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- SMDC short magnetic drill collar 短有磁鉆鋌
- We need a short drill collar to put here. 這里要接一根短鉆鋌。
- This is the dope for drill pipe thread. It can't be used for drill collar. 這是鉆桿絲扣油,不能用在鉆鋌絲扣上。
- Double Banana non magnetic,eutecticbrass, Rhodium over silver plate. 雙重香蕉插，無(wú)磁性結晶黃銅，鍍銀上鍍銠。
- The effects of geomagnatic field parameters in directional drilling,selection of non magnet... 探討了地磁場(chǎng)參數在定向鉆井中的作用、無(wú)磁鉆鋌長(cháng)度的選擇、測量數據的比較等問(wèn)題。
- The spiral drill collars are being tried to use. 螺旋鉆鏈正在試用。
- On this basis,a new kind of unbending drill collar tool has been designed,which is probably to be a new kind of inclination preventive tool. 為此，設計了一種壓不彎鉆鋌裝置，此裝置有可能成為防斜打直的一種全新的井下鉆具。
- Connect the feeling plate to the drill collars. 用鉆鋌連接探深板。
- The main products are:Slick Drill Collar,Spiral Drill Collar,Nonmagnetic Drill Collar,Heavy Weight Drill Pipe,square and hexagonal Kelly. 并可承接特殊規格的石油鉆具產(chǎn)品的生產(chǎn)。
- For the structure with Oh symmetry, the DVM-Xa results shows that the electronic configuration of ground state is non magnetic, and is disagreement with experimental data. 對于具有O_h點(diǎn)群對稱(chēng)性的結構,分子軌道的結果表明該團簇的基態(tài)是順磁性的,與實(shí)驗結果不相容;
- Do not make up or break out the bit on a single joint of DC. If this is absolutely necessary, always snub drill collar with the air tugger. 不要在一單根鉆鋌上卸鉆頭，如果確實(shí)需要這樣做，要用氣動(dòng)絞車(chē)拉住鉆鋌。
- The downhole stabilizer location adjuster, fixed between the bit and the drill collar, is a special tool for continual deviation control of a slant hole. 井下穩定器安放位置調節器是斜井旋轉鉆井時(shí)實(shí)施井斜連續控制的專(zhuān)用工具，安裝在鉆頭與鉆鋌之間。
- The drill pipe and drill collar of TZ3080/55 roughneck are designed modularized, effective and safe from 31/2" to 81/2" with light weight, small volume. TZ3080/55鐵鉆工重量輕，體積小，模塊化 的設計安全有效，適用于從31/2"到81/2"內的鉆桿 或鉆鋌上卸扣。
- On the basis of an analysis of the location and causes of the failure of drill collar threaded connection, a high-strength drill collar threaded connection is developed. 在分析鉆鋌螺紋失效部位及原因的基礎上，研制了高強度鉆鋌螺紋，它與普通鉆鋌螺紋相比，只是在外螺紋小端增加了一段光平的錐體。
- They measured the length of drill collars yesterday. 他們昨天仗量了鉆桿和鉆鏈的長(cháng)度。
- We need a short drill collar. 需要一根短鉆鋌。
- Particular requirements for magnetic drill presses 磁力鉆床壓力機特殊要求
- Spiral drill collars made in our plant are in accordance with API standard. 本廠(chǎng)制造的螺旋鉆鋌按照“API”標準生產(chǎn)和驗收。
- In drilling exploration and well drilling Industry, the drilling pipe and drill collar are key apparatus. 鉆桿和鉆鋌等管狀螺紋連接件，是鉆探和石油鉆井工業(yè)中的關(guān)鍵設備。
- Keywords Non magnetic steel;Magnetic inductivity;Rollers; 無(wú)磁鋼;導磁率;滾筒;
