CN114991692B - Composite super-expansion well cementation liner hanger - Google Patents
Composite super-expansion well cementation liner hanger Download PDFInfo
- Publication number
- CN114991692B CN114991692B CN202210617026.5A CN202210617026A CN114991692B CN 114991692 B CN114991692 B CN 114991692B CN 202210617026 A CN202210617026 A CN 202210617026A CN 114991692 B CN114991692 B CN 114991692B
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- China
- Prior art keywords
- liner hanger
- fixed pipe
- pipe
- connector
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000001307 helium Substances 0.000 claims abstract description 7
- 229910052734 helium Inorganic materials 0.000 claims abstract description 7
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a composite super-expansion well cementation liner hanger, which comprises a fixed pipe and a sleeve; fixing tube: the upper end is provided with the connector, and the internal diameter of connector is greater than the internal diameter of fixed pipe, the junction inlayer side of connector and fixed pipe is the slope structure, and the interior anchor ring upper end of connector is round corner structure, the fixed slot has been seted up to the outer annular lower extreme of fixed ring be circumference array, the connecting pipe has been cup jointed to the outer annular lower extreme of fixed pipe, the inlayer side of connecting pipe is circumference array and installs the connecting rod of T shape structure, can be preliminary fixed to the bottom of well cementation liner hanger before injecting cement between the pipeline, this well cementation liner hanger is when injecting cement simultaneously, the high temperature that usable cement set produced carries out the rapid heating to the helium package, make the setting of cement go on with the inflation synchronization of well cementation liner hanger, and then guarantee the installation intensity and the whole degree of sealing of well cementation liner hanger.
Description
Technical Field
The invention relates to the technical field of liner hangers, in particular to a composite super-expansion well cementation liner hanger.
Background
The liner cementing is realized through the liner hanger, the weight of the sleeve of the deep well for one-time well descending is reduced, the load of a drilling machine lifting system during the sleeve descending is improved, the flowing resistance of the injected cement paste is reduced, and the safe construction is facilitated. The problem that drilling operation is affected due to abrasion of an upper casing can be solved through tail pipe tie-back; the liner suspension well cementation technology is used, so that the sleeve consumption can be reduced, and the drilling cost can be saved.
However, when the conventional well cementation liner hanger is used, the conventional well cementation liner hanger is divided into cement ring hanging and mechanical hanging, but the mechanical hanging has the problems that the external dimension of the hanger is large, the annulus between the hanger and the original sleeve is small, a throttling effect is formed by a plurality of layers of rubber rings, instantaneous high pressure can occur in the process of well cementation and cement extrusion, the completion liner is not finished and cement extrusion is caused, and the hanger is expanded to influence the use, so that the composite super-expansion well cementation liner hanger is proposed.
Disclosure of Invention
The invention aims to overcome the existing defects, provides the composite super-expansion well cementation liner hanger, can initially fix the bottom end of the well cementation liner hanger before cement is injected between pipelines, can rapidly heat a helium gas bag by utilizing high temperature generated by cement solidification while the cement is injected, ensures that the cement solidification and the expansion of the well cementation liner hanger are synchronously carried out, further ensures the installation strength and the integral sealing degree of the well cementation liner hanger, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the composite super-expansion well cementation liner hanger comprises a fixed pipe and a sleeve;
fixing tube: the upper end is provided with a connector, the inner diameter of the connector is larger than that of the fixed pipe, the inner ring side of the joint of the connector and the fixed pipe is of an inclined structure, the upper end of the inner ring surface of the connector is of a round corner structure, the lower end of the outer ring surface of the fixed pipe is provided with a fixed groove in a circumferential array, the lower end of the outer ring surface of the fixed pipe is sleeved with a connecting pipe, the inner ring side of the connecting pipe is provided with a connecting rod of a T-shaped structure in a circumferential array, the connecting rod is correspondingly clamped with the fixed groove provided with the outer ring surface of the fixed pipe, the lower end of the fixed pipe is provided with an inserting hole in a linear array, the inner part of the inserting hole provided with the lower end of the fixed pipe is slidably connected with a side pushing plate of the T-shaped structure, and the upper side of the inner side end of the side pushing plate is of the inclined structure;
sleeve pipe: the sleeve is sleeved at the middle part of the outer annular surface of the fixed pipe, the middle part of the outer annular surface of the sleeve is provided with an annular groove, the inside of the annular groove provided at the middle part of the outer annular surface of the sleeve is clamped with an air bag of an annular structure, helium is filled in the air bag, the outer annular surface of the air bag is attached with a rubber plate, and the upper end surface and the lower end surface of the rubber plate are respectively contacted with the upper side surface and the lower side surface of the inside of the annular groove provided at the outer annular surface of the sleeve.
Furthermore, the outer ring of the connecting pipe is provided with triangular anti-skid grooves in a linear array, and reinforcing steel wires are embedded in the connecting pipe in a linear array. The anti-skid groove formed in the outer ring surface of the connecting pipe can enable the installation of the well cementing liner hanger to be more stable, meanwhile, the reinforced steel wires inlaid in the connecting pipe can effectively prevent the connecting pipe from being broken to influence the fixation of the connecting pipe to the well cementing liner hanger, and further the well cementing liner hanger is safer and more convenient to use.
Further, the outer ring surface of the rubber plate is provided with grooves in a linear array, and the inner parts of the grooves formed in the outer ring surface of the rubber plate are clamped with anti-slip gaskets. The anti-slip gasket arranged on the outer ring surface of the rubber plate can effectively avoid the phenomenon of sliding after the well cementation liner hanger is installed, so that the fixed liner hanger is safer and more convenient to use.
Further, still include the heat conduction copper, annular structure's mounting groove has been seted up to the interior anchor ring upper end of fixed pipe, and the inside joint of the mounting groove of seting up of interior anchor ring upper end of fixed pipe has the heat conduction copper, and the sleeve pipe that the heat conduction copper and the outer ring side of fixed pipe set up corresponds each other. The heat conduction copper plate that sets up can be to the quick direction to the sleeve pipe of absorbing heat in the fixed liner hanger to guarantee that the air pocket can heat fast, and then make the use of well cementation liner hanger more convenient.
Further, still include the go-between, the upper end of connector is circumference array and is provided with the spliced pole, and the top fixedly connected with go-between of spliced pole, and go-between's surface corner is fillet structure. The staff can hang the outside haulage rope through the go-between, and then make well cementation liner hanger's installation and dismantlement more convenient.
Compared with the prior art, the invention has the beneficial effects that: the composite super-expansion well cementation liner hanger has the following advantages:
1. the bottom end of the well cementation liner hanger can be initially fixed before cement is injected between pipelines, and meanwhile, the well cementation liner hanger can utilize high temperature generated by cement solidification to rapidly heat a helium gas bag when cement is injected, so that the cement solidification and the expansion of the well cementation liner hanger are synchronously carried out, and the installation strength and the integral sealing degree of the well cementation liner hanger are further ensured.
2. The anti-skid groove formed in the outer ring surface of the connecting pipe can enable the installation of the well cementing liner hanger to be more stable, meanwhile, the reinforced steel wires inlaid in the connecting pipe can effectively prevent the connecting pipe from being broken to influence the fixation of the connecting pipe to the well cementing liner hanger, and further the well cementing liner hanger is safer and more convenient to use.
3. The anti-slip gasket arranged on the outer ring surface of the rubber plate can effectively avoid the phenomenon of sliding after the well cementation liner hanger is installed, so that the fixed liner hanger is safer and more convenient to use.
4. The heat conduction copper plate that sets up can be to the quick direction to the sleeve pipe of absorbing heat in the fixed liner hanger to guarantee that the air pocket can heat fast, and then make the use of well cementation liner hanger more convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 3 is a schematic top sectional view of the present invention.
In the figure: 1 fixing tube, 2 connector, 3 heat conduction copper plate, 4 sleeve pipe, 5 air pocket, 6 rubber slab, 7 connecting tube, 8 connecting rod, 9 side push pedal, 10 go-between.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present embodiment provides a technical solution: the composite super-expansion well cementation liner hanger comprises a fixed pipe 1 and a sleeve 4;
fixing tube 1: the upper end is provided with a connector 2, the inner diameter of the connector 2 is larger than the inner diameter of a fixed pipe 1, the inner ring side of the joint of the connector 2 and the fixed pipe 1 is of an inclined structure, the upper end of the inner ring surface of the connector 2 is of a round corner structure, the lower end of the outer ring surface of the fixed pipe 1 is provided with a fixed groove in a circumferential array, the lower end of the outer ring surface of the fixed pipe 1 is sleeved with a connecting pipe 7, the inner ring side of the connecting pipe 7 is provided with a connecting rod 8 of a T-shaped structure in a circumferential array, the connecting rod 8 is correspondingly clamped with the fixed groove provided on the outer ring surface of the fixed pipe 1, the lower end of the fixed pipe 1 is provided with a jack in a linear array, the inner part of the jack provided on the lower end of the fixed pipe 1 is slidingly connected with a side pushing plate 9 of a T-shaped structure, and the upper side of the inner side end of the side pushing plate 9 is of the inclined structure;
sleeve 4: the sleeve is sleeved at the middle part of the outer annular surface of the fixed pipe 1, an annular groove is formed in the middle part of the outer annular surface of the sleeve 4, an air bag 5 of an annular structure is clamped in the annular groove formed in the middle part of the outer annular surface of the sleeve 4, helium is filled in the air bag 5, the outer annular surface of the air bag 5 is attached with a rubber plate 6, and the upper end surface and the lower end surface of the rubber plate 6 are respectively contacted with the upper side surface and the lower side surface of the inner part of the annular groove formed in the outer annular surface of the sleeve 4.
In this embodiment, the outer ring of the connecting pipe 7 is provided with triangular anti-slip grooves in a linear array, and the inside of the connecting pipe 7 is embedded with reinforcing steel wires in a linear array. The anti-skid groove formed in the outer ring surface of the connecting pipe 7 can enable the installation of the well cementation liner hanger to be more stable, and meanwhile, the reinforced steel wires embedded in the connecting pipe 7 can effectively prevent the connecting pipe 7 from being broken to influence the fixation of the connecting pipe to the well cementation liner hanger, so that the well cementation liner hanger is safer and more convenient to use.
In this embodiment, the outer ring surface of the rubber plate 6 is provided with grooves in a linear array, and the inside of the grooves provided in the outer ring surface of the rubber plate 6 is clamped with an anti-slip gasket. The anti-slip gasket arranged on the outer ring surface of the rubber plate 6 can effectively avoid the phenomenon of sliding after the well cementation liner hanger is installed, so that the fixed liner hanger is safer and more convenient to use.
In this embodiment, the heat conducting device further comprises a heat conducting copper plate 3, the upper end of the inner ring surface of the fixed tube 1 is provided with a mounting groove with an annular structure, the inside of the mounting groove provided at the upper end of the inner ring surface of the fixed tube 1 is clamped with the heat conducting copper plate 3, and the heat conducting copper plate 3 corresponds to a sleeve 4 arranged at the outer ring side of the fixed tube 1. The heat conduction copper plate 3 that sets up can be to the quick direction to sleeve pipe 4 of the heat that absorbs in the fixed liner hanger to guarantee that air pocket 5 can heat fast, and then make the use of well cementation liner hanger more convenient.
In this embodiment, still include go-between 10, the upper end of connector 2 is circumference array and is provided with the spliced pole, and the top fixedly connected with go-between 10 of spliced pole, and the surperficial corner department of go-between 10 is the fillet structure. The staff can hang the outside haulage rope through go-between 10, and then make well cementation liner hanger's installation and dismantlement more convenient.
The working principle of the composite super-expansion well cementation liner hanger provided by the invention is as follows: the external pipeline is inserted into the connector 2 and the fixed pipe 1, the side push plate 9 is pushed outwards when the external pipeline is inserted into the fixed pipe 1, the side push plate 9 pushes the connecting pipe 7 outwards, the lower end of the well liner hanger is fixed, quick setting cement can be injected into the outer annular side of the external pipeline after the lower end of the well liner hanger is initially fixed, a large amount of heat can be generated during solidification of the quick setting cement, the generated heat is transmitted to the air bag 5 through the transmission of the external pipeline, the fixed pipe 1 and the heat conducting copper plate 3, the air bag 5 is heated and expanded, the volume of the air bag 5 is increased, the rubber plate 6 is pushed outwards by the volume increase of the air bag 5, the middle of the well liner hanger is further expanded, the expansion of the well liner hanger and the solidification of cement are synchronously carried out, the installation strength of the well liner hanger can be guaranteed, the tightness of the well liner hanger is guaranteed, and the expansion strength of the air bag 5 can be guaranteed through the heat generated through friction between fluid and the pipeline when the external pipeline is used, so that the well liner hanger is safer to use.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (5)
1. The composite super-expansion well cementation liner hanger is characterized in that: comprises a fixed pipe (1) and a sleeve (4);
fixed pipe (1): the upper end is provided with a connector (2), the inner diameter of the connector (2) is larger than the inner diameter of the fixed pipe (1), the inner ring side of the joint of the connector (2) and the fixed pipe (1) is of an inclined structure, the upper end of the inner ring surface of the connector (2) is of a round corner structure, the lower end of the outer ring surface of the fixed pipe (1) is provided with a fixed groove in a circumferential array, the lower end of the outer ring surface of the fixed pipe (1) is sleeved with a connecting pipe (7), the inner ring side of the connecting pipe (7) is provided with a connecting rod (8) of a T-shaped structure in a circumferential array, the connecting rod (8) is correspondingly clamped with the fixed groove provided with the outer ring surface of the fixed pipe (1), the lower end of the fixed pipe (1) is provided with an inserting hole in a linear array, the inner part of the inserting hole provided with a side pushing plate (9) of the T-shaped structure is in a sliding manner, and the upper side of the inner side end of the side pushing plate (9) is of the inclined structure;
sleeve (4): the device is sleeved at the middle part of the outer annular surface of the fixed pipe (1), an annular groove is formed in the middle part of the outer annular surface of the sleeve (4), an air bag (5) with an annular structure is clamped in the annular groove formed in the middle part of the outer annular surface of the sleeve (4), helium is filled in the air bag (5), a rubber plate (6) is attached to the outer annular surface of the air bag (5), and the upper end surface and the lower end surface of the rubber plate (6) are respectively contacted with the upper side surface and the lower side surface of the inner part of the annular groove formed in the outer annular surface of the sleeve (4);
the fixing method of the liner hanger comprises the following steps: the external pipeline is inserted into the connector (2) and the fixed pipe (1), when the external pipeline is inserted into the fixed pipe (1), the side pushing plate (9) is pushed outwards by the connecting pipe (7), and then the fixing of the lower end of the well liner hanger is completed, after the preliminary fixing of the lower end of the well liner hanger is completed, quick setting cement is injected into the outer ring side of the external pipeline, a large amount of heat is generated when the quick setting cement is solidified, the generated heat is transmitted to the air bag (5) through the external pipeline and the transmission of the fixed pipe (1), helium in the air bag (5) is heated and expanded, so that the volume of the air bag (5) is increased, the rubber plate (6) is pushed outwards, and then the middle part of the well liner hanger is expanded, and the installation strength and the whole sealing degree of the well liner hanger are ensured.
2. The composite super expansion well cementing liner hanger of claim 1, wherein: the outer ring of the connecting pipe (7) is provided with triangular anti-slip grooves in a linear array, and reinforcing steel wires are embedded in the connecting pipe (7) in a linear array.
3. The composite super expansion well cementing liner hanger of claim 1, wherein: the outer ring surface of the rubber plate (6) is provided with grooves in a linear array, and the inner parts of the grooves formed in the outer ring surface of the rubber plate (6) are clamped with anti-slip gaskets.
4. The composite super expansion well cementing liner hanger of claim 1, wherein: still include heat conduction copper (3), annular structure's mounting groove has been seted up to the interior anchor ring upper end of fixed pipe (1), the inside joint of the mounting groove of seting up of the interior anchor ring upper end of fixed pipe (1) heat conduction copper (3), and heat conduction copper (3) correspond each other with sleeve pipe (4) that the outer ring side of fixed pipe (1) set up.
5. The composite super expansion well cementing liner hanger of claim 1, wherein: still include go-between (10), the upper end of connector (2) is circumference array and is provided with spliced pole, and the top fixedly connected with go-between (10) of spliced pole, and the surface corner department of go-between (10) is the fillet structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210617026.5A CN114991692B (en) | 2022-06-01 | 2022-06-01 | Composite super-expansion well cementation liner hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210617026.5A CN114991692B (en) | 2022-06-01 | 2022-06-01 | Composite super-expansion well cementation liner hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114991692A CN114991692A (en) | 2022-09-02 |
| CN114991692B true CN114991692B (en) | 2024-01-16 |
Family
ID=83030442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210617026.5A Active CN114991692B (en) | 2022-06-01 | 2022-06-01 | Composite super-expansion well cementation liner hanger |
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| CN (1) | CN114991692B (en) |
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| Publication number | Publication date |
|---|---|
| CN114991692A (en) | 2022-09-02 |
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