钻井液与含水合物地层热流交换模拟实验系统设计  

Design of Experimental System for Heat and Flow Exchange Between Drilling Fluid and Hydrate-bearing Formation

作　　者：张杰城 谷同凯 朱霄霄[1] 胡志强 Zhang Jiecheng;Gu Tongkai;Zhu Xiaoxiao;Hu Zhiqiang(China University of Petroleum(Beijing),Beijing,102249;Key Laboratory of Oil and Gas Safety and Emergency Technology,Ministry of Emergency Management,Beijing,102249;SINOPEC Research Institute of Petroleum Engineering Co.,Ltd.,Beijing,102206)

机构地区：[1]中国石油大学(北京),北京102249 [2]油气生产安全与应急技术应急管理部重点实验室,北京102249 [3]中石化石油工程技术研究院有限公司,北京102206

出　　处：《当代化工研究》2024年第5期185-187,共3页Modern Chemical Research

基　　金：国家重点研发计划项目(项目编号:2022YFC2806401);国家自然科学基金项目(项目编号:52301354);中国石油大学(北京)科研基金资助(项目编号:2462023SZBH004);中国博士后科学基金资助(项目编号:2023M743875)。

摘　　要：在冻土和海洋的钻井过程中,钻井液的热流作用会扰动地层中原本稳定存在的水合物,导致水合物分解,造成地层力学性质劣化,进而引发井壁坍塌失稳。为保障钻井安全,需要针对环空内钻井液与含水合物地层之间的直接相互作用开展室内模拟研究,进而摸清水合物分解规律,揭示钻井液与含水合物地层的热流交换机理。然而,已有研究中尚未见到仅考虑钻井液与含水合物地层热流交换作用的模拟实验系统。为此,本文设计了一种仅模拟上述作用的实验系统,并使用ANSYS-workbench进行了强度校核,同时提供了对应的实验方法,为揭示钻井液与含水合物地层的热流交换机理提供实验基础。During the drilling process in permafrost and marine environments,the heat and flow effects of drilling fluid can disturb the originally stable conditions of hydrates in the formation,leading to hydrate decomposition,deterioration of the mechanical properties of the formation,and subsequently causing wellbore collapse and instability.To ensure drilling safety,it is necessary to conduct experimental studies on the interaction between drilling fluid in the annulus and hydrate-bearing formations.This aims to understand the decomposition patterns of hydrates and reveal the mechanisms of heat and flow exchange between drilling fluid and hydrate-bearing formations.However,existing research has not yet presented an experimental system that specifically considers the heat and flow exchange between drilling fluid and hydrate-bearing formations.Therefore,this paper proposes the design of an experimental system that simulates the above interactions and conducts strength verification using ANSYS-workbench.Additionally,corresponding experimental methods are provided to reveal the mechanisms of heat and flow exchange between drilling fluid and hydratebearing formations.

关 键 词：含水合物层钻井 实验系统设计 热流交换 钻井安全 

分 类 号：TE52[石油与天然气工程—油气田开发工程]