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- Meanwhile,the downhole motor and MWD are not affected and wellbore trajectory can be controlled because of the continuous fluid phase flow throughout the bore hole. 同時(shí)由于從井口到井底始終存在著(zhù)連續的液相流,常規井下動(dòng)力鉆具和隨鉆儀器的性能不受影響,可以進(jìn)行正常的井眼軌跡控制。
- At the same deviation, the big WOB can be applied to increase the penetration rate in the straight hole. 在防斜效果不變的情況下，可采用較大鉆壓鉆進(jìn)，大大提高了直井段的機械鉆速。
- Moreover, regarding to reducing the longitudinal vibration of bottom string in straight hole, there is the problem of optimization grouping between WOB and rotary speed. 另外，在減小直井底部鉆柱縱向振動(dòng)的問(wèn)題上存在鉆壓與轉速的優(yōu)化組合。
- Capability of produce: injection rubber by import machine, milling rotor by abroad system, complete motor test system, downhole motor assembly and adjust. 工藝:進(jìn)口設備注膠,國外系統銑轉子,馬達整機實(shí)驗臺,自動(dòng)化鉆具組裝調試。
- The paper presents the calculation method of build-up rate of downhole motor with two bent subs in drilling short-radius horizontal wells, based on finite element reiteration. 提出了以有限元動(dòng)坐標迭代法為基礎的短半徑水平并雙彎馬達造斜率的計算方法，并給出了大曲率井眼中鉆頭側向力的二重非線(xiàn)性數值解。
- Location and spacing of sucker rod centralizers in straight holes. 直井抽油桿柱扶正器安裝位置及安裝間距。
- The extension drill rod which can be used for higher capacity drill,the drill hole can be extended to sezeral meetrs, when drilling the straight hole,the core lifter can help coring. 選用加長(cháng)鉆桿于較大能力的鉆機，可將鉆孔延深至數米，鉆垂直孔時(shí)，可采用取芯器配合取芯。
- In the straight hole,the complex metallic ion polymer drilling fluid system was used.The drilling fluid filtrate was controlled well,and the formation hydrating and swelling were prevented. 該井直井段采用復合金屬離子聚合物鉆井液體系,較好地控制了鉆井液濾失量,減少了濾液滲入地層,防止了地層水化膨脹。
- DPMA-1 can also be used to monitor the changes in the temperature and pressure of drilling fluid, so as help to judge the working condition of the downhole motor, and drilling fluid circulation resistance , etc. 該儀器在檢測井斜的同時(shí) ,還可監視鉆井液溫度、壓力的變化 ,由此判斷井底機具的工況、鉆井液循環(huán)時(shí)的沿程阻力等。
- According to the experimental device designed on the basis of the principle of similitude, the longitudinal vibration characteristics of bottom string in straight hole were investigated. 摘要為了了解直井眼中底部鉆柱的縱向振動(dòng)特性，利用根據相似理論設計出的鉆柱動(dòng)力學(xué)模擬試驗裝置，對不同參數組合下的鐘擺鉆具組合縱向振動(dòng)特性進(jìn)行了模擬實(shí)驗研究。
- A series of advanced technologies are applied,e.g.,DC electric rig,stepless speed regulation pump and top drive system,steerable drilling system,powerful downhole motor,and advanced drill bit. 該井采用了直流電動(dòng)鉆機、無(wú)級調速泵及頂部驅動(dòng)裝置、導向鉆井系統、大功率優(yōu)質(zhì)馬達、優(yōu)質(zhì)鉆頭等一系列先進(jìn)工藝，經(jīng)科學(xué)論證與施工，取得了滿(mǎn)意的效果。
- All third party equipment, such as downhole motors, MWD, stabilisers, drilling jars, must have detailed fishing diagram available. 第三方的鉆具如井下馬達、MWD、扶正器、震擊器必須有詳細的打撈圖。
- His strength in a crisis is an ace in the hole. 臨危不懼是他的看家本領(lǐng)。
- Evaluation of formation drill-ability anisotropy has important effect for preventing deviation of straight holes and planning drilling trajectories of directional wells. 地層可鉆性各向異性評價(jià)在直井防斜以及定向井井眼軌跡控制中具有重要的意義。
- Keep straight on until you get to the church. 一直朝前走就走到教堂了。
- It's three blocks straight ahead. 一直往前走過(guò)三個(gè)街區就是。
- He chiseled a hole in the door to fit a new lock. 他在門(mén)上鑿了個(gè)孔，以便裝一把新鎖。
- She gave it to me straight from the shoulder. 她坦誠地批評我。
- The bird picked a hole in the ice with its beak. 那鳥(niǎo)在冰上啄出了一個(gè)洞。
- The child has picked a hole in his new jumper. 孩子的新毛衣上勾了一個(gè)洞。
