CN113464119A - Accurate correcting unit of oil recovery well load sensor - Google Patents
Accurate correcting unit of oil recovery well load sensor Download PDFInfo
- Publication number
- CN113464119A CN113464119A CN202110645214.4A CN202110645214A CN113464119A CN 113464119 A CN113464119 A CN 113464119A CN 202110645214 A CN202110645214 A CN 202110645214A CN 113464119 A CN113464119 A CN 113464119A
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- Prior art keywords
- load sensor
- arc
- plate
- reinforcing
- production well
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- 238000011084 recovery Methods 0.000 title description 2
- 238000004519 manufacturing process Methods 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 42
- 210000002445 nipple Anatomy 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241001397809 Hakea leucoptera Species 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000003672 gas field water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
- E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
- E21B47/009—Monitoring of walking-beam pump systems
-
- 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
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses an accurate correction device for a load sensor of an oil production well. The precise correction device comprises: the support plate, the arc-shaped sleeve plate and the pin bushing are arranged on the support plate; be provided with the U-shaped opening in the backup pad, arc lagging sets up perpendicularly in the backup pad, and with the U-shaped open-ended opening direction is unanimous, the radian is the same, it sets up to wear the cotter level keep away from on the arc lagging on the outer wall of the one end of backup pad. The accurate correcting device can effectively correct the load sensor and solve the problem that a remote transmission signal of the load sensor is unstable.
Description
Technical Field
The invention belongs to the technical field of oil and gas field water injection development equipment, and particularly relates to an accurate correction device for a load sensor of an oil production well.
Background
The oil well load sensor is used as important equipment for acquiring indicator diagram and remotely transmitting suspension point load data of the pumping well, and is widely applied to the production process of the pumping well in each oil field. In the production process of the oil field, due to the reasons of misalignment of a polished rod and a well head of the pumping unit, levelness of a rope hanger and the like, parts such as a load sensor deviate, contact failure of the load sensor is caused, the conditions of low accuracy of indicator diagram recording and unstable remote transmission signals are caused, and judgment of the production condition of the pumping unit well is seriously influenced. And because the loose amount among the fixed pin of the load sensor, the polished rod and the polished rod is too large, the problems that the fixed pin of the load sensor is bent, deformed and broken during the up-and-down reciprocating motion of the polished rod of the pumping unit, the load sensor is separated and falls, the screw of the polished rod eye is frequently broken and the like are easily caused.
At present, the mode of disassembling and correcting the load sensor is generally adopted for solving the problem of unstable remote transmission signals of the load sensor. On one hand, the post staff needs to perform climbing operation in the operation process, the operation is not easy, and risks exist; on the other hand, frequent dismounting of the load sensor can cause unbalanced stress of the load sensor, and the frequent loading and unloading processes of the load sensor can cause impact on the load sensor, so that the service life of the load sensor is shortened.
Disclosure of Invention
The invention aims to: aiming at the problem that the remote transmission signal of the load sensor is unstable in the prior art, the invention provides an accurate correction device for the load sensor of an oil production well.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a production well load sensor accurate correcting unit which characterized in that includes: the support plate, the arc-shaped sleeve plate and the pin bushing are arranged on the support plate; be provided with the U-shaped opening in the backup pad, arc lagging sets up perpendicularly in the backup pad, and with the U-shaped open-ended opening direction is unanimous, the radian is the same, it sets up to wear the cotter level keep away from on the arc lagging on the outer wall of the one end of backup pad.
Further, consider wear the cotter with the stability of connecting between the arc lagging wear the cotter with on the basis of arc lagging lug connection, still be provided with the reinforcement between the two and consolidate, avoid wear the cotter with the disconnection of arc lagging leads to accurate correcting unit breaks off. In particular, the reinforcement has the following three possible embodiments:
(1) the reinforcing member is a reinforcing plate, the reinforcing plate is vertically arranged on the supporting plate, the side surface of the reinforcing plate is connected with the outer wall of the arc-shaped sleeve plate, and the upper end surface of the reinforcing plate is connected with the pin bushing;
(2) the reinforcing piece is a reinforcing block with a triangular cross section, and the reinforcing block is simultaneously connected with the arc-shaped sleeve plate and the pin bushing;
(3) the reinforcing member is the reinforcement post, the slope of reinforcement post sets up, and both ends are connected respectively arc lagging with wear the cotter bush.
Preferably, the reinforcing member is in the form of a reinforcing plate.
Further, the surface of the reinforcing member connected with the pin penetrating sleeve is provided with a radian matched with the pin penetrating sleeve.
Further, the arc-shaped sleeve plate is a semicircular sleeve plate.
Further, the inner diameter of the arc-shaped sleeve plate is matched with the outer diameter of the polish rod nipple.
Furthermore, an elastic buffer cushion is arranged on the inner wall of the arc-shaped sleeve plate.
Compared with the prior art, the invention has the beneficial effects that:
when the accurate correcting device is used, the plane of the supporting plate is attached to the contact point of the load sensor, the arc-shaped sleeve plate and the penetrating pin are sleeved in the U-shaped channel of the load sensor and pressed on the side face of the polished rod short section, and the supporting plate flattens and corrects the load sensor under the loading action of the oil pumping unit, so that the correcting action of the oil well load sensor is easily realized; meanwhile, the arc-shaped sleeve plate compacts the polished rod short section, so that looseness between the polished rod short section and the rope hanger is reduced, the load sensor is stably contacted with the rope hanger, the data acquisition and transmission stability of the load sensor is improved, the maintenance cost of the load sensor is reduced, the workload of workers for frequently correcting and disassembling the load sensor is reduced, the impact damage of the disassembling process to the load sensor is reduced, and the service life of the load sensor is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of a precise correction device for a load sensor of a production well according to the present invention;
FIG. 2 is a top view of the precision correction device of the present invention for a production well load cell;
FIG. 3 is a schematic view of another structure of the device for accurately correcting the load sensor of the oil production well according to the present invention;
FIG. 4 is another top view of the precision correction device for a production well load cell of the present invention;
FIG. 5 is a schematic view of another embodiment of the device for accurately correcting the load sensor of the oil production well according to the present invention;
FIG. 6 is a schematic view of another structure of the device for accurately correcting the load sensor of the oil production well according to the present invention;
fig. 7 is a schematic view of an assembly process of the precision correction device for a load sensor of a production well according to the present invention, wherein the precision correction device in the assembly a is in a horizontal state, and the precision correction device in the assembly B is in a vertical state;
figure 8 is a bottom view of the assembly B of figure 7.
Description of the reference numerals
1: a support plate; 2: a U-shaped opening; 3: an arc-shaped sleeve plate; 4: a pin bush is penetrated; 5: a contact; 6: a fixing pin; 7: a U-shaped channel; 8: a reinforcing plate; 9: a reinforcing block; 10: reinforcing columns; 11: an elastic buffer cushion.
Detailed Description
Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
FIG. 1 is a schematic structural diagram of a precise correction device for a load sensor of a production well according to the present invention; FIG. 2 is a top view of the precision correction device of the present invention for a production well load cell; FIG. 3 is a schematic view of another structure of the device for accurately correcting the load sensor of the oil production well according to the present invention; FIG. 4 is another top view of the precision correction device for a production well load cell of the present invention; FIG. 5 is a schematic view of another embodiment of the device for accurately correcting the load sensor of the oil production well according to the present invention; FIG. 6 is a schematic view of another structure of the device for accurately correcting the load sensor of the oil production well according to the present invention; fig. 7 is a schematic view of an assembly process of the precision correction device for a load sensor of a production well according to the present invention, wherein the precision correction device in the assembly a is in a horizontal state, and the precision correction device in the assembly B is in a vertical state; figure 8 is a bottom view of the assembly B of figure 7.
As shown in fig. 1 to 8, the precise correction device includes: the device comprises a supporting plate 1, an arc-shaped sleeve plate 3 and a pin bushing 4; be provided with U-shaped opening 2 in the backup pad 1, arc lagging 3 sets up perpendicularly in backup pad 1, and unanimous, the radian the same with U-shaped opening 2's opening direction, wears 4 levels of round pin cover and sets up on the outer wall of the one end of keeping away from backup pad 1 on arc lagging 3.
The working principle is as follows: under the working state, the accurate correction device is connected with the load sensor. Specifically, the supporting plate 1 is placed on a contact 5 on the upper end face of the load sensor, the inner wall of the arc-shaped sleeve plate 3 is attached to the side face of a polished rod nipple (not shown in the figure), and the pin bushing 4 is sleeved on a fixing pin 6 of the load sensor. Under the action of loading of the oil pumping unit, the load of the oil pumping unit acts on the supporting plate 1, and the load sensor is leveled under the connection and centralization action of the supporting plate 1 and the pin bushing 4 on the load sensor; simultaneously through 3 compaction polished rod nipple joints of arc lagging, reduce the loose amount between polished rod nipple joint and polished rod eye (not shown in the figure), make load sensor and polished rod eye contact stability, improve the stability of load sensor data acquisition, transmission, reduced load sensor's maintenance cost, reduce the staff and frequently correct the work load of dismantling load sensor, reduce the impact damage of dismantlement process to load sensor, extension load sensor's life.
The assembly process of the precise correction device is as follows:
(1) firstly, unloading the oil pumping unit to ensure that a space is reserved between a square card (not shown in the figure) and a load sensor;
(3) the fixing pin 6 of the load sensor is disassembled;
(4) as shown in fig. 7A, the arc-shaped sleeve plate 3 of the precise correction device is horizontally inserted into the U-shaped channel 7 of the load sensor, and then the fixing pin 6 of the load sensor passes through the pin bushing 4 for fixing;
(5) as shown in fig. 7B, the accurate correcting device in the overturning enables the device to be in a vertical state, so that the lower surface of the supporting plate 1 is attached to the contact 5 on the upper end surface of the load sensor, and the arc-shaped sleeve plate 3 is pressed on the side surface of the polished rod short section.
(6) And loading the oil pumping unit to press the square clamp on the supporting plate 1.
It should be noted that the polished rod nipple, the load sensor, the square clamp, the polished rod eye and the connection relationship therebetween belong to the prior art, and are not described herein again. It should be noted that, because polished rod nipple joint position is not necessarily hugged closely the cambered surface of load sensor's U-shaped passageway 7, so will fix earlier and wear cotter 4, the accurate correcting unit of upset again for polished rod nipple joint chucking is being pushed away to arc lagging 3, and polished rod nipple joint activity space diminishes under the centre gripping of arc lagging 3 and load sensor's U-shaped passageway 7. If the precise correction device is turned over and then the pin bushing 4 is fixed, the fixing pin 6 may not be connected well.
Further, consider to wear the stability of being connected between round pin cover 4 and the arc lagging 3, on wearing the basis of round pin cover 4 and the 3 lug connection of arc lagging, still be provided with the reinforcement between the two and consolidate, wear round pin cover 4 and the disconnection of arc lagging 3 after avoiding long-time the use and lead to accurate correcting unit to break off. In particular, there are three possible embodiments of the reinforcement:
(1) as shown in fig. 1 and 3, the reinforcing member is a reinforcing plate 8, the reinforcing plate 8 is vertically arranged on the support plate 1, the side surface of the reinforcing plate 8 is connected with the outer wall of the arc-shaped sleeve plate 3, and the upper end surface of the reinforcing plate 8 is connected with the pin bushing 4. The reinforcing plate 8 reinforces the pin bush 4 and the arc-shaped sleeve plate 3 and also reinforces the arc-shaped sleeve plate 3 and the supporting plate 1, so that the structure of the accurate correction device is more stable.
(2) As shown in fig. 5, the reinforcing member is a reinforcing block 9 with a triangular cross-sectional shape, and the reinforcing block 9 connects the arc-shaped sleeve plate 3 and the pin bushing 4 at the same time.
(3) As shown in fig. 6, the reinforcing member is a reinforcing column 10, the reinforcing column 10 is obliquely arranged, and two ends of the reinforcing column are respectively connected with the arc-shaped sleeve plate 3 and the pin bushing 4. Firm triangle-shaped bearing structure is formed among reinforcement post 10, wear the round pin cover 4, the arc lagging 3 three for it is more firm to wear the connection effect between round pin cover 4, the arc lagging 3.
Further, in order to increase the contact area between the reinforcement and the cotter 4 and thus enhance the reinforcement effect, in the possible embodiments (1) and (2) described above, as shown in fig. 3, the surface of the reinforcement connected to the cotter has a curvature matching the cotter.
Further, in order to strengthen the fixing effect of the arc-shaped sleeve plate 3 on the polished rod short section, as shown in fig. 2 and 4, a semicircular sleeve plate is adopted, and the inner diameter of the arc-shaped sleeve plate is matched with the outer diameter of the polished rod short section.
Further, as shown in fig. 4, an elastic buffer pad 11 is arranged on the inner wall of the arc-shaped sleeve plate 3, and plays a role of elastic buffering, so that vibration and impact generated when the polished rod nipple is reciprocated up and down can be effectively buffered, and the probability of damage of the accurate correction device is reduced.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and shall be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a production well load sensor accurate correcting unit which characterized in that includes: the support plate, the arc-shaped sleeve plate and the pin bushing are arranged on the support plate; be provided with the U-shaped opening in the backup pad, arc lagging sets up perpendicularly in the backup pad, and with the U-shaped open-ended opening direction is unanimous, the radian is the same, it sets up to wear the cotter level keep away from on the arc lagging on the outer wall of the one end of backup pad.
2. The device for accurately correcting the load sensor of the oil production well is characterized in that a reinforcing member is further arranged between the pin penetrating sleeve and the arc-shaped sleeve plate.
3. The device for accurately correcting the load sensor of the oil production well is characterized in that the reinforcing member is a reinforcing plate, the reinforcing plate is vertically arranged on the supporting plate, the side face of the reinforcing plate is connected with the outer wall of the arc-shaped sleeve plate, and the upper end face of the reinforcing plate is connected with the pin bushing.
4. The device for accurately correcting the load sensor of the oil production well according to the claim 2, wherein the reinforcing member is a reinforcing block with a triangular cross section shape, and the reinforcing block simultaneously connects the arc-shaped sleeve plate and the pin bushing.
5. The device for accurately correcting the load sensor of the oil production well is characterized in that the reinforcing member is a reinforcing column, the reinforcing column is obliquely arranged, and two ends of the reinforcing column are respectively connected with the arc-shaped sleeve plate and the pin penetrating sleeve.
6. The device for accurately correcting the load sensor of the oil production well according to the claim 3 or 4, characterized in that the surface of the reinforcing member connected with the pin bushing has a curvature matched with that of the pin bushing.
7. The device for accurately correcting the load sensor of the oil production well according to the claim 1 or 2, wherein the arc-shaped sleeve plate is a semi-circle sleeve plate.
8. The device for accurately correcting the load sensor of the oil production well is characterized in that the inner diameter of the arc-shaped sleeve plate is matched with the outer diameter of the polish rod nipple.
9. The device for accurately correcting the load sensor of the oil production well is characterized in that an elastic cushion pad is arranged on the inner wall of the arc-shaped sleeve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110645214.4A CN113464119A (en) | 2021-06-09 | 2021-06-09 | Accurate correcting unit of oil recovery well load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110645214.4A CN113464119A (en) | 2021-06-09 | 2021-06-09 | Accurate correcting unit of oil recovery well load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113464119A true CN113464119A (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110645214.4A Pending CN113464119A (en) | 2021-06-09 | 2021-06-09 | Accurate correcting unit of oil recovery well load sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113464119A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110185825A1 (en) * | 2010-01-29 | 2011-08-04 | Dan Mackie | Horseshoe load cell |
| CN206957697U (en) * | 2017-05-26 | 2018-02-02 | 中国石油天然气股份有限公司 | The load transducer erection device of oil pumper |
| CN209198192U (en) * | 2018-10-08 | 2019-08-02 | 中国石油天然气股份有限公司 | The safeguard structure of load transducer |
-
2021
- 2021-06-09 CN CN202110645214.4A patent/CN113464119A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110185825A1 (en) * | 2010-01-29 | 2011-08-04 | Dan Mackie | Horseshoe load cell |
| CN206957697U (en) * | 2017-05-26 | 2018-02-02 | 中国石油天然气股份有限公司 | The load transducer erection device of oil pumper |
| CN209198192U (en) * | 2018-10-08 | 2019-08-02 | 中国石油天然气股份有限公司 | The safeguard structure of load transducer |
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