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

Cement permeation promoter for oil and gas well

A permeation enhancer, technology for oil and gas wells, applied in drilling compositions, chemical instruments and methods, etc., can solve problems such as poor permeation enhancement effect, poor temperature resistance, poor salt resistance, and low compressive strength of cement stone. problem, to achieve the effect of low cost, good alkali resistance and high oil phase permeability

Inactive Publication Date: 2007-10-31
SOUTHWEST PETROLEUM UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages such as poor permeation effect, poor temperature resistance and salt resistance, and low compressive strength of cement after curing.

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

[0019] Take 100g of aluminum powder produced by Sichuan Luzhou Yulong Superfine Materials Co., Ltd. that can pass through a 80-mesh (178μm) sieve, blow it horizontally into a reaction vessel at 90°C, and spray potassium permanganate into the reaction vessel at the same time. 15% aqueous solution, the aluminum powder is fully contacted with potassium permanganate aqueous solution, reacted and passivated, and then dried to obtain the required modified aluminum powder. Get modified aluminum powder 10g, be equipped with the gum rosin (can pass through 80 orders (178 μ m sieve) 30g, the 10 g produced by Xinjiang Xinxing Industrial (Group) Co., Ltd. # 40g of construction asphalt and 20g of chrysotile fiber (0.1-0.4cm in length, 4-10 in aspect ratio) produced by Sichuan Xinkang Asbestos Mine are fully mixed in a mixer to obtain the product——penetration enhancer.

Embodiment 2

[0021] Take 200g of aluminum powder produced by Sichuan Luzhou Yulong Superfine Materials Co., Ltd. that can pass through a 80-mesh (178μm) sieve, blow it horizontally into a reaction vessel at 90°C, and spray potassium permanganate into the reaction vessel at the same time. 18% aqueous solution, make the aluminum powder fully contact with potassium permanganate, passivate the reaction, and then dry it to obtain the required modified aluminum powder. Get modified aluminum powder 16g, be equipped with the gum rosin (can pass through 80 mesh (178 μ m) sieves) 56g of the gum rosin (can pass through 80 mesh (178 μm) sieves) produced by Guangxi Wuzhou Turpentine Co., Ltd. 10 # 84g of building asphalt and 44g of chrysotile fiber (0.1-0.4cm in length, 4-10 in aspect ratio) produced by Sichuan Xinkang Asbestos Mine are fully mixed in a mixer to obtain the product—permeation enhancer.

Embodiment 3

[0023] Take 80g of aluminum powder produced by Sichuan Luzhou Yulong Superfine Materials Co., Ltd. that can pass through a 80-mesh (178μm) sieve, blow it horizontally into a reaction vessel at 90°C, and spray potassium permanganate into the reaction vessel at the same time. 16% aqueous solution, make the aluminum powder fully contact with potassium permanganate, passivate the reaction, and then dry it to obtain the required modified aluminum powder. Get modified aluminum powder 12g, be equipped with the gum rosin (can pass through 80 mesh (178 μm) sieves) 32g that Guangxi Wuzhou rosin Co., Ltd. 10 # 38g of construction asphalt and 18g of chrysotile fiber (0.1-0.4cm in length, 4-10 in aspect ratio) produced by Sichuan Xinkang Asbestos Mine are fully mixed in a mixer to obtain the product——penetration enhancer.

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
lengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The cement permeation promoter for oil and gas well is compounded with gum resin 25~35 wt%, modified aluminum powder 8~12 wt%, asphalt 35~45 wt% and chrysotile fiber 16~24 wt%. It is re-compounded through treating the aluminum powder with water solution of potassium permanganate to deactivate and stoving to obtain modified aluminum powder, and mixing the modified aluminum powder with other components in the said weight proportion to obtain the cement permeation promoter. The cement permeation promoter may be re-compounded with other admixtures to form a new type of permeating cement slurry system, which is cured in the stratum condition to form oil and gas passage with certain permeation rate, high strength, high heat and salt tolerance, oil phase permeation rate higher than water phase permeation rate, stable chemical performance and for cementing well, preventing sand, blocking water, etc.

Description

technical field [0001] The invention relates to an oil and gas well cement permeability enhancer. Background technique [0002] In the process of drilling, well completion and oil production stimulation in oil and gas fields, the common cement system used after gelation produces cement stone with extremely low permeability, and its permeability is about 2×10 -5 ~1×10 -7 μm 2 between. In recent years, with the strengthening of oil and gas field development, a new type of cement system—permeable cement system has been widely used in oil and gas fields, especially in well cementing, sand control, water shutoff, etc., and has strong application value. The specific performance is in the following aspects: (1) For underbalanced drilling, because the mud cake cannot be formed on the well wall, it is more vulnerable to damage than the well hole with mud cake, and the degree of damage is more serious. With conventional cement cementing, higher density cement slurry invades and le...

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 Patents(China)
IPC IPC(8): C09K8/56
Inventor 李平汤自强熊颖陈大钧
Owner SOUTHWEST PETROLEUM UNIV
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