CN108729892B - Flow meter for measuring and adjusting oil field injection well - Google Patents
Flow meter for measuring and adjusting oil field injection well Download PDFInfo
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- CN108729892B CN108729892B CN201810500151.1A CN201810500151A CN108729892B CN 108729892 B CN108729892 B CN 108729892B CN 201810500151 A CN201810500151 A CN 201810500151A CN 108729892 B CN108729892 B CN 108729892B
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- rod body
- blanking plug
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
The invention discloses a flowmeter for measuring and adjusting the oil field injection well edge, which comprises an electromagnetic flowmeter and a vertically arranged support rod body, wherein the electromagnetic flowmeter is coaxially connected to the upper end of the support rod body, the outer wall of the support rod body is connected with an auxiliary arm clamped on the plane of the top of a water distributor and a mechanical arm for grabbing an adjustable blanking plug, the auxiliary arm and the mechanical arm are respectively and symmetrically arranged on two sides of the support rod body, the electromagnetic flowmeter is always positioned above the auxiliary arm, and the free end of the mechanical arm can lift the adjustable blanking plug to move up and down to realize the adjustment of the flow of the adjustable blanking plug. According to the flow meter capable of measuring and adjusting the range of the blanking plug, the electromagnetic flow meter and the mechanical arm capable of adjusting the range of the blanking plug are combined together, so that the water injection quantity can be adjusted while the flow is measured, the measurement and the adjustment of the water injection quantity are realized, the operation is simple and convenient, and the measurement precision of the flow meter is greatly improved.
Description
Technical Field
The invention relates to a flowmeter, in particular to a flowmeter for measuring and adjusting an oil field injection well.
Background
When a medium is injected into an oil well in the traditional oil field operation, the plug with different measuring ranges is put into the well for injecting water into the stratum, and then the flow of each different plug is measured by using a flow meter, so that the flow of the water injected into the stratum can be finally registered, the problem of repeated putting of the plug is caused by the fact that the plug cannot be adjusted, and the problems of labor waste, time waste and labor waste are caused. Meanwhile, due to the different characteristics of water injection of a main oil displacement medium, polymer injection and the terpolymer, the construction difficulty is increased, wherein the electromagnetic flowmeter is the only flowmeter which can be used for measuring water, the polymer and the terpolymer at the same time at present. However, the existing electromagnetic flowmeter only can play a role of measuring the flow rate of the liquid flow and has a single function.
Disclosure of Invention
The invention aims to solve the technical problems that the existing electromagnetic flowmeter only can play a role in measuring the flow rate of liquid flow, has single function, and aims to provide the flowmeter for measuring and adjusting the range of an oil field injection well.
The invention is realized by the following technical scheme:
a flowmeter for measuring and adjusting the oil field injection well edge comprises an electromagnetic flowmeter and a vertically arranged support rod body, wherein the electromagnetic flowmeter is coaxially connected to the upper end of the support rod body, the outer wall of the support rod body is connected with an auxiliary arm clamped on the top plane of a water distributor and a mechanical arm for grabbing an adjustable blanking plug, the auxiliary arm and the mechanical arm are respectively and symmetrically arranged on two sides of the support rod body, the electromagnetic flowmeter is always positioned above the auxiliary arm, and one end of the mechanical arm and one end of the auxiliary arm are both hinged with the outer wall of the support rod body; the one end of keeping away from the hinged end on arm and the auxiliary arm is the free end, and the free end of arm and the free end of auxiliary arm homoenergetic can be around self hinged end from with support body of rod outer wall laminating department to keeping away from the direction back and forth movement of the outer wall of the support body of rod, and the free end of arm can realize the regulation to adjustable blanking plug flow through the position of the adjustable blanking plug inner core of control this moment.
According to the flow meter capable of measuring and adjusting the range of the blanking plug, the electromagnetic flow meter and the mechanical arm capable of adjusting the range of the blanking plug are combined together, so that the water injection quantity can be adjusted while the flow is measured, the measurement and the adjustment of the water injection quantity are realized, the operation is simple and convenient, and the measurement precision of the flow meter is greatly improved. The electromagnetic flowmeter is combined with a machine capable of adjusting the adjustable blanking plug, and the electromagnetic flowmeter is coaxially arranged at the upper end of the machine capable of adjusting the adjustable blanking plug, so that the flowmeter can adjust the blanking plug in real time while measuring. The flowmeter is used, firstly, the flowmeter is placed in an oil pipe to be placed downwards, the lower end of a support rod body firstly enters a working pipeline of a water distributor, an adjustable blanking plug is arranged on the inner wall of the working pipeline of the water distributor, the position of the flowmeter is adjusted, so that a mechanical arm is right opposite to the direction of the adjustable blanking plug, the flowmeter is continuously placed downwards, an auxiliary arm is driven by a driving mechanism to move and open in the direction far away from the support rod body, then the auxiliary arm is clamped at the end face of a water inlet of the working pipeline of the water distributor, the height position of the mechanical arm is right opposite to the adjustable blanking plug, then the mechanical arm is controlled to rotate in the direction far away from the support rod body, and the head of the adjustable blanking plug is grabbed by the end part of the mechanical; during operation, after the electromagnetic flowmeter reads the current injection amount, the inner core of the adjustable blanking plug is driven to rotate through the inner rotating mechanism in the mechanical arm, so that the water nozzle in the adjustable blanking plug is controlled to move up and down, the size of the water outlet hole of the adjustable blanking plug is controlled, the water passing amount is adjusted, and the flow injected into a stratum is controlled. The flow meter is used for measuring and feeding back data, the mechanical arm which grasps the adjustable plug is controlled to move so as to adjust the adjustable plug, the purpose of measuring and adjusting at the same time is achieved, the adjustment is continuously carried out until the accurate stratum injection amount is achieved, the complex and time-consuming operation of repeatedly lifting the well is avoided, and the operation can be finished only by ground control; the invention is characterized in that the mechanical structure for adjusting the flow of the adjustable blanking plug is combined with an electromagnetic flowmeter, according to the existing working position relation between the mechanical arm and the auxiliary arm in the existing mechanical structure for flow regulation of the adjustable blanking plug, namely, when the height positions of the mechanical arm and the blanking plug are level, the auxiliary arm is just clamped on the end surface of the water inlet of the working pipeline of the water distributor, thereby creatively combining the mechanical structure with the electromagnetic flowmeter, arranging the electromagnetic flowmeter at the upper end of the mechanical structure, when the flow of the blanking plug is regulated by the mechanical structure, the electromagnetic flowmeter can be always positioned above the end surface of the water inlet of the working pipeline of the water distributor, and the influence of liquid flow disturbance on measured data is avoided. The invention does not simply superpose and connect the electromagnetic flowmeter and the mechanical structure for flow regulation of the adjustable blanking plug, but makes an inventive connection on the basis, because the electromagnetic flowmeter is necessarily positioned in the working pipeline of the water distributor when in work if the electromagnetic flowmeter is connected at other parts of the mechanical structure, although the function of measuring the modulation at the same time is also provided, the electromagnetic flowmeter is necessarily disturbed by the liquid flow, therefore, the invention creatively combines the electromagnetic flowmeter and the mechanical structure for flow regulation of the adjustable blanking plug, not only has the functions of the electromagnetic flowmeter and the mechanical structure, but also achieves unexpected technical effects, the influence of disturbance caused when the flow area and the shape of the electromagnetic flowmeter are changed when the flow enters the inlet of the working pipeline of the water distributor from the oil pipe is avoided, and the measurement precision is greatly improved.
Even there is the cable head of taking the clamp structure in electromagnetic flowmeter's upper end, the clamp structure of cable head can be used for pressing from both sides tight cable, still even there is the guide arm on the support body of rod outer wall, the guide arm sets up the homonymy and the guide arm that support the body of rod with the arm is located the arm under, the arm, guide arm and auxiliary arm all are in the coplanar, the one end and the support body of rod outer wall of guide arm and auxiliary arm are articulated, guide arm and auxiliary arm homoenergetic are from the orientation rotation to keeping away from the support body of rod outer wall with support body of rod outer wall laminating department around self hinged end, be furnished with the centralizer on the cable head.
The invention is also provided with the guide arm, so that the stability of the flowmeter in the working process can be improved. In the water distributor working pipeline, an adjustable blanking plug is arranged at the upper end of the water distributor working pipeline, a vertical guide groove is arranged at the lower end of the working pipeline, and the guide groove is positioned right below the adjustable blanking plug; when the flowmeter is used for descending a well, firstly, after a cable head clamps a cable by using a self clamping structure, a flowmeter instrument is put into an oil pipe by putting the cable down, and the cable head is provided with a centralizer, so that the whole flowmeter can be positioned at the center of the oil pipe all the time when the flowmeter is descended to a position where a guide arm enters a water distributor working pipeline and a mechanical arm and an auxiliary arm do not enter the water distributor working pipeline, the guide arm, the auxiliary arm and the mechanical arm are opened, wherein the opening means that the guide arm, the auxiliary arm and the mechanical arm rotate by a certain angle from a position attached to a support rod body to a direction far away from the support rod body, and an opened state is presented; the rotary flow meter makes the guide arm turn to the direction at guide way place, then continue to transfer the flowmeter, make the guide arm insert in the guide way, make the arm on the flowmeter adjust the direction at adjustable blanking plug place all the time like this, continue to transfer the flowmeter and make the auxiliary arm blocked by water injection mandrel working pipeline water inlet section, make the flowmeter can't transfer again, thereby fix a position the high position of electromagnetic flow meter, can guarantee that it is in water injection mandrel working pipeline water inlet section top all the time, the arm just in time can grasp adjustable blanking plug this moment. By the structure, the flowmeter can be completely positioned in three directions, namely the middle positioning of a cable head, the height positioning of the auxiliary arm, the guiding of the guide arm and the anti-rotation stable positioning, so that the accurate measurement of the flowmeter is ensured; the centralizer on the cable head can enable the flowmeter to be always positioned at the central position of the oil pipe, so that liquid flow flowing through the periphery of the instrument can be measured to the maximum extent, and the measurement accuracy is improved; the guide arm is inserted into the guide groove, so that the direction guide of the mechanical arm is realized when the flowmeter is lowered, and the flowmeter can be prevented from rotating in the radial direction under the action of liquid flow; the auxiliary arm is positioned on the upper end face of the working pipeline, so that the electromagnetic flowmeter is always positioned in the oil pipe above the water inlet section of the working pipeline of the water distributor, the injection quantity of the oil pipe can be measured as accurately as possible by the electromagnetic flowmeter, and the measurement error caused by disturbance when liquid flow enters the working pipeline of the water distributor from the oil pipe and the overflowing area and the shape of the liquid flow are changed is prevented. Wherein, the parameters of the distance between the guide arm and the auxiliary arm and the mechanical arm can be set according to the distance between the guide groove and the adjustable blanking plug in the working pipeline of the water distributor and the distance between the upper end surface of the working pipeline of the water distributor. The guide arm, the mechanical arm and the auxiliary arm are not opened in the process that the flowmeter is started to be lowered, so that the guide arm, the mechanical arm and the auxiliary arm are prevented from being clamped in the oil pipe and are difficult to continue to be lowered.
The free tip of arm even has two parallel arrangement's plectrum, and interval and adjustable blanking plug head thickness phase-match between two plectrums through the certain clearance that forms between two plectrums for adjustable blanking plug head inserts between two plectrums, makes the arm more firm to snatching of adjustable blanking plug.
Still including setting up the internal drive structure through program control at the bracing piece, drive structure and arm, the hinged end of auxiliary arm links to each other, drive structure can control the arm and the auxiliary arm rotates simultaneously, one set of drive structure through program control, can read automatic according to program control arm after the current injection volume at the electromagnetic flowmeter, adjust adjustable blanking plug, the flow that the control was poured into the stratum, it is more intelligent convenient to use, it judges the arm again and adjusts to need not the manual work to carry out the flow. The program may be an existing control program, and any program capable of controlling the mechanical arm to perform corresponding movement according to the received flow meter feedback data may be applied to the present invention.
The support rod body is provided with a telescopic structure, the length of the support rod body is adjustable, and the distance between the guide arm and the auxiliary arm and the mechanical arm can be changed by adjusting the length of the support rod body, so that the support rod can be applied to various guide grooves, adjustable stoppers and working pipelines of the water distributor, wherein the distance parameters between the guide grooves and the adjustable stoppers and between the guide grooves and the upper end surface of the working pipeline of the water distributor are different.
Even there is the check lock lever on the free end of guiding arm, and the check lock lever tip stretches into the support rod body inside and links to each other with locking mechanism, and locking mechanism can drive the check lock lever and stretch out or withdraw the bracing piece internally for the guiding arm can be convenient outwards open or inwards withdraw.
In the above, the driving mechanism and the locking mechanism capable of controlling the opening or the retraction of the auxiliary arm, the mechanical arm and the guide arm are all implemented by adopting the existing mechanical structure, so how to implement the opening or the retraction of the auxiliary arm, the mechanical arm and the guide arm by the driving mechanism and the locking mechanism is not explained in the invention.
A system for measuring and adjusting the injection well flow at the same time comprises a flow meter, an oil pipe and a water distributor arranged in the oil pipe, wherein an adjustable blanking plug is arranged on the inner wall of a working pipeline of the water distributor, a support rod body of the flow meter is vertically arranged in the working pipeline of the water distributor, a mechanical arm of the flow meter is connected with the upper end of the blanking plug, an electromagnetic flow meter of the flow meter is arranged in the oil pipe above the upper end surface of the water distributor, the system also comprises a driving program and a driving structure which is arranged in the support rod body and is controlled by the program, the driving program is connected with the electromagnetic flow meter and the driving structure, the driving structure is connected with the mechanical arm and a hinged end of an auxiliary arm, the driving structure can control the mechanical arm and, the driving program can automatically drive the driving structure to control the mechanical arm and the auxiliary arm after the electromagnetic flowmeter reads the current injection amount, and the adjustable blanking plug is adjusted.
A method for measuring and adjusting the injection well flow rate at the same time comprises the following steps of 1) putting a flowmeter into an oil pipe, enabling a support rod body to enter a water distributor, enabling a mechanical arm to be connected with the upper end of an adjustable blanking plug, enabling an auxiliary arm to be positioned on the upper end face of the water distributor, and enabling an electromagnetic flowmeter to be positioned in the oil pipe above the upper end face of the water distributor; and 2) after the electromagnetic flowmeter measures the flow of the liquid flow flowing into the water distributor, the electromagnetic flowmeter transmits a signal to a driving program, the driving program analyzes the flow, and then the driving structure is controlled to drive the mechanical arm to rotate so as to drive the adjustable blanking plug to lift or put down, so that the flow adjustment is realized.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the flowmeter for measuring and adjusting the injection well in the oil field is provided with the mechanical arm capable of adjusting the range of the adjustable stopper on the basis of the electromagnetic flowmeter, so that the flowmeter not only can adapt to the measurement of water, polymers and terpolymers, but also can adjust the water quantity during the measurement, realizes the measurement and adjustment of the injection water quantity, and is simple and convenient to operate;
2. the flowmeter for measuring and adjusting the oil field injection well at the same time can completely position the flowmeter in three directions, namely the middle positioning of a cable head, the height positioning of an auxiliary arm, the guiding of a guide arm and the stable positioning of rotation prevention, so that the measurement accuracy is improved;
3. the flowmeter for measuring and adjusting the oil field injection well at the same time can automatically control the mechanical arm according to a program after the electromagnetic flowmeter reads the current injection amount, adjust the adjustable blanking plug and control the flow of the injection stratum through a set of drive structure controlled by the program, is more intelligent and convenient to use, and does not need manual flow judgment and then controls the mechanical arm to adjust.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-supporting rod body, 2-electromagnetic flowmeter, 3-cable head, 4-mechanical arm, 5-guide arm, 6-auxiliary arm, 7-oil pipe, 8-water distributor and 9-adjustable blanking plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1, the flowmeter for measuring and adjusting the oil field injection well edge comprises an electromagnetic flowmeter 2 and is characterized by further comprising a vertically arranged support rod body 1, wherein the electromagnetic flowmeter 2 is coaxially connected to the upper end of the support rod body 1, an auxiliary arm 6 used for being clamped on a water inlet plane at the top of a water distributor and a mechanical arm 4 used for grabbing an adjustable blanking plug are connected to the outer wall of the support rod body 1, the auxiliary arm 6 and the mechanical arm 4 are respectively and symmetrically arranged on two sides of the support rod body 1, the electromagnetic flowmeter 2 is always positioned above the auxiliary arm 6, and one end of each of the mechanical arm 4 and the auxiliary arm 6 is hinged to the outer wall of the support rod body 1; the one end of keeping away from the hinged end on arm 4 and the auxiliary arm 6 is the free end, and the free end of arm 4 and the free end of auxiliary arm 6 homoenergetic can be around self hinged end from with the laminating department of the 1 outer wall of the support body of rod to keeping away from the direction back and forth movement of the 1 outer wall of the support body of rod, and the free end of arm 4 can realize the regulation to adjustable blanking plug flow through the position of the adjustable blanking plug inner core of control this moment.
According to the flow meter capable of measuring and adjusting the range of the blanking plug, the electromagnetic flow meter and the mechanical arm capable of adjusting the range of the blanking plug are combined together, so that the water injection quantity can be adjusted while the flow is measured, the measurement and the adjustment of the water injection quantity are realized, the operation is simple and convenient, and the measurement precision of the flow meter is greatly improved. The electromagnetic flowmeter is combined with a machine capable of adjusting the adjustable blanking plug, and the electromagnetic flowmeter is coaxially arranged at the upper end of the machine capable of adjusting the adjustable blanking plug, so that the flowmeter can adjust the blanking plug in real time while measuring. The flowmeter is used, firstly, the flowmeter is placed in an oil pipe to be placed downwards, the lower end of a support rod body firstly enters a working pipeline of a water distributor, an adjustable blanking plug is arranged on the inner wall of the working pipeline of the water distributor, the position of the flowmeter is adjusted, so that a mechanical arm is right opposite to the direction of the adjustable blanking plug, the flowmeter is continuously placed downwards, an auxiliary arm is driven by a driving mechanism to move and open in the direction far away from the support rod body, then the auxiliary arm is clamped at the end face of a water inlet of the working pipeline of the water distributor, the height position of the mechanical arm is right opposite to the adjustable blanking plug, then the mechanical arm is controlled to rotate in the direction far away from the support rod body, and the head of the adjustable blanking plug is grabbed by the end part of the mechanical; during operation, after the electromagnetic flowmeter reads the current injection amount, the inner core of the adjustable blanking plug is driven to rotate through the inner rotating mechanism in the mechanical arm, so that the water nozzle in the adjustable blanking plug is controlled to move up and down, the size of the water outlet hole of the adjustable blanking plug is controlled, the water passing amount is adjusted, and the flow injected into a stratum is controlled. The flow meter is used for measuring and feeding back data, the mechanical arm which grasps the adjustable blanking plug is controlled to move so as to adjust the adjustable blanking plug, the purpose of measuring and adjusting at the same time is achieved, the adjustment is continuously carried out until the accurate injection is achieved, the complicated and time-consuming operation of repeatedly lifting the well is avoided, and the operation can be finished only by controlling on the ground; the invention is characterized in that the mechanical structure for adjusting the flow of the adjustable blanking plug is combined with an electromagnetic flowmeter, according to the existing working position relation between the mechanical arm and the auxiliary arm in the existing mechanical structure for flow regulation of the adjustable blanking plug, namely, when the height positions of the mechanical arm and the blanking plug are level, the auxiliary arm is just clamped on the end surface of the water inlet of the working pipeline of the water distributor, thereby creatively combining the mechanical structure with the electromagnetic flowmeter, arranging the electromagnetic flowmeter at the upper end of the mechanical structure, when the flow of the blanking plug is regulated by the mechanical structure, the electromagnetic flowmeter can be always positioned above the end surface of the water inlet of the working pipeline of the water distributor, and the influence of liquid flow disturbance on measured data is avoided. The invention does not simply superpose and connect the electromagnetic flowmeter and the mechanical structure for flow regulation of the adjustable blanking plug, but makes an inventive connection on the basis, because the electromagnetic flowmeter is necessarily positioned in the working pipeline of the water distributor when in work if the electromagnetic flowmeter is connected at other parts of the mechanical structure, although the function of measuring the modulation at the same time is also provided, the electromagnetic flowmeter is necessarily disturbed by the liquid flow, therefore, the invention creatively combines the electromagnetic flowmeter and the mechanical structure for flow regulation of the adjustable blanking plug, not only has the functions of the electromagnetic flowmeter and the mechanical structure, but also achieves unexpected technical effects, the influence of disturbance caused when the flow area and the shape of the electromagnetic flowmeter are changed when the flow enters the inlet of the working pipeline of the water distributor from the oil pipe is avoided, and the measurement precision is greatly improved.
Even there is cable head 3 of taking clamping structure in electromagnetic flowmeter 2's upper end, cable head 3's clamping structure can be used for pressing from both sides tight cable, still even there is guide arm 5 on the support body of rod 1 outer wall, guide arm 5 and arm 4 set up the homonymy and guide arm 5 that are supporting body of rod 1 and are located arm 4 under, arm 4, guide arm 5 and auxiliary arm 6 all are in the coplanar, the one end of guide arm 5 and auxiliary arm 6 is articulated with the support body of rod 1 outer wall, guide arm 5 and auxiliary arm 6 homoenergetic are from keeping away from the direction rotation of the support body of rod 1 outer wall to the laminating department of the support body of rod 1 outer wall around self hinged end.
The invention is also provided with the guide arm, so that the stability of the flowmeter in the working process can be improved. In the water distributor working pipeline, an adjustable blanking plug is arranged at the upper end of the water distributor working pipeline, a vertical guide groove is arranged at the lower end of the working pipeline, and the guide groove is positioned right below the adjustable blanking plug; when the flowmeter is used for descending a well, firstly, after a cable head clamps a cable by using a self clamping structure, a flowmeter instrument is put into an oil pipe by putting the cable down, and the cable head is provided with a centralizer, so that the whole flowmeter can be positioned at the center of the oil pipe all the time when the flowmeter is descended to a position where a guide arm enters a water distributor working pipeline and a mechanical arm and an auxiliary arm do not enter the water distributor working pipeline, the guide arm, the auxiliary arm and the mechanical arm are opened, wherein the opening means that the guide arm, the auxiliary arm and the mechanical arm rotate by a certain angle from a position attached to a support rod body to a direction far away from the support rod body, and an opened state is presented; the rotary flow meter makes the guide arm turn to the direction at guide way place, then continue to transfer the flowmeter, make the guide arm insert in the guide way, make the arm on the flowmeter adjust the direction at adjustable blanking plug place all the time like this, continue to transfer the flowmeter and make the auxiliary arm blocked by water injection mandrel working pipeline water inlet section, make the flowmeter can't transfer again, thereby fix a position the high position of electromagnetic flow meter, can guarantee that it is in water injection mandrel working pipeline water inlet section top all the time, the arm just in time can grasp adjustable blanking plug this moment. By the structure, the flowmeter can be completely positioned in three directions, namely the middle positioning of a cable head, the height positioning of the auxiliary arm, the guiding of the guide arm and the anti-rotation stable positioning, so that the accurate measurement of the flowmeter is ensured; the centralizer on the cable head can enable the flowmeter to be always positioned at the central position of the oil pipe, so that liquid flow flowing through the periphery of the instrument can be measured to the maximum extent, and the measurement accuracy is improved; the guide arm is inserted into the guide groove, so that the direction guide of the mechanical arm is realized when the flowmeter is lowered, and the flowmeter can be prevented from rotating in the radial direction under the action of liquid flow; the auxiliary arm is positioned on the upper end face of the working pipeline, so that the electromagnetic flowmeter is always positioned in the oil pipe above the water inlet section of the working pipeline of the water distributor, the injection quantity of the oil pipe can be measured as accurately as possible by the electromagnetic flowmeter, and the measurement error caused by disturbance when liquid flow enters the working pipeline of the water distributor from the oil pipe and the overflowing area and the shape of the liquid flow are changed is prevented. Wherein, the parameters of the distance between the guide arm and the auxiliary arm and the mechanical arm can be set according to the distance between the guide groove and the adjustable blanking plug in the working pipeline of the water distributor and the distance between the upper end surface of the working pipeline of the water distributor. The guide arm, the mechanical arm and the auxiliary arm are not opened in the process that the flowmeter is started to be lowered, so that the guide arm, the mechanical arm and the auxiliary arm are prevented from being clamped in the oil pipe and are difficult to continue to be lowered.
Preferably, the free end of the mechanical arm is connected with two shifting pieces which are arranged in parallel, the distance between the two shifting pieces is matched with the thickness of the edge head of the adjustable blanking plug, and the edge head of the adjustable blanking plug is inserted between the two shifting pieces through a certain gap formed between the two shifting pieces, so that the mechanical arm can grasp the adjustable blanking plug more stably.
Preferably, still including setting up the internal drive structure through program control at the bracing piece, drive structure and arm, the hinged end of auxiliary arm links to each other, drive structure can control the arm and the auxiliary arm rotates simultaneously, a set of drive structure through program control, can read automatic according to program control arm after the current injection volume at the electromagnetic flowmeter, adjust adjustable blanking plug, the flow that the control was poured into the stratum, it is more intelligent convenient to use, it judges the arm again and adjusts to need not the manual work to carry out the flow. The program may be an existing control program, and any program capable of controlling the mechanical arm to perform corresponding movement according to the received flow meter feedback data may be applied to the present invention.
Preferably, the supporting rod body is provided with a telescopic structure, the length of the supporting rod body is adjustable, and the distance between the guide arm and the auxiliary arm and the mechanical arm can be changed by adjusting the length of the supporting rod body, so that the adjustable plug-in device can be applied to working pipelines of water distributors with different parameters of the distance between various guide grooves and the adjustable plug and between the guide grooves and the upper end face of the working pipeline of the water distributor.
Preferably, the free end of the guide arm is connected with a locking rod, the end part of the locking rod extends into the supporting rod body and is connected with a locking mechanism, and the locking mechanism can drive the locking rod to extend out of or retract into the supporting rod body, so that the guide arm can be conveniently opened outwards or retracted inwards.
Example 2
As shown in figure 1, the system for measuring and adjusting the injection well flow simultaneously comprises a flow meter, an oil pipe 7, a water distributor 8 arranged in the oil pipe, an adjustable blanking plug 9 arranged on the inner wall of a working pipeline of the water distributor, a support rod body of the flow meter vertically arranged in the working pipeline of the water distributor, a mechanical arm of the flow meter connected with the upper end of the blanking plug, an electromagnetic flow meter of the flow meter arranged in the oil pipe above the upper end surface of the water distributor, a driving program and a driving structure arranged in the support rod body and controlled by the program, wherein the driving program is connected with the electromagnetic flow meter and the driving structure, the driving structure is connected with the mechanical arm and a hinged end of an auxiliary arm, the driving structure can control the mechanical arm and the auxiliary arm to rotate simultaneously, the driving structure can automatically drive the driving structure to control the mechanical arm and the auxiliary arm after the electromagnetic flow meter reads the current injection amount, and adjusting the adjustable blanking plug.
Example 3
As shown in fig. 1, a method for measuring and adjusting injection well flow rate simultaneously, step 1) puts the flowmeter into the oil pipe, the support rod body enters the water distributor, so that the mechanical arm is connected with the upper end of the adjustable blanking plug, the auxiliary arm is positioned on the upper end surface of the water distributor, and the electromagnetic flowmeter is positioned in the oil pipe above the upper end surface of the water distributor; and 2) after the electromagnetic flowmeter measures the flow of the liquid flow flowing into the water distributor, the electromagnetic flowmeter transmits a signal to a driving program, the driving program analyzes the flow, then the driving structure is controlled to drive the mechanical arm to rotate, and the mechanical arm drives the adjustable blanking plug to lift up or put down, so that the flow adjustment is realized.
In the above, the driving mechanism and the locking mechanism capable of controlling the opening or the retraction of the auxiliary arm, the mechanical arm and the guide arm are all implemented by adopting the existing mechanical structure, so how to implement the opening or the retraction of the auxiliary arm, the mechanical arm and the guide arm by the driving mechanism and the locking mechanism is not explained in the invention.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a flowmeter for oil field injection well limit is surveyed and is transferred, including electromagnetic flowmeter (2), a serial communication port, still include the support body of rod (1) of vertical setting, electromagnetic flowmeter (2) coaxial coupling is in the upper end of support body of rod (1), even have on the support body of rod (1) outer wall be used for the card to establish in the planar auxiliary arm (6) of water inlet of water injection mandrel top and be used for snatching the arm (4) of adjustable blanking plug, auxiliary arm (6) and arm (4) symmetry respectively set up the both sides at the support body of rod (1), electromagnetic flowmeter (2) are located the top of auxiliary arm (6) all the time, the one end of arm (4) and auxiliary arm (6) all is articulated with the support body of rod (1) outer wall; the end, far away from the hinged end, of each of the mechanical arm (4) and the auxiliary arm (6) is a free end, the free end of each of the mechanical arm (4) and the free end of each of the auxiliary arms (6) can move back and forth around the hinged end of the mechanical arm from the joint with the outer wall of the supporting rod body (1) to the direction far away from the outer wall of the supporting rod body (1), and the free end of each of the mechanical arms (4) can adjust the flow of the adjustable blanking plug by controlling the position of the inner core of the adjustable blanking plug; the upper end of the electromagnetic flowmeter (2) is connected with a cable head (3) with a clamping structure, the clamping structure of the cable head (3) can be used for clamping a cable, the outer wall of the supporting rod body (1) is also connected with a guide arm (5), the guide arm (5) and the mechanical arm (4) are arranged on the same side of the supporting rod body (1), the guide arm (5) is located right below the mechanical arm (4), the guide arm (5) and the auxiliary arm (6) are all located on the same plane, one end of the guide arm (5) and one end of the auxiliary arm (6) are hinged to the outer wall of the supporting rod body (1), and the guide arm (5) and the auxiliary arm (6) can rotate around the hinged ends of the guide arm (5) and the auxiliary arm (6) from the joint with the outer wall of the supporting rod body (1; the free end part of the mechanical arm (4) is connected with two shifting pieces which are arranged in parallel, and the distance between the two shifting pieces is matched with the thickness of the head part of the adjustable blanking plug.
2. The flowmeter for measuring and adjusting the oil field injection well edge according to claim 1, further comprising a driving structure which is arranged in the support rod body (1) and is controlled by a program, wherein the driving structure is connected with the hinged ends of the mechanical arm (4) and the auxiliary arm (6), and the driving structure can control the mechanical arm (4) and the auxiliary arm (6) to rotate simultaneously.
3. The flowmeter for the side-by-side regulation of the oilfield injection well according to claim 1, wherein the cable head (3) is provided with a centralizer.
4. Flow meter for oilfield injection well side-regulation according to claim 1, characterized in that the support rod body (1) has a telescopic structure, the length of the support rod body (1) being adjustable.
5. The flowmeter for the oilfield injection well side-measuring and side-adjusting according to claim 1, characterized in that a locking rod is connected to the free end of the guide arm (5), the end of the locking rod extends into the support rod body (1) and is connected with a locking mechanism, and the locking mechanism can drive the locking rod to extend out of or retract into the support rod body (1).
6. A system for measuring and adjusting the flow rate of an injection well at the same time is characterized by comprising the flowmeter according to any one of claims 1 to 5, an oil pipe (7) and a water distributor (8) arranged in the oil pipe (7), wherein an adjustable blanking plug (9) is arranged on the inner wall of a working pipeline of the water distributor (8), a support rod body (1) of the flowmeter is vertically arranged in the working pipeline of the water distributor (8), a mechanical arm (4) of the flowmeter is connected with the upper end of the adjustable blanking plug, an electromagnetic flowmeter (2) of the flowmeter is arranged in the oil pipe (7) above the upper end surface of the water distributor (8), the system further comprises a driving program and a driving structure which is arranged in a support rod body and controlled by the program, the driving program is connected with the electromagnetic flowmeter and the driving structure, the driving structure is connected with the mechanical arm and the hinged end of an auxiliary arm, and the driving structure can control the mechanical arm and the auxiliary arm to, the driving program can automatically drive the driving structure to control the mechanical arm and the auxiliary arm after the electromagnetic flowmeter reads the current injection amount, and the adjustable blanking plug is adjusted.
7. A method for injection well flow rate measurement and adjustment, characterized by the steps of 1) placing the flowmeter of any of claims 1-5 into an oil pipe, inserting the support rod body into the working pipe of a water distributor so that the mechanical arm is connected to the upper end of the adjustable plug, positioning the auxiliary arm at the upper end face of the water distributor, and positioning the electromagnetic flowmeter in the oil pipe (7) above the upper end face of the water distributor; and 2) after the electromagnetic flowmeter measures the flow of the liquid flow flowing into the water distributor, the electromagnetic flowmeter transmits a signal to a driving program, the driving program analyzes the flow, then the driving structure is controlled to drive the mechanical arm to rotate, and the mechanical arm drives the adjustable blanking plug to lift up or put down, so that the flow adjustment is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810500151.1A CN108729892B (en) | 2018-05-23 | 2018-05-23 | Flow meter for measuring and adjusting oil field injection well |
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| CN201810500151.1A CN108729892B (en) | 2018-05-23 | 2018-05-23 | Flow meter for measuring and adjusting oil field injection well |
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| CN108729892B true CN108729892B (en) | 2021-04-30 |
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| CN109723425B (en) * | 2018-12-12 | 2023-08-18 | 四川省科学城久利电子有限责任公司 | Flowmeter for oil pipe of oilfield water injection well |
| CN115110930A (en) * | 2021-03-23 | 2022-09-27 | 中国石油天然气股份有限公司 | Underground testing and adjusting instrument and oil field layered water injection device |
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| CN201635723U (en) * | 2010-04-22 | 2010-11-17 | 西安思坦仪器股份有限公司 | Double-probe automatic flow measuring and adjusting instrument for water injection well |
| CN201884017U (en) * | 2010-12-21 | 2011-06-29 | 大庆油田有限责任公司 | Water flow adjusting device adopting dual-non-collecting lamination single measuring technology |
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