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Dual bore microelectrode pusher

A technology of micro-electrode and pusher, which is applied in wellbore/well components, measurement, earthwork drilling and production, etc. It can solve the problem that the pusher arm of the pusher is opened or retracted at the same time, and the microelectrode plate cannot be continuously attached to the well wall Measurement and other issues, to achieve accurate and efficient measurement values

Active Publication Date: 2017-09-26
沈阳新锦精密仪器仪表研究所
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Problems solved by technology

[0006] The purpose of the present invention is to provide a micro-electrode pusher with double well diameters, which fundamentally solves the problems that the pusher arms of the existing pusher must be opened or folded at the same time, and the micro-electrode plate cannot be continuously attached to the well wall for measurement. It has the advantages of simple structure and high measurement efficiency

Method used

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  • Dual bore microelectrode pusher
  • Dual bore microelectrode pusher
  • Dual bore microelectrode pusher

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Embodiment Construction

[0033] The following combination Figure 1~18 , the content of the present invention will be described in detail through specific embodiments. The double-bore microelectrode pusher includes a drive assembly, a bore arm assembly, a spring rod assembly and a measuring arm assembly assembled in sequence. The drive assembly is provided with a switch assembly, and the spring rod assembly is provided with a pole plate assembly. Wherein, the driving assembly includes a motor housing 1, a number of struts 14 limited in the motor housing 1, a motor 3 limited between the struts 14, a lead screw 34 installed at the output end of the motor 3, and a screw 34 limited in the lead screw. The screw nut I 41 on the bar 34, the switch assembly that is limited on the leading screw 34, the joint 37 that is sleeved on the leading screw 34 outside, one end of the joint 37 is equipped with some pins 6 with wires at the ends, and the pins 6 Circumferentially distributed on the outside of the leading ...

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Abstract

A double-bore microelectrode pusher, including sequentially assembled drive assembly, borehole arm assembly, spring rod assembly and measuring arm assembly, the drive assembly is provided with a switch assembly, and the spring rod assembly is provided with a pole plate assembly, The technical points are: the drive assembly includes the motor casing, the motor limited in the motor casing, the lead screw installed at the output end of the motor, the screw nut I limited on the lead screw, the switch assembly limited on the lead screw, and the set On the joint outside the lead screw, there are needle roller bearings and thrust bearings between the lead screw and the joint, and there are several sealing rings between the lead screw and the joint. A number of pins; there is an oil inlet hole on one side of the joint, and an oil passage connected to the oil inlet hole is provided in the joint, and a top screw is provided at the outlet of the oil passage. The limit has steel balls. It has the advantages of simple structure, high measurement efficiency and the like.

Description

technical field [0001] The invention belongs to petroleum wellhead equipment, in particular to a pushing mechanism for measuring diameter or borehole-related dimensions, in particular to a double-diameter microelectrode pushing device. Background technique [0002] In recent years, the number of high-inclination directional wells and horizontal wells has been increasing. The microsphere focusing logging tool is a micro-resistivity instrument, which is used to measure the resistivity of the formation near the well wall, that is, the flushing zone. The probe (plate) and the well Whether the wall contact is good or not is the key to ensure the logging quality. The instrument usually consists of three parts: electronic instrument, transmission system and pusher. The pusher can be divided into hydraulic pusher and mechanical pusher according to the different power sources. When logging, use a pusher to stick the instrument probe, that is, the polar plate, to the well wall to ens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B47/08E21B49/00
Inventor 赵曦李刚王绍山丁文强
Owner 沈阳新锦精密仪器仪表研究所
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