Abstract: A high pressure seal adapter for a conductor housing of a wellhead, and a method of completing a well having a conductor housing attached thereto, are disclosed. The high pressure seal adapter has a unitary body including a first circular bore extending through the unitary body. The first circular bore has a circular perimeter extending beyond a centerline of the unitary body. The unitary body further includes a second circular bore adjacent the first circular bore and extending through the unitary body. The seal adapter is configured to be installed in the conductor housing. The method includes providing such a high pressure seal adapter and installing the high pressure seal adapter in the conductor housing.

Abstract: A high pressure seal adapter for a conductor housing of a wellhead, the high pressure seal adapter having a unitary body comprising: a first circular bore extending through said unitary body; and a second circular bore adjacent said first circular bore and extending through said unitary body; wherein said seal adapter is capable of being installed in said conductor housing. The high pressure seal adapter may further include at least one seal extending around a perimeter of said unitary body, said at least one seal contacting said conductor housing. The adapter may receive a high pressure riser in said first circular bore when said seal adapter is installed in said conductor housing, said high pressure riser having a lower surface that contacts said flange and at least one seal extending around an outside perimeter of said riser.