| 摘要 |
Provided is a plug for well drilling comprising a mandrel and a member attached to the outer circumferential face that intersects the mandrel in the axial direction, wherein at least one of the mandrel or the member is formed from a degradable material, preferably polyglycolic acid, and the radius of curvature for a bent portion is 0.5-50 mm. Also provided is a well digging method characterized in that all or a portion of the plug for well drilling degrades after the wellbore is sealed using the plug for well drilling. |
