摘要
由于缺乏系统介绍煤岩天然气储层钻开流体的文献,许多煤层气开发者选择钻开流体时往往遗漏合适的流体,导致研究和应用时选择的结果针对性不强,效果不理想。以煤岩储层钻开流体的研究历程为主线,以现场需求为依据,在国际范围内的100多篇文献中筛选出直接相关文献49篇,按报道内容分为研究型和应用型两类钻开流体。只有室内研究没有现场应用的文献31篇,有现场应用案例的文献18篇。再将煤岩钻开流体研究型、应用型的文献按照报道的内容进一步分为控制井下难题事故的钻开流体、控制储层伤害的钻开流体以及控制井下难题事故并能控制储层伤害的钻开流体等三种,文献分别有17篇、15篇和17篇。三种流体研究型文献分别有12篇、10篇和9篇,应用型文献分别有5篇、5篇和8篇。煤岩储层钻开流体的重点是如何保证安全钻进和控制储层伤害。控制井下难题事故并能控制储层伤害的钻开流体文献数量占34.7%(17/49),应用型文献更是达到8篇,更印证了安全作业和最大化资源开采是选择钻开流体的关键。结果表明,按研究内容分类的研究、应用两大类以及再细分的三种,为煤层气特别是深部煤层气开发提供了理论研究方向和应用体系储备。
Due to lack of systematic literature study on coal rock drill-in fluids for natural gas reservoirs,many coalbed methane producers overlooked suitable drill-in fluids as option,resulting in unsatisfied results in terms of research and application.Based on the research history of drill-in fluids in coal reservoirs and on-site requirements,49 directly related literatures were obtained from over 100 international papers.According to the reported content,there are two types of drill-in fluids,namely research and application.Amongst of them,there are 31 literatures introducing laboratory research exclusive of field application,and 18 literatures with field application cases.According to the reported content,the literatures on coal rock drill-in fluid research and application can be further divided into three subdivisions:17 papers on drill-in fluids controlling tough underground failures,15 on drill-in fluids controlling formation damages,and 17 on drill-in fluids aiming at these two challenges above mentioned.There are 12,10,and 9 research literatures,respectively,on these three types of fluids,as well as 5,5,and 8 applied literatures,respectively.The key to drill-in fluid in coalbed methane formations is to ensure safe drilling and minimize formation damages.Literatures on drill-in fluids that can control downhole accidents and formation damages accounts for 34.7%(17/49),including 8 applied literatures,which further confirms that safe operations and maximizing resource extraction are the key to drill-in fluids selection.The findings indicate that the two major categories of research and application,as well as the three further subdivisions,classified by research content,provide theoretical research directions and application system reserves for the development of coalbed methane,especially deep coalbed methane.
作者
陈缘博
郑力会
苗海龙
寿乐鹏
王超群
郭秦
CHEN Yuanbo;ZHENG Lihui;MIAO Hailong;SHOU Lepeng;WANG Chaoqun;GUO Qin(College of Petroleum Engineering,China University of Petroleum(Beijing),Beijing 102249,China;Oilfield Chemistry Division,China Oilfield Services Limited,Langfang 065201,Hebei,China)
出处
《石油钻采工艺》
CAS
北大核心
2024年第3期267-279,共13页
Oil Drilling & Production Technology
基金
国家科技重大专项“多气合采钻完井技术和储层保护”(编号:2016ZX05066002)
中海油重大项目“海上储层伤害原生信息数据库及辅助设计系统”(编号:G2317A-0521T057)。
关键词
油气资源
非常规油气
煤层气
工程技术
钻井
钻井流体
井壁稳定
储层伤害
hydrocarbon resources
unconventional oil and gas
coalbed methane
engineering technology
drilling
drill-in fluid
hole stability
formation damage
