甲酸鉀在鉆井完井液中起主要作用的是鉀離子，且能完全離解，相同加量時(shí)，有效K濃度較氯化鉀高，無(wú)陰離子氯根的污染，其濾液表面張力明顯大于氯化鉀鉆井完井液體系，滲入地層的流動(dòng)阻力大，既抑制粘土水化分散膨脹，防止地層縮徑，又不干擾電測(cè)，腐蝕輕，同時(shí)避免了對(duì)油層的污染。

Potassium formate plays a major role in the drilling and completion fluid, and can completely dissociate. At the same dosage, the effective K concentration is higher than that of potassium chloride, and there is no anion chloride pollution. The surface tension of its filtrate is significantly greater than that of potassium chloride drilling and completion fluid system. The flow resistance penetrating into the formation is large, which can not only inhibit the hydration and dispersion of clay, prevent the formation from shrinking, but also not interfere with electrical logging. The corrosion is light, and at the same time, avoid the pollution of the oil layer.

小編今天就給大家說(shuō)說(shuō)在鉆井完井液中使用甲酸鉀的一些問(wèn)題及建議：

The editor will tell you some problems and suggestions about the use of potassium formate in drilling and completion fluids today:

(1)甲酸鉀無(wú)加量峰值，且加量越大，鉆井液粘、切越高，因此，現(xiàn)場(chǎng)宜采取甲酸鉀膠液形式加入

(1) Potassium formate has no peak dosage, and the larger the dosage, the higher the viscosity and shear of the drilling fluid. Therefore, potassium formate gel should be added on site

(2)甲酸鉀一石灰基聚磺混油鉆井完井液體系中不能存有其它陰離子(如SO、Cl等),否則將產(chǎn)生大量氣泡，而且嚴(yán)重增稠，因此應(yīng)盡量避免這些陰離子存在。

(2) There should be no other anions (such as SO, Cl, etc.) in the potassium formate-lime-based polysulfonate mixed drilling and completion fluid system. Otherwise, a large number of bubbles will be generated and seriously thickened. Therefore, the presence of these anions should be avoided as much as possible.

(3)甲酸鉀在鉆井完井液體系雖現(xiàn)場(chǎng)維護(hù)簡(jiǎn)單、方便，但加入的處理劑種類多、量大。從使用情況來(lái)看，可簡(jiǎn)化體系，刪除某些處理劑，進(jìn)一步降低鉆井液成本;

(3) Although potassium formate is easy and convenient to maintain on site in the drilling and completion fluid system, there are many kinds and quantities of treatment agents added. From the perspective of use, the system can be simplified, some treatment agents can be deleted, and the cost of drilling fluid can be further reduced;

(4)甲酸鉀易吸水結(jié)塊，甚板結(jié)，不易搗碎，無(wú)法從漏斗直接加入，給配制和加入帶來(lái)困難，增大了勞動(dòng)強(qiáng)度，建議可先聯(lián)系客服了解生產(chǎn)周期，減少板結(jié)情況。

(4) Potassium formate is easy to absorb water and agglomerate, even harden, not easy to crush, and cannot be directly added from the funnel, which brings difficulties to preparation and adding, and increases labor intensity. It is recommended to contact customer service first to understand the production cycle and reduce the harden.

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