石油深井地震观测中“井管突升,地面崩裂”异常机理及其社会影响对策研究

１９７９年以来,天津地区先后有９口石油深井出现了“井管突升,地面崩裂”异常现象,本文通过这９口井的基本情况,分布特点,异常类型等方面的分析,对这一现象产生的机理进行了研究;认为;这一现象的发生是由于地面局部沉降的结果,并对其进行数值模拟,力学解释,同时提出了安定社会的三项对策。     

Coupling Effect of Riser on Integrated FPS in Deepwater Area

The main challenge in predicting global responses of floating vessels in deepwater and ultra-deepwater areas comes from the system's coupled effect.In this paper,the coupled approach is used to analyze effects of riser on floating system in deepwater.The analysis results show that the coupling effects of risers will mainly affect the low frequency (LF) motions of the system.That is because risers will provide the system with a significant low frequency (LF) damping which will vary with the sea states.Under ...     

Experimental Research of Hexagon Multihole Armour Block on Breakwater

This paper introduces a new kind of armour block - hexagon multihole block on sloping breakwater. It has great characteristics such as good interlocking, strong resistance against waves and saving concrete. Through the hydraulic model test, the mechanism of stability of the block has been proved and the relations between stability and wave height, wave period, water depth, slope, laying method, porosity and cushion have been found. The effect of weight on steadiness have also been discovered. Finally, the method of design and some formulas are given.     

NMR技术评价油田高温堵剂调剖效果

开采稠油的主要方式是注蒸汽，其中包括蒸汽驱和蒸汽吞吐，随着蒸汽吞吐的次数增加，稠油的采出量依次递减。由于油层的非均质性严重，蒸汽首先进入高渗层，高渗透地层的稠油首先被采出，低渗透率地层采出很少，之后的蒸汽都进入高渗低层，即产生汽窜，所谓的低效蒸汽，蒸汽冷凝后形成热水，受到重力作用进入底部油层，降低了蒸汽的利用率；同时，由于蒸汽的重力履和沿高渗透地层窜流，使蒸汽在地层中的波及系数降低。为了克服蒸汽驱中的问题，国内外学者进行了大量的研究。通过注入一种流体－调剖剂，由于它的高粘度高渗透层后，将减少高渗通道的渗透率，消除“汽窜”，封堵高渗透地层，提高中低渗透油层的动用程度，提高原油产量和采收率。本文利用核磁共振成像（NMR）无损检测技术，对蒸汽驱SAD－□型高温调剖剂进行岩心动态评价实验，考察该调剖剂的热稳定性以及堵剂的封堵效果。     

应用地质和地震反演信息进行三维沉积微相随机建模

探讨了综合应用地质及测井约束地震反演信息进行三维沉积微相随机建模的基本原理、思路与方法，并以渤海湾盆地某区块新近系明化镇组河流相储层为例，说明这一研究过程的基本步骤，包括井眼沉积微相解释、测井约束地震反演、波阻抗与地质相的概率关系分析、随机模拟方法选择、地质统计特征分析、三维随机建模、随机模拟预测的多解性评价。研究表明，波阻抗与沉积微相之间具有一定的概率相关关系。综合应用包括地震信息在内的多学科信息进行沉积微相随机建模，可对储层预测的多解性进行有效评价。