CN114991692A - Composite super-expansion cementing liner hanger - Google Patents
Composite super-expansion cementing liner hanger Download PDFInfo
- Publication number
- CN114991692A CN114991692A CN202210617026.5A CN202210617026A CN114991692A CN 114991692 A CN114991692 A CN 114991692A CN 202210617026 A CN202210617026 A CN 202210617026A CN 114991692 A CN114991692 A CN 114991692A
- Authority
- CN
- China
- Prior art keywords
- liner hanger
- pipe
- fixed
- connector
- sleeve
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 12
- 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
- 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 6
- 150000001875 compounds Chemical class 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 2
- 239000004568 cement Substances 0.000 abstract description 19
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 5
- 238000009434 installation Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 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
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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 cementing liner hanger which comprises a fixed pipe and a sleeve pipe; fixing the 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 connector is the slope structure with the junction inner ring side of fixed pipe, and the inner ring face upper end of connector is the fillet structure, solid fixed ring's outer anchor ring lower extreme is the circumference array and has seted up the fixed slot, the outer anchor ring lower extreme of fixed pipe has cup jointed the connecting pipe, the inner ring side of connecting pipe is the connecting rod that T shape structure was installed to the circumference array, can pour into cement into between the pipeline before to the bottom of solid well liner hanger tentatively fixed, this solid well liner hanger is when pouring into cement into simultaneously, the produced high temperature of usable cement solidification carries out rapid heating to the helium gas bag, make the solidification of cement go on with the inflation of solid well liner hanger in step, and then guarantee the mounting strength and the whole sealed degree of solid well liner hanger.
Description
Technical Field
The invention relates to the technical field of liner hangers, in particular to a composite super-expansion cementing liner hanger.
Background
The liner hanger realizes liner cementing, reduces the casing weight of the deep well in one-time well, improves the system load of a drilling machine during casing running, reduces the flow resistance of the replacement cement slurry, and is favorable for safe construction. By the back connection of the tail pipe, the problem that the drilling operation is influenced due to the abrasion of the upper-layer sleeve can be solved; by using the tail pipe suspension well cementation technology, the using amount of the sleeve can be reduced, and the drilling cost is saved.
However, when the existing cementing liner hanger is used, the existing cementing liner hanger is divided into a cement sheath hanger and a mechanical hanger, but the mechanical hanger has a larger overall dimension, is smaller in annular space with an original casing, and has a throttling effect formed by a plurality of layers of rubber rings, instantaneous high pressure can occur in the process of cementing and cement squeezing of the hanger, so that the problem that cement squeezing of a completion liner is not completed, and the hanger begins to expand, so that the use is influenced, and therefore, the composite super-expansion cementing liner hanger is provided.
Disclosure of Invention
The invention aims to overcome the existing defects and provide a composite super-expansion cementing liner hanger, which can preliminarily fix the bottom end of the cementing liner hanger before cement is injected between pipelines, and meanwhile, the cementing liner hanger can rapidly heat a helium gas bag by using high temperature generated by cement solidification while injecting cement, so that the cement solidification and the expansion of the cementing liner hanger are synchronously carried out, the installation strength and the integral sealing degree of the cementing liner hanger are further ensured, and the problems in the background technology can be effectively solved.
In order to achieve the purpose, the invention provides the following technical scheme: the composite super-expansion cementing liner hanger comprises a fixed pipe and a sleeve;
fixing the tube: the upper end of the connecting head is provided with a connecting head, the inner diameter of the connecting head is larger than that of the fixed pipe, the inner ring side of the connecting part of the connecting head and the fixed pipe is of an inclined structure, the upper end of the inner ring surface of the connecting head is of a round angle structure, the lower end of the outer ring surface of the fixed ring is provided with a fixed groove in a circumferential array manner, 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 connecting rods of a T-shaped structure in a circumferential array manner, the connecting rods are correspondingly clamped with the fixed groove formed in the outer ring surface of the fixed pipe, the lower end of the fixed pipe is provided with jacks in a linear array manner, the jacks formed in the lower end of the fixed pipe are internally connected with side push plates of a T-shaped structure in a sliding manner, and the upper sides of the inner side ends of the side push plates are of inclined structures;
sleeving a sleeve: the middle part of the outer ring surface of the sleeve is sleeved with the fixing ring, the middle part of the outer ring surface of the sleeve is provided with an annular groove, the inner part of the annular groove arranged in the middle part of the outer ring surface of the sleeve is clamped with an air bag with an annular structure, helium is filled in the air bag, the outer ring 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 inner part of the annular groove arranged in the outer ring surface of the sleeve.
Furthermore, the outer ring surface of the connecting pipe is a linear array and is provided with an anti-skidding groove with a triangular structure, and the inside of the connecting pipe is embedded with reinforcing steel wires in a linear array. The antiskid groove that the outer anchor ring of connecting pipe was seted up can make the installation of well cementation liner hanger more stable, and the reinforcing steel wire that the inside institute of connecting pipe was inlayed can effectively prevent that the connecting pipe from appearing breaking and influencing its fixed to well cementation liner hanger simultaneously, and then makes the use of well cementation liner hanger safer and convenient.
Furthermore, the outer ring surface of the rubber plate is in a linear array and is provided with a slot, and an anti-slip gasket is clamped inside the slot formed in the outer ring surface of the rubber plate. The antiskid gasket arranged on the outer annular surface of the rubber plate can effectively avoid the phenomenon of sliding after the cementing liner hanger is installed, so that the fixed liner hanger is safer and more convenient to use.
Further, still include the heat conduction copper, the mounting groove of loop configuration is seted up to the interior anchor ring upper end of fixed pipe, and the inside joint of the mounting groove that the interior anchor ring upper end of fixed pipe was seted up has the heat conduction copper, and the sleeve pipe that the outer loop side of heat conduction copper and fixed pipe set up corresponds each other. The heat conduction copper that sets up can lead to the sleeve pipe fast to the heat that absorbs in the fixed liner hanger to guarantee that the air pocket can heat fast, and then make the use of cementing liner hanger more convenient.
Further, still include the go-between, the upper end of connector is the circumference array and is provided with the spliced pole, and the top fixedly connected with go-between of spliced pole, and the surperficial edge of go-between is the fillet structure. The staff can articulate outside haulage rope through the go-between, and then makes the installation and the dismantlement of well cementation liner hanger more convenient.
Compared with the prior art, the invention has the beneficial effects that: this compound super inflation cementing liner hanger has following benefit:
1. can carry out preliminary fixed to the bottom of cementing liner hanger before injecting into cement between the pipeline, this cementing liner hanger is when injecting into cement simultaneously, and usable cement solidifies produced high temperature and carries out rapid heating to the helium gas bag, makes the solidification of cement go on in step with the inflation of cementing liner hanger, and then guarantees the installation strength and the whole sealing degree of cementing liner hanger.
2. The antiskid groove that the outer anchor ring of connecting pipe was seted up can make the installation of well cementation liner hanger more stable, and the reinforcing steel wire that the inside institute of connecting pipe was inlayed can effectively prevent that the connecting pipe from appearing breaking and influencing its fixed to well cementation liner hanger simultaneously, and then makes the use of well cementation liner hanger safer and convenient.
3. The antiskid gasket arranged on the outer annular surface of the rubber plate can effectively avoid the phenomenon of sliding after the cementing liner hanger is installed, so that the fixed liner hanger is safer and more convenient to use.
4. The heat conduction copper that sets up can lead to the sleeve pipe fast to the heat that absorbs in the fixed liner hanger to guarantee that the air pocket can heat fast, and then make the use of cementing liner hanger more convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front cross-sectional view of the present invention;
FIG. 3 is a schematic top sectional view of the present invention.
In the figure: the device comprises a fixing pipe 1, a connector 2, a heat-conducting copper plate 3, a sleeve 4, an air bag 5, a rubber plate 6, a connecting pipe 7, a connecting rod 8, a side push plate 9 and a connecting ring 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a technical solution: the composite super-expansion cementing liner hanger comprises a fixed pipe 1 and a casing pipe 4;
fixing the tube 1: the upper end of the connecting head 2 is provided with the connecting head 2, the inner diameter of the connecting head 2 is larger than that of the fixed pipe 1, the inner ring side of the connecting part of the connecting head 2 and the fixed pipe 1 is of an inclined structure, the upper end of the inner ring surface of the connecting head 2 is of a round angle structure, the lower end of the outer ring surface of the fixed ring 1 is provided with a fixed groove in a circumferential array mode, 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 connecting rods 8 in a T-shaped structure in a circumferential array mode, the connecting rods 8 are correspondingly clamped with the fixed grooves formed in the outer ring surface of the fixed pipe 1, the lower end of the fixed pipe 1 is provided with jacks in a linear array mode, the insides of the jacks formed in the lower end of the fixed pipe 1 are connected with side push plates 9 in a T-shaped structure in a sliding mode, and the upper sides of the inner side push plates 9 are of inclined structures;
and (4) casing pipe: the gas bag is sleeved in the middle of the outer annular surface of the fixing ring 1, an annular groove is formed in the middle of the outer annular surface of the sleeve 4, a gas bag 5 with an annular structure is clamped inside the annular groove formed in the middle of the outer annular surface of the sleeve 4, helium is filled inside the gas bag 5, a rubber plate 6 is attached to the outer annular surface of the gas bag 5, and the upper end face and the lower end face of the rubber plate 6 are respectively in contact with the upper side face and the lower side face of the inside of the annular groove formed in the outer annular surface of the sleeve 4.
In this embodiment, the outer annular surface of the connecting pipe 7 is a linear array and is provided with the anti-slip groove with a triangular structure, and the inside of the connecting pipe 7 is a linear array and is embedded with the reinforcing steel wire. The antiskid groove that the outer anchor ring of connecting pipe 7 was seted up can make the installation of well cementation liner hanger more stable, and the reinforcing steel wire that the inside institute of connecting pipe 7 was inlayed can effectively prevent connecting pipe 7 from appearing breaking and influencing its fixed to well cementation liner hanger simultaneously, and then makes the use of well cementation liner hanger safer and convenient.
In this embodiment, the outer annular surface of the rubber plate 6 is provided with slots in a linear array, and the inner portion of the slot provided on the outer annular surface of the rubber plate 6 is clamped with an anti-slip gasket. The antiskid gasket arranged on the outer annular surface of the rubber plate 6 can effectively avoid the phenomenon of sliding after the cementing liner hanger is installed, so that the fixed liner hanger is safer and more convenient to use.
In this embodiment, still include heat conduction copper 3, the mounting groove of cyclic annular structure is seted up to the interior anchor ring upper end of fixed pipe 1, and the inside joint of the mounting groove that the interior anchor ring upper end of fixed pipe 1 was seted up has heat conduction copper 3, and heat conduction copper 3 corresponds each other with sleeve pipe 4 that the outer loop side of fixed pipe 1 set up. The heat conduction copper 3 that sets up can lead to sleeve pipe 4 fast to the heat that absorbs in the fixed liner hanger to guarantee that air pocket 5 can heat fast, and then make the use of cementing liner hanger more convenient.
In this embodiment, the connector further includes a connecting ring 10, the upper end of the connector 2 is provided with connecting columns in a circumferential array, the connecting ring 10 is fixedly connected to the top ends of the connecting columns, and the surface corners of the connecting ring 10 are all in a round angle structure. The staff can articulate outside haulage rope through go-between 10, and then makes the installation and the dismantlement of cementing liner hanger more convenient.
The working principle of the composite super-expansion cementing liner hanger provided by the invention is as follows: the cementing liner hanger is hoisted to a proper position through an external rope, then an 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 push plate 9 is pushed outwards, the side push plate 9 pushes the connecting pipe 7 outwards, and then the fixation of the lower end of the cementing liner hanger is completed, after the primary fixation of the lower end of the cementing liner hanger is completed, quick setting cement can be injected into the outer ring side of the external pipeline, a large amount of heat can be generated when the quick setting cement is solidified, the generated heat is transmitted to the air bag 5 through the external pipeline, the fixed pipe 1 and the heat conducting copper plate 3, helium inside 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 by the volume increase of the air bag 5, the middle part of the cementing liner hanger is expanded, and the expansion of the cementing liner hanger and the solidification of the cement are performed synchronously, the installation strength of the cementing liner hanger can be guaranteed, the sealing performance after the cementing liner hanger is installed can be guaranteed, the expansion strength of the air bag 5 can be guaranteed by heat generated by friction between fluid and a pipeline when the external pipeline is used, and the cementing liner hanger is safer to use.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (5)
1. Compound super inflation cementing liner hanger which characterized in that: comprises a fixed tube (1) and a sleeve (4);
fixed tube (1): the upper end is provided with a connector (2), the inner diameter of the connector (2) is larger than that 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 angle structure, the lower end of the outer ring surface of the fixing ring (1) is provided with fixing grooves in a circumferential array manner, the lower end of the outer ring surface of the fixing pipe (1) is sleeved with a connecting pipe (7), connecting rods (8) of T-shaped structures are arranged on the inner ring side of the connecting pipe (7) in a circumferential array manner, the connecting rod (8) is correspondingly clamped with a fixing groove formed in the outer ring surface of the fixing pipe (1), jacks are formed in the lower end of the fixing pipe (1) in a linear array mode, a side push plate (9) of a T-shaped structure is connected inside the jacks formed in the lower end of the fixing pipe (1) in a sliding mode, and the upper side of the inner side end of the side push plate (9) is of an inclined structure;
sleeve (4): the gas bag type gas-liquid separation device is characterized in that the gas bag type gas-liquid separation device is sleeved in the middle of the outer annular surface of the fixing ring (1), an annular groove is formed in the middle of the outer annular surface of the sleeve (4), a gas bag (5) of an annular structure is clamped inside the annular groove formed in the middle of the outer annular surface of the sleeve (4), helium is filled in the gas bag (5), a rubber plate (6) is attached to the outer annular surface of the gas bag (5), and the upper end face and the lower end face of the rubber plate (6) are respectively in contact with the upper side face and the lower side face of the inside of the annular groove formed in the outer annular surface of the sleeve (4).
2. The composite super-expansive cementing liner hanger defined in claim 1, wherein: the outer ring surface of the connecting pipe (7) is in a linear array shape and is provided with an anti-skidding groove with a triangular structure, and the inside of the connecting pipe (7) is in a linear array shape and is inlaid with a reinforcing steel wire.
3. The composite super-expansive cementing liner hanger defined in claim 1, wherein: the outer ring surface of the rubber plate (6) is in a linear array and is provided with grooves, 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-expansive cementing liner hanger defined in claim 1, wherein: still include heat conduction copper (3), the mounting groove of cyclic annular structure is seted up to the interior anchor ring upper end of fixed pipe (1), and the inside joint of the mounting groove of seting up of the interior anchor ring upper end of fixed pipe (1) has heat conduction copper (3), and sleeve pipe (4) that outer loop side of just heat conduction copper (3) and fixed pipe (1) set up correspond each other.
5. The composite super-expansive cementing liner hanger according to claim 1, wherein: still include go-between (10), the upper end of connector (2) is the circumference array and is provided with the spliced pole, and the top fixedly connected with go-between (10) of spliced pole, and the surface edge 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 |
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| Publication Number | Publication Date |
|---|---|
| CN114991692A true CN114991692A (en) | 2022-09-02 |
| CN114991692B CN114991692B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| US5181570A (en) * | 1984-05-10 | 1993-01-26 | Mwl Tool Company | Liner hanger assembly |
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| Publication number | Publication date |
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| CN114991692B (en) | 2024-01-16 |
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