On the basis of data obtained from field tests, the optimization and determination of parameters of mechanical cutting in optimized drilling are presented in this paper both in theory and its application
Experimental results in three wells show that optimized drilling and completion techniques can improve penetration rate ,shorten well completion period , increase oil well production and decrease drilling and completion costs.
China National Offshore Oil Corporation (CNOOC) made an important technical breakthrough in the development well drilling in the Bohai Gulf by utilizing the value engineering principles and adopting a complete set of optimized drilling technique and Project Management by Objectives.
Drilling management mode and supervision method were put forward with regard to the drilling properties in gas exploration and development in Western Sichuan Area, and optimum drilling design and operation in the area are discussed.
Since fast gas chromatogram was put into on-site practice,it had enlarged the field of mud logging services,providing further safeguard for identifying hydrocarbon reservoir promptly,guiding safety and optimum drilling under the fast drilling conditions.
Based on the practical problems, the paper discusses many new technologies and advanced techniques used in Banyazu area: such as optimizing drilling design and equipment, optimizing properties of drilling fluid and drilling model and stimulation parameter.
On the basis of analysis of the major factors affecting the drilling efficiency, this paper presents the main countermeasures, including acquiring the drilling geological variables accurately, optimizing drilling program, and applying novel drilling techniques, etc.
According to the geologic characteristic of Zhongyuan oilfield, combined with the development situation of horizontal well technology in home and abroad, this paper presents the technical measures about how to enhance displacing efficiency and cementing quality from optimizing drilling program design, bore hole cleaning, casing centralization and positioning, fluid flow pattern, flushing spacer and cement slurry properties Through four wells’ application, the cementing quality has achieved better results, and provides better reference substance for the future horizontal cementing jobs