CXL-U
一、Introduction::
CXL-U is an organic zirconium crosslinking agent, can generate high - quality gel carboxymethyl hydroxypropyl guar solution.It is at a low pH of 3.5 to 4.8, the formation of instant gel, at high pH, the temperature sensor is formed at 8.5 to 9.75 may be delayed gel, to reduce friction on the tubing or casing. Gel at low pH compatible with the formation of carbon dioxide.
二、advantage
In the larger PH window, providing high-quality gel, ease of construction design.
High temperature stability, suitable for deep and high temperature wells.
Compatibility with carbon dioxide foam.
CMHPG solution to delay crosslinking time is 2-15 minutes.
三、Index
Item | Index |
Appearance | Bright yellow liquid |
Density | 1.04~1.07 g/cm3 |
pH | 9.5~10 |
Water-soluble | Complete |
Freezing point | -5.8℃ |
Flash point | 29.4℃ |
四、Usage:
1. In the working process need to follow a certain ratio continued to add mixed
2. Recommended to test the pre-operation, in order to determine the optimum concentration of the gelling agent, CXL-U and a breaker. According to formation temperature, concentration in the 1 ~ 4gptg (1 ~ 4L / m3) range.
3 in the low pH system, the crosslinking time is about 20 seconds..
五、 Packing:
1. Package: plastic barrel, net weight 280kg ± 0.5kg.
2. Transport: during transport, care, and to avoid damage.
3. Storage: Storage ventilation to prevent exposure to date, since the production of the storage period of two years.