悬浮颗粒过滤线性解析模型研究

油气藏评价与开发 ›› 2018, Vol. 8 ›› Issue (4): 58-62.

悬浮颗粒过滤线性解析模型研究

于晓伟¹,李洪建²,吕昀泽³,唐汉林⁴

^1. 中国石化华东油气分公司,江苏南京 210000
^2. 西南石油大学石油与天然气工程学院,四川成都 610500
^3. 中国石化华北石油工程公司,河南郑州 450000
^4. 中国石化胜利油田分公司孤东采油厂,山东东营 257000

收稿日期:2017-09-14 发布日期:2018-11-28 出版日期:2018-08-26
作者简介:于晓伟（1991—）,男,助理工程师,油气藏开发。

Study on linear analytical model for suspended particle filtration

Yu Xiaowei¹,Li Hongjian²,Lyu Yunze³,Tang Hanlin⁴

1.East China Oil & Gas Company, SINOPEC, Nanjing, Jiangsu 210000, China;
^2. School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
^3. North China Petroleum Engineering Company, SINOPEC, Zhengzhou, Henan 450000, China
^4. Gudong oil production plant of Shengli Oilfield Company, SINOPEC, Dongying, Shandong 257000, China

Received:2017-09-14 Online:2018-11-28 Published:2018-08-26

摘要/Abstract

摘要：

为了研究产出水回注过程中固相颗粒与乳化油滴对吸水能力的影响,从深部过滤与外滤饼形成两个方面对悬浮颗粒过滤模型进行了研究,优化了模型参数——滤失系数λ与地层伤害系数β的求解方式。通过岩心驱替实验数据拟合求解曲线,并采用数值法求解超越方程获得模型参数,得出滤失系数 $λ$ 、地层伤害系数 $β$ 、阻抗斜率m在不同相态悬浮颗粒影响下的变化规律。通过实验数据分段拟合深部过滤与外滤饼形成阶段的阻抗,计算出岩心内的颗粒浓度在流动方向上的分布。

关键词: 深部过滤, 外滤饼形成, 滤失系数, 地层伤害系数

Abstract:

In order to study the influence of suspended particles and emulsified oil droplets on the water absorbing capacity in produced water reinjection process, we analyzed the suspended particles filtration model by the depth filtration and formation of the external filter cake, and optimized the solution of the model parameters（the filtration coefficient λ and the formation damage coefficient β）. Based on the solution curves fitted by the core flooding experiment data, and by the numerical solution of the transcendental equation, we obtained the variation rule of filtration coefficient（λ）, formation damage coefficient（β） and impedance slope（m） under the influence of different phase suspended particles. Then we got the impedance of the depth filtration and filter cake formation with piecewise fitting and calculated the particle concentration distribution of the core.

Key words: depth filtration, filter cake formation, filtration coefficient, formation damage coefficient

中图分类号:

TE358

于晓伟,李洪建,吕昀泽等. 悬浮颗粒过滤线性解析模型研究[J]. 油气藏评价与开发, 2018, 8(4): 58-62.

Xiaowei Yu,Hongjian Li,Yunze Lyu, et al. Study on linear analytical model for suspended particle filtration[J]. Reservoir Evaluation and Development, 2018, 8(4): 58-62.

图/表 9

表1

图1

图2

图3

表2

模型参数计算结果"

实验类型	岩心分组	颗粒含量/(mg·L^-1)	$λ$	$λ ?$	$β$
固相颗粒驱替实验	S1-S6	4	38.128 3	38.116 7	3.283 0
	S2-S5	4	37.490 8
	S3-S4	4	38.731 1
固液颗粒驱替实验	M1-M6	2+3	24.890 6	25.619 1	3.035 3
	M2-M5	2+3	26.008 3
	M3-M4	2+3	25.958 3
液相颗粒驱替实验	L1-L6	6	15.234 1	14.756 4	1.743 8
	L2-L5	6	14.297 4
	L3-L4	6	14.737 8

表2

图4

图5

图6

图7

参考文献 7

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[2]	周孙彪, 康宜华, 牛斌 . 油田采油污水回注处理技术回顾与展望[J]. 石油机械, 2002,30(12):38-41. doi: 10.3969/j.issn.1001-4578.2002.12.014
[3]	张宁生 . 固相颗粒与油珠侵入地层孔隙的数学模型及模拟研究[J]. 天然气工业, 1995,15(2):34-37.
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实验类型	岩心编号	长度/ cm	直径/ cm	孔隙度, %	孔隙体积/ cm³
固相颗粒驱替实验	S1	3.5	2.54	12.94	2.29
	S2	4	2.54	12.79	2.59
	S3	4.5	2.54	13.15	3.00
	S4	5	2.54	13.08	3.31
	S5	5.5	2.54	12.89	3.59
	S6	6	2.54	13.21	4.02
固液颗粒驱替实验	M1	3.5	2.54	12.65	2.24
	M2	4	2.54	12.98	2.63
	M3	4.5	2.54	13.41	3.06
	M4	5	2.54	12.61	3.19
	M5	5.5	2.54	13.11	3.65
	M6	6	2.54	12.66	3.85
液相颗粒驱替实验	L1	3.5	2.54	12.88	2.28
	L2	4	2.54	13.31	2.70
	L3	4.5	2.54	13.28	3.03
	L4	5	2.54	12.68	3.21
	L5	5.5	2.54	12.59	3.51
	L6	6	2.54	13.08	3.98