Wellhead Control Panel (WHCP)

by whcpadmin

Wellhead control panel (WHCP) is system package controller in oil & gas exploration onshore/offshore. Each well always equipped with SSV (surface safety valve), common each a well consist three safety valves (SV): down hole safety valve (DHSV), master safety valve (MSV), and wing safety valve (WSV) where both MSV & WSV usually called surface safety valve (SSV). SSV can be driven by hydraulic actuator or pneumatic actuator depends on the pressure rating, then DHSV can be driven by only hydraulic actuator because needed high pressure to open it ( > 400 bar). Below showing picture design WHCP in another offshore platform

WHCP systems usually consist of hydraulic reservoir, strainer, hydraulic pumps, accumulator, wellhead control module, and hydraulic line which are supply and return to wellhead control module. Any other parts except wellhead control module are classified into basic cabinet. Each control module is built up dedicated for one well only, therefore if there are 6 well in a wellhead platform, then there will be 1 basic cabinet and 6 wellhead control module needed.

Hydraulic reservoir contains hydraulic fluid in sufficient quantity to operate each wellhead and few equipment instruments in field flow-line. The size of reservoir is determine through an estimation of hydraulic fluid needed to operate each actuator, possible leakage, distance from the well, and an additional safety factor. Usually the hydraulic reservoir is an atmospheric tank with a flame arrestor venting and filler access.

Hydraulic pump provided to build up a hydraulic header (medium and high pressure) the WHCP utilize. Common the each service pressure dedicated one or two item pump hydraulic as main & backup pump for high performance system. Accumulator provided to stored energy hydraulic if function pump has stop. Hydraulic fluid accumulated at the hydraulic header (high pressure and medium pressure) then it’s ready to supply each wellhead control module. Usually the line from hydraulic header to wellhead control module is called a hydraulic supply lines. Wellhead control module, the sequence and logic to operate the DHSV and SSV is built-up. ESD main signal also goes to this module, it needs to open the DHSV and SSV, it supplies the high pressure or medium pressure hydraulic fluid to the SCSSV and SSV. In case there is a need to close it down, the hydraulic fluid supply will close and the hydraulic fluid will goes to a hydraulic return line through a three way valves selector. This hydraulic return line will goes to the hydraulic reservoir again.

The last explanation we can conclude that the wellhead control panel (WHCP) is a hydraulic system that utilizes a hydraulic power pack and a wellhead control module to perform its task. Below showing example description overall design schematic.

Hydraulic Accumulator Schematic

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6 Responses to Wellhead Control Panel (WHCP)

  1. kevin tsai says:

    our company need 9 set wellhead control panel,+86-13770173528

  2. SURI BABU says:

    I am working in Oil & Gas compny
    I am maintence Dept -Instrumentation
    WE have well control panels 8 nos
    some logics modification doing
    Ihave 18 years experance
    I can digne logics & modification


  3. enoch ebere says:

    needs materials on whcp

  4. Oluchi says:

    Thank you for this piece, it was really helpful. I am on a task to design a WHCP and will appreciate any material – software, pdf, video or any other material that might be helpful

  5. Subject : Wellhead Control Panel

    Dear Sir,

    Let us take this opportunity to introduce ourselves as the expert system integration for offshore oil & gas industry. Our experiences are provided an application software solution such as an integration control safety system (ICSS) for oil and gas platform in Thailand. We have a very strong reference base in providing system integration solution for offshore platform such as SCADA system, Data Base and web base monitoring system for most of major oil and gas companies in Thailand.

    We are knew a project in Thailand for Arthit Minimum Facility Platform (AMFP) Project by PTT Exploration and Production Company Limited (PTTEP) for one of our good relation client.

    Currently, we are looking for a good reputation manufacturer partner for the wellhead control panel (WHCP) to join with us. As we found that your company is one of the leaders in this field, so we would like to express our intention to cooperate with you in this project and may distribute your company in the future. Please advise us whether you can support us for this project so we can send you the specification.

    Should you need any information, please feel free to contact us. We hope to hear from you soon.

    Best Regards,

    Putchapong Jantaket

    BUGM (High Value Engineering Product)

    12 th Anniversary
    Office. Tel 662-9610826-29 Fax 662-961083
    50/288 M.9 SOI C6, Bondstreet RD., Muangthongthanee, Bangpood, Pakkred, Nonthaburi, Thailand 11120

    Insight Automation Company Limited: http://www.insightautomation.co.th

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