In order to play a full role of mud logging technology in steering the horizontal wells,increase the drilling rate of coming across the oil bed by the geologic steering,enlarge the exposed area of the reservoir,obtain the aim of increasing the residual oil and oil and gas production amount of single wells and decreasing the exploration and development cost,the research was carried out and the special software was made according to the geologic features in Zhongyuan Oilfield,and the geologic steering chart was drew by using various parameters and data collected during mud logging. By the stratum contrast,the location of the horizontal target zones was accurately predicted and clicked,with the help of the curve features of oil reservoir and non oil reservoir,whether the bit was passing the oil bed or not could be judged,and with the accurately calculated stratigraphic dip,the bit could be made to pass in the oil bed as more as possible. The well site experimental application technology was practicable and adaptable and has become an indispensable technical mean for the horizontal well operation.
When velocity anisotropy exists in subsurface rocks,the conventional isotropic migration methods may lead to not only wrong imaging position but also inaccurate image quality.This paper presents a method of anisotropic pre-stack time migration with real 3D seismic data in Dongpu sag.First,velocity and anisotropy parameters are obtained by using bi-spectral velocity analysis,and then the pre-stack data is migrated with an anisotropic method.Good imaging results are fulfilled in real 3D data.
通过对文181块地层特征、岩性特征、电性特征分析研究,总结出了该区块的标志层特征,对资料录取和完钻层位的卡取提供了详实和准确的地质资料。
When velocity anisotropy exists in subsurface rocks,the conventional isotropic migration methods may lead to not only wrong imaging position but also inaccurate image quality.This paper presents a method of anisotropic pre-stack time migration with real 3D seismic data in Dongpu sag.First,velocity and anisotropy parameters are obtained by using bi-spectral velocity analysis,and then the pre-stack data is migrated with an anisotropic method.Good imaging results are fulfilled in real 3D data.
该文通过对卫城地区,卫75、卫77断块中生界地层特征、岩性特征分析,结合各项录井资料,阐述了中生界裂缝性含油显示特征,分析了中生界地层录井应采取的措施,为油田勘探开发和地质录井工作提供了准确的地质资料。
白音查干凹陷是中原油田的风险勘探盆地,断层发育构造复杂,勘探程度低,经过近几年来的勘探获得了工业油气流。本文通过对达尔其腾格尔组的地层特征分析,为达尔其油田的勘探开发和地质录井工作起到了指导作用。
对于比较特殊的油气层,常规参数评价相差较大,不同时期录井仪器及分析参数差别也很大。针对特殊油气层普遍存在的这些难点,开展从原始资料的标准化、规范化处理技术到多参数的综合评价技术以实现油气层的再评价。
白音查干凹陷在发育演化过程中,由于基底的升降、断裂活动的不均衡性,导致伸展变形构造的不同部位形成多种类型的变换构造调节体系.白音查干凹陷毛呼凸起就是一个大的变换构造带,由两个同向型斜向调节带和一个平行走向型调节带组成.西部洼陷的构造调节带主要有反向型背斜调节带、同向型横向调节带、同向型斜向调节带和平行走向调节带4种类型.勘探实践证明,西部洼陷南部的锡林好来、达尔其南、达尔其东和翁特等构造调节带及附近地区,构造、岩性和地层超覆不整合圈闭发育,又长期处于油气运移的主要指向,有利于油气的聚集和富集.
该文通过对文72块沙三中地层特征、岩性特征分析研究,总结出了直观鉴定法与标志层对比法两种岩性识别方法且在文72-90井等12口的具体应用中收到较好效果,共节约进尺135.7 m,节约钻井投资15万元,为油田勘探开发提供了准确的地质资料.
临城县是个"七山一水二分田"的山区县,宜林"四荒"广阔,酸枣资源丰富。1997年以来,县委、县政府立足县情,把大枣这一传统优势作为特色主导产业来发展,以转换机制为突破口,通过理顺产权机制,改革投入机制,强化服务机制,搞活经营机制,扎实推进大枣县建设,取得了显著效果。目前全县26万亩"四荒"全部转制到位,栽植嫁接大枣18万亩700万株,建成大枣万亩方3个,千亩方9个,百亩方46个,实现了人均1亩大枣林的目标,被命名为全省优质红枣基地县。临城大串杆枣获国家银质奖,大枣业初步形成产加销一体化的特色主导产业格局。