No annular space that extends to the ocean floor shall be left open to drilled hole below. If this condition exists, a minimum of 200 feet of the annulus immediately above the shoe shall be plugged with cement.
Cal. Code Regs. Tit. 14, § 1745.4
No annular space that extends to the ocean floor shall be left open to drilled hole below. If this condition exists, a minimum of 200 feet of the annulus immediately above the shoe shall be plugged with cement.
Cal. Code Regs. Tit. 14, § 1745.4