Check patentability & draft patents in minutes with Patsnap Eureka AI!

Barium sulfate scale inhibitor for oil field and preparation method thereof

A technology of barium sulfate and scale inhibitor, which is applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the problems of single scale inhibition effect and unsatisfactory scale inhibition effect, and achieve Easy to operate, excellent anti-scaling effect, simple preparation method

Pending Publication Date: 2021-11-05
陕西延长石油油田化学科技有限责任公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a barium sulfate scale inhibitor for oilfields, which solves the problems of unsatisfactory scale inhibition effect and single scale inhibition effect of existing barium sulfate scale inhibitors

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of barium sulfate antiscalant for oil field, specifically implement according to the following steps:

[0023] Step 1, weigh the following components according to mass percentage: 34% polyepoxysuccinic acid, 16% maleic acid-acrylic acid copolymer, 50% sodium ethylenediamine tetramethylene phosphate, the total weight percentage of the above components is 100%;

[0024] Step 2: Stir the substances weighed in step 1 for 20 minutes until they are uniformly mixed to obtain a barium sulfate scale inhibitor.

Embodiment 2

[0026] A kind of preparation method of barium sulfate antiscalant for oil field, specifically implement according to the following steps:

[0027] Step 1, weigh the following components according to mass percentage: 35% polyepoxysuccinic acid, 30% maleic acid-acrylic acid copolymer, 35% sodium ethylenediamine tetramethylene phosphate, the total weight percentage of the above components is 100%;

[0028] Step 2: Stir the substances weighed in step 1 for 20 minutes until they are uniformly mixed to obtain a barium sulfate scale inhibitor.

Embodiment 3

[0030] A kind of preparation method of barium sulfate antiscalant for oil field, specifically implement according to the following steps:

[0031] Step 1, weigh the following components according to mass percentage: 60% polyepoxysuccinic acid, 10% maleic acid-acrylic acid copolymer, 30% sodium ethylenediamine tetramethylene phosphate, the total weight percentage of the above components is 100%;

[0032] Step 2: Stir the substances weighed in step 1 for 15 minutes until they are uniformly mixed to obtain a barium sulfate scale inhibitor.

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 barium sulfate scale inhibitor for an oil field and a preparation method of the barium sulfate scale inhibitor, the barium sulfate scale inhibitor is prepared from the following components in percentage by mass: 34-69% of polyepoxysuccinic acid, 8-30% of maleic acid-acrylic acid copolymer and 16-50% of ethylene diamine tetra (methylene sodium phosphate), and the sum of the weight percentages of the components is 100%. The problems that an existing barium sulfate scale inhibitor is not ideal in scale inhibition effect and single in scale inhibition effect are solved.

Description

technical field [0001] The invention belongs to the technical field of oilfield fine chemicals, relates to a barium sulfate scale inhibitor for oilfields, and also relates to a preparation method of the barium sulfate scale inhibitor for oilfields. Background technique [0002] In the process of oil and gas field development, scaling is a major problem encountered in the process of secondary oil recovery. Since most of the injected water is treated oilfield produced water, there may be chemical incompatibility with formation water. When the injected water enters the reservoir , the reaction between incompatible ions is easy to cause scaling. In addition, the temperature, pressure, pH value and other conditions of the injected water change, which destroys the balance between the phases of the reservoir, resulting in complex chemical reactions between the water and the reservoir. , can also cause fouling. The scaling process can occur in various places such as reservoirs, pip...

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): C02F5/12C02F5/10
CPCC02F5/12C02F5/10
Inventor 邱哓翠王逵张保利向礼勇樊博强刘磊樊亮亮郭强周娟
Owner 陕西延长石油油田化学科技有限责任公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com