Question

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随着油田采油驱替剂的不断发展，油田化学添加剂也不断的换代换代更新，不同种类及型号的产品频频问世。在采油过程中，将采出液举升到地面后，单井要加入防垢剂，采出液混合后要加入消泡剂，油水分离要加入破乳剂，水处理要加入抗沉积剂和絮凝剂，最后再把处理后的水回注。整个集输系统中要使用不同油田化学助剂，虽然药剂的加入分先后顺序，但在系统中总会有药剂的存留或部分残留。因此，这些化学剂间是否相互影响是决定药剂能否真正发挥作用的重要问题，化学添加剂的配伍性研究是不容忽视的。
本文主要针对三元采出液油水分离后，处理油相部分的几种常见化学剂进行性能及药剂间配伍性研究。试验根据相应的标准及方法对防垢剂、消泡剂和破乳剂进行性能评价，考察环境因素对药剂的影响，确定各药剂的最佳应用条件。并通过室内试验逐一对破乳剂、絮凝剂、防垢剂、抗沉积剂、消泡剂及其他药剂进行配伍性试验，找出各药剂间的配伍性规律及影响因素。
实验数据表明，防垢剂的投加量为30mg/L时效果可达到最佳，温度不宜过高，应控制在30℃；破乳剂和消泡剂的温度应在50~60℃之间；破乳剂用量应在30~50mg/L之间，最佳pH值为8；消泡剂用量应为10mg/L，pH值在10~10.5之间。由配伍实验可以看出：防垢剂和抗沉积剂都会对破乳剂的脱水速率有不同程度的抑制，消泡剂对破乳剂影响不大，絮凝剂与破乳剂有良好的配伍性；消泡剂、破乳剂和絮凝剂与防垢剂的配伍性较差，会减小防垢率；由于消泡剂难溶的特性，其他药剂对其无影响。因此实际应用时，除了要考虑药剂自身需要的条件外，药剂间的相互影响是不可忽略的问题。

Answer 1

AlphaDrive for continuous development of the agent with the oilfield, the oilfield chemical additives are constantly updating and updating updated frequently come out of different types and models of products. After the oil extraction process, the produced liquid lift to rise to the ground, the single well to join the inhibitor, defoamer to join the produced fluid mixing, oil-water separator to join the demulsifier and water treatment to join the anti-redeposition agents and flocculation agent, and finally the processing of water re-injection. The entire gathering and transportation system to use different oil field chemical additives, although the agents join the sub-sequence of, but there will always be in the system of lifetime or part of the residue of Pharmacy. Therefore, the interaction between these chemicals is to determine the pharmacy can really play a role in important issues, the compatibility of the chemical additives can not be ignored.
In this paper, mining for three yuan, liquid oil-water separator, the processing of oil phase part of several common chemicals compatibility between the performance and the pharmaceutical Test according to the standards and methods for performance evaluation of scale inhibitors, defoamers and demulsifiers to investigate the influence of environmental factors on the agents to determine the optimal conditions of the pharmaceutical. Demulsifier, flocculant, scale inhibitor, anti-redeposition agents, defoamers and other pharmaceutical compatibility test, to identify the compatibility of the law and influencing factors in the pharmaceutical laboratory experiments.
The experimental data show that the scale inhibitor dosage was 30mg / L when the effect can be achieved, the temperature should not be too high, should be controlled within 30 ° C; demulsifier and defoamer the temperature should be between 50 ~ 60 ℃; demulsifier dosage should be between 30 ~ 50mg / L, the optimum pH value of 8; defoamer dosage should be 10mg / L, pH value of between 10 to 10.5. Compatibility experiments can be seen a different degree of inhibition: scale inhibitors and anti-redeposition agents will be on the dehydration rate of the demulsifier, defoamer on demulsifiers, flocculants and demulsifiers have good compatibility; defoaming agent, demulsifier, flocculant and scale inhibitor poor compatibility, it will reduce the anti-scaling rate; defoamer insoluble characteristics, other pharmaceutical to its impact. Practical application, in addition to consider the pharmacy's own conditions, the interaction between the pharmaceutical can not be ignored.

Answer 2

With oil flooding agent for oil field development, oil chemical additive is also constantly upgrading of upgrading update, different kinds and types of products appeared again and again. In oil production process, the recovery liquid lifting to the ground, the single well to join the scale inhibitors, recovery liquid mixture to join defoaming agent, the oil-water separator to join demulsifier, water treatment to join of sedimentary agent and flocculation agent, and finally to the process after the water back to the note. The gathering and transportation system to use different oilfield chemical agents, although the elixir of order to join points, but there will always be in the system of the potion kept or part of the remaining. Therefore, these chemicals are between mutual influence is decided to agents can play an important role, chemical additive the compatibility of the study is not allow to ignore.
This article mainly aims at three yuan recovery liquid water-oil separation, processing oil phase part of several common chemical agent performance and potions compatibility between study. According to the relative test standards and methods of the scale inhibitors, defoaming agent and the performance evaluation of demulsifier, a visit to the influence of the environmental factors on agents, to determine the best application condition in the potion. And through the laboratory test each of demulsifiers, flocculation agent, and scale agent, fight sedimentary agent, defoaming agent and other reagents compatibility sexual experimentation, find out the compatibility of the sex between each drug rules and influence factors.
The experimental data show that the scale inhibitors dosing quantity of 30 mg/L can achieve the best effect when the temperature is unfavorable and exorbitant, should be controlled in 30 ℃; Demulsifier and defoaming agent temperature should be in 50 ~ 60 ℃ between; Mixed demulsifiers in 30 ~ dosage should be 50 mg/L between, best pH value for 8; Defoaming agent should be 10 mg/L, pH value in 10 ~ 10.5. The experiment can see compatibility: the scale inhibitors and resistance of demulsifier sedimentary agent will be the dehydration rate have different degrees of suppression, defoaming agent demulsifiers on the impact is not big, flocculation agent and the compatibility of the demulsifier good sex; Defoaming agent, demulsifier and flocculation agent and the compatibility of scale inhibitors the gender is poorer, will reduce the inhibition rate; Because defoaming agent undissolved characteristics, other agents to its no effect. So practical application, besides should consider elixir own needs conditions outside, drug interactions is not to be overlooked.

Answer 3

With oil flooding agent for oil field development, oil chemical additive is also constantly upgrading of upgrading update, different kinds and types of products appeared again and again. In oil production process, the recovery liquid lifting to the ground, the single well to join the scale inhibitors, recovery liquid mixture to join defoaming agent, the oil-water separator to join demulsifier, water treatment to join of sedimentary agent and flocculation agent, and finally to the process after the water back to the note. The gathering and transportation system to use different oilfield chemical agents, although the elixir of order to join points, but there will always be in the system of the potion kept or part of the remaining. Therefore, these chemicals are between mutual influence is decided to agents can play an important role, chemical additive the compatibility of the study is not allow to ignore.
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