Water base fracturing and blocking-removing composite process
A composite process and water-based fracturing technology, which is applied in the direction of drilling composition, production fluid, wellbore/well components, etc., can solve the problems of increasing construction unsafety, affecting the effect of plugging removal, and decreasing the use concentration. Achieve the effect of wide range of blocking, effective effect of blocking, and reduction of damage
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0024] Example 1
[0025] Step 1. Add the composite plug-removing agent HRS into the water, mix well, and then add the clay stabilizer potassium chloride and the demulsification aid CF-5C (produced by the Changqing Underground Chemical Plant in Qingyang, Gansu Province) in sequence, and then add it after stirring evenly Hydroxypropyl guar gum was stirred for 10 minutes to obtain a raw gum solution; the mass concentration of hydroxypropyl guar gum in the raw gum solution was 0.1%, the mass concentration of clay stabilizer was 0.5%, and the mass concentration of demulsification aid drainage aid was 0.1%, the mass concentration of the composite plug-relief agent HRS is 0.1%;
[0026] Step 2. Mix the raw glue solution and the cross-linking agent in the step one in a volume ratio of 100:6 and stir uniformly to obtain a fracturing fluid; the cross-linking agent is a mixed aqueous solution of sodium tetraborate and ammonium persulfate, The mass concentration of sodium tetraborate in the ...
Example Embodiment
[0028] Example 2
[0029] Step 1. Add the composite plug-removing agent HRS into the water, mix well, and then add the clay stabilizer potassium chloride and the demulsification aid CF-5C (produced by the Changqing Underground Chemical Plant in Qingyang, Gansu Province) in sequence, and then add it after stirring evenly Hydroxypropyl guar gum was stirred for 20 minutes to obtain a raw gum solution; the mass concentration of hydroxypropyl guar gum in the raw gum solution was 1%, the mass concentration of clay stabilizer was 2.5%, and the mass concentration of demulsification aid drainage aid was 1%, the mass concentration of the composite plug-relief agent HRS is 0.5%;
[0030] Step 2. Mix the raw gum solution and the cross-linking agent in the step one at a volume ratio of 100:10 and stir to obtain a fracturing fluid; the cross-linking agent is a mixed aqueous solution of sodium tetraborate and ammonium persulfate, The mass concentration of sodium tetraborate in the crosslinking a...
Example Embodiment
[0032] Example 3
[0033] Step 1. Add the composite plug-removing agent HRS into the water, mix well, and then add the clay stabilizer potassium chloride and the demulsification aid CF-5C (produced by the Changqing Underground Chemical Plant in Qingyang, Gansu Province) in sequence, and then add it after stirring evenly Hydroxypropyl guar gum, stirring for 10 minutes to obtain the original gum solution; the mass concentration of hydroxypropyl guar gum in the original gum solution is 0.3%, the mass concentration of clay stabilizer is 1%, and the mass concentration of demulsification aid drainage aid is 0.3%, the mass concentration of the composite plug-relief agent HRS is 0.2%;
[0034] Step 2. Mix the raw glue solution and the cross-linking agent in the step one in a volume ratio of 100:6 and stir uniformly to obtain a fracturing fluid; the cross-linking agent is a mixed aqueous solution of sodium tetraborate and ammonium persulfate, The mass concentration of sodium tetraborate in...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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