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    Home > Chemicals Industry > Chemical Technology > "Deeper roots, more gas recovery" - Sun Zhiyang, deputy director of the Oil and Gas Production Engineering Research Institute of Jijianghan Oilfield Petroleum Engineering Technology Research Institute

    "Deeper roots, more gas recovery" - Sun Zhiyang, deputy director of the Oil and Gas Production Engineering Research Institute of Jijianghan Oilfield Petroleum Engineering Technology Research Institute

    • Last Update: 2022-10-19
    • Source: Internet
    • Author: User
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    Sun Zhiyang, who recently won the title of the 21st National Youth Job Expert, is the deputy director
    of the Oil and Gas Engineering Research Institute of Jianghan Oilfield Petroleum Engineering Technology Research Institute.
    For more than 10 years, he has devoted himself to unconventional oil and gas development technology, tackled key problems with the technical team and achieved many innovative achievements such as "shale gas production optimization technology" and "key technology of shale gas well continuous pipe production and completion", and gradually grew into a young technical leader in unconventional oil and gas development in
    Jianghan Oilfield.

    Resolutely transition into the development field

    In 2009, Sun Zhiyang entered the Jianghan Oilfield Petroleum Engineering Technology Research Institute
    after graduating from university.
    Initially, he was engaged in conventional oil and gas development research, and traveled to Xinjiang, Shandong, Shaanxi and other places to carry out conventional oil and gas development technical services
    .

    In 2013, the Fuling shale gas field entered the stage
    of large-scale development.
    At that time, domestic shale gas development could be described as "four empty" - no technology, no equipment, no experience, no talents, and urgently needed to cultivate their own professional and technical personnel to form a series of development technologies
    that could be replicated and promoted.

    Sun Zhiyang was ordered to decisively transform
    into a completely unfamiliar development field.
    He led the development team to run the site during the day, check the gas well situation, and collect first-hand accurate information; Conduct research in the evening, analyze the status, and formulate technical measures
    .

    The effort pays
    off.
    After years of scientific and technological research, Sun Zhiyang's team took the lead in revealing the main controlling factors affecting the production law of shale gas wells, formed the optimal design method of shale gas well wellbore-surface integrated gas production process, and invented "shale gas well continuous pipe production completion technology" and "shale gas well intelligent plunger drainage and production technology"
    .
    Their independent research and development of "marine shale gas production optimization technology" fills the gap in shale gas development technology in China and provides strong technical support
    for the efficient development of shale gas wells.
    He has also gradually grown into a young leader in
    shale gas extraction technology in China.

    Symptomatic measures gnaw down hard bones

    At the beginning of this year, Sun Zhiyang received a new task to work with the technical team to carry out special treatment
    of inefficient wells in the Fuling shale gas field.

    The Fuling shale gas field has been developed for nearly 10 years, and many old gas wells have become more difficult to treat, in the words of Sun Zhiyang: "None of them are fuel-saving lamps
    .
    " ”

    Sun Zhiyang believes that gas wells are the same as people, one well has one symptom
    .
    Some are acute diseases, we must pay attention to them in real time, treat them immediately as soon as they commit a disease, and they can be cured quickly; Some are chronic diseases, which should be tracked every day, analyzed in real time, do not let go of any signs, and slowly regulate
    .
    As long as the right policy is taken, it will definitely receive a good increase in
    production.

    Since the establishment of the special treatment working group for inefficient wells, Sun Zhiyang has checked the pressure, gas production and liquid carrying conditions of gas wells every day, used dynamic analysis of single wells, production forecasting and other means, looked for patterns in dense charts and data, carefully selected 85 inefficient wells with potential to increase production, formulated classified treatment countermeasures, and "competed for gas"
    from well to well.

    At the beginning of this year, the gas production rate of Jiaopan 68-S1HF well dropped significantly, and the daily output sometimes dropped to zero
    .
    Sun Zhiyang studied carefully with the technical team and found that this gas well not only produced serious sand, but also accumulated
    liquid in the wellbore.

    Sun Zhiyang tailored a technical plan for the resumption of production for this well, and first installed a desand remover to solve the problem of sand blockage in the wellbore; The combined drainage gas production technology of "pressurization + bubble drainage" is used to remove the wellbore liquid
    accumulation for the gas well.
    After four months of treatment, the gas production time rate of this well is 100%, and the average daily production has reached a new high
    .

    Since the beginning of this year, 85 inefficient wells in the Fuling shale gas field have achieved remarkable results, and the daily gas production has increased by 66%.

    Practical exercises are rewarding

    Since the second half of this year, Sun Zhiyang has responded to the call of "1,000 cadres to the grassroots" practice and training in Jianghan Oilfield, and together with front-line gas producers every day, he inspects the gas well situation during the day, monitors the construction site, and records the parameters of each gas well; Pick the lights at night, analyze the situation of the gas well, write technical reports and "practice exercise logs", and summarize technical experience
    .
    "I feel that the harvest is great, and the deeper roots can collect more qi
    .
    " Sun Zhiyang said
    seriously.

    He found that front-line employees are not very good at using video surveillance systems, so he taught employees how to use video surveillance to improve the level of grassroots management and work efficiency
    .

    "Xiaosun works too carefully
    .
    A few days ago, the two of us inspected together, and he found that there was a thin wisp of white smoke on the inlet pipeline of the separator of Jiaopan No.
    11 North Gas Gathering Station, which came and went, almost invisible in the sun, he suspected that it was a pipeline leak, and pulled me to watch the video surveillance playback to determine that it was really a pipeline leak.

    We quickly closed the well and changed the pipe, eliminating the potential safety hazard
    in time.
    Wang Yong, head of Jiaopan No.
    11 Inspection Station
    , said with praise when he mentioned Sun Zhiyang.

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