API Casing Head Deep Well Oil Drilling Equipment Wellhead Down Hole Tools

Oil Gas Production Christmas Trees

1. Casing Head - Bottom Slip Connection

Key Features:
(1) Connects surface casing using WD slip.
(2) Incorporates a BT secondary seal structure.
(3) Eliminates the need for precise length calculations of the casing string.
(4) Not affected by surrounding environmental factors or climate conditions.
(5) Installation is easy, fast, and reliable.

This casing head design is suitable for various sizes of casing, such as 30", 20", 13-3/8", 12-1/4", 9-5/8", 7", and 5-1/2". It can accommodate different types of casing threads, including CSG, LCSG, BCSG, TM, for the connection between the casing head and surface casing.

2. Casing Head - Bottom Thread Connection

Features:
(1) The bottom of the casing head connects to surface casing using various types of threads, such as CSG, LCSG, BCSG, TM, etc.
(2) Installation is convenient, rapid, and operationally safe and reliable.

3. Casing Head - Bottom Welded Connection

Key Features:
(1) The bottom of the casing head connects to the surface casing through welding.
(2) Includes a pressure test hole in the welding annular space to assess the effectiveness of the welding.