海陆过渡相页岩储层合层开采数值模拟研究

doi:10.13809/j.cnki.cn32-1825/te.2024.03.008

油气藏评价与开发 ›› 2024, Vol. 14 ›› Issue (3): 382-390.doi: 10.13809/j.cnki.cn32-1825/te.2024.03.008

海陆过渡相页岩储层合层开采数值模拟研究

陈学忠¹(),赵慧言¹,陈满¹,徐华卿²,杨建英¹,杨晓敏¹,唐慧莹³()

1.四川长宁天然气开发有限责任公司，四川成都 610051
2.中国石油西南油气田分公司成都天然气化工总厂，四川成都 610213
3.西南石油大学油气藏地质及开发工程全国重点实验室，四川成都 610500

收稿日期:2023-08-29 出版日期:2024-06-26 发布日期:2024-07-10
通讯作者: 唐慧莹（1990—），女，博士，副教授，主要从事非常规储层压裂及一体化数值模拟研究。地址：四川省成都市新都区新都大道8号西南石油大学，邮政编码：610500。E-mail: tanghuiying@swpu.edu.cn
作者简介:陈学忠（1968—），男，硕士，高级工程师，主要从事油气田开发管理工作。地址：四川省成都市成华区猛追湾横街99号，邮政编码：610051。E-mail: cxzhong@petrochina.com.cn
基金资助:
国家自然科学基金面上项目“井-射孔-缝协同密切割压裂三维非平面缝网竞争扩展机制研究”(52374043)

Numerical simulation of multi-layer co-production in marine-continental transitional shale reservoirs

CHEN Xuezhong¹(),ZHAO Huiyan¹,CHEN Man¹,XU Huaqing²,YANG Jianying¹,YANG Xiaomin¹,TANG Huiying³()

1. Sichuan Changning Natural Gas Development Co. Ltd., Chengdu, Sichuan 610051, China
2. Chengdu Natural Gas Chemical Plant of PetroChina Southwest Oil and Gas Field Company, Chengdu, Sichuan 610213, China
3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2023-08-29 Online:2024-06-26 Published:2024-07-10

摘要/Abstract

摘要：

由于沉积环境的不同，海陆过渡相页岩与海相页岩存在较大差异。基于鄂尔多斯盆地东缘海陆过渡相页岩储层的特点，建立了纵向多岩性叠置储层水平井产能数值模型，分析了不同岩性组合模式下的气井单段生产动态特征，研究了煤层渗透率、储层叠置关系等关键参数以及生产制度对生产特征的影响。研究结果表明：①富煤型页岩储层合层开采初期气水同产，采出气主要来自砂岩和页岩储层的游离气，采出水主要来自压裂液及煤层水。煤层的渗透率越高，合层开采的累计产气量越大，累计产水量也随之提升。②含煤叠置组合类型进行合层开采最理想的空间叠置顺序为页—砂—煤，在该叠置顺序下，煤层产水对合层开采干扰最小。③煤层产气量受应力敏感的影响最大。

关键词: 海陆过渡相, 页岩, 合层开采, 数值模拟, 叠置关系

Abstract:

Distinct sedimentary environments lead to notable disparities between marine-continental transitional shale and purely marine shale. This study develops a numerical model to evaluate the productivity of horizontal wells in vertically multi-lithologic superimposed reservoirs, focusing on the marine-continental transitional shale reservoirs at the eastern margin of the Ordos Basin. The model analyses the dynamic characteristics of single-stage gas well production under various lithologic combination modes. It particularly investigates key parameters such as coal seam permeability, the superposition relationships of reservoirs, and the impact of the production system on output characteristics. The findings indicate that: ① In the early stages of combined extraction from coal-rich shale reservoirs, both gas and water are produced simultaneously. The gas primarily originates from the free gas in the sandstone and shale reservoirs, while the water is predominantly sourced from fracturing fluid and coal seam water. Notably, higher coal seam permeability correlates with increased cumulative gas and water production. ② The optimal spatial stacking sequence for combined layer mining in coal-bearing superimposed reservoirs is identified as page-sand-coal. This sequence minimizes the interference of coal seam water production on the overall mining process. ③ The production from coal seams exhibits significant stress sensitivity, impacting overall gas output.

Key words: marine-continental transitional facies, shale, multi-layer co-production, numerical simulation, superimposition relation

中图分类号:

TE121.1

陈学忠, 赵慧言, 陈满, 徐华卿, 杨建英, 杨晓敏, 唐慧莹. 海陆过渡相页岩储层合层开采数值模拟研究[J]. 油气藏评价与开发, 2024, 14(3): 382-390.

CHEN Xuezhong, ZHAO Huiyan, CHEN Man, XU Huaqing, YANG Jianying, YANG Xiaomin, TANG Huiying. Numerical simulation of multi-layer co-production in marine-continental transitional shale reservoirs[J]. Petroleum Reservoir Evaluation and Development, 2024, 14(3): 382-390.

图/表 15

表1

图1

图2

图3

表2

图4

图5

图6

图7

图8

表3

表4

表5

表6

表7

参考文献 27

[1]	梁冰, 石迎爽, 孙维吉, 等. 中国煤系“三气”成藏特征及共采可能性[J]. 煤炭学报, 2016, 41(1): 167-173.
	LIANG Bing, SHI Yingshuang, SUN Weiji, et al. Reservoir forming characteristics of “the three gases” in coal measure and the possibility of commingling in China[J]. Journal of China Coal Society, 2016, 41(1): 167-173.
[2]	王蕊, 石军太, 王天驹, 等. 不同叠置关系下煤层气与致密气合采方案优化研究[J]. 中国煤炭地质, 2016, 28(6): 42-46.
	WANG Rui, SHI Juntai, WANG Tianju, et al. Study on different superimposed CBM and tight gas joint exploitation schemes optimization[J]. Coal Geology of China, 2016, 28(6): 42-46.
[3]	申建, 张春杰, 秦勇, 等. 鄂尔多斯盆地临兴地区煤系砂岩气与煤层气共采影响因素和参数门限[J]. 天然气地球科学, 2017, 28(3): 479-487.
	SHEN Jian, ZHANG Chunjie, QIN Yong, et al. Effect factors on co-mining of sandstone gas and coalbed methanein coal series and threshold of parameter in Linxing Block, Ordos Basin[J]. Natural Gas Geoscience, 2017, 28(3): 479-487.
[4]	张二超, 吴财芳, 党广兴, 等. 滇东老厂区块多煤层煤层气合采层间干扰分析[J]. 河南理工大学学报(自然科学版), 2020, 39(1): 10-17.
	ZHANG Erchao, WU Caifang, DANG Guangxing, et al. Interlayer interference analysis of the multi-layer drainage for multiple seams CBM in Laochang mining area of eastern Yunnan province[J]. Journal of Henan Polytechnic University(Natural Science), 2020, 39(1): 10-17.
[5]	张先敏, 吴浩宇, 冯其红, 等. 多层合采煤层气井动态响应特征[J]. 中国石油大学学报(自然科学版), 2020, 44(6): 88-96.
	ZHANG Xianmin, WU Haoyu, FENG Qihong, et al. Dynamic characteristics of commingled coalbed methane production in wells with multi-layer coal seams[J]. Journal of China University of Petroleum(Edition of Natural Science), 2020, 44(6): 88-96.
[6]	BI C Q, ZHANG J Q, SHAN Y S, et al. Geological characteristics and co-exploration and co-production methods of Upper Permian Longtan coal measure gas in Yangmeishu Syncline, Western Guizhou Province, China[J]. China Geology, 2020, 3(1): 38-51.
[7]	许江, 李奇贤, 彭守建, 等. 定产定压条件下叠置含气系统煤层气合采试验研究[J]. 煤炭学报, 2021, 46(8): 2510-2523.
	XU Jiang, LI Qixian, PENG Shoujian, et al. Experimental study on CBM coproduction in superposed gas-bearing systems under constant gas production rate and constant wellbore pressure[J]. Journal of China Coal Society, 2021, 46(8): 2510-2523.
[8]	徐兵祥, 白玉湖, 陈岭, 等. 致密气-煤层气合采可行性分析及优选方法[J]. 天然气技术与经济, 2021, 15(1): 38-44. doi: 10.3969/j.issn.2095-1132.2021.01.006
	XU Bingxiang, BAI Yuhu, CHEN Ling, et al. Feasibility analysis on coproduction between tight gas and CBM and optimizing method[J]. Natural Gas Technology and Economy, 2021, 15(1): 38-44. doi: 10.3969/j.issn.2095-1132.2021.01.006
[9]	邱凯旋, 李恒, 张丽霞, 等. 考虑定压生产的陆相页岩气藏多层窜流产能模型[J]. 非常规油气, 2023, 10(1): 104-110.
	QIU Kaixuan, LI Heng, ZHANG Lixia, et al. Continental shale gas reservoir interlayer crossflow production model considering constant pressure condition[J]. Unconventional Oil & Gas, 2023, 10(1): 104-110.
[10]	邱凯旋, 李恒, 郝世彦, 等. 含砂岩薄互层陆相页岩气藏生产预测模型研究[J]. 非常规油气, 2023, 10(1): 111-121.
	QIU Kaixuan, LI Heng, HAO Shiyan, et al. Study on production model prediction of continental shale gas reservoir with thin interbedded sandstone[J]. Unconventional Oil & Gas, 2023, 10(1): 111-121.
[11]	CHAI X L, TIAN L, DONG P, et al. Study on recovery factor and interlayer interference mechanism of multilayer co-production in tight gas reservoir with high heterogeneity and multi-pressure systems[J]. Journal of Petroleum Science and Engineering, 2022, 210: 109699.
[12]	侯宛宜, 张吉, 马志欣. 煤层气成藏机理概论[J]. 地下水, 2016, 38(2): 231-234.
	HOU Wanyi, ZHANG Ji, MA Zhixin. The occurrence and accumulation of the coal-bed methane[J]. Ground Water, 2016, 38(2): 231-234.
[13]	于建国, 韩昫身, 金艳. 页岩气压裂返排液生物处理技术研究进展[J]. 石油与天然气化工, 2022, 51(5): 131-138.
	YU Jianguo, HAN Xushen, JIN Yan. Biological treatment of shale gas flowback and produced water: A review[J]. Chemical Engineering of Oil & Gas, 2022, 51(5): 131-138.
[14]	张芮菡. 基于多尺度渗流理论的页岩气藏多级压裂水平井数值模拟研究[D]. 成都: 西南石油大学, 2019.
	ZHANG Ruihan. Numerical simulation of multi-stage fractured horizontal well in shale gas reservoir based on multi-scale flow theory[D]. Chengdu: Southwest Petroleum University, 2019.
[15]	MOHANTY M M, PAL B K. Sorption behavior of coal for implication in coal bed methane an overview[J]. International Journal of Mining Science and Technology, 2017, 27(2): 307-314.
[16]	GRAY I. Reservoir engineering in coal seams: Part 1 the physical process of gas storage and movement in coal seams[J]. SPE Reservoir Engineering, 1987, 2(1): 28-34.
[17]	THIMONS E D, KISSELL F N. Diffusion of methane through coal[J]. Fuel, 1973, 52(4): 274-280.
[18]	ZHU S Y, PENG X L, DU Z M, et al. Modeling of coal fine migration during CBM production in high-rank coal[J]. Transport in Porous Media, 2017, 118(3): 65-83.
[19]	SANDER R, PAN Z, CONNELL L D. Laboratory measurement of low permeability unconventional gas reservoir rocks: A review of experimental methods[J]. Journal of Natural Gas Science & Engineering, 2017, 37(3): 248-279.
[20]	由凯. 鄂尔多斯盆地中北部盒8段致密砂岩气成藏特征段[D]. 成都: 成都理工大学, 2014.
	YOU Kai. The analysis of the tight-gas-sandstone reservoir of He-8 stratum in north-central Ordos basin[D]. Chengdu: Chengdu University of Technology, 2014.
[21]	FALL A, EICHHUBL P, BODNAR R J, et al. Natural hydraulic fracturing of tight-gas sandstone reservoirs, Piceance Basin, Colorado[J]. Geological Society of America Bulletin, 2015, 127(1-2): 61-75.
[22]	STROKER T M, HARRIS N B, ELLIOTT W C, et al. Diagenesis of a tight gas sand reservoir: Upper Cretaceous Mesaverde Group, Piceance Basin, Colorado[J]. Marine & Petroleum Geology, 2013, 40: 48-68.
[23]	OLSON J E, LAUBACH S E, LANDER R H. Natural fracture characterization in tight gas sandstones: Integrating mechanics and diagenesis[J]. AAPG Bulletin, 2009, 93(11): 1535-1549.
[24]	王历历, 李宪文, 何平, 等. 致密砂岩变黏滑溜水体系的研制与应用[J]. 石油与天然气化工, 2022, 51(5): 87-91.
	WANG Lili, LI Xianwen, HE Ping, et al. Research and application of a variable viscosity slick water fracturing system in tight sandstone gas reservoirs[J]. Chemical Engineering of Oil & Gas, 2022, 51(5): 87-91.
[25]	MA X H, JIA A L, TAN J, et al. Tight sand gas development technology and practices in China[J]. Petroleum Exploration & Development, 2012, 39(5): 611-618.
[26]	曹丽娜. 致密气藏不稳定渗流理论及产量递减动态研究[D]. 成都: 西南石油大学, 2017.
	CAO Lina. Research on unsteady percolation theory and rate transient analysis in tight gas reservoirs[D]. Chengdu: Southwest Petroleum University, 2017.
[27]	袁淋. 致密砂岩气藏气水同产水平井稳态产能研究[D]. 成都: 西南石油大学, 2015.
	YUAN Lin. Study on steady-state productivity of gas-water horizontal well in tight sandstone gas reservoir[D]. Chengdu: Southwest Petroleum University, 2015.

数值模型参数	煤层	页岩层	致密砂岩层
网格尺寸/m	5×1×1	5×1×1	5×1×1
模型尺寸/m	600×180×3	600×180×9	600×180×3
储层厚度/m	3	9	3
基质孔隙度/%	6	3	4
天然裂缝孔隙度/%	1	1
基质渗透率/10^-3μm²	0.1	0.001	0.01
天然裂缝渗透率/10^-3μm²	1	0.01
兰氏体积/（m³/t）	13.98	2.35
兰氏压力/MPa	2.3	3.6
基质初始含水饱和度/%	0	0	40
天然裂缝初始含水饱和度/%	100	30
水力裂缝开度/m	0.01	0.01	0.01
水力裂缝渗透率/μm²	1	1	1
等效水力裂缝开度/m	1	1	1
等效水力裂缝渗透率/μm²	0.01	0.01	0.01
等效水力裂缝孔隙度	0.01	0.01	0.01

阶段	累计产气量/10⁴m³	占总累计产气量比例/%	累计产水量/m³	占总累计产水量比例/%
第一阶段	50.28	38.28	146.31	50.41
第二阶段	81.08	61.72	143.91	49.59

日产气量/ m³	无应力敏感下储层累计产气量/10⁴m³	应力敏感下储层累计产气量/10⁴m³	累计产气量下降值/ 10⁴m³	累计产气量下降率/ %
3 000	119.14	107.31	11.84	9.94
4 000	123.40	109.93	13.47	10.92
5 000	125.19	111.07	14.12	11.28
6 000	126.15	111.68	14.47	11.47
7 000	126.66	112.04	14.62	11.54
8 000	126.97	112.26	14.71	11.59
9 000	127.24	112.44	14.80	11.63

日产气量/ m³	无应力敏感下储层累计产气量/ 10⁴m³	应力敏感下储层累计产气量/ 10⁴m³	累计产气量下降值/ 10⁴m³	累计产气量下降率/ %
3 000	8.14	5.58	2.55	31.37
4 000	9.12	6.04	3.08	33.75
5 000	9.55	6.25	3.30	34.57
6 000	9.78	6.36	3.42	34.97
7 000	9.91	6.43	3.48	35.12
8 000	9.99	6.47	3.51	35.19
9 000	10.05	6.50	3.55	35.28

日产气量/ m³	无应力敏感下储层累计产气量/10⁴m³	应力敏感下储层累计产气量/10⁴m³	累计产气量下降值/ 10⁴m³	累计产气量下降率/ %
3 000	14.98	14.65	0.32	2.16
4 000	15.22	14.80	0.43	2.82
5 000	15.35	14.87	0.48	3.15
6 000	15.42	14.91	0.51	3.33
7 000	15.46	14.93	0.53	3.44
8 000	15.49	14.95	0.54	3.51
9 000	15.51	14.96	0.55	3.56

海陆过渡相页岩储层合层开采数值模拟研究

Numerical simulation of multi-layer co-production in marine-continental transitional shale reservoirs

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 15

参考文献 27

相关文章 15

Metrics

本文评价

推荐阅读 10

日产气量/ m³	无应力敏感下储层累计产气量/10⁴m³	应力敏感下储层累计产气量/10⁴m³	累计产气量下降值/ 10⁴m³	累计产气量下降率/ %
3 000	95.64	86.68	8.96	9.37
4 000	98.67	88.71	9.97	10.10
5 000	99.91	89.57	10.34	10.35
6 000	100.56	90.02	10.54	10.48
7 000	100.90	90.29	10.61	10.51
8 000	101.11	90.46	10.65	10.54
9 000	101.30	90.59	10.71	10.57

日产气量/ m³	无应力敏感下储层累计产水量/m³	应力敏感下储层累计产水量/ m³	累计产水量下降值/ m³	累计产水量下降率/ %
3 000	277.65	209.67	67.97	24.48
4 000	283.30	207.28	76.03	26.84
5 000	285.71	205.06	80.66	28.23
6 000	286.99	203.32	83.67	29.15
7 000	287.63	201.83	85.80	29.83
8 000	287.97	200.62	87.34	30.33
9 000	288.33	199.60	88.73	30.77

[1]	段宏亮,谌廷姗,孙敬,洪亚飞,李思辰,卢显荣,张正阳. 苏北盆地页岩油基质与裂缝流动能力实验研究 [J]. 油气藏评价与开发, 2024, 14(3): 333-342.
[2]	汤勇,陈焜,胡小虎,方思冬,刘华. 页岩凝析气受限空间相态及开发特征研究 [J]. 油气藏评价与开发, 2024, 14(3): 343-351.
[3]	王欣,韩建强,昝灵,李小龙,彭兴平. 苏北盆地溱潼凹陷阜宁组二段页岩油测井评价研究 [J]. 油气藏评价与开发, 2024, 14(3): 364-372.
[4]	孙雅雄,朱相羽,邱旭明,刘启东,段宏亮,仇永峰,巩磊. 苏北盆地高邮凹陷阜宁组二段页岩裂缝特征分析 [J]. 油气藏评价与开发, 2024, 14(3): 414-424.
[5]	臧素华,荆晓明,刘志华,印燕铃. 金坛盆地始新统阜宁组四段页岩油地质条件 [J]. 油气藏评价与开发, 2024, 14(3): 425-434.
[6]	管倩倩,蒋龙,程紫燕,张典栋,王云鹤,张帆. 东营凹陷页岩油岩相要素测井评价新方法及其应用 [J]. 油气藏评价与开发, 2024, 14(3): 435-445.
[7]	梁孝柏, 鞠玮. 基于拓扑结构分析的断层连通性评价——以川南泸州中区深层页岩气储层多级断层为例 [J]. 油气藏评价与开发, 2024, 14(3): 446-457.
[8]	高全芳,张培先,关琳琳,李彦婧,倪锋. 低级别逆断层对页岩气富集高产影响研究——以四川盆地东南缘南川地区平桥东1断层为例 [J]. 油气藏评价与开发, 2024, 14(3): 458-467.
[9]	许国晨,杜娟,祝铭辰. 苏北盆地页岩油注水吞吐增产实践与认识 [J]. 油气藏评价与开发, 2024, 14(2): 256-266.
[10]	张连锋,张伊琳,郭欢欢,李洪生,李俊杰,梁丽梅,李文静,胡书奎. 近废弃油藏延长生命周期开发调整技术 [J]. 油气藏评价与开发, 2024, 14(1): 124-132.
[11]	张志超,柏明星,杜思宇. 页岩油藏注CO₂驱孔隙动用特征研究 [J]. 油气藏评价与开发, 2024, 14(1): 42-47.
[12]	赵坤,李泽阳,刘娟丽,胡可,江冉冉,王伟祥,刘秀珍. 吉木萨尔页岩油井区CO₂前置压裂工艺参数优化及现场实践 [J]. 油气藏评价与开发, 2024, 14(1): 83-90.
[13]	崔玉东, 陆程, 关子越, 罗万静, 滕柏路, 孟凡璞, 彭越. 南海海域天然气水合物降压开采储层蠕变对气井产能影响 [J]. 油气藏评价与开发, 2023, 13(6): 809-818.
[14]	何海燕, 刘先山, 耿少阳, 孙军昌, 孙彦春, 贾倩. 基于渗流-温度双场耦合的油藏型储气库数值模拟 [J]. 油气藏评价与开发, 2023, 13(6): 819-826.
[15]	梁运培, 张怀军, 王礼春, 秦朝中, 田键, 陈强, 史博文. 连续加载应力下真实裂缝流场和渗透率演化规律数值研究 [J]. 油气藏评价与开发, 2023, 13(6): 834-843.