[1]董 钊,张 崇,任冠龙,等.裂缝对压裂充填井产量的影响研究与应用[J].复杂油气藏,2016,(03):74.[doi:10.16181/j.cnki.fzyqc.2016.03.016]
　Dong Zhao,Zhang Chong,Ren Guanlong,et al.Study on effect of fracture on productivity of frac-pack well and its application[J].Complex Hydrocarbon Reservoirs,2016,(03):74.[doi:10.16181/j.cnki.fzyqc.2016.03.016]
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裂缝对压裂充填井产量的影响研究与应用
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2016年03期
页码:
74
栏目:
油气工程
出版日期:
2016-09-25

文章信息/Info

Title:
Study on effect of fracture on productivity of frac-pack well and its application
作者:
董 钊1; 张 崇1; 任冠龙1; 郭敏灵2; 靳书凯1
1.中海石油(中国)有限公司湛江分公司,广东 湛江 524057; 2.中海油能源发展有限公司工程技术湛江分公司,广东 湛江 524057
Author(s):
Dong Zhao1; Zhang Chong1; Ren Guanlong1; Guo Minling2; Jin Shukai1
1.Zhanjiang Company of CNOOC,Zhanjiang 524057,China; 2.Zhanjiang Company of CNOOC Energy Development Limited,Zhanjiang 524057,China
关键词:
压裂充填 裂缝参数 产能 数值模拟
Keywords:
frac-pack;  fracture parameter;  deliverability;  numerical simulation
分类号:
TE357.14
DOI:
10.16181/j.cnki.fzyqc.2016.03.016
文献标志码:
A
摘要:
在海上浅层油气资源开发中,常常遇到物性较差的弱胶结疏松砂岩储层,同时面临防砂和增产问题,需要采取压裂充填措施。考虑疏松砂岩的应力敏感性,同时考虑长期裂缝导流能力的衰减,建立端部脱砂压裂的油藏-裂缝渗流系统三维两相数学模型。求解后获得压裂充填后裂缝缝长、裂缝导流能力对产量的影响规律,根据模拟结果获取最佳的参数值。结果表明:对疏松砂岩储层进行压裂充填,其产量对裂缝长度较为不敏感,而受裂缝导流能力影响非常大; 裂缝长度和导流能力增加带来的相对增产效果存在一个最高值; 压裂充填形成的裂缝导流能力下降较快,但油井长期累计产量受其影响产生的下降幅度远小于导流能力自身的下降幅度。
Abstract:
In the development of shallow offshore oil-gas resource,often encountering the weak unconsolidated sandstone reservoir with poor physical properties,meanwhile facing the sand prevention and increase production issues,it is need to take the frac-pack measure.Considering the stress sensitivity of unconsolidated sandstone and the attenuation of long-term fracture conductivity,it was established a three-dimensional two-phase mathematical model for seepage system in reservoir fractured by the tip screen-out fracturing.The model was resolved to study on the influence rule of length and conductivity of fractures on productivity after frac-pack.Based on numerical simulation results,the optimal parameter values were obtained.The result indicated that the production of wells in the unconsolidated sandstone reservoir after frac-pack is not sensitive to the fracture length and greatly affected by the fracture conductivity.There is a maximum value of increased production caused by the increases in the fracture length and fracture conductivity.The fracture conductivity after the frac-pack was decreased rapidly,but the decline rate of the long-term cumulative production is much less than that of the fracture conductivity.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-12-05; 改回日期:2016-03-07。
作者简介:董钊(1987—),现从事完井工艺研究和管理工作。电话:18312738599,E-mail:dongzhao911@163.com。
基金项目::国家重大专项大型油气田及煤成气开发(2011ZX05030-005)资助。
更新日期/Last Update: 2016-09-30