CN202381015U

CN202381015U - Combined fishing cylinder for pumping well of oil field

Info

Publication number: CN202381015U
Application number: CN2011205288642U
Authority: CN
Inventors: 田世齐
Original assignee: China Petroleum and Natural Gas Co Ltd
Current assignee: China Petroleum and Natural Gas Co Ltd
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2012-08-15
Anticipated expiration: 2021-12-16

Abstract

The utility model relates to a combined fishing cylinder for a pumping well of an oil field. The combined fishing cylinder comprises an upper joint (1), a centering ring (7), a guide shoe (8) and the like and is characterized in that a limiting ring (5) is installed on an internal pipe slips (6) of an outer cylinder (2); and a stop claw (4) formed by a steel wire is also installed on the inner pipe wall on the limiting ring (5). The combined fishing cylinder is simple in structure and convenient to use, is used in borehole operation of oil extraction and can fish the tops of the fish of a pumping well oil pipe and a beam hanger, which simultaneously drop and are buried by sand or fragments of the centralizer, instead of an anticirculating fishing basket without matching a surface pump, therefore, the construction difficulty and the operation cost can be reduced.

Description

Oil field pumping well combination fishing socket

Technical field: the utility model relates to a kind of oil field downhole tool, especially for a kind of oil field pumping well combination fishing socket of oil recovery underground work.

Background technology: before the utility model; Each oil field adopts junk basket with reverse circulation to handle by (sand or centralizer chip) pumpingh well oil pipe of burying, the top of fish that beam hanger comes off simultaneously more; Because this device needs the surface pump coordinative construction, thereby has strengthened difficulty of construction and operating cost.

Summary of the invention: the purpose of the utility model is: for oil recovery underground work provides a kind of oil field pumping well combination fishing socket; Because this device is equipped with detent and forms the storage chamber in urceolus; Need not surface pump when salvaging construction and cooperate, thereby can reduce difficulty of construction and operating cost.

The purpose of the utility model realizes through following measure: a kind of oil field pumping well combination fishing socket; Comprise top connection, urceolus, slips, centering ring, guide shoe; And the urceolus lower end that has the elongate tubular of top connection connects guide shoe; In its pipe slips and centering ring are installed also, it is characterized in that a spacing ring is installed above the pipe internal slip of urceolus, the detent that is made up of steel wire also is installed on the inner tubal wall above the spacing ring.

The utility model is simple in structure, easy to use; Be used for the underground work of recovering the oil; Alternative junk basket with reverse circulation is salvaged by (sand or centralizer chip) pumpingh well oil pipe of burying, the top of fish that beam hanger comes off simultaneously, need not surface pump and cooperates, thereby can reduce difficulty of construction and operating cost.

Description of drawings: Fig. 1 is the structural representation of oil field pumping well combination fishing socket.

The specific embodiment: oil field pumping well combination fishing socket is made up of top connection 1, urceolus 2, detent 4, spacing ring 5, slips 6, centering ring 7, guide shoe 8 etc.; Urceolus 2 lower ends that have the elongate tubular of top connection 1 connect guide shoe 8, in its pipe slips 6 and centering ring 7 are installed also; Above the pipe internal slip 6 of urceolus 2 spacing ring 5 is installed, on the inner tubal wall detent 4 that is made up of steel wire is installed also above the spacing ring 5.

The operating principle and the method for using of oil field pumping well combination fishing socket are: before the construction, the top connection 1 through urceolus 2 upper ends is connected this device and down to the precalculated position, down-hole, just can salvages construction with tubing string; Through terrestrial operation slow rotation of this device transferred to the top of fish place earlier during construction, proceed same operation again and utilize 8 pairs of tops of fish of guide shoe to repair, and in the guiding top of fish entering urceolus 2, spacing ring 5 places in the tubing head arrival urceolus 2 of top of fish then can stop; Simultaneously, (sand or the centralizer chip) above the top of fish buried thing and then can be got in the storage chamber 3 above it through detent 4, and is not limited and can falls after rise again; At this moment, just can on carry tubing string to drive this device up, the slips 6 in the urceolus 2 can block the tubing head of top of fish, and then accomplish to salvage and construct.Owing to do not need the cooperation of surface pump in the construction, thereby reduced difficulty of construction and operating cost.

Claims

1. an oil field pumping well makes up fishing socket; Comprise top connection, urceolus, slips, centering ring, guide shoe; And the urceolus lower end that has the elongate tubular of top connection connects guide shoe; In its pipe slips and centering ring are installed also, it is characterized in that: a spacing ring is installed above the pipe internal slip of urceolus, the detent that is made up of steel wire also is installed on the inner tubal wall above the spacing ring.