A kind of subsea drilling template for tlp
A drilling base plate and technology of base plate, applied in the field of marine equipment, can solve the problem that the base plate cannot meet the TLP deep water drilling and other problems, and achieve the effect of improving the efficiency of drilling casing insertion and underwater operation
Active Publication Date: 2018-01-26
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology
[0004] Aiming at the above-mentioned disadvantage that the template in the prior art cannot release the constraint of the guide cylinder after the riser casing is installed, the present invention provides an underwater drilling template for TLP, which is designed for the deepwater conduit installation function. It has been improved and upgraded, and adopts a new installation method to meet the installation of conduits in deep water conditions, and at the same time satisfy the constraint release function of conduits, which solves the problem that the traditional template cannot meet the requirements of TLP deepwater drilling
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[0027] This embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same as or similar to those of this embodiment are within the protection scope of the present invention.
[0028] Please see attached figure 1 and attached figure 2 , The present invention mainly includes a base plate main structure 1 , a guide rope positioning system and a mechanical guide cylinder 3 , and the guide rope positioning system and the mechanical guide cylinder 3 are installed on the base plate main structure body 1 . In this embodiment, the base plate main structure 1 mainly includes a pile foundation guide sleeve 13 and a main frame structure 12 , the pile foundation guide sleeve 13 is fixedly installed on the main frame structure 12 , and the pile foundation guide sleeve 13 is used for inserting steel piles. The main function of the base 11 and the main frame structure 12 is to provide connection and support for the guide rope syst...
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The invention discloses an underwater drilling template applied to TLP (Tension Leg Platform). The underwater drilling template applied to the TLP comprises a template main structural body, a guide rope positioning system and a mechanical guide cylinder, wherein the guide rope positioning system and the mechanical guide cylinder are arranged on the template main structural body; the mechanical guide cylinder adopts a quick detachable structure. According to the underwater drilling template applied to the TLP, the TLP underwater well-head template is a necessary infrastructure for TLP drilling, the quick-detachable mechanical guide cylinder is designed, and the guide cylinder can be detached and free of limitation after drilling is finished. The underwater drilling template applied to the TLP combines the functions of a steel structure, detachable mechanical guidance, drilling and casing performing guidance, riser head installation guidance and the like. The design provided by the invention aims to solve the problem of TLP drilling and positioning guidance and meet the function requirement under the working condition that an underwater riser head needs flexible support to keep in position permanently at the same time, and has the characteristics that the drilling requirement function under specified conditions is met, and the drilling case insertion and the underwater operation efficiency are improved.
Description
technical field [0001] The invention discloses a drilling base plate, in particular an underwater drilling base plate for TLP, which is a well position guiding and positioning and wellhead support structure applied in the drilling process of a TLP platform for deep-sea oil exploitation, and belongs to the technical field of marine equipment . Background technique [0002] With the development of society and the advancement of science and technology, human society has an increasing demand for energy. After a long-term and large-scale development of onshore oil and gas resources, the worldwide oil and gas exploration and development has turned to the ocean with rich resources, while the offshore oil in the shallow sea has matured in mining technology for more than 20 years, and the development has basically covered the discovered areas. In recent years, the development of offshore oil has gradually moved towards the deep sea, and the deep sea is the real stage for offshore oi...
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Login to View More IPC IPC(8): E21B41/08
CPCE21B41/08
Inventor 袁晓兵杨文韦红术汪顺文符秀全陈斌苏瑞华李勇艾飞卢沛伟
Owner CHINA NAT OFFSHORE OIL CORP