Matching components for blowout preventers in drilling tools

A technology of supporting components and internal blowout prevention, which is applied in the parts of lighting devices, lighting devices, valve devices of wellbore/well, etc. It can solve problems such as tool damage and stable assembly, so as to reduce potential safety hazards and ensure effective installation. , The effect of improving the safety of well entry

Active Publication Date: 2022-02-22
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a matching assembly for the internal blowout preventer of the drilling tool to solve the problems in the prior art that it is difficult to stably assemble the internal blowout preventer represented by the flap float valve, and the manual knocking method is easy to cause damage to the tool, etc. To achieve the purpose of improving assembly stability and avoiding damage to tools

Method used

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  • Matching components for blowout preventers in drilling tools
  • Matching components for blowout preventers in drilling tools
  • Matching components for blowout preventers in drilling tools

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A supporting component for the inner blowout preventer of the drilling tool, its function is to assist when the inner blowout preventer is installed in the housing 15, such as Figure 2 to Figure 4 As shown, it includes an outer cylinder 1, a force-bearing member 2 fixedly sleeved on the outer wall of the outer cylinder 1, and a force-applying member 3 slidingly sleeved on the outer wall of the outer cylinder 1. The force-applying member 3 is located above the force-bearing member 2. A buffer layer 4 is provided at the bottom of the force member 2; the outer diameter of the outer cylinder 1 is the same as that of the matching inner blowout preventer; it also includes a middle cylinder 5 that runs through the outer cylinder 1, and the middle cylinder 5 and the outer cylinder 1 are coaxial, and the middle cylinder 5 can move axially in the outer cylinder 1.

[0034] Such as figure 2 As shown, the first centering device 6 and the second centering device 7 distributed up ...

Embodiment 2

[0039] The supporting assembly for the blowout prevention device in the drilling tool, on the basis of embodiment 1, also includes such as Figure 5 As shown in the base 8 , a cylindrical boss 801 is arranged on the top of the base 8 , and a first light source 802 is embedded on the top surface of the cylindrical boss 801 .

[0040] The state of base 8 when in use is as Figure 6 As shown, it is sufficient to cover the male buckle end at the bottom of the housing 15 on the outside of the boss 801 on the base.

[0041] Preferably, the outer diameter of the boss 801 shown is equal to the inner diameter of the male buckle end at the bottom of the housing 15 .

Embodiment 3

[0043] For the supporting assembly of blowout preventer in drilling tool, on the basis of embodiment 2, such as Figure 7 and Figure 8 As shown, it also includes an inner cylinder 9 that can move axially in the middle cylinder 5, and the length of the inner cylinder 9 is greater than the length of the middle cylinder 5; the bottom end of the inner cylinder 9 is provided with a first reflector 10, an inner cylinder 9. A second reflective mirror 11 is provided at the top; the first reflective mirror 10 is used to reflect the light coming from the radial direction of the inner tube 9 to the second reflective mirror 11 through the inner tube 9 . The outer diameter of the inner cylinder 9 is equal to the inner diameter of the middle cylinder 5, and the inner cylinder 9 and the middle cylinder 5 are slidingly fitted.

[0044] The first reflective mirror 10 is fixedly connected to one side of the bottom end of the inner cylinder 9, and the first reflective mirror 10 is inclined tow...

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Abstract

The invention discloses a matching assembly for a blowout prevention device inside a drilling tool, which comprises an outer cylinder, a force-bearing part fixedly sleeved on the outer wall of the outer cylinder, and a force-applying part slidingly sleeved on the outer wall of the outer cylinder. Above the part, a buffer layer is provided at the bottom of the force-bearing part; the outer diameter of the outer cylinder is the same as that of the matching inner blowout preventer; coaxial, and the middle cylinder can move axially in the outer cylinder. The invention provides a matching assembly for the internal blowout preventer of the drilling tool to solve the problems in the prior art that it is difficult to stably assemble the internal blowout preventer represented by the flap float valve, and the manual knocking method is easy to cause damage to the tool, etc. The purpose of improving assembly stability and avoiding damage to tools is realized.

Description

technical field [0001] The invention relates to the field of blowout prevention in drilling tools, in particular to a matching assembly for a blowout prevention device in drilling tools. Background technique [0002] The internal blowout preventer is one of the important tools connected to the bottom hole assembly during the drilling process. Its purpose is to automatically shut down when encountering accidents such as overflow, well kick, and blowout, so as to prevent the fluid in the well from returning from the drill pipe. to the major safety accidents caused by the drill floor. The flap float valve is a very common normally closed internal blowout preventer with a simple structure and low cost, and is widely used in the drilling and construction operations of major oil fields. The assembly structure of the flap float valve is as follows: figure 1 As shown, it includes a shell and a float valve. The shell is used to connect with the rest of the drilling tools at the upp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/06E21B34/02F21V7/10
CPCE21B33/06E21B34/02F21V7/10E21B2200/05
Inventor 潘海泽张卓然潘永伟李根宋忞倩
Owner SOUTHWEST PETROLEUM UNIV
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