Discussion on the Treatment Method of ASP Flooding Produced Sewage Back Injection and Oil Displacement

2021 ◽  
Vol 11 (02) ◽  
pp. 39-46
Author(s):  
敏 袁
Keyword(s):  
Treatment Method ◽  
Oil Displacement ◽  
Asp Flooding

scholarly journals Study on the Stability of Produced Water from Alkali/Surfactant/Polymer Flooding under the Synergetic Effect of Quartz Sand Particles and Oil Displacement Agents

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 315 ◽  
Author(s):  
Bin Huang ◽  
Chen Wang ◽  
Weisen Zhang ◽  
Cheng Fu ◽  
Haibo Liu ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Quartz Sand ◽  
Produced Water ◽  
Synergetic Effect ◽  
Oil Droplets ◽  
Oil Displacement ◽  
Asp Flooding ◽  
Oil Water ◽  
Sand Particles ◽  
The Stability

With the wide application of ASP (alkali/surfactant/polymer) flooding oil recovery technology, the produced water from ASP flooding has increased greatly. The clay particles carried by crude oil in the process of flow have a synergetic effect with oil displacement agents in the produced water, which increases the treatment difficulty of produced water. The stability of produced water is decided by the stability of oil droplets in the ASP-flooding-produced water system. The oil content, Zeta potential, interfacial tension and oil droplet size are important parameters to characterize the stability of produced water. In this paper, the changes of the oil content, Zeta potential, interfacial tension and oil droplet size of ASP flooding oily wastewater under the synergetic effect of different concentrations of quartz sand particles and oil displacement agents were studied by laboratory experiments. The experimental results show that the negatively charged quartz sand particles can absorb active substances in crude oil and surfactant molecules in the water phase and migrate to the oil–water interface, which increases the repulsion between quartz sand particles, decreasing the oil–water interfacial tension. Thus, the stability of oil droplets is enhanced, and the aggregation difficulty between oil droplets and quartz sand particles is increased. With the continually increasing quartz sand concentration, quartz sand particles combine with surfactant molecules adsorbed on the oil–water interface to form an aggregate. Meanwhile, the polymer molecules crimp from the stretching state, and the number of them surrounding the surface of the flocculation structure is close to saturation, which makes the oil droplets and quartz sand particles prone to aggregation, and the carried active substances desorb from the interface, resulting in the instability of the produced water system. The research on the synergetic effect between quartz sand particles and oil displacement agents is of great significance for deepening the treatment of ASP-produced water.

EELS characterization of “Smut” layer films on steel surface prepared for chrome plating by anodic etching

1995 ◽  
Vol 53 ◽  
pp. 538-539
Author(s):  
E Y. Wang ◽  
J. T. Cherian ◽  
A. Madsen ◽  
R. M. Fisher
Keyword(s):  
Steel Surface ◽  
Surface Preparation ◽  
Treatment Method ◽  
Chrome Plating ◽  
Transmission Electron ◽  
Alloy Steels ◽  
Pre Treatment ◽  
Hard Chrome ◽  
Electron Energy Loss

Many steel parts are electro-plated with chromium to protect them against corrosion and to improve their wear-resistance. Good adhesion of the chrome plate to the steel surface, which is essential for long term durability of the part, is extremely dependent on surface preparation prior to plating. Recently, McDonnell Douglas developed a new pre-treatment method for chrome plating in which the steel is anodically etched in a sulfuric acid and hydrofluoric acid solution. On carbon steel surfaces, this anodic pre-treatment produces a dark, loosely adhering material that is commonly called the “smut” layer. On stainless steels and nickel alloys, the surface is only darkened by the anodic pre-treatment and little residue is produced. Anodic pre-treatment prior to hard chrome plating results in much better adherence to both carbon and alloy steels.We have characterized the anodic pre-treated steel surface and the resulting “smut” layer using various techniques including electron spectroscopy for chemical analysis (ESCA) on bulk samples and transmission electron microscopy (TEM) and electron energy-loss spectroscopy (EELS) on stripped films.

Continuous Positive Airway Pressure (CPAP) Therapy for the Treatment of Hypernasality: A Single Case Study

2014 ◽  
Vol 24 (2) ◽  
pp. 48-58 ◽  
Author(s):  
Lakshmi Kollara ◽  
Graham Schenck ◽  
Jamie Perry
Keyword(s):  
Continuous Positive Airway Pressure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Single Case ◽  
Treatment Method ◽  
Post Treatment ◽  
Subjective Perception ◽  
Cpap Therapy ◽  
Long Term Follow Up

Studies have investigated the applications of Continuous Positive Airway Pressure (CPAP) therapy in the treatment of hypernasality due to velopharyngeal dysfunction (VPD; Cahill et al., 2004; Kuehn, 1991; Kuehn, Moon, & Folkins, 1993; Kuehn et al., 2002). The purpose of this study was to examine the effectiveness of CPAP therapy to reduce hypernasality in a female subject, post-traumatic brain injury (TBI) and pharyngeal flap, who presented with signs of VPD including persistent hypernasality. Improvements in mean velopharyngeal orifice size, subjective perception of hypernasality, and overall intelligibility were observed from the baseline to 8-week post-treatment assessment intervals. Additional long-term assessments completed at 2, 3, and 4 months post-treatment indicated decreases in immediate post-treatment improvements. Results from the present study suggest that CPAP is a safe, non-invasive, and relatively conservative treatment method for reduction of hypernasality in selected patients with TBI. More stringent long-term follow up may indicate the need for repeated CPAP treatment to maintain results.

Surgical treatment of transmissible venereal tumor (sticker sarcoma)

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Bougherara Hithem ◽  
Boukhechem Saïd ◽  
Aguezlane Abdelaziz ◽  
Benelhadj Khouloud ◽  
Aissi Adel
Keyword(s):  
Surgical Treatment ◽  
Cancer Cells ◽  
Treatment Method ◽  
High Rate ◽  
Surgical Removal ◽  
Characteristic Appearance ◽  
Recurrent Tumors ◽  
External Genital Organs

Background: Sticker sarcoma, also called venereal sarcoma or venereal lymphosarcomatosis, is a tumor of the external genital organs in females and males. In male animals the penis and foreskin (prepuce) are affected, in the female, it happens in vagina (vagina) and labia (vulva). The diagnosis of sticker sarcoma is based on the chronic discharge, the typical locations and the characteristic appearance of the tumor. Methods: We have relied on the treatment method on the complete surgical removal of all cancer cells that we can access. Results: After surgery, we notice recurrent tumors about six months after surgical treatment, indicating the need for other treatments in addition to surgery. Conclusion: Although spontaneous regressions of sticker sarcoma are documented (with permanent immunity), chemotherapy is the treatment of choice today. Irradiation should also be effective. If the tumor is only removed surgically, there is a high rate of recurrence, and this is what happened with the case that we treated, as the tumor reappeared after less than six months.

PARENTS THERAPY SEBAGAI PENDAMPING LAYANAN KONSELING BAGI PERKEMBANGAN SEKSUAL ANAK BERKEBUTUHAN KHUSUS

2017 ◽  
Vol 9 (2) ◽  
pp. 93
Author(s):  
Ronny Gunawan
Keyword(s):  
Sexual Behavior ◽  
Special Needs ◽  
Deviant Behavior ◽  
Treatment Method ◽  
Mental Condition ◽  
Counseling Services ◽  
Children With Special Needs ◽  
Days Of Therapy ◽  
Opposite Sex ◽  
Aggressive Children

ABSTRACTChildren with Special Needs are children who have special behaviors that require guidance and special education from his parents and teachers. Like children in general, children with special needs also have the development and growth of the physical, mental, psychological and sexual. Based on the research conducted by researchers together with some teachers in individuals investigated, if the children with special needs get therapy sustained every day about sexual behavior and patterns of life, then they tend to have a positive sexual behavior, but if the therapy is not done, then they tend to a negative behavior. This study used the name Parents Therapy, in which the children with special needs who have negative sex in schools (respondents one child), as is often held his cock, embraced by aggressive children of the opposite sex therapy is given not only to their children but also their parents through counseling services. This treatment method is given for 30 days, but there are three days of therapy which is not performed as comparison changes in deviant behavior in children. The results of this therapy are very positive and significant, in which the child has calmness in his mental condition and the negative sexual behavior decreased (changed in his behavior).Keywords: Children with Special Needs, sexual behavior, Parents Therapy and counseling servicesABSTRAKAnak Berkebutuhan Khusus adalah anak yang memiliki perilaku khusus yang memerlukan bimbingan dan pendidikan khusus dari orangtua maupun guru. Seperti layaknya anak pada umumnya, Anak Berkebutuhan Khusus juga memiliki perkembangan dan pertumbuhan dari sisi fisik, mental, kejiwaan maupun seks. Dari penelitian yang dilakukan oleh peneliti bersama dengan beberapa guru pada individu yang diteliti, apabila anak berkebutuhan khusus mendapatkan terapi yang berkesinambungan setiap harinya tentang perilaku seks dan pola hidup, maka anak memiliki perilaku seks yang positif, namun apabila terapi tidak dilakukan, maka anak memiliki perilaku yang negatif. Penelitian ini menggunakan nama Parents Therapy, di mana, anak berkebutuhan khusus yang mengalami perilaku seks negatif di sekolah (responden satu anak), seperti sering memegang kemaluannya, memeluk dengan agresif anak-anak yang berlawanan jenis diberikan terapi bukan hanya pada anaknya namun juga orangtuanya melalui layanan konseling. Metode terapi ini diberikan selama 30 hari, namun ada tiga hari terapi tidak dilakukan sebagai pembanding perubahan perilaku menyimpang pada anak. Hasil terapi ini sangat positif dan signifikan, di mana anak tersebut memiliki ketenangan dalam kondisi jiwanya dan perilaku seks negatifnya mengalami penurunan (ada perubahan perilaku).Kata kunci: Anak Berkebutuhan Khusus, perilaku seks, Parents Therapy, dan layanan konseling

Modern methods of treating rosacea

2019 ◽  
Vol 1 (7) ◽  
pp. 65-71
Author(s):  
O. A. Egorova ◽  
K. A. Novikov
Keyword(s):  
Clinical Manifestations ◽  
Treatment Method ◽  
Current Data ◽  
Trigger Factors ◽  
Laser Technology ◽  
Individual Approach ◽  
Modern Methods ◽  
Methods Of Treatment ◽  
Choice Of Therapy

Presented current data on the etiology of rosacea, the main aspects of pathogenesis, clinical forms of the disease. Reflects trigger factors leading to rosacea, as well as complicating its course. Modern methods of treatment are described, including the use of new safe preparations of ivermectin and brimonidine, providing a good, lasting effect of clinical manifestations of rosacea. The role of laser technology, actively occupying a leading place in the choice of physiotherapeutic treatment method, is noted. The need for an individual approach in the choice of therapy for each patient with rosacea is emphasized.

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