In the paper, a mathematical model of borehole gas transient flow in the process of gas drilling is set up and a numerical solution method is put forward on the basis of the unsteady flow theory of compressible fluid.

基于可壓縮流體不穩(wěn)定流動理論亚洲三级电影2021，文章建立了氣體鉆井過程中井內瞬態(tài)流動的數(shù)學模型并提出了模型的數(shù)值解法国产黄色高淸视频。

In this study we develop a novel solution for the case of a horizontal well in gas condensate reservoir.

本文針對凝析氣藏水平井提出了新的試井分析方法精品九久。

Its analytic solution is obtained by multiple conformal transformation s including elliptical functions,and the pressure and streamline distributions and the well flow rate are presented for the flow field.

將油藏工程中水平井網(wǎng)滲流作為復雜源匯邊界矩形區(qū)域的流動91精品无码视频，通過橢圓函數(shù)等多重保角變換求得其解析解，并得到滲流場的壓力分布网站在线播放你懂的、流線分布及井產量欧美黄色成视频免费观看网址网站。

An inside conical surface at the lower end of the joint is designed to ensure the shaft swing freely within an angle range of 10°, thereby the axial bending stress caused by the deflection of the borehole can be eliminated effectively.

這種裝置采用類似球形關節(jié)的旋轉機構，消除了抽油桿柱上下往復運動產生的倒扣扭矩自拍偷拍亚洲天堂；在短節(jié)下端設計有10°的內圓錐表面色色网中文字幕，使轉軸能夠在10°范圍內自由轉動，從而有效地消除了由于井身彎曲而產生的軸向彎曲應力。

The first kind of operator and Walsh function transformation were conjointly used to enhance the vertical resolving power of the old well logs and improve its capability in reservoir heterogeneity identification.

將第一類算子問題與沃爾什函數(shù)變化方法相結合中文字幕永久在线12页，提高老井測井曲線的縱向分辨率黄色视频看看，進而提升常規(guī)測井曲線對儲層非均質性的分辨能力。

A vertical fractured well can bring out two-dimensional flow in the direction of normals of developing ellipse — conjugate ellipse isobar and hyperbola streamline bunches with the two ends of the fracture as their focuses.

垂直裂縫井采液時誘發(fā)地層中的平面二維橢圓滲流欧美A天堂，形成以裂縫端點為焦點的共軛等壓橢圓和雙曲線流線族。

For instance,(1) mountain terrain map: displaying the terrain and topography, is 3D emulation of earth's surface, is convenient for customer to look into the physiognomy, and check the data of input;(2) contradistinguish map of mine well: displaying opposite position relation of the earths surface and workface, user can analysis surface movement and distortion value at every positions of the workface with the map;(3) 3D prediction model: displaying workface, survey dots, survey lines, terrain, movement and distortion in a same map with 3D graphics, revealing the relations of every elements' position;(4) isoline graphics: displaying the value of height, subsidence, incline, movement and distortion with different colors, and giving the value of every color at the side of the map;(5) color cloud diagram: revealing every targets with colors, coloring every point in the map with the color corresponding the value of height, subsidence, incline, movement and distortion and form transitional color in color cloud diagram.

通過井上下對照圖超碰免费在线，用戶可以分析工作面的各個位置的地表移動變形值黄网址在线永久免费观看免费；（3）三維的預計模型：采用3D形式同時顯示工作面、測線国产变态视频在线播放网站、測點欧美黄色A片一区二区、地表地形、地表移動及變形日本a网站，顯示了各要素的空間相對關系视频专区亚洲免费；（4）等值線：對地表高程、下沉九九精品热全在这、傾斜黄色入口、曲率變形、水平移動和水平變形等各個分量以等值線方式顯示国内免费自拍1视频在线观看网址。

These two methods have the advantages of more efficient convergency and less computer memory requirements, and they are also fast and accurate.

井間電磁成像正反演方法研究則是這一技術的核心內容之一国产高清一区二区亚。

Case study indicates that for a gas well with constant production rate, the relationship between the time of water breakthrough and the perforating degree assumes asymmetrical convex curve.

實例分析表明，底水氣藏的一口生產井以定產量生產东北女人叫床大片毛片AA，在其它條件不變的情況下国产成人情侣在线手机观看免费，其見水時間與氣藏打開程度呈不對稱凸型曲線關系。

Analysis and interpretation of this core sample were used as the basis for a new drilling fluid design.

使用包含粒狀碳酸鈣和碳酸鈣薄片的新型鉆井液設計使得前期井的擴孔從30-50%降低至4%性交网址在线观看。