RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 원문제공처
          펼치기
        • 등재정보
        • 학술지명
          펼치기
        • 주제분류
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • 석유/천연가스 매장량의 분류 및 평가방법

        임종세,김지영 한국해양대학교 해양과학기술연구소 2001 硏究論文集 Vol.10 No.1

        It is essential for future planning that governments and industry have a clear assessment of the quantities of petroleum available for production and quantities which are anticipated to become available within a practical time frame through additional field development, technological advances, or exploration. This paper describes the petroleum reserves classification and estimating methods based on the SPE/WPC (1997) definition. Reserves are those quantities of petroleum which are anticipated to be commercially recovered from known accumulations from a given date forward. Reserve estimating methods usually are categorized into analogy, volumetric and performance techniques. The performance techniques are subdivided into simulation studies, material balance calculations, and decline trend analysis. Reserve can be estimated using either deterministic or probabilistic methods. This paper can be helpful to understand petroleum reserve estimation and evaluate the reserves in oil & gas development projects properly.

      • KCI등재

        가스전 회수증진 기술 동향 및 적용사례

        임종세,서광원,이선아,이정환,안승희,신창훈 한국자원공학회 2010 한국자원공학회지 Vol.47 No.5

        Enhanced gas recovery means to increase gas production when a reservoir is difficult to produce commercially natural gas. There are several engineering approaches such as water shut off, CO2 injection, infill drilling, hydraulic fracturing etc. in enhanced gas recovery technique. The water shut off is a technique that control water production by applying various mechanical and chemical methods in the case that a production well has trouble with excessive water production from aquifer. The CO2 injection is method to improve natural gas production by injecting CO2 into reservoir for re-pressurization of the reservoir and displacement of natural gases. This method has been received attention recently because of its possibility for connecting with carbon capture and sequestration technique. To apply the infill drilling technique, petrophysical properties in reservoir are estimated by analysing static and dynamic data from the gas production field and a location of infill drilling are determined by various analysis techniques like ‘Moving Window’ method, reservoir simulation based method etc. The hydraulic fracturing is the way to enhance mobility and connectivity by creating artificially fractures in well vicinity. In this study, various methods for enhancing gas recovery are investigated and its applications are analysed. 가스전 회수증진은 상업적 생산이 어려운 저류층에 대해 다양한 생산기법을 적용함으로써 회수율을 증진시키는 것을 의미한다. 가스 회수증진 기법으로는 지층수 차단, 이산화탄소 주입, 추가 시추, 수압파쇄 등이 있다. 지층수 차단은 대수층으로부터 다량의 물이 유입되는 시추공에 기계적 및 화학적 기법을 적용함으로써 물의 생산을 억제하는 방법이다. 또한 최근 이산화탄소 지중처분기술과 연계하여 이산화탄소를 주입하여 저류층을 재가압하고 가스를 대체함으로써 회수율을 증진시키는 방법이 주목받고 있다. 추가 시추의 경우 기생산 가스전의 정적 및 동적 자료를 해석하여 저류층의 물성을 파악하고 ‘Moving Window’ 기법, 저류층 시뮬레이션 기반 기법 등을 통해 생산성을 향상시킬 수 있는 위치를 선정하여야 한다. 수압파쇄법은 시추공 부근에 인공적인 균열대를 형성하여 저류층의 유동도 및 연결성을 향상시키는 방법이다. 이 연구에서는 다양한 가스회수증진 기법에 대해 조사하고 각각에 대한 적용사례를 분석하였다.

      • KCI등재

        육상 석유 심부시추 기술 동향 및 적용사례

        임종세,강판상,김현태 한국자원공학회 2010 한국자원공학회지 Vol.47 No.5

        Unlike the shallow drilling, deep oil well drilling may be operated in the high formation pressure and high temperature conditions. In these drilling environments, kick, differential sticking, damage of drilling equipments or lost circulation may occur more frequently. Drilling cost and non-productive time could be increased accordingly. More improved equipments and technologies are required to overcome these difficulties and improve productivity while drilling deep formation. The goals of this study are to investigate current technologies for deep oil well drilling such as underbalanced drilling, managed pressure drilling, casing drilling, expandable tubular, mud hammers, mud-pulse drilling, and their applications at Tizon Field in Mexico and El Furrial Field in Venezuela. 석유 심부시추는 천부시추와는 달리 시추 깊이가 깊어질수록 온도 및 압력의 증가로 작업이 어려운 환경에서 시추가 진행된다. 이로 인해 킥, 편향점착, 장비손상, 이수손실 등이 더 자주 발생할 가능성이 높아지므로 시추비용이 증가하고 작업중단기간이 매우 길어질 수 있다. 이러한 시추 환경을 극복하고 생산성을 향상시키기 위해서는 보다 향상된 장비와 기술이 필요하다. 이 연구에서는 석유 심부시추 기술 중 공내감압 시추법 및 압력제어 시추법과 적용사례인 멕시코의 Tizon Field, 베네수엘라의 El Furrial Field에 대해 알아보고자 한다. 또한 최신 석유 심부시추 기술인 케이싱 시추법, 확장성 파이프, Mud hammers, 이수 파동 시추법에 대해 소개하고자 한다.

      • KCI등재

        An experimental study on the effects of internal tubular coatings on mitigating wax deposition in offshore oil production

        임종세,정선영,강판상 한국마린엔지니어링학회 2014 한국마린엔지니어링학회지 Vol.38 No.10

        As the demand for petroleum resources increases, and oilfields on lands and in shallow-sea become exhausted, the areas for oil productionare expanding to the deep sea and therefore technologies for flow assurance are coming into the highlight. In low temperature environment such asthe deep sea, wax is accumulated and prevents stable oil production. Therefore, the development of flow assurance technologies is required. Wax isprecipitated in crystalline form when the oil temperature decreases below the wax appearance temperature; it then accumulates on the inner walls ofpipelines causing blockages. In particular, in subsea pipelines, which have a large surface contact area with the surrounding seawater, wax depositionproblems are frequent. The internal tubular coating can effectively reduce wax deposition without pausing oil production when the coating isappropriately designed. This study carried out wax deposition tests on a number of internal tubular coatings under single flow conditions. The resultswere analyzed for the effects that the physical properties of the coatings had on wax deposition.

      • KCI등재

        검층자료로부터 저류층 유체투과율 추정을 위한 다항식 신경망 기법의 적용

        임종세,박희준 한국자원공학회 2005 한국자원공학회지 Vol.42 No.3

        Reservoir permeability is one of the most important parameters of oil and gas fields for reservoir characterization. In un-cored intervals, reservoir description and evaluation methods using well log data represent a significantly technical and economic advantage because well logs can provide a continuous record over the entire well. Permeability estimation from well logs in heterogeneous formation has a difficult and complex problem to solve by conventional statistical methods. Recently artificial neural networks(ANN) have been successfully used to solve the complex problems in reservoir permeability determination. However, the applications of the neural network to mapping complex nonlinear relationship have revealed a number of unsolved technical limitations despite of the high versatility. This paper proposes a group method of data handling(GMDH) based on an advanced polynomial neural network(PNN) for permeability prediction from well logs to alleviate limitations of the conventional neural network approach. 저류층 유체투과율은 석유 및 천연가스 저류층 특성화에 가장 중요한 특성변수이다. 코어가 채취되지 않은 구간에서 유체투과율을 추정하는 데 있어 거의 모든 유정에서 전 구간에 제공되는 물리검층자료의 활용은 상당한 이점이 있다. 물리검층을 이용한 유체투과율 추정에 일반적인 통계적 방법을 이용하여 불균질한 저류층에서 그 값을 구하는 것은 매우 복잡하며 많은 어려움이 있다. 최근 이에 대한 대안으로 인공신경망 기법을 이용한 해석방법이 활용되고 있으나 기존의 인공신경망 기법은 사용에 많은 한계점이 지적되었다. 이 연구에서는 인공신경망 기법의 문제점을 해결하기 위해 GMDH 알고리즘에 기반한 개선된 다항식 신경망(PNN) 해석법을 제시하고 이를 검층자료로부터 저류층 유체투과율을 추정하는 데 활용한 것이다.

      • KCI등재후보

        Gas Production Optimization of Multi-Reservoir Fields using Branch-System

        임종세,오정용,박희준,Joe M. Kang 한국자원공학회 2006 Geosystem engineering Vol.9 No.3

        The analysis of production systems in multi-reservoir gas fields is required to optimize production rates and enhance ultimate recovery. Conventional methods involve enormous computational efforts since production systems from reservoirs to a gathering station have been considered as one structure and production rates are optimized step-by-step in terms of objective functions. In this study, a new technique is developed to reduce the structural complexities of previous techniques and that consists of branch-systems including reservoirs and a surface branch-system without reservoirs. All branch-systems can be treated independently in this method. The decision variables including pressures and production rates in a branch-system, which are determined by the size of reservoir, the producing capacity of reservoir, and the initial pressure of reservoir, are updated simultaneously at every iteration step to accelerate convergence. The method can analyze multi-reservoir gas fields with a fixed gross production rate at the gathering station efficiently. The results for two fields have shown that the method required less computational efforts and provided relatively accurate outputs for conventional techniques applied to two fields.

      • KCI등재

        Application of various deterministic decline curve analyses in resource plays

        임종세,신효진,김지수 한국자원공학회 2015 Geosystem engineering Vol.18 No.1

        Resource plays have recently received increasing attention. This is because of rising oil prices caused by the growing global demand for petroleum resources and improved production technologies for productivity. Conducting reservoir evaluation in target areas is a priority for oil and gas play development. Petroleum production forecasting is important for well performance evaluations, which are generally routinely performed using decline curve analysis (DCA). DCA relies on the use of empirical curve fitting or the Arps decline model. However, the period and distribution of production data, the differences in the initial production rates of well stimulation technologies, etc., that are derived by estimation have inaccurate results in resource plays. Therefore, many kinds of DCA are proposed to reflect these characteristics of production data. In this study, we applied a variety of deterministic DCA methods using production data of different feature in resource play and investigated the impact caused by the production data. The results show that production trends and estimated ultimate recovery are predicted for each field up to 360 months. In addition, this study can be used as basis process in choosing suitable DCA methods in resource plays.

      • KCI등재

        해저 석유생산시스템에서 유동안정성 확보를 위한 왁스집적 제어기술

        임종세,강판상,유승렬 한국자원공학회 2013 한국자원공학회지 Vol.50 No.2

        Wax has been serious problem of flow assurance in low temperature environment such as subsea petroleum production system. In reservoir condition, wax is liquid phase, however, it can be crystallized at the temperature under wax appearance temperature. Wax crystal tends to be agglomerated and deposited containing oil, which becomes wax deposits. Wax deposition mechanisms in subsea petroleum production system are molecular diffusion, shear stripping reduction, aging, particle diffusion & inertia effect, shear dispersion, brownian diffusion and gravity settling. Commonly, temperature gradient between internal wall and center flow is major influential factor on wax deposition among oil composition, pressure, flow rate and roughness of flow line wall. To mitigate wax deposition in the subsea production system, thermal management, wax inhibitor and pigging have been widely applied. These technologies and applications at King field, Gannet D field and Cottonwood field are investigated in this study. 해저와 같은 저온환경에서 석유생산 시 빈번히 집적되는 왁스는 저류층에서 석유에 용해되어 있으나 석유의 온도가 왁스생성온도 이하가 되면 결정으로 석출된다. 왁스결정은 서로 결합하면서 오일 등을 함유한 왁스고형물이 되고 석유생산 환경에 따라 분자확산, 전단응력효과, 왁스경화, 확산관성효과, 전단확산, 브라운확산, 중력침전으로 유동관 내벽에서부터 집적된다. 온도, 석유성분, 압력, 유량, 유동관 내벽 거칠기가 왁스집적에 영향을 미칠 수 있으나 일반적으로 유동관 내벽의 온도와 유동단면적 중앙의 온도구배가 왁스집적에 가장 큰 영향을 미친다. 석유의 온도감소율이 커서 왁스집적속도가 가장 빠른 유동관에서의 주요 왁스집적 제어기술은 유동관을 단열 또는 석유를 가열하여 왁스생성온도 이상으로 유지시키는 열제어법, 왁스결정의 성장을 막거나 용해시키는 왁스억제제 주입법, 유동관에 집적된 왁스를 긁어 제거하는 피깅이 있고 이들을 멕시코 만에 위치한 King 유전, Gannet D 유전과 북해에 위치한 Cottonwood 유전의 해저 석유생산시스템에 적용한 사례를 조사하였다.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼