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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!
- Considering the design parameters effect on the drilling tendency,the conception of drilling tendency angle was proposed as an evaluation index for the bottom hole assembly(BHA) design. 考慮鉆具的設計參數對鉆進(jìn)趨勢的影響,提出了鉆進(jìn)趨勢角的概念,以此作為底部鉆具組合設計效果的評價(jià)指標。
- 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。
- 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。
- Through the stress analysis, this paper discusses the relations of natrual stress, formation pressure, hole angle and azimuthal angle to sand production of reservoir. 通過(guò)對定向井、水平井生產(chǎn)時(shí)期的受力分析,討論了油氣層出砂與地層原地應力、地層壓力、井斜角、方位角之間的關(guān)系。
- 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。
- Hole angle should not exceed 15 degrees any where in the hole unless down hole geological conditions induce such deviation, such as acute fault intersections. 井斜角在井眼任何地方不應超過(guò)15度，除非井下地質(zhì)條件引發(fā)了此種偏離，如嚴重的斷層交叉。
- 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。
- 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。
- 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。
- By use of oriented perforator,a certain variance of angle and azimuth between actual perforated hole and former design is made which mainly caused by hole trace,perforated hole angle. 采用定向射孔,使得實(shí)際射孔孔眼與原來(lái)設計的具有一定角度和方位的偏差,主要有孔眼軌道產(chǎn)生的偏差、孔眼角度產(chǎn)生的偏差等。
- 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。
- 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;
