[1]刘长印.焦石坝地区页岩气水平井压裂快速选段方法[J].油气井测试,2019,28(06):9-13.[doi:10.19680/j.cnki.1004-4388.2019.06.002]
　LIU Changyin.Rapid fracturing layer selecting method for horizontal shale gas wells in Jiaoshiba area[J].Well Testing,2019,28(06):9-13.[doi:10.19680/j.cnki.1004-4388.2019.06.002]
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焦石坝地区页岩气水平井压裂快速选段方法()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
28
期数:
2019年06期
页码:
9-13
栏目:
出版日期:
2019-12-25

文章信息/Info

Title:
Rapid fracturing layer selecting method for horizontal shale gas wells in Jiaoshiba area
文章编号:
1004-4388(2019)06-0009-05
作者:
刘长印
 中国石化石油勘探开发研究院采油所·中国石油化工集团公司海相油气藏开发重点实验室 北京 100083
Author(s):
LIU Changyin
Petroleum Exploration and Production Research Institute·Key Laboratory of Marine Oil & Gas Reservoir, SINOPEC, Beijing 100083, China
关键词:
页岩气;  压裂;  水平井;  选段方法;  评价系数;  水平井段;  权评价系数
Keywords:
shale gas;  fracturing;  horizontal well;  layer selection method;  evaluation coefficient;  horizontal well section;  weight evaluation coefficient
分类号:
TE357
DOI:
10.19680/j.cnki.1004-4388.2019.06.002
文献标志码:
A
摘要:
针对页岩气非均质储层水平井压裂有效段数少、段贡献率低的状况，研究了一种针对页岩气水平井分段压裂的选段方法。该方法筛选出影响页岩气含气量计算的地层密度、声波时差、自然伽马、气测全烃含量和钻时等主要参数，结合主要参数对压裂效果的影响程度，赋予每个参数特定的权值。根据各参数实际值的变化范围，建立该参数权评价系数计算公式，将各参数权评价系数相加得总评价系数，对页岩气水平井进行选段。经40多口页岩气水平井实际应用表明，水平井段内评价系数大于05段越多，压裂后产量高，水平井段内评价系数大于05段越少，压裂后产能较低。该方法提高了页岩气水平井段压裂选段的准确性，对页岩气水平井压裂方案设计具有一定指导意义和借鉴作用。
Abstract:
 A method of fracturing layer selection for horizontal wells of shale gas is studied because the number of effective fracturing layers is small and the contribution rate of fracturing layers is low in horizontal wells of heterogeneous shale gas reservoirs. The method firstly screens out the main parameters affecting the calculated shale gas content, such as DEN, AC, GR, gas logging hydrocarbon content and drilling time and so on. Secondly, combined with the influence degree of the main parameters on
the fracturing effect, each parameter is given a specific weight. Thirdly, according to the variation range of the actual value of each parameter, the formula for calculating the weighted evaluation coefficient of each parameter is established. Lastly, the total evaluation coefficient is obtained by adding the weighted evaluation coefficients of each parameter to select the layer of shale gas horizontal wells. Practical application of more than 40 shale gas horizontal wells shows that the more the evaluation coefficient in horizontal layer which is greater than 05, the higher the production after fracturing, vice versa. This method improves the accuracy of fracturing section selection in horizontal shale gas wells, and has certain guiding significance and reference for fracturing scheme design of horizontal shale gas wells.

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备注/Memo

备注/Memo:
 2019-06-08收稿，2019-10-12修回，2019-10-24接受，2019-12-20 网络版发表
国家科技重大专项“大型油气田及煤层气开发”子课题“中西部地区碎屑岩领域勘探关键技术”（2016ZX05002-005）
刘长印，男，1965年出生，博士，高级工程师，2004年毕业于西南石油大学石油与天然气开发专业，主要从事试油测试、压裂等技术研究及管理工作。电话：010-82316405，13021208397；Email：jxdzslcy@163.com。通信地址：北京市海淀区学院路31#，邮政编码：100083。
更新日期/Last Update: 2020-01-09