Abstract
In order to raise the ROP in hard and highly abrasive formation in the third spud vertical section of the HWY Block in Saudi Arabia, the rotary percussion drilling technology test with hydraulic jet impactor was carried out in the third spud section of Well HWY-116. According to the relationship between the performance parameters of hydraulic jet impactor and the drilling resistance parameters of rock, the BHA was optimized with the drilling design of Well HWY-116 combined. The PDC bit matched the hydraulic jet impactor was selected to optimize the rotary percussion drilling parameters. Based on these optimizations, a drilling rate improvement scheme was formed for rotary percussion drilling with a ϕ228.6 mm hydraulic jet impactor suitable for Well HWY-116. The ROP in the third spud section of Well HWY-116 was 9.40 m/h, which was 45.5% higher than that of the adjoining wells. The results demonstrated that the ROP in hard and highly abrasive formation in the HWY Block of Saudi Arabia could be improved by the rotary percussion drilling technology with hydraulic jet impactor.
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