丹凤场气田致密砂岩气水渗流特征及影响因素

doi:10.13809/j.cnki.cn32-1825/te.2022.02.011

Abstract

Abstract:

In order to understand the influence of displacement pressure on the gas flow capacity for different types of reservoirs and clarify the reasonable production pressures of different types of reservoirs, the tight sandstones of the main reservoir type Ⅱ and Ⅲ in the Xujiahe Formation of Danfengchang Gas Field are taken as the research object. And with the help of the NMR technology, the gas-flooding experiments of the tight rock samples of the two types of reservoirs under different displacement pressures are carried out to analyze the effect of displacement pressure on the gas flow capacity. The results show that the the pore structure and the displacement pressure difference have different effects on the gas flow characteristics of the rock samples in type Ⅱ and type Ⅲ reservoir. The gas flow characteristics of the rock samples in type Ⅱ reservoir are mainly affected by the displacement pressure difference. The greater the displacement pressure difference, the stronger the gas flow ability. And it mainly affects the flow ability in the small pore throat. While the pore structure and displacement pressure difference of type Ⅲ reservoir rock samples affect the gas flow characteristics together. When the capillary pressures of the layers are close to each other, the gas flow capacity is the best. Therefore, for tight sandstones in different types of reservoirs in Danfengchang Gas Field, the best production pressure should be used to achieve the best gas flow capacity during production.

Key words: gas-water two-phase flow, NMR（nuclear magnetic resonance）, microscopic pore structure, tight gas reservoir, Xujiahe Formation

CLC Number:

TE311

Yubin YANG,Wenlian XIAO,Jian HAN, et al. Gas-water flow characteristics and influencing factors of tight sandstone in Danfengchang Gas Field[J]. Reservoir Evaluation and Development, 2022, 12(2): 356-364.

Figures/Tables 10

Table 1

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Table 2

Fig. 6

Fig. 7

Table 3

References 23

[1]	黄素, 胡雪涛. 丹凤场构造须家河组储层特征及主控因素分析[J]. 天然气勘探与开发, 2011, 34(2):11-14.
	HUANG Su, HU Xuetao. Reservoir characteristics and main controlling factors of Xujiahe Formation in Danfengchang structure[J]. Natural Gas Exploration and Development, 2011, 34(2): 11-14.
[2]	李晓平. 地下油气渗流力学[M]. 北京: 石油工业出版社, 2015.
	LI Xiaoping. Underground oil and gas seepage mechanics[M]. Beijing: Petroleum Industry Press, 2015.
[3]	全国石油天然气标准化技术委员会. 岩石中两相流体相对渗透率测定方法:GB/T 28912-2012[S]. 北京: 中国标准出版社, 2012.
	China Oil and Natural Gas Standardization Technology Committee. Test method for two phase relative permeability in rock: GB/T 28912-2012[S]. Beijing: China Standards Press, 2012.
[4]	HONARPOUR M, MAHMOOD S M. Relative-permeability measurements: An overview[J]. Journal of Petroleum Technology, 1988, 40(8): 963-966. doi: 10.2118/18565-PA
[5]	ZHOU Q L, LIU H H, BODVARSSON G S, et al. Flow and transport in unsaturated fractured rock: effects of multiscale heterogeneity of hydrogeological properties[J]. Journal of Contaminant Hydrology, 2003, 60(1): 1-30. doi: 10.1016/S0169-7722(02)00080-3
[6]	RAMSTAD T, IDOWU N, NARDI C, et al. Relative permeability calculations from two-phase flow simulations directly on digital images of porous rocks[J]. Transport in Porous Media, 2012, 94(2): 487-504. doi: 10.1007/s11242-011-9877-8
[7]	XIAO B Q, FAN J T, DING F. Prediction of relative permeability of unsaturated porous media based on fractal theory and Monte Carlo simulation[J]. Energy & Fuels, 2012, 26(11): 6971-6978. doi: 10.1021/ef3013322
[8]	高树生, 叶礼友, 熊伟, 等. 大型低渗致密含水气藏渗流机理及开发对策[J]. 石油天然气学报, 2013, 35(7):93-99.
	GAO Shushen, YE Liyou, XIONG Wei, et al. The seepage mechanism and development countermeasures of large-scale low-permeability tight water-bearing gas reservoirs[J]. Journal of Oil and Gas Technology, 2013, 35(7): 93-99.
[9]	何更生, 唐海. 油层物理[M]. 北京: 石油工业出版社, 2011.
	HE Gengsheng, TANG Hai. Reservoir physics[M]. Beijing: Petroleum Industry Press, 2011.
[10]	AHMADI M A. Connectionist approach estimates gas-oil relative permeability in petroleum reservoirs: Application to reservoir simulation[J]. Fuel, 2015, 140(1): 429-439. doi: 10.1016/j.fuel.2014.09.058
[11]	DACY J M. Core tests for relative permeability of unconventional gas reservoirs[C]// Paper SPE-135427-MS presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, September, 2010.
[12]	TOTH J, BODI T, SZUCS P, et al. Convenient formulae for determination of relative permeability from unsteady-state fluid displacements in core plugs[J]. Journal of Petroleum Science and Engineering, 2002, 36(1): 33-44. doi: 10.1016/S0920-4105(02)00249-8
[13]	HAMOUDA A A, KAROUSSI O, CHUKWUDEME E A. Relative permeability as a function of temperature, initial water saturation and flooding fluid compositions for modified oil-wet chalk[J]. Journal of Petroleum Science and Engineering, 2008, 63(1): 61-72. doi: 10.1016/j.petrol.2008.10.002
[14]	SHEN P, ZHU B, LI X B, et al. An experimental study of the influence of interfacial tension on water-oil two-phase relative permeability[J]. Transport in Porous Media, 2010, 85(2): 505-520. doi: 10.1007/s11242-010-9575-y
[15]	董鑫旭, 冯强汉, 王冰, 等. 苏里格西部致密砂岩储层不同孔隙类型下的气水渗流规律[J]. 油气地质与采收率, 2019, 26(6):36-45.
	DONG Xinxu, FENG Qianghan, WANG Bing, et al. Gas-water percolation law of tight sandstone reservoirs with different pore types in western Sulige[J]. Petroleum Geology and Recovery Efficiency, 2019, 26(6): 36-45.
[16]	王文举. 致密砂岩气藏气水两相渗流特征实验研究[D]. 北京:中国石油大学(北京), 2017.
	WANG Wenju. Experimental study on characteristics of gas-water two-phase flow in tight sand gas reservoir[D]. Beijing: China University of Petroleum(Beijing), 2017.
[17]	李海波, 郭和坤, 杨正明, 等. 鄂尔多斯盆地陕北地区三叠系长7致密油赋存空间[J]. 石油勘探与开发, 2015, 42(3):396-400.
	LI Haibo, GUO Hekun, YANG Zhengming, et al. The occurrence space of Triassic Chang 7 tight oil in the northern part of Ordos Basin[J]. Petroleum Exploration and Development, 2015, 42(3): 396-400.
[18]	CHEN M, LI M, ZHAO J Z, et al. Irreducible water distribution from nuclear magnetic resonance and constant-rate mercury injection methods in tight oil reservoirs[J]. International Journal of Oil, Gas and Coal Technology, 2018, 17(4): 443-457. doi: 10.1504/IJOGCT.2018.090972
[19]	倪坚强. 苏里格低渗致密砂岩气藏气水两相渗流机理实验研究[D]. 北京:中国地质大学(北京), 2016.
	NI Jianqiang. Experimental study on gas-water two-phase seepage mechanism of Sulige low-permeability tight sandstone gas reservoir[D]. Beijing: China University of Geosciences(Beijing), 2016.
[20]	CIVAN F, DONALDSON E C. Relative permeability from unsteady-state displacements with capillary pressure included[J]. SPE Formation Evaluation, 1989, 4(2): 189-193. doi: 10.2118/16200-PA
[21]	莫邵元, 何顺利, 雷刚, 等. 致密气藏气水相对渗透率理论及实验分析[J]. 天然气地球科学, 2015, 26(11):2149-2154.
	MO Shaoyuan, HE Shunli, LEI Gang, et al. Theoretical and experimental analysis of gas-water relative permeability in tight gas[J]. Natural Gas Geoscience, 2015, 26(11): 2149-2154.
[22]	张瑞. 致密气砂岩气水相渗特征研究[D]. 西安:西北大学, 2014.
	ZHANG Rui. Research on gas-water permeability characteristics of tight gas sandstone[D]. Xi’an: Northwest University, 2014.
[23]	HUANG H X, SUN W, JI W M, et al. Effects of pore-throat structure on gas permeability in the tight sandstone reservoirs of the upper triassic Yanchang formation in the western Ordos Basin, China[J]. Journal of Petroleum Science and Engineering, 2018, 162: 602-616. doi: 10.1016/j.petrol.2017.10.076

岩样编号	岩样长度（cm）	岩样直径（cm）	渗透率（10^-3μm²）	孔隙度（%）	储层类型	参考驱替压差（MPa）	实验驱替压差（MPa）
DQ001-1-12	5.84	2.55	0.795	9.30	Ⅱ	1.30	0.70
DQ001-1-13	5.50	2.48	0.784	9.72		1.34	1.30
DQ001-1-14	5.76	2.46	0.759	8.89		1.30	2.00
DQ001-1-22	5.62	2.53	0.254	8.82	Ⅲ	2.24	1.20
DQ001-1-26	5.78	2.55	0.261	8.73		2.20	2.20
DQ001-1-27	5.68	2.53	0.259	8.71		2.20	3.10

储层类型	岩样编号	驱替压差Δp	残余水下气相相对渗透率	残余水饱和度（%）	等渗点处相对渗透率	等渗点饱和度（%）
Ⅱ类储层	DQ001-1-12	小于p_c	0.40	48.84	0.013	71.02
	DQ001-1-13	趋向于p_c	0.65	34.21	0.013	69.00
	DQ001-1-14	大于p_c	0.99	30.34	0.014	66.07
Ⅲ类储层	DQ001-1-22	小于p_c	0.13	67.35	0.008	85.00
	DQ001-1-26	趋向于p_c	0.48	40.31	0.009	70.11
	DQ001-1-27	大于p_c	0.16	47.45	0.003	74.00

储层类型	岩样编号	最小可动流体横向弛豫时间
储层类型	岩样编号	下限（ms）	上限（ms）
Ⅱ类储层	DQ001-1-12	0.28	102.00
	DQ001-1-13	0.17	105.00
	DQ001-1-14	0.10	101.00
Ⅲ类储层	DQ001-1-22	0.16	98.00
	DQ001-1-26	0.10	46.42
	DQ001-1-27	0.07	56.94

Gas-water flow characteristics and influencing factors of tight sandstone in Danfengchang Gas Field

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 23

Related Articles 8

Metrics

Comments

Recommended 0

[1]	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.
[2]	ZOU Yi,LIU Chengchuan,DENG Meizhou,NIU Na,HAN Zhiying. “Four-properties” relationship and application in the fifth member of Xujiahe Formation in Ziyang-Dongfengchang Block of central Sichuan [J]. Petroleum Reservoir Evaluation and Development, 2024, 14(3): 484-491.
[3]	ZHANG Zhuang, ZHANG Shunli, HE Xiubin, XIE Dan, LIU Yanhua. Development characteristics of fractures in the second member of Xujiahe Formation in Hexingchang Gas Field, western Sichuan Depression and their main control factors of formation: A case study of Hexingchang Gas Field [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(5): 581-590.
[4]	ZHENG Gongying, LYU Qibiao, YANG Yongjian, XU Shoucheng. Prestack seismic prediction of sandstone reservoirs in the fifth member of Xujiahe Formation in Dongfengchang area of Ziyang [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(5): 569-580.
[5]	YAN Lini, ZHU Hongquan, YE Sujuan, ZHU Li. Origin of “cake-like” fractures and its significance for gas exploration in the second member of Xujiahe Formation of Xinchang structural belt [J]. Petroleum Reservoir Evaluation and Development, 2023, 13(5): 559-568.
[6]	SUN Cangjun,HUANG Lei,WU Haojun,JIANG Yong,WANG Di. Acid sensitivity evaluation of ultra-low permeability reservoir in structure-B of Bohai Bay [J]. Petroleum Reservoir Evaluation and Development, 2021, 11(5): 703-708.
[7]	Wang Anlong. Comprehensive evaluation of dense sandstone gas layer in southern Yanchuan area based on conventional logging data [J]. Reservoir Evaluation and Development, 2019, 9(2): 75-79.
[8]	Li Hu,Fan Cunhui,Qin Qirong,Zhang Wei,Wu Quanhe. Fracture characteristics and its genesis of tight reservoir in Xujiahe formation of central Yuanba area in Sichuan basin [J]. Reservoir Evaluation and Development, 2018, 8(2): 1-6.