第45卷第3期
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
压裂液连续混配技术及在“工厂化”压裂中的应用
吴文刚刘友权易大森”熊颖’陈鹏飞’代运
1.中国石油西南油气田公司天然气研究院2.中国石油天然气第七建设公司3.四川长宁天然气开发有限责任公司
摘要随着国内页岩气“工厂化”压裂的大规模应用，施工用液量大、罐群数量多、场地占用面积大，传统的配液方式已不能满足“工厂化”压裂的需求。详细研究了配液用稠化剂溶解特性，指出滑溜水连续混配关键在于降阻剂的流动性能及溶解性能，粉末瓜尔胶可利用其弱碱性分散、弱酸性溶解的特性，结合现有国产连续混配装置来实现连续混配。开发出的大液量、大排量压裂液连续混配技术，在页岩气“工厂化”压裂中得到了推广应用，缩短了施工作业周期、降低了现场作业强度、避免了压裂液腐烂变质，实现了高效、绿色环保的压裂施工。
关键词页岩气“工厂化”压裂滑溜水瓜尔胶连续混配
中图分类号：TE37
文献标志码：A
D0I:10.3969/j.issn.1007-3426.2016.03.012
Applicationoftechnologyof continuousmixingfracturingfluid
on“"large-scale" fracturing
Wu Wengang', Liu Youquan',Yi Dasen’Xiong Ying', Chen Pengfei', Dai Yun
(l. Research Institute of Natural Gas Technology , PetroChina Southwest Oil & Gasfield Company
Chengdu 610213, China;2. the Serenth Construction of China Petroleum and Natural Gas
Company- Qingdao 266300, China, 3. Sichuan Changning Gas Development Co., Lid., Chengdu 610051, China) Abstract: The application of domestic shale gas "large-scale" fracturing results in higher fluid consumption ,more tank groups and wider occupied area of cluster horizontal wells ,the traditional fracturing fluid mix-processing can not meet the demand of large-scale fracturing . Based on the detailed study of the dissolution characteristic of thickening agent ,it is pointed out that the key of gliding water continuous mix-processing is the flow and dissolve performance of drag reduction agent -using the characters of guar gum pow der scattered in weakly alkaline media and dissolved in weak acid media, and combined with the continuous mixing device , technology of fracturing fluid with large liquid volume and large displacement is developed , and applied in the production of shale gas . The technology shortened the operation cycle , reduced the intensity of field operation , and also avoided the fracturing fluid deterioration . It finally achieves efficient and environmental-friendly fracturing operation.
Key words : shale gas, "large-scale" fracturing , slick water , guar gum , continuous mixing process
根据页岩储层脆、塑性的不同.体积压裂用液体有滑溜水、线性胶、弱凝胶等多种类型"。由于页岩压裂用液量大，施工排量高，传统逐罐配液模式已不能满足
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“工厂化”压裂的需求，连续混配工艺就是把以前和现在一直沿用的预先配液变成边配边施工的连续式作业，所有的化学药剂都在施工过程中逐渐加入。国外
作者简介：吴文刚(1984一），工程师，硕士。现就职于中国石油西南油气田公司天然气研究院，主要从事油气增产技术研究。 E-mail wuwg@petrochina.com.cn