高密度钻井液加重剂回收技术  

RECLAIMING HEAVY LOADER OF HIGH-DENSITY DRILLING FLUID

作　　者：张晓东[1] 李俊[1] 张斌[2] 范强[1] 

机构地区：[1]西南石油大学机电工程学院 [2]中国石油塔里木油田公司

出　　处：《天然气工业》2007年第9期48-50,共3页Natural Gas Industry

基　　金："石油天然气装备"教育部重点实验室项目(编号:2006STS02)的资助

摘　　要：随着深井、超深井钻井技术的发展,高密度钻井液加重剂的回收再利用日益受到重视。为此,通过研究有害固相与加重剂的粒度分布,建立了数学模型,确定出回收加重剂的最佳分离点,得到相应回收设备的工作参数。结合油气田现有固控系统的配置,设计出回收加重剂的系统配置方案:采用细目振动筛+可调速离心机+高速离心机的组合方式,通过控制阀门、流量计及变频器合理结合,达到把加重剂分离出来,同时将其有害固相加以清除的目的。通过在塔里木油田神木一井的现场实验,验证了回收加重剂理论模型的有效性。该技术能回收大量的加重剂、节约加重剂的费用、减少矿产资源损耗,更有效地解决了环境污染问题,具有显著的社会经济效益。With the development of deep well and ultra deep well drilling technology, the reclaiming of heavy loader of high-density drilling fluid is gradually emphasized. In this paper, through research on the grain distribution of useless solids and heavy loader, the mathematical model is established to determine the optimum separation point of heavy loader to be reclaimed and the working parameters of reclamation equipment. Combined with existent solid control equipment used at the oil fields, the system is configured, which is assembling of fine-screen shaker, adjustable centrifuge and high-speed centrifuge. The heavy loader and useless solids can be removed from the high density drilling fluid by controlling the valves, flow meters and frequency converters properly. The field test on Well Shenmu-1 at Tarim oil field has proved the correctness of the model for heavy loader reclamation.

关 键 词：钻井液 固体 高密度 加重剂 数学模型 离心机 

分 类 号：TE254[石油与天然气工程—油气井工程]