Production logging manifold packer

A packer and flow-collection technology, which is applied in sealing/isolation, measurement, wellbore/well components, etc., can solve inaccurate measurement data, inconvenient maintenance, unreliable work of production logging flow-collecting packers, etc. problem, to achieve the effect of accurate measurement data, convenient maintenance and reliable performance

Active Publication Date: 2017-11-07
大庆宏测技术服务有限公司
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of unreliable work, inaccurate measurement data and inconvenient maintenance of the existing production logging header packer, the present invention provides a production logging header packer, the production logging header packer The instrument is convenient for testing in difficult wells with complex well conditions, simple structure, easy maintenance, high reliability and accurate measurement results

Method used

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  • Production logging manifold packer

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] Depend on figure 1 As shown, a production logging header packer includes a housing, a DC geared motor 12, an elastic support piece 3 and a packing cloth 4, and the output shaft of the DC geared motor 12 is connected through a movable coupling 11 A ball screw 10, the ball screw 10 is externally connected with a ball screw nut 9, after the DC reduction motor 12 is started, the ball screw 10 can be driven to rotate through the movable coupling 11, and the ball screw nut 9 can be used to rotate the ball screw The rotational motion of the ball screw 10 becomes linear motion. The ball screw nut 9 is externally fixed with a two-way push-pull plate 7. The two-way push-pull plate 7 is two oppositely arranged vertical flat plates. The upper and lower ends of the two flat plates are respectively provided with a top plate and a bottom plate, wherein the bottom plate and the bal...

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Abstract

The invention relates to a production logging flow collecting packer. It mainly solves the problems of unreliable work, inaccurate measurement data and inconvenient maintenance of the existing production logging header packer. It is characterized in that: the ball screw (10) is externally connected with a ball screw nut (9), the ball screw nut (9) is externally fixed with a two-way push-pull plate (7), and the top of the two-way push-pull plate (7) passes through the push rod (15) Connect the sampling sleeve (18), the push rod (15) is externally connected with a pull key (6), the two sides of the pull key (6) are fixed with a wedge-shaped main body (5), and the wedge-shaped main body (5) and its outer sheath Several spring support pieces (3) are arranged between (1), and a packing cloth (4) is arranged on the outside of the wedge-shaped main body (5). The production logging flow collecting packer is convenient for testing in various difficult wells with complex well conditions, has a simple structure, is easy to maintain, has high reliability and accurate measurement results.

Description

technical field [0001] The invention relates to the field of oil fields, in particular to a production logging header packer. Background technique [0002] At present, production logging has been carried out in most oilfields, and the production scale of flow-collecting production logging instruments is increasing, and the types are also various, gradually becoming the main tool for dynamic monitoring of oilfield development. The production logging gathering packer is a key part of the gathering logging tool, and the logging usage and maintenance and assembly scale are relatively large. The quality of the gathering packer determines the success rate of well logging and the accuracy of measurement data In particular, the measurement of flow rate and water cut data requires the packing cloth of the packer to be replaced almost every time the data is collected. [0003] At present, there are many problems in the widely used manifold packer. Take the impedance logging tool as a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/12E21B47/00
Inventor 徐闻泽夏青王沿栋
Owner 大庆宏测技术服务有限公司
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