KOSUN

分类： Industry Update

KOSUN exclusively manufacture solids control system,drilling mud solids control equipment,Oilfiled Solids Control,oil and gas drilling waste managemen

  • Existing Problems in Sludge Treatment and Disposal

    1. The target of sludge treatment and disposal is not clear.
    Sludge treatment and disposal should be aimed at “reduction, stabilization, and harmlessness”. “Recycling” is not the ultimate goal. The energy and materials in the sludge treatment and disposal process should be utilized as much as possible to achieve economic benefits, save energy and its resource value.
     
    2. The technical route is applied mechanically.
    Sludge treatment technologies mainly include sludge concentration and dehydration, aerobic digestion, anaerobic digestion, drying, composting and incineration. Sludge disposal technologies mainly include landfill (including on ground, under ground and in water) and land utilization.
     
    3. Pay attention to water, think little of sludge, and sludge treatment development lags.
    In recent years, water treatment in the field of environmental protection has developed rapidly, but sludge treatment has not improved much compared to a decade ago. The proportion of sludge that has been harmlessly treated is low, and most of the discharged sludge is still harmful to the environment, and even illegal discharge is very common.
     

    4. Sludge treatment rate is extremely low.
    More than 80% of the sludge produced by sewage treatment plants in China has not been properly disposed of.
     
    5. The sludge treatment charging mechanism is imperfect.
    China's current sewage treatment fees are relatively low, and it is still impossible to guarantee the normal operation of the sewage treatment plant. The implementation of sludge treatment and disposal fees charged into the sewage treatment fee will increase the economic burden of the payers to a certain extent.
     
    6. Sludge supervision is difficult.
    Due to the long-term neglect of sludge treatment and the intermittent nature of sludge discharge, it has caused difficulties in the sludge supervision by relevant departments.

  • Relationship between shale gas development and drilling solids control equipment

    In recent years, with the continuous development and utilization of oil and natural gas, the reserve, development and service life of domestic and foreign oil and gas energy sources become very worrying. Countries are working hard to save energy and reduce emissions and develop new energy sources. Among them, the exploration, development and utilization of shale gas as a new energy source are constantly put on the agenda.
     
    The shale gas has such advantages as long exploitation life and long production cycle. Most of the gas-producing shale has a wide distribution range and large thickness, and generally contains gas, which makes the shale gas well stably yields gas for a long time. However, the shale gas reservoir has low permeability and is difficult to exploit. As the world's energy consumption continues to rise, energy sources, including shale gas, are getting more and more attention. Commercial development of shale gas has been realized in countries such as the United States and Canada.
     
    The exploitation pattern of shale gas is basically similar to that of oil, natural gas and coalbed methane. It is also a process of exploration, drilling, collection and utilization. The shale gas drilling also needs solids control equipment and auxiliary equipment (shale shaker, vacuum degasser, desander, desilter and centrifuge, as well as mud tank, centrifugal pump, mud agitator, etc.) for five-stage purification and recycling of mud.

  • Gazprom subsidiary will invest 516 million rubles to build new natural gas pipeline.

    According to the news of Neftegaz.RU St. Petersburg on May 7, Gazprom Mezhregiongaz will invest about 516 million rubles to build three natural gas pipelines in Pskov and Arkhangelsk.
     
    Openly bid for the construction of two natural gas pipelines in Pskov and a natural gas pipeline in Arkhangelsk. The initial cost of the project is 5.16 million rubles.
     
    Within one year, the contractor must build a gas pipeline with a total length of 6km for three gas rooms in Nevers, Pskov. Within one year, a 15km natural gas pipeline will be built near the village of Holkovo in Arkhangelsk. Within two years, a natural gas pipeline with a total length of 36km from the natural gas distribution station in Novoskolniki to Nazimovo, Nasva and Pskov will be constructed.

  • The soil remediation still has a long way to go.

    Recently, safety, quality and safety issues and disputes caused by soil have emerged in an endless stream, which has gradually threatened our physical and mental health and social stability. According to the "National Soil Pollution Status Survey Bulletin" jointly issued by the former Ministry of Environmental Protection and the Ministry of Land and Resources in 2014, there are 320 seriously polluted areas in China, about 5.48 million hectares. According to the report of “China Land and Resources News” in 2015, the proportion of heavy metals exceeding the standard level accounted for 8.2% among the 1.386 billion mu of cultivated land in the surveyed area.
     

    In recent years, China has gradually recognized the necessity of soil remediation, and corresponding measures have been continuously introduced. On September 25, 2017, the “Management Methods for Soil Environment in Agricultural Lands” clearly defined such activities as soil pollution prevention, soil pollution status survey, environmental monitoring, environmental quality classification, and systematic management. On May 3, 2018, the "Management Methods for Soil Environment of Industrial and Mining Lands (Trial)" was released. On August 31, 2018, the Fifth Session of the Standing Committee of the 13th National People's Congress passed the “Soil Pollution Prevention and Control Law of the People's Republic of China”, which was officially implemented on January 1, 2019. This law is a special law in the field of soil pollution control, filling the legislative gap in the field of environmental protection, especially soil pollution prevention.
     

    These laws have promoted the improvement of the technological levels of enterprises, and the enterprises with technological competitiveness will have more development prospects. Relevant industry insiders indicate that the market space for soil remediation has been opened and the industry is expected to be stable. Some analysts predict that from 2019 to 2020, the market investment in soil remediation is expected to rise to CNY198 billion, far beyond the imagination of atmosphere and water pollution control.

  • Oilfield drilling waste mud treatment requires better methods and processes

    Drilling mud is a kind of solid contaminant produced during oil well exploitation. It is a complex multiphase system containing mineral oil, phenolic compounds and heavy metals, and its leachate is highly toxic. Oilfield drilling production produces a large amount of waste mud every day. Direct discharge of drilling waste mud will affect the nutrient environmental conditions and quality of crop growth. Its long-term accumulation will cause serious damage to surface vegetation, pollute soil and water source, and endanger human survival. Therefore, in addition to the safety engineering needs to be paid attention to in the treatment of oilfield drilling waste mud, better methods and processes are required for the subsequent treatment of waste mud.
     

    During the oil and gas exploitation and drilling process, a large amount of drilling mud is produced. The drilling waste mud is relatively complex in composition, mainly consisting of multiphase suspended solids composed of clay, weighting materials, various chemical treatment agents, sewage, sump oil and cuttings. Due to the variety of chemical treatment agents used in the drilling process, the waste mud has high COD, deep color, high pH value, and more heavy metal ions and other harmful substances exceeding the standard. With the improvement of people's living standards and the enhancement of environmental awareness, the harm and impact of drilling waste mud on the environment are receiving much attention. This has become an environmental problem that has long plagued the oil and natural gas exploitation industry. Many countries have listed it as an important project for environmental protection. With the increasingly strict national emission reduction requirements, the research on the harmless technology of drilling waste mud has become an urgent problem in the environmental protection of China's petroleum industry.

  • Comprehensive Comparison of Main Methods of Oil Sludge Treatment

    Oil sludge treatment technology has developed rapidly in recent years, and some new treatment technologies have emerged. In addition, new national policies attach great importance to environmental protection, and recently, there have been companies that specialize in the treatment of oil sludge (including equipment and technical services) in China. In the future, the oil sludge treatment technology will be more perfect. This text will briefly explain the various feasible oil sludge treatment technologies.
     

    I. Physical method
    1. Direct landfill
    2. Solvent extraction technology
    3. Solidification treatment technology
    4. Injection formation treatment technology
     
    II. Chemical method
    1. Hot water washing treatment technology
    2. Incineration treatment technology
    3. Thermal cracking technology
    4. Electrochemical treatment technology
     
    III. Comprehensive method
    1. Chemical thermal washing biological method
    2. Tempering centrifugal dehydration method
    3. Tempering separation + incineration technology
     

    IV. Biological method
    The land farming method, the composting method, and the sludge bioreactor method all belong to biological treatment technologies. Since the 1980s, biological treatment methods have become more popular. Efficient microbes are the main goal of many researchers, leading to the birth of many high-efficiency strains, and the treatment scope has been broadened accordingly. Galleg proposed a method for treating oily sludge using a combination of various microorganisms. Sood proposed a method for degrading acidic oily sludge using a new type of yeast strain TERI ASN6.

  • Study on Treatment and Disposal Process of Oily Sludge in Refinery

    Along with the accelerated consumption of natural resources, enterprises are increasingly paying more attention to waste utilization technology, and the shortage of natural resources in China is particularly serious. Therefore, the research on the waste resource utilization is even more significant in China. This text mainly introduces the production and treatment difficulties of oily sludge, the problems in the use of decanter centrifuge, and proposed countermeasures.
     

    1. Production and treatment difficulties of oily sludge
     
    1.1 Production of oily sludge
     
    1.2 Difficulties in the treatment of oily sludge
     
    2. Use of the decanter centrifuge
     
    2.1 Selection of flocculant
     
    2.2 Strong vibration in running
     
    2.3 High solid-content sludge
     
    2.4 H2S and other toxic, odor gases
     

    3. Conclusion
     
    The physical, chemical and biological treatment methods are used to systematically and comprehensively investigate the water quality characteristics, the options of outlets, the removal of oil and suspended solids, and the removal of various organic substances in refinery chemical wastewater. The conclusion is as follows: Although there are many factors affecting the removal rate of organic matter in refinery chemical wastewater, through the comprehensive renovation and expansion of the sewage treatment plant, as long as key links, such as the influent water quality, alkalinity, dissolved oxygen, sludge concentration and nitrogen and phosphorus concentrations, are strictly controlled, the removal rate of organic matter and the quality of effluent water can be improved, and the degree of environmental pollution can be reduced.

  • Introduction to advanced oily sludge solidification remediation technology: SD-IV aerobic biological solidification remediation technology

    1. Principle Introduction
    SD-IV aerobic bioremediation technology is a bioremediation product technology developed by Beijing ShiDou Environment Technology Co., Ltd. It represents a safe, effective and economical method of soil management and represents the leading technology level of refractory organic contaminated soil remediation technology. Since its application, it has successfully treated over ten thousands of tons of soil, oily sludge, sediments and other solid wastes in combination with different construction technologies. SD-IV has treated several contaminated sites containing a variety of aliphatic hydrocarbons, polycyclic aromatic hydrocarbons, phthalates and chlorophenols (including pentachlorophenol).
     

    The SD-IV implementation process is as follows: the chemicals are added to the target area according to a certain ratio, and the mixing plant is used to thoroughly mix the chemicals and the contaminated soil, appropriately supplement a certain amount of water, and perform aeration, tillage, water replenishing, etc. at appropriate cycles, maintain the living conditions of aerobic microorganisms until the target of remediation is achieved.
     

    2. Technical Advantages
    (1) It can usually be used without excavation, and no odor or leachate will be produced when it is implemented;
    (2) The typical application dosage is 1-5%, which will not cause soil swelling;
    (3) It can improve the water holding capacity of soil;
    (4) It can provide a wide range of major, minor and micro nutrient elements.

  • Sinopec has ascertained a 100 billion-level gas field in Sichuan!

    Weirong shale gas field was awarded China's “Top Ten Geological Prospecting Achievements in 2018”, with proven reserves of 124.7 billion cubic meters in 2018, and one billion cubic meters of capacity will be achieved this year; Dingshan-Dongxi Block Dongye Deep 1 Well test obtained a high-yield gas flow of 310,000m3 per day.


     
    The shale gas resources in Sinopec exploration area are rich, and the exploration and development potential is large, mainly distributed in southern Sichuan and western Chongqing, with a total area of ​​nearly 20,000km2. For many years, Sinopec Southwest Oil and Gas Branch and Exploration Branch have been committed to shale gas exploration and development.


     
    Among them, Weirong shale gas field is located in Neijiang City and Zigong City of Sichuan Province. In 2015, Sinopec Southwest Oil and Gas Branch tested industrial gas flow at Weiye 1HF well. In 2016, the Southwest Oil and Gas Branch promoted the integration of exploration and development and discovered the shale gas reservoir of the Wufeng Formation-Longmaxi Formation of the Weirong shale gas field. In 2018, the gas field possessed a total of 124.7 billion cubic meters of proven reserves, marking Sinopec's breakthrough in the field of deep shale gas.


     
    Recently, Weiye 43-5HF well of Sinopec Weirong shale gas field is successfully drilled to 5610m, the quality reservoir drilling rate was 100%, and the first phase production capacity of Weirong shale gas field has been fully developed. 44 wells have been drilled in the area, and 12 wells have been drilled. Key pivotal pipeline projects, 35kV power supply project, and access road infrastructure project are proceeding in an orderly manner.


     
    In the Dingshan-Dongxi block, Sinopec's deep shale gas research and test well, Dongye Shen 1 well, was able to obtain a high-yield gas flow of 310,000m3 per day in a high-quality shale gas reservoir with a depth of 4,270m. This is the first high-yield shale gas well in China with a depth of more than 4,200m. It has broken through the fracturing technology of shale gas wells with a depth of more than 4,000m, laying a technical foundation for large-scale commercial development of deep shale gas.


     
    At the same time, Dingye 4 well and Dingye 5 well deployed in the block have successively obtained a high-yield shale gas flow of 200,000m3 and 160,000m3 in the high-quality shale gas layer of 4,000m deep. It is proved that the shale gas layer of the Wufeng Formation-Longmaxi Formation of the Dingshan Formation has characteristics of high pressure and rich gas, and has great potential for commercial development. It is another 100 billion-level cubic meters gas field after discovering Fuling and Weirong shale gas fields.

  • Kuwait’s energy consumption has reached an all-time high.

    According to the Arab Times website on April 14, 2019 in Kuwait City, Kuwait’s independent oil analyst Kamal Al-Harami said in an interview with media reporters that Kuwait’s daily energy consumption has reached a record high of 700,000 barrels, of which the daily consumption of natural gas is exceeding the oil consumption by 372,000 barrels, while the daily consumption of oil is 330,000 barrels.
     

    Harami said: "Kuwait's dependence on oil is gradually decreasing. We are importing more natural gas from all over the world faster than the growth rate of our population."
     
    He said: "Kuwait's energy bills are increasing, and the annual subsidies for energy are close to $3 billion. There are no real plans or any serious attempts to reduce our energy consumption."
     
    However, in most Arab Gulf countries, such as Saudi Arabia, oil consumption is rising. Saudi Arabia's daily energy consumption exceeds 4.6 million barrels of oil equivalent, of which approximately 2.7 million barrels are oil and the rest are natural gas. However, Saudi Arabia is also about to increase its investment in natural gas to make natural gas as its main source of energy. The UAE and Qatar, which are mainly based on natural gas, are phasing out oil.
     

    Harami said: "Because the new refineries under construction have encountered some difficulties for the Kuwaiti oil industry in the production investment of fuel oil, Kuwait is increasingly dependent on natural gas. Unless the Kuwaiti government and the parliament make a courageous joint decision on reducing its national energy bill, Kuwait’s energy consumption will not decrease."