石油工程專業(yè)英語-采油技術(shù)基礎(chǔ)重點(diǎn)句子productiontechnology-資料下載頁
2025-08-23 11:29本頁面
【正文】 raight line with slope 1/n and intercept C.如果在不同的流量下測量氣井，并根據(jù)qs和（pr2pwf2)的值在對數(shù)坐標(biāo)紙上繪制曲線，將得到一條斜率為1/n，截距為C的直線。56. Specific values of C and n can be used to relate pwf and qgc for decreasing pR, as long as the permeability and other factors relating to flow do not change.在滲透率和其他與滲流有關(guān)的參數(shù)不變的情況下，確定C和n的值可以描述pwf和qgc與持續(xù)下降的pR之間的關(guān)系。57. The production performance of a well is dependent on the overall surface and subsurface ponents, and the properties of the flowing fluids.油井的生產(chǎn)能力取決于整個(gè)生產(chǎn)系統(tǒng)，包括地面和地下部分及流體的性質(zhì)。58. If the producing bottomhole pressure bees so low that it will not allow the well to produce at a desired flow rate (or perhaps any flow rate!), some sort of artificial energy supply will be needed to lift or help lift the fluid out of the wellbore.如果井底壓力過低而不能使油井產(chǎn)出需要的流量時(shí)（或可能沒有一點(diǎn)流量），一些人工能量的支持將被用來舉升或協(xié)助舉升流體從井眼到地面。59. The gas decreases the fluid density of the column and lowers the bottomhole pressure, allowing the formation pressure to move more fluid into the wellbore.氣體降低井筒中流體密度從而降低井底壓力，使在相同的地層壓力下驅(qū)動(dòng)更多流體到井底。60. The degree to which each of these mechanisms affects the well’s production rate depends on the type of gas lift method applied: continuous flow or intermittent flow.這些裝置中每種影響產(chǎn)量的程度取決于所采用的氣舉方法：連續(xù)氣舉或間歇?dú)馀e。61. An intermitter at the surface controls the timing of each injectionproduction cycle. Intermittent gas lift is used on wells with low fluid volumes, a high productivity index, and low bottomhole pressure, or a low productivity index and high bottomhole pressure.間歇性氣舉常適用于低流量，高產(chǎn)油指數(shù)，低井底壓力的井或低產(chǎn)油指數(shù)，高井底壓力的井。62. The type of valve and its location will depend on the expected flow characteristics of the well over its lifetime, whether continuous or intermittent gas lift is to be used, and whether the upper valves are to be used for simply unloading the fluid in the annulus or for multipoint injection.閥的型號和位置取決于超過其使用期后預(yù)測的流體特性，是采用連續(xù)氣舉還是間歇性氣舉方式，和是用頂部閥來簡易地給環(huán)空中的液體卸載還是用于多點(diǎn)注氣。63. The most mon is sucker rod pumping, where the pumping motion is transmitted from the surface to the pump by means of a string of narrow jointed rods placed within the tubing.最常用的是抽油桿泵，通過位于油管內(nèi)的一根緊密連接的桿使泵在地表與下泵處之間往復(fù)運(yùn)動(dòng)。64. the surface unit, which transfers rotating motion to a linear oscillation of the rod string.井下泵用于將井底的液體排出并因此降低井底壓力；桿柱用于將地表的動(dòng)力傳到井下泵；地面部分用于將循環(huán)運(yùn)動(dòng)轉(zhuǎn)換為桿柱的線形擺動(dòng)。65. The valves are designed to open and close so that they allow fluids to enter the pump on the upstroke and be displaced above the traveling valve on the downstroke.這些閥都設(shè)計(jì)成能開能關(guān)類型，以便于在上行階段能使液體進(jìn)入泵內(nèi)，在下行階段被替換到游動(dòng)閥上面。66. In deep wells, a tapered string of rods, decreasing in diameter with depth, can be run to maximize strength at the point of maximum load—the top of the string (fig. ).在深井中，采用的是隨著井深增大而直徑遞減的錐型桿柱。這種桿柱在最大載荷點(diǎn)達(dá)到最大長度——桿柱頂部（）。67. The power fluid system can be either open (OPF) or closed (CPF) depending on whether the power fluid is mingled with the produced fluids or is returned to the surface in a closed conduit.液壓系統(tǒng)是開式還是閉式取決于動(dòng)力液是和產(chǎn)出液混合排出還是直接從封閉導(dǎo)管返回到地面。68. Plunger lift is typically an intermediate artificial lift method for wells that ultimately must be pumped but have a low productivity index (PI) and a high enough gasoil ratio to operate the plunger.注塞舉升是一種典型的間歇式人工舉升方法，它適用于最終必須用泵采的并且具有低采油指數(shù)及高油氣比來驅(qū)動(dòng)注塞的井。69. Often the drilling program and the pletion must be designed to acmodate the artificial lift equipment that will bee necessary even when the well initially flows on its own.通常鉆井過程和完井必須設(shè)計(jì)得與人工舉升設(shè)備相匹配，這甚至在油井最初自噴采油階段也是必須的。70. The particular method chosen for a given well will depend on factors such as the pressures, fluid types, space limitations, power require ments, well depth, and operation experience.為一口給定的井選擇特定的舉升方式將取決于如下因素：壓力，流型，空間限制，所需能源，井深，和操作經(jīng)驗(yàn)。
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