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甲酸钾在石油钻井行业的应用

作为性能卓越的钻井液、完井液、修井液广泛应用于油田行业。甲酸钾应用在高密度钻井完井液体系中,取得了很好的效果。用甲酸钾配制钻井液体系,具有抑制性强、配伍性好、环境保护、油层保护等突出优点。
甲酸钾主要用于配制含水油井加注液,它能够实现高密度,并保持低粘度,提高钻井速度,延长钻头使用寿命,是石油开采技术领域的一种优质材料。
现场应用结果表明,甲酸钾抑制粘土水化分散膨胀能力强,返出的钻屑呈小圆粒状,内部呈干性。钻井液不糊振动筛,不跑浆,具有抑制性强、失水造壁性好、润滑性好、机械钻速快、成本低、经济效益显著等特点。使用甲酸钾泥浆,有利于提高聚合物稳定性,稳定页岩,降低对岩层的破坏,保证钻井、完井、油井维修处于最佳的工作状态。

As a well-performing drilling fluid, completion fluid, and workover fluid, it is widely used in the oil-drilling industry. Potassium formate is used in high-density drilling and completion fluid systems and achieves good results. The drilling fluid system prepared with potassium formate has outstanding advantages such as strong inhibition, good compatibility, environmental friendliness and oil layer protection.
Potassium formate is mainly used to prepare filling liquid for water-containing oil well. The liquid will be with high density, low viscosity. It improves drilling speed and prolong the service life of drill bit. It is a high-quality material in the field of petroleum exploitation technology.
It’s approved that potassium formate inhibits the hydration, dispersing and swelling of clay, and the drill cuttings are small granules, with the inside dry. The drilling fluid does not paste on the vibrating screen, does not void of paste, and has strong inhibiting ability, filtration properties , high lubricity, fast mechanical drilling speed, low cost and remarkable economic benefits. It improves the stability of polymers, stabilise the shale, reduce damage to rock formation by using the potassium formate slurry, and ensures an optimal working condition in drilling, completion and maintenance phase.

甲酸钾溶液含量密度对照表@25℃  Density of solution by content
含量 Content(%) 密度 Density (g/mL)
20 1.1170
25 1.1495
30 1.1865
35 1.2220
40 1.2602
45 1.3035
50 1.3750
65 1.5042
70 1.5380
75 1.5670

 

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