渤海古近系辫状河三角洲储层描述配套技术——以锦州25-1南油田沙河街组为例

因沙河街组储层埋藏较深,沉积相类型较复杂,储层横向变化较快,且地震资料品质较差,沙河街组储层的描述难度很大.针对以上技术难点,建立辫状河三角洲储层描述的"四步法"技术体系,即背景岩性分析砂层组技术、目标层地质模式分析技术、模式约束地震相分析技术、恢复古地貌储层描述技术.以锦州25一1南油田为例用此方法预测沙二段储层的展布规律.从开发井结果看,锦州25-1南油田沙二段新井全部钻遇设计油层,且基本上为自喷生产,平均单井产油能力为225m3/d,产气量为3×1043/d,油藏开发效果好.     

塔里木盆地麦盖提斜坡西段奥陶系古潜山储层研究

利用塔里木盆地麦盖提斜坡西段二维与三维地震资料,对奥陶系古潜山顶面进行了精细标定、解释、属性分析及古地貌恢复.分析研究结果表明,该区奥陶系古潜山古水系较为发育,下奥陶统古潜山暴露地表的时间较长(近45 Ma),喀斯特斜坡带风化壳储层发育,且受古构造和古水系发育控制.     

柴达木盆地砂西E_3~1油藏构造再认识

砂西油田E_3~1油藏位于柴达木盆地西部南区,是柴达木盆地西部坳陷尕斯库勒断陷亚区内的一个三级潜伏构造[8],基本呈断鼻状分布,被若干不同性质的断层复杂化.多年以来,虽然经过多轮次的地震勘探,但由于受地震资料品质的影响,构造形态、断裂展布、油水关系一直不清.文章利用新采集的三维地震数据体,开展精细构造解释,在以往构造评价和储层评价的基础上,通过对E23、E_3~1及主要油层组的精细构造解释,准确落实构造形态,刻画断裂的分布规律,为油田的后续开发,提供了有力的技术支撑.     

关于潜油电泵井的节能潜力探讨

潜油电泵是油田的一种重要的机械采油设备,同时也是油田的主要耗能设备之一,找出其节能潜力对提高能源利用效率,增加企业的经济效益,缓解经济社会发展面临的能源和环境约束等具有十分重要的意义.本文从油田的实际生产出发,以我国某油田为例,对英潜油电泵井的运行现状作出分析,提出具体的节能技术改造措施和方案,并找出其节能潜力.     

川东南地区茅口组地震相分析

针对勘探程度不高、钻井分布不均且以二维地震资料为主的川东南地区,通过对茅口组地震相分析,发现了中高频席状地震相、中低频席状地震相、前积地震相、丘状地震相、波状地震相等多种类型.通过单井相分析和井旁地震响应模式的建立,结合区域地质背景分析并以沉积模式为指导开展了沉积相展布特征研究.认为茅口组沉积时期研究区在开阔台地相的整体背景下,局部发育的点礁、滩体、风化壳喀斯特均是有利储层发育部位,是隐蔽油气藏潜在勘探领域.     

塔里木盆地巴麦地区石炭系低速异常碳酸盐岩的解释

巴麦地区即塔西南巴楚隆起一麦盖提斜坡,具有台地边缘一斜坡的古构造和古地理背景,这种台地边缘和典型的浅滩沉积暗示了该区具有发育生物礁的环境特征.区内先巴扎(XBZ)600 km2三维地震探区石炭系发育了巴楚组(C1b)生屑灰岩及标准灰岩、小海子组(C2x)3套灰岩,其中小海子组发现特殊响应碳酸盐岩,主要表现为厚度增大、频率增高、多出一条波峰同相轴的地震响应特征.通过差异厚度法、底面拉平法、地震属性法、正反演模型法,结合野外露头、岩心、镜下观察、录井、沉积相等综合分析,可初步推测该低速异常体为厚度增加、孔隙度增大的近东西向台地边缘障壁礁所致.礁体东西走向延伸超过25km,礁核区小海子组灰岩最厚62 m,礁外的小海子组50 m.台缘斜坡南倾.坡度陡,水平宽度1～2 km.礁后生屑滩北倾,坡度缓,水平宽度3～6 km.受色力布亚断裂带遮挡.该生物礁储层可以形成有利圈闭,面积约为42 km2,厚约45 m.     

地震勘探技术在济源西南部丘陵地区的应用

地震勘探技术广泛应用于平原地区的煤资源勘查,效果较好。以济源西南部丘陵地区的某煤勘查项目为依托,分析了在低山丘陵地带复杂地震地质条件下,地震勘探在选取合理的施工参数和处理参数后,仍可以取得较好的勘探效果。     

黔东同古金矿床成矿流体地球化学探讨

黔东同古金矿床产于元古界下江群浅变质岩系中,矿体严格受构造控制,矿体划分为层间脉型、破碎带型和网脉型3种类型,矿石贫硫化物。通过对同古金矿床流体包裹体的成分、氢氧同位素及包裹体CO2的碳同位素特征研究分析,认为同古金矿床主成矿阶段的成矿流体是以大气降水为主的富含CO2的弱酸、弱还原混合地热流体。     

地震勘探技术在范县一带找煤中的应用

煤炭资源是我省的主要能源之一,近年来随着煤炭资源的强力开发,寻找新的煤炭开发基地成为当前一项紧迫的任务,而地震勘探技术是目前寻找煤炭资源最有效、最成熟的一种地球物理勘探方法。本文以地震勘探方法在范县一带找煤中的应用为例,通过分析该区地质背景进行地震测线布置,经过认真试验优选了地震施工参数,获得了高质量原始资料,资料处理过程中采用高精度数据处理方法获得了质量较好的处理效果,通过综合解释地震资料,取得了很好的地质成果,从而说明地震勘探技术在找煤中具有良好的应用效果,为同类地区找煤提供了参考依据。     

古希腊与古罗马音乐文化之我见

古希腊与古罗马音乐开创了西方音乐文化的先河。两者虽然是继承与发展的关系,但是古罗马在对古希腊音乐文化继承和发展的同时,表现出别样的音乐观。本文就古希腊与古罗马不同的音乐观进行分析、梳理,以较为客观、系统地认识这一时期的音乐文化。     

重庆高校推进产学研合作的案例分析

以重庆大学、重庆邮电大学和重庆理工大学为例,剖析重庆高校推进产学研合作的基本模式,已经取得的突出成绩,分析总结其基本经验.从完善政策法规体系、强化经济调控、建立组织机构、加强中介建设及开展国际产学研合作等方面,提出了深入推进重庆高校产学研合作的对策建议.     

Benzimidazole resistance in cyathostomes in horses in the Ukraine

The efficacy of treatment with cambendazole was tested in 1-year-old horses on a farm in Dubrovka, Ukraine. Thirty-five horses were treated. Their egg output was compared on the day of treatment and 14 days later with that of 33 untreated horses. Before treatment the mean number of eggs g-1 faeces was 614 in the controls and 766 in horses that had been treated. After 14 days the mean egg output in the controls was 580 and in the treated horses 369. This means a reduction of 54.5%. Only cyathostome larvae could be cultured from faeces collected after treatment. It can be concluded that benzimidazole resistance in cyathostomes is present in the Ukraine.     

Apoptosis in experimental myocardial infarction in situ and in the perfused heart in vitro

We report the appearance of apoptotic cells in experimental myocardial infarction (rabbit heart) in in situ and in vitro preparations. Apoptosis was recognized by intravital staining with Hoechst 33342 (Ho342), by nick-end labeling (TUNEL) and by DNA laddering. A steady rise in the relative number of apoptotic cardiomyocytes (apoptotic index) was noted in in situ preparations. Apoptosis was first noted 6 h after the onset of ischemia with its highest value occurring after 72 h. Apoptotic nuclei were absent in remote areas of the left and right ventricles. Apoptotic nuclei within the infarcted area showed diminished intensity of Ho342 fluorescence. Three days after ischemia, a border zone adjacent to the infarcted area consisting of apoptotic macrophages was recognized. A novel finding was the appearance of apoptotic cardiomyocytes in the isolated perfused ischemic heart. Occurring as early as 50 min after the onset of ischemia, a high apoptotic index was present adjacent to the ligature placed around the coronary artery. This observation provides the opportunity to selectively examine factors leading to apoptosis in the ischemic heart under controlled experimental conditions.     

Fractures in childhood in Khartoum

A prospective study of fractures in 231 children received at Khartoum North Teaching Hospital(KNTH) was carried out for a period of six months. The incidence of child fracture rated as one per day, then it increased from the age of 5 years onwards in boys and between 6 and 8 years in girls. Most injuries were sustained during the day time, especially between late afternoon and sunset. 82% of injured children presented to a medical facility, while 18% were taken to native healers first. Non-road traffic accidents accounted for 84% of the fractures mainly due to sports, domestic injuries and falls; whereas road traffic accidents were 16% and occurred mainly in pedestrians. Forty three percent of the fractures needed only first aid and splintage while 42% needed closed reduction. Thirty one percent of all patients were treated as inpatients. The long bones were affected in 91% of all fractures, the commonest site being the distal end of the forearm (26%), followed by supracondylar fracture of the humerus (15.6%). In the upper limb, left-sided fractures predominated. The epiphyseal injuries were 3.5% of all fractures, mainly at the distal radial epiphysis. Boys were commonly affected between 13-15 years of age. Open fractures constituted 9.8% of the series and were mainly due to traffic accidents in town dwellers, the most vulnerable bones were those of the leg and foot. Pathological fractures accounted for 2.2% and were due to bone cysts and osteogenesis imperfecta. The problem of child safety and the preventive measures need to be more stressed.     

Heatstroke in runners in Oklahoma

It is a common opinion that general surgery is the first step for whoever approaches a surgical discipline, and that whoever practices training in general surgery should learn the rudiments of each surgical branch. The role of microsurgery in the training of the general surgeon has not been well-established. Clinical applications of microsurgery in general surgery are few and are rarely required, and have been connected strictly to restricted indications. However, we think that microsurgery could be very useful to the general surgeon because it allows the execution of experimental research on rats, the only possibility permitted by law. In these studies the microsurgeon can perform many times and in a short time the same surgical operation, thus improving his skill, and easily getting familiarity with surgical instruments and sutures.