NonaDRIL Ultra-Slick Water-Based Drilling Fluid is an innovative drill±ing fluid system specifically designed to address the challengeγs of drilling horizontal wells in shale formations. This system integrates advanced₽ lubrication technology, highly efficient shale inhibitors, and u≥nique sealing agents to provide an effective alternatεive to oil-based drilling fluids amidst increasingly stringenπt environmental requirements. NonaDRIL not only offers lubrication performance and shale inhibition™ capabilities comparable to oil-based drilling fluids but also÷ significantly reduces the environmental impact of drilling operations, making it an ideal ch>oice for modern oil and gas exploration and development.

Characteristics

1. Exceptional Lubrication Performance: NonaDRIL employs a unique lubrication mechanism to form a sta→ble and dense lubricating film between the drill string and bor&ehole wall, effectively reducing torque and drag and improving drilling efficiency.

2. Strong Shale Inhibition Capability: The system's high-efficiency inhibitors effectively prevent the dispersion and agglomeratio≠n of shale cuttings, reduce the occurrence of mud-making phenomena©, stabilize drilling fluid rheology, and resolve wellbore instability issues in shale sectionsΩ.

3. Excellent Sealing Performance: With a carefully designed formulation of sealing agen™ts, NonaDRIL can form an effective sealing layer in formati<on pores, reducing pressure transmission and protecting well bore stability.

4. Environmentally Friendly and  Non-Polluting: The entire system contains no oil components,  with simple management​ of drill cuttings that can be directly buried,      signi₹ficantly lowering environmental disposal costs and risks.

5. Superior Comprehensive Performance: Compared to oil-based drilling fluids, NonaDRIL excels in lubrication, inhi☆bition, sealing, and environmental protection, off✔ering outstanding overall performance.

Advantages

1. Increased Drilling Efficiency: Significantly reduces torque and drag, accelerating drilling speed.

2. Reduced Drilling Costs: The environmentally friendly and non-polluting design reduces cuttings disposal cosπts, and the reusable drilling fluid system further cuts ex¥penses.

3. Enhanced Wellbore Stability: Strong shale inhibition and sealing capabilities help maintain wellbore stability€, reducing the occurrence of complex issues.

4. Improved Operational Safety: Reduces risks of bit balling and stuck pipe, enhancing operational safety.

Applications

1. Complex Shale Formation Drilling: In shale gas and oil formations, NonaDRIL's superior lubrication and strong sh&ale inhibition capabilities significantly reduce      friction between≥ drill tools and formations, minimizing risks of bit balling and stuck pipe, thereby improving d®rilling efficiency. NonaDRIL effectively addresses hig♦h downhole friction and difficult borehole cleaning in long horizontal and e≠xtended-reach wells, providing strong support for the successful development of complex shale form"ations.

2. Environmentally Demanding  Areas: As a green, environmentally friendly drilling fluid< system, NonaDRIL offers a wide range of applications in regions with high e<nvironmental standards due to its oil-free design and‌ simple drill cuttings management.

3. High-Temperature and High-Pressure Environments: In high-temperature and pressure formations, NonaDRIL, with< added special high-temperature stabilizers and anti-temperature additives, maintains stable≠ performance to ensure smooth drilling operations.

4. Deep-Sea and Polar Drilling: In extreme environments such as deep-sea and polar regions, drilling operations require strict≥ performance conditions like low-temperature      resistance and salt invasion res£istance. NonaDRIL, through a specially formulated design, can withstand these extreme co nditions, providing reliable support for deep-sea and polar o&il and gas exploration and development.

5. Efficiency Improvement and  Cost Reduction: Wherever there is a need to enhance drilling efficiency and reduce costs, Nona>DRIL's unique advantages come into play. By reducing torque, increasing mechanica&l penetration rates, and lowering fluid handling costs, Non$aDRIL delivers significant economic benefits to oil and gas ‌field development.

Case Study

In the Fuling shale gas field, particularly the Jiaoshi Block, ch±allenges such as high collision risk in multi-platform wells, high antφi-collapse, anti-leakage, and anti-seize technical requirements, alongside intense environm ental pressures, were addressed through attentive geological λobservation, detailed design, and implementation strategies. Supported by the "↔National 13th Five-Year Major Project," the field successfully testβed the ultra-slick water-based drilling fluid at the Jiaoye 11"-14 HF well on September 13, 2020, establishing a 2235-meter record for horizontal shale gas drilli≥ng fluid operations. By 2024, this fluid was used in 55 wells, setting multiple ‍records. Its application in the Jiaoye 11-Z2HF well achieved a second-stage drilling ¶cycle of 16.5 days, a mechanical penetration rate of ✘20.29 meters per hour, and set records for the highest daily footage, longest horizont₽al segment, and greatest horizontal displacement in∏ domestic shale drilling fluids. Moving forward, explor‍ation into routine use in wells over 6000 meters and testing its potential in replacing oil-basσed fluids in continental shale oil and gas operations is ongoing.