Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-stage fracturing oil soluble trace element tracer

A trace element and tracer technology, which is applied in the direction of measurement, production fluid, wellbore/well components, etc., can solve the problems of large amount, unsafe on-site use, high cost, etc., and achieve stable chemical properties, maintain stability, and detect high precision effect

Inactive Publication Date: 2020-10-13
青岛大地新能源技术研究院
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies in the existing tracer monitoring technology that there are few types of oil-soluble tracers, large dosage, high cost, unsafe and environmentally friendly, and difficult to popularize and use in large-scale multi-stage fracturing technology, the present invention provides an oil-soluble trace element tracer It aims to overcome the problems of traditional oil-soluble tracers such as limited types, large dosage, high cost, and unsafe use on site.

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
  • Multi-stage fracturing oil soluble trace element tracer
  • Multi-stage fracturing oil soluble trace element tracer
  • Multi-stage fracturing oil soluble trace element tracer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A multi-stage fracturing oil-soluble trace element tracer, comprising 1% cobalt isooctanoate by mass fraction, 2% polyisobutylene succinimide by mass fraction, 5ppm simethicone oil, and the rest are white oil . Weigh each component according to the above mass fraction, add cobalt isooctanoate to the white oil, stir evenly, add polyisobutylene succinimide, stir evenly, add dimethyl silicone oil, and continue stirring for 30 minutes to obtain the above oil-soluble formula. tracer products.

Embodiment 2

[0041] A multi-stage fracturing oil-soluble trace element tracer comprises gallium isooctanoate with a mass fraction of 5%, polyisobutene with a mass fraction of 3%, fluorocarbon-based silicone oil at 20ppm, and kerosene as the rest. Weigh each component according to the above mass fraction, add gallium isooctanoate to kerosene, stir evenly, add polyisobutene, stir evenly, add fluorocarbon-based silicone oil, and continue stirring for 30 minutes to obtain the above oil-soluble tracer product.

Embodiment 3

[0043] A multi-stage fracturing oil-soluble trace element tracer comprises zirconium isooctanoate with a mass fraction of 10%, ashless phosphate ester with a mass fraction of 5%, acrylate ester at 50ppm, and the rest is white oil. Weigh each component according to the above mass fraction, add zirconium isooctanoate to the white oil, stir evenly, add ashless phosphate, stir evenly, add acrylate, and continue stirring for 30 minutes to obtain the above oil-soluble tracer product.

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 provides a multi-stage fracturing oil soluble trace element tracer. The multi-stage fracturing oil soluble trace element tracer comprises 1-10% of organic salt of trace metal elements, 2-5% of dispersing agent, 5-50 ppm defoaming agent and the balance of diluent according to the mass fraction. The multi-stage fracturing oil soluble trace element tracer has the advantages that multiple types are realized, the preparation is simple, the usage is less, the cost is low, the oil solubility is good, the spreading is fast, the chemical property is stable, the compatibility with stratumenvironment is good, the detection accuracy is high, the multi-stage fracturing oil soluble trace element tracer is safe and environmentally friendly, the multi-stage fracturing oil soluble trace element tracer and a common water soluble trace element tracer can be simultaneously used in a fracturing fluid, cannot interfere with each other and can be used for continuously monitoring crude oil output and output speed of each layer section after multi-stage fracturing.

Description

technical field [0001] The invention belongs to the technical field of increasing production of oil and gas wells in the petroleum industry, and relates to an oil-soluble trace element tracer for multi-stage fracturing and an application thereof. [0002] technical background [0003] With the large-scale development of low-permeability oil and gas reservoirs in my country, fracturing stimulation technology has made great progress. Although there is a certain gap with the advanced level of foreign fracturing technology, in recent years, domestic large-scale horizontal well multi-stage and staged fracturing has been continuously developed. In order to maximize the role of fracturing technology in increasing production of oil and gas fields, oil reservoirs, geology, fracturing materials and techniques, fracturing effect evaluation and production monitoring technologies must be organically combined. Among them, the use of tracer monitoring technology to analyze and evaluate fra...

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): E21B43/26E21B43/14E21B47/00E21B49/00
CPCE21B43/26E21B43/14E21B47/00E21B49/00
Inventor 王乐泉高源史胜龙房堃温庆志张东晓
Owner 青岛大地新能源技术研究院