“绕射积分偏移”的成象原理及提高其偏移剖面质量的探讨

“绕射积分偏移”的过程一直都是用绕射波收敛理论来描述的.但是这个理论不能解释为什么经过“绕射积分偏移”的剖面会有信噪比降低和弧形干扰的现象.在这时,我们用一个简单的数学模型,并理想化了一些条件,弄清了“绕射积分偏移”成像的真正原理.我们发现在任一CDP点下面的反射界面点的位置应与某一双曲线的顶点时间相当,这个双曲线正好处在与相应的反射t_0剖面上各道波至所形成的直线相切的位置上.在此结果的基础上,本文提出了减少干扰和改善剖面质量的有效措施.我们希望它能尽早为实际工作所采用.另外,本文也对目前流行的几种类型的所谓“克希霍夫积分偏移”进行评述并指出它们的缺点.     

“压胀松动”增产技术

岩石产生“压胀”的同时其孔隙度和渗透率也增加,且这种孔隙度和渗透率的增加是不可逆的。“压胀松动”增产技术就是利用岩石的“压胀”特性,利用炸药分级爆炸产生的爆炸波在地层的叠加来满足储层岩石产生“压胀”的条件,从而达到增加近井地带储层的渗透率、使油气井增产早的目的。文章对不同岩石“压胀”特性、“压胀松动”增产技术的基本原理进行了研究,对该技术的现场用炸药药量的计算及弹体进行了设计,对现场试验应用情况进行了总结。现场试验表明该技术对油气田开采具有较好的增产效果     

用Promax处理LD22-l“模糊带”地震资料

通过LD22-l构造地震资料目标处理,搞清了“模糊带”,引进交互处理系统是成功的.     

GEOLOGY OF THE PERMIAN "SUPER-GIANT" GAS RESERVOIRS IN THE GREATER PERSIAN GULF AREA

The Permian Dalan and Khuff Formations contain extensive gas reservoirs in the Greater Persian Gulf area. The Permian transgressive sea covered a vast area in the Middle East, and deposited a fairly thick sequence of shallow, epicontinental carbonates. These carbonates were deposited a fairly thick sequence of shallow, epicontinental carbonates. These carbonates were deposited unconformably on Lower Paleozoic rocks in western Iran and on the basement in Central Arabia. The term "Khuff Formation" has been widely used by oil companies in the region, but its equivalent, the Dalan Formation, is a new name currently being used in Iran.
The Permian Basin was an elongate trough, trending NW-SE, parallel to the Cretaceous-Tertiary Zagros geosyncline. The deepest part of the Permian Basin was in the extreme SE portion of the trough, in the vicinity of the present Oman Mountains, in which nearly 6,000 ft (1,830 m) of Permian sediments were deposited.
Porosity and permeability are generally low in these carbonates. However, secondary fracture porosity and dolomitization are commonly developed throughout these rocks. Permian reservoirs are capped by impervious strata, and the gas seems to be sourced from within the Permian section.     

鄂尔多斯盆地“崆峒山砾岩”成因初步分析

“崆峒山砾岩”是延长组在盆地西缘的相变产物,可能形成于延长组中晚期(长7-长1期),对应于鄂尔多斯西南缘前陆盆地形成期。其砾石成份以石灰岩砾石和砂岩砾石为主。通过与邻区前三叠系野外露头追踪对比,发现“崆峒山砾岩”中的石灰岩砾石与中奥陶统三道沟组灰岩特征相似,而石英砂岩砾石则与二叠系山西组砂岩特征相近,进一步的微观岩石学特征、稀土元素及微量元素特征对比结果证明了这一点。     

大庆油田“十三五”原油开发战略

开发战略是油田发展的灵魂和纲领。针对目前对油田长远开发战略的内涵不清晰、内容不完善等方面的问题,在明确油田开发战略的内涵及研究视角的基础上,总结回顾了大庆油田"十二五"开发战略,并通过多角度综合论证了大庆油田"十三五"产量战略调整方向,应用SWOT战略矩阵模型确定了不同产量构成调整次序及开发定位,并编制了多情景下的战略部署方案,为领导层决策发挥了重要的参谋作用。     

ON THE THEORY OF GROWTH FAULTING PART II (c): GENESIS OF THE "UNIT"

This paper forms the third and concluding section of the second part of a detailed and rigorous geomechanical analysis of the stability of overpressured, gently-sloping sediment layers presented in the Journal of Petroleum Geology, 2, 3, 1980 and 3, 2, and 3, 3, 1981. Parts II(a) and (b) considered stress equilibrium, related stress equations, types of overpressure, the representation of the stress state in Mohr space, and the plastic/elastic states of frictional materials in long fluid-filled layers, together with numerical and analytical examinations of slip lines and considerations of plastic flow and slip.
This concluding section introduces the effects of peak-strength and liquefaction phenomena, together with a consideration of the behaviour of purely cohesive materials, and contains also the six important conclusions derived from this study.     

"昆仑"系列汽轮机油的特性和选用

为了适应我国电力建设和汽轮机、燃气轮机组发展的要求，中国石油润滑油公司在传统的抗氧防锈汽轮机油和抗氨汽轮机油的基础上开发了KTP优质抗氧防锈汽轮机油、KTL长寿命抗氧防锈汽轮机油和KTG燃气透平联合机组用油等系列产品，介绍了上述汽轮机油系列产品的性能特点、技术指标和选用原则。     

海上LX油田储层地震“目标”处理方法

本文从提高子波分辨率的理论研究出发,进一步研究在常规地震资料处理过程中影响分辨率的因素,提供了排除这些影响因素和提高分辨率的方法。并通过理论模型和实际资料处理,总结出一套处理参数和流程,见到了较好的处理效果,比常规处理结果提高分辨率约四倍。     

THE EARLY TO "MIDDLE" CRETACEOUS LITHOSTRATIGRAPHY OF THE CENTRAL NORTH SEA (UK SECTOR)

A revised lithostratigraphical framework of the Early to "Middle" Cretaceous strata of the Central North Sea (UK sector) derived from the rigorous examination of more than 100 commercial boreholes is presented. previously published frameworks have tended toward oversimplification of the Early to "Middle" Cretaceous, as the interval was considered initially to be of minor importance with regard to prospectivity. However_: there is a general feeling in the industry that the Early to "Middle" Cretaceous is prospective. particularly with regard to subtle stratigraphical traps like the Kilda/Bosun and Scapa fields. It is inevitable that as more attention, due to hydrocarbon exploration, is paid to an interval that the stratigraphical models used progress from the simplistic to the complex. The framework presented here is the result of a pragmatic approach in that it is based upon the integration of previously published schemes. with the erection of new units derived from new analyses and interpretation. The complete lithostratigraphical framework is defined. explained and discussed with reference to borehole examples in the Central North Sea .     

答“商榷”一文的作者

1.从理论上讲,阻尼系数和频率联合起来是会对地震检波器‘相位差’产生影响的.但是,在‘不作指标一文中已明确指出:阻尼系数在0.55—0.70特定条件下,如果用f=10.05Hz的61只检波器做‘相位差’与阻尼系数散布图,并在计算相关系数后比较,确实发现阻尼系数与检波器‘相位差’呈不相关的结果,而频率则变为影响‘相位差’的主要因素(在N=119的‘相位差’与频率散布图上,则呈明显线性关系).2.在《关于检波器‘相位差’问题的商榷》一文中指出:除非在ω=ω_0处,检波器相位差才受频率控制,而在整个工作频带内则……”.     

三肇凹陷T2断层分维特征及与扶杨油层油气关系

三肇凹陷扶杨油层断裂发育具有规模小、密度大且密集成带的特点,其与油气关系不清楚.为此,利用分形理论研究断裂的复杂程度,并探讨了断裂维数与油气分布的关系.扶杨油层断裂盒式维数和信息维数集中分布在1.5～1.7.维数为断裂面密度、总长度、组合模式及成因机制综合度量参数,走滑成因、部分斜拉扭动成因和伸展成因的断裂密集带维数普遍大于1.65,油气主要分布在维数为1.45～1.55的区域,表明断裂密集带不是主要的富油构造.基于断裂活动规律分析,认为成藏关键时刻明水组末期活动的断裂为油气"倒灌"运移的通道,这些断裂多为断裂密集带的边界断裂,倒灌过程中通道断层的下盘阻力小,是油气主要的分流方向,因此油气主要富集在断裂密集带边界断裂下盘河道砂中.     

三维地震勘探在康平煤田“无煤带”研究中的应用

"无煤带"是康平煤田特有的一种构造现象;"无煤带"是指煤层缺失变薄至不可采的地带或条带;"无煤带"多分布于构造复杂地区,并且与该地区断层走向一致,而且均伴有一条或几条断层。通过对该区三维地震资料及正演地震模型的研究,发现煤层反射波振幅异常(振幅变弱)带恰恰对应着各种原因造成无煤区和煤层变薄区域。在1煤层底板等高线图上圈定出了1煤层反射波振幅异常带,这些成果为测区内采面划分、巷道布局和煤矿安全生产提供了有力的地质保证。     

石蜡雪花斑问题的分析与对策

对石蜡出现雪花斑的问题，从生产工艺过程、原料及自身特性等多方面进行了分析，明确了其主要原因在于原料本身和石蜡的成型、储存温度。通过研究，提出了解决全精炼蜡雪花斑问题的措施，即控制蜡板成型储存的条件或适量加入添加剂可以消除石蜡雪花斑。