Product Name: Unidirectional Pressure Sealing Agent
Appearance: Grey yellow/brown free flowing powder, loose and uniform powder
Product attributes: Water based drilling fluid shielding temporary plugging treatment agent, which has multiple functions including pore micro crack sealing, improving mud cake, and reservoir protection
Water solubility: dispersed in water-based drilling fluid system
Sample tip: Seed glass bottles are laboratory display samples, while bulk orders are packaged in industrial bags
Storage conditions: ventilated, cool and dry storage, strictly prevent moisture
Shelf life: 24 months with intact sealing
 
Material Description
A composite powder made by compounding various modified natural fibers with rigid filling particles, with a reasonable particle size distribution. Under the action of positive pressure difference, a dense shielding temporary blocking layer can be formed on the surface of the wellbore; Under reverse pressure conditions, the sealing layer can be unblocked, achieving the effect of protecting oil and gas reservoirs.
 
Core selling point
1. Unidirectional pressure differential temporary blockage, positive blockage, reverse can be released, protecting oil and gas reservoirs
2. Adapt to porous and microfractured formations to effectively suppress the invasion of filtrate into the reservoir
3. Optimize the density of the mud cake, reduce filtration loss, and assist in stabilizing the wellbore
4. Do not damage the original rheological properties of the drilling fluid, and do not increase viscosity or shear
5. Excellent compatibility, can be used in combination with various water-based drilling fluid treatment agents
6. Controllable dosage, convenient construction, and reduced risk of reservoir damage
 
Product Advantages
-The particle size distribution is reasonable, and a low-permeability shielding layer is quickly formed on the wellbore under positive pressure difference, blocking the invasion of drilling fluid filtrate and solid phase into the oil and gas reservoir. After perforation operation, the blockage can be resolved without affecting later production.
-The outstanding sealing effect for leakage in porous sandstone and micro fractured formations reduces the complexity of underground leakage.
-Improve the structure of the mud cake, make it dense and smooth, assist in reducing filtration, and stabilize the wellbore.
-After addition, it has little effect on the viscosity and shear force of water-based drilling fluid, and does not disturb the original properties of the mud.
-Good temperature resistance, suitable for most medium and deep well operating conditions, and easy on-site maintenance.
 
Usage
1. It can be used alone or in combination with other water-based drilling fluid treatment agents.
2. Add the system in advance before encountering the oil and gas target layer during drilling; If there is a leaking formation, it can be supplemented in sections according to the leakage situation.
3. It is recommended to refer to the working conditions for the recommended dosage on site. It is suggested to conduct indoor trials to determine the optimal dosage before on-site deployment.
4. Normal circulation mixing and sufficient dispersion can be used for drilling operations.
 
Storage precautions
Sealed and moisture-proof, avoiding exposure to sunlight and rain; Use up as soon as possible after opening; Wear dust-proof protective equipment during operation.