Oil rig drilling depth

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. Strictly, depth is a vertical coordinate. . Although it is an intuitive concept, depth in a well is the source of much confusion because it is frequently not specified correctly. Absolute depth should always be specified with three components:• a. . Specification of an absolute depth: in Figure 1 above, point P1 might be at 3207 mMDRT and 2370 mTVDMSL, while point P2 might be at 2530 mMDRT and 2502 mTVDLAT.. . • • • Log Data Acquisition and Quality Control, Ph. Theys, 1991, Editions Technip . • Well depth values taken during the drilling operation are referred to as "". The "total depth" for the well, core depths and. . • Unit: the usual unit of depth is the metre (m).• Path: common expressions of path are measured depth (MD) – elsewhere often known as along hole depth (AHD) – and true vertical depth (TVD). Note that using TV for true vertical. [pdf]

Elevator drilling rig

Drill pipe elevators for USC with taper shoulder and square shoulder weld-on tool joints shall have bore dimensions as specified in Table 1. Notes on Table 1: Oilfield elevators with identical bores are the same. 1. * Not Manufactured. 2. ** Obsolescent connection. 1. 1 Dimension DTE from API Spec. 7, Table 4.2 2. 2. . A very close fit of the hinge pin and pawl significantly affects the correct functioning of an elevator – especially the center-latch elevator. If there is play in the hinge, the elevator tends to. . In addition to the side-door elevator, single-joint and slip-type casings are used in running casing. We use a single-joint elevator (Figure 7) to. . Since both care and inspection procedures depend primarily upon the amount of service the equipment has had, it is challenging to project. . The following checks apply to all types of elevators. For a quick reference to critical points of the drill pipe elevators, see Figure 29. 1. Is the oilfield elevator size correct? 2. Are the dies of slip-type elevators sharp? 3. Are the hinge pin or holes worn? 4. Are. [pdf]

Drilling rig accident oklahoma

Federal and state authorities are investigating the cause of the deadly explosion and fire at a natural gas drilling rig in southeastern Oklahoma on Monday. Five workers died in what appears to be one of the country’s deadliest onshore drilling accidents. [pdf]