新型抑制剂AC-34的研究与应用  

Study and application of a novel shale inhibitor AC-34

作　　者：何银花[1] 周玉新[1] 昝进平 李洪俊[1] 

机构地区：[1]大港油田集团有限责任公司钻采院

出　　处：《钻井液与完井液》1999年第6期17-19,共3页Drilling Fluid & Completion Fluid

摘　　要：用水基钻井液钻泥页岩地层时,由于泥页岩中粘土矿物具有较强的水化分散作用,造成井眼膨胀、缩径及井壁坍塌等井下复杂事故。为此研制了一种泥页岩水化反应活性低、价格便宜、无环境污染及适应性强的钻井液抑制剂AC-34。该剂是由淀粉经水解、缩聚,与Al^(3-)络合而成的一种络合物抑制剂。现场实验表明,AC-34抑制性强,配伍性好,钻进液流变性易调,钻进过程中井壁稳定,井眼规则,井下正常,满足了钻井施工的要求,取得了较好的经济效益。Shale inhibitor AC-34 is an aluminum complex compound prepared from starch hydrolysis and polymerization. Tests indicate that AC-34 possesses the advantages of strong inhibition and good compatibility. Drilling fluid formulated with it are highly inhibitive, rheology adjustable, cost effective and environmental acceptable. Field using proved it is beneficial for safe and fast drilling.

关 键 词：新型抑制剂AC-34 研究 应用 石油钻井 水基钻井液 生物降解 井眼稳定 

分 类 号：TE254.4[石油与天然气工程—油气井工程]