CN220101206U - Safe unhooking joint and glass fiber reinforced plastic oil pipe water injection pipe column - Google Patents
Safe unhooking joint and glass fiber reinforced plastic oil pipe water injection pipe column Download PDFInfo
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- CN220101206U CN220101206U CN202320816411.2U CN202320816411U CN220101206U CN 220101206 U CN220101206 U CN 220101206U CN 202320816411 U CN202320816411 U CN 202320816411U CN 220101206 U CN220101206 U CN 220101206U
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- outer sleeve
- joint
- upper outer
- mandrel
- groove
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 230000007797 corrosion Effects 0.000 claims abstract description 27
- 238000005260 corrosion Methods 0.000 claims abstract description 27
- 239000011521 glass Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000935974 Paralichthys dentatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
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Abstract
The utility model provides a safe hand-off joint and a glass fiber reinforced plastic oil pipe water injection pipe column, which are characterized in that: the device comprises a mandrel, an upper joint, a lower joint, an upper outer sleeve and a lower outer sleeve, wherein the upper joint and the lower joint are connected to the upper end and the lower end of the mandrel, the upper outer sleeve and the lower outer sleeve are sleeved outside the mandrel, the upper outer sleeve and the lower outer sleeve are connected through release pieces, the lower outer sleeve is sleeved on the upper outer sleeve and the lower joint, the lower outer sleeve is connected with the lower joint through corrosion fasteners, and a through-flow groove communicated with the corrosion fasteners is formed in the lower joint. In the utility model, the release bolt and the corrosion pin bear the weight of the pipe column and the tool under the joint stress, and the release load can be reduced after the corrosion pin is corroded, so that the release bolt is lifted and broken on a conventional working machine, the upper pipe column is conveniently lifted, the damage to the upper oil pipe is reduced, and the glass oil pipe water injection pipe column is particularly suitable for glass oil pipe water injection pipe columns. The upper outer sleeve and the lower joint of the safe release joint are provided with concave-convex grooves, and torque can be transmitted after the concave-convex grooves are meshed with each other. The mandrel adopts industry standard inside and outside diameter sizes, and is convenient for the butt joint of conventional fishing tools to realize fishing.
Description
Technical Field
The utility model relates to a safe unhooking joint and a glass fiber reinforced plastic oil pipe water injection pipe column, which are suitable for water injection operation in the field of oil fields, in particular to a glass fiber reinforced plastic oil pipe water injection pipe column.
Background
With the popularization of the glass fiber reinforced plastic oil pipe in the oilfield water injection pipe column, the accident rate caused by the corrosion perforation and overhaul clamp of the oil pipe is obviously reduced. The corrosion resistance of the glass fiber reinforced plastic oil pipe is superior to that of a common steel oil pipe, but the strength is low; once the water injection pipe column of the glass fiber reinforced plastic oil pipe is broken when meeting a clamp, the conventional well repair construction is extremely difficult to process, the overhaul operation cost is high, the period is long, and a certain damage can be generated to a shaft. The concrete steps are as follows:
(1) The glass fiber reinforced plastic oil pipe is made of glass fiber materials, the broken section is irregular, and a fishing tool is extremely difficult to enter the inside of the pipe column.
(2) The glass fiber reinforced plastic oil pipe has low surface hardness, and the fluke of the fishing tool is easy to slip after being grasped.
Therefore, a safe hand-off connector with simple structure and powerful function is required to be designed, and smooth lifting and salvaging of the glass fiber reinforced plastic oil pipe water injection pipe column are ensured.
Disclosure of Invention
The utility model aims to solve the technical problems of providing a safe unhooking joint and a glass fiber reinforced plastic oil pipe water injection pipe column which are convenient to apply, simple in structure and powerful in function, and the glass fiber reinforced plastic oil pipe water injection pipe column is ensured to be smoothly lifted out and salvaged.
The utility model adopts the technical scheme that: a safe unhooking joint, characterized in that: the device comprises a mandrel, an upper joint, a lower joint, an upper outer sleeve and a lower outer sleeve, wherein the upper joint and the lower joint are connected to the upper end and the lower end of the mandrel, the upper outer sleeve and the lower outer sleeve are sleeved outside the mandrel, the upper outer sleeve and the lower outer sleeve are connected through release pieces, the lower outer sleeve is sleeved on the upper outer sleeve and the lower joint, the lower outer sleeve is connected with the lower joint through corrosion fasteners, and a through-flow groove communicated with the corrosion fasteners is formed in the lower joint.
According to the technical scheme, the upper outer sleeve is sleeved outside the mandrel, a plurality of upper outer sleeve bosses are arranged at the lower end of the upper outer sleeve, a lower joint groove embedded into the lower joint is matched with the upper outer sleeve, an upper outer sleeve groove is arranged at the lower end of the upper outer sleeve, a lower joint groove is arranged at the upper end of the lower joint, and the release piece is arranged in a mounting groove formed by the upper outer sleeve groove and the lower joint groove.
According to the technical scheme, the mounting groove formed by the upper outer sleeve groove and the lower joint groove is an I-shaped groove.
According to the technical scheme, the upper outer sleeve boss and the lower joint groove are respectively provided with at least two along the circumferential direction.
According to the technical scheme, the release parts are symmetrically arranged and at least two release parts are arranged.
According to the technical scheme, the mandrel is made of steel materials, and one end of the mandrel is sleeved at one end of the upper joint and forms sealing fit.
According to the technical scheme, the upper outer sleeve is sleeved at one end of the upper joint and is in sealing connection with the threads through the sealing ring.
According to the technical scheme, a plurality of threaded holes are uniformly distributed on the circumference of the lower outer sleeve and are used for installing corrosion fasteners.
According to the technical scheme, the limiting step of the lower joint is provided with a plurality of through-flow grooves along the axial direction.
The utility model provides a glass steel oil pipe water injection tubular column which characterized in that: the pipe column comprises a glass fiber reinforced plastic oil pipe, a safe unhooking joint, an anchoring tool, a packing tool, a water distributor, a setting tool, a screen pipe and a plug from top to bottom, wherein the safe unhooking joint is the safe unhooking joint, and the safe unhooking joint is arranged at the lowest end of the glass fiber reinforced plastic oil pipe and is used for separating the pipe column from a tool string at the lower end under an emergency condition.
The beneficial effects obtained by the utility model are as follows: 1. the utility model is used in the glass fiber reinforced plastic oil pipe water injection pipe column, and the release piece and the corrosion fastener are adopted to jointly control the tensile load of the pipe column, so that the breaking load can be greatly reduced and the damage to the upper glass fiber reinforced plastic oil pipe can be reduced on the premise of ensuring the safety of the pipe column. The operation is convenient, safe and reliable, and can be widely applied to oil-water well production operation pipe columns. 2. The mandrel provided by the utility model is arranged at the uppermost end of the tubular column left in the shaft, and the mandrel is made of steel materials and has industry standard inner and outer diameter sizes, so that the tubular column is convenient to salvage, and the risk and cost of overhaul operation are reduced.
Drawings
FIG. 1 is a diagram of a pipe string to which the present utility model is applied.
FIG. 2 is a schematic diagram of the structure of the present utility model.
Fig. 3 is a schematic view of a partial structure of the upper outer jacket of the present utility model.
Fig. 4 is a schematic view of the structure of the lower joint of the present utility model.
FIG. 5 is a schematic view of the release plug according to the present utility model.
FIG. 6 is a schematic view of the structure of the present utility model after removal of the hand and remaining in the wellbore.
The reference numerals are explained as follows:
1. the glass fiber reinforced plastic oil pipe, 2, a safe unhooking joint, 3, an anchoring tool, 4, a packing tool, 5, a water distributor, 6, a setting tool, 7, a sieve tube, 8, a plug, 9, an upper joint, 10, a mandrel, 11, an upper jacket, 12, a lower jacket, 13, a release bolt, 14, a corrosion pin, 15, a lower joint, 16, an upper jacket boss, 17, an upper jacket hook groove, 18, a lower joint hook groove, 19, a lower joint groove, 20 and a launder.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The features and properties of a safety break-away joint of the present utility model are described in further detail below in connection with the examples.
The embodiment provides a glass fiber reinforced plastic oil pipe water injection pipe column, which comprises a glass fiber reinforced plastic oil pipe 1, a safe release joint 2, an anchoring tool 3, a packing tool 4, a water distributor 5, a setting tool 6, a screen pipe 7 and a plug 8 from top to bottom as shown in fig. 1. The safety release joint 2 is arranged at the lowest end of the glass fiber reinforced plastic oil pipe 1 and is used for separating a pipe column and a lower end tool string in an emergency.
As shown in fig. 2, this embodiment further provides a safe hand-off joint, which includes a mandrel 10, an upper joint 9 and a lower joint 15 connected to the upper and lower ends of the mandrel 10, and an upper jacket 11 and a lower jacket 12 sleeved outside the mandrel 10, wherein the upper jacket 11 and the lower jacket 15 are connected through a release member, the lower jacket 12 is sleeved on the upper jacket 11 and the lower joint 15, the lower jacket 12 is connected with the lower joint 15 through a corrosion fastener, and a launder 20 communicated with the corrosion fastener is provided on the lower joint.
In this embodiment, the lower end of the upper joint 9 is sleeved on the mandrel 10 and the upper outer sleeve 11 respectively, the lower end of the mandrel 10 is connected with the lower joint 15, the lower outer sleeve 12 is sleeved on the upper outer sleeve 11 and the lower joint 15 simultaneously, the upper end of the lower outer sleeve 12 is connected with the upper outer sleeve 11 by adopting threads, and the circumference of the lower end of the lower outer sleeve 12 is provided with a plurality of threaded holes for installing the corrosion part 14 to be connected with the lower joint 15. In this embodiment, the release member is a release pin 13 and the corrosion member is a corrosion pin 14.
As shown in fig. 3-4, in this embodiment, the lower end of the upper outer sleeve 11 is provided with a plurality of upper outer sleeve bosses 16 and upper outer sleeve hook grooves 17; also, the upper ends of the lower connectors 15 are provided with a plurality of lower connector grooves 19 and lower connector hooking grooves 18. When installed, the boss 16 of the upper housing 11 is inserted into the recess 19 of the lower joint 15 to form an engagement for transmitting torque. At this time, the hook groove 17 of the upper jacket 11 corresponds to the hook groove 18 of the lower joint 15, and both form an i-shaped mounting groove for mounting the release pin 13.
The utility model is arranged at the boundary between the glass fiber reinforced plastic oil pipe string and the downhole tool string, and the tool is arranged as shown in figure 1 and then is put into a shaft for water injection. During running, the release bolt 13 and the corrosion pin 14 bear the weight of the pipe column and the tool together. In the water injection operation, the anchoring tool 2 and the packing tool 3 respectively anchor the pipe column and pack the upper layer and the lower layer, and injected water enters the water injection layer through the glass fiber reinforced plastic oil pipe 1 and the water distributor 5. During this time, the well fluid enters the surrounding of the corrosion spike 14 from the flow-through groove 20 of the lower joint 15, allowing the spike to corrode (corrosion refers to the electrochemical reaction of the spike in the downhole environment causing itself to disappear or the strength to drop below a set point, thereby failing). After the corrosion of the corrosion pin 14 occurs, the corrosion pin may disappear or the strength may be reduced, so that the load which can be borne by the release pin 13 and the corrosion pin together is reduced, and the load is at least smaller than the damage strength of the glass fiber reinforced plastic oil pipe 1.
When the lifting load of the tubular string is greater than the tensile strength of the release bolt 13, the upper casing 11 of the safety release joint is separated from the lower joint 15, the upper joint 9 is separated from the mandrel 10, and the part left in the wellbore is as described in fig. 6. Because the mandrel 10 is made of steel materials, the inner dimension and the outer dimension meet the requirements of the conventional fishing operation in the industry, and the fishing of the residual tool string can be completed by the conventional well repair operation.
The utility model adopts the release bolt and the corrosion pin to jointly control the tensile load of the pipe column, can greatly reduce the breaking load and reduce the damage to the upper glass fiber reinforced plastic oil pipe on the premise of ensuring the safety of the pipe column. The operation is convenient, safe and reliable, and can be widely applied to oil-water well production operation pipe columns.
The embodiments described above are some, but not all embodiments of the utility model. The detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (10)
1. A safe unhooking joint, characterized in that: the device comprises a mandrel, an upper joint, a lower joint, an upper outer sleeve and a lower outer sleeve, wherein the upper joint and the lower joint are connected to the upper end and the lower end of the mandrel, the upper outer sleeve and the lower outer sleeve are sleeved outside the mandrel, the upper outer sleeve and the lower outer sleeve are connected through release pieces, the lower outer sleeve is sleeved on the upper outer sleeve and the lower joint, the lower outer sleeve is connected with the lower joint through corrosion fasteners, and a through-flow groove communicated with the corrosion fasteners is formed in the lower joint.
2. The safety break-away joint according to claim 1, wherein: the upper outer sleeve is sleeved outside the mandrel, a plurality of upper outer sleeve bosses are arranged at the lower end of the upper outer sleeve, a lower joint groove embedded into the lower joint is matched with the upper outer sleeve, an upper outer sleeve groove is arranged at the lower end of the upper outer sleeve, a lower joint groove is arranged at the upper end of the lower joint, and the release piece is arranged in a mounting groove formed by the upper outer sleeve groove and the lower joint groove.
3. The safety break-away joint according to claim 2, wherein: the mounting groove formed by the upper outer sleeve groove and the lower joint groove is an I-shaped groove.
4. A safety slip joint according to claim 1 or 2, wherein: the upper outer sleeve boss and the lower joint groove are respectively provided with at least two along the circumferential direction.
5. A safety slip joint according to claim 1 or 2, wherein: the release parts are symmetrically arranged and at least two release parts are arranged.
6. A safety slip joint according to claim 1 or 2, wherein: the mandrel is made of steel material, and one end of the mandrel is sleeved at one end of the upper joint and forms sealing fit.
7. A safety slip joint according to claim 1 or 2, wherein: the upper outer sleeve is sleeved at one end of the upper joint and is in sealing connection with the threads through a sealing ring.
8. A safety slip joint according to claim 1 or 2, wherein: the circumference of the lower outer sleeve is uniformly provided with a plurality of threaded holes for installing corrosion fasteners.
9. A safety slip joint according to claim 1 or 2, wherein: and the limit step of the lower joint is provided with a plurality of through-flow grooves along the axial direction.
10. The utility model provides a glass steel oil pipe water injection tubular column which characterized in that: the pipe column comprises a glass fiber reinforced plastic oil pipe, a safe hand-off connector, an anchoring tool, a packing tool, a water distributor, a setting tool, a screen pipe and a plug from top to bottom, wherein the safe hand-off connector is the safe hand-off connector according to any one of claims 1-9, and the safe hand-off connector is arranged at the lowest end of the glass fiber reinforced plastic oil pipe and is used for separating the pipe column from a tool string at the lower end in an emergency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320816411.2U CN220101206U (en) | 2023-04-13 | 2023-04-13 | Safe unhooking joint and glass fiber reinforced plastic oil pipe water injection pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320816411.2U CN220101206U (en) | 2023-04-13 | 2023-04-13 | Safe unhooking joint and glass fiber reinforced plastic oil pipe water injection pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220101206U true CN220101206U (en) | 2023-11-28 |
Family
ID=88870341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320816411.2U Active CN220101206U (en) | 2023-04-13 | 2023-04-13 | Safe unhooking joint and glass fiber reinforced plastic oil pipe water injection pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220101206U (en) |
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2023
- 2023-04-13 CN CN202320816411.2U patent/CN220101206U/en active Active
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| GR01 | Patent grant |