Composite lost circulation material is a proportional combination of fibrous products (such as paper, cottonseed hulls), granular materials (such as nut shells), and flaky substances (such as flaky mica).

I. Quality Indicators:

II. Characteristics

1. Fast and effective plugging of pores and micro-fracture losses.

2. Quickly forms a non-permeable barrier with certain strength to prevent the invasion of liquid and solid phases in the working fluid into the reservoir, protecting the reservoir from damage. It can be removed through perforation and flowback.

3. Significantly reduces the filtration loss of mud without affecting the rheological properties of the mud, with excellent temperature resistance.

4. Not affected by electrolyte pollution, non-toxic, and harmless.

III. Product Usage

Suitable for plugging fractures and porous formations during drilling. Better results can be achieved when mixed with other lost circulation materials.

IV. Precautions

Store in a ventilated, dry place, protect from rain and moisture. Use rainproof equipment during transportation.

V. Packaging

The product is packaged in a "three-in-one" bag with an outer woven bag and an inner plastic bag. Each bag weighs 25kg, with an allowable error of +1%. The product should be stored in a cool, dry place, protected from direct sunlight, packaging damage, and moisture.