微锰加重剂在高密度油基钻井液中的作用评价  

Evaluation of effect of micro-manganese aggravating agent in high density oil based drilling fluid

作　　者：刘玉林 LIU Yu-lin(Northeast Petroleum University, Institute of Petroleum Engineering, Daqing 163000, China)

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163000

出　　处：《化学工程师》2018年第5期52-54,共3页Chemical Engineer

摘　　要：随着深水井,大位移井,高温高压井以及窄密度窗口井的钻井作业的进行,对钻井液性能要求越来越高,尤其是对高密度及超高密度下钻井液流变性,造壁性,沉降稳定性以及储层保护性能的要求,常规的API重晶石已经不能满足特殊井钻进的需求。因此,必须寻求新型加重剂来满足日趋发展的钻井工程需求。近年来微细重晶石、微锰、微细钛铁粉等新型加重剂掘起,在现场使用取得较好的效果。本文通过室内试验研究了微锰加重剂在油基钻井液中的加重性能以及对高密度油基钻井液流变性和沉降稳定性的影响,确定了微锰加重剂与API重晶石复配使用的最佳配比。With the drilling operation of deep wells, large reach wells, high temperature and high pressure wells and narrow density window wells, the performance requirement of drilling fluid is higher and higher, especial- ly for the rheological properities wall building properities, sedimentary stability and the ability of reservoir protection under high density and ultra-high density. The conventional API barite hasno longer meet the requirements of drilling in special wells .Therefore, it is necessary to seek a new weight agent to meet the increasing demand of drilling engineering.In recent years, fine barite, micro-manganese, micro-fine iron titanate and other new weighting agents haveexcavated again, and had good resuhsin application .In this paper, the aggravation performance of micro-manganese weighting agent in oil-based drilling fluid and its influence on rheology and settling stability of high-density oil-base drilling fluid are studied through laboratory tests, and the optimum ratio of micro-manganese weighting agent and API barite compound is determined.

关 键 词：流变性 沉降稳定性 微锰加重剂 最佳配比 

分 类 号：TE242[石油与天然气工程—油气井工程]