Topic
Pipe layer
About: Pipe layer is a research topic. Over the lifetime, 548 publications have been published within this topic receiving 1187 citations.
Papers published on a yearly basis
Papers
Patent•
20 Apr 1971
TL;DR: In this article, the authors present an apparatus for drilling exploration holes or shallow production holes up to about 2,500 or 3,000 feet in depth, which is suitable for shallow production hole or exploration hole.
Abstract: Improvements in apparatus for drilling wells The apparatus is particularly suitable for drilling exploration holes or shallow production holes up to about 2,500 or 3,000 feet in depth The drilling unit is readily transportable from one site to another and is capable of carrying, on racks provided for the purpose, all the drill pipe required for the drilling of relatively shallow production holes or exploration holes The drilling unit, including the drill pipe racks, is preferably arranged such that a major portion of the weight of the complete drilling unit including a full complement of drill pipe supported on the drill racks is available to produce downward thrust of the drill bit when drawdown forces are being applied to the drill string The power source, the drive train and the propulsion wheels are located adjacent one end of the chassis thereby leaving the central region of the chassis free of drive train components and the like It is in this central region that the drill mast and its associated equipment is located An operators'' station is mounted on the chassis and means are provided to support the station for movement from a first position for transportation of the drilling unit wherein the operators'' station overlies a portion of the racking area to a second operating position dispolaced outwardly of the racking area whereby a ready access may be had to the latter for addition or withdrawal of drill stem as the case may be The apparatus also includes means for adding and withdrawing sections of drill pipe to and from the drill string including a pipe handling arm adapted to grasp and wing individual pipe sections between a generally upwardly directed position at or in the mast and a lower generally horizontal position The apparatus includes storage means for the sections of drill pipe having a bed for supporting a plurality of layers of generally horizontally disposed pipe sections, the layers being in generally vertically stacked relation Means are provided for raising or lowering the bed of the pipe storage means thereby to raise or lower the layers of pipe sections supported thereon to enable one of of said layers to be positioned adjacent the lower generally horizontal position taken by the pipe handling arm Means are provided for individually transferring the sections of pipe from the storage means at the level of said pipe layer to the pipe handling arm for engagement thereby and vice versa
38 citations
Patent•
10 Sep 1982
TL;DR: In this paper, a method for the fabrication of a multi-layer gap-less steel pipe is described. The inner pipe and an outer pipe are formed from thermomechanically rolled steel strip with high notched bar impact strength by welding and a matched inner pipe is inserted into the outer pipe and the pipes are mechanically expanded with diameter control to a preset outer diameter of the multilayer steel pipe.
Abstract: A method for production of a multi-layer gap-less steel pipe. An inner pipe and an outer pipe are formed from thermomechanically rolled steel strip with high notched bar impact strength by welding. The individual helical welding seam steel pipes of about the same lengths are matched with a difference of less than about one percent between the outer diameter of the inner pipe and the inner diameter of the outer pipe. The matched inner pipe is inserted into the outer pipe and the pipes are mechanically expanded with diameter control to a preset outer diameter of the multi-layer steel pipe. The resulting multi-layer steel pipe has the inner pipe disposed under compression and the outer pipe layer disposed under stress. The presence of a compression stress in the inner pipe provides a means opposed to hydrogen sulfide stress corrosion. The advantages of the helical welding seam steel pipes can be combined such as economic production, advantages relating to crack formation and crack propagation stopping, and the availability of high internal pressure loads upon use of thin, economic steel strip of different yield strength.
28 citations
Patent•
4 Feb 1998
TL;DR: A sand channel trenching and pipe laying apparatus for attachment to a tractor or other motor driven vehicle has an elongated frame with a turf precutter assembly which includes both a pair of vertical cutting blades and horizontal blades for removing a strip of turf as mentioned in this paper.
Abstract: A sand channel trenching and pipe laying apparatus for attachment to a tractor or other motor driven vehicle has an elongated frame with a turf precutter assembly which includes both a pair of vertical cutting blades and horizontal blades for removing a strip of turf. Channel excavation apparatus for digging a pipe channel is operably mounted to the frame. A pipe dispenser for laying and positioning pipe in the pipe channel is secured to a subframe mounted on a rearward portion of the frame. A sand funnel for funneling and directing sand into the pipe channel is operably linked to a sand hopper and is mounted on the same subframe as the pipe layer. A ball valve and hose attachment device provide a controlled flow of water in the sand hopper allowing for liquification of the sand in the sand hopper forcing the sand to flow through the sand funnel into the pipe channel.
26 citations
Patent•
23 Jan 2013
TL;DR: In this paper, a flexible compound oil pipe provided by the utility model can be continuously processed, the length is free from processing limitation, and the number of the compound oil pipes are reduced according to the increase of the length in an arrangement process of the flexible compound pipe.
Abstract: The utility model discloses a flexible compound oil pipe which comprises a high polymer inner pipe layer used for conveying a medium, a high polymer outer pipe layer arranged on the outer side of the high polymer inner pipe layer, a pressure-resisting layer which is arranged on the outer wall of the high polymer inner pipe layer and is used for resisting internal pressure, as well as a tensile layer which is arranged on the inner wall of the high polymer outer pipe layer and is used for resisting external tensile force. The flexible compound oil pipe provided by the utility model can be continuously processed, the length is free from processing limitation, the numbers of the compound oil pipes are reduced according to the increase of the length in an arrangement process of the flexible compound oil pipe, and the interconnecting operation among the flexible compound oil pipes and required time are reduced; and even one flexible compound oil pipe can be used for completing the extraction and injection of petroleum, the interconnecting operation among multiple flexible compound oil pipes is prevented, the arrangement in an oil extraction and injection well is convenient, and the pick pouring operation of the petroleum can be easily carried out.
20 citations
Patent•
26 Nov 2003TL;DR: In this paper, the authors proposed a coupling between a flexible pipe and an end fitting, the coupling exerting a relatively low bending or flexure strain on the wires during normal operation of the flexible pipe.
Abstract: The invention relates to a pipe structure (10) comprising a length of a flexible pipe connected to an end fitting, the flexible pipe comprising an armour layer (11; 19) and an underlying pipe layer (12; 11) to said armour layer, said underlying pipe layer having an outer surface around which armouring wires (111; 191) of an armouring layer are helically wound. The object of the present invention is to provide a coupling between a flexible pipe comprising armouring wires and an end fitting, the coupling exerting a relatively low bending or flexure strain on the wires during normal operation of the flexible pipe. The problem is solved in that the transition path of an armouring wire between the flexible pipe and the end fitting comprises an straight-line-section (194) between a wire-pipe-exit-point (195) where the wire extends away from its underlying pipe layer and a straight-line-end-point (196) on a support unit (15) of the end fitting where the armouring wire in question has its first tangential point of contact. This ahs the advantage that in a loaded situation where the armouring wires will elongate elastically leading to a change in the helical angle of the armouring wires, a pipe structure according to the invention will experience a slight twist and a controlled bending of the armouring wires on the surface of the support unit (due to a possible change in the base point of contact of the armouring wire with the support unit induced by the change of helical angle), thereby avoiding substantial bending of the individual armouring wires, which is of particular importance when the armouring wires are formed of a composite material. The invention may be used in flexible pipes for the off shore transport of fluids (e.g. oil).
17 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 3 |
| 2020 | 21 |
| 2019 | 40 |
| 2018 | 55 |
| 2017 | 53 |
| 2016 | 42 |