CAJ | 학술논문

应用现代测井解释技术，对曾钻探地区原有的测井资料进行测井地质分析，可获得对重要石油地质问题的突破性认识。某深井位于东濮凹陷南部的孟岗集洼陷，钻于20世纪80年代初，当时该井的地层评价结论导致认为东濮凹陷南部的沙河街组三段、四段较薄和油气资源贫乏，以致后来勘探投入很少。迄今该井仍是该区最深的探井（井深5598m），有当时的3600测井系列测得的9条常规测井曲线。在东濮凹陷西洼南部探井选位的前期研究中，根据该井的测井资料情况，做了三方面处理和研究工作：①地层分析和地层压力评价，认为5198.5m以下的地层不是三叠系而仍是下第三系，沙一段和沙三段—沙四段存在高压异常；②重新解释油气层和评价储集层，在沙三段—沙四段发现6层12.87m厚可疑油层；③评价油源岩，认为沙一段和沙三段—沙四段油源岩具有较好的生油能力。在该井测井评价结论的基础上，结合地震资料处理对该区进行石油地质综合评价，使勘探面积增加1000km2，预测石油资源量1.2×108t，提出8个有利构造，首选其中的方里集构造，成功地钻了某深8井。图3表4参1（王孝陵摘）
응용현대측정해석기술，대증찬탐지구원유적측정자료진행측정지질분석，가획득대중요석유지질문제적돌파성인식。모심정위우동복요함남부적맹강집와함，찬우20세기80년대초，당시해정적지층평개결론도치인위동복요함남부적사하가조삼단、사단교박화유기자원빈핍，이치후래감탐투입흔소。흘금해정잉시해구최심적탐정（정심5598m），유당시적3600측정계렬측득적9조상규측정곡선。재동복요함서와남부탐정선위적전기연구중，근거해정적측정자료정황，주료삼방면처리화연구공작：①지층분석화지층압력평개，인위5198.5m이하적지층불시삼첩계이잉시하제삼계，사일단화사삼단—사사단존재고압이상；②중신해석유기층화평개저집층，재사삼단—사사단발현6층12.87m후가의유층；③평개유원암，인위사일단화사삼단—사사단유원암구유교호적생유능력。재해정측정평개결론적기출상，결합지진자료처리대해구진행석유지질종합평개，사감탐면적증가1000km2，예측석유자원량1.2×108t，제출8개유리구조，수선기중적방리집구조，성공지찬료모심8정。도3표4삼1（왕효릉적）
By using modern log interpretation technology on logging datum about old areas, which have been drilled, great breakthrough may be made in the important petroleum geology issues. Well Moushen is located in Menggangji depression, south of Dongpu seg. It was first drilled in the beginning of 80's. The evaluation of the formation led to the conclusion that Members 3 and 4 of Shahejie Formation are thin and the oil and gas resource are spare in south area of Dongpu seg. Since that time, so little was input in the exploration of it. Well Moushen is still the deepest testing well in this area, having 9 logging curves produced by 3600 log series. During the preresearch on the testing well location selection in the south of western depression, three kinds of process and research work have been done according to the log datum on Well Moushen: (1)Formation analysis and formation pressure evaluation which verdicts that formation under 5198.5m is not of Trias, whereas is still in Permian, and abnormal formation pressure phenomenon exists in Members 1 and 3-4 of Shahejie Formation; (2)Re-interpretation of oil and gas formation and evaluation of reserve formation; (3)Evaluation of oil source rock. Members 1 and 3-4 source rocks of Shahejie Formation have good capability of oil generation. On the basis of the conclusion made on Well Moushen logging evaluation, combined with seismic datum process, comprehensive oil geology evaluation about this area was made. As a result, exploration area increased 1000km2, oil resource volume was forecasted to 1.2×108t, and 8 favorable structures were proposed. Fangliji was selected preferentially and Well Moushen-8 was successfully drilled