Synthetic Base Drilling Fluid Service

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Overview

Using natural plant modified synthetic base oil as base fluid, it is a system with better performance than oil-based mud, comparable to water-based mud in environmental protection, and more economical than existing synthetic base mud. It has exhibit advantages in environmental protection, reservoir protection and safe field application.

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1. The modification of carbon chain makes the base oil no longer sensitive to temperature and realizes constant rheology. The pour point reaches -26 ℃, and the performance remains stable at 220 ℃.

2. No aromatic hydrocarbon, easy biodegradation, no pollution to the environment.

3. It is non-toxic and harmless, with high flash point and ignition point. Base oil does not belong to dangerous goods, so it is safer to transport, store and use.

4. Less damage to reservoirs. No corrosion to seals and rubber that attached to downhole tool, Avoid additional trips and improve the drilling efficiency.

5. The consumption of drilling fluid is small, and the solid waste arising from drilling operationis significantly reduced.

Ultra deep, HTHP wells.
Deep sea operation under large temperature variation.
Ultra large horizontal displacement.
Speed up bottleneck: high friction, high pump pressure.
More difficult: wellbore instability, salt gypsum formation, etc.
More stringent requirements of environmental protection.

Successfully field applied on 8 wells located in the southwest shale gas field, breaking 3 records:
The "one trip drilling" was successfully trial for 2318m interval, and the drilling cycle was only 16 days;
The horizontal displacement is 1500 meters , the average ROP is 9.74 m/ h, and the drilling cycle is 9.1 days, breaking the record of the average ROP and drilling cycle in Sichuan oil and gas fields;
The drilling cycle of a single well is 56 days, and refreshed the record of a single well.

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