Designed to reduce installation time and enhance safety, they use trims and proprietary sealing technologies for expected well conditions. Note that a tree and wellhead are separate pieces of equipment not to be mistaken as the same piece. Wellhead and christmas tree wellhead and christmas tree is the main equipment for oil production, water injection and downhole operation. Wellhead and christmas tree equipment ansiapi specification 6a twentieth edition, october 2010 effective date. Consist of casing head,tubing head, christmas tree. Many times, the words christmas tree and wellhead are used interchangeably. The difference between a wellhead and christmas tree. Wellhead and christmas tree is used for well drilling and oil or gas production, water injection and downhole operation. Here we propose you the information about our company and its products.
This specification identifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, and purchasing of wellhead and tree equipment for. Wellhead and christmas tree composed by three parts, including casing head, tubing head, oil gas tree, used to connect casing string, tubing string and sealing layers between the casing and tubing of the annular space between, so to control the wellhead pressure and wellhead flow, it also could be used for acid fracturing, water injection, testing and other. Producing surface wells that require pumps pump jacks, nodding donkeys, etc. The primary purpose of a wellhead is to provide the suspension point and pressure seals for the casing strings that run from the bottom of the hole sections to the surface pressure. Feb 20, 2016 animations of how xmas tree is being installed offshore. Specification for wellhead and christmas tree equipment name of standards organization. This edition of spec 6av1 is the first edition and was approved by letter ballot. Christmas tree offering stack or block type christmas tree with pressure ratings up to. Mar 06, 2015 many times, the words christmas tree and wellhead are used interchangeably.
Spec 6a specification for wellhead and christmas tree equipment. By order of the executive director office of the federal register washington, d. In oil and natural gas extraction, a christmas tree, or tree, is an assembly of valves, spools and fittings used for not only extraction, but also for water injection or disposal, gas injection and other operations. Wellhead xmas tree free download as powerpoint presentation. Conventional wellhead, multi bowl wellhead, integral wellhead. Purpose this international standard specifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, purchasing, repair and remanufacture of wellhead and christmas tree equipment for use in the petroleum and natural gas industries. Wellhead and christmas tree components, types, functions and more. Wellhead equipment made in the plant can be used for oil and gas production, water or vappr injection and so on. The surface termination of a wellbore that incorporates facilities for installing casing hangers during the well construction phase. Wellhead and christmas tree is the main equipment for oil production, water injection and downhole operation. In general well heads are five nominal ratings of wellheads. Christmas tree fittings or wellhead connections, flow lines and treating. Apr 10, 2019 wellhead and christmas tree wellhead and christmas tree is the main equipment for oil production, water injection and downhole operation.
Christmas tree offering stack or block type christmas tree with pressure ratings up to 10,000 psi bottom connections and bottom sealing type are customized to suit the application valves actuation is offered in pneumatic or hydraulic according to requirements available for single or dual completions. The surface pressure control is provided by a christmas tree, which is installed on top of the wellhead, with isolation valves and choke equipment to control the flow of well fluids during production. American petroleum institute legally binding document. Oil and gas drilling installing xmas tree animation. Services for maintenance of drilling equipment, machining and logistics for. They are used in conjunction with ring type seal gaskets. Wellhead inspection and maintenance substrata oil and gas. Conventional wellhead, multi bowl wellhead, integral. Wellhead and christmas tree components, types, functions and more free download as powerpoint presentation. Wellhead and christmas tree equipment supplier wom group. It was formulated to provide for the availability of safe, dimensionally and functionally interchangeable wellhead and christmas tree equipment.
Provides a means for attachment to the surface casing string. The wellhead also incorporates a means of hanging the production tubing and installing the christmas tree and surface flowcontrol facilities. The specification includes detailed requirements for manufacturing tubular suspension equipment, valves, and fittings used at oil and gas well locations to contain and. Wellhead and christmas tree frac wellhead wellhead. Specification for wellhead and christmas tree equipment see other formats. Aug 31, 2017 for more information on wellhead and christmas tree, refer to the following article. Supplement 2 to specification for subsea wellhead and christmas tree equipment this supplement covers changes to api specification 17d first edition, october 30, 1992 adopted by letter ballot as well as editorial changes and changes from supplement 1. The product includes conventional oil production wellhead, kys series wellhead and christmas. American petroleum institute purchasing guidelines api monogram equipment purchase api spec specification for wellhead and christmas tree equipment.
Cameron wellhead systems range from conventional to applicationspecific systems for geothermal wells, jackup rigs, unconventional plays, and more. Spec 6d specification for pipeline valves gate, plug, bali, and check valves. Wellhead and christmas tree components, types, functions and more free. Pdf american petroleum institute purchasing guidelines api. This presentation is a course a bout wellheads which includes the basic components of the well head and the advanced techniques. Specification for wellhead and christmas tree equipment ansiapi specification 6a twentieth edition, october 2010 effective date. For more information on wellhead and christmas tree, refer to the following article. Also, the plant manufactures wellhead and christmas tree equipment in accordance with api spec 1 specification for oil, petrochemical and natural gas industry. It comes in the types of normal oil production wellhead, thermal recovery wellhead, offshore wellhead, low and high pressure antisulfide wellhead. This specification identifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, and purchasing of wellhead and tree equipment for use in the petroleum and natural gas industries. It supports the remaining parts of the wellhead and completion equipment.
Pressure ranges from 2,000 to 20,000 psi wp, which are available from 116 to 9 diame. A wellhead must be present in order to utilize a christmas tree and is used without a christmas tree during drilling operations. Wellheads and christmas trees are different pieces of equipment figure 1. Api other standards under the jurisdiction of this committee include. Fmc technologies, subsea engineering, subsea wellhead, fmc technology, fmc company, fmc houston duration. Wellhead and christmas tree components, types, functions and. Api 6a wellhead assembly and christmas tree for oil well. Helping students who care about petroleum industry to increase their. Support or transfer the weight of drilling and workover equipment. The christmas tree is installed on top of the wellhead. Pdf my reading on specifications for wellhead and christmas. The wellhead is the component at the surface of a well that provides the structural and pressurecontaining interface for the drilling and production equipment.
Specification for wellhead and christmas tree equipment. The specification includes detailed requirements for the manufacture of tubular suspension equipment, valves, and fittings used. Specification for subsea wellhead and christmas tree equipment. A wellhead is used without a christmas tree during drilling operations, and also for riser tieback situations that later would have a tree installed at riser top. It is installed on the casing head to seal the annular space read. It is therefore essential that plans are put in place for routine wellhead installation maintenance operations such that problems can be identified from the onset and remedied quickly.
Oil and gas drilling installing xmas tree animation manison media. The maximum operation pressure of the wellhead and christmas tree is 105. The subsea tree is basically the connection between the wellhead and the. In equipment list headed by equipment which is beyond the scope. Oil and gas drilling installing xmas tree animation youtube. Woms apicertified wellhead and christmas tree equipment conforms to api guidelines and are thoroughly inspected by both first and third party inspectors before being delivered to the customer. Jereh is a professional manufacturer of conventional wellhead, multi bowl wellhead, integral wellhead, dual tubing wellhead, esp wellhead, frac tree, christmas tree. Mechanical assemblies are susceptible to corrosion, wear and tear, and other unforeseen damages. Describes requirements and recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, purchasing, repair and remanufacture of wellhead and christmas tree equipment for use in the petroleum and natural gas industries. It was formulated to provide safe, dimensionally and functionally interchangeable wellhead and tree equipment. The casing head in a conventional wellhead system is the lowest part of the wellhead assembly and is almost always connected to the surface casing string. Api specx17d 92 m 0732290 055b237 461 m supplement 2 to specification for subsea wellhead and christmas tree equipment this supplement covers changes to api specification 17d first edition, october 30, 1992 adopted by letter ballot as well as editorial changes and changes from supplement 1.
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