Oil and Gas Fields

Oil and Gas Industry — Expert in Full-Chain Solid-Liquid Separation and Water Purification

In the oil and gas industry, the efficiency and cost of solid-liquid separation directly impact production safety and environmental compliance across drilling, fracturing, and produced fluid treatment. Our range of flocculant products offers precise, efficient, and cost-effective separation solutions for the complex oil-water-solid three-phase systems encountered throughout the "drilling-extraction-transport" process in upstream operations.

1. Drilling Waste Fluid Treatment: Solving the Purification Challenge of Highly Stable Mud

The waste drilling mud and filtrate generated during drilling operations contain large amounts of fine rock cuttings, clay colloids, and petroleum hydrocarbons, existing in a highly stable colloidal state that makes natural settling extremely difficult.

Solution:  We offer a composite formulation combining "inorganic coagulants (such as polyaluminum chloride, PAC) with organic high-molecular flocculants (such as cationic polyacrylamide, CPAM)." The strong electrostatic neutralization of PAC rapidly disrupts colloidal stability, while the ultra-long molecular chains of CPAM enable efficient adsorption and bridging, aggregating fine particles into dense, large flocs for rapid sedimentation.

Customer Value:

High purification efficiency: In complex wastewater treatment, the combined solution achieves a COD removal rate of up to 97%, significantly reducing the load on subsequent treatment processes.

Fast solid-liquid separation: rapid floc settling significantly shortens processing time and improves operational efficiency.

High adaptability: The formulation and dosage can be flexibly adjusted according to the characteristics of drilling waste fluids in different regions and systems, ensuring stable treatment performance.

2. Fracturing flowback water treatment: achieving deep-phase separation of oil, water, and solids

Fracturing flowback water is complex in composition, containing large amounts of additives such as guar gum, thickening agents, and breaker agents, with oil components highly emulsified, making it a challenging issue in oil and gas field wastewater treatment.

Solution:  Use poly-silicic acid-polyferric sulfate with high charge density as the primary coagulant, combined with a novel cationic copolymer as a flocculant aid. The two work synergistically—first destabilizing emulsified oil through "electrostatic neutralization," then rapidly aggregating oil droplets and suspended solids via "adsorption bridging," achieving deep separation of oil, water, and solid phases.Customer Value:

Effluent quality meets standards: The optimized treatment process ensures stable suspended solids concentration at 6–8 mg/L and oil content at 3–5 mg/L, fully complying with the stringent requirements for reinjection into reservoirs.Ensure injection safety: effectively remove impurities from water to prevent clogging of reservoir pores during reinjection, thereby ensuring efficient water flooding for oil recovery.

Reduce overall costs: Optimize treatment costs by precisely selecting chemicals and controlling dosing, while ensuring water quality.

3. Produced Water and Oil-Contaminated Wastewater Treatment: Ensuring Safe Re-injection and Reducing Sludge Volume

Oil-containing wastewater separated from produced fluids, if not properly treated, can not only damage the reinjection system but also increase the disposal costs of oily sludge.

Solution: Apply the classic "coagulation (with inorganic agents such as PAC) + flocculation (with organic agents such as PAM)" process. In the front stage, coagulants rapidly neutralize the charges on the surfaces of suspended solids and oil droplets, destabilizing them. In the subsequent stage, flocculants act as bridges to aggregate the destabilized particles into large flocs, which are then efficiently removed via dissolved air flotation or sedimentation equipment.

Customer Value:

Protecting core equipment: The purified water significantly reduces suspended solids and oil content, effectively extending the service life of the reinjection system and reducing maintenance frequency.

Achieving sludge reduction: By precisely controlling the types and dosages of chemicals, the sludge generation contribution from coagulant (PAC) can be maintained at 20%–31%, while that from flocculant (PAM) is kept within 3%–8%. This significantly reduces the production of oily sludge at the source, thereby lowering environmental burdens and costs associated with subsequent disposal.