埕岛油田海上石油平台基础冲刷研究

海洋石油平台的建立会改变平台周围的水动力条件，其中平台的基础及与之连接的海底管缆(输油管道、注水管道、海底电缆等)附近产生冲刷现象，对平台和海底管缆的安全造成威胁。根据对研究区典型平台的4次实洲水深并结合以往资料，分析了埕岛油田海上石油平台基础冲刷的过程及其规律。     

濮城油田东区沙二上2+3层系剩余油分布及开发思路

1　油田基本情况濮城油田是已经开采 2 0多年历史的老油田 ,为我国石油工业发展作出了较大的贡献。濮城油田东区构造圈闭面积约 4km2 ,高点埋深 2 30 0～ 2 30 7m ,构造闭合幅度 4 5～ 90m。储层为沙河街组二段上部第 2、第 3砂组 ,每个砂组划分7个小层 ,共 14个小层。储层厚度变化大 ,大于16 0m的后区有 4处 ,最薄为 6 0m ,反映了三角洲前缘和部分前三角洲远沙坝多次叠置的砂体特点。在单面山式断背斜构造圈闭内 ,- 2 4 0 0m左右为气水边界 ,有 2 0 0多口井控制 ,获得大于 2 0 0× 10 4 t的可采储量。其中沙二上2 + 3砂组占总可采储量的82 …     

埃克森石油公司油田开发新技术及展望

埃克森石油公司是一个重要的国际石油公司。1975～1990年15年中,埃克森公司石油开采技术性能的进步每年平均以5％的速率提高。 1 现状和开发新技术 在寻找新的油气藏时,石油工业正面临着日益增加的自然环境挑战。埃克森公司今天的发现多是较小型的油气田,而这些油气田常常处于风浪大或气候严酷的环境中。所遇到的境况有:(1)由于水深增加而造成的自然地形障碍;(2)离岸距离更加遥远;(3)油气层具有     

南海北部又有两个油田投产

最近，南海又传来喜讯：珠江口盆地的陆丰13-1中型油田和北部湾盆地的涠11-4中型油田建成并投产，石油生产能力分别为90万t和80万t．     

辽北-吉西南地区早白垩世富碱花岗岩地质特征

辽北-吉西南地区早白垩世富碱质花岗岩主要由碱长花岗岩、石英二长岩组成,同位素年龄为125 Ma左右,岩石化学以富碱、富硅为特征,具A型花岗岩特点,但铝质偏高,又具过铝质花岗岩的特点,应属于后造山期之PA型花岗岩。其构造背景为晚印支期-早燕山期滨太平洋造山带造山晚期坍塌阶段的产物。     

TOPCON GTS901A机载程序设计

介绍了基于Windows CE嵌入式操作系统,开发了TOPCON智能型全站仪GTS901A机载程序的方法,实现了学习测量、自动测量、数据存储及处理等功能。     

松辽盆地葡萄花油田北部鞍部地区成藏控制因素分析

在系统描述葡萄花油田北部鞍部地区构造特征和断裂体系的基础上,分析了烃源岩大量排烃期与构造形成时期的匹配关系、砂体分布、地层压力和断层封闭性对研究区成藏的控制作用。研究结果表明:烃源岩大量排烃期和构造形成时期良好匹配,地层压力低势区和在成藏时期断块边界断层侧向开启是成藏的有利条件,构造和砂体分布则是成藏的主要控制因素。研究区成藏条件较好,可作为有利扩边潜力区。     

黑龙江省中部森林沼泽区金在土壤A层中的富集规律

探讨了金在黑龙江省中部森林沼泽区A层土壤-10～+60目、-60～+100目、-100～+160目及-160目粒级中的含量分布特征和富集规律。经对比研究认为,-100目可以满足低密度深穿透地球化学详细测量采样要求,该粒级能够有效地发现异常。     

Study on the connectivity of heavy oil reservoirs by ultraviolet spectrum technique in the western part of the QHD32-6 oilfield

As a new method, the ultraviolet spectrum technique is applied to studying the connectivity of biode-gradable heavy oil reservoirs. The similarity of crude oils can be judged according to the extinction coefficient （E） because aromatic hydrocarbons and non-hydrocarbons have conjugated bonds and obvious absorption in the ultraviolet range, and different materials have different characteristics and additives. The relationship diagram is made in terms of the extinction coefficients （E） of the samples by taking E as the Y-axis and wavelength as the X-axis. The connectivity of oil reservoirs is estimated according to the curve positions and characteristic fingerprints of the sampies. The connectivity of part of the reservoirs in the western part of the QHD32-6 oilfield was studied with this method. The results showed that the connectivity of samples from wells F7 and F8 in the Nm-2 oil reservoir zone is good, that of samples from wells F17 and F20 in the Nm-1 oil reservoir zone also is good, and that of samples from wells F17, F19, and F20 is poor.     

Application of Spectral Decomposition to Detection of Fracture-Cavity Carbonate Reservoir Beds in the Tahe Oiifieid, Tarim Basin, NW China

Ordovician fracture-cavity carbonate reservoir beds are the major type of producing formations in the Tahe oilfield, Tarim Basin. The seismic responses of these beds clearly changes depending on the different distance of the fracture-cavity reservoir bed from the top of the section. The seismic reflection becomes weak or is absent when the fracture-cavity reservoir beds are less than 20 ms below the top Ordovician. The effect on top Ordovician reflection became weaker with deeper burial of fracture-cavity reservoir beds but the developed deep fracture-cavity reservoir beds caused stronger reflection in the interior of the Ordovician. This interior reflection can be divided into strong long-axis, irregular and bead string reflections, and was present 80 ms below the top Ordovician. Aimed at understanding reflection characteristics, the spectral decomposition technique, which uses frequency to ＂tune-in＂ bed thickness, was used to predict Ordovician fracture-cavity carbonate formations in the Tahe oilfield. Through finely adjusting the processing parameters of spectral decomposition, it was found that the slice at 30 Hz of the tuned data cube can best represent reservoir bed development. Two large N-S-trending strong reflection belts in the mid-western part of the study area along wells TK440- TK427-TK417B and in the eastern part along wells TK404-TK409 were observed distinctly on the 30 Hz slice and 4-D time-frequency data cube carving. A small N-S trending reflection belt in the southern part along wells T403-TK446B was also clearly identified. The predicted reservoir bed development area coincides with the fracture-cavities connection area confirmed by drilling pressure testing results. Deep karst cavities occur basically in three reservoir bed-development belts identified by the Ordovician interior strong reflection. Spectral decomposition proved to be a useful technique in identifying fracture-cavity reservoir beds.