CN202073553U - Quick butt-joint tool for downhole logging instruments - Google Patents

Abstract

The utility model relates to a quick butt-joint tool for downhole logging instruments. The technical scheme includes that the lower side of a drill pipe joint is connected with a shell, a slurry draining tube is sleeved to the inner upper portion of the shell via screws, a male joint is packed in the slurry draining tube, a draining sleeve is sleeved to the inner lower portion of the shell via screws, a male joint is arranged in the draining sleeve, and draining holes are arranged on the shell. At least two draining slots are axially distributed on a connector in the draining sleeve, a locking hook is connected with the male joint via a connecting block on the upper portion of the connector, an annular groove fastened with the locking hook fittingly is arranged at the lower end of the female joint, and at least three draining slots are axially preformed on the outer wall of the slurry draining tube. Since a locking mode of the male joint and the female joint is modified, the male joint and the female joint can be in butt joint more quickly and reliably. The locking hook can be reused. The slurry draining tube can protect and center the male joint so as to improve butt jointing efficiency and quality of the male joint. A weight bar arranged additionally enables the female joint to be set more smoothly and quickly, and accordingly success rate of butt jointing is ensured and the female joint is not easy to be separated after being in butt jointing.

Description

The downhole logging instrument device is fast to bonding tool

Technical field

The utility model relates to logging technique kit field, is specifically related to a kind of downhole logging instrument device fast to bonding tool.

Background technology

Present downhole logging instrument device bonding tool is mainly comprised: the tool joint below connects shell, pass through screw mud earial drainage tube in the shell, mud earial drainage tube is by the dress female joint, the bottom is by screw earial drainage cover in the enclosure, in the earial drainage cover, establish male joint, shell is provided with discharge orifice, and the thread protector that is connected tool joint and female joint.Continuous development along with the oil field development technology, big gradient and horizontal well are also more and more, existing to bonding tool since the pin and box sub locking mechanism can not reuse, and original female joint top lacks counterweight, when meeting inclined shaft and horizontal well, female joint is difficult to transfer and puts in place, influences logging operation and logging quality.

The utility model content

The purpose of this utility model is exactly the defective that exists at prior art, provides that a kind of the downhole logging instrument device is fast to bonding tool efficiently, efficiently.

Its technical scheme is: the tool joint below connects shell, and the shell internal upper part encapsulates female joint by screw suit mud earial drainage tube in the mud earial drainage tube, and the bottom is established male joint by screw suit earial drainage cover in the earial drainage cover in the enclosure, and shell is provided with discharge orifice.Connector axial distribution in the earial drainage cover has 2 above dredging flow grooves, lock hook and male joint is connected by contiguous block on connector top, and the bottom of female joint is provided with the cannelure that cooperates with the lock hook clamping; Axially be shaped on the dredging flow groove more than 3 on the outer tube wall of described mud earial drainage tube in advance.

Above female joint, dispose the supercharging weighted lever.Be externally connected with thread protector in tool joint and female joint.

The utility model make its butt joint quick more, reliable, and lock hook can be reused by improving the lock mode of pin and box sub combination; Improve mud earial drainage tube, can play the effect of protecting and setting upright, satisfy circulating mud at any time simultaneously, improve pin and box sub butt joint efficient and quality male joint; The supercharging weighted lever of setting up can improve the female joint counterweight, and it is more smooth and easy quick that female joint is transferred, and guarantees to dock success rate, and ensures that the butt joint back is difficult for breaking away from.After the improvement to bonding tool compared with prior art, have simple in structure, easy to use, quick advantage reliably.

Description of drawings

Fig. 1 is the structure chart of a kind of embodiment of the utility model;

Fig. 2 is the sectional view of A1-A1 among Fig. 1.

Among the figure, the 1st, last thread protector, the 2nd, tool joint, the 3rd, weighted lever, the 4th, mud earial drainage tube, the 5th, shell, the 6th, female joint, the 7th, lock hook, the 8th, contiguous block, the 9th, connector, the 10th, earial drainage cover, the 11st, male joint, the 12nd, following thread protector.

The specific embodiment

See figures.1.and.2, a kind of downhole logging instrument device is fast to bonding tool, tool joint 2 belows connectshell 5, pass through screw mudearial drainage tube 4 in theshell 5, encapsulationfemale joint 6 in the mud earial drainage tube, the bottom is by screwearial drainage cover 10 inshell 5, andconnector 9 axial distribution in the earial drainage cover have 3 dredging flow grooves, lock hook andmale joint 11 are connected bycontiguous block 8 onconnector 9 tops, the bottom offemale joint 6 is provided with the cannelure that cooperates with lock hook 7 clampings; Axially be shaped on 6 dredging flow grooves on the outer tube wall of described mudearial drainage tube 4 in advance.

Also comprise in the foregoing description: abovefemale joint 6, dispose supercharging weighted lever 3.Outside tool joint 2 andfemale joint 11, be connected withthread protector 1 and followingthread protector 12 respectively.

Claims (3)

1. a downhole logging instrument device is fast to bonding tool, the tool joint below connects shell, the shell internal upper part is by screw suit mud earial drainage tube, encapsulation female joint in the mud earial drainage tube, the bottom is by screw suit earial drainage cover in the enclosure, in the earial drainage cover, establish male joint, shell is provided with discharge orifice, connector axial distribution in the earial drainage cover has 2 above dredging flow grooves, lock hook and male joint are connected by contiguous block on connector top, the bottom of female joint is provided with the cannelure that cooperates with the lock hook clamping; Axially be shaped on the dredging flow groove more than 3 on the outer tube wall of described mud earial drainage tube in advance.

2. downhole logging instrument device according to claim 1 is characterized in that fast to bonding tool: dispose the supercharging weighted lever above female joint.

3. downhole logging instrument device according to claim 1 and 2 is characterized in that fast to bonding tool: be externally connected with thread protector in tool joint and female joint.

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