The first casing and casing is connected to a variety of wellhead equipment components. To support the casing and production casing gravity, sealed floors of the annular space for the installation of BOP. Production tubing head and upper wellhead equipment, and other trees provide bridging connections, and through the casing head Ontology mouth of the two sides, can fill crowded cement, monitoring and injection wells Shen operations such as fluid balance.
My company production casing head is the standard structure, with its matching shell casing installation of the hoisting of my company, and in accordance with procedures and wellhead casing changes in the conditions of the different size specifications casing hanger. The upper part of this body are API 6B flange or API 6BX flange.
Casing is the first of the options
The lower part of the first casing can be connected API standard round thread connecting casing mother or API standard deduction partial deduction trapezoidal casing thread connecting home, it may also be a link inserted welding-type casing, it could be a slip-type connectivity. Welding can provide group-bearing chassis. The export side of a pipeline to plant silk thread-and-two. I planted silk-side processing is R1 1 / 2 "for the mother-valve thread.
