钻井液与完井液2018，Vol.35Issue(1)：53-56,4.DOI:10.3969/j.issn.1001-5620.2018.01.010
高滤失承压堵漏技术
Lost Circulation Control with High Filtration Lost Circulation Materials
侯士立 1刘光艳 2黄达全 1汤长青 2舒儒洪 1魏尽然3
作者信息
- 1. 中国石油集团渤海钻探泥浆技术服务分公司,天津300280
- 2. 桂林理工大学化学与生物工程学院,广西桂林541004
- 3. 中国石油集团渤海钻探第三钻井工程分公司,天津300280
- 折叠
摘要
Abstract
Lost circulation materials with high filtration rate can be used in plugging mud loss zones and enhancing the pressure bearing capacity of the formation.The lost circulation material (LCM) losses its liquids swiftly when spotted at the loss zones and the solids of the LCM formed solid plugs inside the channels through which the mud losses.Drilling fluid flowing passing the surfaces of the solid plugs losses its liquids and forms dense mud cakes on the surfaces of the solid plugs,thereby increasing the pressure bearing capacity of the formation.A high filtration rate LCM has been developed for use in lost circulation control.It has almost no effect on mud rheology,and the volume of the filtrate in 30 s was 180 mL.It can be weighted to 2.3 g/cm3 with barite.In laboratory experiments,the high filtration rate LCM was tried on simulated fractures of different widths,and the pressure bearing capacity was 7 MPa.The high filtration rate LCM has been tried in field operations 7 times in different wells.It has been shown that the success rate using the high filtration rate LCM was 71％,and the time spent in controlling mud loss was only 3-4 h.The successful application of the high filtration rate LCM has provided technical support to high quality high efficiency drilling operations.关键词
井漏/井壁强化/堵漏/高滤失/承压能力Key words
Mud loss/Borehole wall strengthening/Mud loss control/High filtration rate/Pressure bearing capacity分类
能源科技引用本文复制引用
侯士立,刘光艳,黄达全,汤长青,舒儒洪,魏尽然..高滤失承压堵漏技术[J].钻井液与完井液,2018,35(1):53-56,4.
