中石油生产的采油树和井口装置.docx

Part 8 Wellhead and Christmas TreeCPTDC can provide API 6A casing heads, tubing heads and Christmas trees which can meet the requirements of customers for different casing and tubing programs and pressure grades.● Features ●Fix the drilled wellhead, connect wellhead casing string, seal and control the annular of casing, suspend tubing, control wellhead pressure, adjust flow rate, induce oil into outlet pipeline, shut off oil well when necessary, and applicable to acid fracturing, water injection and test services ●Meet the requirements of API 6A ●Consist of casing head, tubing head and Christmas tree ●Applicable to all the casing and tubing programs and connection types ●Safe, reliable and easy to operate and maintain ●Can be equipped with pneumatic (hydraulic) safety valve ●Working pressure: 2, 000 psi¨C20, 000 psi ●Working medium: petroleum, natural gas, mud and gas containing H2S, CO2 ●Material class: AA, BB, CC, DD, EE, FF ●Specification level: PSL 1¨C4 ●Performance level: PRI¨C2 ●Block Christmas Tree Wellhead Assembly1. Casing HeadWith the design of versatile straight-bore, the casing head and casing spool can be equipped with all kinds of slip and mandrel type casing hangers, which have symmetrical lock screws and fixed wear bushing ●Straight-bore design45?shoulder with large load capacity ●Side outlet connectionPipeline thread side outletThreaded flange side outletVR thread ●Secondary seal BT type secondary seal mechanism is designed on the bottom. The casing can be cut on site during tubing installation so as to accommodate the seal height.●Interchangeable casing hangerStandard dimensions Slip casing hanger and mandrel type casing hanger are interchangeable.●Connection types between casing head and surface casing includingwelded bottom connection,threaded bottom connection andslip bottom connectionCasing Head Body● SpecificationsCasingFlange sizeW.P. (psi)A mm (in)B mm (in)C mm (in)7”11”3, 000470 (18.50)162 (6.38)280 (11.02)8-5/8”11”