HOME
04 JAN 2021

QNLM Proposed Protocols for Gravel Pack in NGH Production Well

Marine natural gas hydrate (NGH) is believed to be a promising alternative fossil energy. Effectively producing natural gas from marine NGH-bearing strata has attracted worldwide attentions. Solving potential geo-technical problems is the key to ensuring safe and efficient NGH exploitation, among whichsand production has been proved to be one of the main obstacles. Exploiting NGH with a horizontal well could promote gas productivity, whereas a robust sand control completion is essential to avoid uncontrollable sand production. Researchers from QNLM recently published an academic paper in the journal of Energy (IF=6.082), in which the main technical challenges of sand control with gravel packing for NGH production horizontal wells were concisely summarized. A new protocol for packing parameters optimization is proposed by QNLM Functional Lab for Marine Mineral Resources, and the influencing factors for packing efficiency were analyzed.“An extremely narrow operational window, high fluid loss ratio, and the metastable characteristics of NGH significantly increase the difficulties of packing a long-reached horizontal well in NGH-bearing strata, compared with that located in a consolidated conventional reservoir”, says Dr. LI Yanlong, the first author of the publication. A rigorous schedule and a software package were established, aiming at tackling the aforementioned challenges. The results indicate that a combination of lightweight gravel, low-concentration slurry, and viscosity reducer is the key to safely packing the NGH production horizontal wells.This research work was supported by the National Natural Science Foundation of China (Grant Number: 41976074, 42076217), and the Taishan Scholar Special Experts Project of Shandong Province (Grant Number: ts201712079).Cite: Li, Y., Wu, N., Gao, D., Chen, Q., Liu, C., Yang, D., Jin, Y., Ning, F., Tan, M. & Hu, G. (2021). Optimization and Analysis of Gravel Packing Parameters in Horizontal Wells for Natural Gas Hydrate Production. Energy, 119585.

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30 DEC 2020

QNLM 2020 Annual Academic Conference Grandly Held

Recently, QNLM 2020 academic annual conference was held in Qingdao. More than 800 outstanding marine scientific and technological talents gathered on the shore of Aoshan Bay, showcasing the extraordinary achievements of QNLM since the pilot operation, and demonstrating its commitment! Guided by major strategic tasks, QNLM organizes coordinated research on such tasks as "Transparent Ocean", "Ocean Floor Discovery", "Blue Life", "Healthy Ocean", and "Advanced Marine Instruments", in terms of basic theoretical research and key technology R&D, which made tremendous progress. This academic annual conference has 5 special report venues, a total of 99 special reports and 20 young scholars'' reports, showing the achievements of scientific research in the fifth anniversary of the operation. Over the past five years, more than 90 high-level academic papers have been published in Nature, Science and their sub-journals, and PNAS. Compared with 9 papers published in 2015, it has achieved a dramatic increase while maintaining a 30% growth rate annually. It has made a historic progress from a magnitude gap to a par with the top international marine research institutions. QNLM gathers innovative elements globally, overcomes global challenges and difficulties as the way of breakthrough, builds a global collaborative innovation network, and contributes strength and efforts to the construction of a shared marine community. Since its establishment five years ago, it has successively established the Centre for Southern Hemisphere Oceans Research and the International Laboratory for High-resolution Earth System Prediction jointly with counterparts in Australia and the US respectively, signed a contract with P.P. Shirshov Institute of Oceanology of Russian Academy of Sciences to build China-Russia Arctic Research Center, and cooperated with well-known universities in Hong Kong and Macao to build the Hong Kong-Macao Marine Research Center. QNLM is trying to build a global ocean platform to discuss the sustainable development strategy of the ocean. QNLM has organized a series of conferences such as "Global Ocean Summit", "Strengthening Marine S&T Collaborative Innovation for the Community of a Shared Future for Mankind", "Building an International Transparent Ocean Community" and other series of conferences; strived to initiate a triple-pole international scientific program on environment and climate change. QNLM acquired the right to host the "4th (2029) World Ocean Observation Conference" which is hosted every ten years. Furthermore, Academician WU Lixin ,the president of QNLM, became the first in Asia to win the American Geophysical Union (AGU) Ambassador Award, and at the same time became the first AGU fellow in China''s marine community.  Overall, the global influence of QNLM has dramatically increased. In the future, it will move forward toward a world''s first-class marine research institution and contribute to the global ocean S&T development in many areas.

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05 AUG 2020

QNLM Shares Anti-coronavirus Drug Screening Virtual Models

The year 2020 is destined to become our unforgettable memory. The sudden outbreak of the coronavirus disease 2019 (COVID-19) interrupts people’s normal life and work rhythm, and spreads very quickly. In this context, Pilot National Laboratory for Marine Science and Technology (Qingdao) (QNLM), the launching institution of the International Marine Science Popularization Alliance (IMSPA), has made immediate response and started emergency R & D tasks based on its three-dimensional structure database for marine natural products, the first in the world. QNLM has also collected molecular structure information of about 74,382 nature products that can obtain compound entities, from Ocean University of China, Peking University, Zhejiang University, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Institute of Microbiology, Chinese Academy of Sciences, Marine Biomedical Research Institute of Qingdao and many other universities and research institutes. Researchers in QNLM take the initiative to conduct virtual screening of drugs for several important antiviral targets. They plan to use the “full-chain innovative drug research and development system coupled with intelligent high-performance computing (iHPC) and biological assay” to conduct virtual screening of drugs such as molecular docking and molecular dynamics simulation for these natural product molecules, listed drugs and active ingredients of traditional Chinese medicine. WANG Xin, a scientist at QNLM, said: “Three years ago, the supercomputing Internet, QNLM''s prospective layout, was used to build a ‘marine drug screening technology system based on the coupling of iHPC and biological assay.’ Taking this advantage, the powerful computing capability will soon contribute more than 7 virtual models of anti-novel coronavirus for drug screening of 150 scientific research institutions around the world. Now some of the old drugs that have been calculated and verified have been used in the clinical treatment of COVID-19. At present, QNLM intends to include the development of antiviral drugs in marine drug development into its plan and will gradually deploy resources around the improvement of the technical system. ” To accelerate drug screening on COVID-19, QNLM has shared these target models with the world (http://ncovtarget.qnlm.ac/web/hm/lg/glg). In just a few days, nearly a hundred universities, pharmaceutical companies and research institutes in China and the world over joined the drug screening. At present, molecular docking and molecular dynamics simulation computing for the viral targets are underway. It is predicted that more than 2,000 emerging compounds will be obtained, and the biological assays at the molecular and cell level will be accelerated. QNLM will speed up the sharing of these data to advance the research and development of drugs for prevention and control of COVID-19 and make its own contribution in the fight with the virus.

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05 AUG 2020

CAI Wenju Elected as Fellow of the Australian Academy of Science

CAI Wenju, director of the Centre for Southern Hemisphere Oceans Research (CSHOR), a collaborative research partnership between QNLM and the Commonwealth Scientific and Industrial Research Organisation (CSIRO), was inducted as Fellow of the Australian Academy of Science (AAS) on 25th May 2020. Founded in 1954, AAS is a not-for-profit organisation of individuals elected for their outstanding contributions to science and research, which provides independent, authoritative and influential scientific advice, promotes international scientific engagement, builds public awareness and understanding of science, and champions, celebrates and supports excellence in Australian science. AAS Fellows are among the Australian most distinguished scientists, elected by their peers for ground-breaking research and contributions that have had a clear impact. From 1954 to 2019, there have been 824 Fellows elected to the Academy. To date, there are four AAS Fellows working in CSHOR. Dr. CAI Wenju specializes in research into global climate variability and change and his research has been published in authoritative journals such as Science, Nature and Nature Climate Change, etc. He has been actively involved in the development of a portfolio of world-class research that significantly advances the science. Dr. CAI also holds a number of other prominent titles, like Co-Chair of the CLIVAR (Climate and Ocean: Variability, Predictability and Change) Scientific Steering Group, one of the four core projects of the World Climate Research Programme (WCRP). Dr. CAI said it was an honour to be recognised for his contribution to science, which looks at modes of climate variability (such as El Niño and the Indian Ocean Dipole) and their response to greenhouse warming. He looks forward to using his Fellowship to raise awareness of the science excellence in prominent international activities that lead to important research outcomes and synergetic international research collaborations significantly contributing to scientific capability and excellence in international arena.

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04 JAN 2021

QNLM Proposed Protocols for Gravel Pack in NGH Production Well

Marine natural gas hydrate (NGH) is believed to be a promising alternative fossil energy. Effectively producing natural gas from marine NGH-bearing strata has attracted worldwide attentions. Solving potential geo-technical problems is the key to ensuring safe and efficient NGH exploitation, among which sand production has been proved to be one of the main obstacles. Exploiting NGH with a horizontal well could promote gas productivity, whereas a robust sand control completion is essential to avoid uncontrollable sand production. Researchers from QNLM recently published an academic paper in the journal of Energy (IF=6.082), in which the main technical challenges of sand control with gravel packing for NGH production horizontal wells were concisely summarized. A new protocol for packing parameters optimization is proposed by QNLM Functional Lab for Marine Mineral Resources, and the influencing factors for packing efficiency were analyzed. “An extremely narrow operational window, high fluid loss ratio, and the metastable characteristics of NGH significantly increase the difficulties of packing a long-reached horizontal well in NGH-bearing strata, compared with that located in a consolidated conventional reservoir”, says Dr. LI Yanlong, the first author of the publication. A rigorous schedule and a software package were established, aiming at tackling the aforementioned challenges. The results indicate that a combination of lightweight gravel, low-concentration slurry, and viscosity reducer is the key to safely packing the NGH production horizontal wells. This research work was supported by the National Natural Science Foundation of China (Grant Number: 41976074, 42076217), and the Taishan Scholar Special Experts Project of Shandong Province (Grant Number: ts201712079). Cite: Li, Y., Wu, N., Gao, D., Chen, Q., Liu, C., Yang, D., Jin, Y., Ning, F., Tan, M. & Hu, G. (2021). Optimization and Analysis of Gravel Packing Parameters in Horizontal Wells for Natural Gas Hydrate Production. Energy, 119585.

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04 JAN 2021

QNLM Proposed Protocols for Gravel Pack in NGH Production Well

Marine natural gas hydrate (NGH) is believed to be a promising alternative fossil energy. Effectively producing natural gas from marine NGH-bearing strata has attracted worldwide attentions. Solving potential geo-technical problems is the key to ensuring safe and efficient NGH exploitation, among which sand production has been proved to be one of the main obstacles. Exploiting NGH with a horizontal well could promote gas productivity, whereas a robust sand control completion is essential to avoid uncontrollable sand production. Researchers from QNLM recently published an academic paper in the journal of Energy (IF=6.082), in which the main technical challenges of sand control with gravel packing for NGH production horizontal wells were concisely summarized. A new protocol for packing parameters optimization is proposed by QNLM Functional Lab for Marine Mineral Resources, and the influencing factors for packing efficiency were analyzed. “An extremely narrow operational window, high fluid loss ratio, and the metastable characteristics of NGH significantly increase the difficulties of packing a long-reached horizontal well in NGH-bearing strata, compared with that located in a consolidated conventional reservoir”, says Dr. LI Yanlong, the first author of the publication. A rigorous schedule and a software package were established, aiming at tackling the aforementioned challenges. The results indicate that a combination of lightweight gravel, low-concentration slurry, and viscosity reducer is the key to safely packing the NGH production horizontal wells. This research work was supported by the National Natural Science Foundation of China (Grant Number: 41976074, 42076217), and the Taishan Scholar Special Experts Project of Shandong Province (Grant Number: ts201712079). Cite: Li, Y., Wu, N., Gao, D., Chen, Q., Liu, C., Yang, D., Jin, Y., Ning, F., Tan, M. & Hu, G. (2021). Optimization and Analysis of Gravel Packing Parameters in Horizontal Wells for Natural Gas Hydrate Production. Energy, 119585.

1100
06 AUG 2020

Uncovering the Architecture of Natural Photosynthetic Machinery

Photosynthesis is one of the most important biological energy conversion processes on earth. Photosynthetic electron transport is carried out mainly by four membrane-spanning macromolecular complexes—photosystem I (PSI), photosystem II (PSII), cytochrome b6f complex (Cyt b6f) and ATP synthase (ATPase). For a long time, scientists have conducted researches on the structure and function of photosynthetic complexes and obtained many individual atomic structures of photosynthetic complexes, which has facilitated the understanding of their functions. However, people know little about the structural variability, coordination and adaptation of these complexes on the natural thylakoid membranes. How they achieve energy transport and regulation through dynamic coordination is still unclear. In this context, researches have been conducted by a research team led by Prof. ZHANG Yuzhong from QNLM Functional Laboratory for Marine Biology and Biotechnology cooperated with the team led by Prof. LIU Luning from the University of Liverpool. They used state-of-the-art atomic force microscopy (AFM) to visualize the native organization and interactions of photosynthetic complexes within the thylakoid membranes from the model cyanobacterium Synechococcus elongatus PCC 7942. The results also revealed the light adaptation and regulation mechanism of structure and function of thylakoid membranes. The thylakoid membranes are heterogeneous and assemble photosynthetic complexes into functional domains to enhance their coordination and regulation. Under high light, the chlorophyll-binding proteins IsiA are strongly expressed and associate with PSI, forming highly variable IsiA−PSI supercomplexes to increase the absorption cross-section of PSI. There are also tight interactions of PSI with PSII, Cyt b6f, ATPase and NAD(P)H dehydrogenase complexes. The organizational variability of these photosynthetic supercomplexes permits efficient linear and cyclic electron transport as well as bioenergetic regulation. 

987
05 AUG 2020

It’s Not a FLU! Tips to Stay Away from COVID-19

COVID-19 is raging all over the world and the fight is going on. Here are some simple precautions to reduce your chances of being infected or spreading COVID-19: · Regularly and thoroughly clean your hands with an alcohol-based hand rub or wash them with soap and water. Why? Washing your hands with soap and water or using alcohol-based hand rub kills viruses that may be on your hands. · Maintain at least 1 metre (3 feet) distance between yourself and others. Why? When someone coughs, sneezes, or speaks, they spray small liquid droplets from their nose or mouth which may contain virus. If you are too close, you can breathe in the droplets, including the COVID-19 virus if the person has the disease. · Avoid going to crowded places. Why? Where people come together in crowds, you are more likely to come into close contact with someone that has COVID-19 and it is more difficult to maintain physical distance of 1 metre (3 feet). · Avoid touching eyes, nose and mouth. Why? Hands touch many surfaces and can pick up viruses. Once contaminated, hands can transfer the virus to your eyes, nose or mouth. From there, the virus can enter your body and infect you. · Make sure you, and the people around you, follow good respiratory hygiene. This means covering your mouth and nose with your bent elbow or tissue when you cough or sneeze. Then dispose of the used tissue immediately and wash your hands. Why? Droplets spread virus. By following good respiratory hygiene, you protect the people around you from viruses such as cold, flu and COVID-19. · Stay home and self-isolate even with minor symptoms such as cough, headache, mild fever, until you recover. Have someone bring you supplies. If you need to leave your house, wear a mask to avoid infecting others. Why? Avoiding contact with others will protect them from possible COVID-19 and other viruses. · If you have a fever, cough and difficulty breathing, seek medical attention, but call by telephone in advance if possible and follow the directions of your local health authority. Why? National and local authorities will have the most up to date information on the situation in your area. Calling in advance will allow your health care provider to quickly direct you to the right health facility. This will also protect you and help prevent spread of viruses and other infections. · Keep up to date on the latest information from trusted sources, such as WHO or your local and national health authorities. Why? Local and national authorities are best placed to advise on what people in your area should be doing to protect themselves.

1177
25 JUL 2019

QNLM Develops China-Portugal Science and Technology Cooperation

On July 12ᵗʰ, 2019, the 9ᵗʰ Sino-Portugal Joint Commission Meeting and Workshop 2030 for Science and Technology were held in Lisbon, the capital of Portugal. Those who attend the meeting include Ministry of Science and Technology of China (MOST) Minister WANG Zhigang, Director YE Dongbai, Department of International Cooperation, Director QIN Yong, Department of High and New Technology, Director WU Yuanbin, Department of Science and Technology for Social Development, Mr. MA Zhiyi, President of Macau Science and Technology Development Foundation and Chinese and Portuguese representatives for cooperation in science and technology. Manuel Heitor, Minister for Science, Technology and Higher Education of Portugal hosted the meeting and Minister WANG Zhigang gave a keynote speech. After a review of fruitful results in scientific and technological cooperation, both leaders had a discussion for scientific and technological cooperation 2030.According to the planning of MOST and QNLM Executive Committee, JI Peiwen, Deputy Director of the office of QNLM and PAN Kehou, Secretary-General of QNLM Academic Committee attended the joint commission meeting. Secretary PAN gave a report themed Enhance Coordinative Innovation of Marine Science and Technology to Promote a Shared Marine Community. He proposed the essentials, development planning and government support for Sino-Portugal marine cooperation, which echoed in both ministries of science and technology, marine institutions and enterprises.

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