Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Large-scale staged fracturing experiment simulated wellbore

An experimental simulation, large-scale technology, applied in wellbore/well components, measurement, and production of fluids, etc., can solve the problem of single simulated fracture, achieve the effect of convenient disassembly and assembly, meet the requirements of indoor experiments, and simple structure

Active Publication Date: 2019-08-13
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, due to the limitations of existing fracturing experimental equipment, the simulated fracturing wellbore basically uses a hollow straight pipe or angled pipe to process a joint connected with the fracturing equipment. The simulated wellbore is an independent chamber, and the upper part of the chamber is There are one or more slots, so only single fracture or multi-fracture simultaneous fracturing can be performed, simulating a single fracture

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
  • Large-scale staged fracturing experiment simulated wellbore
  • Large-scale staged fracturing experiment simulated wellbore
  • Large-scale staged fracturing experiment simulated wellbore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Figure 1A It is an exploded view of a preferred embodiment of a simulated wellbore for a large-scale staged fracturing experiment according to the present invention; Figure 1B It is an overall rendering of a preferred embodiment of a large-scale staged fracturing experiment simulating a wellbore according to the present invention; Figure 2A for Figure 1A The structural representation of the standard shaft body of the shown embodiment; Figure 2B for Figure 2A B-B sectional view of the illustrated embodiment; image 3 for Figure 1A Schematic diagram of the structure of the first wellbore body of the illustrated embodiment; Figure 4A for Figure 1A A top view of the side cover of the illustrated embodiment; Figure 4B for Figure 1A A side view of the side cover of the illustrated embodiment; Figure 5 for Figure 1A Schematic diagram of the structure of the end cap of the illustrated embodiment.

[0036] Figure 1 to Figure 5 As shown, the simulat...

Embodiment 2

[0041] Embodiment 2: Large-scale staged fracturing experiment simulates a wellbore, the same as Embodiment 1, except that the arc of the arc-shaped slot is 12°.

Embodiment 3

[0042] Embodiment 3: Large-scale staged fracturing experiment simulates a wellbore, the same as Embodiment 1, except that the arc of the arc-shaped slot is 15°.

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 a large-dimension staged fracturing experiment simulation wellbore. The large-dimension staged fracturing experiment simulation wellbore comprises standard wellbore bodies, a first section wellbore body, a side cover, and an end cover, one end of each standard wellbore body is a male joint, the other end is a female joint, one side of the wellbore body is provided with an opening, the other side is provided with an arc slit, the slit is communicated with a liquid-injection pipeline joint via a liquid-injection hole, one end of the first section wellbore body is a female joint, the other end is a wellbore outlet without threads, the side cover is a thin-wall semicircular pipe, and one end of the end cover is provided with outside threads. One set of the large-dimension staged fracturing experiment simulation wellbore comprises one first section wellbore body, one end cover, and a plurality of standard wellbore bodies, and each wellbore body is connected with a hydraulic pump via an independent liquid-injection pipeline. The large-dimension staged fracturing experiment simulation wellbore is applicable to large-dimension staged hydraulic fracturing experiment simulation, the form of the slit in the experiment condition is obtained, the modular design is employed, the structure is simple, the operation is convenient, and the indoor experiment requirement can be met.

Description

technical field [0001] The present invention relates to a large-scale simulated wellbore for staged fracturing experiments, in particular to a large-scale simulated wellbore for staged fracturing experiments that can conveniently control the number of fracturing stages and hydraulic pressure, and can well simulate on-site staged fracturing . Background technique [0002] Hydraulic fracturing is one of the ways to increase production and injection in the development of low-permeability oil and gas reservoirs. Due to insufficient understanding of the influencing factors and expansion mechanism of hydraulic fracture propagation laws, and the difficulty of on-site detection of hydraulic fracturing fractures, it is difficult to accurately understand the fracture morphology of on-site hydraulic fracturing. Through indoor hydraulic fracturing experiment simulation, it can detect and simulate the physical process of multi-stage hydraulic fracturing, and obtain intuitive fracture ge...

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
Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/26E21B47/00
Inventor 张广清周大伟
Owner CHINA UNIV OF PETROLEUM (BEIJING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com