METHOD AND APPARATUS FOR INSTALLING UNDERWATER WELLHEAD SUPPORT
First Claim
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1. A BASE PLATFORM ASSEMBLY TO BE LOCATED ON A SUBAQUEOUS BOTTOM, BENEATH A BODY OF WATER COMPRISING:
- A BASE PLATFORM, MEANS ASSOCIATED WITH SAID BASE PLATFROM FOR SPACING THE LOWER ENDS OF A PLURALITY OF PRIMARY GUIDELINES WITH RESPECT TO EACH OTHER AND WITH RESPECT TO AN UPSTANDING CONDUCTOR PIPE TO BE SET IN THE FORMATIONS UNDERLYING A SUBAQUEOUS BOTTOM, SAID PLURALITY OF PRIMARY GUIDELINES BEING ADAPTED TO EXTEND TO THE SURFACE OF A BODY OF WATER IN WHICH SAID BASE PLATFORM ASSEMBLY IS TO BE LOCATED TO POSITION SAID BASE PLATFORM ASSEMBLY AND THE UPSTANDING CONDUCTOR PIPE WITH RESPECT TO EACH OTHER AND A WELLBORE EXTENDING INTO THE FORMATIONS UNDERLYING THE SUBAQUEOUS BOTTOM;
A PLURALITY OF UPSTANDING LEG GUIDES OF SAID BASE PLATFORM ASSEMBLY FIXEDLY SPACED OUTWARD OF SAID MEANS FOR SPACING THE LOWER ENDS OF A PLURALITY OF PRIMARY GUIDELINES, EACH OF SAID LEG GUIDES BEING ADAPTED TO COACT WITH ONE OF A PLURALITY OF SPACED LEGS OF A WELLHEAD SUPPORT STRUCTURE TO LOCATE A WELLHEAD SUPPORT STRUCTURE WITH RESPECT TO A CONDUCTOR PIPE TO BE SET IN THE WELLBORE EXTENDING INTO THE FORMATIONS UNDERLYING A SUBAQUEOUS BOTTOM WITH THE UPPER END OF THE CONDUCTOR PIPE LOCATED BENEATH THE SURFACE OF THE BODY OF WATER;
AND A PLURALITY OF SECONDARY GUIDELINES, ONE END OF EACH OF SAID SECONDARY GUIDELINES BEING SECURED TO SAID BASE PLATFORM AT SPACED INTERVALS OUTWARD OF SAID PLURALITY OF PRIMARY GUIDELINES AND ADAPTED FOR EXTENDING TO THE SURFACE OF A BODY OF WATER IN WHICH SAID BASE PLATFORM ASSEMBLY IS TO BE LOCATED TO GUIDE A WELLHEAD SUPPORT STRUCTURE THROUGH THE BODY OF WATER TO CONTACT THE LEGS OF THE WELLHEAD SUPPORT STRUCTURE WITH SAID UPSTANDING LEG GUIDES.
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1 Claim
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1. A BASE PLATFORM ASSEMBLY TO BE LOCATED ON A SUBAQUEOUS BOTTOM, BENEATH A BODY OF WATER COMPRISING:
- A BASE PLATFORM, MEANS ASSOCIATED WITH SAID BASE PLATFROM FOR SPACING THE LOWER ENDS OF A PLURALITY OF PRIMARY GUIDELINES WITH RESPECT TO EACH OTHER AND WITH RESPECT TO AN UPSTANDING CONDUCTOR PIPE TO BE SET IN THE FORMATIONS UNDERLYING A SUBAQUEOUS BOTTOM, SAID PLURALITY OF PRIMARY GUIDELINES BEING ADAPTED TO EXTEND TO THE SURFACE OF A BODY OF WATER IN WHICH SAID BASE PLATFORM ASSEMBLY IS TO BE LOCATED TO POSITION SAID BASE PLATFORM ASSEMBLY AND THE UPSTANDING CONDUCTOR PIPE WITH RESPECT TO EACH OTHER AND A WELLBORE EXTENDING INTO THE FORMATIONS UNDERLYING THE SUBAQUEOUS BOTTOM;
A PLURALITY OF UPSTANDING LEG GUIDES OF SAID BASE PLATFORM ASSEMBLY FIXEDLY SPACED OUTWARD OF SAID MEANS FOR SPACING THE LOWER ENDS OF A PLURALITY OF PRIMARY GUIDELINES, EACH OF SAID LEG GUIDES BEING ADAPTED TO COACT WITH ONE OF A PLURALITY OF SPACED LEGS OF A WELLHEAD SUPPORT STRUCTURE TO LOCATE A WELLHEAD SUPPORT STRUCTURE WITH RESPECT TO A CONDUCTOR PIPE TO BE SET IN THE WELLBORE EXTENDING INTO THE FORMATIONS UNDERLYING A SUBAQUEOUS BOTTOM WITH THE UPPER END OF THE CONDUCTOR PIPE LOCATED BENEATH THE SURFACE OF THE BODY OF WATER;
AND A PLURALITY OF SECONDARY GUIDELINES, ONE END OF EACH OF SAID SECONDARY GUIDELINES BEING SECURED TO SAID BASE PLATFORM AT SPACED INTERVALS OUTWARD OF SAID PLURALITY OF PRIMARY GUIDELINES AND ADAPTED FOR EXTENDING TO THE SURFACE OF A BODY OF WATER IN WHICH SAID BASE PLATFORM ASSEMBLY IS TO BE LOCATED TO GUIDE A WELLHEAD SUPPORT STRUCTURE THROUGH THE BODY OF WATER TO CONTACT THE LEGS OF THE WELLHEAD SUPPORT STRUCTURE WITH SAID UPSTANDING LEG GUIDES.
- A BASE PLATFORM, MEANS ASSOCIATED WITH SAID BASE PLATFROM FOR SPACING THE LOWER ENDS OF A PLURALITY OF PRIMARY GUIDELINES WITH RESPECT TO EACH OTHER AND WITH RESPECT TO AN UPSTANDING CONDUCTOR PIPE TO BE SET IN THE FORMATIONS UNDERLYING A SUBAQUEOUS BOTTOM, SAID PLURALITY OF PRIMARY GUIDELINES BEING ADAPTED TO EXTEND TO THE SURFACE OF A BODY OF WATER IN WHICH SAID BASE PLATFORM ASSEMBLY IS TO BE LOCATED TO POSITION SAID BASE PLATFORM ASSEMBLY AND THE UPSTANDING CONDUCTOR PIPE WITH RESPECT TO EACH OTHER AND A WELLBORE EXTENDING INTO THE FORMATIONS UNDERLYING THE SUBAQUEOUS BOTTOM;
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Current AssigneeJack L. Hubbard
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Original AssigneeJack L. Hubbard
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InventorsHubbard, Jack L.
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Application NumberUS04/681,600Time in Patent Office482 DaysField of SearchUS Class Current166/349CPC Class CodesE21B 33/035 specially adapted for under...
