏开发技术难点及对策[J]. 天然气工业, 2002, 22(3):55-58.
	QING Chun, TANG Hongjun, BU Tao. Technical difficulties in developing the shallow gas reservoirs in Xinchang field in west Sichuan depression and their countermeasures[J]. Natural Gas Industry, 2002, 22(3):55-58.
[4]	王勇飞, 刘成川, 刘露. 川西坳陷致密砂岩气藏差异性开发实践与认识—以新场气藏J₂s₂为例[J]. 天然气工业, 2019, 39(S1):174-178.
	WANG Yongfei, LIU Chengchuan, LIU Lu. Practice and Understanding of differential development of tight sandstone gas reservoirs in the Western Sichuan Depression—A Case study of Xinchang J₂s₂[J]. Natural Gas Industry, 2019, 39(S1):174-178.
[5]	杨建, 刘露, 卜淘. 川西低渗致密气藏水平井开发动态差异性分析[J]. 石油地质与工程, 2018, 32(5):79-81.
	YANG Jian, LIU Lu, BU Tao. Dynamic difference analysis of horizontal well development in low permeability and tight gas reservoirs in western Sichuan[J]. Petroleum Geology and Engineering, 2018, 32(5):79-81.
[6]	王国勇. 致密砂岩气藏水平井整体开发实践与认识:以苏里格气田苏53区块为例[J]. 石油天然气学报, 2012, 34(5):153-157.
	WANG Guoyong. Practice and recognition of horizontal well development in tight sandstone gas reservoirs——A case study from Block Su53[J]. Journal of Oil and Gas Technology, 2012, 34(5):153-157.
[7]	陈军, 张烈辉, 冯国庆, 等. 低渗透气藏Ⅲ类储层对产能的贡献研究[J]. 天然气工业, 2004, 24(10):108-110.
	CHEN Jun, ZHANG Liehui, FENG Guoqing, et al. Contribution of third class reservoirs to productivity of low permeable gas pools[J]. Natural Gas Industry, 2004, 24(10):108-110.
[8]	刘露, 刘成川, 卜淘, 等. 含水饱和度对川西致密气藏水平井开发效果和经济效益的影响[J]. 油田化学, 2019, 36(1):120-124.
	LIU Lu, LIU Chengchuan, BU Tao, et al. Effect of water saturation on development and economic limit of horizontal well in tight sandstone gas reservoir of Western Sichuan[J]. Oilfield Chemistry, 2019, 36(1):120-124.
[9]	高树生, 刘华勋, 叶礼友, 等. 致密砂岩气藏井网密度优化与采收率评价新方法[J]. 天然气工业, 2019, 39(8):58-64.
	GAO Shusheng, LIU Huaxun, YE Liyou, et al. A new method for well pattern density optimization and recovery factor evaluation of tight sandstone gas reservoirs[J]. Natural Gas Industry, 2019, 39(8):58-64.
[10]	陈冠旭, 程顺有, 刘森, 等. 低渗透气藏水平井开发产能影响因素分析[J]. 地下水, 2012, 34(3):163-165.
	CHEN Guanxu, CHENG Shunyou, LIU Sen, et al. Analysis of factors influencing productivity of horizontal well development in low permeability gas reservoirs[J]. Groundwater, 2012, 34(3):163-165.
[11]	ZHANG H, ZHONG Y, KURU E, et al. Impacts of permeability stress sensitivity and aqueous phase trapping on the tight sandstone gas well productivity——A case study of the Daniudi gas field[J]. Journal of Petroleum Science and Engineering, 2019, 177:261-269. doi: 10.1016/j.petrol.2019.02.044
[12]	赵振峰, 吴晓东, 黄伟, 等. 特低渗透油藏压裂水平井产能影响因素分析[J]. 石油钻采工艺, 2011, 4(33):81-83.
	ZHAO Zhenfeng, WU Xiaodong, HUANG Wei, et al. Influencing factor analysis of the productivity of fractured horizontal wells in ultra-low permeability reservoir[J]. Oil drilling & production technology, 2011, 4(33):81-83.
[13]	MIN W, SHENG N C, MENG L L. Enhancing recovery and sensitivity studies in an unconventional tight gas condensate reservoir[J]. Petroleum Science, 2018, 15(2):305-318. doi: 10.1007/s12182-018-0220-7
[14]	吴则鑫. 苏里格气田致密气井产能主控因素分析[J]. 非常规油气, 2018, 5(5):66-71.
	WU Zexin. Analysis of production capacity control factors of low-permeability tight gas reservoir[J]. Unconventional Oil and Gas, 2018, 5(5):66-71.
[15]	SHU S G, HUA X L, LI Y Y. A new method for well pattern density optimization and recovery efficiency evaluation of tight sandstone gas reservoirs[J]. Natural Gas Industry B, 2020, 7(2):133-140. doi: 10.1016/j.ngib.2019.08.003
[16]	李华昌. 川西致密气藏压裂水平井生产动态预测研究[J]. 钻采工艺, 2015, 38(3):63-65.
	LI Huachang. Production performance prediction of fractured horizontal well in Chuanxi tight gas reservoir[J]. Drilling & Production Technology, 2015, 38(3):63-65.
[17]	魏修平, 胡向阳, 李浩, 等. 致密砂岩气藏水平井测井评价——以鄂尔多斯盆地大牛地气田X井区为例[J]. 石油与天然气地质, 2019, 40(5):1084-1092.
	WEI Xiuping, HU Xiangyang, LI Hao, et al. An evaluation on logging data of horizontal wells in tight sand gas reservoir A case study of drilling sector X in Daniudi gas field, Ordos Basin[J]. Petroleum and Natural Gas Geology, 2019, 40(5):1084-1092.
[18]	张箭, 李华昌, 刘成川. 新场气田低渗致密沙二气藏数值模拟研究[J]. 天然气工业, 2002, 22(3):58-61.
	ZHANG Jian, LI Huachang, LIU Chengchuan. Numerical simulation research on the low permeability tight J₂s₂ gas reservoir in Xinchang Field[J]. Natural Gas Industry, 2002, 22(3):58-61.

储层类别	地层系数（10^-3μm²·m）	储能系数（m）	含水饱和度（%）	渗透率（10^-3μm²）
Ⅰ类为主	> 2.5	> 1.2	< 45	> 0.25
Ⅱ类为主	1.5~2.5	0.6~1.2	45~50	0.15~0.25
Ⅲ类为主	1~1.5	0.4~0.6	50~65	0.1~0.15
Ⅳ类为主	< 1	< 0.4	> 65	< 0.1

储量区	孔隙度（%）	渗透率（10^-3μm²）	含水饱和度（%）	有效厚度（m）	地层系数（10^-3μm²·m）	储能系数（m）
Ⅰ	13	0.3	35	25.2	7.56	2.13
Ⅱ	11	0.18	50	16.4	2.46	0.90
Ⅲ	9	0.12	57	10.5	1.26	0.41
Ⅳ	8	0.06	68	8.4	0.50	0.22

储量区	孔隙度（%）		含水饱和度（%）		有效厚度（m）		渗透率（10^-3 μm²）
储量区	倍数	储能系数（m）	倍数	储能系数（m）	倍数	储能系数（m）	倍数	范围（10^-3 μm²）
Ⅰ	0.8、1、1.2、1.4	1.67~2.97	0.85、0.95、1.1	1.80~2.33	0.6、0.85、1.1	1.27~2.33	0.85、1.2、1.5	0.26~0.45
Ⅱ	0.75、0.9、1.2	0.68~1.08	0.9、1、1.1	0.81~0.99	0.8、1.1、1.3	0.72~.170	0.83、1、1.38	0.15~0.25
Ⅲ	0.98、1.15、1.45	0.40~0.60	0.98、1.05、1.14	0.40~0.47	0.98、1.2、1.45	0.40~0.60	0.83、1、1.25	0.10~0.15
Ⅳ	0.87、1.2、1.5、1.87	0.19~0.41	0.95、1、1.05	0.21~0.23	0.5、0.9、1.3、1.7	0.11~0.37	0.5、0.9、1.3、1.6	0.03~0.10

储量区	含水饱和度（%）		有效厚度（m）		渗透率（10^-3 μm²）		孔隙度（%）
储量区	范围（%）	变化幅度（%）	范围（%）	变化幅度（%）	范围（%）	变化幅度（%）	范围（%）	变化幅度（%）
Ⅰ	61.52~61.68	0.16	61.59~61.6	0.01	61.58~61.59	0.01	61.59~61.6	0.004
Ⅱ	50.7~51.12	0.42	50.55~51.34	0.79	50.7~51.12	0.42	50.86~50.9	0.04
Ⅲ	31.32~48.2	16.88	37.66~44.1	6.44	38.51~41.95	3.43	40.22~40.65	0.43
Ⅳ	6.03~18.69	12.66	8.63~16.38	7.75	8.23~15.68	7.40	12.23~12.75	0.52

参数	Ⅰ、Ⅱ类储量区		Ⅲ、Ⅳ类储量区
参数	关系式	相关系数	关系式	相关系数
含水饱和度	y = 0.180 4x^-0.953	R² = 0.036 1	y =0.026 6x^-4.561	R² = 0.316 5
孔隙度	y = 3 023.1x^-1.925	R² = 0.021 5	y = 60.401x^-0.323	R² = 0.001 9
渗透率	y = 20.489e^3.862^x	R² = 0.089 2	y = 86.945x + 20.996	R² = 0.065 7
有效厚度	y = 9.204e^{0.064 6}^x	R² = 0.217 3	y = 7.053 5e^{0.111 3}^x	R² = 0.292 6
水平段长度	y = 5.158e^{0.002 5}^x	R² = 0.577 5	y = 20.845e^{0.000 4}^x	R² = 0.020 3
压裂段数	y = 8.304 4e^{0.185 7}^x	R² = 0.373 3	y = 29.875e^-0.007^x	R² = 0.002

Main control factors of horizontal wells in J₂s₂ tight sandstone gas reservoir of Xinchang Gas Field

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 11

References 18

Related Articles 15

Metrics

Comments

Recommended 0

[1]	ZHANG Yi, NING Chongru, CHEN Yazhou, JI Yulong, ZHAO Liyang, WANG Aifang, HUANG Jingjing, YU Kaiyi. Huff-n-puff technology and parameter optimization of large displacement water injection in tight oil reservoir [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(5): 727-733.
[2]	LIU Wei, CAO Xiaopeng, HU Huifang, CHENG Ziyan, BU Yahui. Production influencing factors analysis and fracturing parameters optimization of shale oil horizontal wells [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(5): 764-770.
[3]	YAN Huanrong,ZHAN Zedong,LI Yajing,BI Youyi,DENG Meizhou,FENG Ying. High yield enrichment law for tight sandstone gas reservoir: A case study of the second member of Xujiahe Formation gas reservoir in Xinchang-Hexinchang gas field of western Sichuan Depression [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(4): 541-548.
[4]	YANG Zhaozhong, YUAN Jianfeng, ZHANG Jingqiang, LI Xiaogang, ZHU Jingyi, HE Jiangang. Research progress and understanding of fracturing fractures in horizontal wells of marine shale in Sichuan Basin [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(4): 600-609.
[5]	LI Xuebin,JIN Lixin,CHEN Chaofeng,YU Tianxi,XIANG Yingjie,YI Duo. Key technologies of horizontal well fracturing for deep coal-rock gas: A case study of Jurassic in Baijiahai area, Junggar Basin [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(4): 629-637.
[6]	ZHAO Haifeng, WANG Tengfei, LI Zhongbai, LIANG Wei, ZHANG Tao. Study on dynamic stress field for fracturing in horizontal well group of shale oil [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(3): 352-363.
[7]	ZHAO Di, MA Sen, CAO Yanhui. Seismic rock physics analysis and prediction model establishment of Shaximiao Formation in Zhongjiang Gas Field [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(5): 608-613.
[8]	LUO Hongwen, ZHANG Qin, LI Haitao, XIANG Yuxing, LI Ying, PANG Wei, LIU Chang, YU Hao, WANG Yaning. Influence law of temperature profile for horizontal wells in tight oil reservoirs [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(5): 676-685.
[9]	ZHANG Fengxi, NIU Congcong, ZHANG Yichi. Evaluation of multi-stage fracturing a horizontal well of low permeability reservoirs in East China Sea [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(5): 695-702.
[10]	HU Zhijian, LI Shuxin, WANG Jianjun, ZHOU Hong, ZHAO Yulong, ZHANG Liehui. Productivity evaluation of multi-stage fracturing horizontal wells in shale gas reservoir with complex artificial fracture occurrence [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(4): 459-466.
[11]	CHEN Meng,XIE Weifeng,ZHANG Yu,YANG Guofeng,LIU Xiangjun. Methods and application for water holdup calculation and flowing image based on array electromagnetic wave instrument in horizontal water-oil wells [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(4): 505-512.
[12]	QIU Xiaoxue,ZHONG Guanghai,LI Xiansheng,CHEN Meng,LING Weitong. CFD simulation of flow characteristics of shale gas horizontal wells with different inclination [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(3): 340-347.
[13]	YAO Hongsheng,YUN Lu,ZAN Ling,ZHANG Longsheng,QIU Weisheng. Development mode and practice of fault-block oriented shale oil well in the second member of Funing Formation, Qintong Sag, Subei Basin [J]. Reservoir Evaluation and Development, 2023, 13(2): 141-151.
[14]	ZHANG Jinhong. Progress in Sinopec shale oil engineering technology [J]. Reservoir Evaluation and Development, 2023, 13(1): 1-8.
[15]	WANG Xiaoqiang,ZHAO Li’an,WANG Zhiyuan,XIU Chunhong,JIA Guolong,DONG Yan,LU Detang. Data analysis method of pump shutdown pressure based on water hammer effect and cepstrum transformation [J]. Reservoir Evaluation and Development, 2023, 13(1): 108-116.

Main control factors of horizontal wells in J2s2 tight sandstone gas reservoir of Xinchang Gas Field

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 11

References 18

Related Articles 15

Metrics

Comments

Recommended 0

Main control factors of horizontal wells in J₂s₂ tight sandstone gas reservoir of Xinchang Gas Field