This method can be used for an overall and precise analysis of the structure of the derrick, and a case study shows that this method is suitable for all kinds of derricks.

實例測試和計算機載荷模擬試驗表明特级大黄A片免费墦放久久，這種方法可使井架的試驗和分析更加全面欧美三级久久、準確、可靠wwww.wwwww在线黄色视频，而且適用于各種類型的井架不卡A片在线看网站。

Company's main products are: pressure vessel, with a long-stroke pumping unit, oil production wellhead equipment, swimming pulley, packer, tubing anchor, farm trailers, operating Derrick, Derrick Crane , Able to drive me assembly, and other oilfield machinery parts, in May 2001 through the ISO9002 quality system certification.

公司生產(chǎn)的主要產(chǎn)品有：壓力容器AV可以看的免费网站、帶式長沖程抽油機、采油井口裝置观看永久免费视频污网站、游動滑車欧美一级高清免费播放、封隔器、油管錨午夜国产激情视频、農(nóng)用掛車人人摸天天干、作業(yè)井架、井架天車欧美日视频、絞傳動箱總成天天色天天操综合、及其它油田機械配件，于2001年5月通過ISO9002質(zhì)量體系認證亚洲欧洲自拍拍偷片区。

The fixed set of pulleys located at the top of the derrick or mast, over which the drilling line is threaded.

位于重型井架或桅架式井架頂部的固定的滑輪組国产麻豆日韩在线观看网站视频，通過該滑輪組鉆井鋼絲繩進行穿繩。

Derrick on Tianlun and rope set up the runway, the installation of hoists, winches double (3t) double rope traction, transport staff and lining materials; hoists the runway with a winch (2t) to tighten, In addition, the site symmetry at the bottom of the derrick cantilever mast for two, with two winches (3t) upgrading of materials, two separate winch (1t) Luffing operation.

井架上設(shè)天輪和鋼絲繩跑道亚洲欧美另类图片区，裝置吊籠黄色片看看一区二区，用雙卷揚機（3t ）雙繩牽引，運輸人員和內(nèi)襯材料四虎在线永久免费视频网站；吊籠跑道用一臺卷揚機（2t ）收緊欧美精品日韩精品l视频，另外，在井架底部對稱部位設(shè)懸臂桅桿兩臺精品自拍一区，用兩臺卷揚機（3t ）提升物料特级一级黄色片，另設(shè)兩臺卷揚機（1t ）變幅操作。

Some large derricks are mounted on dedicated vessels, and are often known as "floating derricks".

一些大型井架安裝在專用船只全部色费特色黄特色大片看片，也常常稱為&浮動井架&欧洲熟妇色ⅩXXXX欧美老熟妇。

The usage of this method simplifies the evaluation of the bearing ability of the oil derricks.

提出了將位移法應(yīng)用于石油井架的承載能力評定之中，利用該種方法將使石油井架承載能力的評定測試變得更加簡單免费看欧美强奸视频。

In oilfield, downhole derricks are the main part that bears the loads in the downhole operation hoist system.

在油田起下油井管柱的各種施工中亚洲啪啪网站，作業(yè)井架是主要的承力構(gòu)件，井架的承載性能對井下各種施工作業(yè)產(chǎn)生直接影響色人人色人人操。

A torque tube assembly is mounted into the mast and supported in three (3) areas; the standard torque tube option is for a 32 m (105 ft.) telescoping mast. Other lengths and configurations are available upon request.

一個扭矩管總成被安裝于井架并且在三個區(qū)域支持扭矩管特级毛片A级毛片在线播放www；標準的扭矩管選擇是用于32米(105英尺)的可伸縮的井架，其它長度和配置根據(jù)需求可選国产5加勒比区精品视频。

In order for Foremost to supply the customer with a proper torque tube that will meet their requirements, the customer is to supply Foremost with a set of drawings for the mast, which the torque tube is being mounted into, indicating the cross members which the stabilizer mounts are to be welded to.

為了Foremost向客戶提供符合他們所要求的合適的扭矩管婷婷亚洲色图日韩，客戶要向Foremost提供一整套將要安裝這套扭矩管的井架的圖紙，指明那些穩(wěn)定器將要被焊接安裝上去的橫梁亚洲中文字幕三级在线网络，為了焊接這些穩(wěn)定器到井架的橫梁上精品日韩手机版视频在线观看免费，F(xiàn)oremost將會提供建議的焊接工藝。

The first-order optimization algorithm was used to optimize and assess the updating parameters. The simulation analysis on an in-service rig derrick was carried out using the linear buckling, geometric nonlinear and double nonlinear methods.

以某型號在役鉆機井架為例欧美欧美日韩视频二区，利用該方法并結(jié)合線性屈曲法人妖专区综合无码第一页、幾何非線性法yw最新网址、雙重非線性法，對其進行了仿真建模和承載性能仿真分析又黄又粗又长又硬又爽的视频，確定了該鉆機井架的極限承載力欧洲免费精品视频在线、破壞形式及危險部位。