注水井解调联作选井选层方法研究与应用

Abstract

Abstract:

The acidizing-water shutoff joint operation technology is an effective method to resolve the plugging, control the water injection profile, and improve the injection effect of the damaged injection wells with the strong heterogeneity. There are many factors affecting the effectiveness of the acidizing-water shutoff joint operation. Due to the complex nonlinear relations of the various factors, the traditional statistical methods is limited. To solve this problem, and based on the analysis of the effect of the acidizing-water shutoff joint operation for the water injection wells, we calculate the correlation coefficients between the factors and the increasing injection ratio by the pearson correlation coefficient method. And according to the correlation coefficient, the relative importance of each factor is determined. Then, the weight of each factor is decided by the fuzzy analytical hierarchy process. This new method is used to calculate the injection wells in the Bohai Oilfield, and the decision value is consistent with the results of the field operation. This method is reliable and simples and provide the powerful guarantee for improving the success rate of acidizing-water shutoff joint operation for injection wells.

Key words: acidizing-water shutoff joint operation, Well and layer selection, correlation coefficient, hierarchical analysis

CLC Number:

TE357

Zhao Liqiang,Xian Chao,Luo Zhifeng,Lan Xitang. Research and application of candidate injection well and layer selection method for acidizing-water shutoff joint operation[J].Reservoir Evaluation and Development, 2018, 8(1): 54-57.

Figures/Tables 6

Table1

Scale of improtance"

标度	定义	说明	对应相关系数
0.5	同等重要	两元素相比,同等重要	[0,0.2]
0.6	稍微重要	两元素相比,一元素比另一元素稍微重要	[0.2,0.4]
0.7	明显重要	两元素相比,一元素比另一元素明显重要	[0.4,0.6]
0.8	重要得多	两元素相比,一元素比另一元素重要得多	[0.6,0.8]
0.9	极端重要	两元素相比,一元素比另一元素极端重要	[0.8,1]
0.1,0.2,0.3,0.4	反比较	若元素 $a i$ 比 $a j$ 得到判断矩阵 $r ij$ ,则元素 $a j$ 比 $a i$ 得到判断矩阵 $r ji$ =1- $r ij$ 。

Table1

Table2

Characteristic data of 12 wells"

井号	H/m	$K ?$ /10^-3μm²	$K V$	$J ?$	$W ?$	$W V$	LT	Unp	WCUT	QZ	$I w$	S	P
A1	22.3	418.1	0.6	1.8	0.3	0.3	0.3	0.8	0.7	0.2	0.8	10.0	0.4
A2	47.1	1 279.7	1.0	1.4	0.3	0.7	0.4	0.8	0.4	0.8	0.8	12.0	5.2
A3	33.3	785.4	1.0	1.2	0.5	1.0	0.8	0.8	0.3	0.2	1.0	38.0	10
A4	44.3	1 875.4	0.8	0.5	0.5	0.6	0.4	0.7	0.4	0.2	0.5	22.0	2.5
A5	40.0	886.0	0.7	1.5	0.4	0.8	0.4	0.6	0.5	0.0	0.6	12.0	0.5
A6	40.9	642.3	0.9	1.3	0.4	1.0	0.6	0.8	0.9	0.5	0.4	29.0	10
A7	12.7	283.2	0.9	1.3	0.7	0.5	0.7	0.7	0.0	0.1	0.4	8.0	1.8
A8	47.1	1 279.7	1.0	0.9	0.3	0.7	0.5	0.8	0.7	0.4	0.5	14.0	5.8
A9	40.9	642.3	0.9	1.4	0.4	0.5	0.6	0.8	0.9	0.3	0.4	15.0	5.1
A10	5.1	288.6	0.4	1.2	0.3	0.3	0.4	0.6	0.4	0.8	0.7	38	0.5
A11	28.3	1080.9	0.6	1.5	0.4	1.0	0.7	0.6	0.5	0.5	0.4	15	2.8
A12	21.8	867.9	0.7	1.3	0.5	0.6	0.6	0.7	0.5	0.3	0.6	18	2.6

Table2

Table 3

Correlation between influence factors and augmented injection ratio"

因素	H	$K ?$	$K V$	$J ?$	$W ?$	$W V$	LT	Unp	WCUT	QZ	$I w$	S
相关系数	0.33	0.01	0.74	0.19	0.01	0.79	0.67	0.69	0.25	0.42	0.16	0.86

Table 3

Table4

Weight of well selection factors in break down joint with profile control"

因素	H	$K$	$K V$	$J ?$	$W ?$	$W V$	LT	Unp	WCUT	QZ	$I w$	S
权重	0.075	0.058	0.108	0.058	0.058	0.075	0.108	0.108	0.075	0.092	0.058	0.125

Table4

Table 5

Fig. 1

References 11

[1]	黄波, 刘福海, 刘义刚 , 等. 调剖技术在渤海油田的应用[C]// 中国石油学会全国油田注水技术研讨会. 2005.
[2]	Song Q, Sun Y, Zhou J . Quantifying the reservoir heterogeneity: A case study of clastic reservoirs, Bohai Bay Basin, China[C]// paper SEG-2009-1760 presented at the 2009 SEG Annual Meating, 25-30 October 2009, Houston, Texas, USA.
[3]	刘晓光 . 渤海油田酸化工艺技术[J]. 中国海上油气:工程, 1995,7(4):50-56.
[4]	彭雪飞, 冯浦涌, 黄雷 , 等. 海上高温低渗油田酸化技术应用研究[J]. 海洋石油, 2008,28(2):73-76.
[5]	刘平礼, 张璐, 潘亿勇 , 等. 海上油田注水井单步法在线酸化技术[J]. 西南石油大学学报:自然科学版, 2014(5):148-154.
[6]	吴建发, 郭建春, 赵金洲 . 模糊分析方法优选压裂井层[J]. 天然气工业, 2005,25(2):84-86. doi: 10.3321/j.issn:1000-0976.2005.02.027
[7]	位云生, 胡永全, 赵金洲 , 等. 人工神经网络方法在水力压裂选井评层中的应用[J]. 断块油气田, 2005,12(4):42-44.
[8]	谢润成, 周文, 高雅琴 , 等. 应用偏相关+灰关联方法进行致密砂岩气藏压裂地质选层[J]. 石油与天然气地质, 2008,29(6):797-800. doi: 10.3321/j.issn:0253-9985.2008.06.014
[9]	张吉军 . 模糊层次分析法(FAHP)[J]. 模糊系统与数学, 2000,14(2):80-88. doi: 10.3969/j.issn.1001-7402.2000.02.016
[10]	黄晶, 李年银, 刘平礼 , 等. 基于模糊物元的注水井酸化井层选择[J]. 石油天然气学报, 2013,35(8):133-138. doi: 10.3969/j.issn.1000-9752.2013.08.031
[11]	刘文超. 调剖(驱)施工设计和决策系统研究[D]. 黑龙江大庆:东北石油大学, 2012.

Research and application of candidate injection well and layer selection method for acidizing-water shutoff joint operation

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