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Washpipe assembly

A technology for flushing pipes and components, applied in drilling equipment and methods, drilling pipes, flushing wells, etc., can solve problems such as increasing staff errors and damage to drilling rigs

Inactive Publication Date: 2007-10-17
VARCO I P INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, this increases the chance of operator error, which can cause damage to the entire rig

Method used

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Embodiment Construction

[0046] The present invention provides a drilling apparatus designed such that the torque applied to the wash tube assembly is controllable. The present invention also relates to methods of using the drilling apparatus of the present invention to controllably engage / disengage the flush tube assembly and the threaded connector between the swivel block / gooseneck assembly and the main shaft of the drilling apparatus.

[0047] FIG. 1 shows a typical top drive drilling rig 10 . The drilling equipment 10 is structurally supported by a derrick 11 . Drilling equipment 10 includes a plurality of mechanical components, these components include: a swivel base 13, a flushing pipe cap 14, a gooseneck 15 extending from the flushing pipe cap 14, a main shaft 16, a motor housing 17 , a drill pipe 18 / drill string 19, and a drill bit 20. These mechanical components are collectively suspended on a displacement block 12 which enables the mechanical components to move up and down along guide rail...

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PUM

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Abstract

A drilling system and a method of using a drilling system that has a first rotatable tubular connector, a second non- rotatable tubular connector and a washpipe assembly having at least one dynamic seal and defining a fluid conduit having at one end a first mating connector and at another end a second mating connector designed to interconnect with the first and second tubular connectors. A controllable torque driver is arranged to mechanically engage the washpipe assembly such that fluid connections are made between the first mating connector and the first tubular connector, and the second mating connector and the second tubular connector.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Provisional Application No. 60 / 315,072, filed August 27, 2001, under 35 U.S.C. § 119(e). technical field [0003] The present invention relates generally to an apparatus for use in earth-boring operations performed by a rotary drilling system, and in particular to an improved portion of a rotary drilling system that is subject to significant wear during drilling operations The flush pipe dynamic seal can be safely and conveniently maintained. More specifically, the present invention proposes an improved flush tube assembly, and methods of installation / disassembly of the same. Background technique [0004] Top drive drilling equipment usually includes a top drive system (TDS), which can be connected to the upper end of the drill string so as to drive the drill string to make it rotate. During drilling operations, it can carry the drill string Moving up and down. The TDS consists of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/00E21B3/02E21B21/02
CPCE21B21/02
Inventor 帕德马塞里·D·赛纳维拉特纳
Owner VARCO I P INC