鲁克沁油田钻井液设计与应用

发布时间：2018-03-14 18:04

本文选题：鲁克沁油田　切入点：两性离子聚合物　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：钻井液工艺技术是油气钻井工程的重要组成部分,它在确保安全、优质、快速钻井中起着关键性的作用。在实验室对钻井液的抑制性做了线性膨胀率和岩屑回收率实验,抗盐性上将两性离子聚磺钻井液分别加入4%氯化钠,1%硫酸钙测量其抗盐污染性能,所研制的两性离子聚磺钻井液的润滑性也较好,并对常规密度钻井液的失水、流变等性能也都进行了室内评价。一开为了保持较高的粘度和切力,保证大井眼携砂,同时高粘度还能在一定程度上起到防漏作用,采用普通膨润土浆;二开为了钻井液具有较强的抑制性,控制好钻井液的流变性,保证钻井液携岩能力和防止过度冲刷井壁,控制好失水造壁性,防止防塌,采用抗盐两性离子聚合物磺化钻井液。并把研究完成的该钻井液体系现场应用在吐哈鲁克沁油田直井、定向井和水平井之中。在现场应用中通过适时调整钻井液的性能并取得了良好的效果,保证了钻井工程的顺利施工,并节省了钻井周期。室内研究和现场试验证明,该体系具有优良的流变性,抑制性强、携砂能力强、润滑防塌能力良好、性能比较稳定、流变参数合理,油层保护效果好;现场转化使用方便,可以满足鲁克沁区块安全钻井和保护油气层等需要。
[Abstract]:Drilling fluid technology is an important part of oil and gas drilling engineering, which plays a key role in ensuring safety, high quality and fast drilling. The salt resistance of amphoteric polysulfonate drilling fluid was measured by adding 4% sodium chloride 1% calcium sulfate to measure its salt pollution resistance. The developed amphoteric polysulfonated drilling fluid has good lubricity and loss of water for conventional density drilling fluid. In order to keep high viscosity and shear force, high viscosity and sand carrying in large borehole can also be used to prevent leakage to a certain extent, ordinary bentonite slurry is used. Second, in order to control the rheology of drilling fluid, ensure the rock carrying ability of drilling fluid, prevent excessive erosion of well wall, control water loss wall-building property and prevent sloughing, The salt resistant amphoteric polymer sulfonated drilling fluid was used in the field application of this drilling fluid system to the straight well of Tuha Lukeqin Oilfield. In the field application of directional well and horizontal well, the performance of drilling fluid is adjusted in time and good effect is obtained, which ensures the smooth construction of drilling engineering and saves the drilling cycle. The system has excellent rheology, strong inhibition, strong sand carrying ability, good lubricating and sloughing ability, stable performance, reasonable rheological parameters, good reservoir protection effect, convenient field conversion and use. It can meet the needs of safe drilling and oil and gas reservoir protection in Lukeqin block.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE254

【共引文献】