Filtrate loss reduction composition, filtrate loss reducer, and preparation method and application of filtrate loss reducer

A technology of fluid loss control agent and composition, which is applied to drilling compositions, chemical instruments and methods, etc., can solve the problems of abnormal rheology of drilling fluid system, increase of fluid loss, and decrease of electrical stability, etc. Improve high temperature emulsion stability and filtration performance, solve the increase of filtration loss, and improve the effect of stability

Pending Publication Date: 2021-12-17
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a fluid loss control composition, a fluid loss control agent and a preparation method and application of the fluid loss control agent, to solve the problem in the prior art of deep wells and ultra-deep wells with strict environmental requirements. Problems of abnormal rheology, decreased electrical stability and increased fluid loss of drilling fluid system caused by pyrolysis of fluid loss agent

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
  • Filtrate loss reduction composition, filtrate loss reducer, and preparation method and application of filtrate loss reducer
  • Filtrate loss reduction composition, filtrate loss reducer, and preparation method and application of filtrate loss reducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Firstly, 320 parts of oleic acid and 60 parts of diethylenetriamine were sequentially added into the reactor, and the temperature was raised to 165°C under constant stirring, and the dehydration condensation reaction was carried out for 3 hours to obtain the first post-reaction system. Then add 200 parts of triethylene glycol monobutyl ether and 150 parts of humic acid to the system after the first reaction, and continue to carry out the dehydration condensation reaction at 165 ° C for 3 hours. The finished fluid loss agent is denoted as fluid loss agent A.

Embodiment 2

[0037] Firstly, 160 parts of oleic acid and 50 parts of diethylenetriamine were sequentially added into the reactor, and the temperature was raised to 165°C under constant stirring, and the dehydration condensation reaction was carried out for 3 hours to obtain the first post-reaction system. Then add 180 parts of triethylene glycol monobutyl ether and 100 parts of humic acid to the system after the first reaction, and continue to carry out the dehydration condensation reaction at 165 ° C for 3 hours. The finished fluid loss agent is denoted as fluid loss agent B.

Embodiment 3

[0039] Firstly, 320 parts of oleic acid and 80 parts of diethylenetriamine were sequentially added into the reactor, and the temperature was raised to 165°C under constant stirring, and the dehydration condensation reaction was carried out for 3 hours to obtain the first post-reaction system. Then add 240 parts of triethylene glycol monobutyl ether and 170 parts of humic acid to the system after the first reaction, and continue to carry out the dehydration condensation reaction at 165 ° C for 3 hours. The finished fluid loss agent is denoted as fluid loss agent C.

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
densityaaaaaaaaaa
Login to view more

Abstract

The invention provides a filtrate loss reduction composition, a filtrate loss reducer and a preparation method and application of the filtrate loss reducer. The filtrate loss reduction composition is prepared from the following components in parts by weight: 160-320 parts of oleic acid, 50-80 parts of diethylenetriamine and 100-170 parts of humic acid. When the filtrate loss reducer formed by the high-molecular polymer is applied to drilling fluid, the filtrate loss of the drilling fluid can be controlled, and the stability of a well wall can be improved. The probability that the performance of a drilling fluid system becomes poor due to the fact that the filtrate loss reducer is decomposed in the using process of the high-temperature drilling fluid is reduced. Especially for a high-temperature-resistant gas-to-oil synthetic base drilling fluid system with relatively high requirement on the environmental protection property of a treating agent, the filtrate loss reducer is beneficial for improving the high-temperature emulsion stability and filtrate loss reduction performance of the high-temperature-resistant gas-to-oil synthetic base drilling fluid system. Therefore, the problems that the performance of a high-temperature-resistant gas-to-oil synthetic base drilling fluid system is reduced and the filtrate loss is increased are solved. The formula is simple, the raw materials are cheap and easy to obtain, and the production cost is low.

Description

technical field [0001] The invention relates to the field of petroleum exploitation, in particular to a fluid loss control composition, a fluid loss control agent and a preparation method and application of the fluid loss control agent. Background technique [0002] In recent years, with the continuous increase of energy demand at home and abroad, oil exploration and development have gradually drilled into deep and complex formations, and the number of complex wells such as deep wells, ultra-deep wells, highly deviated wells, multi-branch wells, and horizontal wells is increasing. In addition to the development of unconventional oil and gas resources, the demand for oil-based, especially environmentally friendly gas-to-oil synthetic-based drilling fluids is gradually increasing. The gas-to-oil synthetic base drilling fluid system is a new type of drilling fluid system with environmental protection characteristics. It not only has the high temperature resistance, salt and cal...

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): C08H7/00C09K8/035C09K8/32
CPCC08H6/00C09K8/035C09K8/32
Inventor 王茂功肖海成王宗宝彭洁张蝶
Owner BC P INC CHINA NAT PETROLEUM CORP
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