【作者】 胡茂焱；

【导师】 夏柏如；

【作者基本信息】 中国地质大学（北京） ， 地质工程， 2005， 博士

【摘要】 随着油气和固体矿产勘探开发的飞速发展,现代钻井技术对钻井液提出了更新更高的要求,各种新型钻井液技术不断地被开发出来,在讲求效率的今天,钻井液的管理技术也得到了更多的关注。 钻井液管理是近年来提出的一个新概念。它包括钻井液设计、当量循环密度控制、井眼清洁、流态与井下模拟等,通过优选、优配、简化钻井液体系,降低成本,提高钻井效率。实现钻井液管理需要开发相应的钻井液设计软件。钻井液设计是一个跨学科的、复杂的系统工程,涉及到许多学科的理论知识,同时具有很强的实践性。在很多情况下手工设计不仅耗时费力,往往还会存在许多问题。钻井液设计系统软件的开发不仅解决了上述问题,更重要的是能够更好地实现资源共享,最大限度地运用成功经验,从而实现钻井液设计的计算机化、自动化,甚至智能化。 本文研究了钻井液技术、钻井液设计基本规则、钻井水力学设计原理,总结了大油田的钻井液技术,构建了钻井液和钻井水力学设计思想和方法,为钻井液和钻井水力学设计系统计算化奠定了基础,有效地促进了钻井液技术与现代高新技术的有机结合。本文研究成果主要体现在: 1. 研究了地质勘探钻探技术特点和钻孔冲洗与护壁堵漏技术,借鉴国内外石油钻井液设计系统的最新研究成果,根据钻井液设计基本原则建立了钻井液设计规则库。 2. 归纳总结了我国地质勘探长期积累的钻井液技术,同时收集整理大油田在钻井液设计方面积累的宝贵经验,建立了钻井液设计范例库。 3. 研究了人工智能技术在工程技术的应用,基于钻井液设计规则库和钻井液设计范例库,建立了基于规则和基于范例相结合的钻井液体系设计系统。 4. 研究了钻井液流变学和水力学的最新研究成果,利用回归分析等数学方法,研究钻井液流变模式的优化设计系统,从而实现了钻井水力参数的优化设计的自动化。 5. 首次建立了集钻井液设计和钻井水力学设计于一体,既可应用于地质勘探又可应用于石油钻井的钻井液设计系统。更多还原

【Abstract】 Drilling fluid management is a new concept presented recently, which includes drilling fluid design and its hydraulic performance design, such as pressure control, volume adjustment, cleaning of borehole and circulating simulation of drilling fluid. The measure of drilling fluid management is to optimize and to simplify the drilling fluid system, through which the aims to improve the drilling fluid efficiency, to reduce the drilling fluid cost are realized. Drilling fluid design is complicated and systemic, for which interdisciplinary theory and knowledge must be integrated; meanwhile the practice and experience are very important. The paper studied the drilling fluid system and the intellectualized design method, according to rule-based and case-based reasoning the drilling fluid system is designed. This paper investigated the latest rheology results of drilling fluid; integrating the modern mathematic technology the hydraulic parameter system is developed. The main achievements can be described as follows: 1. This paper studied the properties of geological exploration and the technologies of drilling fluids, referenced the latest research results of drilling fluid design system worldwide, researched the rules to design drilling fluid, and built the design rule base for drilling fluid design. 2. This paper summed up the technologies applied in the geological exploration and typical formulas used in the oil fields in China, with which the case base for drilling fluid design was built. 3. According to the engineering application of artificial intelligence, combined the above rule base and case base, the drilling fluid design system of rule-based and case-based reasoning was built. 4. This paper presented the latest research result of drilling fluid rheology and hydraulics, using regression analytical method; the drilling fluid hydraulic optimization system was build. 5. This paper built the drilling fluid design system including both drilling fluid system and drilling fluid hydraulics, which considered firstly the geological exploration conditions.更多还原