CN201184159Y - Novel cable latch jack for fetching core with drill - Google Patents

Abstract

A novel rope fishing device capable of self-disconnecting and coring with drilling mainly solves the problems that the outside dimension of the prior fishing device is large, and an inner tube component can not be disconnected automatically after being sent in position. The novel rope fishing device is characterized in that a rope clamping connector (1) is connected with a lifting stem (3) through a safety pin (2); the lower part of the lifting stem (3) is connected with a bearing pressure cap (4); the bearing pressure cap (4) is seated on a bearing retainer (6) through a suspension bearing (5) and is in threaded connection with a loading lever (7); the loading lever (7) is connected with a lower connector (8) of the loading lever through external threads; a compression bar (9) arranged at the lower end of the lower connector (8) of the loading lever is matched with a rotating rod (11) in a sliding sleeve (10); the lower end of the rotating rod (11) is connected with a lower pressure sleeve (15); the sliding sleeve (10) is connected with a connector (12) of a tool grab seat; a tool grab (17) is connected with the tool grab seat (14) through a pin shaft. The novel rope fishing device capable of self-disconnecting and coring with drilling has the characteristics of easy fishing and disconnecting action, simple operation, safety and reliability.

Description

A kind of novel with drilling through heart rope salvaging device

Technical field:

The utility model relate to a kind of be used for that oil drilling cores with drilling through heart rope salvaging device.

Background technology:

With drilling through heart technology is in certain well section, need not make a trip, bit change more, just sends into and salvage interior cartridge module by the rope salvaging device, just can carry out continuous coring at any time and creep into a kind of centering technique technology of the operation that alternates comprehensively.This technology has shortened the required time of coring greatly, has alleviated operation labour intensity all, has reduced the cost of coring operation and has shortened drilling period.And the rope salvaging device be in realizing coring cartridge module and creep into comprehensively in the critical component of cartridge module conversion, its reliability is to determine with drilling through the prerequisite that can the heart be realized.Mainly there is following shortcoming in fisher at present: 1, the fisher outside dimension is big, can not need be equipped with special brill very by conventional drill collar internal diameter, is difficult for promoting.2, after cartridge module put in place in fisher was sent into, need the well head input to take off the disengagement that the card pipe is realized fisher and interior cartridge module, complicated operation expends time in, and for conventional drill collar, this disengagement mode is difficult for realizing, has limited with the development that drills through the heart.

The utility model content:

Can not be sent to the deficiency that to throw off voluntarily behind the position by conventional drill collar internal diameter, interior cartridge module in order to overcome existing fisher greatly because of outside dimension, it is a kind of novel with drilling through heart rope salvaging device that the utility model provides, and should salvaging be arranged and throw off that action realizes easily, simple to operate, safe and reliable characteristics with drilling through heart rope salvaging utensil

The technical solution of the utility model is: a kind of novel with drilling through heart rope salvaging device, comprise the wire clips joint, shadoof, crowfoot, the wire clips joint connects shadoof by safety pin, shadoof bottom connection bearing pressure cap, the bearing pressure cap is sitting on the bearing retainer by drop-hanger bearing, bearing pressure cap and weighted lever are by being threaded, weighted lever connects the weighted lever lower contact by external screw thread, place the depression bar of weighted lever lower contact lower end in slip cap, to cooperate with dwang, the dwang lower end connects gland down, the slip cap of dwang outside, crowfoot seated connection head, the crowfoot seat is by being threaded, and the crowfoot seat is connected by bearing pin with 2 crowfoots.

The utlity model has following beneficial effect: owing to take such scheme, should be less with drilling through heart rope salvaging device outside dimension, can pass through conventional drill collar internal diameter smoothly; Shadoof bottom connection bearing pressure cap, and the bearing pressure cap is sitting on the bearing retainer by drop-hanger bearing, can guarantee that the lower tube string rotates freely can prevent to beat in the rope rotation of sending into or the instrument rotation causes during fishing tool and turn round and cause down-hole accident; Rotate by dwang, depression bar is changed between the elongated slot of dwang, short groove, can realize salvaging and the disengagement of crowfoot to the inner core spearhead, satisfy the sending into of inner core, disengagement and fishing, promptly under situation without drilling, by this fisher just can realize coring the inner core instrument with creep into sending into and salvaging of inner core instrument comprehensively, finish and core and creep into operation comprehensively, safe and reliable, simple to operate; Owing to should not need to be equipped with special special brill very with drilling through heart rope salvaging device, and be easy to apply.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

1-wire clips joint among the figure, 2-safety pin, 3-shadoof, 4-bearing pressure cap, 5-drop-hanger bearing, 6-bearing retainer, the 7-weighted lever, the lower contact of 8-weighted lever, 9-depression bar, 10-slip cap, 11-dwang, 12-crowfoot seated connection head, the 13-spring, 14-crowfoot seat, gland under the 15-, 16-spearhead spring, 17-crowfoot.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By shown in Figure 1, a kind of novel with drilling through heart rope salvaging device, comprise wire clips joint 1, shadoof 3, crowfoot 17, wire clips joint 1 connects shadoof 3 by safety pin 2, shadoof 3 bottom connection bearing pressure caps 4, bearing pressure cap 4 is sitting on the bearing retainer 6 by drop-hanger bearing 5, bearing pressure cap 4 and weighted lever 7 are by being threaded, weighted lever 7 connects weighted lever lower contact 8 by external screw thread, place the depression bar 9 of weighted lever lower contact 8 lower ends in slip cap 10, to cooperate with dwang 11, dwang 11 lower ends connect gland 15 down, the slip cap 10 of dwang 11 outsides, crowfoot seated connection head 12, crowfoot seat 14 is by being threaded, and crowfoot seat 14 and 2 crowfoots 17 are connected by bearing pin.

During work, fisher connects wire rope by wire clips joint 1 to be sent into from drilling tool and proposes, and can directly be put off by safety pin 2 places when the inner core instrument is met card in drilling tool.Because shadoof 3 bottom connection bearing pressure caps 4, and bearing pressure cap 4 is sitting on the bearing retainer 6 by drop-hanger bearing 5 fisher, can guarantee that the lower tube string rotates freely when sending into and propose, and guarantees that it smooth and easyly is lowered to and trips out.Weighted lever 7 and weighted lever lower contact 8 are in order to give depression bar 9 enough pressure, the depression bar 9 that places weighted lever lower contact 8 lower ends is cooperated in slip cap 10 with dwang 11, dwang 11 is provided with elongated slot and short groove, when dwang 11 was subjected to depression bar 9 applied pressures, depression bar 9 can be changed between the elongated slot of dwang 11 and short groove.When depression bar 9 enters in dwang 11 elongated slots, carried on the gland 15 down by spring 13 effects, place down crowfoot 17 upper ends of gland 15 not stress, under the effect of spring 16, shrink the crowfoot lower end, realizes salvaging action; When depression bar 9 entered dwang 11 weak point grooves, following gland 15 moved down, and the crowfoot 17 upper end conical surfaces enter down in the gland 15, crowfoot 17 lower ends are opened realize throwing off action.

This fisher can be realized salvaging and disengagement action realization easily with salvaging that drills through intracardiac cartridge module and disengagement at any time, and safe and reliable, simple to operate, does not need to be equipped with special special brill very, is easy to apply.

Claims (2)

1, a kind of novel with drilling through heart rope salvaging device, comprise wire clips joint (1), shadoof (3), crowfoot (17), it is characterized in that: wire clips joint (1) connects shadoof (3) by safety pin (2), shadoof (3) bottom connection bearing pressure cap (4), bearing pressure cap (4) is sitting on the bearing retainer (6) by drop-hanger bearing (5), bearing pressure cap (4) and weighted lever (7) are by being threaded, weighted lever (7) connects weighted lever lower contact (8) by external screw thread, place the depression bar (9) of weighted lever lower contact (8) lower end in slip cap (10), to cooperate with dwang (11), dwang (11) lower end connects gland (15) down, slip cap (10) is connected with crowfoot seated connection head (12), and crowfoot (17) is connected by bearing pin with crowfoot seat (14)

2, according to claim 1 novel with drilling through heart rope salvaging device, it is characterized in that: crowfoot (17) is 2.