Development status and trend of efficient drilling and completion technologies for shallow oil and gas reservoirs in Bohai Sea
The development of the main shallow oil-bearing layers in the Bohai Sea has entered the middle and late stages.During the efficient development of shallow oil and gas reservoirs,the drilling and completion operations are faced with new issues related to speed acceleration,leakage,anti-collision,and production release of low-quality reservoirs.Through technology breakthroughs and innovation,the key technology series were developed,including speed acceleration technology of deep one-trip drilling with motors,efficient control technology of drilling risks,production release and production increasing technology for reservoirs,and subsea wellhead and subsea Christmas tree system,realizing the third breakthrough in drilling and completion technologies for shallow oil and gas reservoirs.The efficient drilling and completion technologies for shallow oil and gas reservoirs in Bohai Sea were summarized,and the difficulties affecting the stable production of existing oil and gas fields,the high production of newly explored oil and gas fields,and the development of oil and gas fields in restricted areas during drilling and completion of Bohai Sea were analyzed.Moreover,the development trend and research direction of the efficient drilling and completion technologies for shallow oil and gas reservoirs in the Bohai Sea were discussed,providing a reference for sustainable and high-quality development of the Bohai Sea.
Bohai Seashallow reservoirsdrilling and completionleakageanti-collisionefficient development
NETL
NSTL
万方数据
