borehole wall 中文意思是什麼

borehole wall 解釋
鉆孔壁
  • borehole : 測井圖
  • wall : n 1 墻壁；（石、磚等的）圍墻；城墻。2 （形狀、用途）像墻壁的東西，障壁；土堤，堤防。3 （礦井、容...
  1. Recommended practic e for sand control technology of artificial borehole wall

    人工井壁防砂推薦作法
  2. Along with the progress of drilling technology, many new types of bha such as steering motor assembly, dropping assembly with eccentric bend sub, dropping assembly with flexible connection are developed based on common building, dropping and holding assemblies. for using these bha, a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection. and its weighted residual solution is given. the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit, stabilizer, bend angle, diameter change, tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit. the software based upon this method runs well

    為了更好地應用各種新鉆具，建立了適用於對普通下部鉆具、導向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進行三維小撓度靜力學分析的數學模型，包括（ 1 ）微分方程； （ 2 ）鉆頭、穩定器、彎角、變截面、切點和井壁的邊界條件； （ 3 ）鉆頭的側向力和鉆頭轉角.給出了該模型的加權余量解.用該方法編寫的軟體應用效果良好
  3. Study of contact force between drill string and borehole wall in constant - curvature wellbores

    等曲率井眼中鉆柱與井壁間接觸力分析
  4. The in - house system evaluation and field application showed that an excellent oil film for shielding temporary plugging could be formed near borehole wall and both plugging and recovering rates of permeability reached more than 90 % when the added amount of the broad spectrum oil film temporary plugging agent gpj reached 3 % ; skin factor decreased by 7. 4 to 10 times and production increased by 1. 82 to 2. 96 times compared with conventional technology

    結果表明，當廣譜「油膜」暫堵劑gpj的加量達到3 %時，可在近井壁處形成很好的屏蔽暫堵「油膜」帶，滲透率堵塞率和恢復率皆大於90 % ，與常規屏蔽暫堵技術相比，可使油層損害程度降低7 . 4 ~ 10倍，產量提高1 . 82 ~ 2 . 96倍，而且與油層滲透率和溫度無關。
  5. This product, as an organic cationic polymer, can be used to change rheology property of the mud in the immediate vicinity of wellbore effectively and reduce wall scouring to assure stability of the borehole

    該產品作為有機陽離子聚合物，可有效地改變泥漿在近井壁地帶的流變性能，降低井壁沖刷，保證井眼穩定。
  6. Borehole wall contact device

    貼井壁裝置
  7. Breast wall effect of double - pipe protecting borehole wall blasting and its functional mechanism

    光面護壁爆破的護壁效果及作用機理探討
  8. According to this solution, the representative temperature response in a borehole wall can be determined, which varies with time under the condition of constant heat flux

    由此得到工程上所關心的鉆孔壁的代表性溫度在恆定熱流情況下隨時間的變化。
  9. The borehole ultrasonic imaging method can precisely reflect the smoothness of the borehole wall, and then judge the weathering degree of the rock and determine thickness of the weathering bed

    摘要鉆孔超聲成像方法能精確地反映井壁的光滑情況，進而判斷巖石的風化發育程度，確定風化層的厚度。
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