Results Some minimal heavy metal that separated from the mixing liquid tank and container can decrease the content of Procaterol Hydrochloride when the pharmacetic liquid in the mixing liquid tank and container.
Rational wellhead sampling methods and measures for effectively controlling the quality of field fluid preparation, by which a base is provided for field application of the cross-linked polymer in Henan Oilfield with good effect.
For the influence of variable factors such as spot operational environment, fluid preparation and mixing degree, properties of the fracturing fluid are far different from those of in lab, and if without proper resolvent, it will generate bad effect on operation success, even serious reduction in oil/gas production.
The technology consists of pre-operation sample survey and spot quality control program for water-base fracturing fluid, and those included in the latter are: quality requirements for storage tank, require-ments for water to prepare the fluid, base fluid preparation technology, cross linking fluid preparation technology and monitoring technology during field using. Problems often encountered in the process of fracturing fluid preparation and their remedies are also displayed.
A diesel wetting method is deployed to prepare the solution of drilling fluid treating agent through laboratory and field tests. The result shows that the degree of polymer solution could be improved obviously for speeding up solution, avoiding generation of “fish eyes”, reducing the waste of organic high molecular polymer during the drilling fluid preparation, improving the application efficiency of treating agent.
To prepare the experimental fluid a simulation sea water of TDS=30.7 mg/L and a commercial polymer,NAPs,of M=1.092×10~7,hydrolysis degree 22%,cationic hydrophobe content 0.25%,swelling time 0.5 hour and dissolving time 2 hours are used.