注入水水质对SN-1井区油藏采收率影响研究

doi:10.13809/j.cnki.cn32-1825/te.2020.06.016

Abstract

Abstract:

In order to solve the problems in Wellblock-SN-1 in Junggar Basin such as high water cut in oil wells, poor water injection effect in some wells, and decline in permeability of oil and water wells after water injection with wastewater and other issues, the influencing factors of water flooding recovery of reservoir have been studied. By the water injection optimization numerical simulations and experiments such as damage by the injection water to core, core flooding and injection water quality indicator analysis, the formation damage by injection water have been studied from microscopic scale, core scale and macroscopic scale respectively, and the damage mechanism leading to the decrease of permeability in production and injection wells has been revealed. It is recognized that the formation damage caused by solid blockage in injection water is the main controlling factor leading to low oil recovery. It is found that the solid blockage not only affects the microscopic flooding effect, but also increases the mobility ratio and reduces the sweep efficiency. Therefore, the water quality of the re-injection of the reservoir in Wellblock-SN-1 is the main factor for the poor water injection efficiency. The suspended solid mass concentration should be treated as the primary water quality control index. The proposed multi-scale evaluation method improves the reliability of the results, and is helpful for improving the exploitation effect of oilfield water flooding. It can provide technical reserves for stable oilfield exploitation.

Key words: Junggar Basin, formation damage, core experiment, water quality, multi-scale evaluation, oil recovery

CLC Number:

TE341

YANG Zhaozhong,LI Yang,RAO Zheng,HE Fan,LI Xiaogang,MA Xueli. Impact of injected water quality on oil recovery ratio of reservoir in Wellblock-SN-1[J].Reservoir Evaluation and Development, 2020, 10(6): 103-109.

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References 22

[1]	任小军, 于兴河, 李胜利, 等. 坳陷湖盆缓坡重力流成因储集层沉积特征及发育条件--以准噶尔盆地腹部SN-1井区为例[J]. 新疆石油地质, 2008,29(3):303-305.
	REN X J, YU X H, LI S L, et al. Sedimentary characteristics and developing conditions of gravity flow-genetic reservoirs in ramp margins of depression-lacustrine basin-an example from wellblock Shinan-31 in hinterland of Junggar basin[J]. Xinjiang Petroleum Geology, 2008,29(3):303-305.
[2]	唐勇, 周文泉, 赵克斌, 等. 准噶尔盆地SN-1井区含油气层位归属与划分[J]. 新疆石油地质, 2007,28(1):119-121.
	TANG Y, ZHOU W Q, ZHAO K B, et al. Geological era adscription and petroliferous formation classification of Shinan-31 wellblock in Junggar Basin[J]. Xinjiang Petroleum Geology, 2007,28(1):119-121.
[3]	杨帆, 侯连华, 卫延召, 等. 准噶尔盆地腹部石南21油藏、SN-1油藏新认识[J]. 中国矿业大学学报, 2015,44(4):696-703.
	YANG F, HOU L H, WEI Y Z, et al. New perspective on Shinan 21 and Shinan 31 reserviors in the cental Junggar Basin[J]. Journal of China University of Mining and Technology, 2015,44(4):696-703.
[4]	徐同台. 保护油气层技术[M]. 北京: 石油工业出版社, 2003: 46-48.
	XU T T. The technology of hydrocarbon reservoir protection[M]. Beijing: Petroleum Industry Press, 2003: 46-48.
[5]	何更生, 唐海. 油层物理[M]. 北京: 石油工业出版社, 2011: 96-103.
	HE G S, TANG H. Reservoir physics[M]. Beijing: Petroleum Industry Press, 2011: 96-103.
[6]	裘亦楠. 油气储层评价技术[M]. 北京: 石油工业出版社, 1994: 76.
	QIU Y N. Oil and gas reservoir evaluation technology[M]. Beijing: Petroleum Industry Press, 1994: 76.
[7]	翟云芳. 渗流力学[M]. 北京: 石油工业出版社, 2009: 25-31.
	ZHAI Y F. Seepage mechanic[M]. Beijing: Petroleum Industry Press, 2009: 25-31.
[8]	赵军龙. 测井资料处理与解释[M]. 北京: 石油工业出版社, 2012: 21-26.
	ZHAO J L. Logging data processing and interpretation[M]. Beijing: Petroleum Industry Press, 2012: 21-26.
[9]	李克向. 保护油气层钻井完井技术[M]. 北京: 石油大学出版社, 1993: 41-47.
	LI K X. Formation protection drilling and completion technology[M]. Beijing: Petroleum Industry Press, 1993: 41-47.
[10]	伦纳德·卡尔法亚. 酸化增产技术[M]. 北京: 石油工业出版社, 2004: 71-93.
	KALFALLA L. Production enhancement with acid simulation[M]. Beijing: Petroleum Industry Press, 2004: 71-93.
[11]	ALVAREZ A C, HIME G, MARCHESIN D, et al. The inverse problem of determining the filtration function and permeability reduction in flow of water with particles in porous media[J]. Transport in Porous Media, 2007,70(1):43-62. doi: 10.1007/s11242-006-9082-3
[12]	MOHAN K K, FOGLER H S. Colloidally induced smectitic fines migration: Existence of microquakes[J]. AIChE Journal, 1997,43(3):565-576. doi: 10.1002/(ISSN)1547-5905
[13]	PEDARLA A, PUPPALA A J, HOYOS L R, et al. Evaluation of swell behavior of expansive clays from internal specific surface and pore size distribution[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2016,142(2):41-58.
[14]	MUECKE T W. Formation fines and factors controlling their movement in porous media[J]. Journal of Petroleum Technology, 1979,31(2):144-150.
[15]	AMAERULE J O, KERSEY D G, NORMAN D K, et al. Advances in formation damage assessment and control strategies[C]// paper PETSOC-88-39-65 presented at the Annual Technical Meeting, 12-16 June, 1988, Calgary, Alberta, Canada.
[16]	KHALIL C N, ROCHA N O, ROCHA N O. Detection of formation damage associated to paraffin in reservoirs of the Recôncavo Baiano[C]// paper SPE-37238-MS presented at the International Symposium on Oilfield Chemistry, 18-21 February, 1997, Houston, Texas, USA.
[17]	李欢, 王小琳, 任志鹏, 等. 注入水水质对姬塬长8油藏储层伤害的影响研究[J]. 科学技术与工程, 2012,12(24):6003-6007.
	LI H, WANG X L, REN Z P, et al. The impact of injected water quality on reservoir damage of Chang8 mumber in Jiyuan[J]. Science Technology and Engineering, 2012,12(24):6003-6007.
[18]	刘清云, 黄卫红, 刘磊, 等. 克拉玛依油田注水储层伤害与水质问题分析[J]. 地质科技情报, 2017,36(4):210-214.
	LIU Q Y, HUANG W H, LIU L, et al. Resevior damage and quality index of injected water in Karamay Oilfield[J]. Geological Science and Technology Information, 2017,36(4):210-214.
[19]	ABRAMS A. Mud design to minimize rock impairment due to particle invasion[J]. Journal of petroleum technology, 1977,29(5):586-592.
[20]	VAN OORT E, VAN VELZEN J F G, LEERLOOIJER K. Impairment by suspended solids invasion: testing and prediction[J]. SPE Production and Facilities, 1993,8(3):178-184.
[21]	BANSAL K M, CAUDLE D D. A new approach for injection water quality[C]// paper SPE-24803-MS presented at the SPE Annual Technical Conference and Exhibition, 4-7 October, 1992, Washington, D.C., USA.
[22]	黄勇, 于冠宇. 高效处理油田作业废水技术的研究及应用[J]. 石油与天然气化工, 2020,49(3):135-138.
	HUANG Y, YU G Y. Study and application on high effective treatment technology of operation wastewater in oilfiled[J]. Chemical Engineering of Oil & Gas, 2020,49(3):135-138.

检测项目	控制指标	取样地点水样检测结果
检测项目	控制指标	SNXX井口水	石西集中处理站
注入水矿化度/（mg·L^-1）	≥10 000或等于注入层的地层水矿化度	18 449.1	22 961.1
悬浮固体含量/（mg·L^-1）	≤4.0	9.76	4.87
悬浮物固体直径/μm	≤5.0	8.036	0.190
含油量/（mg·L^-1）	≤10.0	0	0
平均腐蚀率/（mm·a^-1）	≤0.076	0.033	0.016
硫酸盐还原菌/（个·mL^-1）	≤25	250	60
铁细菌/（个·mL^-1）	≤n×10³（1<n<10）	2.5×10⁵	2.5×10³
腐生菌/（个·mL^-1）	≤n×10³（1<n<10）	2.5×10⁵	2.5×10³

水质	残余油饱和度/%	原始含油饱和度/%	驱油效率	水驱采收率/%
清水	18.20	60.66	0.70	51.91
井口水	24.29	61.46	0.60	49.09

水质	残余油饱和度	原始含油饱和度	驱油效率	水驱采收率
清水	19.72	62.52	68.46	53.31
井口水	20.56	61.18	66.40	51.14

层段	采收率历史值/%	采收率拟合值/%	传递因子（T）
砂岩层	33.1	33.3	0.6
砾岩层	29.7	29.6	0.1

层段	水质类型	传递因子（T）
砂岩层	清水	0.80
砂岩层	井口水	0.40
砾岩层	清水	0.30
砾岩层	井口水	0.08

Impact of injected water quality on oil recovery ratio of reservoir in Wellblock-SN-1

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