Multi-well-group electromagnetic wax control transmission device and method

Abstract

The invention relates to a multi-well-group electromagnetic wax control transmission device and method. The device and the method have the technical scheme that a plurality of parallel connection production oil wells are connected with one side of a pipe column; one side of the pipe column is connected with a ground oil conveying pipeline; an electromagnetic wax control device is arranged on the ground oil conveying pipeline; the electromagnetic field transmission direction is along the pipe column; the right side of a controller is provided with a center pipe; the outer side of the middle of the center pipe is provided with an electromagnetic conversion main body; the upper end and the lower end of the center pipe are provided with connection hoops; a temperature control protection material layer is arranged at the outer side of the center pipe; an insulation liquid oil layer is arranged at the outer side of a coil layer; a sealing connector is arranged at the outer side of each of the upper end and the lower end of the center pipe; an oil pipe connector is arranged at the outer side of each sealing connector. The device and the method have the beneficial effects that the device and the method can be simultaneously applied to the wax control of the plurality of parallel connection well groups and ground pipelines; the wax control effect is good; the effect can be achieved for a plurality of wells at the same time; the device is arranged on the wellhead flow process, and is connected into a whole with the oil conveying pipeline; the equipment can be installed at any time; the production halt or underground operation is not needed.

Description

technical field [0001] The invention relates to an oil field wax prevention device, in particular to a multi-well group electromagnetic wax prevention device and method. Background technique [0002] The deposition and accumulation of wax in the oil well will block the oil-producing layer, increase the oil flow resistance, reduce the oil production, seriously affect the production volume and production process of the oil well, and directly affect the stable production and benefit of the oil well; for machinery and equipment, it will Make the machine wear and tear, increase the workload, wax deposition will affect the suspension point load, wax deposition will cause the increase of alternating load, and then affect the working life of the sucker rod; the wax deposition phenomenon in each link of the operation will affect the entire Exploitation and development of oil and gas; oil well waxing has brought a lot of work to daily management, increasing the possibility and probabi...

AI Technical Summary

Problems solved by technology

[0002] The deposition and accumulation of wax in the oil well will block the oil-producing layer, increase the oil flow resistance, reduce the oil production, seriously affect the production volume and production process of the oil well, and directly affect the stable production and benefit of the oil well; for machinery and equipment, it will Make the machine wear and tear, increase the workload, wax deposition will affect the suspension point load, wax deposition will cause the increase of alternating load, and then affect the working life of the sucker rod; the wax deposition phenomenon in each link of the operation will affect the entire Exploitation and development of oil and gas; oil well waxing has brought a lot of work to daily management, increasing the possibility and probability of downhole accidents; oil well waxing has brought great difficulties to oil and gas gathering and transportation, and oilfield development, requiring many technical and technological measures , which increases the development cost and affects the economic effect of the oil field

In the process of oil exploitation, wax removal and anti-wax production in oil wells has always been a technical problem in oilfield production. The technologies usually used for wax removal, thermal washing, chemical wax removal and downhole magnetic anti-wax are all wax removal methods for oil production wells. Effective measures for wax prevention. These technologies are applied to a single wax-deposited oil well. However, a set of devices for these technologies cannot act on several wells at the same time. At the same time, chemical wax prevention and other technologies also have the following shortcomings or shortcomings: 1. The operation is cumbersome; 2. Long cycle and high cost; ③ affects production and pollutes the stratum; ④ vulnerable to rainy weather and other weather reasons and cannot be washed by periodic dosing

With the development of technology, some shortcomings of the single well anti-wax device are gradually revealed: 1. The single-well anti-wax device can only be applied to a single well. Drive more than 2 production oil wells; 2. The single-well anti-wax device needs to be installed on the single well one by one, which is time-consuming and labor-intensive, and increases additional material and labor costs;

[0003] 3. The electromagnetic field generated by the single well anti-wax device can only extend in one direction, and cannot extend and act on the surface oil pipeline at the same time, so the direction must be checked when installing, and the installation must be in accordance with the specified direction

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