Casing head with optical fiber

Abstract

The utility model discloses a casing head with an optical fiber, which comprises a casing head body, a surface casing hanger and a well completion hanger, the bottom of the casing head body is provided with the surface casing hanger, the upper portion of the casing head body is provided with the well completion hanger through a sealing ring, and the outer circle of an upper end flange of the casing head body is provided with a jackscrew. A gate valve, a needle valve and a pressure gauge are installed on the two sides of the casing head body respectively. The casing head is characterized in that the casing head body and the well completion hanger are provided with through holes, the optical fiber penetrates through the through holes to be installed underground, and the sealing gasket, the rectangular sealing ring and the pressing cap sealing optical fiber are installed at the through holes. The casing head is simple in structure, reliable in sealing and convenient to install, the penetrating holes are designed in the casing head body and the well completion hanger to install the optical fiber underground, and remote monitoring and real-time data transmission of a well mouth are achieved through the optical fiber.

Description

Technical Field

[0001] The utility model belongs to the field of petroleum drilling, and in particular relates to a casing head with optical fiber. Background Art

[0002] As we all know, in the field of oil drilling, the casing head is mainly used to hang and seal the casing string, and to perform mud circulation, cementing, testing and other operations through the side outlet. The existing casing head mainly focuses on the design of sealing performance, and has not yet solved the problem of remote transmission monitoring. Summary of the invention

[0003] The utility model aims to provide a casing head with optical fiber, which has simple structure, reliable sealing, and is easy to install, and can realize remote monitoring and real-time data transmission of a wellhead.

[0004] The technical solution of the utility model is: a casing head with optical fiber, comprising a casing head body, a surface casing hanger, and a completion hanger, the surface casing hanger is installed at the bottom of the casing head body, the completion hanger is installed on the upper part of the casing head body through a sealing ring, a top screw is installed on the outer circle of the upper end flange of the casing head body, and a gate valve, a needle valve and a pressure gauge are installed on both sides of the casing head body; its characteristics are: the casing head body and the completion hanger are provided with a through hole, the optical fiber is installed to the well through the through hole, and a sealing gasket, a rectangular sealing ring and a pressure-sealed optical fiber are installed at the through hole.

[0005] The utility model has the advantages that through holes are designed on the casing head body and the completion hanger to install the optical fiber downhole, and remote monitoring and real-time data transmission of the wellhead are realized through the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a schematic diagram of the structure of the optical fiber casing head of the utility model;

[0007] In the figure: 1 casing head body; 2 surface casing hanger; 3 sealing ring; 4 gate valve; 5 needle valve; 6 pressure gauge; 7 completion hanger; 8 jack screw; 9 optical fiber; 10 pressure cap; 11 rectangular sealing ring; 12 sealing gasket; 13 through hole. DETAILED DESCRIPTION

[0008] The technical solution of the utility model is described below in conjunction with the accompanying drawings.

[0009] like Figure 1As shown, a casing head with optical fiber comprises a casing head body 1, a surface casing hanger 2 and a completion hanger 7. The surface casing hanger 2 is installed at the bottom of the casing head body 1, the completion hanger 7 is installed on the upper part of the casing head body 1 through a sealing ring 3, a top screw 8 is installed on the outer circle of the upper end flange of the casing head body 1, and a gate valve 4, a needle valve 5 and a pressure gauge 6 are installed on both sides of the casing head body 1 respectively; the characteristic is that: the casing head body 1 and the completion hanger 7 are provided with a through hole 13, the optical fiber 9 is installed downhole through the through hole 13, and a sealing gasket 12, a rectangular sealing ring 11 and a pressure cap 10 are installed at the through hole 13 to seal the optical fiber.

Claims

1. A casing head with optical fiber, comprising a casing head body, a surface casing hanger, and a completion hanger, wherein the surface casing hanger is installed at the bottom of the casing head body, the completion hanger is installed on the upper part of the casing head body through a sealing ring, a top screw is installed on the outer circle of the upper end flange of the casing head body, and a gate valve, a needle valve and a pressure gauge are installed on both sides of the casing head body; its characteristics are: The casing head body and the completion hanger are provided with through holes, and the optical fiber is installed downhole through the through holes. A sealing gasket, a rectangular sealing ring and a compression seal for the optical fiber are installed at the through holes.

Images