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Christmas Tree

Christmas Tree news and technical articles from Oil & Gas Journal. Search Christmas Tree latest and archived news and articles

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  1. Subsea Drilling
  2. Pig Trap
  3. Floating Production Unit
  4. Pigging
  5. Natural Gas Pipeline
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  1. Petroleum Industry Careers Start with Exploration

    Magazine Articles

    Mon, 16 Jan 2006

    … cemented in place. The casing’s upper end is fastened to a system of pipes and valves called a wellhead, or “ Christmas Tree ,” through which natural pressure forces the oil or gas into separation and storage tanks. If natural pressure …

  2. MARKET WATCH Natural gas, oil prices fall

    Online Articles

    Fri, 22 May 2009

    … market from dismal summer gas prices. Be it delayed completions, choking back wells, or completely unplugging the Christmas tree , we still believe there will have to be substantial shut-ins this summer," Raymond James said. Pritchard Capital …

  3. ESTIMATING DRILLING COSTS-1: Joint association survey, mechanical risk index methods common in GOM

    Magazine Articles

    Mon, 6 Aug 2007

    … the cost through completion and installation of the Christmas tree . Completion costs will typically include the cost ..... metric. A subsea well is one in which the wellhead, Christmas tree , and production-control equipment are located on …

  4. GULF UPDATE?1: Gulf of Mexico P&A costs begin to recover from 2005 hurricanes

    Magazine Articles

    Mon, 3 Dec 2007

    … MMS provides specific regulations for each operation. • Shut in. A shut-in well is a flowing well that has its christmas tree , master valves, wing valves, and subsea safety value closed. A well is usually shut in because of temporary technical …

  5. Russians drilling giant Shtokman field with Norsk Hydro

    Magazine Articles

    Mon, 4 Sep 2006

    … includes choke and kill manifold gate valves with hydraulically operated valves on the choke manifold. The BOP and Christmas tree can be installed in a single run using the skidding system on the cellar deck. Odfjell says the rig is “especially …

  6. Crude tops $62/bbl

    Online Articles

    Mon, 25 May 2009

    … market from dismal summer gas prices. Be it delayed completions, choking back wells, or completely unplugging the Christmas tree , we still believe there will have to be substantial shut-ins this summer." The drop in gas price appeared "completely …

  7. Extended-reach drilling extends life of CNOOC field

    Magazine Articles

    Mon, 1 Aug 2005

    … section, second buildup section, horizontal section (production hole), implemented as follows: 1. Pull the subsea christmas tree and retrieve the existing production string. 2. Cut and retrieve the 9 5 ⁄ 8 -in. OD casing and the 13 3 …

  8. Shell’s experience with a Norwegian semisubmersible

    Magazine Articles

    Mon, 11 Aug 2008

    … and within budget with difficult rig limitations. For instance, the work required custom-built skids to move the christmas tree and flow base on the rig. SWIT The Ocean Vanguard reequipped from drilling to seabed-based water injection and …

  9. INHIBITORS, CLADDED TREES PROTECT SOUR GAS WELLS IN ABU DHABI

    Magazine Articles

    Mon, 13 Jun 1994

    … the Thamama C gas wells. The christmas tree of Well No. 18 has been repaired ..... tie down screws. The corroded christmas tree on Well No. 5 was replaced after ..... well was killed and the faulty christmas tree replaced. Parts of the corroded …

  10. Canyon Express touts industry firsts, shared infrastructure for deepwater gulf development

    Magazine Articles

    Mon, 19 May 2003

    … include the christmas trees, the christmas tree choke valve, and the flowline ..... by the ultra-deepwater. Each christmas tree is a 4 in., 10,000-psi assembly ..... or recover the equipment. The christmas tree 's choke valve is a hydraulically …

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