생산유전의 CO₂ 공법 적용성 평가를 위한 평가차트 개발 및 응용

권순일,조현진,하세훈,이원규,양성오,성원모,Kwon, Sunil,Cho, Hyunjin,Ha, Sehun,Lee, Wonkyu,Yang, Sungoh,Sung, Wonmo 한국화학공학회 2007 Korean Chemical Engineering Research(HWAHAK KONGHA Vol. No.

본 연구에서는 회수증진기법 중 하나인 $CO_2$ 공법을 생산유전에 적용할 경우, 적용성 여부를 간단하고 정량적으로 평가할 수 있도록 하기 위한 평가차트를 개발하였다. 이 평가차트는 소스의 이용성, $CO_2$-오일의 혼합도, 저류층 및 오일 특성의 적정성, 주입기법의 평가항목으로 구성되어 있다. 저류층 및 오일의 특성에서 오일 비중, 오일 점성도, 오일 포화도, 저류층 온도 및 투과도의 기본평가항목에 대해서는 점수로 평가되며, $CO_2$ 순도, 저류층 두께 및 경사도 등의 추가평가항목에 대해서는 상 중 하로 구분하여 정량적으로 평가된다. 또한 미서블공법의 주입기법 평가에서는 지층경사, 수직투과성 및 저류층 두께 등에 따라 연속주입공법과 WAG($CO_2$) 공법의 여부가 정성적으로 평가된다. 이와 같이 구성된 평가차트에 대해 $CO_2$ 공법이 성공적으로 수행된 51개 유전의 적용사례를 분석하여 이를 토대로 $CO_2$ 공법이 가능한 추천점수를 설정하였다. 본 연구에서 개발한 평가차트를 국내 기업이 참여중인 스코틀랜드의 캡틴 생산유전과 베네수엘라의 오나도 생산유전에 적용하여 $CO_2$ 공법의 적용 가능성 여부를 평가하였다. 여기서 캡틴 유전은 저류층의 공극률과 투과도가 매우 양호하나, $C_{21+}$ 이상의 무거운 탄화수소 함유량이 54%를 넘는 중질유이다. 따라서 이러한 중질오일은 $CO_2$와 비미서블공법으로 진행되므로 비미서블공법 기준하의 기본평가항목에 대해서만 평가한 결과 비미서블 $CO_2$ 공법이 적정한 것으로 평가되었다. 한편, 베네수엘라의 오나도 유전에 대해서는 최소 미서블압력이 저류층 압력보다 낮게 산출되어 미서블 $CO_2$ 공법이 적용 가능할 것으로 평가되었다. In this study, we present the evaluation chart for assessing the applicability of $CO_2$ flooding method to oil reservoirs. The evaluation chart consists of four categories as source availability, miscibility, applicability and injecting method of miscible flooding. The applicability of reservoir and oil in the chart has basic items of the properties such as oil gravity, viscosity, oil saturation, reservoir temperature and permeability, and these are quantitatively graded. Meanwhile, for additional items of $CO_2$ purity, reservoir thickness and formation dip, they are graded as "highmediumlow". In the case of evaluating the injection method of either continuous injection or WAG ($CO_2$), the qualitative decision will be made according to formation dip, vertical permeability, reservoir thickness, etc. The recommended score in the chart was assigned by utilizing 51 oil producing fields which $CO_2$ flooding is successfully being applied. The evaluation chart developed in this work has been applied to the Captain oil producing field located in Scotland as well as to the Onado oil field of Venezuela, which Korean oil companies have participated in. For the Captain field, the reservoir quality in terms of permeability and porosity is considered to be very excellent to flow the oil. The oil in captain field contains heavier component of $C_{21+}$ as 54%. Therefore, this heavy oil could be immiscibly displaced, hence the evaluating result with the basis of immiscible criteria shows that $CO_2$ immiscible flooding in this field could be properly applied. In the case of Onado oil producing field, since the estimated minimum miscibility pressure is lower than the reservoir pressure, it was assessed that the Onado field would be efficiently conducted for $CO_2$ miscible flooding.

Upper Eyelid Retraction After Periorbital Trauma

권순일,김윤정 대한안과학회 2008 Korean Journal of Ophthalmology Vol.22 No.4

We report four unusual cases of upper eyelid retraction following periorbital trauma. Four previously healthy patients were evaluated for unilateral upper eyelid retraction following periorbital trauma. A 31-year-old man (Case 1) and a 24-year-old man (Case 2) presented with left upper eyelid retraction which developed after blow-out fractures, a 44-year-old woman (Case 3) presented with left upper eyelid retraction secondary to a periorbital contusion that occurred one week prior, and a 56-year-old man (Case 4) presented with left upper eyelid retraction that developed 1 month after a lower canalicular laceration was sustained during a traffic accident. The authors performed a thyroid function test and orbital computed tomography (CT) in all cases. Thyroid function was normal in all patients, CT showed an adhesion of the superior rectus muscle and superior oblique muscle in the first case and diffuse thickening of the superior rectus muscle and levator complex in the third case. CT showed no specific findings in the second or fourth cases. Upper eyelid retraction due to superior complex adhesion can be considered one of the complications of periorbital trauma.

Non-vitamin K antagonist oral anticoagulants among Koreans aged 80 or more with atrial fibrillation

권순일,이소령,최의근,최원석,한경도,정진형,이의재,차명진,오세일 대한내과학회 2019 대한내과학회 추계학술발표논문집 Vol.2019 No.1

The Clinical Course of the Idiopathic Epiretinal Membrane After Surgery

권순일,고성주,박인원 대한안과학회 2009 Korean Journal of Ophthalmology Vol.23 No.4

Purpose: To evaluate the clinical course of visual acuity and foveal thickness in the idiopathic epiretinal membrane (ERM) after a vitrectomy with the use of triamcinolone. Methods: We retrospectively reviewed the records of 30 patients (30 eyes) with ERM that were treated by vitrectomy from 2004 to 2008. Visual acuity and foveal thickness from optical coherence tomography imaging was obtained preoperatively and at every postoperative follow-up visit. Results: Visual acuity improved by two or more lines of vision in 30%, 50%, 60%, and 70%, and stayed the same within ±1 line in 47%, 50%, 40%, and 30% at one month, three months, five months, and seven months after surgery. Twenty-three percents of the subjects deteriorated by two or more lines of vision within one month after surgery. None of the subjects had reduced vision three months after surgery. Foveal thickness decreased significantly after surgery. The mean thickness was 409.7±107.9 ㎛ before surgery and 288.6±66.1 ㎛ seven months after surgery. Parameters which were significantly correlated with the final visual acuity included preoperative visual acuity (0.683), preoperative foveal thickness (0.544), and final foveal thickness (0.643) (p<0.005). Conclusions: Foveal thickness and visual acuity improved until seven months after the vitrectomy in patients with idiopathic ERM. Preoperative visual acuity, foveal thickness, and final foveal thickness had a significant correlation with the final visual acuity.

단백질 칩의 분자진단적인 응용 및 전망

권순일,도성탁 대구보건전문대학 2007 대구보건대학 論文集 Vol.27 No.-

A typical protein chip is defined as a piece of glass on which different protein molecules have been arrayed at separate locations in an ordered manner thus forming a microscopic array. Microarray technology is in the center of the tools for large scale and high throughput post-genomic research and diagnosis. Protein chip technology has shown its great potential in basic research, diagnostics and drug discovery. It has been applied to analyze antibody-antigen, protein-protein, protein-nucleic acid, protein-lipid and protein-small molecule interactions, as well as enzyme-substrate interactions. Various protein chip diagnostic kits were developed for the diagnosis of wide range of disease including cancers and SARS. In this review, the latest technologies of protein chip are discussed in various aspects with its application in molecular diagnosis. Protein chips may not only change current medical diagnostic practices like the introduction of point of care test products but also have a significant potential to improve human healthcare service in the future.

Evaluation of crab apples for apple production in high-density apple orchards

권순일,유진기,이진욱,문용선,최철,정희영,이동훈,김창길,강인규 한국식물생명공학회 2015 식물생명공학회지 Vol.42 No.3

Crab apple cultivars, ‘Maypole’, ‘Tuscan’, and ‘Manchurian’, were evaluated as potential pollinizers of major apple cultivars, ‘Fuji’, ‘Hongro’, and ‘Tsugaru’, cultivated in high-density apple orchard systems. Numerous cultivar characteristics, including blooming time, pollen germination, fruit set, disease and pest resistance, and selfincompatibility, were examined. The blooming times of both ‘Maypole’ and ‘Tuscan’ ranged from April 19 to May 5, which was 2-4 days earlier than those of the major commercial apple cultivars. PCR analysis did not reveal the presence of any of the S-alleles (S1, S3, S7, or S9) identified in major commercial apple cultivars. In addition, the percentage of the fruit set was high after trees were artificially fertilized with crab apple pollen. Artificially cross-pollinated fruits were of similar or higher quality than open-pollinated fruits. They also demonstrated resistance to apple blotch, sooty blotch, and fly speck. The results indicate that the two crab apples, ‘Maypole’ and ‘Tuscan’ would be potential candidates for pollinizers of major apple cultivars in Korea. Use of the pollen of these crap apples in commercial production will improve fruit quality and promote sustainable and robust fruit production.

규제 중심의 법 개정이 공유 킥보드 이용에 미치는 요인 분석

권순일,송태진,김상훈 한국ITS학회 2022 한국ITS학회 학술대회 Vol.2022 No.06

초등학교 체육과 교육과정 변천에 관한 고찰

권순일 江原大學校附設 體育科學硏究所 1996 江原大學校附設體育科學硏究所論文集 Vol.- No.20

The purpose of this study was to develop change of the elementary physcal education curriculum by critically analyzing the models and current national curriculum. As the result of critique and analysis of the research gathered from a variety of source, an alternative curriculum for elementary, physical education was developed. The three aspects of the system for curriculum development, curriculum objectives, and curriculum content were analyged. This curriculum intergrated the advntages and solved the problems of the existion curriculum models and current national curriculum. The alternative curriculum developed in this study would provide an effective means for achieving not only the goals but also of elementary physical education

국지 확률예측시스템의 해상도와 영역확장 개선연구

권순일,손주형,신현철,강현석 한국기상학회 2018 한국기상학회 학술대회 논문집 Vol.2018 No.10

퍼스널모빌리티 시뮬레이터 주행환경 시나리오 구현을 위한 연구동향 분석 및 발전방향

권순일,김나연,송태진 대한교통학회 2020 대한교통학회 학술대회지 Vol.83 No.-