CAJ | 학술논문

塔里木盆地台盆区寒武系已发现的碳酸盐岩潜山油气藏显示了巨大的勘探潜力，然而由于塔里木盆地经历了多期的构造运动，早期形成的寒武系碳酸盐岩油气藏经历了后期的调整、改造、破坏和再聚集，油气成藏过程复杂，已有的油气成藏理论难以指导该地区的油气勘探。目前寒武系地层钻探成功率偏低，仅为25％。从地质角度出发，采用“功能要素匹配-构造过程叠合-晚期相势源复合的新方法对塔里木盆地寒武系失利井原因进行分析，试图揭示该地区油气成藏机理，以便有效地指导油气勘探。通过对塔里木盆地寒武系的15口失利井的分析结果表明：80％的失利井由于功能要素不匹配，落在有利成藏领域之外而失利；7％的失利井由于构造过程叠合改造破坏了早期形成的油气藏，落在有利勘探区带之外而失利；13％的失利井由于晚期相-势-源不复合，落在有利勘探目标外而失利。该方法完美地解释了塔里木盆地寒武系钻探失利的原因，说明其在指导油气勘探中的可行性和有效性，对以后的油气勘探具有重大的现实意义。
탑리목분지태분구한무계이발현적탄산염암잠산유기장현시료거대적감탐잠력，연이유우탑리목분지경력료다기적구조운동，조기형성적한무계탄산염암유기장경력료후기적조정、개조、파배화재취집，유기성장과정복잡，이유적유기성장이론난이지도해지구적유기감탐。목전한무계지층찬탐성공솔편저，부위25％。종지질각도출발，채용“공능요소필배-구조과정첩합-만기상세원복합적신방법대탑리목분지한무계실리정원인진행분석，시도게시해지구유기성장궤리，이편유효지지도유기감탐。통과대탑리목분지한무계적15구실리정적분석결과표명：80％적실리정유우공능요소불필배，락재유리성장영역지외이실리；7％적실리정유우구조과정첩합개조파배료조기형성적유기장，락재유리감탐구대지외이실리；13％적실리정유우만기상-세-원불복합，락재유리감탐목표외이실리。해방법완미지해석료탑리목분지한무계찬탐실리적원인，설명기재지도유기감탐중적가행성화유효성，대이후적유기감탐구유중대적현실의의。
The proved carbonate hydrocarbon reservoirs in burial hills of Cambrian have shown the huge explora-tion potential;however,because the basin has gone through multiple structural events,the reservoirs formed previously in Cambrian were affected by later structural events,and they were adjusted,transformed,destroyed and reformed.The complexity of the superimposed basin leads to a loss to present theories.At present,the suc-cess ratio of exploration about 25%in Cambrian is low.This paper discusses the failure reasons of these 15 holes from the geological process of hydrocarbon enrichment by the methods of“functional elements matching,struc-tural process superimposing and facies-potential-sources coupling at late stage”,and tries to bring to light the hydrocarbon accumulation mechanism to improve the efficiency of exploration.The results turns out that,80 percent of abortive holes locating out of the promising accumulation districts failed because they did not match functional factors;7 percent of them locating out of promising exploration areas failed because the previous res-ervoirs were destroyed in the later structural events;13 percent of them failed because they did not meet the fa-cies-potential-source couple in late stage.The methods successfully explained the reasons of failure holes in Cambrian in the Tarim basin and proven the feasibility and validity of the new theory and prediction methods, showing a great practical significance to the future petroleum exploration.