摘要
地热井钻井具有高温、地层压力低、地层破碎等特点,采用抗高温泡沫水泥进行固井,要求泡沫剂具有一定的抗高温性能。本文评价和优选了多种泡沫剂在常温和180℃高温下的起泡能力、稳定性,并且将优选出来的单种发泡剂进行复配评价,得到最佳的复配体系为SLES∶CAO∶CAB=63.3∶31.7∶5,并且与单种发泡剂进行比较,将所得最佳复配体系加入到API G级油井水泥体系中进行性能的初步评价。
In the drilling of geothermal wells, high-temperature resistance foamed cement is used to cementing for that wells have features of high tem- perature, low formation pressure, and broken formation. It requires that the foam agents can be of high temperature resistance to ensure foamed cement ce- menting effectively. This study focused on the evaluation and optimization of various kinds of foam agents at room temperature and 180℃ for foaming ability and stability. Then compound evaluation was made for the optimum single surfactant to determine the best distribution system as SLES ： CAO ： CAB = 63. 3 ： 31.7 ： 5, which is compared with single surfactant. Finally, we conducted a preliminary evaluation of the foamed cement with adding the optimum sys- tem to API class G oil well cement.
出处
《地质与勘探》
CAS
CSCD
北大核心
2015年第6期1181-1186,共6页
Geology and Exploration
基金
国家自然科学基金项目(编号:41572361)资助
关键词
抗高温
泡沫剂
复配体系
泡沫水泥
high-temperature resistance, foam agent, compound system, foamed cement
作者简介
谭慧静（1990年-），女，2012年毕业于中国地质大学（北京），获学士学位，现为中国地质大学（北京）在读博士，主要研究方向为地热资源的勘探与开发。E-mail：thj0528@163．com。
