压裂水平井水电模拟实验边界修正方法

Abstract

Abstract:

When we studied the relation between the fracture spacing and production rate by water and electricity analogy experiments, if the boundary range was small, the influence of the distance between the fracture and the boundary on the production would be difficult to be neglected. Actually, this relation was affected by both the fracture spacing and the distance between fractures and boundary. In order to overcome this shortcoming, we proposed a new method to extract this influence by experimental measurement and formula correction, then, to eliminate the influences of fracture and boundary distance on fracture production rate. This method reflected the real relation between the fracture spacing and the production rate, and provided effective guidance for fracturing designs.

Key words: water and electricity analogy experiment, boundary, fracture, production rate

CLC Number:

TE312

Linlin Li. A boundary modification for water and electricity analogy experiment of fractured horizontal wells[J]. Reservoir Evaluation and Development, 2019, 9(1): 61-64.

Figures/Tables 6

Table 1

Correspondence of seepage field and current field"

渗流场		电流场
拉普拉斯方程	$2 p = 0$	拉普拉斯方程	$2 U = 0$
达西定律	$v = - (K μ) p$	欧姆定律	$I = - ρU$
渗流速度	v	电流密度	J
流体流量	q	电流	I
流动系数	K/μ	电导率	ρ

Table 1

Fig. 1

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References 12

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A boundary modification for water and electricity analogy experiment of fractured horizontal wells

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