低温低密度水泥复合减轻材料研究  

Study on the Composite Mitigating Materials Applications in Low Temperature and Low Density Cement System

作　　者：雷霆 王大珩 翟文周 相文芮 蔡健 代丹 姚晓[2] LEI Ting;WANG Da-heng;ZHAI Wen-zhou;XING Wen-rui;CAI Jian;DAI Dan;YAO Xiao(Oilfield Chemicals Division,COSL,Yanjiao Hebei 065201,China;College of Material Science and Engineering,Nanjing Tech University,Nanjing 211816,China)

机构地区：[1]中海油田服务有限公司,河北燕郊101601 [2]南京工业大学材料科学与工程学院,南京211816

出　　处：《科技和产业》2020年第7期171-175,共5页Science Technology and Industry

基　　金：中国海洋石油总公司项目(CNOOC-KJ 125 ZDXM12 LTD YF2015-01)资助。

摘　　要：深水固井一直存在低环境温度、低破裂压力梯度、潜在浅层流、材料成本较高等技术难题。针对这些问题开发出了一种适用于低温(10℃)深水固井的低密度水泥复合减轻材料体系KBS1053,该水泥体系的密度为1.55 g/cm3,具有低温下凝结速度较快、低温强度发展较好、浆体流动性较好等特点,其早期抗压强度高于同等密度空心玻璃微珠低密度水泥体系,且原材料来源广泛,具有良好的工程性能和经济效益。Deep water cementing has been faced with technical problems such as low ambient temperature,low fracture pressure gradient,potential shallow flow and high material cost.Aiming at these problems,Aiming at these problems,a kind of low density cement composite lightening material system KBS1053 is developed,which is suitable for deep water cementing at low temperature(10℃).The density of the cement system is 1.55 g/cm3,which has the characteristics of faster condensation rate at low temperature,better strength development at low temperature,and better slurry fluidity.Its early compressive strength is higher than that of the low-density cement system with the same density of hollow glass microbeads.Moreover,the raw materials are widely sourced,which has good engineering performance and economic benefits.

关 键 词：深水固井 油井水泥 复合减轻材料 低温 低密度 

分 类 号：TU525[建筑科学—建筑技术科学]