Properties and Application:

Modified starch for drilling Fluids ( JJ-770) is a kind of water-soluble products.

It is prepared through reaction of carefully chosen starch and the active with specific functional groups under the condition of catalyst.

The product has a strong capability of filtration control,and can significantly reduce the loss of fresh water mud and salt water mud.Besides, it has excellent temperature resistance, the maximum temperature reached 130 degrees, thus it can be used in deep well with high temperture toreplace CMC. It is also featured with good rheological property andanti-collapse property, and it has good compatibility with other treating agents common used in oilfield, no poison and no pollution.

Recommended dosage:

0.5%-1% of the total amount of fresh water;1%-2% of salt water.

Packing and storage:

The solidproducts are packed in kraft paper bag with inner plastic bag, with each bagcontaining 25 kgs.