RU2053347C1 - Tube threaded connection pressurizing chamber - Google Patents

Abstract

FIELD: oil-and-gas extracting industry. SUBSTANCE: pressurizing chamber has two metal half-rings, which are connected by threaded tightening device to define casing. Smooth rubber members mounted within casing are composed of two halves, which are connected to form ring. Both halves are provided with tight lock connection positioned at their ends. Inner sides of rubber members are provided with shaped self-sealing hollow chamber for collecting pressurizing agent (liquid, gas). Pressurizing chamber is mounted on column head and casing clutch and pressurizing agent is supplied into self-sealing shaped chamber to create pressure sufficient for pressurization of threaded connection. When clutch connection is tight, pressure created in chamber and controlled by pressure gage, is not reduced to certify tightness of connection. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 6 dwg

Description

 The invention relates to the oil industry and can be used for crimping threaded connections of column heads in underground gas storage wells (UGS).

 A device for crimping threaded joints is known, including a housing, a cylindrical self-sealing sleeve and a tube mounted therein for supplying a crimping agent (1).

 A disadvantage of the known technical solution is the impossibility of its use for crimping threaded joints in underground gas storage wells.

 Closest to the proposed one is a chamber for crimping a threaded pipe connection, comprising a two-part body, means for securing the body parts, a detachable self-sealing sleeve located in the body cavity, forming a sealed cavity when the camera is installed on the surface of the test compound, and means for supplying a pressure agent (2).

 A disadvantage of the known camera is its bulkiness, the complexity of the design and its use.

 The aim of the invention is the creation of the design of the chamber for crimping the threaded pipe joints, with simplicity of design and ease of operation.

 The goal is achieved in that in the chamber for crimping a threaded pipe connection, comprising a two-part body, means for securing the body parts, a detachable self-sealing sleeve located in the body cavity, forming a sealed cavity when the camera is mounted on the surface of the test compound, and means for supplying an agent crimping, parts of the housing have guiding elements in the form of metal protrusions on one part of the housing and rectangular grooves for their location on the other part of the housing, and and fastening parts of the housing are designed as bolted connections, and self-sealing collar is made in two parts.

 Figure 1 shows a column head with a threaded connection, which must be checked for leaks; figure 2 is a section of a chamber for crimping a threaded connection; figure 3 section aa in figure 2; in Fig.4 a section bB in Fig.3; in Fig. 5, view B in Fig. 3; figure 6 is the same option.

 The chamber for crimping the threaded connection of the column head and the casing sleeve consists of a housing 1 (figure 2), which has two parts. On each of the parts, two projections 2 are welded with holes for the bolt connection 3, as a means of fixing the parts of the camera. In the cavity of the housing 1 is a detachable, consisting of two halves of a self-sealing rubber sleeve 6 with a chamber 11 for the crimping agent. The rubber element is fixed at the time of its installation by perforated metal half rings 8. To supply the crimping agent into the chamber 11, a tube 7 is used. Rubber half cuffs 6 have projections 9 at the end on one side and grooves 10 on the other half in order to create a tight joint of the mating half cuffs.

 For accurate connection of the detachable halves of the housing 1, on one part of the housing there are guide grooves 5, and on the other part, metal tabs 4.

 The device operates as follows.

 After installing the casing head 12 on the casing 13, it becomes necessary to crimp the threaded connection 14. The chamber for crimping is wound onto the crimped threaded connection and fastened by bolt connection 3. Self-sealing cuffs 6 form a tight cavity around the test connection 14. A crimping agent is introduced through the tube 7 using which is being tested.

Claims (1)

 CAMERA FOR TESTING A THREADED PIPE CONNECTION, comprising a two-part body, means for securing the body parts, a detachable self-sealing sleeve located in the body cavity forming an airtight cavity when the camera is installed on the surface of the test compound, and means for supplying the crimping agent, characterized in that the parts the cases have guiding elements in the form of metal protrusions on one part of the case and rectangular grooves for their location on the other part of the case, Nia housing parts are designed as bolted connections, and the self-sealing collar is made in two parts.

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