In the oil and gas industry, depth in a well is the distance along a well between a point of interest and a reference point or surface. It is the most common method of reference for locations in the well, and therefore, in oil industry speech, "depth" also refers to the location itself.

2017年11月25日 · The top of the rig kelly bushing is also used as a datum for depth measurement. In this case, the depths are referred to as depths below rotary kelly bushing (RKB). The depth of any point in the well path can be expressed in terms of the Along Hole Depth (AHD) and the True Vertical Depth (TVD) of the point below the reference datum.

2019年1月22日 · 现场钻机采用钻杆钻进的深度叫做“钻杆深度”，岩心深度以及来自钻孔的岩心/泥浆和其他材料的所有分析都在“钻井深度”中测量。 如果是来自电缆记录器操作的深度值被称为“测井深度”。 电缆记录仪深度通常被认为比钻机深度更可靠。 记录仪和钻机深度之间的差异是由于钻孔时钻柱中的拉伸不同，二者之间需要匹配。 千万不要以为你就掌握了这些深度缩写，就完事大吉了。 下面再来一个更加难度大一些的图片。 感觉有点蒙圈的，可以看一下如下面图中的深度对 …

2017年10月24日 · Driller’s Depth below rotary table (DDbrt): The depth of a well or features within the wellbore as measured while drilling. The measured length of each joint of drillpipe or tubing is added to provide a total depth or measurement to the point of interest.

the System Datum is Lowest Astronomical Tide (LAT), which is 1.5m above Mean Sea Level (MSL) and the Reference Datum Level (RDL) is Rotary Kelly Bushing (RKB)

MD：Measured Depth，测量深度。 从方钻杆补心（KB）开始，沿着井眼测量的深度（图2）。 很明显，测量，包括测井的时候，谁闲的蛋疼，先去找平均海平面MSL，从那一点开始计数啊！ 所以都是从方钻杆补心开始。 TVD：True Vertical Depth，垂直深度。

Pseudo length is measured from the simulation-wells first connection-cell (well head connection) to the reservoir. This is very different from MD, which would start at RKB or at sea level. Depth Unit The depth unit can be set using the Depth unit …

RKB Rotary kelly bushing - an adapter that serves to connect the rotary table to the Kelly, which turns the entire drillstring. Depth measurements are commonly referenced to the RKB, such as 10,000 ft. RKB, meaning 10,000 feet below the rotary kelly bushing.

In most drilling operations, RKB (Rotary Kelly Bushing) is used as a reference point to measured depth. For floating drilling rigs, a mean rotary table elevation has to be used. In offshore, MSL (Mean Sea Level) is sometimes used. Variations in actual sea level from MSL can be read from tide tables or can be measured. 2. Inclination references.

Rotary Kelly Bushing (a datum for measuring depth in an oil well) - RKB - oilfield abbreviation and dictionary, oil & gas industry abbreviation source, boe definition, bbl, drilling, reservoir engineering, production technology, unit converter, Acronym , PetroBasics,Petroleum Engineering Database including abbreviations and dictionary.