CN2045421U

CN2045421U - Multifunction fishing cylinder

Info

Publication number: CN2045421U
Application number: CN 88217830
Authority: CN
Inventors: 任俊; 孙虎生
Original assignee: No 4 Drilling Co of Sinopec Zhongyuan Petroleum Exploration Bureau
Current assignee: No 4 Drilling Co of Sinopec Zhongyuan Petroleum Exploration Bureau
Priority date: 1988-12-31
Filing date: 1988-12-31
Publication date: 1989-10-04

Abstract

The utility model provides a multifunction fishing cylinder having simple structure, safety and high fishing success rate, having the functions of a strong magnet fisher, a fishing basket, a well pulling bore and a milling shoe. The utility model is mainly characterized in that a joint is connected with a fishing cup, a diversion joint, an inner cylinder, an outer cylinder, a guide shoe, a hook, etc. The multifunction fishing cylinder can well bore pulling and expanding, grabbing and fishing, strong-magnetic fishing work, when the multifunction fishing cylinder is arranged in a well once, the utility model can fish and process according to different cases.

Description

Multifunction fishing cylinder

Multi-functional fishing socket is used for oil, the geological drilling trouble of lost tool in hole is salvaged, and belongs to the drillng operation instrument.

When always falling to having metal object or other hard thing, generally adopt strong magnetic die, junk basket with reverse circulation or junk mill to handle trouble of lost tool in hole in the drilling well down-hole.Since the means difference of handling when salvaging, thereby need change fishing tool repeatedly, and time-consuming like this, operation labour intensity is big.

The purpose of this utility model is to provide a kind of simple in structure, safe and reliable, multi-functional fishing socket that fishing success ratio is high, easy to operate.It has the function of strong magnetic die, junk basket, stroke well and junk mill.A G.I.H can be salvaged processing according to different situations, overcomes above-mentioned salvaging utensil and only has the defective that simple function is made troubles.

Fig. 1. multi-functional salvaging letter structural representation.

Describe in detail below in conjunction with accompanying drawing: fishing cup 1 respectively has a hole up and down, and screw thread is arranged at the Wai Yuan bottom, and the middle part symmetry has 2 pin holes 10, and there is hexagonal hole at its center along axis.In the joint 2 through hole is arranged, screw thread is arranged at top, hole, and its middle and lower part is outer hexahedron, and on two corresponding surfaces of hexahedron pin-and-hole is arranged outside, and screw thread is arranged at the bottom.The middle part, outer garden of return connector 3 is embedded with sealing ring 13, and it is inner to be that stepped hole and top are internal thread, and the downward-sloping bleeder 11 of 4-8 symmetry is arranged at the bottom of return connector 3.The bottom of urceolus 5 connects guide shoe 6, and guide shoe 6 outsides are the fin body, and stud with carbide alloy on fin, and its lower end is interior contraction mouth, and end face has tooth.8-16 hole 12 arranged at the bottom of urceolus 5.Be provided with claw 8 below the inner core 7, the pawl of claw 8 is 10-16.

The outer hexahedron of joint 2 inserts the interior hexagonal hole of fishing cup 1, and by the pin-and-hole locking on pin 4 and outer six sides; The following hole of fishing cup 1 is inserted on return connector 3 tops, is connected with joint 2 by screw thread, is set with inner core 7 on the seam below the bleeder 11 of return connector 3, is provided with claw 8 below the inner core 7; Fishing cup 1 is by the connector of the be threaded urceolus 5 and the guide shoe 6 of Wai Yuan bottom; Pitching 9 is housed in the endoporus of joint 2.

Embodiment: when there is junk the down-hole, multi-functional fishing socket is installed in the drilling rod front end with the drill string G.I.H, in going into the well process,, draws the expansion well by the carbide alloy on the fin body of guide shoe 6 as being hampered rotatable drilling tool.Under get into the shaft bottom after, turn on pump flushing inner core 7, pitching 9 then, counterflush drilling liquid is transferred drilling tool and is made claw 8 cover junks, and pressurization makes joint 2 cut off pin 4 to lower slider in fishing cup 1 again, and inner core 7 and claw 8 are descending, the interior contraction mouth of claw 8 by guide shoe 6 closes up catches junk, can pull out of hole.When claw 8 cover was grabbed junk, fishing cup 1 was all the time at the metal junk that utilizes strong magnetic to fish for to scatter, and was contained in its hole that makes progress.The tooth of guide shoe 6 lower ends can grind in the shaft bottom in the salvaging process, the object that fragmentation is difficult for pulling out.Because inner core 7 and urceolus 5 relative slips are so the soft or hard stratum can be used.If it is many to grind drilling depth, claw 8 can encase core, pulls off core and pulls out of hole.Thereby realize once that fishing junk is clean.When circulating fluid, drilling fluid is by at the bottom of the endoporus and bleeder 11 and hole 12 flushing manholes of joint 2.

Claims

1, a kind of by joint, fishing cup, inner sleeve, the multi-functional fishing socket that outer sleeve constitutes, it is characterized in that: the outer hexahedron of joint 2 inserts the interior hexagonal hole of fishing cup 1, and by the pin-and-hole locking on pin 4 and outer six sides, the following hole of fishing cup 1 is inserted on return connector 3 tops, and be connected with joint 2 by screw thread, on the seam below the bleeder 11 of return connector 3, be set with inner core 7, be provided with claw 8 below the inner core 7, return connector is embedded with sealing ring 13 on the 3 outer gardens, fishing cup 1 is by the connector of the be threaded urceolus 5 and the guide shoe 6 of Wai Yuan bottom, and the outside of guide shoe 6 is the fin body and studs with carbide alloy that on fin its lower end is interior contraction mouth, end face has tooth, pitching 9 is arranged in the endoporus of joint 2, and the downward-sloping bleeder 11 of symmetry, the bottom of urceolus 5 porose 12 are arranged at the bottom of return connector 3.

2, multi-functional fishing socket according to claim 1 is characterized in that the bleeder 11 of return connector 3 is 4-8, and the hole 12 of urceolus 5 bottoms is 4-16, and the pawl of claw 8 is 10-16.