钻井液与完井液2025，Vol.42Issue(3)：392-397,6.DOI:10.12358/j.issn.1001-5620.2025.03.016
低温低密度早强水泥浆体系研究及应用
Study on and Application of a Low Temperature Low Density Early Strength Cement Slurry
孙建峰 1付玥颖 2邱卫红 2刘景丽 2赵秋羽 2曹洪昌2
作者信息
- 1. 中国石油勘探开发研究院石油工业标准化研究所,北京 102206
- 2. 渤海钻探工程技术研究院,天津 300457
- 折叠
摘要
Abstract
Coalbed methane(CBM)well operations in the north usually have to deal with problems such as low ambient temperature,formations with low pressure bearing capacities and extremely low fracture pressures,and low-density cement slurries that do not cure and develop strength for a long term in low temperature environment,et al.By optimizing an early-strength supplementary materials and supporting additives,a low temperature low density early strength cement slurry with density between 1.03 g/cm3 and 1.30 g/cm3 and suitable for cementing CBM wells was developed.Laboratory studies show that this cement slurry has good settling stability,a fluidity of 19-22 cm,a water bleeding ratio of 0%,a thickening time that is adjustable,and an API filter loss of less than 50 mL.After aging for 48 h at 4℃,the compressive strength of the set cement is at least 7.0 MPa.This cement slurry has been used for 12 well times,of all the cemented well sections,93.03%met the well cementing quality requirement,86.70%were cemented with excellent quality,and the job quality of cementing the shallower pay zones in winter was obviously improved.关键词
煤层气固井/低温低密度水泥浆/冬季施工/固井质量Key words
Coal bed methane well cementing/Low temperature low density cement slurry/Operation in winter/Well cementing quality分类
能源科技引用本文复制引用
孙建峰,付玥颖,邱卫红,刘景丽,赵秋羽,曹洪昌..低温低密度早强水泥浆体系研究及应用[J].钻井液与完井液,2025,42(3):392-397,6.
