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

Brine cement slurry adapted for salt hole air reserved storeroom

A technology for gas storage and cement slurry, which is applied to drilling compositions, mining devices, mining equipment, etc., can solve problems such as inability to apply, and achieve the effects of reducing contact time, ensuring cementing quality, and technically reliable

Inactive Publication Date: 2007-02-28
PETROCHINA CO LTD
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To overcome the deficiency that the existing high-temperature salt-resistant cement slurry cannot be applied to the cementing of salt-cavern gas storage in shallow low-temperature salt layers

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

[0027] Embodiment 1: The embodiment of the present invention takes the brine cement slurry suitable for salt cavern gas storage used in the existing brine mining well West 2 well in Jintan area as an example to illustrate:

[0028] 1. Basic situation of West 2 well:

[0029] (1) Mining time: 8 years

[0030] (2) Dissolving cavity volume: 16.00×104m 3

[0031] (3) Burial depth of salt layer: 925.2~1065m

[0032] (4) Thickness of salt layer: 139.8m

[0033] (5) Thickness of salt layer on cavity roof: 11.9m

[0034] (6) Φ339.7mm casing depth: 90.22m

[0035] (7) Φ311.2mm reaming drill bit Drilling depth: 933.5m

[0036] (8) Φ244.5mm casing depth: 931.2m

[0037] 2. Preparation of brine cement slurry suitable for salt cavern gas storage

[0038] G-grade cement: 5000Kg, using Jiahua brand G-grade cement.

[0039] Salt water with a concentration of 18%: 242Kg, using on-site brine.

[0040] Salt-resistant dispersant, sulfonated acetone-formaldehyde polycondensate: 85Kg;

...

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
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Densityaaaaaaaaaa
Login to View More

Abstract

The invention relates the salt-water cement mud. The mud comprises 100 parts G grade cement, 44-50 parts 15-18% salt-water, 1.2-1.8 parts salt resistance dispersing agent, 3-4 parts salt resistance filtration-reducing agent, and 0.1-0.5 parts defoaming agent. The invention also provides the technology, which has low cost and simple operation and meets other mating technology. The cement has advantages of low temperature fast coagulation, good salt resistance, high-early-strength, preference consistency, low filteration loss and good stability.

Description

Technical field: [0001] The method of the invention relates to the technical field of petroleum and natural gas engineering, in particular to the cementing cement slurry of a salt cavern gas storage. Background technique: [0002] The salt cavern gas storage is built to meet the needs of the "West-to-East Gas Pipeline" to ensure the safety of gas transmission and to meet the needs of seasonal peak regulation. In various engineering operations of salt cavern gas storage, the cementing quality is closely related to the life and long-term safe operation of the gas storage. Especially in some densely populated areas with dense water networks where the "West-to-East Gas Pipeline" builds gas storage, once a natural gas leak occurs, the consequences will be disastrous. It can be said that the quality of cementing is related to the "hundred-year plan" of the salt-cavern gas storage. [0003] The special requirements for the cementing quality of the salt cavern gas storage and the ...

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): C09K8/57E21F17/16
Inventor 齐奉忠田中兰路立君李萍袁进平何爱国
Owner PETROCHINA CO LTD
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