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Rubber cylinder installation structure and installation method thereof

A technology for installing structures and rubber cartridges, which is applied in earthwork drilling, wellbore/well components, construction, etc. It can solve problems such as frequent maintenance, poor stability, and cumbersome installation, and achieve high installation efficiency and high structural stability.

Active Publication Date: 2018-02-16
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing pressure compensation mechanism has the defects of cumbersome installation and poor stability, which cannot effectively meet the needs of actual use, and requires frequent maintenance operations

Method used

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  • Rubber cylinder installation structure and installation method thereof
  • Rubber cylinder installation structure and installation method thereof
  • Rubber cylinder installation structure and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, Embodiment 1 of the present invention provides a rubber cartridge installation structure, including a rubber cartridge 5, a first squeeze mechanism and a second squeeze mechanism; , the first squeeze mechanism includes a first squeeze ring 4 for squeezing the first end of the rubber tube and a first adjustment assembly 3 for adjusting the squeeze force of the first squeeze ring 4; the second end of the rubber tube is sleeved On the outside of the rotor shaft 2, the second squeeze mechanism includes a second squeeze ring 6 for squeezing the second end of the rubber cylinder and a second adjustment assembly 7 for adjusting the squeeze force of the second squeeze ring 6; wherein, the rubber Oil is injected into the cavity between the inner surface of the barrel 5 and the fixed housing 1 and the rotor shaft 2, and the outer surface of the rubber barrel 5 is in direct contact with the drilling fluid to meet actual production needs.

[0043] In the...

Embodiment 2

[0053] Embodiment 2 of the present invention provides a method for installing a rubber cartridge installation structure, including:

[0054] Sleeve the first squeeze ring and the first end of the rubber tube on the outside of the fixed housing respectively, and slide the first squeeze ring to the preset position;

[0055] The first adjustment assembly is sleeved in the area between the shoulder on the outside of the fixed housing and the first squeeze ring, and the first adjustment assembly drives the first squeeze ring to continue to slide, so that the first squeeze ring of the first squeeze ring The tight groove squeezes the first end of the rubber tube tightly;

[0056] Set the second squeeze ring and the second end of the rubber tube on the outside of the rotor shaft respectively, and slide the second squeeze ring to the preset position;

[0057] Set the second adjustment component on the side of the second squeeze ring away from the rubber tube, and the second adjustment...

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PUM

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Abstract

The invention discloses a rubber cylinder installation structure and an installation method thereof. The rubber cylinder installation structure comprises a rubber cylinder, a first extruding mechanismand a second extruding mechanism; the first end of the rubber cylinder is arranged on the outer side of a fixed shell in a sleeving mode, and the first extruding mechanism comprises a first extrudingring for extruding the first end of the rubber cylinder and a first adjusting assembly for adjusting extruding force of the first extruding ring; the second end of the rubber cylinder is arranged onthe outer side of a rotor shaft in a sleeving mode, and the second extruding mechanism comprises a second extruding ring for extruding the second end of the rubber cylinder and a second adjusting assembly for adjusting extruding force of the second extruding ring; the installation method comprises the steps that the first extruding ring and the first end of the rubber cylinder are arranged on theouter side of the fixed shell in a sleeving mode, and the first extruding ring slides to the preset position; and the first adjusting assembly is arranged in the area between a table shoulder on the outer side of the fixed shell and the first extruding ring in a sleeving mode, and the first adjusting assembly drives the first extruding ring to slide continuously so that a first extruding groove ofthe first extruding ring extrudes the first end of the rubber cylinder and the like.

Description

technical field [0001] The present application relates to but not limited to the technical field of petroleum well logging equipment, especially a rubber cartridge installation structure and an installation method thereof. Background technique [0002] The Measurement While Drilling (MWD) system can measure parameters such as well deviation, well deviation azimuth, downhole torque, drill bit load-bearing, natural gamma ray, and resistivity. With the development of petroleum engineering, in the 1980s, on the basis of the original measurement-while-drilling system MWD, a number of parameter sensors for formation evaluation were added, such as compensated dual lateral resistivity, natural gamma ray, azimuth neutron density, Acoustic waves, compensated neutron density, etc.; a system composed of these instruments is often called a logging while drilling system (Logging While Drilling: LWD). MWD and LWD are the key technologies to complete large-angle and horizontal well drillin...

Claims

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Application Information

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IPC IPC(8): E21B47/20E21B33/12
CPCE21B33/12E21B47/20
Inventor 王智明菅志军赵宏宇兰铁坤王红亮
Owner CHINA NAT OFFSHORE OIL CORP