Template type underwater dry-type well head structure

A dry, base plate technology, applied in wellbore/well components, sealing/isolation, earthwork drilling and production, etc., can solve the problems of high production cost, complex structure, difficult to achieve yield in marginal oil fields, etc., to reduce Production cost, cost saving effect
CN102913177AInactive Publication Date: 2013-02-06CHINA NAT OFFSHORE OIL CORP +2
6 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2013-02-06
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a template type underwater dry-type well head structure. The structure comprises a template, a dry-type cabin which is installed on the template and a well head, wherein the template comprises a plurality of cylindrical bases, a vertical posts which are installed in the centers of the inner portions of the cylindrical bases and a plurality of connecting beams which are installed on the upper portions of the vertical posts, the upper ends of the connecting beams are connected with the dry type cabin, a drill conductor guide is arranged on a cabin body of the dry type cabin, a drill conductor is installed on the dry type cabin through the drill conductor guide, and a well head is arranged at the top of the drill conductor. The head structure can be arranged in a certain depth underwater, a dry type oil extraction device can be used for oil extraction underwater, the problems of oilfield exploitation in special water surface moving areas are solved, and the effects for moving of ships in the areas are avoided; and at the same time, the production cost is reduced greatly, and the expenses for using underwater devices are saved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a wellhead structure, in particular to a base plate type underwater dry wellhead structure used in a special water surface activity area where no structures protrude from the water surface. It belongs to the field of offshore oil engineering. Background technique

[0002] In recent years, with the rapid development of the economy, the demand for oil has increased, and oil consumption has increased year by year. Most of the large-scale oilfields that have been exploited in my country have entered the later stage of development, and there are very few well-packaged high-quality oilfields that have been proven to be developed. Therefore, the exploitation of marginal oilfields is becoming more and more important.

[0003] At present, some marginal oil fields with relatively large reserves are located in special water surface activity areas. Ships often travel in these sea areas. In order not to affect the normal running of ships, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More