FIELD: oil and gas industry.
SUBSTANCE: invention is related to the sphere of drilling equipment. The jack-up drilling offshore unit of ice class with gas mixing comprises a floating hull, an area of ice deflector, support legs of truss structure, jack-up mechanism, ice-reinforced screens for support legs and gas system for water mixing. The floating hull has smooth deck in the upper part and ice-deflecting pattern in the lower part. The area of ice deflector passes along perimeter of the hull bottom. Support legs are designed for recovery from the bottom. Jack-up mechanism my recover support legs from the bottom in order to push the hull from water. Gas system is designed to mix water in order to reduce ice-related problems close to the support legs.
EFFECT: prolongation of drilling season is ensured in shallow water near the Arctic shore or at placed subject to ice formation.
20 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SELF-LIFTING MARINE DRILLING ICE-BREAKING-CLASS PLATFORM WITH ICING RULED OUT BY GAS MIXING | 2011 |
|
RU2571782C2 |
| ICE WORTHY JACK-UP DRILLING UNIT WITH PRE-LOADING TENSION SYSTEM | 2011 |
|
RU2583467C2 |
| SELF-ELEVATING DRILLING OFFSHORE UNIT OF ICE CLASS WITH SINGLE CONIC PILE-SUPPORTED LEG | 2011 |
|
RU2573301C2 |
| SELF-ELEVATING DRILLING OFFSHORE UNIT OF ICE CLASS WITH SINGLE CONIC PILE-SUPPORTED LEG AND ADJUSTING SEATS | 2011 |
|
RU2564711C2 |
| SELF-ELEVATING DRILLING RIG FOR SHALLOW WATER AREA OPERATION WITH SEASON ICE COVER | 2017 |
|
RU2667252C1 |
| SELF-LIFTING DRILLING ICE-RESISTANT PLANT | 2016 |
|
RU2620816C1 |
| JACK-UP DRILLING RIG WITH TWO DERRICKS FOR OPERATION UNDER ICE CONDITIONS | 2011 |
|
RU2555976C2 |
| ICE RESISTANT DRILLING COMPLEX FOR SHALLOW CONTINENTAL SHELF DEVELOPMENT | 2008 |
|
RU2382849C1 |
| IMMERSED MOVABLE CAISSON PROVIDED WITH ICE RESISTANCE FOR SEA OIL WELL DRILLING IN ARCTIC | 1993 |
|
RU2064553C1 |
| PROTECTIVE STRUCTURES OF WATER SEPARATING COLUMN | 2013 |
|
RU2574640C1 |
