CN112855093A

CN112855093A - Position adjusting method and device of sucker rod and storage medium

Info

Publication number: CN112855093A
Application number: CN201911100316.7A
Authority: CN
Inventors: 赵常明; 张鹏; 王世谦; 冯峰; 夏瑛; 王真
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2021-05-28
Anticipated expiration: 2039-11-12
Also published as: CN112855093B

Abstract

The application discloses a position adjusting method and device of a sucker rod and a storage medium, and belongs to the technical field of oil extraction in oil fields. The method comprises the following steps: the method comprises the steps of obtaining the load of a suspension point of an oil pumping unit when a sucker rod moves downwards in an oil pumping well, the length of the sucker rod, the elastic modulus of the sucker rod and the diameter of the sucker rod, determining the elastic deformation amount generated when the sucker rod moves downwards to a bottom dead center according to the obtained load of the suspension point of the oil pumping unit when the sucker rod moves downwards, determining the shock-proof distance of the oil pumping well according to the determined elastic deformation amount, and finally adjusting the position of the sucker rod in the oil pumping well according to the determined shock-proof distance of the oil pumping well. This application can improve the accuracy of the beam-pumping unit well scour protection apart from that determines to can rationally adjust the position of sucker rod in the beam-pumping unit well, thereby can avoid too much the rising sucker rod because of the beam-pumping unit well scour protection apart from too big that determines, and then influence the pumping efficiency of oil-well pump.

Description

Position adjusting method and device of sucker rod and storage medium

Technical Field

The application relates to the technical field of oil extraction in oil fields, in particular to a method and a device for adjusting the position of a sucker rod and a storage medium.

Background

As shown in fig. 1, when a sucker rod 2 in an oil pumping well 1 descends to a bottom dead center, a suspension point of the oil pumping unit immediately stops running downwards, but the sucker rod 2 connected below the suspension point of the oil pumping unit continues to run downwards under the action of inertial load and other forces, so that the sucker rod 2 generates elastic deformation, and a piston 3 of an oil well pump connected below the sucker rod 2 also continues to run downwards. In order to avoid mechanical damage caused by the fact that the piston 3 continuously moves downwards to touch the fixed valve 4 in the oil well pump, the sucker rod 2 is usually adjusted upwards by a distance (the distance is called as the shock-proof distance of the oil well pump) after the sucker rod 2 is completely put into the oil well pump 1, and therefore, the determination of the shock-proof distance of the oil well pump is very important.

At present, an empirical method is often adopted when determining the impact distance of the pumping well. Specifically, every time the oil well pump is driven to 1000m (meter), the sucker rod 2 is adjusted upwards by 0.6-0.8 meter, and when the oil well pump is driven to less than 1000 meters or more than 1000 meters, the oil well pump can be converted according to the proportion to obtain the anti-impact distance of the oil pumping well. After the impact distance of the pumping well is determined, the pumping rod 2 can be adjusted upwards according to the determined impact distance of the pumping well after the pumping rod 2 is completely put into the pumping well 1.

However, in the related art, the impact prevention distance of the pumping well determined according to the pump-down depth is not accurate, so that the position of the sucker rod in the pumping well cannot be reasonably adjusted, and the problem that the pumping efficiency of the oil well pump is reduced due to the fact that the determined impact prevention distance of the pumping well is too large and the sucker rod is excessively adjusted upwards often exists, and the pumping efficiency of the oil well pump is affected.

Disclosure of Invention

The embodiment of the application provides a position adjusting method and device of a sucker rod and a storage medium, and can solve the problem that the anti-impact precision of a sucker rod well determined in the related technology is low. The technical scheme is as follows:

in a first aspect, a method for adjusting the position of a sucker rod is provided, the method comprising:

acquiring load of a suspension point of a pumping unit when a pumping rod in a pumping well descends, the length of the pumping rod, the elastic modulus of the pumping rod and the diameter of the pumping rod;

determining the elastic deformation quantity generated when the sucker rod descends to a bottom dead center according to the load of the suspension point of the sucker rod when the sucker rod descends, the length of the sucker rod, the elastic modulus of the sucker rod and the diameter of the sucker rod;

determining the shock-proof distance of the pumping well according to the elastic deformation generated when the pumping rod descends to the bottom dead center;

and adjusting the position of the sucker rod in the pumping well according to the anti-impact distance of the pumping well.

Optionally, the obtaining a load that a pumping unit suspension point receives when a pumping rod in a pumping unit well descends includes:

acquiring the gravity of the sucker rod in the liquid in the pumping well, the friction of the sucker rod when the sucker rod descends and the inertial load of the sucker rod when the sucker rod descends;

and vector summation is carried out on the gravity of the sucker rod in the liquid in the pumping well, the friction force of the sucker rod when the sucker rod descends and the inertial load of the sucker rod when the sucker rod descends, so that the load of the suspension point of the pumping unit when the sucker rod descends is obtained.

Optionally, the acquiring the gravity force of the sucker rod in the liquid in the pumping well comprises:

acquiring the density of the sucker rod and the density of liquid in the pumping well;

and multiplying the difference between the density of the sucker rod and the density of the liquid in the pumping well, the volume of the sucker rod and the gravity acceleration to obtain the gravity of the sucker rod in the liquid in the pumping well.

Optionally, the acquiring the friction force received by the sucker rod when the sucker rod goes down includes:

acquiring friction force between a piston and a pump barrel of an oil well pump in the oil pumping well, friction force between the sucker rod and an oil pipe in the oil pumping well and friction force between the sucker rod and liquid in the oil pipe;

and accumulating the friction force between a piston and a pump cylinder of an oil well pump in the oil pumping well, the friction force between the sucker rod and an oil pipe in the oil pumping well and the friction force between the sucker rod and liquid in the oil pipe to obtain the friction force applied by the sucker rod during descending.

Optionally, the acquiring friction between a piston and a pump barrel of an oil pump in the rod pumped well, friction between the sucker rod and an oil pipe in the rod pumped well, and friction between the sucker rod and a liquid in the oil pipe includes:

acquiring a gap between the piston and the pump cylinder, the diameter of the piston, a sliding friction coefficient between the sucker rod and the oil pipe, a positive pressure of the sucker rod on a contact point of the oil pipe, dynamic viscosity of fluid in the oil pipe and an average running speed of the sucker rod;

determining the friction force between the piston and the pump cylinder according to the clearance between the piston and the pump cylinder and the diameter of the piston;

determining the friction force between the sucker rod and the oil pipe according to the sliding friction coefficient between the sucker rod and the oil pipe and the positive pressure of the sucker rod on the contact point of the oil pipe;

and determining the friction force between the sucker rod and the liquid in the oil pipe according to the length of the sucker rod, the diameter of the sucker rod, the dynamic viscosity of the fluid in the oil pipe and the average running speed of the sucker rod.

Optionally, the acquiring the inertial load to which the sucker rod is subjected when descending includes:

acquiring the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit;

and determining the inertial load of the sucker rod during descending according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit.

Optionally, the determining, according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotation radius of a crank in the pumping unit, and the length of a connecting rod in the pumping unit, the inertial load that the sucker rod is subjected to when going down includes:

according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit, determining the inertial load of the sucker rod when the sucker rod goes down through the following formula:

wherein, F is₂Is the inertial load to which the sucker rod is subjected during descending, D₁Is the diameter of the sucker rod, L is the length of the sucker rod, p₁The density of the sucker rod, the S of the sucker rod, the stroke number of the oil pumping unit, the r of the crank, and the length of the connecting rod.

acquiring a corresponding indicator diagram when an oil well pump in the pumping well works;

and reading the load of the suspension point of the pumping unit when the sucker rod descends from the indicator diagram.

Optionally, the determining, according to the load applied to the pumping unit suspension point when the pumping unit goes down, the length of the pumping unit, the elastic modulus of the pumping unit, and the diameter of the pumping unit, the amount of elastic deformation generated when the pumping unit goes down to the bottom dead center includes:

according to the load of the suspension point of the pumping unit when the pumping unit descends, the length of the pumping rod, the elastic modulus of the pumping rod and the diameter of the pumping rod, the elastic deformation quantity generated when the pumping rod descends to a bottom dead center is determined by the following formula:

h is the elastic deformation generated when the sucker rod goes down to the bottom dead center, F is the load of the suspension point of the pumping unit when the sucker rod goes down, L is the length of the sucker rod, E is the elastic modulus of the sucker rod, and D₁Is the diameter of the sucker rod.

Optionally, the determining the impact prevention distance of the rod-pumped well according to the elastic deformation generated when the sucker rod descends to the bottom dead center comprises:

and adding the elastic deformation quantity generated when the sucker rod descends to the bottom dead center with a preset increment to obtain the impact prevention distance of the pumping well.

In a second aspect, there is provided a position adjustment device for a sucker rod, the device comprising:

the acquisition module is used for acquiring the load of a suspension point of the pumping unit when a pumping rod in a pumping well descends, the length of the pumping rod, the elastic modulus of the pumping rod and the diameter of the pumping rod;

the first determining module is used for determining the elastic deformation quantity generated when the sucker rod descends to a bottom dead center according to the load of the suspension point of the sucker rod when the sucker rod descends, the length of the sucker rod, the elastic modulus of the sucker rod and the diameter of the sucker rod;

the second determining module is used for determining the shock-proof distance of the pumping well according to the elastic deformation generated when the pumping rod descends to the bottom dead center;

and the adjusting module is used for adjusting the position of the sucker rod in the rod-pumped well according to the anti-impact distance of the rod-pumped well.

Optionally, the obtaining module includes:

the first acquisition submodule is used for acquiring the gravity of the sucker rod in liquid in the pumping well, the friction of the sucker rod during descending and the inertial load of the sucker rod during descending;

the first calculation submodule is used for carrying out vector summation on the gravity of the sucker rod in liquid in the pumping well, the friction of the sucker rod in the descending process and the inertial load of the sucker rod in the descending process to obtain the load of the suspension point of the pumping unit in the descending process of the sucker rod.

Optionally, the first obtaining sub-module includes:

the first acquisition unit is used for acquiring the density of the sucker rod and the density of liquid in the pumping well;

and the first calculation unit is used for multiplying the difference between the density of the sucker rod and the density of the liquid in the pumping well, the volume of the sucker rod and the gravity acceleration to obtain the gravity of the sucker rod in the liquid in the pumping well.

Optionally, the first obtaining sub-module further includes:

the second acquisition unit is used for acquiring the friction force between a piston and a pump cylinder of an oil well pump in the oil pumping well, the friction force between the sucker rod and an oil pipe in the oil pumping well and the friction force between the sucker rod and liquid in the oil pipe;

and the second calculation unit is used for accumulating the friction force between a piston and a pump cylinder of an oil well pump in the oil pumping well, the friction force between the sucker rod and an oil pipe in the oil pumping well and the friction force between the sucker rod and liquid in the oil pipe to obtain the friction force applied to the sucker rod during descending.

Optionally, the second obtaining unit is configured to:

Optionally, the first obtaining sub-module further includes:

the third acquisition unit is used for acquiring the density of the pumping rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit;

the first determining unit is used for determining the inertial load borne by the sucker rod during descending according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke frequency of the sucker rod, the rotating radius of a crank in the sucker rod and the length of a connecting rod in the sucker rod.

Optionally, the first determining unit is configured to:

Optionally, the obtaining module includes:

the second obtaining submodule is used for obtaining a corresponding indicator diagram when an oil well pump in the oil pumping well works;

and the first reading submodule is used for reading the load of the suspension point of the pumping unit when the pumping unit descends from the indicator diagram.

Optionally, the first determining module is configured to:

Optionally, the second determining module includes:

and the second calculation submodule is used for adding the elastic deformation quantity generated when the sucker rod descends to the bottom dead center with a preset increment to obtain the impact prevention distance of the pumping well.

In a third aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores instructions, and the instructions, when executed by a processor, implement the steps of the sucker rod position adjusting method according to the first aspect.

In a fourth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to execute to implement the method of positional adjustment of a sucker rod as described in the first aspect above.

The technical scheme provided by the embodiment of the application can at least bring the following beneficial effects:

this application embodiment is when confirming rod-pumped well scour protection apart from, the elastic deformation that produces when having considered the sucker rod down to the bottom dead center, and can be according to the load that the beam-pumping unit hanging point that obtains received when the sucker rod is down, the length of sucker rod, the elastic modulus and the diameter of sucker rod, the elastic deformation volume that produces when the accurate calculation sucker rod is down to the bottom dead center, then according to the elastic deformation volume accurate calculation rod-pumped well scour protection apart from that determines, according to the rod-pumped well scour protection apart from that determines at last, adjust the position of sucker rod in the rod-pumped well. This application is when confirming from rod-pumped well scour protection apart from, is not simply according to the rough estimation beam-pumping unit scour protection apart from of pump-down degree of depth, so this application can improve the precision of the rod-pumped well scour protection apart from of determining to can be according to the position of the reasonable adjustment sucker rod in the rod-pumped well of rod-pumped well scour protection apart from of determining, thereby can avoid too much the sucker rod of transferring upward because of the rod-pumped well scour protection apart from too big of determining, and then influence the pumping efficiency of oil-well pump.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of a sucker rod and a pump in an oil well according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for adjusting the position of a sucker rod according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of an indicator diagram provided in an embodiment of the present application;

FIG. 4 is a flowchart of a method for acquiring a load applied to a suspension point of a pumping unit when a sucker rod descends according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a device for adjusting the position of a sucker rod according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another device for adjusting the position of a sucker rod according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Before explaining the embodiments of the present application in detail, an application scenario of the embodiments of the present application will be described.

At present, the impact prevention distance of the pumping well is often determined by an empirical method. When the oil pump is driven by 1000m, the sucker rod is adjusted up by 0.6-0.8 m, and when the oil pump is driven by less than 1000m or more than 1000m, the oil pump well can be converted according to the proportion to obtain the anti-impact distance of the oil pumping well. The shock-proof distance of the oil pumping well roughly estimated in this way is often too large, resulting in a large clearance volume (i.e., the volume corresponding to the space between the lower end of the piston and the fixed valve) in the pump barrel of the oil well pump. For some oil pumping wells with high gas-oil ratio, in the process that the mixed liquid of petroleum, natural gas and water flows from the stratum to the bottom of the oil pumping well and then flows to the suction inlet of an oil well pump, the natural gas in the mixed liquid can be separated from the mixed liquid along with the continuous reduction of the pressure of the mixed liquid, and the separated natural gas and the liquid (petroleum and water) in the mixed liquid enter the pump barrel of the oil well pump in a two-phase fluid state. Because the compressibility of gas is very big, when more gas is carried out the pump barrel, can lead to the fill factor of oil-well pump to descend and influence the pumping efficiency of oil-well pump. The filling factor of the oil well pump is the ratio of the volume of liquid entering the pump cylinder when the piston of the oil well pump moves upwards to the volume of liquid yielded by the piston, and is also the ratio of the liquid filling height in the oil well pump to the stroke of the oil well pump. Therefore, the impact distance of the oil pumping well needs to be reduced as much as possible while the piston is prevented from descending to touch the fixed valve, so that the pumping efficiency of the oil well pump is improved.

Based on this, the embodiment of the application provides a position adjustment method of a sucker rod, which is used for solving the problem that the impact-resistant precision of the sucker rod well determined in the related technology is low.

FIG. 2 is a flow chart of a method for adjusting the position of a sucker rod according to an embodiment of the present application, which is applied to a device for adjusting the position of a sucker rod, and the device for adjusting the position of a sucker rod can be integrated into a computer device. Referring to fig. 2, the method includes:

step 201: the computer equipment obtains the load of the suspension point of the pumping unit when the pumping rod goes down in the pumping well, the length of the pumping rod, the elastic modulus of the pumping rod and the diameter of the pumping rod.

The pumping unit includes a motor, ground equipment, moving parts, and the like. The electric energy conversion device comprises a motor, a ground device, a movable component, a motor, a speed reduction box, a connecting rod, a crank and the like, wherein the motor is used for converting the electric energy input into the motor into mechanical energy to drive the ground device to run, then the movable component is driven to move through the ground device, the ground device comprises a belt pulley, a speed reduction box, a connecting rod, a crank and the like, and the movable component comprises a. The suspension point of the pumping unit refers to a connection point between a horsehead of the pumping unit and a sucker rod.

In the embodiment of the present application, the computer device stores an operation construction data report, and the operation construction data report stores parameters related to the pumping well, such as the length of the pumping rod, the elastic modulus of the pumping rod, the diameter of the pumping rod, and the like. Therefore, the computer equipment can directly search parameters such as the length of the sucker rod, the elastic modulus of the sucker rod, the diameter of the sucker rod and the like in the operation construction data report.

In practical application, the pumping rod which is put into the pumping well is formed by combining a plurality of sections of pumping rods. Generally, the sucker rod can be formed by combining a plurality of sucker rods with the same diameter. Because the sucker rod with the smaller diameter has poorer bearing capacity but causes less load to ground equipment, and the sucker rod with the larger diameter has better bearing capacity but causes larger load to the ground equipment, in order to reduce the load caused to the ground equipment under the condition that the sucker rod meets the bearing requirement, a plurality of sections of sucker rods with different diameters can be combined and then put into the oil pumping well. For example, a smaller diameter sucker rod may be combined with a larger diameter sucker rod such that the smaller diameter sucker rod is located in the lower portion of the rod well and the larger diameter sucker rod is located in the upper portion of the rod well. When the pumping rod is made up of several sections of pumping rods with different diameters, the operation data report can also include the diameter of each section of pumping rod. In this way, the computer device can obtain the diameter of each sucker rod from the operation construction data report.

It should be noted that, after the rod-pumped well is completed, a technician may draw an operation construction data report according to actual construction conditions to record parameters related to the rod-pumped well. The technician may then store the job construction data report in the computer device. Of course, the computer device may also obtain the job construction data report in other manners.

In addition, the upstroke of the sucker rod corresponds to the process when the sucker rod moves from the well bottom to the well head, and the downstroke of the sucker rod corresponds to the process when the sucker rod moves from the well head to the well bottom. In the embodiment of the application, the load of the suspension point of the pumping unit when the sucker rod goes down is the load of the suspension point of the pumping unit in the downward stroke of the sucker rod.

In a possible mode, if the automation degree of the pumping well is higher, a load sensor and a displacement sensor can be arranged on the horse head, the load and the displacement of a suspension point can be measured in real time through the arranged load sensor and the arranged displacement sensor, and the load and the displacement measured at different moments are sent to an RTU (Remote Terminal Unit). After receiving the loads and displacements measured at different moments, the RTU can directly upload the corresponding relationships between the loads and displacements and the moments to the computer device; or, a coordinate value can be constructed by the load and the displacement measured at the same time to obtain a plurality of coordinate values, each coordinate value in the plurality of coordinate values is (displacement, load), a indicator diagram corresponding to the working of the oil well pump in the oil well is drawn according to the plurality of coordinate values, and then the indicator diagram is uploaded to the computer equipment.

The load that the beam-pumping unit suspension point received in the up-and-down stroke of sucker rod has certain law, when RTU is to upload the corresponding relation between load, displacement and its moment to computer equipment, computer equipment can obtain the stroke of beam-pumping unit, the stroke number of beam-pumping unit, the maximum load of suspension point in the up-stroke of sucker rod and minimum load of suspension point in the down-stroke of sucker rod (i.e. the load that the beam-pumping unit suspension point received when the sucker rod goes down) and other operating parameters of suspension point from this corresponding relation. When the RTU is uploading a indicator diagram to the computer device, the computer device can read from the indicator diagram the operating parameters of the pumping unit's stroke, stroke frequency of the pumping unit, maximum load of the suspension point in the upper stroke of the sucker rod, and minimum load of the suspension point in the lower stroke of the sucker rod.

For example, fig. 3 shows a schematic diagram of an indicator diagram, in fig. 3, the horizontal axis represents the displacement of the suspension point, the vertical axis represents the load of the suspension point, pdex represents the maximum load of the suspension point during the upper stroke of the sucker rod, pdex represents the minimum load of the suspension point during the lower stroke of the sucker rod, that is, the load to which the suspension point of the pumping unit is subjected during the lower stroke of the sucker rod. The computer equipment can read that the load of the suspension point of the oil pumping unit when the sucker rod goes down is 44.15KN (kilonewton) from the indicator diagram shown in figure 3.

In another possible way, the load of the suspension point of the pumping unit when the sucker rod goes down can be obtained through steps 2011 to 2012 shown in fig. 4:

step 2011: the computer equipment obtains the gravity of the sucker rod in the liquid in the pumping well, the friction of the sucker rod when the sucker rod goes down and the inertial load of the sucker rod when the sucker rod goes down.

First aspect, computer equipment can acquire the density of sucker rod and the density of liquid in the beam-pumping unit well earlier when acquireing the gravity that the sucker rod received in the liquid in the beam-pumping unit well, then multiplies the density of sucker rod and the difference of the density of liquid in the beam-pumping unit well, the volume of sucker rod to and acceleration of gravity, obtains the gravity that the sucker rod received in the liquid in the beam-pumping unit well.

It should be noted that the density of the sucker rod and the density of the liquid in the pumping well can be stored in the operation construction data report. Therefore, the computer equipment can obtain the density of the sucker rod and the density of liquid in the pumping well from the operation construction data report.

Wherein, the sucker rod generally adopts steel to make, and the density of sucker rod is the density of steel, and of course, the sucker rod also can adopt other materials to make, but no matter what material was adopted to the sucker rod makes, the density of sucker rod all can be the density of the material that the sucker rod adopted.

In addition, the density of the fluid in the pump well may be pre-acquired by a technician. In some embodiments, the technician may determine the density of the fluid in the well by way of a sampling assay in advance. For example, a technician may sample a sample from a pump well, measure the water content and oil content of the sample, multiply the water content of the sample by the density of water to obtain a first product, multiply the oil content of the sample by the density of oil to obtain a second product, sum the first product and the second product to obtain the density of the sample, and determine the density of the sample as the density of the fluid in the pump well. Of course, the density of the liquid in the pumping well can be determined directly to be 1kg/m by the skilled person according to empirical methods³(kilograms per cubic meter).

Illustratively, after the computer device obtains the diameter of the sucker rod and the length of the sucker rod, the computer device may determine the volume of the sucker rod through the diameter of the sucker rod and the length of the sucker rod, and then determine the gravity of the sucker rod in the liquid in the well through the following first formula:

F₁＝V×(ρ₁-ρ₂) X g (first formula)

wherein ,F₁Is the gravity of the sucker rod in the liquid in the pumping well, V is the volume of the sucker rod, rho₁Is the density of the sucker rod, rho₂Is the density of the liquid in the pumping well, and g is the acceleration of gravity.

It is worth noting that when the sucker rod entering the pumping well is formed by combining a plurality of sections of sucker rods with different diameters, the computer equipment can determine the volume of each sucker rod with different diameters through the diameter of the sucker rod and the length of the sucker rod, and then after summing the determined volumes of the sucker rods with different diameters, the gravity of the sucker rod in the liquid in the pumping well can be obtained through the first formula.

In a second aspect, when acquiring the friction force applied to the sucker rod during the downward movement, the computer device may first acquire the friction force between the piston and the pump barrel of the oil well pump in the rod-pumped well, the friction force between the sucker rod and the oil pipe in the rod-pumped well, and the friction force between the sucker rod and the liquid in the oil pipe, and then accumulate the friction force between the piston and the pump barrel of the oil well pump in the rod-pumped well, the friction force between the sucker rod and the oil pipe in the rod-pumped well, and the friction force applied to the sucker rod during the downward movement.

It should be noted that the friction force applied to the sucker rod during the downward movement mainly includes the friction force between the piston and the pump cylinder of the oil well pump, the friction force between the sucker rod and the oil pipe, and the friction force between the sucker rod and the liquid in the oil pipe, so that after the friction force between the piston and the pump cylinder of the oil well pump, the friction force between the sucker rod and the oil pipe, and the friction force between the sucker rod and the liquid in the oil pipe are obtained, the friction force between the piston and the pump cylinder of the oil well pump, the friction force between the sucker rod and the oil pipe, and the friction force between the sucker rod and the liquid in the oil pipe are accumulated, and the friction force applied to the sucker rod during the downward movement can.

The computer equipment can obtain the friction force between the piston and the pump cylinder of the oil well pump in the oil pumping well, the friction force between the sucker rod and the oil pipe in the oil pumping well and the friction force between the sucker rod and the liquid in the oil pipe through the following steps (1) to (4).

And (1) acquiring a gap between a piston and a pump cylinder, the diameter of the piston, the sliding friction coefficient between the sucker rod and an oil pipe, the positive pressure of the sucker rod on the contact point of the oil pipe, the dynamic viscosity of fluid in the oil pipe and the average running speed of the sucker rod by computer equipment.

In an embodiment of the present application, the computer device may display a first parameter input interface in which a technician may input a clearance between the piston and the pump barrel, a diameter of the piston, a coefficient of sliding friction between the sucker rod and the tubing, a positive pressure of the sucker rod at a point of contact with the tubing, a kinematic viscosity of a fluid within the tubing, and an average operating speed of the sucker rod. In this way, the computer device may retrieve these parameters from the first parameter input interface.

The skilled person can determine the clearance between the piston and the pump cylinder through experiments in advance, or can determine any value between 0.07 and 0.17 as the clearance between the piston and the pump cylinder directly through experience. In addition, technicians can measure the diameter of the piston, and determine the sliding friction coefficient between the sucker rod and the oil pipe and the positive pressure of the sucker rod on the contact point of the oil pipe according to tests. The dynamic viscosity of the fluid in the tubing and the average operating speed of the sucker rod can be measured periodically.

And (2) determining the friction force between the piston and the pump cylinder by the computer equipment according to the clearance between the piston and the pump cylinder and the diameter of the piston.

In some embodiments, after obtaining the clearance between the piston and the pump cylinder and the diameter of the piston, the computer device may determine the friction force between the piston and the pump cylinder according to the diameter of the piston and the clearance between the piston and the pump cylinder by the following second formula:

wherein ,F₃Is the friction between the piston and the cylinder, D₂Is the diameter of the piston and δ is the clearance between the piston and the cylinder.

Of course, in practical applications, the computer device may also determine the friction force between the piston and the pump cylinder by other means according to the diameter of the piston and the gap between the piston and the pump cylinder, which is not limited in the embodiment of the present application.

And (3) determining the friction force between the sucker rod and the oil pipe by the computer equipment according to the sliding friction coefficient between the sucker rod and the oil pipe and the positive pressure of the sucker rod on the contact point of the oil pipe.

After the computer device obtains the sliding friction coefficient between the sucker rod and the oil pipe and the positive pressure of the sucker rod on the oil pipe contact point, the positive pressure of the sucker rod on the oil pipe contact point and the sliding friction coefficient between the sucker rod and the oil pipe can be multiplied to obtain the friction force between the sucker rod and the oil pipe.

And (4) determining the friction force between the sucker rod and the liquid in the oil pipe according to the length of the sucker rod, the diameter of the sucker rod, the dynamic viscosity of the fluid in the oil pipe and the average running speed of the sucker rod.

Illustratively, after obtaining the diameter of the sucker rod, the dynamic viscosity of the fluid in the tubing, and the average running speed of the sucker rod, the computer device may determine the friction between the sucker rod and the fluid in the tubing according to the length of the sucker rod, the diameter of the sucker rod, the dynamic viscosity of the fluid in the tubing, and the average running speed of the sucker rod by the following third formula:

wherein ,F₄Is the friction between the sucker rod and the liquid in the oil pipe, D₁Is the diameter of the sucker rod, L is the length of the sucker rod, mu is the dynamic viscosity of fluid in an oil pipe, and v is the average running speed of the sucker rod.

Of course, in practical applications, the computer device may also determine the friction force between the sucker rod and the fluid in the oil pipe in other ways according to the length of the sucker rod, the diameter of the sucker rod, the dynamic viscosity of the fluid in the oil pipe, and the average running speed of the sucker rod, which is not limited in this application.

It is worth noting that when the sucker rod entering the pumping well is formed by combining a plurality of sucker rods with different diameters, the computer device can respectively determine the friction force between each sucker rod with different diameter and the liquid in the oil pipe through the third formula, and then sum the determined friction forces between each sucker rod with different diameter and the liquid in the oil pipe, so as to obtain the friction force between the sucker rod and the liquid in the oil pipe in the pumping well.

In practical application, the computer device not only accumulates the friction between the piston and the pump cylinder of the oil pump in the oil pumping well, the friction between the sucker rod and the oil pipe in the oil pumping well and the friction between the sucker rod and the liquid in the oil pipe, which are obtained through the steps (1) to (4), to obtain the friction received by the sucker rod when the sucker rod goes down, but also can make a difference between the theoretical weight received by the suspension point of the oil pumping unit when the sucker rod goes down in the oil pumping well and the actual weight received by the suspension point of the oil pumping unit when the sucker rod goes down in the oil pumping well, to obtain the friction received by the sucker rod when the sucker rod goes down.

The computer equipment can determine the difference between the gravity of the sucker rod in the liquid in the pumping well and the inertial load of the sucker rod in the descending process as the theoretical weight of the suspension point of the pumping unit in the descending process of the sucker rod in the pumping well. The minimum load of the suspension point in the downward stroke of the sucker rod in the indicator diagram can be determined as the actual weight of the suspension point of the oil pumping unit when the sucker rod in the oil pumping well descends.

In a third aspect, when obtaining the inertial load that the sucker rod receives when descending, the computer equipment can first obtain the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit, and then determine the inertial load that the sucker rod receives when descending according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of the crank in the pumping unit and the length of the connecting rod in the pumping unit.

The computer equipment can read the stroke of the oil pumping unit and the stroke frequency of the oil pumping unit from the acquired indicator diagram, and can also calculate the stroke of the oil pumping unit and the stroke frequency of the oil pumping unit through the load and the displacement of the suspension point sent to the computer equipment by the load sensor and the displacement sensor on the horse head. In addition, the computer device can display a second parameter input interface, a technician can measure the rotating radius of the crank and the length of the connecting rod in advance and input the measured rotating radius of the crank and the measured length of the connecting rod into the second parameter input interface, and accordingly the computer device can acquire the parameters from the second parameter input interface. The first parameter input interface and the second parameter input interface can be located in the same interface or different interfaces.

For example, the computer device may determine the inertial load of the sucker rod when the sucker rod is descending according to the following fourth formula according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit:

wherein ,F₂Is the inertial load on the sucker rod during descending, D₁For the diameter of the rod, L for the length of the rod, p₁The density of the sucker rod, S, the stroke frequency, the rotating radius and the length of the connecting rod.

In practical applications, in order to simplify the calculation for determining the inertial load to which the sucker rod is subjected during the downward movement, the fourth formula is default according to experience

Equal to 3/4, and applying appropriate corrections to the fourth equation above, a fifth equation is obtained,

the computer device can also determine the inertial load to which the sucker rod is subjected when traveling down through the fifth formula described above.

Of course, in practical application, the computer device may determine the inertial load of the sucker rod in the downward direction in other ways according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke frequency of the sucker rod, the rotating radius of a crank in the sucker rod and the length of a connecting rod in the sucker rod, which is not limited in the embodiment of the present application.

It should be noted that when the sucker rod entering the pumping well is formed by combining a plurality of sections of sucker rods with different diameters, the computer device can respectively determine the inertial load of each sucker rod with different diameters when the sucker rod descends through the fourth formula or the fifth formula, and then sum the determined inertial loads of each sucker rod with different diameters when the sucker rod descends, so as to obtain the inertial load of the sucker rod when the sucker rod descends.

Step 2012: and vector summation is carried out on the gravity of the sucker rod in the liquid in the pumping well, the friction force of the sucker rod when the sucker rod goes down and the inertial load of the sucker rod when the sucker rod goes down by the computer equipment, so that the load of the suspension point of the pumping unit when the sucker rod goes down is obtained.

It should be noted that the load of the pumping unit suspension point when the sucker rod goes down is mainly affected by the gravity of the sucker rod in the liquid in the pumping well, the friction of the sucker rod when going down and the inertial load of the sucker rod when going down, so after determining the gravity of the sucker rod in the liquid in the pumping well, the friction of the sucker rod when going down and the inertial load of the sucker rod when going down through the above steps, the gravity of the sucker rod in the liquid in the pumping well, the friction of the sucker rod when going down and the inertial load of the sucker rod when going down are summed up by vectors, and the load of the pumping unit suspension point when going down the sucker rod can be obtained.

The gravity direction of the sucker rod in the liquid in the pumping well is the same as the descending direction of the sucker rod, and the directions of the friction force of the sucker rod in the descending direction and the inertial load of the sucker rod in the descending direction are opposite to the descending direction of the sucker rod, so that the gravity of the sucker rod in the liquid in the pumping well and the inertial load of the sucker rod in the descending direction can be differentiated, and the load of the suspension point of the pumping unit in the descending direction of the sucker rod can be obtained.

After the load applied to the suspension point of the pumping unit when the sucker rod goes down is obtained in any one of the two manners, the amount of elastic deformation generated when the sucker rod goes down to the bottom dead center can be determined in step 202.

It should be noted that, the order of obtaining the load that the pumping unit suspension point receives when the sucker rod goes down in the pumping unit well may be adjusted, for example, when step 2011 is executed, the computer device may obtain the gravity that the sucker rod receives in the liquid in the pumping unit well first, then obtain the friction that the sucker rod receives when going down, finally obtain the inertial load that the sucker rod receives when going down, also may obtain the gravity that the sucker rod receives in the liquid in the pumping unit well first, then obtain the inertial load that the sucker rod receives when going down, finally obtain the friction that the sucker rod receives when going down, and the like.

Step 202: and the computer equipment determines the elastic deformation quantity generated when the sucker rod descends to the bottom dead center according to the load of the suspension point of the sucker rod when the sucker rod descends, the length of the sucker rod, the elastic modulus of the sucker rod and the diameter of the sucker rod.

Illustratively, the implementation process of step 202 may be: according to the load that the sucker rod received, the length of sucker rod, the elastic modulus of sucker rod and the diameter of sucker rod when the sucker rod suspended point goes down, the elastic deformation volume that produces when the sucker rod goes down to bottom dead center is confirmed through following sixth formula:

h is the elastic deformation generated when the sucker rod goes down to the bottom dead center, F is the load of the suspension point of the pumping unit when the sucker rod goes down, L is the length of the sucker rod, and E is the pumping unitModulus of elasticity of oil stick, D₁The diameter of the sucker rod.

Of course, in practical application, the amount of elastic deformation generated when the sucker rod goes down to the bottom dead center can be determined in other ways according to the load of the suspension point of the oil pumping unit when the sucker rod goes down, the length of the sucker rod, the elastic modulus of the sucker rod and the diameter of the sucker rod, which is not limited in the embodiment of the present application.

It should be noted that when the sucker rod entering the pumping well is formed by combining a plurality of sections of sucker rods with different diameters, the computer device can respectively determine the elastic deformation amount generated when each sucker rod with different diameters descends to the bottom dead center through the sixth formula, and then sum the determined elastic deformation amounts generated when each sucker rod with different diameters descends to the bottom dead center, so as to obtain the elastic deformation amount generated when the sucker rod descends to the bottom dead center.

Step 203: the computer equipment determines the anti-impact distance of the pumping well according to the elastic deformation generated when the pumping rod goes down to the bottom dead center.

Because the sucker rod can lead to the oil-well pump piston that the sucker rod connects down to the bottom dead center and when the sucker rod takes place elastic deformation (generally the sucker rod is elongated), produce the risk that touches the fixed valve that is located the oil-well pump bottom, consequently, can confirm rod-pumped well anti-shock distance according to the elastic deformation volume that the sucker rod produced when down to the bottom dead center.

In some embodiments, the computer device may determine the amount of elastic deformation generated when the sucker rod descends to the bottom dead center as the bump distance of the rod-pumped well directly after determining the amount of elastic deformation generated when the sucker rod descends to the bottom dead center.

In other embodiments, the computer device can also add the elastic deformation generated when the sucker rod descends to the bottom dead center to a preset increment to obtain the impact prevention distance of the oil pumping well.

It should be noted that the computer device may store a preset increment in advance, for example, the preset increment may be 0.1 meter. Thus, after the computer equipment determines the elastic deformation quantity generated when the sucker rod descends to the bottom dead center, the elastic deformation quantity generated when the sucker rod descends to the bottom dead center can be added with the preset increment to obtain the impact prevention distance of the pumping well.

Further, the computer device may be pre-stored with the first bump stopper (i.e., the bump stopper of the related art, which is estimated empirically). After determining the bump distance of the pumping well through the steps, the computer equipment can also store the bump distance of a second pumping well (namely, after acquiring the load of the suspension point of the pumping well when the pumping rod goes down through the indicator diagram in the embodiment of the application, the determined bump distance of the pumping well) and the bump distance of a third pumping well (namely, after acquiring the load of the suspension point of the pumping well when the pumping rod goes down, the gravity of the pumping rod in the liquid in the pumping well, the friction force of the pumping rod when going down and the inertial load of the pumping rod when going down are subjected to vector summation in the embodiment of the application, and the determined bump distance of the pumping well is obtained after the load of the suspension point of the pumping well when going down is received. The computer equipment can compare the impact-preventing distance of the first pumping well, the impact-preventing distance of the second pumping well and the impact-preventing distance of the third pumping well so as to evaluate the determined impact-preventing distance of the pumping wells.

For example, the computer device may sort the first rod-pumped well bump-preventing distance, the second rod-pumped well bump-preventing distance, and the third rod-pumped well bump-preventing distance in order from small to large, evaluate the first one of the ranks as good, evaluate the middle one of the ranks as good, and evaluate the last one of the ranks as good.

Furthermore, the computer equipment can also determine the target pumping well anti-impact distance from the first pumping well anti-impact distance, the second pumping well anti-impact distance and the third pumping well anti-impact distance so as to adjust the position of the sucker rod in the pumping well according to the target pumping well anti-impact distance. For example, the computer device can determine the optimal one of the first rod-pumped well anti-impact distance, the second rod-pumped well anti-impact distance and the third rod-pumped well anti-impact distance as the target rod-pumped well anti-impact distance, so that the oil well pump can be ensured to have higher pumping efficiency while the piston is prevented from descending to touch a fixed valve. After the computer determines the target rod-pumped well standoff, the position of the sucker rod in the rod-pumped well can be adjusted, as shown in step 204.

Step 204: the computer equipment adjusts the position of the sucker rod in the rod-pumped well according to the anti-impact distance of the rod-pumped well.

In some embodiments, an automatic anti-impact distance adjusting mechanism can be connected to the sucker rod, and the automatic anti-impact distance adjusting mechanism can be connected with computer equipment through a driver. Therefore, the computer equipment can send an adjusting signal to the driver, the adjusting signal can carry the anti-impact distance of the pumping well, and the driver can drive the anti-impact distance automatic adjusting mechanism to adjust the position of the sucker rod in the pumping well after receiving the adjusting signal sent by the computer equipment.

In other embodiments, the sucker rod may be connected with an automatic anti-impact distance adjusting mechanism, a driver may be built in the automatic anti-impact distance adjusting mechanism, and the automatic anti-impact distance adjusting mechanism may be directly connected with a computer device. Like this, computer equipment can directly send the regulation signal to scour protection apart from automatic regulating mechanism, and can carry rod-pumped well scour protection apart from in this regulation signal, scour protection apart from automatic regulating mechanism can adjust the position of sucker rod in rod-pumped well after receiving the regulation signal that computer equipment sent.

When the anti-impact distance automatic adjusting mechanism adjusts the position of the sucker rod in the rod-pumped well, the sucker rod can be adjusted up to the corresponding distance of the anti-impact distance of the rod-pumped well according to the anti-impact distance of the rod-pumped well carried in the adjusting signal.

Illustratively, when the determined impact distance of the pumping well is 1.2m, the automatic impact distance adjusting mechanism can adjust the position of the sucker rod in the pumping well by 1.2 m.

FIG. 5 is a schematic structural diagram of a device for adjusting the position of a sucker rod according to an embodiment of the present disclosure. Referring to fig. 5, the apparatus includes: an acquisition module 501, a first determination module 502, a second determination module 503, and an adjustment module 504.

The obtaining module 501 is configured to obtain a load on a suspension point of the pumping unit when the pumping unit goes down in the pumping unit well, a length of the pumping unit, an elastic modulus of the pumping unit, and a diameter of the pumping unit.

The first determining module 502 is configured to determine an elastic deformation amount generated when the sucker rod goes down to a bottom dead center according to a load applied to a suspension point of the sucker rod when the sucker rod goes down, a length of the sucker rod, an elastic modulus of the sucker rod, and a diameter of the sucker rod.

And a second determining module 503, configured to determine the bump-preventing distance of the rod-pumped well according to the amount of elastic deformation generated when the sucker rod moves down to the bottom dead center.

And an adjusting module 504 for adjusting the position of the sucker rod in the rod-pumped well according to the bump protection distance of the rod-pumped well.

Optionally, the obtaining module 501 includes:

and the first calculation submodule is used for carrying out vector summation on the gravity of the sucker rod in the liquid in the pumping well, the friction of the sucker rod in the descending process and the inertial load of the sucker rod in the descending process to obtain the load of the suspension point of the pumping unit in the descending process of the sucker rod.

Optionally, the first obtaining sub-module includes:

Optionally, the first obtaining sub-module further includes:

Optionally, the second obtaining unit is configured to:

acquiring a gap between a piston and a pump cylinder, the diameter of the piston, the sliding friction coefficient between a sucker rod and an oil pipe, the positive pressure of the sucker rod on the contact point of the oil pipe, the dynamic viscosity of fluid in the oil pipe and the average running speed of the sucker rod;

Optionally, the first obtaining sub-module further includes:

the first determining unit is used for determining the inertial load of the sucker rod during descending according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit.

Optionally, the first determining unit is configured to:

according to the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke frequency of the pumping unit, the rotating radius of a crank in the pumping unit and the length of a connecting rod in the pumping unit, the inertial load of the sucker rod when the sucker rod descends is determined through the following formula:

Optionally, the obtaining module 501 includes:

the second acquisition submodule is used for acquiring a corresponding indicator diagram when an oil well pump in the oil pumping well works;

and the first reading submodule is used for reading the load of the suspension point of the pumping unit when the pumping rod goes down from the indicator diagram.

Optionally, the first determining module 502 is configured to:

according to the load that the sucker rod received, the length of sucker rod, the elastic modulus of sucker rod and the diameter of sucker rod when the sucker rod suspended point was down, the elastic deformation volume that produces when the sucker rod was down to bottom dead center is confirmed through following formula:

h is the elastic deformation quantity generated when the sucker rod goes down to the bottom dead center, F is the load of the suspension point of the pumping unit when the sucker rod goes down, L is the length of the sucker rod, E is the elastic modulus of the sucker rod, and D₁The diameter of the sucker rod.

Optionally, the second determining module 503 includes:

and the second calculation submodule is used for adding the elastic deformation generated when the sucker rod descends to the bottom dead center with the preset increment to obtain the impact prevention distance of the pumping well.

It should be noted that: the position adjusting device for the sucker rod provided by the embodiment is only exemplified by the division of the functional modules when determining the impact resistance of the rod pumped well, and in practical application, the function distribution can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules so as to complete all or part of the functions described above. In addition, the position adjusting device of the sucker rod and the position adjusting method embodiment of the sucker rod provided by the above embodiments belong to the same concept, and the specific implementation process is detailed in the method embodiment and is not described herein again.

FIG. 6 is a schematic structural diagram of a device for adjusting the position of a sucker rod according to an embodiment of the present application. Referring to fig. 6, the apparatus may be a terminal 600, and the terminal 600 may be: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. The terminal 600 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc.

In general, the terminal 600 includes: a processor 601 and a memory 602.

The processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 601 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 601 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, processor 601 may also include an AI (Artificial Intelligence) processor for processing computational operations related to machine learning.

The memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in the memory 602 is used to store at least one instruction for execution by the processor 601 to implement the method of adjusting the position of a sucker rod provided by the method embodiments herein.

In some embodiments, the terminal 600 may further optionally include: a peripheral interface 603 and at least one peripheral. The processor 601, memory 602, and peripheral interface 603 may be connected by buses or signal lines. Various peripheral devices may be connected to the peripheral interface 603 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 604, a touch screen display 605, a camera 606, an audio circuit 607, a positioning component 608, and a power supply 609.

The peripheral interface 603 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 601 and the memory 602. In some embodiments, the processor 601, memory 602, and peripheral interface 603 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 601, the memory 602, and the peripheral interface 603 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The Radio Frequency circuit 604 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 604 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 604 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 604 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 604 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 604 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display 605 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 605 is a touch display screen, the display screen 605 also has the ability to capture touch signals on or over the surface of the display screen 605. The touch signal may be input to the processor 601 as a control signal for processing. At this point, the display 605 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 605 may be one, providing the front panel of the terminal 600; in other embodiments, the display 605 may be at least two, respectively disposed on different surfaces of the terminal 600 or in a folded design; in still other embodiments, the display 605 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 600. Even more, the display 605 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display 605 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.

The camera assembly 606 is used to capture images or video. Optionally, camera assembly 606 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 606 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.

Audio circuitry 607 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 601 for processing or inputting the electric signals to the radio frequency circuit 604 to realize voice communication. For the purpose of stereo sound collection or noise reduction, a plurality of microphones may be provided at different portions of the terminal 600. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 601 or the radio frequency circuit 604 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 607 may also include a headphone jack.

The positioning component 608 is used for positioning the current geographic Location of the terminal 600 to implement navigation or LBS (Location Based Service). The Positioning component 608 can be a Positioning component based on the united states GPS (Global Positioning System), the chinese beidou System, the russian graves System, or the european union's galileo System.

Power supply 609 is used to provide power to the various components in terminal 600. The power supply 609 may be ac, dc, disposable or rechargeable. When the power supply 609 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, the terminal 600 also includes one or more sensors 610. The one or more sensors 610 include, but are not limited to: acceleration sensor 611, gyro sensor 612, pressure sensor 613, fingerprint sensor 614, optical sensor 615, and proximity sensor 616.

The acceleration sensor 611 may detect the magnitude of acceleration in three coordinate axes of the coordinate system established with the terminal 600. For example, the acceleration sensor 611 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 601 may control the touch screen display 605 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 611. The acceleration sensor 611 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 612 may detect a body direction and a rotation angle of the terminal 600, and the gyro sensor 612 and the acceleration sensor 611 may cooperate to acquire a 3D motion of the user on the terminal 600. The processor 601 may implement the following functions according to the data collected by the gyro sensor 612: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

The pressure sensor 613 may be disposed on a side frame of the terminal 600 and/or on a lower layer of the touch display screen 605. When the pressure sensor 613 is disposed on the side frame of the terminal 600, a user's holding signal of the terminal 600 can be detected, and the processor 601 performs left-right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 613. When the pressure sensor 613 is disposed at the lower layer of the touch display screen 605, the processor 601 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 605. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor 614 is used for collecting a fingerprint of a user, and the processor 601 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 614, or the fingerprint sensor 614 identifies the identity of the user according to the collected fingerprint. Upon identifying that the user's identity is a trusted identity, the processor 601 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings, etc. The fingerprint sensor 614 may be disposed on the front, back, or side of the terminal 600. When a physical button or vendor Logo is provided on the terminal 600, the fingerprint sensor 614 may be integrated with the physical button or vendor Logo.

The optical sensor 615 is used to collect the ambient light intensity. In one embodiment, processor 601 may control the display brightness of touch display 605 based on the ambient light intensity collected by optical sensor 615. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 605 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 605 is turned down. In another embodiment, the processor 601 may also dynamically adjust the shooting parameters of the camera assembly 606 according to the ambient light intensity collected by the optical sensor 615.

A proximity sensor 616, also known as a distance sensor, is typically disposed on the front panel of the terminal 600. The proximity sensor 616 is used to collect the distance between the user and the front surface of the terminal 600. In one embodiment, when the proximity sensor 616 detects that the distance between the user and the front surface of the terminal 600 gradually decreases, the processor 601 controls the touch display 605 to switch from the bright screen state to the dark screen state; when the proximity sensor 616 detects that the distance between the user and the front surface of the terminal 600 gradually becomes larger, the processor 601 controls the touch display 605 to switch from the breath screen state to the bright screen state.

Those skilled in the art will appreciate that the configuration shown in fig. 6 is not intended to be limiting of terminal 600 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method of adjusting the position of a sucker rod, the method comprising:

2. The method of claim 1, wherein said obtaining a load experienced by a pump hanger as a sucker rod descends in a rod pumped well comprises:

3. The method of claim 2, wherein said capturing the gravitational force experienced by said sucker rod in the fluid in said well comprises:

4. The method of claim 2, wherein said obtaining friction experienced by said sucker rod as it descends comprises:

5. The method of claim 4, wherein obtaining friction between a piston and a pump barrel of a pump in the rod well, friction between the sucker rod and tubing in the rod well, and friction between the sucker rod and fluid in the tubing comprises:

6. The method of claim 2, wherein said obtaining an inertial load to which said sucker rod is subjected while traveling down comprises:

7. The method of claim 6, wherein said determining the inertial load to which the sucker rod is subjected during descent based on the length of the sucker rod, the diameter of the sucker rod, the density of the sucker rod, the stroke of the pumping unit, the stroke count of the pumping unit, the radius of rotation of a crank in the pumping unit, and the length of a link in the pumping unit comprises:

wherein, F is₂Is the inertial load to which the sucker rod is subjected during descending, D₁Is the diameter of the sucker rod, L is the length of the sucker rod, p₁Is the density of the sucker rod, S is the stroke of the pumping unitN is the stroke frequency of the oil pumping unit, r is the rotating radius of the crank, and I is the length of the connecting rod.

8. The method of claim 1, wherein said obtaining a load experienced by a pump hanger as a sucker rod descends in a rod pumped well comprises:

9. The method of any of claims 1-8, wherein said determining the amount of elastic deformation of said sucker rod as it descends to bottom dead center based on the load to which said rod hanger is subjected as said rod descends, the length of said rod, the modulus of elasticity of said rod, and the diameter of said rod comprises:

10. The method of any of claims 1-8, wherein determining the rod-pumped well head from the amount of elastic deformation produced when the rod goes down to bottom dead center comprises:

11. A position adjustment device for a sucker rod, the device comprising:

12. A computer readable storage medium having stored thereon instructions which, when executed by a processor, carry out the steps of the method of adjusting the position of a sucker rod of any one of claims 1 to 10.