CAJ | 학술논문

化探精查是近年来发展起来的为油气田开发服务的新技术。在掌握区域地球化学变化规律，研究已知油气田浅层地球化学效应特征、认识不同时代地层与所含流体化学性质的基础上，以高密度的规则性测网，应用综合烃类气体法(游离烃、吸附烃、吸留烃、水溶烃、高碳烃)、轻芳烃法及碳同位素法检测组成油气藏的物质成分与油气垂向微运移的形迹。在数据处理上，将多元统计与地质统计法相结合，提取浓度、衬度、结构、组构、类比等多方面的油气信息，运用模拟技术确定异常边界，并探讨了化探异定量评价方法。化探精查可圈定油田范围，提出已知油田扩边、外延的方向，为开发井布孔和钻探决策提供科学依据。
화탐정사시근년래발전기래적위유기전개발복무적신기술。재장악구역지구화학변화규률，연구이지유기전천층지구화학효응특정、인식불동시대지층여소함류체화학성질적기출상，이고밀도적규칙성측망，응용종합경류기체법(유리경、흡부경、흡류경、수용경、고탄경)、경방경법급탄동위소법검측조성유기장적물질성분여유기수향미운이적형적。재수거처리상，장다원통계여지질통계법상결합，제취농도、츤도、결구、조구、류비등다방면적유기신식，운용모의기술학정이상변계，병탐토료화탐이정량평개방법。화탐정사가권정유전범위，제출이지유전확변、외연적방향，위개발정포공화찬탐결책제공과학의거。
The precise survey technique of geochemical explorati on is a new technique that recently developed for oil field's exploration.In the basis of knowing the rules of regional geochemistry,studying the characteristic s of near surface geochemical effect in discovered field,knowledge about the str atum and liquid's chemical property in different periods were obtained.In the me an time,with the help of high density regulation surveying web various methods w ere applied to detect the components of reservoirs and the vertical micro-migra tion traces of the oil and gas.These methods respectively use synthetic hydrocar bon gas(dissociate hydrocarbon,adsorptive hydrocarbon,subsistent hydrocarbon,wat er-dissolved hydrocarbon,high-carbon hydrocarbon),light aromatic hydrocarbon a nd isotope.In data processing,polybasic statistics and geological statistics wer e combined to acquire information in concentration lining degree,structure,fabri c and analogism.At the same time,anomalous boundary was determined by simulation and the quantitative evaluation method for geochemical exploration anomalies wa s also discussed.The precise survey technique can specify the range of oil field ,give the extension direction of discovered oil fields and provide the scientifi c basis for drilling production wells and exploration wells.