scholarly journals Well construction in Eastern Siberia: drilling hazards and their remedies

2019 ◽  
pp. 52-57
Author(s):  
Vasiliy A. Parfiryev ◽  
Nikolay N. Zakirov ◽  
Yuriy V. Vaganov ◽  
Alexandra E. Anashkina ◽  
Victor A. Borisenko
Keyword(s):  
Operating Time ◽  
Oil Well ◽  
Eastern Siberia ◽  
Laboratory Studies ◽  
Reservoir Properties ◽  
Geological Section ◽  
Productive Time

The article is devoted to an analysis of oil well construction at fields in the territory of Eastern Siberia. We give features of the geological section, influencing the quality of oil well construction. Particularly, we describe drilling hazards under production string, which there are in the process of posting the wellbore. Laboratory studies have helped to make function the recipe polysulfur biopolymer mud. This solution will allow increasing productive time due to reduction of repeated and emergency works on elimination of the complications connected with cavern formation, operating time of ledges in the conditions of preservation of reservoir properties.

scholarly journals Evaluación tecnológica explotativa del motocultor Dongfeng DF 151L en preparación de suelo para sembrar maíz

2020 ◽  
pp. 47
Author(s):  
Byron Leonardo Quimís Guerrido ◽  
Felipe Franco-Plaza ◽  
Carlos Loor-Guerrero ◽  
Víctor Sempertegui-Campi ◽  
Juan Quimís-Pin
Keyword(s):  
High Reliability ◽  
Operating Time ◽  
Observation Area ◽  
Palabras Clave ◽  
Maize Cultivation ◽  
Soil Preparation ◽  
Technological Evaluation ◽  
Productive Time

Exploitative technological evaluation of the Dongfeng DF 151L motor cultivator in soil preparation for sowing maize Resumen La presente investigación se realizó en la “Finca Juanito”, coordenadas 1o19’46’’ LS y 80o35’3’’ LO, cantón Jipijapa, provincia de Manabí, Ecuador.  El objetivo es determinar los índices tecnológicos, explotativos y calidad de trabajo del motocultor marca DONGFENG DF 151L con rotovator en la preparación de suelo para siembra de maíz.  Para determinación de las condiciones del área de observación y evaluación tecnológico-explotativa del motocultor DONGFENG 151L con rotovator, se utilizaron las metodologías de las normas cubanas NC 3447:2003 y NC 3437:2003    respectivamente.  Las propiedades físico - mecánicas y granulometría del suelo, mediante norma AASHTO T-88, se determinaron en laboratorios de INIAP y la UTM.  Los resultados dieron certeza que el suelo es apropiado para el cultivo de maíz, de textura arcilloso - limoso; densidad aparente 1,28 g/cm3; humedad gravimétrica 13%; y resistencia a la penetración de 1,8 MPa, lo cual sugiere que la compactación no es restrictiva y presenta buenas condiciones para el cultivo de maíz; la obstrucción por residuos de cosecha anterior fue 0,21 kg/ha.  Los índices de productividad por hora de tiempo limpio (W01); de tiempo operativo (W02); y de tiempo productivo (W04) registran valores similares de 0,04 ha/h, se consideran aceptables.  Los coeficientes de explotación alcanzaron valores cercanos e iguales a 1,0, se debe a la alta fiabilidad y seguridad técnica del motocultor.  La evaluación tecnológica explotativa del motocultor DONGFENG 151L con rotovator cumple con la exigencia agrotécnica, para el cultivo de maíz.  El ancho; profundidad; y velocidad de trabajo, registraron valores de 0,69 m ± 0,01 m; 14,6 cm ± 1,3 cm; y 1,28 km/h ± 0,06 km/h respectivamente.  Las fracciones de terrones alcanzaron valores de < 2,38 mm - 9,5 mm, adecuados para el cultivo de maíz. Mediante precipitaciones pluviales, el suelo adquirió humedad apropiada, se utilizó la herramienta manual espeque, para siembra directa de la semilla de maíz. Palabras clave: Besanas; calidad de trabajo; gasto de combustible específico; pendiente alta; productividad. Abstract This research was carried out in the "Finca Juanito", coordinates 1o19'46'' LS and 80o35'3'' LO, canton Jipijapa, province of Manabí, Ecuador. The objective is to determine the technological, exploitative and working quality indices of the DONGFENG DF 151L motor cultivator with rotovator in the preparation of soil for maize sowing.  For the determination of the conditions of the observation area and technological-exploitative evaluation of the DONGFENG 151L cultivator with rotovator, the methodologies of the Cuban standards NC 3447:2003 and NC 3437:2003 respectively were used.  The physical - mechanical properties and soil granulometry, by AASHTO T-88, were determined in INIAP and UTM laboratories.  The results gave certainty that the soil is suitable for maize cultivation, of clay - silty texture; bulk density 1,28 g/cm3; gravimetric humidity 13%; and penetration resistance of 1,8 MPa, which suggests that compaction is not restrictive and presents good conditions for the cultivation of maize; obstruction by residue from previous harvest was 0,21 kg/ha. The productivity rates per hour of clean time (W01); of operating time (W02); and of productive time (W04) record similar values of 0,04 ha/h, are considered acceptable. The exploitation coefficients reached values close to and equal to 1,0, due to the high reliability and technical safety of the motocultor. The exploitative technological evaluation of the DONGFENG DF 151L cultivator with rotovator meets the agrotechnical requirement, for the cultivation of maize.  The width; depth; and working speed, recorded values of 0,69 m ± 0,01 m; 14,6 cm ± 1,3 cm; and 1,28 km/h ± 0,06 km/h respectively.  The fractions of clods reached values of < 2,38 mm – 9,5 mm, suitable for maize cultivation.  By means of rainfall, the soil acquired appropriate humidity, and the manual tool was used for direct sowing of the maize seed. Keywords:  Besanas; quality of work; specific fuel consumption; high slope; productivity.

Invert-emulsion drilling fluids for exposing Hamakin horizon of the Vostochno-Alinskoye oil and gas condensate field

2020 ◽  
pp. 44-53
Author(s):  
V. A. Parfiryev ◽  
Yu. V. Vaganov ◽  
N. N. Zakirov
Keyword(s):  
Oil And Gas ◽  
Geological Structure ◽  
Gas Condensate ◽  
Drilling Fluids ◽  
Oil Well ◽  
Eastern Siberia ◽  
Reservoir Properties ◽  
Recovery Coefficient ◽  
Invert Emulsion ◽  
Drilling Muds

The article is devoted to an analysis of the oil well construction in the fields of the Talakan group of Eastern Siberia. The low quality of the construction of oil wells is explained based on geological structure of the reservoir and the conditions of its formation, particulary, the complications encountered during drilling are given. Based on the analysis, it was found that the use of traditional monosalt and salt-saturated drilling muds is not effective enough to simultaneously solve the problems of exposing intervals of salt deposits and high-quality primary exposing of reservoirs. Based on the literature data analysis and the experience of building the first exploratory wells in Eastern Siberia, the use of hydrocarbon-based flushing liquids is justified. As a result of theoretical and laboratory studies, the compositions of invert-emulsion drilling fluids are proposed of hydrocarbons, which are available in the conditions of fields in Eastern Siberia. The results of studies for determining the effect of flushing fluids on the reservoir properties of the V10 reservoir of the Vostochno-Alinskoye oil and gas condensate field showed that recovery of core permeability after exposure to hydrocarbon-based flushing liquid was on average 90 %, which is significantly higher compared to the effect of water-based drilling muds, where the recovery coefficient is 23 %.

ASSESSMENT OF OIL WELL PRODUCTIVITY IN LOW-PERMEABILITY RESERVOIRS IN THE FIELDS OF EASTERN SIBERIA

2017 ◽  
pp. 30-36
Author(s):  
R. V. Urvantsev ◽  
S. E. Cheban
Keyword(s):  
Oil Recovery ◽  
Large Scale ◽  
Oil And Gas ◽  
Oil Extraction ◽  
Low Permeability ◽  
Oil Well ◽  
Eastern Siberia ◽  
Development Costs ◽  
Traditional Fields ◽  
Low Permeability Reservoirs

The 21st century witnessed the development of the oil extraction industry in Russia due to the intensifica- tion of its production at the existing traditional fields of Western Siberia, the Volga region and other oil-extracting regions, and due discovering new oil and gas provinces. At that time the path to the development of fields in Eastern Siberia was already paved. The large-scale discoveries of a number of fields made here in the 70s-80s of the 20th century are only being developed now. The process of development itself is rather slow in view of a number of reasons. Create a problem of high cost value of oil extraction in the region. One of the major tasks is obtaining the maximum oil recovery factor while reducing the development costs. The carbonate layer lying within the Katangsky suite is low-permeability, and its inventories are categorised as hard to recover. Now, the object is at a stage of trial development,which foregrounds researches on selecting the effective methods of oil extraction.

APPLICATION OF THE ATP-BIOLUMINESCENCE METHOD TO ASSESS THE QUALITY OF SANITATION OF MILKING EQUIPMENT

2020 ◽  
Vol 1 (4) ◽  
pp. 468-472
Author(s):  
P.A. Popov ◽  
◽  
D.V. Gruznov ◽  
S.V. Tokarev ◽  
◽  
...  
Keyword(s):  
Dairy Farms ◽  
Laboratory Studies ◽  
Before And After ◽  
Atp Bioluminescence ◽  
Microbial Number ◽  
Proportional Relationship ◽  
The Relationship ◽  
Number Of Bacteria ◽  
Bioluminescence Method

The article presents the results of determining the relationship between the total microbial number and microbial ATP on the surface of milking equipment before and after treatment with neutral anolyte ANK-SUPER. The possibility of using the ATP-bioluminescence method to control the quality of sanitation of milking equipment on dairy farms is shown. Laboratory studies revealed a proportional relationship between the level of bacterial ATP and the number of bacteria on the surface of milking equipment before and after sanitation.

scholarly journals Lowest Instrumented Vertebra Selection to S1 or Ilium Versus L4 or L5 in Adult Spinal Deformity: Factors for Consideration in 349 Patients With a Mean 46-Month Follow-Up

2021 ◽  
pp. 219256822110091
Author(s):  
Yu-Cheng Yao ◽  
Han Jo Kim ◽  
Mathieu Bannwarth ◽  
Justin Smith ◽  
Shay Bess ◽  
...  
Keyword(s):  
Spinal Deformity ◽  
Sagittal Alignment ◽  
Adult Spinal Deformity ◽  
Operating Time ◽  
Patient Demographics ◽  
Lowest Instrumented Vertebra ◽  
Related Quality ◽  
Health Related

Study Design: Retrospective cohort study. Objective: To compare the outcomes of patients with adult spinal deformity (ASD) following spinal fusion with the lowest instrumented vertebra (LIV) at L4/L5 versus S1/ilium. Methods: A multicenter ASD database was evaluated. Patients were categorized into 2 groups based on LIV levels—groups L (fusion to L4/L5) and S (fusion to S1/ilium). Both groups were propensity matched by age and preoperative radiographic alignments. Patient demographics, operative details, radiographic parameters, revision rates, and health-related quality of life (HRQOL) scores were compared. Results: Overall, 349 patients had complete data, with a mean follow-up of 46 months. Patients in group S (n = 311) were older and had larger sagittal and coronal plane deformities than those in group L (n = 38). After matching, 28 patients were allocated to each group with similar demographic, radiographic, and clinical parameters. Sagittal alignment restoration at postoperative week 6 was significantly better in group S than in group L, but it was similar in both groups at the 2-year follow-up. Fusion to S1/ilium involved a longer operating time, higher PJK rates, and greater PJK angles than that to L4/L5. There were no significant differences in the complication and revision rates between the groups. Both groups showed significant improvements in HRQOL scores. Conclusions: Fusion to S1/ilium had better sagittal alignment restoration at postoperative week 6 and involved higher PJK rates and greater PJK angles than that to L4/L5. The clinical outcomes and rates of revision surgery and complications were similar between the groups.

scholarly journals Effect Of Preserved Seeds Using Different Botanicals On Seed Quality Of Lentil

1970 ◽  
Vol 36 (3) ◽  
pp. 381-387 ◽  
Author(s):  
A Khatun ◽  
G Kabir ◽  
MAH Bhuiyan ◽  
D Khanam
Keyword(s):  
Moisture Content ◽  
Azadirachta Indica ◽  
Seed Quality ◽  
Shoot Length ◽  
Germination Capacity ◽  
Laboratory Studies ◽  
Polygonum Hydropiper ◽  
Vigour Index ◽  
Leaf Powder

Laboratory studies were conducted with leaf powder of three plants to show the preservative effect for maintaining the quality of lentil seeds in storage. After processing and drying, seeds were preserved with different botanicals and stored them in earthen pots for eight months. Botanicals, such as whole leaf powder of neem (Azadirachta indica), dholkalmi (Ipmoea sepiara), and bishkatali (Polygonum hydropiper) were used at a dose of 5% w/w (25 g botanical per 500 g of lentil seeds). The lentil seeds were stored till next planting time and seed quality, such as moisture content, germination capacity, root length, shoot length of the seedlings and vigour index were observed. The highest values for all these characters except moisture content were significant when the seeds were preserved with neem leaf powder and bishkatali. Among three botanicals, dholkalmi was less effective. Keywords: Lentil; botanicals; storage; seed quality DOI: http://dx.doi.org/10.3329/bjar.v36i3.9266 BJAR 2011; 36(3): 381-387

Optimization of coprological studies in animals with the use of homeopathic Nux vomica 6CH

2021 ◽  
Vol 13 (47) ◽  
pp. 139-139
Author(s):  
Vladimir V Drozdov
Keyword(s):  
Intestinal Microflora ◽  
Domestic Animals ◽  
The State ◽  
Laboratory Studies ◽  
Test Quality ◽  
Non Invasive ◽  
Gastrointestinal Pathology ◽  
Animal Feces

Background: Etiology of various gastrointestinal dysfunctions varies from infections and infestations to consequences of emotional stress and errors in animals’ nutrition. Taking this variability of etiology and pathogenesis into account, a lot depends not only on completeness of homeopathic history taking but also on the quality of laboratory studies. In our experience, coprology studies are especially complicated when persistent gastrointestinal disorders were preceded by massive use of allopathic remedies. This sometimes necessitates repeated examinations. That is why our interest in having reliable results and early detection of latent indigestion made us look for non-invasive methods which could be easy to use in animals but at the same time could reveal latent gastrointestinal pathology in animals. Aims: The study was aimed to determine the effect of a homeopathic medication Nux Vomica 6CH on detection of latent gastrointestinal pathology in small domestic animals. Method: Coprology studies were performed simultaneously with the use of sedimentation method and Fulleborn method (modification of Scherbovich). Infestations were diagnosed and characteristics of patient digestion were recorded. Feces test detected: 1. Presence of endoparasites (helminths, protozoa and yeast-like structures); 2. State of intestinal microflora (presence of different species and their balance with each other); 3. Degree of food absorbency (presence or lack of undigested protein, carbohydrates and fat); 4. Presence of inedible inclusions; 5. Presence of cells (lymphocytes, erythrocytes, intestinal epithelium, tumor fragments). If animal feces tests were non-informative, then all medications (except vitally important) were discontinued and Nux Vomica 6CH twice a day twenty minutes prior to food intake was prescribed for 6 days (4 globules dissolved in 10 ml of water). Results: 4500 coprology tests were performed during 3 years in cats and dogs. About 10% of the total number of examined animals (449 patients) produced very little information about the state of gastrointestinal systems at the first examination. When these cases were analyzed, the following reasons were found: long-term use of strong drugs, significant weakening of body immune system. As a result diagnostic tests were of very little value. These animals were treated by Nux Vomica 6CH for 6 days and then repeated feces test was performed. This produced a more informative picture of the state of gastrointestinal system and enabled to determine etiology and pathogenesis of the animal condition and prescribe necessary treatment. Conclusion. In such a way, Nux Vomica 6CH homeopathic remedy promoted effective optimization of coprology studies in animals. The suggested scheme of use for Nux Vomica 6CH significantly improves feces test quality. This in turn reduces time needed to choose strategy and tactics of treatment of small domestic animals with different chronic diseases.

scholarly journals RANCANG BANGUN DAN UJI ALAT PROSES PENINGKATAN MINYAK CENGKEH PADA KLASTER MINYAK ATSIRI KABUPATEN BATANG

2012 ◽  
Vol 10 (2) ◽  
pp. 64 ◽  
Author(s):  
W Widayat ◽  
Bambang Cahyono ◽  
N Ngadiwiyana
Keyword(s):  
Essential Oils ◽  
Adsorption Process ◽  
Operating Time ◽  
Stirred Tank ◽  
First Year ◽  
Clove Oil ◽  
Product Analysis ◽  
Central Java ◽  
Low Levels

ABSTRAK Minyak cengkeh merupakan salah satu produk dari minyak atsiri yang dihasilkan oleh Kluster Minyak Atsiri di Kabupaten Batang. Permasalahan yang dihadapi saat ini adalah kadar eugenol yang rendah serta warna yang belum bisa memenuhi standar SII/EOA maupun SNI 06 2387 2006. Penelitian ini bertujuan untuk melakukan peningkatan kualitas minyak cengkeh /eugenol dengan proses adsorpsi. Hasil penelitian menujukkan bahwa: bahan minyak cengkeh belum memenuhi standar SNI 06 2387 2006 khususnya dari warna dan kadar eugenol total. Hal ini dikarenakan dalam proses masih digunakan peralatan dari besi. Minyak cengkeh dapat ditingkatkan kadar eugenol dan perbaikan warna menjadi lebih cerah (kuning) dengan penambahan asam sitrat 0,6-10%. Peralatan dengan pengadukan dapat digunakan dalam proses peningkatan minyak cengkeh. Daya yang terpasang sekitar 1 PK dan kapasitas setiap batch 20-30 kg dengan waktu operasi 60 menit dan temperatur 50oC. Kemampuan UKM di Klaster Minyak Atsiri Kab Batang Jawa Tengah dapat ditingkatkan dengan kegiatan pelatihan dan Expo hasil penelitian. Pada Tahun pertama, UKM telah melakukan kegiatan analisis produk dan perbaikan minyak cengkeh sehingga memenuhi standar SNI 06 2387 2006. Kata Kunci: minyak cengkeh, eugenol, adsorpsi, tangki berpengaduk, persentase Fe terikat ABSTRACT Clove oil is a product of essential oils produced by clusters of Essential Oils in Batang. The problem faced today is that low levels of eugenol and it color doen’t meet with SII / EOA and SNI 06 2387 2006 standard. The purpose in this research for improving the quality of clove oil / eugenol with adsorption process. The results showed that: clove oil doesn’t meet of SNI 06 2387 2006 especially at colors and total eugenol. This is because the process was used equipment from iron. The eugenol and color improving to yellow bright of clove oil by adding citric acid from 0.6 to 10%. Stirring equipment can be used to the process for increasing the quality of clove oil. Installing power of about 1 PK with batch of 20-30 kg capacity with 60 minutes operating time at 50oC. The capability of UKM at clusters of Essential Oil at Batang, Central Java can be improved by training and researching Expo. In the first year, UKM had engaged in product analysis and improvement of clove oil that meets with SNI 2387 06 2006.   Keywords: clove oil, eugenol, adsorption, stirred tank, the percentage of Fe bonded

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