Oil screen central main pipe

A technology of main pipe and screen pipe, which is applied in the direction of production fluid, wellbore/well parts, earthwork drilling and production, etc. It can solve the problems of affecting the filtering effect, the complicated structure of the oil well screen pipe, and the easy deformation of the filtering layer, so as to achieve stable filtering effect, The structure is simple and practical, and the effect of convenient downhole operation

Inactive Publication Date: 2019-06-14
XIAN ANT PETROLEUM TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing technology, solve the problem that the existing oil well screen with filter has a complicated structure, and the filter layer is easily deformed and affects the filtering effect.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oil screen central main pipe
  • Oil screen central main pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] As attached figure 1 In the shown embodiment, the present invention is provided with: a central main pipe 2, a filter core tube 4, an outer protective sleeve 5. The central main pipe 2 is a bored screen type central main pipe with screen holes drilled in the pipe body section, and the outer protective sleeve Tube 5 is the outer sheath of the grooved bridge punched screen with filter slits punched on both sides. The bored screen tube body of the central main pipe 2 is externally connected with three layers of filter core tubes 4 with meshes of different diameters. , The filter core tube 4 is externally connected with the outer sheath 5 of the grooved bridge punching screen, the outer sheath 5 of the grooved bridge punching screen and the filter core tube 4 are fixedly connected to the joint The ring 3 and the coupling ring 3 are fixedly welded on the pipe body of the central main pipe 2.

[0017] Further, the outer protective sleeve of the present invention adopts an outer...

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

PUM

No PUM Login to view more

Abstract

The invention discloses an oil screen central main pipe. The oil screen central main pipe is provided with a center main pipe, an outer sheath pipe and a filter net core tube; and the central main pipe is a drill hole screen pipe type central main pipe (2) with a screening hole drilled in a pipe body section, a drill hole screen pipe body of the central main pipe (2) is externally connected with 1-6 layers of screen net core pipes (4) in a coating mode, the filter net core pipes (4) are externally connected with the outer sheath pipe in a coating mode, linkage rings (3) are fixedly connected to two ends of the outer sheath pipe and the filter net core pipes (4), and the linkage rings (3) are fixedly connected to a pipe body of the central main pipe (2). When the oil screen central main pipe is used, like an existing filtering oil well screen pipe, according to the design requirements, both ends of the oil screen central main pipe are assembled on an oil production well pipe, and the oil production and sand prevention filtration operation can be performed.

Description

Technical field [0001] The invention belongs to the technical field of petroleum transportation, and relates to a petroleum screen center supervisor. Background technique [0002] With the continuous development of the oil and natural gas extraction industry and the rapid advancement of science and technology, the technical requirements for oil extraction equipment are getting higher and higher. In oil and natural gas exploitation, due to the limitation of the underground oil layer environment, especially in order to improve the quality of the produced crude oil, oil well screens with filtering are usually installed at the set positions of the oil production well pipes. In the known technology, the existing oil well screens with filtering mainly adopt bored screens with a pipe body drilled with sieve holes, a slotted screen with slits cut on the pipe body, and a support frame wound There are trapezoidal wire-wrapped wire screens, etc. Due to structural limitations, the sand cont...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E21B43/08
Inventor 栗汝杰
Owner XIAN ANT PETROLEUM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap