1 产品概述（Product Overview）

油田钻井降粘剂是由多种溶剂和表面活性剂复配而成，能够溶于水基和油基，表面张力低。降粘剂通过氢键作用、离子偶极作用、疏水缔合等作用吸附在粘粒表面上，提高粘粒负电性，使其颗粒间静电斥力增大，阻碍网状结构的形成。另外，降粘剂通过吸附作用直接拆散粘粒已经形成的网状结构释放出自由水，从而起到降粘作用。与原来的油基降粘剂相比，使用安全性得到******提高。

Oilfield drilling viscosity reducers are compounded with a variety of solvents and surfactants. They are soluble in water and oil and have low surface tension. Viscosity reducers are adsorbed on the surface of clay particles through hydrogen bonding, ion dipole action, hydrophobic association, etc., which increases the negative charge of clay particles, increases the electrostatic repulsion between particles, and hinders the formation of a network structure. In addition, the viscosity reducer directly dismantles the network structure that has been formed by clay particles through adsorption to release free water, thereby playing a viscosity reducing role. Compared with the original oil-based viscosity reducer, the safety of use is greatly improved.

ZKY-405降粘剂不仅具有较好的降粘、溶解蜡质、胶质、沥青质能力，而且具有对有机沉积物的润湿、渗透、分散直至剥离的作用，同时还可以有效地预防蜡质和胶质等有机质在近井地带的再次沉积，因此施工有效期长，效果显著。

ZKY-405 viscosity reducer not only has good viscosity reduction and ability to dissolve wax, colloid, and asphaltene, but also has the function of wetting, penetrating, dispersing, and peeling organic sediments. It can also effectively prevent wax The re-deposition of organic matter such as colloid and colloid in the near-well area makes the construction effective period long and the effect is remarkable.

2 产品特性（Product Features）

l 快速降粘：能显著降低石油钻井液粘度，提高流动性。

l 稳定性好：在石油钻井液中分散均匀，不易析出。

l 耐受高温：在高温环境下仍能保持良好的降粘效果。

l 易于添加：可直接加入石油产品中，操作简单。

Rapid viscosity reduction: It can significantly reduce the viscosity of oil drilling fluid and improve fluidity.

Good stability: evenly dispersed in oil drilling fluid, not easy to precipitate.

High temperature resistance: It can still maintain good viscosity reduction effect in high temperature environment.

Easy to add: It can be directly added into petroleum products, and the operation is simple.

3 技术指标（Technical index）

表1  ZKY-405油井降粘剂的技术指标

Table 1  ZKY-405 oil well viscosity reducer technical index

添加量：根据钻井液的具体情况，一般添加量为钻井液总量的0.5%～2%。

Addition amount: According to the specific conditions of the drilling fluid, the general addition amount is 0.5% to 2% of the total drilling fluid.

添加步骤：

l 油层降粘：将本药剂与一定温度的钻井液或清水配制成1%-10%的水溶液（比例可根据现场需要进行调配），用泵车从油管或油套环空注入，然后注入钻井液或清水。

l 井筒降粘：将药剂与水配制成一定浓度的水溶液，从套管环空定期定量泵入，通过抽油泵的作用，使原油和药剂得到充分的混合，达到降粘开采目的。

l 掺水降粘：在掺水泵出口加一台注药泵，按掺水量的0.5%连续挤注药剂，达到降粘开采目的。

Add steps:

Oil layer viscosity reduction: Prepare a 1%-10% aqueous solution of this agent with drilling fluid or clean water at a certain temperature (the proportion can be adjusted according to on-site needs), inject it from the oil pipe or casing annulus using a pump truck, and then inject drilling fluid or clean water.

Wellbore viscosity reduction: The reagent and water are mixed into a water solution of a certain concentration, which is pumped into the casing annulus at regular intervals and in fixed quantities. The oil and reagent are fully mixed through the action of the oil pump to achieve the purpose of viscosity reduction.

Adding water to reduce viscosity: Add a drug injection pump at the outlet of the water injection pump to continuously inject chemicals at 0.5% of the amount of water added to achieve the purpose of reducing viscosity of mining.