废弃油气管道处置的注浆技术  

A grouting technology for the disposal of abandoned oil and gas pipelines

作　　者：裴东波[1] 高振波[1] 李在蓉[2] 康叶伟[2] 王洪涛[1] 卢启春[1] 郭正虹[2] 孙雷[3] PEI Dongbo;GAO Zhenbo;LI Zairong;KANG Yewei;WANG Hongtao;LU Qichun;GUO Zhenghong;SUN Lei(PetroChina Pipeline Company;PetroChina Pipeline R ＆ D Center;Shenyang Oil ＆ Gas Transportation Sub-company, PetroChina Pipeline Company)

机构地区：[1]中国石油管道公司 [2]中国石油管道科技研究中心 [3]中国石油管道公司沈阳输油气分公司

出　　处：《油气储运》2018年第5期568-573,578,共7页Oil & Gas Storage and Transportation

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目"油气管道判废及处置技术研究";2014B-3415-0504

摘　　要：管道注浆是废弃管道安全环保处置过程中的必要措施,注浆材料试验测试、关键注浆设备对比、注浆方法现场应用试验对于解决不同环境条件下油气管道的注浆问题尤为重要。研究结果表明:纯水泥、水泥-粉煤灰、水泥-黏土、水泥-粉土4类注浆材料具有价格便宜、获取便利、环保等特点,通过不同添加剂的调配可满足不同环境条件下管道注浆的需要;油气管道注浆宜采用往复泵,浆料搅拌可根据需要选择浆式、推进式或涡轮式搅拌器;纯压力注浆方法可解决短距离管道一次性注浆问题,而真空辅助压力注浆方法可实现长距离注浆;油气管道长距离快速注浆宜采用多台泵、移动浆液缓冲池,并可通过对浆液固化后的强度、结石率指标以及浆液注入总量的控制,保障最终注浆效果。Pipeline grouting is a necessary measure to dispose abandoned pipelines safely and environmentally. It is particularly important to carry out experimental tests on grouting materials, compare key grouting equipments and test grouting methods on site, in order to solve grouting problems of abandoned oil and gas pipelines under different environmental conditions. The following research results were obtained. First, the grout materials mainly composed of pure cement, compounds of cement-fly ash or cement-clay or cement silt are cheap, convenient to access and environmentally friendly, and they can satisfy the requirements of pipeline grouting under different environmental conditions by adding different additives. Second, it is appropriate to apply the reciprocating pump to the grouting of oil and gas pipelines, and grout materials can be stirred by means of paddle, propeller or turbine agitator according to the requirements. Third, pure pressure grouting method can realize the one-trip short distance grouting, and vacuum assisted pressure grouting method can realize long distance grouting. And fourth, for the long-distance fast grouting of oil and gas pipelines, it is appropriate to adopt multiple pumps and mobile grout pool and control the strength after the solidification, concretion rate and total injecting volume to ensure the ultimate grouting effect. （I Figure, 20 References）

关 键 词：油气管道 废弃 注浆材料 真空辅助压力注浆 注浆泵 

分 类 号：TE88[石油与天然气工程—油气储运工程]