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

Biomass lubricant for drilling fluids, and preparation method thereof

A biomass and drilling fluid technology, which is applied to drilling compositions, chemical instruments and methods, etc., can solve the problems of drilling fluid foaming, unenvironmental protection, and difficulty in dispersion, and achieves low cost, simple process, and environmentally friendly preparation process. Effect

Active Publication Date: 2019-04-23
中石化石油工程技术服务有限公司 +1
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some are mixed with crude oil, white oil and other mineral oils in the drilling fluid, which is not environmentally friendly; some decompose and fail when the pH of the drilling fluid is higher than 10; some make the drilling fluid foam; some are difficult to disperse in salt water, etc.

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
  • Biomass lubricant for drilling fluids, and preparation method thereof
  • Biomass lubricant for drilling fluids, and preparation method thereof
  • Biomass lubricant for drilling fluids, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] The present invention also provides a preparation method of the biomass lubricant for drilling fluid described in the above technical scheme, comprising the following steps:

[0049] a) reacting the front fraction of natural fatty alcohol, organic acid and lipase catalyst to obtain biomass base oil;

[0050] b) mixing the biomass base oil obtained in step a) with an ionic liquid anti-wear agent, an emulsifier, a defoamer, a viscosity raising agent and water to obtain a biomass lubricant for drilling fluid.

[0051] In the present invention, firstly, the first part of natural fatty alcohol, organic acid and lipase catalyst are reacted to obtain biomass base oil. In the present invention, the front fraction of the natural fatty alcohol preferably includes one of the front fraction of palm oil natural fatty alcohol, the front fraction of soybean oil natural fatty alcohol and the front fraction of rapeseed oil natural fatty alcohol or more, more preferably the front fracti...

Embodiment 1

[0065] (1) Preparation of biomass base oil:

[0066] In an airtight container equipped with a condensation tube, add successively the front fraction of palm oil natural fatty alcohol, acetic acid and Candida rugosa lipase with a molar ratio of 1: 1: 0.02n (n is the content of palm oil natural fatty alcohol) The molar weight of hydroxyl groups in the previous fraction), under the stirring speed of 100r / min, heated to 30°C for 6h, cooled to room temperature, and took out to obtain biomass base oil.

[0067] According to the method of "The mensuration of nonionic surfactant hydroxyl value" (GB / T 7383-1997), the hydroxyl group (-OH) in the front fraction of palm oil natural fatty alcohol is titrated, thereby determine the numerical value of n, After determination, the molar weight n of hydroxyl groups in the fore fraction of palm oil natural fatty alcohol is 0.31 (the same below).

[0068] (2) Preparation of biomass lubricant:

[0069] According to the percentage by weight of ra...

Embodiment 2

[0071] (1) Preparation of biomass base oil:

[0072] In a closed container equipped with a condensing tube, sequentially add the front fraction of soybean oil natural fatty alcohol, butyric acid and Candida antarctica lipase (n is the content of soybean oil natural fatty alcohol) in a molar ratio of 1:1:0.05n The molar weight of hydroxyl groups in the previous fraction), under the stirring speed of 300r / min, heated to 50°C for 12h, cooled to room temperature, and took out to obtain biomass base oil.

[0073] It was determined that the molar amount n of hydroxyl groups in the front fraction of soybean oil natural fatty alcohol was 0.27.

[0074] (2) Preparation of biomass lubricant:

[0075]Prepare raw materials according to percentage by weight, successively with the biomass base oil that 30% step (1) obtains, 5% [EEM][EP] ionic liquid anti-wear agent, 5% diacetyl tartrate monoglyceride emulsifier, 1% Add simethicone-500 defoamer, 0.1% CMC-HV viscosifier and 58.9% deionized ...

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
Ec50aaaaaaaaaa
Login to View More

Abstract

The invention provides a biomass lubricant for drilling fluids, wherein the biomass lubricant is prepared from the following raw materials by weight: 15-30 parts of biomass base oil, 3-5 parts of an ionic liquid anti-wear agent, 2-5 parts of an emulsifier, 0.5-1 part of an antifoaming agent, 0.05-0.1 part of a tackifier, and 58-80 parts of water, wherein the biomass base oil is prepared from the fore-distillate of natural fatty alcohol, an organic acid and a lipase catalyst, and the tackifier is high-viscosity sodium carboxymethyl cellulose. Compared with the biomass lubricant in the prior art, the biomass lubricant of the present invention contains the components with the specific contents so as to achieve good interaction, has advantages of strong lubrication, high-temperature resistance, environmental protection, no toxicity and good compatibility, and is suitable for special drilling operations of as large displacement wells, inclined wells, horizontal wells and the like, especially for oil and gas wells with deep reservoirs, high temperature and high pressure.

Description

technical field [0001] The invention relates to the technical field of oil and gas well exploitation, and more specifically relates to a biomass lubricant for drilling fluid and a preparation method thereof. Background technique [0002] Nowadays, with the expanding field of petroleum exploration and development, the drilling strata are deepening, the drilling methods are constantly being renovated, and the difficulty of drilling is also increasing year by year. Deep wells, ultra-deep wells, directional wells, horizontal wells, extended There are more and more wells with special conditions such as long open hole wells, and the drilling speed needs to be greatly increased. The drilling fluid lubricant can reduce the friction between the well wall and the drilling tool, the drilling tool and the casing, reduce the downhole complex situation, and increase the drilling speed. Therefore, the use of the drilling fluid lubricant is a method to solve these complex problems. [0003...

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): C09K8/035
CPCC09K8/035C09K2208/34
Inventor 单海霞王中华徐勤周亚贤张鑫李彬
Owner 中石化石油工程技术服务有限公司
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com