[1]高 超,艾 昆,高 辉,等. 基于施工压力曲线的综合滤失系数测试方法及压裂参数优化[J].油气井测试,2018,27(01):8-13.[doi:10.19680/j.cnki.1004-4388.2018.01.002]
　GAO Chao,AI Kun,GAO Hui,et al.Test method of total leak-off coefficient and optimization of fracturing parameters based on operation pressure curves[J].Well Testing,2018,27(01):8-13.[doi:10.19680/j.cnki.1004-4388.2018.01.002]
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 基于施工压力曲线的综合滤失系数测试方法及压裂参数优化()
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《油气井测试》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2018年01期
页码:
8-13
栏目:
出版日期:
2018-02-25

文章信息/Info

Title:

Test method of total leak-off coefficient and optimization of fracturing parameters based on operation pressure curves

文章编号:
1004-4388(2018)01-0008-06
作者:
 高 超1; 艾 昆1; 2;  高 辉1; 段隆臣1
 1. 中国地质大学（武汉）工程学院 湖北武汉 430074
2. 中国石化华北石油工程有限公司井下分公司 河南郑州 450042
Author(s):
 

GAO Chao1;  AI Kun1; 2;  GAO Hui1;  DUAN Longchen1

 

1. School of Engineering, China University of Geosciences, Wuhan, Hubei 430074, China

2. Downhole Branch Company, Sinopec Huabei Petroleum Engineering Co., Ltd., Zhengzhou, Henan 450042, China

关键词:
 ; 压裂; 压裂液; 施工压力曲线; PKN模型; 反演; 综合滤失系数; 压裂设计方法; 大牛地气田
Keywords:
 ; 

fracture;  fracturing fluid;  operational pressure curve;  PKN model;  inversion;  total leak-off coefficient;  unified fracture design (UFD) method;  Daniudi gas field

分类号:
TE357
DOI:
10.19680/j.cnki.1004-4388.2018.01.002
文献标志码:
A
摘要:
 在水力压裂施工中，压裂液的滤失性质直接影响压裂液的工作效率，从而影响形成的水力裂缝几何尺寸和导流能力，故准确地测试施工过程中压裂液滤失情况对评价改造效果很重要。以大牛地某气井压裂为例，在二维裂缝扩展模型（PKN）下，利用该模型的净压力公式建立施工压力计算模型，计算施工过程中的施工压力曲线，最后通过计算的施工压力曲线与实际施工压力曲线反演获取压裂液综合滤失系数。研究结果表明，该井施工中压裂液综合滤失系数为0.1 mm/min 0.5，利用该反演结果，采用统一压裂设计（UFD）方法优化主要的压裂施工参数，优化后，前置液量为490 m 3，施工排量为9 m 3/min。该方法反演效果较好，利用该方法可为判断压裂施工效果和优化施工参数提供一定依据。
Abstract:
 

In hydraulic fracturing construction, the filter loss property of fracturing fluid directly affects the working efficiency of fracturing fluid, and thus affects the geometrical size and conductivity of forming hydraulic fracture, and therefore, it is very important to evaluate the effect of reformation by accurately testing the fluid filtration in the construction process. With a gas well in Daniudi gas field as an example, the operational pressure model was built on the basis of 2D fracture propagation model (e.g. PKN) to determine the operational pressure curves. Then, the calculated operational pressure curves were inverted with the actual operational pressure curves to obtain the total leak-off coefficient of fracturing fluids. The results show that the total leak-off coefficient of fracturing fluids in the well is 0.1 mm/min0.5. Based on the inversion results, the unified fracture design (UFD) technique was used to optimize key fracturing parameters. As a result, the volume of prepad fluid was 490 m3, and the flow rate was 9 m3/min. Accordingly, the leak-off coefficient of fracturing fluids is successfully obtained through inversion of operational pressure curves, thus providing reliable references to determine performances of fracturing operations.

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备注/Memo

备注/Memo:
 收稿日期 2017-07-21收稿，2018-01-06修回，2018-01-15接受，2018-03-30网络发表
高超，男，1992年出生，中国地质大学（武汉）工程学院地质工程专业硕士学位在读，主要从事油气增产措施方面的研究工作。电话：027-67883507，15002764927；Email：405607947@qq.com。地址：湖北省武汉市洪山区鲁磨路388号，邮政编码：430074。
更新日期/Last Update: 2018-04-26