The countermeasures to it are physical treatment ( short - range running and increasing output volume of debris ) and chemical treatment ( adding inhibitor of fa367 and gps ) 对策主要有物理方法(如短程起下钻、加大排量等) 、化学方法(加入强抑制剂fa367 、加入gps ，提高泥饼质量)等。
In the meantime , under the guideline of " benefit first " , it is desired that there is a multiple drill bit " with multifunction more than drilling " in order to shorten the journey and improve the effect and efficiency 同时，在尽量提高效益的思想指导下，期望出现“一钻多能”的复合钻头，以减少起下钻的行程，大幅度提高钻井效益和效率。
Abstract : tight trips often occur for hole undergauge during drilling in east sichuan oilfield . the paper analysis the causes of hole undergauge , proposes preventive and treatment measures which are to optimize design from geologic structure features , to use suitable fluid column pressure , to select different drilling fluid types , to adopt advanced drilling technology and perfect field technical management . therefore , good economic benefit will be obtained 文摘:川东构造在钻探作业中因井眼缩径造成起下钻的阻卡时有发生，文中对造成井眼缩小的原因进行分析并划分为五类因素，提出应在地质构造特征方面优化设计，采用合适的液柱压力，选择不同的钻井液类型，使用先进的钻井工艺和完善现场技术管理等措施进行预防和处理，将取得重大的经济效益。
