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Method for manufacturing flexible oil pumping rope

A manufacturing method and oil pumping technology, which can be applied to auxiliary equipment for rope making, cable/conductor manufacturing, textile and paper making, etc., can solve the problems of easily damaged protective layer, low strength and friction, environmental pollution, etc., and prevent strand breakage. , prolong the service life, improve the effect of service life

Active Publication Date: 2012-11-21
哈尔滨景宽科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The steel wire rope is used as the sucker rod, which has high strength, low friction with the oil pipe, and strong corrosion resistance. However, after long-term friction and harsh working conditions, the protective layer coated on the outer surface of the steel wire rope is easily damaged and cracks occur. Peeling and other phenomena, and, because the steel wire rope is made of a single steel wire through twisting and tying, there are gaps between single steel wires, steel wire strands and steel wire strands, and the gaps are connected to each other. When used in oil wells with pressure, the downhole liquid will penetrate and rise through the gaps in the internal structural parts of the wire rope, and even reach the ground, causing pollution to the environment

Method used

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  • Method for manufacturing flexible oil pumping rope
  • Method for manufacturing flexible oil pumping rope
  • Method for manufacturing flexible oil pumping rope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Manufacture of sealed steel rope

[0036] Such as figure 1 The manufacturing process flow chart of the sealing steel rope of the present invention is shown in the flow chart.

[0037] First, a plurality of steel wire strands 4 are twisted into steel ropes by using a twisting machine 13, and a temperature-controlled crimping die 15 is provided at the junction point 4a of twisting, and a temperature-controlled crimping die 15 is provided with a material injection hole 15b. A filling machine 14 is arranged above it, and the filling machine 14 is connected with the injection hole 15b, so that the filling machine 14 injects the filler into the twisted joint point 4a through the injection hole 15b, and at the same time, through the temperature control pressure line The heating body 15a on the mold 15 heats the joint point 4a, so that the poured filler can reach a viscous state, so that the filler can fill the gap space inside the steel wire strand, thereby forming a seale...

Embodiment 2

[0059] 1. Preparation of communication wires

[0060] The multi-strand copper wire conductor is coated with a layer of high-temperature resistant outer protective insulation layer to make a communication wire. Among them, the communication wire requires low resistivity, high temperature resistance of the outer sheath, high tensile strength, good resistance to fracture or insulation during the stretching process, and reliable working stability.

[0061] 2. Manufacture of sealed steel rope

[0062] Such as Figure 1a As shown, the communication wire 9 prepared in step 1 is twisted into a communication cable strand 5, and the communication cable strand 5 is passed through the twisting machine 13, so that the communication cable strand 5 is twisted together with the multi-strand steel wire strand 4, and the rest The process is the same as that in Embodiment 1 to prepare the sealing steel rope 3a, and make the communication cable strand 5 located at the core of the sealing steel ...

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Abstract

The invention discloses a method for manufacturing a flexible oil pumping rope. The method comprises the following steps of: twisting a plurality of steel wire strands into a sealed steel rope by adopting twisting equipment; weaving a silk screen for binding the steel rope on the outer surface of the sealed steel rope; and coating an outer protective sealing layer on the outer surface of the silkscreen, and closing the silk screen and the sealed steel rope in the outer protective sealing layer. Single steel wires or steel wire strands of the oil pumping rope manufactured by adopting the method form a sealed whole, and leakage of the whole oil pumping rope is not caused even if the local oil pumping rope is damaged, so the use of the oil pumping rope is not affected, and the service life of the oil pumping rope is prolonged.

Description

technical field [0001] The invention relates to a method for manufacturing a flexible steel rope, in particular to a method for manufacturing a flexible oil rope used on a lifting oil pumping unit in the petroleum industry. Background technique [0002] The sucker rod is an important part of the oil pumping equipment. It transmits the motion and energy of the pumping unit to the downhole pump. The fatigue strength and service life of the sucker rod determine and affect the maximum pumping depth and discharge quantity. At present, the sucker rods used in the pumping unit are mainly composed of a plurality of low-carbon alloy round steel sucker rods connected end to end, and each sucker rod is connected by a coupling. Because the sucker rod is often subjected to various loads, wear and corrosion during the oil pumping process, its coupling is prone to tripping or even breaking under the condition of long-term alternating, shock and vibration loads, and the sucker rod itself ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/14D07B7/02D07B7/12D07B7/16H01B11/00H01B13/22
CPCD07B2207/4027D07B7/145
Inventor 鄂德刚
Owner 哈尔滨景宽科技开发有限公司
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