在用井架剩余承载能力极限状态评定方法

钻井井架因长期使用，各构件、构件间连接及井架整体都会产生不同程度的损伤与缺陷，严重影响井架的承载能力。与承载能力降低的同时，井架结构的应变参数也发生相应的变化。对此，为提高井架的使用安全性，提出以实测应变参数为基础的井架剩余承载能力极限状态评定方法，即采用以应变参数测试为主，辅以结构变形测量、腐蚀测厚、焊缝探伤等综合测试方法检测在用井架结构性能，应用权限状态理论评定在用井架剩余承载能力。应用该方法已测试与评定了98部在用井架，取得了满意的效果。     

The Role of TGFβ and Other Cytokines in Regulating Mast Cell Functions in Allergic Inflammation

Mast cells (MC) are a key effector cell in multiple types of immune responses, including atopic conditions. Allergic diseases have been steadily rising across the globe, creating a growing public health problem. IgE-mediated activation of MCs leads to the release of potent mediators that can have dire clinical consequences. Current therapeutic options to inhibit MC activation and degranulation are limited; thus, a better understanding of the mechanisms that regulate MC effector functions in allergic inflammation are necessary in order to develop effective treatment options with minimal side effects. Several cytokines have been identified that play multifaceted roles in regulating MC activation, including TGFβ, IL-10, and IL-33, and others that appear to serve primarily anti-inflammatory functions, including IL-35 and IL-37. Here, we review the literature examining cytokines that regulate MC-mediated allergic immune responses.     

Modal Analysis of Drilling Machine Derrick

In this paper,the finite element analysis software(ANSYS)is applied to the modal analysis of a ZJ30/1700CZs drilling machine derrick under a natural condition and a loaded condition,re-spectively.The preceding nine step natural frequencies and the corresponding mode shapes of the derrick are calculated.By means of the comparison of the natural frequency of the derrick with the design work frequency of the drilling machine and the analysis of the step mode shape of the derrick,the drilling machine derrick structure design is proved to be correct.     

在用井架承载能力及使用寿命测试系统的研制

在用井架承载能力及使用寿命测试系统能在钻井作业现场快速测出井架的最大承载能力、可靠性以及使用寿命。该系统研究属国内首创，达到国际先进水平，已用于辽河油田２０部开架的测试，创效益２６６．８万元。     

JJ225／42．5型井架整体起升时的应力及其测量

在整体起升ＪＪ２２５／４２．５型П形井架时进行了静、动态应力测量，共布点７２个。测量结果表明，人字架最大应力１２０．８ＭＰａ，井架最大应力１９１．２ＭＰａ，实际测量应力值与理论计算值十分接近，说明起升方法正确。影响应力的因素有起升钢丝绳的缠绕方法、钢丝绳两端在井架上的固定位置和井架各段的制造精度。六次起升实践表明，起升拉力最大达８５０ｋＮ，起升时平稳，无晃动、遇阻现象。     

地质钻塔拆装机及机装可逆式钻塔

指出了目前钻塔拆装存在的缺点，提出了解决的新途径，研制成功了四腿钻塔拆装机及机装可逆式四腿管子钻塔，认为这是地质钻塔发展的新方向。     

Potential wind power generation in South Egypt

Egypt is one of the developing countries. The production of electricity in Egypt is basically on petroleum, natural gas, hydro-power and wind energy. The objective of this work to prove the availability of sufficient wind potential in the wide area of deep south Egypt for the operation of wind turbines there. Nevertheless, it gives in general an approximate profile which is useful to the wind parks design for this area. The data used in the calculation are published and analyzed for the first time. The diagrams of the measured wind data for three meteorological stations over a period of two years (wind speed, frequency, direction), wind shear coefficient, the mean monthly and annual wind speed profile for every location are presented. Monthly Weibull parameters, standard deviation and coefficient of variation have been statistically discussed. A comparison of the rose diagrams shows that the wind speed is more persistent and blow over this region of Egypt in two main sectors N and NNW with long duration of frequencies from 67% to 87% over the year with an average wind speed in the range 6.8-7.9 m/s at the three stations. Evaluation of monthly wind energy density at 10 m height by two different methods was carried out. And the final diagram for every site shows no significant difference between them. The annual natural wind energies at 70 m A.G.L. lie between 333 and 377 W/m² for Dakhla South and Kharga stations, respectively, which is similar to the inland wind potential of Vindeby (Denmark) and some European countries. These results indicate that Kharga and Dakhla South locations are new explored sites for future wind power generation projects.     

液压起塔定向施工A型钻塔

结合XY系列立轴式岩心钻机的特点，研制开发了与之配套的AY8～15m系列液压起塔定向施工A型钻塔，并获得了国家实用新型专利。介绍了AY系列钻塔的结构形式、产品特点及应用实例。     

An onsite demonstration and validation of LiDAR technology for wind energy resource assessment

The investigation of wind resource at higher heights is very crucial in planning wind power project. Normally, this involves the installation of a high and costly meteorological mast with a cup anemometer and wind vanes. This investigation uses the new ground-based remote-sensing technique Light Detection and Ranging (LiDAR) to investigate the wind resource at higher heights. This paper describes the LiDAR technology principle and examines the potential of LiDAR measurement to estimate the wind resource at higher heights by conducting a measurement campaign at Tamil Nadu, India. The wind statistics were determined using the 10?min average time-series wind data monitored by ZephIR LiDAR. These include the Weibull parameters, daily mean wind speed, wind power density, wind energy density, vertical wind speed profile and capacity factor. The investigation reveals that the vertical wind speed profile measured from the LiDAR system has approximate closer values to the standard meteorological measurement.