针对微侧向/微电极测井仪改为微球/微电极测井仪后,与3506XA脉码仪不能匹配的问题进行了分析,提出了对3506XA脉码仪电子线路进行改进的方法,改进后仪器能够满足组合测井需要,各仪器间元干扰,经近百口井应用,工作稳定。
Methods for 3D PDC bit parameterized tooth arrangement are introduced by using self-defined function in PRO/ENGINEER. The process of establishing 3D solid model of tooth arrangement is described by using 3D parameterized table for PDC bit tooth arrangement. Theoretical calculation shows that the model is accurate and reliable, by which an effective way is provided for improving the efficiency of 3D PDC bit tooth arrangement for new PDC bit development.
During the forming process of a basin, the messages of ore - forming fluid, such as tempreture and pressure have been preserved in mineral fluid inclusion, which becomes widly used in the thermal history of the basin. This paper introduces the applied status of fluid inclusion in palaeofethermal and the palaeothermal gradient, analyzes the advantages and disadvantages, and points out that the method of comparison, verification and complementation of several palaeotempreture scales with one another is the most effective way to study the thermal history of the basin
According to different physical properties of heavy oil in Guchen and Xinzhuang oilfield in the northern slope of Biyang sag, and chlorofoum bitumen "A", heavy oil com-plosition and saturated hydrocarbon chromatographic analytical data of oil - bearing sand in nine wells, the geo-chemical features and heavy oil consistency variance degree of the two oilfields have been compared and analyzed, the correlation between heavy oil complosition and unconformity which is close to Neogene has been studied, and the relationship between the heavy oil complosition and burying depth and variance degree has been discussed. The results show that the reservoir generation period is in accordance with the heavy oil consistency variance degree in this two oilfields, that is earlier hydrocarbon generation in Gucheng results in higher heavy oil consitency variancedegree than that of in Xinzhuang.
The 3D seismic exploration and VSP are both relatively mature exploration technique, while the 3D- VSP is a new seismic exploration method, which integrates 3D seismic acquisition and VSP. Through the effective analysis of its data- gathering design and approach, frequency spectrum, signal - to - noise ratio and wave field, the precision of seismic section is effectively improved. In this way, it provides foundation for confirming structure, enlarging and finding traps, defining reservoir types and hydrocarbon development evaluation. Good geological effectiveness has been acquired through the application in Biyang sag.
Northern slope of Biyang depression is a fault - developed area. Because of later tectonism and complicated underground water system caused by surface water filtration, high resistivity oil layers, low resistivity oil layers and high resistivity water layers coexist in the same formation, which makes it difficult to identify low resistivity oil layers. Based on the rock elastic mechanics theory and the method of difference ratio of equivalent elastic modulus, fluid property of intergranular sandstone can be distinguished. In combination with other methods, low resistivity oil layers are identified and the coincidence rate of logging interpretation is greatly enhanced. All these can be exemplified from the case in northern slope of Biyang depression.
Previous study on Kendong region which is near to the Tan - Lu Faults finds that the right lateral strike slip of Tan - Lu faults in Cenozoic has no effect on the hydrocarbon accumulation in Kendong region. Actually it is the bumped ancient physiognomy that controls the hydrocarbon accumulation in neogene. Through the analysis on stress field, palaeogeomorphology and spatial distribution of faults, Kendong region is considered to be 'concealed' strike - slip fault. The strike - slip fault has great influence on the hydrocarbon accumulation in Kendong region: on one hand it controls the spatial distribution of palaeogeomorphology, on the other hand it assumes oil - gas transmitting function in the process of hydrocarbon accu-mulation
Analyses of large amount of volcanic rock samples on the northern edge of Dabie Mountain show that the geo-chemical behaviors of the main elements of the volcanic rocks in the study area are alkali-calcic, while that of the rare earth elements are of enrichment of light rare earth elements. The relationships between the compositions of volcanic rocks and the tectonic settings are further studied. It is believed that the volcanic rocks would have been formed in a tectonic setting related with the decoupling of the root of the orogenic zone after plate subduction and collision.
As a unique Mesozoic sedimentary basin of marine and transitional facies in the eastern part of China, Sanjiang basin was intensely reconstructed by the tectonic movement at the end of early Cretaceous, thus its prototype basin is quite different with the present residual basin. The thermal evolution of organic matter was in mature to highly mature phases. The Upper Jurassic, Lower Jurassic and Tertiary source rocks were developed, thus hydrocarbon sources were relatively rich. Two groups of faults and unconformities, resulted from the multiphase tectonic movements and volcanic activities, acted as the favorable hydrocarbon migration pathways. There were several trap types and the formation time of which was relatively early and matched well with hydrocarbon generation and expulsion. Two different types of plays occur in the western and eastern parts with large exploration potentials.
Included angles between hole - axes and bed boundaries are different in deviated wells and the measuring devices operate in eccentric positions, thus the influences of surrounding rocks on the measurements are different with that in vertical wells and the old correction charts are no longer applicable. Based on the theoretical deduction and calculation of the response function of the 1503 dual induction tool, the influences of measurement factors on response curves are analyzed, side- bed correction charts of induction log data are constructed at different relative dip angles, and continuous side- bed correction methods are studied. Side - bed correction of the induction log data in deviated wells can make the resistivity curves after correction being more close to the initial true geophysical values, so as to improve the quality of logs and the coincidence rate of logging interpretation.
孤东油田稠油单元油井目前多数已到了第4～5吞吐周期,周期产油和周期油汽比已跨过峰值阶段,开始逐渐下降,开发效果逐渐变差.同时稠油单元存在着边底水活跃,地层压降小的问题,无法通过实施大规模转汽驱来提高采出程度.为此通过对实施井网加密进行论理研究并进行先导试验获得较为合理的井网密度和蒸汽吞吐井距.先后在KD521和KD53单元实施,平均提高采收率4.0%,增加可采储量38×104t.
对于水敏油藏注水开发,必须进行防膨预处理措施,但是目前常规的粘土稳定剂对于新注水的粘土矿物有一定的抑制粘土膨胀的作用,而对于已经发生粘土膨胀的地层作用不大,为此开展了缩膨剂的室内实验研究,通过大量的实验发现:缩膨剂在防膨和缩膨性能上都优于常规的粘土稳定剂,它在油田注水中,特别是水敏油藏还是具有很好的应用前景.
长输管道使用的辐射交联聚乙烯热收缩带出现的空鼓及粘结力试验不合格是目前困扰长输管道施工的两大技术难题.空鼓的产生主要是施工工艺不完善所致,粘结力试验不合格主要是部分质检人员使用了不正确的检验方法.通过研究分析,提出了解决空鼓的办法和应对标准进行补充完善的建议.
声-电成像测井是为解决非均质性储层难题而新发展起来的一种测井方法.文中从声电-成像测井原理出发,通过对成像图的颜色、形态、地球物理意义、地质意义的研究分析,结合岩心资料,建立起一套声-电成像解释基本模型.实际生产中,在岩性判定、裂缝识别、构造分析等基础地质研究方面,取得了很好的应用效果.
针对石化企业提升企业整体素质的要求,剖析了市场经济条件下石化企业人力资源培训工作的重要性,分析了当前现状和存在的问题,提出了培训工作的具体思路与对策.
鄂尔多斯大牛地气田测井资料的采集由多种系列的测井仪器完成,不同仪器所采集的资料存在一定的系统偏差.为了使测井资料具有统一的评价标准,增强各井资料的可比性以及地质参数计算值的准确性,有必要对测井资料进行标准化处理.文中介绍了大牛地气田标准化处理的方法-标志层法和统计关系法对常规测井中补偿密度、补偿声波、中子孔隙度曲线的处理方法和步骤,并对两种方法进行了比较分析.最后得出了在有标志层时首选标志层法,无标志层时用统计关系法的结论.
应用盈亏平衡分析,从经济学的角度,研究了天然气藏开发的经济极限产量计算方法,在此基础上,根据地层压力与产量的关系,得到了相应的极限地层压力,经在实践中应用,取得了较好的效果.
在社会主义市场经济体制和现代企业制度下,现代企业的成本管理已经发生了很大的变化.重点介绍了现代成本管理的四种新理念(成本效益理念、战略成本观念、成本动因观念和成本的系统管理观念)以及与传统成本管理的对比,以体现现代成本管理的现实意义.
大功率超声波解堵工艺技术是检泵作业时将超声波作用于油层,使堵塞物松动、分解,离开孔隙通道,随液体排出油井,达到油层解堵增加油井产量目的.现场应用结果表明,该工艺技术简单合理,投资风险小,对地层、井下设备及井筒管柱无损害,技术适应性强、见效快,具有良好的推广应用价值.
