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- However, with weight down and drilling rate up, vibration became unacceptable. 然而, 與重量 ??落和演練率在,上面震動(dòng)變成無(wú)法接受。
- In Yanchang oilfield, serious lost circulation often occur during drilling in Panlong and Zichang areas, directly affect drilling rate. 延長(cháng)油礦管理局在蟠龍、子長(cháng)等主生產(chǎn)區經(jīng)常遇到嚴重漏失井,直接影響了鉆井速度。
- The composite drilling is also successfully applied and the drilling rate increases 66%.Reasonable BHA can effectively control the well trajectory. 在小井眼開(kāi)窗側鉆工藝中成功應用復合鉆井技術(shù)，鉆井速度提高了66%25，選擇合理的鉆具組合可對井眼軌跡進(jìn)行有效的控制。
- PDC bit application effect are limited by short tripping time to avoid borehole underguage during drilling, drilling rate always decreased after short tripping. 但PDC鉆頭的使用效果與PDC鉆頭在鉆進(jìn)過(guò)程中短程起下鉆的次數有很大關(guān)系,每次短程起下鉆后機械鉆速都要明顯地降低。
- The rock drilling rate, service life and tungsten carbide toothavailability of the series of bits are obviously better than those of chip and button type bits. 該系列釬具鑿巖速度、壽命和硬質(zhì)合金片齒有效利用率均顯著(zhù)優(yōu)于片狀和球齒釬具。
- Testing and analysis of the vibration of ZJ15 rig substructure at two drilling rates are made. 對一現役ZJ15鉆機底座在兩種鉆井速度下的振動(dòng)情況進(jìn)行了測試和分析。
- Users wanted improved drilling rates and durability but also demanded significantly better usability. 使用者除了也要求的重要比較好的可用性之外想要改良的演練率和耐久性。
- Drilling rate equation in two variables 二元鉆速方程
- Prediction to drilling rate based on seismic data 基于地震資料的鉆速預測研究
- That period was a bright page in the history of Chinese literature. 那個(gè)時(shí)期是中國文學(xué)史上光輝的一頁(yè)。
- Let us hope that the period of this injustice will be over soon. 讓我們希望這個(gè)不公正的時(shí)期很快結束吧。
- A Manual Nerve Network for Prodiction of Deep Drilling Rate 一種預測深井鉆井速度的人工神經(jīng)網(wǎng)絡(luò )法
- STRATEGY OF IMPROVING DRILLING RATE IN DEEP WELL HARD FORMATION 提高深井硬地層鉆井速度技術(shù)難點(diǎn)及對策
- Childhood is a period of rapid growth. 幼年是生長(cháng)迅速的時(shí)期。
- He consulted the chronicles of the period. 他參考了這一時(shí)期的編年史。
- Keywords Deep drilling Hole deviation Drilling rate DHD machine; 深孔鑿巖;鉆孔偏斜;鑿巖速度;潛孔鉆機;
- He had to decide within a given period. 他得在一定時(shí)間內作出決定。
- She has a detailed knowledge of this period. 她對這段時(shí)期的情況了解地相當詳細。
- In that period auto sales hit a14-year low. 這時(shí)期汽車(chē)銷(xiāo)售量達到14年來(lái)最低水平。
- In this period, unemployment reaches record levels. 這段時(shí)間的失業(yè)人數又達到了創(chuàng )紀錄水平。
