Pre-crosslinked bulking agent

1. Characteristics of pre-cross-linked bulking agent: The pre-cross-linked bulking particle profile control agent is a mixture of gray-green or brown solid particles and powder. This product can be used for profile control of water wells and water plugging of oil wells.

1. It swells in the presence of water, and is used in combination with cross-linking agent, stabilizer and coagulant to generate a high-viscosity gel water blocking agent;

2. Good adhesion, can carry various solid proppants (such as calcium carbonate powder, bentonite, etc.) during use to increase the strength of the plugging agent, and will not plug in the well after plugging;

3. There are no special requirements for water, tap water, reuse water, groundwater can be used, no need to adjust the pH value of acid and alkali, it is in the neutral range, has no corrosion to equipment and pipelines, and has good adaptability to the formation;

4. The gel time is adjustable, the gel viscosity is good, the strength is good, the blocking agent does not vomit under the pressure of 10Mpa, and it can be blocked and solved, and the formation will not be polluted after blocking;

5. The gel speed can be controlled by the amount of cross-linking agent, and the gel time can be from 4 hours to 3 days, which can realize large-dose scale profile control of water injection wells;

6. The larger the profile control scale, the larger the injected water volume, the better the effect, the longer the excellent effect period, and the less and better the channeling flow of water or oil-displacing agent. The gel time is shortened accordingly, and the gel section can be adjusted to a suitable gel speed when entering the well. After the well injection is completed, the well can be closed for one week and the well can be opened for production;

7. Operating temperature range (20-120), good thermal stability, toxin detection, easy to prepare and not affected by seasonal temperature, construction can be done all year round, and full well or layered water plugging can be used during construction.

2. Product technical indicators

3. Packaging and storage: three-in-one kraft paper bag, net weight 25kg/bag, stored in a dry and ventilated place.