What is RKB in drilling?

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.

What is RKB in drilling?

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.

What is total vertical depth?

In the petroleum industry, true vertical depth, abbreviated as TVD, is the measurement from the surface to the bottom of the borehole (or anywhere along its length) in a straight perpendicular line represented by line (a) in the image.

What is the difference between measured depth and true vertical depth?

True Vertical Depth (TVD) is measured vertically from the surface down to a certain target down hole. Measured Depth (MD) is the total length of the wellbore measured along the actual well path.

What does Tvdss stand for?

TVDSS is True Vertical Depth SS. This is measured from mean sea level (MSL).

What is a kelly bushing?

1. n. [Drilling] An adapter that serves to connect the rotary table to the kelly. The kelly bushing has an inside diameter profile that matches that of the kelly, usually square or hexagonal. It is connected to the rotary table by four large steel pins that fit into mating holes in the rotary table.

What is TD in drilling?

Abbreviation for total depth. The depth of the bottom of the well. Usually, it is the depth where drilling has stopped.

How do you calculate true vertical depth?

As the angle of deviation increases, the less True Vertical Depth is. TVD = . 940 x 1000 = 940 feet.

What does PPA stand for in Frac?

Many current practices, generally referred to as “slickwater” treatments, use low-viscosity fluids pumped at high rates to generate narrow, complex fractures with low-concentrations of propping agent (0.2-5 lbm proppant added (PPA) per gallon).

What is Tvdss in drilling?

TVDSS is True Vertical Depth SS. This is measured from mean sea level (MSL). It does not reference KB. Kelly Bushing (KB) is the height of the Derek (drill rig) measured from the MSL.

What is kelly bushing in drilling rig?

What does ECD stand for in drilling?

Equivalent circulating density (ECD) Equivalent circulating density is felt when the pumps are on and drilling fluid is circulating out of the hole. ECD (equivalent circulating density) is the dynamic density exerted by a circulating mud at any point in the borehole.

What does RKB stand for in drilling?

Drilling Industry Glossary. 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.

What is ECD in a borehole?

Equivalent circulating density (ECD) ECD (equivalent circulating density) is the dynamic density exerted by a circulating mud at any point in the borehole. The equivalent circulating density or dynamic density at any time during fluid flow is always greater than the static mud density when flow is stopped.

What is the depth of the RKB?

Depth measurements are commonly referenced to the RKB, such as 10,000 ft. RKB, meaning 10,000 feet below the rotary kelly bushing. You may also be interested in: