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- This is the BHA[bottom hole assembly] log. 這是井下鉆具組合的記錄本。
- Make up bottom hole assembly (BHA). 組合下部鉆具。
- Please pull out of hole and change bottom hole assembly! 請起鉆,換下部鉆具結構!
- Computer simulation of drillstring axial vibration and online monitoring of bottom hole condition. 鉆柱軸向振動(dòng)仿真與井底狀態(tài)監測方法探討。
- When the flange hole of coal blower casing and inlet box is countersunk, the problem of connecting hole back spot facing can be effectively solved. 它可以有效地解決在锪煤氣鼓風(fēng)機鑄鐵機殼和進(jìn)氣箱的開(kāi)箱法蘭把接孔時(shí),連接孔背面的锪平問(wèn)題。
- According to this problem,this paper proposes a modified isochronal well test with bottom hole liquid loading. 針對這個(gè)問(wèn)題,提出了一種存在井底積液時(shí)的修正等時(shí)試井資料解釋方法。
- Bottom hole pressure changes complicatedly in suction well of double porosity reservoir. 雙重孔隙介質(zhì)油藏油井抽汲生產(chǎn)將使井底壓力變化十分復雜。
- A kind of rotary steering stabilizer used in a common rotary bottom hole assembly to control well path was developed. 在普通旋轉鉆具的基礎上,研制了一種旋轉的近鉆頭穩定器,它可以將鉆柱穩定在井眼截面的需要位置,以控制井眼軌道。
- The basic assumptions, equations and boundary conditions for bottom hole assembly (BHA) analysis were discussed. 討論了下部鉆具組合分析的基本假設、基本方程和相應的邊界條件。
- To study the passive force characteristics of the bearingless slice motor,by 2D magnetic circuit analysis,the axial suspension force model and back torque model are built for non-PM motor. 為了研究無(wú)軸承薄片電機的被動(dòng)懸浮特性,通過(guò)2D磁路分析的方法,建立了非永磁薄片電機的2D軸向懸浮力模型和回復力矩模型,并進(jìn)行了有限元仿真驗證。
- The modified isochronal well test data with bottom hole liquid loading will have abnormity, causing a fail of processing with the original theory or much error. 摘要存在井底積液的修正等時(shí)試井資料會(huì )出現異常，使原有理論無(wú)法處理相應的測試資料或處理的結果誤差較大。
- The security on the Eastern side was still full of holes back then. Then what? 東方陣營(yíng)的安全措施那時(shí)候真是千瘡百孔。然后呢?
- With the fractal geometry theory, this paper puts forward a new rock drillability testing method by selecting detritus from bottom hole as object. 利用分形幾何理論，研究了鉆井過(guò)程中巖石破碎機理及形成過(guò)程，提出了一種以井底返出的巖屑為對象的巖石可鉆性測試方法。
- The bottom hole flow physical model of a kind of PDC coring bits is established considering the effect of junk slot and teeth layout in this paper. 以一種現場(chǎng)常用的PDC取心鉆頭為原型,充分考慮排屑槽和切削齒對于井底流動(dòng)的影響,建立了與實(shí)際相接近的PDC取心鉆頭井底流場(chǎng)的物理模型。
- Toughened glass front door and high density net hole back door, can meet the request of equipment protection, ventilation dispersing air, observing machine operation status from outside. 鋼化玻璃前門(mén)及高密度網(wǎng)孔后門(mén)，可同時(shí)解決設備保護、通風(fēng)散熱、外部觀(guān)察機器運行狀態(tài)三方面的使用要求；
- With the progress of drilling technology, bottom hole assembly (BHA) has been developed rapidly to control well trajectory. 隨著(zhù)鉆井技術(shù)的進(jìn)步，以控制井眼軌道為目的的下部鉆具組合發(fā)展迅速。
- In routine overbalanced drilling, the bottom hole pressure towers above the formation pressure so that the mud fluid will leak into the formation. 常規過(guò)平衡鉆井方式打開(kāi)油氣層時(shí)，井底壓力高于地層壓力，鉆井流體會(huì )向地層滲濾甚至漏失。
- The modified isochronal well test data with bottom hole liquid loading will have abnormity,causing a fail of processing with the original theory or much error. 存在井底積液的修正等時(shí)試井資料會(huì )出現異常,使原有理論無(wú)法處理相應的測試資料或處理的結果誤差較大。
- The given reservoir dimensionless pressure express formula and pressure drop curves can be used in condensate gas wells and the gas wells with accumulated fluid in bottom hole. 給出的氣藏無(wú)量綱壓力表達式及壓降曲線(xiàn)，還可適用于凝析氣井及井筒帶積液的氣井。
- In the course of transmission, mud pulse signal mainly disturbed by drilling pump,engine in the bottom hole, air bladder contained in mud and movement of drilling equipment. 泥漿脈沖信號在傳輸過(guò)程中主要受鉆探泵、井底動(dòng)力機、泥漿中的氣泡及活動(dòng)鉆具的干擾;
