Organic boron zirconium crosslinking agent

A technology of cross-linking agent and organic boron, which is applied in the field of oil field fracturing fluid, can solve the problems of difficulty in market production of organic boron-zirconium cross-linking agent, high raw material cost of organic boron-zirconium cross-linking agent, and reduction of economic benefits of oil field fracturing, etc. , to achieve the effect of improving the ability of seam making and carrying proppant, improving temperature resistance and shear resistance, and high cost

Inactive Publication Date: 2015-04-29
SOUTHWEST PETROLEUM UNIV
View PDF10 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of organic zirconium complexes, the raw material cost of organic boron zirconium crosslinking agent is high, which further reduces the economic benefits of oil field fracturing
[0008] In addition, in order to improve the temperature and shear resistance of organoboron-zirconium crosslinking agents in high-temperature fracturing fluid systems, some organoboron-zirconium crosslinking The market production of the agent brings certai

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
  • Organic boron zirconium crosslinking agent
  • Organic boron zirconium crosslinking agent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] An organic boron zirconium crosslinking agent, the formula is:

[0037] Calculated by weight:

[0038] 1 part of zirconium oxychloride; 2 parts of water; 3 parts of isopropanol; 0.4 parts of boric acid; 4 parts of methanol; 2 parts of glycerol; 1 part of sodium lactate; 1 part of triethanolamine; 0.5 part of tetrahydroxypropyl ethylenediamine.

[0039] This organoboron zirconium crosslinking agent is prepared by the following steps:

[0040] (1) Mix 10g of zirconium oxychloride, 20g of water and 30g of isopropanol into a zirconium salt solution, add it to the flask, pour ammonia into the solution at 55°C, reflux for 0.5 hours;

[0041] (2) Add 20g of glycerol, 10g of sodium lactate, 10g of triethanolamine, 5g of tetrahydroxypropyl ethylenediamine to the flask in sequence, and react for 3 hours;

[0042] (3) Add a boron solution of 4g boric acid and 40g methanol to the flask and react for 3 hours to obtain a light yellow organic boron-zirconium crosslinking agent...

Example Embodiment

[0043] Example 2

[0044] An organic boron zirconium crosslinking agent, the formula is:

[0045] Calculated by weight:

[0046] 1 part of zirconium oxychloride; 4 parts of water; 6 parts of isopropanol; 0.5 parts of borax; 10 parts of methanol; 4 parts of ethylene glycol; 2 parts of sodium lactate; 2 parts of triethanolamine; 0.5 parts of tetrahydroxypropyl ethylenediamine.

[0047] This organoboron zirconium crosslinking agent is prepared by the following steps:

[0048] (1) Prepare a zirconium salt solution with 10 g of zirconium oxychloride, 40 g of water and 60 g of isopropanol, add it to the flask, and pour ammonia into the solution at 60°C, and react at reflux for 1 hour;

[0049] (2) Add 40g of ethylene glycol, 20g of sodium lactate, 20g of triethanolamine, 5g of tetrahydroxypropyl ethylenediamine, and react for 2 hours in the flask;

[0050] (3) Add 5 g of borax and 100 g of methanol to a boron solution, and react for 2 hours to obtain a light yellow organic boron-zirconium cros...

Example Embodiment

[0051] Example 3

[0052] An organic boron zirconium crosslinking agent, the formula is:

[0053] Calculated by weight:

[0054] 1 part of zirconium tetrachloride; 2 parts of water; 4 parts of isopropanol; 0.8 parts of boric acid; 8 parts of methanol; 4 parts of glycerol; 1 part of sodium gluconate; 1 part of triethanolamine; 1 part of tetrahydroxypropyl ethylenediamine Copies.

[0055] This organoboron zirconium crosslinking agent is prepared by the following steps:

[0056] (1) Prepare a zirconium salt solution with 10 g of zirconium tetrachloride, 20 g of water and 40 g of isopropanol, add it to the flask, and pour ammonia into the solution at 58°C, and react at reflux for 1 hour;

[0057] (2) Add 40g glycerol, 10g sodium gluconate, 10g triethanolamine, 10g tetrahydroxypropyl ethylenediamine to the flask in sequence, and react for 3 hours;

[0058] (3) Add a boron solution of 8 g boric acid and 80 g methanol to the flask, and react for 2 hours to obtain a light yellow organic boron z...

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

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Viscosityaaaaaaaaaa
Login to view more

Abstract

The invention provides an organic boron zirconium crosslinking agent, belonging to the technical field of oilfield fracturing fluids. In order to solve the problem that the existing organic boron zirconium crosslinking agent prepared from the expensive organic zirconium complex enhances the raw material cost of the organic boron zirconium crosslinking agent and lowers the economic benefit, the invention provides an organic boron zirconium crosslinking agent which comprises the following components in parts by weight: 1 part of inorganic zirconium salt, 2-4 parts of water, 3-6 parts of isopropanol, 0.4-1 part of inorganic boride, 4-20 parts of methanol, 2-4 parts of polyalcohol, 1-2 parts of sodium alpha-hydroxycarboxylate, 1-2 parts of triethanolamine and 0.5-1 part of tetrahydroxypropyl ethylenediamine. By using the cheap inorganic zirconium salt as the raw material, the organic boron zirconium crosslinking agent provided by the invention greatly saves the cost, and is beneficial to marketization of the organic boron zirconium crosslinking agent and wide application in the high-temperature-resistant fracturing fluid system.

Description

technical field [0001] The invention relates to oilfield fracturing fluid technology, in particular to an organoboron-zirconium crosslinking agent used in a high-temperature resistant fracturing fluid system. Background technique [0002] Oilfield fracturing technology is a major measure for oil and gas well stimulation, and it is widely used in various oilfields. It uses ground high-pressure pumps to pump fracturing fluid into the formation with a displacement that greatly exceeds the absorption capacity of the formation, forming cracks in the formation, improving the conductivity of oil and gas layers, and achieving the purpose of increasing production. [0003] Fracturing fluids have undergone tremendous evolution since they were first used to stimulate fractures in 1947. The early fracturing fluid was to add viscous fluid enough to open and extend fractures to gasoline; later, with the increase of well depth and well temperature, higher requirements were put forward for...

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): C09K8/68
CPCC09K8/685C09K8/80
Inventor 陈馥韩玉婷查仁兰庞敏罗米娜何坤忆
Owner SOUTHWEST PETROLEUM UNIV
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