Sentence examples for equivalent circulation from inspiring English sources

The plot of equivalent circulation density versus depth suggests that well can be drilled with two casing policy.

Excessive torque/drag, upright equivalent circulation densities, hindering drillpipe sliding which results in limiting the lateral reach of the well, lost circulation, barite sag, inefficient hole cleaning and frequent sticking are some of the engineering problems encountered while drilling horizontally.

Results verified that equivalent circulation density profiles, and minimum and maximum flow rates during placement should be determined prior cementing operations to avoid influx or fracturing in pre-cased observation wells.

However, due to the narrow mud weight window in most high-pressure sour gas well, this method could not keep both equivalent static density and equivalent circulation density within the safe window.

The literature shows that DF properties (plastic viscosity (PV), yield point (YP), and gel strength (GS)) affect the rate of penetration (ROP) drastically because the presence of unremoved drill solids can cause a phenomenon known as the chip hold down effect, which increases both the equivalent circulation density (ECD) and the differential pressure causing a decrease in the ROP.

During circulation, the equivalent circulating density is used to determine the bottom-hole pressure conditions.

The results of simulation also indicate that during circulation, a higher equivalent circulating density is expected as compared to the case of constant fluid density.

It also differs from the equivalent PDE circulation, which is not shown here.

According to its New York-based founder, Hara Glick — who, unlike most beauty editors, is so low-profile that she didn't even want to be photographed for this article — Makeup Alley now has 1.1 million members, which is roughly equivalent to the circulation of Allure.

Offshore, fine material deposited as a sigmoidal blanket of mud originating in part from the north-east and Rhône river under oceanic circulation (equivalent to a subaqueous prodelta).

Sales of Japan's top three news vendors, including the left-leaning Asahi with 8 million copies, and the main financial daily the Nikkei at 3 million, is roughly equivalent to the circulation of America's top 70 papers combined.