CN2550503Y

CN2550503Y - Mechanical connection hoop

Info

Publication number: CN2550503Y
Application number: CN02240436U
Authority: CN
Inventors: 窦锡陆; 唐勇; 杨春贵
Original assignee: 窦锡陆
Priority date: 2002-07-17
Filing date: 2002-07-17
Publication date: 2003-05-14
Anticipated expiration: 2012-07-17

Abstract

The utility model discloses a mechanical joint hoop positioner used for water injection well field in oil field, which solves the problem of underground sleeve pipe joint hoop position. The utility model is characterized in that: one end of a spacer (2) with a convex edge is arranged inside a rabbet at the outer wall of a body (2) and the other end is clamped by a gland (5) sleeved on the body (1), forming a plurality of empty cavities (4) arranged internally in a spring piece (3) between the body (1) and the spacer (2); the other end of the gland (5) is locked using a snap spring (6). The utility model has the advantages of accurate determination of the position for underground sleeve pipe joint hoop, small labor intensity, no need of extra cost and a favorite device for oil field.

Description

The mechanical type collar locator

Technical field:

The utility model relates to the used special tool in a kind of water injection well in oil fields field, belongs to the mechanical type collar locator.

Background technology:

At present, the field produces water injection well needs to judge the position of down-hole casing box cupling in order more exactly packer to be arrived the down-hole down.And existing way is determined by experience and ground relevant parameter mostly, and the position is not very accurate, and packer was lost efficacy, and need do over again, and additionally increases cost, and labor strength is big, produces to the oil field to impact.

The utility model content:

The purpose of this utility model is to overcome the deficiency of above-mentioned technology and a kind of mechanical type collar locator of accurately determining down-hole casing box cupling position is provided.

The technical scheme that the utility model is taked is: this mechanical type collar locator constitutes on the subjective basis of hollow, the main body outer wall has a caulking groove to be built-in with spacer one end of fin, the spacer other end is enclosed in pressure cap on the main body and blocks mutually and make and form the built-in some cavitys of spring leaf between main body and the spacer, pins with jump ring in another termination of pressure cap.

Above-mentioned cavity is four.

The utlity model has beneficial effect: when carrying on the back because this locator is gone into the well, when the fin on spacer 2 surfaces of locator runs into casing shoe, the upper lifting force data change, just can determine that this position is the optimum position of casing coupling, and then lower packet, need not lean on experience and ground relevant parameter to determine, the position is more accurate, labor strength is little, does not need additionally to increase cost, welcome by the oil field.

Description of drawings:

Accompanying drawing 1 is a sectional view of the present utility model;

Accompanying drawing 2 is A-A sectional views of accompanying drawing 1;

Accompanying drawing 3 is schematic diagrames of jump ring 6 in the accompanying drawing 1.

1-main body, 2-spacer, 3-spring leaf, 4-cavity, 5-pressure cap, 6-jump ring.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is further described:

As Fig. 1 in conjunction with shown in Figure 2, this mechanical type collar locator constitutes on main body 1 basis of hollow, main body 1 outer wall has a caulking groove, be used for built-in spacer 2 one ends, and the pressure cap 5 that spacer 2 surfaces have fin and this end to be enclosed on the main body 1 blocks mutually, form four cavitys 4 between main body 1 and spacer 2, built-in spring leaf 3 is used to support spacer 2 in cavity 4, pins (showing as Fig. 3) in pressure cap 5 another terminations with jump ring 6.

During actual the use, main body 1 two is connect under the oil pipe to the shaft bottom, when needs are determined the position of lower packet, on carry this locator, observe from the upper lifting force data of ground instrument reflection, when carrying on normal, data are steady, in case when the fin on spacer 2 surfaces of this locator ran into casing shoe, this moment, the upper lifting force data changed, just can determine that this position is the optimum position of casing coupling, lower packet then.Need not lean on experience and ground relevant parameter to determine that the position is more accurate, labor strength is little, does not need additionally to increase cost, welcome by the oil field.

Claims

1, the used mechanical type collar locator in a kind of water injection well in oil fields field, on main body (1) basis of hollow, constitute, it is characterized in that: main body (1) outer wall has a caulking groove to be built-in with spacer (2) one ends of fin, spacer (2) other end is enclosed in pressure cap (5) on the main body (1) and blocks mutually and make and form the built-in some cavitys (4) of spring leaf (3) between main body (1) and the spacer (2), pins with jump ring (6) in another termination of pressure cap (5).

2, mechanical type collar locator according to claim 1 is characterized in that: cavity (4) is four.