摘要
为评价水泥浆体系的防窜能力,进行了多功能水泥浆体系测窜仪的研制。首先进行了窜槽原理分析,气/液窜与环空水泥浆的液柱压力变化有关,水泥浆环空液柱压力可以视为静胶凝强度发展的函数;基于这一原理,研制出多功能测窜仪,该仪器采用扭矩法测静胶凝强度;给出防窜性能测试方法,并借助超声波强度仪对多功能水泥浆体系测窜仪工作的可靠性进行检验;最后以常用密度水泥浆进行实例验证,结果表明,多功能水泥浆体系测窜仪可用于水泥浆体系防窜性能评价。
To evaluate the anti-channeling ability of cement slurry system,a multifunction channeling measured instrument is developed.The channeling principle is analyzed that gas or liquid channeling is due to the fluid column pressure of annular slurry,and the fluid column pressure can be regarded as a function of the static gel strength development.This instrument measures the static gel strength with torque method,and the measuring reliability of that is tested with the ultrasonic intensity instrument.Moreover,through the test of normal density cement slurry,the result show that this instrument can be used for the channeling evaluation of cement slurry system.
出处
《钻井液与完井液》
CAS
北大核心
2012年第6期59-61,90,共3页
Drilling Fluid & Completion Fluid
基金
国家科技重大专项的子课题(2008ZX05057-002-03)
山东省自然科学基金课题(ZR2011EEQ012)
中央高校基本科研业务费专项资金资助(27R1202001A)
高等学校博士学科点专项科研基金资助课题(20110133120013)
关键词
固井
水泥浆
测窜仪
防窜
Cementing
Cement slurry
Channeling measured instrument
Anti-channeling