查询词典 tubing

In this article, a new theoretical model on diametral growth of coiled tubing under the action of an internal pressure is derived based on fatigue cyclic softening and elasticity and deformation plasticity theories.

根据疲劳循环屈服强度衰减模型和弹塑性变形理论，推导了连续油管在内压作用下的直径增长的理论模型。

Then, a logic computational diagram is constructed for calculating diametral growth by assuming fatigue cyclic softening, namely yield strength reduction as tubing fatigues.

再通过合理的假设，建立用于计算直径增长的计算机逻辑框图。

A finite element incremental weighted iteration method, which can avoid divergency and speed up the convergence process,was proposed to solve the problems of tubing buckling in deviated wells.

建立了直井中有重钻柱非线性屈曲平衡方程及相应的泛函表达式，构造了一种能避免发散并加速收敛的有限元增量加权迭代法求解斜直井中钻柱屈曲问题，首次采用直接求解非线性特征值的方法来分析钻柱屈曲问题。

They do not require an external hydraulic pump or tubing, but operate by moving hydraulic fluid from one side of a double-acting cylinder to another.

它们不需要外部液压泵或管，但经营，从一个一个双作用液压缸端到另一个。

For this small little piece I use a combination of " stainless tubing, 1" dowel and a 1 3/8 section of a shovel handle!

为这个小小作品我使用相结合的6.3 "不锈钢管，一"柱和1 3 / 8 一节一铲处理！

We applied high quality of steel from Japan and the United States for raw materials , oil drilling industry as market, advanced technology and equipment as means, financial support as backing to rapidly grow up as a integrated enterprise with a large scale of production and marketing channel for oil casing, pipeline , drill pipe, drill collar, refinery tubing etc.

我们以日本、美国的优质钢材为原材料，以石油钻采行业为市场，以先进的技术装备为手段，以金融界的资金支持为后盾迅速发展成为可以大量生产和供应油套管、管线管、钻杆、钻铤、炼化管等产品的综合性企业。

Comparison of the SISS with the others shows that the SISS solved the problem of conventional magnetic azimuthal surveying method in ferromagnetic casing tubing drill stem or magnetic formation and its measurement precision is better than that of frame gyroscopes surveying system .

与传统的磁方位测量方法和框架式陀螺测量系统的比较结果表明，该系统克服了磁方位测量方法在套管，钻杆，油管以及在磁干扰地层中测定方位时存在的问题，其测量精度优于框架陀螺系统。

Drill stem test ; tubing conveyed perforation ; design

钻柱地层测试；油管传输射孔；设计

On the basis of the criterion of constant magnetic inspection, an apparatus for testing the coiled tubing ellipticity with constant magnetic field is developed.

针对连续油管储藏、使用和寿命分析对椭圆度检测的要求，根据恒磁检测原理和简化等效磁路的计算分析，研制了连续油管椭圆度恒磁检测装置。

The construction method of indoor gas copper tubing embedment, problems existing in the installation and the solutions are discussed, and the cost analysis is made.

探讨了室内燃气铜管暗设的实施方法、安装中出现的问题和解决方法，进行了成本分析。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。