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CN-121976787-A - Anti-scale pipe column for microelectronic induced transfer scale formation and use method thereof

CN121976787ACN 121976787 ACN121976787 ACN 121976787ACN-121976787-A

Abstract

The invention discloses a scale prevention pipe column for microelectronic induced transfer scale formation and a use method thereof, the scale prevention pipe column is connected below the oil well pump, and oil well liquid enters the reciprocating plunger pump after passing through the pipe column. The anti-scale pipe column comprises an outer sleeve, a negative potential power supply, a conductive central pipe and a lower joint with a scale collecting cavity, wherein the upper end of the outer sleeve is connected with an oil pump through a connecting nipple, the lower end of the outer sleeve is connected with the lower joint, a liquid inlet hole is formed in the lower portion of the outer sleeve, an insulating sleeve is arranged on the inner wall of the outer sleeve, the conductive central pipe is vertically arranged in the outer sleeve through an insulating bracket, and the negative potential power supply is fixed on the conductive central pipe. The pipe column utilizes negative potential to induce a scaling medium electric field to induce scale ions to form scale in the pipe column and collect the scale ions in the scale collecting cavity, so that liquid is prevented from entering an oil pump for scaling, the oil extraction efficiency is effectively improved, and the pump detection period is prolonged.

Inventors

  • JING ZIQIANG
  • WANG JINCHENG
  • FU HEPING

Assignees

  • 成都澍尔机械制造有限公司

Dates

Publication Date
20260505
Application Date
20260326

Claims (10)

  1. 1. A microelectronic scale prevention pipe column for inducing and transferring scale is characterized in that the scale prevention pipe column is connected below an oil well pump, liquid in the oil well enters the oil well pump after passing through the scale prevention pipe column, and the oil well pump is a reciprocating plunger pump; The anti-scale pipe column comprises an outer sleeve, a negative potential power supply, a conductive central pipe and a lower joint, wherein the upper end of the outer sleeve is connected with the oil pump through a connecting nipple, the negative potential power supply is fixed on the conductive central pipe, the conductive central pipe is vertically arranged in the outer sleeve through an insulating bracket, and the lower joint is provided with a scale collecting cavity and is connected with the lower end of the outer sleeve; the lower part of the outer sleeve is provided with a liquid inlet hole, and the liquid inlet hole is positioned at the upper part of the scale collection cavity; an insulating sleeve is arranged on the inner wall of the outer sleeve.
  2. 2. The scale control column of claim 1, wherein the negative potential power source is a solid metal negative potential battery.
  3. 3. The scale control pipe column of claim 1, wherein the conductive central pipe is fixedly connected with an induced transfer spiral blade extending along the axial direction, the induced transfer spiral blade conducts negative potential on the conductive central pipe, and the lower end of the induced transfer spiral blade extends to the lower side of the liquid inlet hole.
  4. 4. A scale control pipe column for microelectronic induced transfer scale according to claim 3, wherein said induced transfer screw blade is divided into a constant pitch part and a gradual pitch part, wherein the gradual pitch part is located at the lower part, said liquid inlet is located at the gradual pitch part, the pitch of the gradual pitch part is increased from the lower part to the upper part, and the pitch of the constant pitch part is not smaller than the maximum pitch of the gradual pitch part.
  5. 5. A scale control string according to claim 4 wherein the length of the graduated pitch portion is less than the length of the constant pitch portion.
  6. 6. A scale control string according to claim 4, wherein the helical blade surface roughness of the progressive pitch portion is less than the helical blade surface roughness of the constant pitch portion.
  7. 7. A method for using the microelectronic transfer scale-inducing pipe column, which is characterized in that the method comprises the following steps: the anti-scaling pipe column is assembled, so that stable negative potential of the induced transfer helical blade is ensured under the action of a negative potential power supply; placing the scale prevention pipe column provided with the oil pump in a petroleum well to enable the liquid level of the petroleum well to be above a liquid inlet hole; acquiring characteristic parameters of an oil pump and oil supply capacity parameters of the oil well, wherein the characteristic parameters comprise outlet flow parameters and temperature parameters; analyzing the characteristic parameters; And selecting an execution strategy according to the analysis result.
  8. 8. The method of claim 7, wherein the method for obtaining the outlet flow parameter is: Obtaining theoretical displacement and actual outlet flow of the oil pump; Calculating an outlet flow parameter from a minimum economic flow based on the theoretical displacement and the actual outlet flow, the minimum economic flow being a set lower threshold; The method for acquiring the temperature parameter comprises the following steps: monitoring the temperature of a pump shell and the environmental temperature of the oil pump to obtain measured temperature rise; deducting the reference temperature rise to obtain abnormal temperature rise, and calculating the temperature parameter according to the abnormal temperature rise; The method for acquiring the oil well oil supply capacity parameters comprises the following steps: Monitoring the pressure of a wellhead sleeve, and calculating the depth of a working fluid level; calculating a liquid supply index according to the depth of the working fluid level and the actual outlet flow; and comparing the liquid supply index with the initial liquid supply index to obtain the liquid supply capacity parameter of the oil well.
  9. 9. The method for using the microelectronic induced transfer scale according to claim 7, wherein the method for analyzing the characteristic parameters is to normalize the characteristic parameters and the oil well oil supply capacity parameters, and take the normalized values as analysis results; the parameter normalization method comprises the following steps: F= α× (ω 1 ×N Q +ω 2 ×N T ) + [1-α] ×β; Wherein F is an analysis result, N Q is an outlet flow parameter, and N T is a temperature parameter; omega 1 、ω 2 is the weight coefficient of the outlet flow parameter and the temperature parameter respectively; Beta is a neutral correction value; alpha is a liquid supply capacity correction coefficient, and is determined by the liquid supply capacity WSC.
  10. 10. The method of using the microelectronic induced transfer scale according to claim 7, wherein: the execution strategy comprises the following steps: The first strategy is a maintenance mode, and the specific implementation means is to continuously maintain the current state; the second strategy is a lifting mode, and the specific implementation means is that the stroke frequency of the oil pump is improved; The third strategy is a manual intervention mode, which is specifically implemented by disassembling an antiscaling pipe column, replacing or cleaning a central conductive pipe with an induced transfer helical blade, and detecting or replacing a negative potential power supply; the forced replacement mode is implemented by replacing a negative potential power supply, and replacing or cleaning a central conductive tube for inducing to transfer the spiral blade; The logic for selecting the execution policy is as follows: Executing a strategy I when the analysis result is smaller than a first threshold value; Executing a second strategy when the analysis result is greater than or equal to the first threshold value and smaller than the second threshold value; executing a third strategy when the analysis result is greater than or equal to the second threshold value; and executing the fourth strategy when the execution time reaches the preset time.

Description

Anti-scale pipe column for microelectronic induced transfer scale formation and use method thereof Technical Field The invention relates to the technical field of scale induction in petroleum exploitation, in particular to a scale prevention pipe column for transferring scale into scale through microelectronic induction and a use method thereof. Background Oil extraction of an oil pump is a main mechanical mode of oil exploitation in oil and gas exploitation, and in oil extraction of the oil pump, the exploited stratum liquid contains a large amount of stratum water, so that scaling of oil pump components affects oil pumping efficiency and causes failure of the oil pump, and the scaling of the oil pump components becomes an important adverse factor in oil extraction of the oil pump. When the oil pump is used for oil extraction, stratum liquid is sucked into the oil pump and lifted up, so that the underground liquid is lifted to the ground, the stratum liquid passes through parts such as a valve seat, a pump barrel and a plunger of the oil pump, and calcium, magnesium, silicon, barium, strontium and other scale ions in the stratum water are easily adsorbed on the parts of the pump and are gradually thickened due to ion adsorption and the like, so that the valve seat of the oil pump is not tightly sealed and is lost due to the thickening of the scale, the plunger is blocked in the pump barrel of the oil pump and the like, underground faults such as stopping production are caused, and oil well operation and construction are required to be overhauled, so that the scaling of the oil pump influences the production efficiency of the oil well and the cost of construction and overhauling is increased. Disclosure of Invention Therefore, in order to solve the defects, the invention provides a scale prevention pipe column for micro-electron induced transfer of scale and a use method thereof, wherein the scale prevention pipe column utilizes a solid metal negative potential battery and a negative potential induced transfer scale forming blade to change an electric field of a scale forming medium in oil extraction of an oil pump, so that scale ions are induced to form scale in the scale prevention pipe column for micro-electron induced transfer of scale, liquid is prevented from entering the oil pump to scale to damage the oil extraction of the oil pump, the oil extraction efficiency is improved, and the pump detection period is prolonged. In one aspect, the invention provides a microelectronic scale prevention pipe column for inducing and transferring scale, the scale prevention pipe column is connected below an oil well pump, liquid in the oil well enters the oil well pump after passing through the scale prevention pipe column, and the oil well pump is a reciprocating plunger pump; The anti-scale pipe column comprises an outer sleeve, a negative potential power supply, a conductive central pipe and a lower joint, wherein the upper end of the outer sleeve is connected with the oil pump through a connecting nipple, the negative potential power supply is fixed on the conductive central pipe, the conductive central pipe is vertically arranged in the outer sleeve through an insulating bracket, and the lower joint is provided with a scale collecting cavity and is connected with the lower end of the outer sleeve; the lower part of the outer sleeve is provided with a liquid inlet hole, and the liquid inlet hole is positioned at the upper part of the scale collection cavity; an insulating sleeve is arranged on the inner wall of the outer sleeve. Preferably, the negative potential power supply is a solid metal negative potential battery. Optionally, the conductive central tube is fixedly connected with an induced transfer helical blade extending along the axis direction, the induced transfer helical blade is conducted with negative potential on the conductive central tube, and the lower end of the induced transfer helical blade extends to the lower side of the liquid inlet hole. Optionally, the induced transfer helical blade is divided into a constant pitch part and a gradual change pitch part, wherein the gradual change pitch part is positioned at the lower part, the liquid inlet hole is positioned at the gradual change pitch part, the pitch of the gradual change pitch part is increased from the bottom to the top, and the pitch of the constant pitch part is not less than the maximum pitch of the gradual change pitch part. Optionally, the length of the gradual pitch portion is smaller than the length of the constant pitch portion, and preferably, the ratio of the length of the gradual pitch portion to the length of the constant pitch portion is 3:7. Optionally, the helical blade surface roughness of the gradual pitch portion is less than the helical blade surface roughness of the constant pitch portion. In another aspect, the present invention also provides a method for using the microelectronic induced transfer scale, which is