A kind of anti-high salinity type slick water drag reducing agent and its preparation method and application
A technology of salinity and slick water, applied in chemical instruments and methods, drilling compositions, etc., can solve problems such as failure to meet the requirements of flowback fluid configuration, decrease in resistance reduction rate of drag reducing agents, etc., and achieve improved salt resistance. performance, improve stability, increase the effect of rigidity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] Add monomer AM (acrylamide), SSS (sodium styrene sulfonate), 2-vinylpyridine and acryloylmorpholine to the flask at a molar ratio of 9:1:0.3:0.2, and press four Add initiator azobisisobutylamidine hydrochloride (V50) to 0.15wt% of the total mass of the monomer, mix with deionized water in the flask, fully disperse the monomer and initiator, then add deionized water again, Make the monomer concentration of the reaction system reach the reaction mass percentage, then pass through high-purity nitrogen to deoxygenate by bubbling for 30 minutes, raise the temperature to 40°C, react for 6h, cut the obtained gel into pieces and put it in an oven at 80°C to dry for 24h , and then the dried gel was put into a pulverizer to pulverize, and sieved to obtain 70-mesh particles, and the target product sample 1 was obtained. Wherein, based on the total weight of the mixture after mixing the four monomers, the initiator and water and adding water again, the total weight of the four mono...
Embodiment 2
[0035] In the flask, add AM, SSS, 2-vinylpyridine and acryloylmorpholine at a molar ratio of 9.5:0.5:0.3:0.2, and then add V50 according to 0.15wt% of the total mass of the four monomers. Mix the deionized water in the mixture, then add deionized water again, blow high-purity nitrogen gas to deoxygenate for 30 minutes, raise the temperature to 50°C, react for 10h, cut the obtained gel into pieces and dry it in an oven at 80°C for 24h , and then put the dried gel into a pulverizer to pulverize, and sieve to obtain 60-mesh particles to obtain the target product sample 2. Wherein, based on the total weight of the mixture after mixing the four monomers, the initiator and water and adding water again, the total weight of the four monomers is 35wt% of the total weight of the mixture, and the monomers are acrylamide, Sodium styrene sulfonate, 2-vinylpyridine and acryloylmorpholine.
Embodiment 3
[0037] In the flask, add AM, SSS, 2-vinylpyridine and acryloylmorpholine at a molar ratio of 9.8:0.2:0.3:0.2, and then add V50 at 0.15wt% of the total mass of the four monomers, and the flask Mix the deionized water in the mixture, then add deionized water again, blow high-purity nitrogen gas to deoxygenate for 30 minutes, raise the temperature to 45°C, react for 8h, cut the obtained gel into pieces and dry in an oven at 80°C for 24h , and then the dried gel was put into a pulverizer to pulverize, and sieved to obtain 65-mesh particles, and the target product sample 3 was obtained. Wherein, based on the total weight of the mixture after mixing the four monomers, the initiator and water and adding water again, the total weight of the four monomers is 35wt% of the total weight of the mixture, and the monomers are acrylamide, Sodium styrene sulfonate, 2-vinylpyridine and acryloylmorpholine.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size (mesh) | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
| resistance reduction rate | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More