CN201180495Y - Fast connecting apparatus of chip removal pipe for gas drilling - Google Patents

Abstract

The utility model discloses a fast connecting device for gas drilling chip removal pipes, which aims to overcome the disadvantage that the prior chip removal pipeline connecting device is large in workload for installation and dismantling and unreliable in sealing, and aims to provide a fast connecting device for gas drilling chip removal pipes. The device comprises lower hoop skin, upper hoop skin, a male hoop, a female hoop, a sealing ring and a locking bolt. The ends on one side of the upper hoop skin and the lower hoop skin are connected through a pin hinge; the male hoop and the female hoop are respectively connected with a chip removal pipe; the male hoop and the female hoop are sealed by the rectangular sealing ring; the upper hoop skin and the lower hoop skin cover the male hoop and the female hoop and are locked through a single locking nut; the upper hoop skin and the lower hoop skin are identical in structure form, and double-slope annular grooves are respectively arranged inside the upper hoop skin and the lower hoop skin. The fast connecting device can be used only by tightening one locking bolt, is convenient to install, low in requirement on pipeline alignment and especially suitable for field application. As the rectangular rubber sealing ring is adopted, the fast connecting device is reliable in sealing and can be used repeatedly.

Description

A kind of gas drilling chip discharging tube Quick Connect Kit

Technical field

The utility model relates to a kind of line connection device, relates in particular to a kind of gas drilling chip discharging tube Quick Connect Kit.

Background technology

The gas drilling technology is meant in the drilling process that with a kind of drilling technology of gas as circulatory mediator, it comprises air drilling, inert gas drilling well, gas drilling etc.Gas drilling mainly contains and increases substantially rate of penetration, prolongs drilling life of bit, reduces drilling cost, reduces formation damage, reduces down hole problem (leakage or differential sticking etc.), is beneficial to advantages such as environmental protection.Therefore, gas drilling has been subjected to the great attention of various countries, and development is rapid, and range of application is more and more wider.

Blooie line is the important component part of the gas drilling circulating system, plays the effect that the fluid mixture that the shaft bottom is returned out is transported to combustion cell in drilling well.Because the characteristics of gas drilling, chip discharging tube is longer usually, requirement is left well head more than 100 meters, if adopt single 9 meters long pipelines, chip discharging tube about 15 connects approximately, also need the elbow about 10 in addition and regulate the pipe nipple that length uses some, connect with flange between the chip discharging tube, each connects all will tighten 12 nuts, workload is very big, and if the well site be in the mountain area, crane can not be used mostly in the infield, therefore every joint chip discharging tube will be about 4 meters, and the workload of the chip discharging tube connection that needs like this is just bigger.It has been gas drilling fitter's work amount maximum that blooie line is installed, the work of labour intensity maximum.The type of attachment of flange exists nut to tighten in the inhomogeneous and installation process of dynamics the asbestos pad problem of infringement easily, causes the flange place to be leaked easily.Blooie line in use, because the gas flow rate very high (greater than 40m/s) in the pipeline, and not again that straight line connects, pipeline is very outstanding because of erosive wear causes pipeline (particularly elbow part) to damage the phenomenon of stinging leakage, whole of needs are replaced and are keeped in repair, in order to increase the drilling well timeliness, the linkage scene changes and requires easily and fast just to seem especially important between the chip discharging tube.

Summary of the invention

It is big that the purpose of this utility model overcomes existing blooie line linkage installing/dismounting workload, seals insecure shortcoming, and a kind of gas drilling chip discharging tube Quick Connect Kit is provided.

For achieving the above object, the utility model adopts following design scheme: a kind of gas drilling chip discharging tube Quick Connect Kit comprises: lower catch hoop skin, front band skin, clip public affairs, clip mother, sealing ring, lock bolt.The front band skin is connected by pin hinge with an end of lower catch hoop skin, clip is public not to be connected with chip discharging tube with the clip mother stock, with the sealing ring sealing, front band skin and lower catch hoop leather sheath also pass through single lock bolt locking in clip public affairs and clip mother outside between clip public affairs and the clip mother.The front band skin is identical with lower catch hoop skin structure form, and inside is processed with the double inclined plane annular groove.Sealing ring is a rectangular seal.

The utility model has the advantages that: (1) is easy for installation, and it is just passable only need to tighten a locking nut, and pipeline centering requires low, is particularly suitable for The field.(2) adopt the rectangular rubber sealing mat, sealing is reliable, and is reusable.

Description of drawings

Fig. 1 is the schematic diagram of a kind of gas drilling chip discharging tube of the utility model Quick Connect Kit.

1. bearing pins among the figure, 2. lower catch hoop skin, 3. front band skin, 4. clip public affairs, 5. clip mother, 6. sealing ring, 7. lock bolt.

The specific embodiment

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

In Fig. 1, clip public 4 and clip mother 5 are welded to connect with chip discharging tube respectively, front band skin 3 is connected by bearing pin 1 hinge with an end of lower catch hoop skin 2, seal with rectangular seal 6 between clip public 4 and the clip mother 5, front band skin 3 is enclosed within clip public 4 and female 5 outsides of clip and passes through single lock bolt 7 lockings with lower catch hoop skin 2.

In the installation process, it is just passable only need to tighten a locking nut 7, installs easy and conveniently, and the requirement of pipeline centering is low, is particularly suitable for The field.Adopt rectangular rubber sealing mat 6, sealing is reliable, and is reusable.

Claims (3)

1. gas drilling chip discharging tube Quick Connect Kit, comprise lower catch hoop skin (2), front band skin (3), clip public affairs (4), clip mother (5), sealing ring (6), lock bolt (7), it is characterized in that, front band skin (3) is connected by bearing pin (1) hinge with an end of lower catch hoop skin (2), clip public affairs (4) are connected with chip discharging tube respectively with clip mother (5), seal with sealing ring (6) between clip public affairs (4) and the clip mother (5), front band skin (3) is enclosed within clip public affairs (4) with lower catch hoop skin (2) and also lock by single lock bolt (7) clip mother (5) outside.

2. a kind of gas drilling chip discharging tube Quick Connect Kit according to claim 1 is characterized in that, described front band skin (3) is identical with lower catch hoop skin (2) form of structure, and inside is processed with the double inclined plane annular groove.

3. a kind of gas drilling chip discharging tube Quick Connect Kit according to claim 1 is characterized in that described sealing ring (6) is the rectangular seal ring recess.

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