Drilling Engineering Design And Practice Of Jinping 2 Plume-like Horizontal Well

There are many great advances for Plume-like Horizontal Well,such as high output from single-well, high recovery and high economic benefit and so on. It was applied on a wide range in the USA, and with good results as examples, it was tested in the high coal rank reservoirs of our country. However, due to the different geology structure with that of America,and have not mastered the key technology of the Plume-like Horizontal Well fully,drilling practice is not much enough,so it is need to develop the Plume-like Horizontal Well technology Urgently.By researching on the theory of Plume-like Horizontal Well's design,our paper showed the analysis on the design of Jinping 2 well in details, including the structure of well, the segment of bore hole, the technology of needling, the assembling of drilling tools , the drilling fluid, the control of well, the cement and completion jobs. In combination of the analysis of Jinping 2 well actural drilling, this paper combining the later period drilling condition of Jinping 2 well group, well structure and well path, BHA, drilling fluid, drilling parameters and so on are evaluated according to the completion during the drilling of vertical well section, building up section and horizontal section. And the causes in the Jinping well 2 accident and suggestions of accident treatments are analyzed.gave us some conclusions on the experiences and lessons of designs and construction of Plume-like Horizontal Well on the present stage, and proposed us some targeted advice on the designing of Plume-like Horizontal Well.So it can be used as reference for the future designs and applications of Plume-like Horizontal Well engineering.