CN201276997Y

CN201276997Y - Rock core clamping device

Info

Publication number: CN201276997Y
Application number: CNU2008201410291U
Authority: CN
Inventors: 胡畔; 董斌; 陈晓彬; 陈立; 韩烈祥; 肖新宇; 李伟成; 刘彬
Original assignee: CNPC Chuanqing Drilling Engineering Co Ltd
Current assignee: CNPC Chuanqing Drilling Engineering Co Ltd
Priority date: 2008-10-29
Filing date: 2008-10-29
Publication date: 2009-07-22
Anticipated expiration: 2018-10-29

Abstract

A core clamping device relates to the technical field of core outlet clamping tool manufacturing, and comprises a left inner cylinder clamping ring, a right inner cylinder clamping ring, a left core clamping ring and a right core clamping ring, wherein the left inner cylinder clamping ring and the right inner cylinder clamping ring are connected to the upper ends of a left clamping body and a right clamping body; the utility model discloses take and divide left and right sides to set up the structure of inner tube card and the card body, designed a core clamping device that is used for many inner tubes coring barrel to go out the core, when having solved many inner tubes coring tool coring of prior art, used the difficult complete difficulty of going out the core of core pincers, can the centre gripping wrap up the inner tube and the core that need the separation, separate into single inner tube a plurality of inner tubes fast effectively, can protect the core not drop and spill.

Description

Core clamping device

Technical field:

A kind of core clamping device is used for the taking-up that oil and gas well drilling is got core behind the core, relates to a kind of manufacturing technology field of many inner cores coring tool knockout clamping device.

Background technology:

At present both at home and abroad after implementing oil and gas well drilling, in order to understand the situation on stratum, need carry out core drill from predetermined layer position advances, then the core that obtains is taken back test room and carry out the research that oil gas preserves, present coring tool all is an inner core basically, therefore yet is not applied to the clamping device of many inner cores knockout; When carrying out the knockout of many inner cores, mainly be to use the core pincers that core is pressed from both sides out in the past, but, use the core clamp to hold not only difficulty of many cores, and have certain danger because many core own wts are too heavy; If there is complicated operation again in knockout respectively again after the coring tube of many inner cores is placed on surface separation and opens, ineffective problem; In recent years, along with the bitubular even many get increasing of core number of times, knockout mode in the past is because complicated operation and danger can't be satisfied safe, efficient and high-quality requirement, so need a kind of clamping device that can safely, efficiently realize the knockout of many inner cores of design.

Summary of the invention:

The purpose of this utility model is the problem that knockout runs into often at many inner cores, takes the structure that the card body is set about inner core card and branch is set about branch, has designed a kind of core clamping device that is used for the knockout of many inner cores coring tube.

The utility model is achieved in that the utility model comprises snap ring and card body, is characterized in that:

Described snap ring is made of left and right inner core snap ring and left and right core snap ring, and described card body comprises left and right card body; Left and right inner core snap ring is connected the upper end of left and right card body by bearing pin, and left and right core snap ring is connected the lower end of left and right card body;

Be provided with foundation ring and plate in the bottom of described left and right core snap ring;

One end of described left and right inner core snap ring has opening, and an end does not have opening, does not have an end of opening to connect by connecting bearing pin, has an end of opening to be connected with bolt by the bolt bearing pin, and bolt is provided with clamp nut;

The both sides that are arranged on the left and right core snap ring of described left and right card body lower end all are provided with opening, are provided with connecting bolt and clamp nut at opening part;

Left and right inner core snap ring is used for the inner core of many inner cores of clamping coring tool, by regulating clamp nut, make the left and right inner core snap ring can moving radially to connecting bolt, the opening of left and right inner core snap ring can be opened or draw in to the left and right sides, size enforcement according to many inner cores coring tool inner core external diameter is fastening, and the inner core of many inner cores coring tool can not be come off;

The left and right core snap ring that left and right card body lower end connects is used for the core of clamping inner core, size according to core, by the rotation clamp nut, regulate its opening degree, its opening degree is met be held core size, behind the core in clamping inner core, tighten clamp nut, core can not be come off;

The advantage and the beneficial effect of the utility model patent are: carry out many when getting core and needing knockout; the inner core and the core that can use the core clip to hold or wrap to separate; fast and effeciently a plurality of inner cores are separated into the single inner core that is easy to knockout; the protection core does not drop and spills; guarantee to take out the quality of core; have inner core time, the characteristics of increasing work efficiency of separating of saving simultaneously.

Description of drawings:

Fig. 1 is a Facad structure schematic diagram of the present utility model.

Fig. 2 is the utility model plan structure schematic diagram.

Fig. 3 is the structural representation of the utility model Fig. 1 to right rotation 90 degree.

Fig. 4 is the taking-up enlarged diagram of sequence number 8 among the utility model Fig. 1.

The specific embodiment:

Provide embodiment of the present utility model below in conjunction with accompanying drawing: the utility model comprises snap ring and card body, and snap ring comprises left and right inner

core snap ring

2,14 and left and right

core snap ring

11,15, and the card body comprises left and

right card body

12,6; Left and right inner

core snap ring

2,14 is connected the upper end of left and

right card body

12,6 by bearing pin 1, and left and right

core snap ring

11,15 is connected the lower end of left and

right card body

12,6; In order to connect and to be convenient to cut off core, be provided with foundation ring 9 and plate 8 in the bottom of left and right

core snap ring

11 and 15; End in left and right inner

core snap ring

2 and 14 has opening, one end does not have opening, there is not an end of opening to connect by connecting bearing pin 13, there is an end of opening to be connected with bolt 5 by bolt bearing pin 3, bolt 5 is provided with clamp nut 4, left and right inner

core snap ring

2 and 14 is moved to both sides, play the effect of regulating openings of sizes; All there is opening on left and right core snap ring 11 that is provided with in left and

right card body

12 and 6 lower ends and 15 both sides, are provided with connecting

bolt

7,10 and clamp nut at opening part, also can be according to the size adjustment opening degree of core; Left and right inner

core snap ring

2 and 14 is used for the inner core of many inner cores of clamping coring tool, by regulating clamp nut 4, make the left and right inner

core snap ring

2 and 14 can moving radially to connecting bolt 5, the opening of left and right inner

core snap ring

2 and 14 can be opened or draw in to the left and right sides, size enforcement according to many inner cores coring tool inner core external diameter is fastening, and the inner core of many inner cores coring tool can not be come off;

The left and right

core snap ring

11 and 15 that left and right card body 12 is connected with 6 lower ends is used for the core of clamping inner core, size according to core, regulate its opening degree by the rotation clamp nut, its opening degree is met be held core size, behind the core in clamping inner core, tighten clamp nut, core can not be come off;

After the inner core of many inner cores coring tool is clamped, carry out next step operation according to the soft or hard degree of core lithology, if lithology is hard, then directly tightens clamp nut and clamp core, the core that knocks

card body

12 or 6 belows with instrument ruptures until it; If lithology is soft, then tighten behind the clamp nut and insert the card body centres joint with plate 8, cut off core; Plate 8 back end design have baffle plate 17, avoid dropping after plate 8 whole the passing, and when the core resistance is big slightly, can knock the baffle plate 17 of plate 8 rear ends, are convenient to plate 8 and pass core; Plate 8 Front-end Design have the oblique angle, arrange and pass soft core when being easy to inject, front end also has two apertures 18 for two jiaos, when passing core, puts into plate 8 slightly little bolt, avoid plate 8 to retreat even drop, on the interior circle of left and right inner

core snap ring

2,14 and left and right

core snap ring

11,15, apply and be welded with tungsten carbide 16, can guarantee that nipped core can not come off.

Claims

1, a kind of core clamping device comprises snap ring and card body, it is characterized in that:

Described snap ring is made of left and right inner core snap ring and left and right core snap ring, and described card body comprises left and right card body; Left and right inner core snap ring is connected the upper end of left and right card body by bearing pin, and left and right core snap ring is connected the lower end of left and right card body.

2, core clamping device according to claim 1 is characterized in that: be provided with foundation ring and plate in the bottom of described left and right core snap ring.

3, core clamping device according to claim 1, it is characterized in that: an end of described left and right inner core snap ring has opening, and an end does not have opening, does not have an end of opening to connect by connecting bearing pin, have an end of opening to be connected with bolt by the bolt bearing pin, bolt is provided with clamp nut.

4, core clamping device according to claim 1 is characterized in that: the both sides that are arranged on the left and right core snap ring of described left and right card body lower end all are provided with opening, are provided with connecting bolt and clamp nut at opening part.