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

Acid-rock reaction speed and kinetic parameter measuring device

A technology of kinetic parameters and acid-rock reaction, which is applied in the determination of acid-rock reaction speed and kinetic parameters, and in the field of acid fracturing and stimulation, can solve the problem of slow mass transfer rate of acid fluid, insufficient consideration of core cementation, and experimental data Problems such as large deviation from the underground true value, etc., to achieve the effect of a wide range of applications

Active Publication Date: 2018-12-25
SOUTHWEST PETROLEUM UNIV
View PDF13 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first point: each device does not fully consider the cementation of the core, that is, whether the core is loose. If the cementation of the core is poor, that is, the core is relatively loose, the core is not suitable for making flat plates, but only for cylindrical shapes; the second point: It is almost difficult to find related devices that can be used for both cylindrical cores and flat core experiments, and flat cores can simulate flat cracks; the third point: it is impossible to directly use the rotor speed to judge the acid flow rate or the judged acid flow rate The error is large; the fourth point: when carrying out the acid-rock reaction experiment of high viscosity acid liquid, the stirring in the reactor is insufficient, the mass transfer speed of the acid liquid is slow, the concentration distribution of the acid liquid is uneven, and the acid liquid at the sampling port cannot be real. It represents the change of the acid concentration in the reactor, and cannot represent the real flow of the underground acid, and the measured experimental data deviates greatly from the actual underground value

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
  • Acid-rock reaction speed and kinetic parameter measuring device
  • Acid-rock reaction speed and kinetic parameter measuring device
  • Acid-rock reaction speed and kinetic parameter measuring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see Figure 1-4As shown, a device for determining the reaction speed and kinetic parameters of acid rock, including a nitrogen cylinder 1, a carbon dioxide cylinder 2, a valve 3, a bypass pipeline 4, a compressor 5, a reactor 6, a temperature measuring display 7, and a pressure gauge 8 , pressure relief pipeline 9, heating ring 10, sampling pipeline 11, magnetic stirring rotor 12, nut A131, nut B132, bolt 133, nut C134, thread 135, magnetic steel 14, mi...

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 relates to an acid-rock reaction speed and kinetic parameter measuring device comprising a gas cylinder, a bypass pipeline, a compressor, a reaction kettle, a heating ring, a stirring rotor, a magnetic steel, a micro motor, a core holder and a heat preservation layer. There are three types of core holder that can hold cylindrical core and plate core. According to the acid-rock reaction speed and kinetic parameter measuring device, the flow of acid liquid in reservoir and the chemical reaction between acid liquid and rock in the reservoir under different reservoir temperatures andpressure conditions can be simulated more truly. The device can be used for not only the simulation of the acid-rock reaction of single-plate core, but also the simulation of crack of double-plate core.

Description

technical field [0001] The invention relates to an acidizing fracturing production stimulation transformation technology in petroleum exploitation engineering, in particular to the measurement of acid-rock reaction speed and kinetic parameters, and belongs to the technical field of petroleum exploitation. Background technique [0002] With the rapid development of petroleum exploration and development technology, more and more sandstone or carbonate reservoirs with low permeability, poor physical properties and strong heterogeneity have been discovered. If these oil and gas reservoirs are directly developed, the output of a single well is extremely low, which cannot reach the standard of industrial oil and gas flow, that is, it does not meet the requirements of economic development. Therefore, oil and gas reservoir stimulation must be carried out. Acid fracturing, as an important part of oil and gas reservoir stimulation technology, has gradually been paid attention to by p...

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 Applications(China)
IPC IPC(8): G01N33/24
Inventor 刘平礼陈祥赵立强王润宇苌北杨明杜鹃
Owner SOUTHWEST PETROLEUM UNIV
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