• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An off-shore drilling platform or the like supported by support legs standing on the bottom of the sea is converted to withstand ice pressure occurring in ice filled waters by providing those portions of said drilling platform, which are to be protected against ice pressure, with protective structures below the platform. The drilling platform and/or the protective structures are then, when ice occurs, lowered along the support legs to a level where the protective structures partly extend below the surface of the ambient water.
    公开号:SU1311625A3
    申请号:SU833608873
    申请日:1983-06-14
    公开日:1987-05-15
    发明作者:Вилкман Геран；Хейдеман Торстен
    申请人:Ой Вяртсиля Ав (Финляндия)；
    IPC主号:
    专利说明:

    1.1311625 .2
    The invention relates to drilling rigs, whether ice is bent either up or down, and platforms for exploration drilling can regulate the vertical forces acting on the wells and oil and gas production in the sea platform, with the water area working in ice conditions to balance the tilting conditions. 5 forces acting on the platform
    The purpose of the invention is to increase the effectiveness as a result of the movement of the surrounding protection of a part of the drilling ice platform from the action of ice. The ice deflecting part of the protective FIG. 1 is represented by a cone structure, made in the form of a cone, platform, general view, the direction of the bend of the covered water; in FIG. 2, the same, in the ice, has a vertical size, equal conditions; in FIG. 3, a variant of at least twice the thickness; use of the platform in ice conditions. not the thickest even ice, catching x. subject to destruction,
    . The drilling platform includes a working 5 The inclination of the ice-facing surface of the platform 1, provided with supporting plane columns 2 with respect to the horizontal plane, which are based on are chosen to be 25-26 °, preferably 3 mor. Platform 1 has a drill of 35-55,
    4, residential and service rooms. To the narrower end of the conical 5, and other necessary structures and 20 parts of the protective structure, equipment (not shown) can be attached. Burov’s pipe-like part 4 has a drill string 6c 11, the axial size of which is preferred at its lower end, dp makes up at least wells in the soil, forming the bottom one quarter of the axial size of the cone skir.
    When implementing a protective structure. When a drilling platform works in a drill string and bearing cocks in the open sea, the distance h between the dots with a different area of the transverse lower surface of platform 1 and the PS-section in different directions is so large that the shield structures even very high waves cannot,. company round the vertical axis to strike platform 1, this is gjj 3 and the need to rotate the general principle for self-lifting against the action of ice pressure on the molds. the most suitable cross section
    In ice conditions platform 1, g
    onycKtuoT on support pillars 2 nasto- Protective constructions reduce only the protective constructions 7, the horizontal pressure of the ice, which are attached to the platform 1 and located on the supporting columns. For adjusting the position of the protective structures around the drill string 6 and around the support pillars 2, the vertical position was expediently used at the level of the water surface, the mechanism by which the ice 8 adjusting the vertical position - on the surface of the water, hit it in the concrete platform. The protective structures of the protective structures of the 7 supporting columns or some of the supports, and as a result of bending, 5 columns and the drill string can be tapered, the surfaces of each protection can also be combined into one assembly unit. Vertical movement is sufficient. Immersion of the protective structures on regardless of the platform, depth at least 5 m below. Position of the protective structures of the water surface level.50 supporting columns vertically may
    The protective structures 7 must be chosen to balance the conical upper part 9, to bend the ice created by the ice ice load upwards, and to the conical lower tilting moment by choosing part 10, to bend the ice downwards. ice bending directions (up or
    Burova shgatforma works following- 5 down) at different support columns, which ensures the creation of an equilibrium by performing protective constituting vertical reaction forces, operating in such a way that they are due to their vertical position. - self-lifting platform can be
    313
     even rather severe ice conditions are used. In the event of an emergency, when there is a danger of the platform breaking due to strong ice pressure, platform 1 can be lowered in order to crush the ice that has accumulated around the support pillars with its mass. is raised and thus removed from direct contact with ice.
    权利要求:
    Claims (3)
    [1]
    1. Drilling platform for work in ice conditions, including a working platform equipped with supporting columns, each of which is provided with protective structures against ice, installed under the platform at different heights along the supporting columns, while protective structures
    54
    have guide surfaces that are inclined relative to the horizontal plane at an acute angle, deflecting ice downwards or upwards selectively, characterized in that, in order to increase the effectiveness of protecting part of the drilling platform from ice, the protective structures are statically mounted.
    [2]
    2. Burov platform under item 1, on t-; in particular, the protective structure is provided with a tubular section attached to the narrowest end of the narrowing section, the depth of which is not less than a fourth of the axial length of the narrowing section.
    [3]
    3. The Burov Platform according to claim 1, that is, that the vertical movement of the protective structures is carried out by means of the lifting columns of the supporting columns.
     r-g
    fcg
    Compiled by R. Beschastnova Editor I. Rybchenko Tehred L Olikik Proofreader A. Ilyin
    Order 1907/58 Circulation 607. Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries MZOZZ, Moscow. 5 Z-ZZ, Raushsk nab. 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    类似技术:
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    NL8200488A|1982-09-16|SLIDING TOWER WITH TENSIONED LEGS.
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    US3362170A|1968-01-09|Triangular based offshore platform
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    US4023371A|1977-05-17|Riser for an offshore platform
    US4968181A|1990-11-06|Shock absorber and method for offshore jack-up rigs
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    同族专利:
    公开号 | 公开日
    SE452999B|1988-01-04|
    SE8303346D0|1983-06-13|
    DE3321668A1|1983-12-15|
    FR2528465A1|1983-12-16|
    FI822158A0|1982-06-15|
    FI822158L|1983-12-16|
    NO832156L|1983-12-16|
    US4602895A|1986-07-29|
    SE8303346L|1983-12-16|
    CA1204602A|1986-05-20|
    JPS594716A|1984-01-11|
    FR2528465B1|1987-07-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN103154379A|2010-10-21|2013-06-12|科诺科菲利浦公司|Ice worthy jack-up drilling unit with telescoping riser|
    RU2555976C2|2010-10-21|2015-07-10|Конокофиллипс Компани|Jack-up drilling rig with two derricks for operation under ice conditions|
    RU2571782C2|2010-10-21|2015-12-20|Конокофиллипс Компани|Self-lifting marine drilling ice-breaking-class platform with icing ruled out by gas mixing|
    RU2573301C2|2010-10-21|2016-01-20|Конокофиллипс Компани|Self-elevating drilling offshore unit of ice class with single conic pile-supported leg|
    RU2583467C2|2010-10-21|2016-05-10|Конокофиллипс Компани|Ice worthy jack-up drilling unit with pre-loading tension system|
    RU2620816C1|2016-03-29|2017-05-30|Федеральное государственное автономное образовательное учреждение высшего образования "Дальневосточный федеральный университет" |Self-lifting drilling ice-resistant plant|US3759046A|1972-03-23|1973-09-18|Global Marine Inc|Movement of marine structures in saline ice|
    US3807179A|1972-10-02|1974-04-30|Gulf Oil Corp|Deicing systems|
    DE2537918C3|1975-08-26|1978-03-23|Heinrich Dr.-Ing.E.H. 5300 Bonn-Bad Godesberg Waas|Device for repelling ice from columns, pillars or the like standing vertically in the water. of fixed or floating structures in ice-prone sea areas|
    JPS5364901A|1976-11-24|1978-06-09|Mitsui Shipbuilding Eng|Ice crusher for structure used in icy waters|
    US4077225A|1977-02-28|1978-03-07|Sun Oil Company Limited|Apparatus for ice disaggregation|
    US4102144A|1977-05-31|1978-07-25|Global Marine, Inc.|Method and apparatus for protecting offshore structures against forces from moving ice sheets|
    US4103504A|1977-10-07|1978-08-01|Ehrlich Norman A|Offshore platform for ice-covered waters|US6371695B1|1998-11-06|2002-04-16|Exxonmobil Upstream Research Company|Offshore caisson having upper and lower sections separated by a structural diaphragm and method of installing the same|
    CN103168137B|2010-10-21|2016-06-08|科诺科菲利浦公司|Iceproof jack-up rigs unit|
    CA2810902A1|2010-10-21|2012-04-26|Conocophillips Company|Ice worthy jack-up drilling unit secured to the seafloor|
    WO2012054840A1|2010-10-21|2012-04-26|Conocophillips Company|Reinforced legs for ice worthy jack-up drilling unit|
    SG189102A1|2010-10-21|2013-05-31|Conocophillips Co|Ice worthy jack-up drilling unit with gas agitation and leg ice shields|
    CA2811943A1|2010-10-21|2012-04-26|Conocophillips Company|Ice worthy jack-up drilling unit with moon pool for protected drilling in ice|
    US8870497B2|2010-10-21|2014-10-28|Conocophillips Company|Ice worthy jack-up drilling unit with conical piled monopod|
    RU2013123039A|2010-10-21|2014-11-27|Конокофиллипс Компани|ICE SCREEN SUPPORTS FOR SELF-LIFTING DRILLING MARINE BASIS OF ICE CLASS|
    RU2564711C2|2010-10-21|2015-10-10|Конокофиллипс Компани|Self-elevating drilling offshore unit of ice class with single conic pile-supported leg and adjusting seats|
    CN103074876B|2013-01-06|2015-04-29|中国海洋石油总公司|Offshore platform ice breaking device|
    WO2016014413A1|2014-07-22|2016-01-28|Shell Oil Company|Leg protectors for jack-up rigs|
    RU164346U1|2014-08-11|2016-08-27|Блю Кэпитал Пте. Лтд.|MARINE FACILITY FOR DRILLING, PRODUCING AND / OR STORAGE OF MARINE DEPOSIT PRODUCTS|
    RU2603421C1|2015-10-13|2016-11-27|Акционерное общество "Центральное конструкторское бюро "Коралл"|Off-shore self-elevating platform|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI822158A|FI822158L|1982-06-15|1982-06-15|BORRNINGSPLATTFORM|
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