| 摘要 |
A conveyor apparatus (2), so-called injector head, to enable feeding of e.g. continuous tubing (7) or coiled tubing through the conveyor apparatus (2) to or from a wellhead and a well below and related to use of well tools. A pair of oppositely located, co-operatively movable, segmented continuous belts (28; 29) are installed in an apparatus frame (21), each belt comprising a plurality of interconnected gripper shoe carriers (30) carried and movable by means of a pair of continuous belt drive chains (31; 32), wherein the carrier (30) has roller means (35) configured roll against an elongate counter-force member (37), a so-called skate, associated with the frame (21), wherein a gripper shoe (38; 52) is co-operative with each carrier (30) to positively engage the tubing (7), and wherein a pair of said counter-force members (37) being adapted to interact with a respective belt (28; 29). The counter-force member (37) has an elongate part (37′) and integral therewith a plurality of pairs of substantially V-shaped elements (37″) extending with their V-legs (37′″) laterally from oppositely located side edges of the elongate part (37′) towards an apex (37″″) of the V-shaped element. |
| 主权项 |
1. A conveyor apparatus to enable feeding of continuous elongate device down through the conveyor apparatus to enable insertion of tools through a wellhead and a well below or up through the conveyor apparatus by pulling action enabling retrieval of the tool from the wellhead and the well below, the conveyor apparatus comprising:
an apparatus frame, a pair of oppositely located, co-operatively movable, segmented continuous belts installed in the apparatus frame, each belt comprising a plurality of interconnected device gripper shoe carriers carried and movable via a pair of continuous belt drive chains running over respective pairs of chain drive sprockets, wherein a rear side of the carrier has at least one roller configured roll about a shaft attached to the carrier against an elongate counter-force member, a so-called skate, associated with the apparatus frame and extending between said drive sprockets, wherein a device gripper shoe is co-operative with each carrier to positively engage the continuous elongate device, wherein a pair of said counter-force members being adapted to interact with a respective belt, wherein the counter-force member has a) a elongate part, and b) along the length of the elongate part a plurality of pairs of substantially V shaped elements, the elements of each pair extending with their V-legs laterally from oppositely located side edges of the elongate part towards an apex of the V-shaped element, wherein an axis of one leg of a V-element of one pair of elements, at one side edge of the elongate part, is aligned with an axis of a leg of a V-element of another and adjacent pair of elements, at the other side edge of the elongate part, and wherein the V-elements are integral with the elongate part and co-planar therewith. |
