دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The country leading well deviation easily.

n: A kind of instrument used to measure the well deviation, direction of deflection and tool face orientation continuously and real time.The instrument is made of downhole electron detector,
ground computer,typer and displayer

n: a phenomenon of well deviation caused by the bit drilling along the direction of the angle of dip

n: a kind of well deviation theory ,when drill the different-hardness layer ,the torque caused by the heterogeneous distribution of the pressure affects the drift direction

n: a device launched to the bit of the pipe to measure the well deviation

a description of well deviation change at about 2o to 6o per 100 ft.

a description of well deviation change at about 8o per 100 ft.

n: according to the test research, a theory of leading well deviation was developed.

n: It is consist of slide block, centibar,roller and body,which is benefit to stabilize the bit and prevent well deviation.

n: a hole that is drilled vertically. The total hole angle is restricted. and the hole does not change direction rapidly no more than 3 per 100 feet (30.48 metres) of hole.

n: Vertical wellbore.It can be think as straight hole when well deviation and azimuth not exceeding the provided limit.

an essentially straight hole with less than 5o total deviation from surface to bottom hole and dogleg severity less than 3o/100 ft.