CN111042804A - Starting device and method for magnetic signal driven mechanical positioner - Google Patents
Starting device and method for magnetic signal driven mechanical positioner Download PDFInfo
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- CN111042804A CN111042804A CN202010017944.5A CN202010017944A CN111042804A CN 111042804 A CN111042804 A CN 111042804A CN 202010017944 A CN202010017944 A CN 202010017944A CN 111042804 A CN111042804 A CN 111042804A
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- 238000001514 detection method Methods 0.000 claims description 33
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Abstract
The invention provides a starting device and a starting method for a magnetic signal driven mechanical positioner. When the mechanical positioner passes through the short casing coupling, the mechanical positioner is controlled to open/close the power execution assembly by means of magnetic flux change, so that the coupling can be displayed by a load change signal of a ground display instrument, the depth of the short casing is determined, and the problem that the coiled tubing cannot be effectively positioned on an air-tight casing-buckled well is solved.
Description
Technical Field
The invention relates to the technical field of oil and gas field reservoir transformation, in particular to a magnetic signal driven mechanical positioner starting device and method. The invention relates to one of the common downhole operation tools in the reservoir transformation operation of oil and gas fields, which is suitable for the fracturing construction of a coiled tubing with a bottom seal.
Background
The coiled tubing is used as a conveying tool, has the problems of pre-bending and stress expansion in the well entering process, and becomes a bottleneck of operation application in the cable-free condition. The current approach is to use mechanical positioners.
The common mechanical locator depth correction technology is that the locator is connected to the bottom of a process pipe column, the locator is lowered to a position 5-6 m below a short casing coupling, a high-precision force-measuring sensor and an intelligent instrument are connected to the upper end of the pipe column, and then the pipe column is lifted up to find the short casing coupling. When the locator enters the short casing collar, the surface display instrument can generate a load change signal for display, and the depth of the short casing can be determined at the moment. The mechanical positioner has good precision.
However, the method is only suitable for common long round thread buckle casing wells, but with the development of the petroleum industry, particularly the development of deep wells, ultra-deep wells, high-pressure gas wells and directional wells and the exploitation of corrosive gas wells such as high-sulfur carbon dioxide and the like, higher requirements are put forward on the service performance of petroleum casings, and oil casings with API standard threaded connections (such as short, long round threads and buttress threads) are difficult to meet the production requirements in many cases, so that special threaded connections of the type are developed at home and abroad: vam-top, must, tp-cq and the like, and the special threaded connections have good anti-thread gluing performance, reliable air-tight performance and high connection strength. Because the air-tight buckle adopted by the air-tight buckle sleeve is sealed by the metal end face, the end face of the male buckle pushes the step face of the female buckle to form sealing after the buckle is in place, and the existing common sleeve coupling mechanical positioner cannot realize positioning in the special air-tight buckle sleeve well unlike the common sleeve coupling with a gap of about 2 cm.
Disclosure of Invention
In order to solve the problem that the conventional common casing coupling mechanical positioner cannot realize positioning in the gas-tight casing buckling well, the invention provides a magnetic signal driving mechanical positioner starting device and a magnetic signal driving mechanical positioner starting method, and the invention solves the problem of positioning of a continuous oil pipe fracturing construction target layer in the gas-tight casing buckling well. The invention controls the pulse on/off of the electromagnetic mechanism power supply through the magnetic flux change, thereby controlling the opening/closing of the mechanical positioner to realize the positioning.
The technical scheme adopted by the invention is as follows:
the utility model provides a magnetic signal drive mechanical positioner starting drive, includes power executive component, detection control assembly, high temperature battery pack and lower clutch, high temperature battery pack, detection control assembly and power executive component connect the formation tubular column in order, high temperature battery pack and detection control assembly and power executive component electricity respectively be connected.
The power executing assembly comprises a telescopic rod, a connector, a lead screw and a large-torque direct current motor with a planetary reducer; the telescopic rod is connected with the large-torque direct current motor with the planetary reducer through a lead screw, and the connector is arranged on the telescopic rod.
The detection control assembly at least comprises a single chip microcomputer and a magnetic positioner, and the single chip microcomputer is in electric signal connection with the magnetic positioner.
When the magnetic locator arranged in the detection control assembly passes through the casing coupling, magnetic flux changes to generate electromotive force, the electromotive force generated by the tool in ascending and descending is different, and the power execution assembly is started when the tool is judged to be in descending by the single chip microcomputer.
The tool consists of a magnetic signal driving mechanical positioner starting device and a mechanical positioner connected to the connector.
The high-temperature battery assembly is a high-temperature lithium battery, and the high-temperature lithium battery is a 150 ℃ high-temperature lithium battery.
A magnetic signal driven mechanical positioner starting method comprises the following specific steps: after the power execution assembly receives a starting signal, the high-torque direct current motor drives the lead screw to retract by driving the planetary reducer, meanwhile, the telescopic rod is driven to retract, and the mechanical positioning device connected to the telescopic rod is started; when the power execution assembly receives the signal unchanged, the telescopic rod is controlled to keep the current state; after the power execution assembly receives a closing signal, the large-torque direct current motor drives the lead screw to drive the telescopic rod to reset by driving the lead screw through the planetary reducer, and the mechanical positioner connected to the telescopic rod is closed.
The invention has the beneficial effects that:
the detection control assembly of the invention uses the change signal of the magnetic flux as an intelligent control signal, thereby realizing the special function requirement of automatically controlling the intermittent work of an electromechanical actuating mechanism.
The detection control assembly effectively controls the action of the power execution assembly, prevents the occurrence of drill jamming, and is safe and reliable.
The invention realizes stable power output to the mechanical positioner, and can ensure more accurate action and more accurate positioning of the mechanical positioner.
The following will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figures, the reference numbers are: 1. a telescopic rod; 2. a connector; 3. a lead screw; 4. the large-torque direct current motor is provided with a planetary reducer; 5. detecting a control component; 6. a high temperature battery assembly; 7. and a lower joint.
Detailed Description
Example 1:
in order to solve the problem that the conventional common casing coupling mechanical positioner cannot realize positioning in the gas-tight buckling casing well, the invention provides a magnetic signal driving mechanical positioner starting device and a magnetic signal driving mechanical positioner starting method shown in figure 1, and the invention solves the positioning problem of a continuous oil pipe fracturing construction target layer in the gas-tight buckling casing well. The invention controls the pulse on/off of the electromagnetic mechanism power supply through the magnetic flux change, thereby controlling the opening/closing of the positioner to realize the positioning.
The utility model provides a magnetic signal drive mechanical positioner starting drive, includes power executive component, detection control assembly 5, high temperature battery pack 6 and lower clutch 7, high temperature battery pack 6, detection control assembly 5 and power executive component connect the formation tubular column in order, high temperature battery pack 6 and detection control assembly 5 and power executive component electricity respectively be connected.
The working process of the invention is as follows:
the high-temperature battery assembly 6 provides power for the detection control assembly 5, the telescopic rod 1 is connected with the mechanical positioner, the lower connector 7 is connected with the fracturing tool string, and when the tool string is lowered to be close to a target layer, the tool string is lifted upwards to start positioning; when the detection control assembly 5 passes through the short sleeve coupling, an opening signal is given to the high-torque direct current motor with the planetary reducer 4, the lead screw 3 is driven to retract, the connected telescopic rod 1 is driven to move upwards, and the mechanical positioner connected with the telescopic rod 1 is started at the moment; when the detection control component 5 detects that the pulling force or the stroke of the telescopic rod 1 exceeds a set value, a control signal is output to control the telescopic rod 1 to keep the state for 2 seconds, then the resetting is started, and at the moment, the mechanical positioner connected with the telescopic rod 1 is closed to complete one mechanical positioning action.
The invention realizes the positioning of a target layer by identifying the wall thickness of the sleeve to control the mechanical positioner. The starting device is provided with a detection control assembly 5, when the short coupling passes through, the opening/closing of the power execution assembly is controlled by the change of magnetic flux, and the opening/closing of a mechanical positioner connected to the power execution assembly can be realized, so that the positioning function is realized.
The method solves the problem of positioning the target layer of the fracturing construction of the continuous oil pipe in the airtight buckle sleeve well. The invention controls the pulse on/off of the electromagnetic mechanism power supply through the magnetic flux change, thereby controlling the opening/closing of the positioner to realize the positioning.
Example 2:
based on embodiment 1, in this embodiment, preferably, the power executing assembly includes a telescopic rod 1, a connector 2, a lead screw 3, and a large-torque dc motor with a planetary reducer 4; the telescopic rod 1 is connected with a large-torque direct current motor with a planetary reducer 4 through a lead screw 3, and the connector 2 is arranged on the telescopic rod 1.
Preferably, the detection control assembly 5 at least comprises a single chip microcomputer and a magnetic positioner, and the single chip microcomputer is in electric signal connection with the magnetic positioner.
Preferably, when the magnetic locator arranged in the detection control assembly 5 passes through the casing coupling, the magnetic flux changes to generate electromotive force, the electromotive force generated by the tool in ascending and descending is different, and the power execution assembly is started when the electromotive force is judged to be in descending by the single chip microcomputer.
The push-pull force detection function of the detection control assembly 5 detects and sets the tension and the stroke of the telescopic rod 1, and in the retraction process of the telescopic rod, when the tension of the telescopic rod 1 exceeds the set tension, the detection control assembly 5 controls the telescopic rod to stop retracting, and resets after keeping the state for a certain time, so that the positioning action of the mechanical positioner is completed. The motion direction identification function of the detection control assembly 5 judges the motion direction of the tool according to the difference of output signals of the coupling detection module when the tool works in a casing, and then the tool only performs the return/holding/resetting work of the telescopic rod 1 when moving upwards.
In the invention, a time sequence control algorithm processor in a singlechip in the detection control assembly 5 can set the working time of the tool in advance, namely the tool reaches the expected position, the assembly is in a dormant state, and the tool starts to work when the preset time is waited to save the battery power.
Preferably, the tool consists of a magnetic signal driving mechanical positioner starting device and a mechanical positioner connected to the connecting head 2.
The detection control assembly 5 provided by the invention is used for detecting a casing coupling and judging the tool movement direction, transmits signals to the single chip microcomputer, and sends out instruction control signals by the single chip microcomputer to control the operation of the front high-torque direct current motor with the planetary reducer 4. A magnetic positioner is arranged in the detection control assembly, magnetic flux can be changed to generate electromotive force when the magnetic locator passes through a casing coupling, the electromotive force of the tool in ascending and descending is different, and the single chip microcomputer judges and identifies the electromotive force in descending and controls the motor to operate.
Preferably, the high-temperature battery assembly 6 is a high-temperature lithium battery, and the high-temperature lithium battery is a 150 ℃ grade high-temperature lithium battery.
The high-temperature battery module 6 of the present invention is an existing module, and will not be further described in the present invention.
A magnetic signal driven mechanical positioner starting method comprises the following specific steps: after the power execution assembly receives a starting signal, the high-torque direct current motor drives the planetary reducer 4 to drive the screw rod 3 to retract, meanwhile, the telescopic rod 1 is driven to retract, and the mechanical positioning device connected to the telescopic rod 1 is started; when the power executing assembly receives the signal unchanged, the power executing assembly controls the telescopic rod 1 to keep the current state; after the power execution assembly receives a closing signal, the large-torque direct current motor drives the lead screw 3 to drive the telescopic rod 1 to reset by driving the planetary reducer 4, and the mechanical positioner connected to the telescopic rod 1 is closed.
When the invention works, the invention is connected with the mechanical positioner through the connector 2. The high-temperature battery assembly 6 provided by the invention provides power for the detection control assembly 5 and the power execution assembly. The sensing and control assembly 5 uses magnetic elements to determine casing collar locations. The high-torque direct-current motor is provided with the planetary reducer 4 to drive the screw rod 3 so as to realize the rapid retraction/reset action of the telescopic rod 1, and the self-locking of the screw rod 3 is relied to realize the 'holding' state of the telescopic rod after the retraction tension reaches the maximum value. When the power actuator works, when a casing coupling is detected, a working signal can be generated to control the power actuator to start/close; the invention realizes the positioning of a target layer by identifying the wall thickness of the sleeve to control the mechanical positioner. The starting device is provided with a detection control assembly 5, when the short coupling passes through, the opening/closing of the power execution assembly is controlled by the change of magnetic flux, and the opening/closing of a mechanical positioning device connected to the power execution assembly can be realized, so that the positioning function is realized.
The method solves the problem of positioning the target layer of the fracturing construction of the continuous oil pipe in the airtight buckle sleeve well. The invention controls the pulse on/off of the electromagnetic mechanism power supply through the magnetic flux change, thereby controlling the opening/closing of the positioner to realize the positioning. When the short sleeve collar passes through, the mechanical positioning device is controlled to be opened/closed by depending on the change of the magnetic flux, so that the collar can be displayed by a load change signal of a ground display instrument, the depth of the short sleeve can be determined, and the problem that the coiled tubing cannot be effectively positioned on an air-tight buckle sleeve well is solved.
The detection control assembly provided by the invention can effectively control the action of the power execution assembly, prevent the occurrence of drill jamming, and is safe and reliable. The detection control assembly of the invention uses the change signal of the magnetic flux as an intelligent control signal, thereby realizing the special function requirement of automatically controlling the intermittent work of an electromechanical actuating mechanism. The invention realizes stable power output to the mechanical positioner, and can ensure more accurate action and more accurate positioning of the mechanical positioner.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention. The device structure and the system method which are not described in detail in the embodiment are all the well-known technologies and common methods in the industry, and are not described one by one here.
Claims (7)
1. A magnetic signal driven mechanical positioner starting device is characterized in that: including power execution assembly, detection control assembly (5), high temperature battery pack (6) and lower clutch (7), high temperature battery pack (6), detection control assembly (5) and power execution assembly connect in order and form the tubular column, high temperature battery pack (6) and detection control assembly (5) and power execution assembly electricity respectively connect.
2. A magnetic signal actuated mechanical positioner actuation apparatus according to claim 1, wherein: the power execution assembly comprises a telescopic rod (1), a connector (2), a lead screw (3) and a large-torque direct-current motor with a planetary reducer (4); the telescopic rod (1) is connected with a large-torque direct-current motor with a planetary reducer (4) through a lead screw (3), and the connector (2) is arranged on the telescopic rod (1); the connector (2) is connected with a mechanical positioner.
3. A magnetic signal actuated mechanical positioner actuation apparatus according to claim 1, wherein: the detection control assembly (5) at least comprises a single chip microcomputer and a magnetic positioner, and the single chip microcomputer is in electric signal connection with the magnetic positioner.
4. A magnetic signal actuated mechanical positioner actuation apparatus according to claim 3, wherein: when a magnetic locator arranged in the detection control assembly (5) passes through a casing coupling, magnetic flux changes to generate electromotive force, the electromotive force generated by the tool in ascending and descending is different, and the power execution assembly is started when the tool is judged to be in descending by the single chip microcomputer.
5. A magnetic signal actuated mechanical positioner actuation apparatus according to claim 4, further comprising: the tool consists of a magnetic signal driving mechanical positioner starting device and a mechanical positioner connected to the connector (2).
6. A magnetic signal actuated mechanical positioner actuation apparatus according to claim 1, wherein: the high-temperature battery assembly (6) is a high-temperature lithium battery which is a 150 ℃ high-temperature lithium battery.
7. A magnetic signal actuated mechanical positioner actuation method according to any one of claims 1 to 6, wherein: the method comprises the following specific steps: after the power execution assembly receives a starting signal, the high-torque direct current motor drives the screw rod (3) to retract by driving the planetary reducer (4), and simultaneously drives the telescopic rod (1) to retract, and the mechanical positioning device connected to the telescopic rod (1) is started; when the power execution assembly receives the signal unchanged, the power execution assembly controls the telescopic rod (1) to keep the current state; after the power execution assembly receives a closing signal, the large-torque direct-current motor drives the screw rod (3) to drive the telescopic rod (1) to reset by driving the planetary reducer (4), and the mechanical positioner connected to the telescopic rod (1) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010017944.5A CN111042804B (en) | 2020-01-08 | Magnetic signal driven mechanical positioner starting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010017944.5A CN111042804B (en) | 2020-01-08 | Magnetic signal driven mechanical positioner starting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111042804A true CN111042804A (en) | 2020-04-21 |
| CN111042804B CN111042804B (en) | 2024-04-30 |
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| CN211974959U (en) * | 2020-01-08 | 2020-11-20 | 中国石油天然气集团有限公司 | Magnetic signal drive mechanical positioner starting drive |
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|---|---|---|---|---|
| JPH06238237A (en) * | 1993-02-15 | 1994-08-30 | Oki Electric Ind Co Ltd | Adjustment of prestress of vibrator |
| EP0697497A1 (en) * | 1994-08-18 | 1996-02-21 | Halliburton Company | Downhole joint locator |
| US6536519B1 (en) * | 2000-10-13 | 2003-03-25 | Schlumberger Technology Corp. | Downhole tool to generate tension pulses on a slickline |
| US20030117134A1 (en) * | 2001-12-20 | 2003-06-26 | Schlumberger Technology Corporation | Downhole magnetic-field based feature detector |
| US20120217009A1 (en) * | 2009-10-30 | 2012-08-30 | Welltec A/S | Positioning tool |
| US20150285069A1 (en) * | 2014-04-04 | 2015-10-08 | Micro-G Lacoste, Inc. | High Resolution Continuous Depth Positioning in a Well Bore Using Persistent Casing Properties |
| CA2906468A1 (en) * | 2014-09-26 | 2016-03-26 | Ncs Multistage Inc. | Hydraulic locator |
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Effective date of registration: 20201030 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1207 Applicant before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. Applicant before: CHINA NATIONAL PETROLEUM Corp. Applicant before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. |
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