CN209761384U - Device for simultaneously completing fishing and sealing operations of submarine oil well - Google Patents
Device for simultaneously completing fishing and sealing operations of submarine oil well Download PDFInfo
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- CN209761384U CN209761384U CN201822138330.3U CN201822138330U CN209761384U CN 209761384 U CN209761384 U CN 209761384U CN 201822138330 U CN201822138330 U CN 201822138330U CN 209761384 U CN209761384 U CN 209761384U
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Abstract
The utility model discloses a device for simultaneously completing the fishing and sealing operations of a submarine oil well, which comprises a mandrel component for transmitting torque and sealing the well; a slip component and a clamping cone component for fishing operation are arranged outside the mandrel component; and a clutch device for converting the working state is arranged between the slip component and the mandrel component. The labor and energy consumption of repeated tripping can be reduced. The problem that oil and gas accumulated in the well for a long time returns out of a well mouth to pollute the sea due to the fact that a well hole cannot be found to directly abandon the well is also avoided, and accidents caused by the fact that ships collide abandoned oil facilities on the seabed in the process of passing through the well can also be prevented. The utility model has the characteristics of simple structure, the cost of manufacture is low, and the operation is reliable.
Description
Technical Field
The utility model relates to a accomplish device of seabed oil well salvage and shut-in operation simultaneously belongs to seabed probing shut-in technical field.
Background
with the development of marine oil exploration and development towards deep water, the protection of human beings on marine environment is increased, and well abandoning operation on waste marine oil facilities is required, and well abandoning operation firstly needs to salvage well mouth facilities and sleeves and guide pipes with certain depth at the middle upper part of a waste well from the well, so that accidents caused by collision of passing ships with the waste petroleum facilities, the sleeves and the guide pipes on the seabed when passing through the well mouth are prevented. And then cement paste is injected into the waste well through grouting equipment to seal the waste well, so that the oil vapor accumulated for a long time in the well is prevented from flowing out of the well mouth to pollute the sea.
The existing surface shut-in operation is usually performed in two steps, the first step is to cut the casing in the well by cutting and fishing equipment, and to fish the casing out of the well together with the tubing outside the casing. And secondly, injecting cement slurry into the waste well by grouting equipment to finish well sealing operation.
Cutting and salvaging equipment used on the ground mostly adopts a cutting knife or a slip of hydraulic system driving equipment. Because the hydraulic driving system requires that the diameter of the water hole cannot be too large, a certain pressure difference can be formed in the drill rod through the section difference in the drill rod so as to ensure the normal work of the cutting and fishing equipment. Because the water holes in the drill rod of the prior device are very small. The water hole is a passage for cement slurry when the water hole is sealed. When the cement slurry passes through a small water hole during well sealing, the cement slurry can be solidified when the cement slurry does not reach the preset depth, so that the cement slurry can not be injected continuously, and the well sealing quality is influenced. Therefore, the existing ground well sealing equipment can only adopt a two-step well sealing mode.
The two-step shut-in mode is not suitable for subsea shut-in operations. When the casing pipe is cut and the casing pipe and the guide pipe are fished out of the waste well, sediment on the sea bottom can bury the well mouth of the waste well quickly, and when well sealing operation needs to be carried out again, the original well mouth is difficult to find. If the drilling platform needs to return to a port to avoid when encountering typhoon or heavy waves, the original wellhead cannot be found after the drilling platform returns, and only the well plugging can be selected to be abandoned. Therefore, oil and gas accumulated in the well for a long time can possibly flow out of the well mouth to pollute the sea.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a accomplish device of seabed oil well salvage and shut-in operation simultaneously, make the device cooperation cutting device, can once bore the completion down and cut off the sleeve pipe, and salvage sleeve pipe and pipe from the well in, when lifting the drilling rod, pour into cement paste into to the well simultaneously, accomplish the shut-in operation, this not only can satisfy seabed shut-in operation requirement, also can improve greatly and improve seabed shut-in operation efficiency, reduce energy consumption, thereby overcome the not enough of prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model discloses a device for simultaneously completing the fishing and sealing operations of a submarine oil well, which comprises a mandrel component for transmitting torque and sealing the well; a slip component and a clamping cone component for fishing operation are arranged outside the mandrel component; and a clutch device for converting the working state is arranged between the slip component and the mandrel component.
In the device, the mandrel component is a hollow component, and cement slurry for well sealing operation is injected into a well from a middle hole of the mandrel component; the mandrel component comprises an upper joint, a middle cylinder and a lower joint which are connected end to end through a rotary step thread from top to bottom; the lower joint is connected with a cutting knife used for cutting the underground casing.
In the device, the slip assemblies are positioned on the outer circular surfaces of the upper joint and the middle cylinder; the slip component comprises a J-shaped groove cylinder, an adjusting cylinder, a connecting sleeve, an elastic sleeve, a centering sleeve and a slip which are in threaded connection from top to bottom; the lower end of the inner circular surface of the J groove cylinder and the lower end of the inner circular surface of the adjusting cylinder are in sliding connection with the outer circular surface of the middle cylinder through a wear-resistant ring; the outer circle of the adjusting cylinder is connected with the righting sleeve through an inner hexagonal socket head cap screw; the lower end of the outer circle of the elastic sleeve is fixedly connected with the slips through the hexagon socket head cap screw.
In the device, the clamping cone assembly is positioned on the outer circular surface of the lower joint and is locked on the lower joint through the elastic check ring for the shaft; the cone clamping assembly comprises a bearing protection sleeve, the lower end of the bearing protection sleeve is rotatably connected with the outer circular surface of the lower joint through a tapered roller bearing and the upper end of the bearing protection sleeve is rotatably connected with the outer circular surface of the lower joint through a wear-resistant ring, and the upper end surface of the bearing protection sleeve is axially and fixedly locked by an elastic retaining ring for a shaft; the outer circle surface of the bearing protection sleeve is fixedly connected with the slip cone through an inner hexagonal socket head cap screw.
In the device, the clutch device comprises a clamping key arranged on the upper joint and a J-shaped groove arranged on the J-shaped groove barrel; when the clamping key is clamped into the J-shaped groove, the mandrel component enables the clamping cone component positioned on the excircle of the lower joint 11 to be separated from the slip component under the action of self weight, and the slip on the slip component contracts inwards to release the underground conduit to be in a non-salvage state; when the clamping key is screwed out of the hook-shaped part in the J-shaped groove by the rotating tool, the drilling tool is lifted to prop open the slips through the slip cone, so that the slips are clamped into the clamping groove of the underground conduit to be in a salvage state.
In the device, more than 3 adjusting grooves for adjusting the height of the positioning ring are arranged on the excircle of the adjusting cylinder of the slip assembly; the adjusting groove is connected with the positioning ring through a fixing pin, and the inner hexagonal socket head cap screw and the inner hexagonal flat end set screw are locked.
In the device, more than 3 uniformly distributed anti-abrasion alloy surfaces are arranged on the positioning ring close to the end surface of the connecting sleeve.
In the device, the threaded connection parts of the J-slot cylinder, the adjusting cylinder, the connecting sleeve and the elastic sleeve are all provided with inner hexagonal flat end fastening screws.
In the device, the front end of the slip is of a cylindrical structure with a boss, and two ends of the boss are provided with guide angles and arc transitions; the shape of the lug boss corresponds to the shape and the size of a clamping groove of the conduit to be salvaged; the slips are series pieces and are selected for use according to the shape and the size of a clamping groove of a conduit to be salvaged; the joint of the slip and the elastic sleeve is provided with a dovetail structure.
In the device, the lower joint and the bearing protective sleeve are both provided with oil holes for filling lubricating oil for the tapered roller bearing, and the orifice of each oil hole is provided with an oil plug assembly; and sealing rings are arranged at the joints of the bearing protective sleeves at the two ends of the tapered roller bearing and the lower joint.
Since the technical scheme is used, the utility model discloses a slips working process adopts card key and the pure mechanical drive mode of J-shaped groove complex to replace prior art's hydraulic drive mode to great expansion the through flow volume of grout passageway, can slow down the setting time of grout in the passageway. Therefore, the cutting device is matched with the cutting and sealing device for the seabed, so that the cutting of the casing of the seabed oil well, the fishing of the casing and the guide pipe and the sealing operation of the oil well can be completed at the same time by one-time drilling. Compared with the prior art, the method solves the technical problems that the seabed sediment buries the well hole after the drill is pulled out, and the previous well hole is difficult to find or the well hole cannot be found when the well is sealed by drilling again. The utility model discloses simple structure, economical and practical, reducible manual work and the energy resource consumption of having tripped the brill repeatedly. The problem that oil and gas accumulated in the well for a long time returns out of a well mouth to pollute the sea due to the fact that a well hole cannot be found to directly abandon the well is also avoided, and accidents caused by the fact that ships collide abandoned oil facilities on the seabed in the process of passing through the well can also be prevented. The utility model has the characteristics of simple structure, the cost of manufacture is low, and the operation is reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the connection structure of the adjusting cylinder and the positioning ring;
FIG. 3 is a bottom view of the retaining ring.
labeled as: 1-upper joint, 2-J groove cylinder, 3-middle cylinder, 4-wear-resistant ring, 5-adjusting cylinder, 6-positioning ring, 7-connecting sleeve, 8-elastic sleeve, 9-righting sleeve, 10-slip, 11-lower joint, 12-bearing protecting sleeve, 13-slip cone, 14-tapered roller bearing, 15-inner hexagonal flat end set screw, 16-fixing pin, 17-inner hexagonal cylindrical head screw, 18-shaft elastic retainer ring, 19-oil blocking assembly, 20-sealing ring, 21-clamping key, 22-J groove and 23-wear-resistant alloy surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The device for simultaneously completing the fishing and well sealing operations of the submarine oil well comprises a mandrel component for transmitting torque and sealing a well, as shown in figures 1 to 3; a slip component and a clamping cone component for fishing operation are arranged outside the mandrel component; and a clutch device for converting the working state is arranged between the slip component and the mandrel component. The mandrel component is a hollow component, and cement slurry for well sealing operation is injected into the well from a middle hole of the mandrel component; the mandrel component comprises an upper joint 1, a middle barrel 3 and a lower joint 11 which are connected end to end through a rotary step thread from top to bottom; the lower sub 11 is connected to a cutter for cutting a downhole casing. The slip assembly is positioned on the outer circular surfaces of the upper joint 1 and the middle cylinder 3; the slip component comprises a J groove cylinder 2, an adjusting cylinder 5, a connecting sleeve 7, an elastic sleeve 8, a centralizing sleeve 9 and a slip 10 which are in threaded connection from top to bottom; the lower end of the inner circular surface of the J groove cylinder 2 and the lower end of the inner circular surface of the adjusting cylinder 5 are in sliding connection with the outer circular surface of the middle cylinder 3 through a wear-resistant ring 4; the excircle of the adjusting cylinder 5 is connected with the righting sleeve 9 through an inner hexagonal socket head cap screw 17; the lower end of the excircle of the elastic sleeve 8 is fixedly connected with the slip 10 through an inner hexagonal socket head cap screw 17. The clamping cone assembly is positioned on the outer circular surface of the lower joint 11 and is locked on the lower joint 11 through a shaft elastic retainer ring 18; the cone clamping assembly comprises a bearing protection sleeve 12, the lower end of the bearing protection sleeve 12 passes through a tapered roller bearing 14, and the upper end of the bearing protection sleeve is rotatably connected with the outer circular surface of the lower joint 11 through a wear-resistant ring 4; the outer circular surface of the bearing protection sleeve 12 is fixedly connected with the slip cone 13 through an inner hexagonal socket head cap screw 17. The clutch device comprises a clamping key 21 arranged on the upper joint 1 and a J-shaped groove 22 arranged on the J-shaped groove barrel 2; when the clamping key 21 is clamped into the J-shaped groove 22, the mandrel component enables the clamping cone component positioned on the excircle of the lower joint 11 to be separated from the slip component under the action of self weight, and the slip 10 on the slip component contracts inwards to release the underground conduit to be in a non-salvage state; when the clamping key 21 is screwed out of the hook-shaped part in the J-shaped groove 22 by a rotating tool, the drilling tool is lifted up to prop open the slip 10 through the slip cone 13, so that the slip 10 is clamped into the clamping groove of the underground conduit to be in a fishing state. More than 3 adjusting grooves for adjusting the height of the positioning ring 6 are arranged on the outer circle of the adjusting cylinder 5 of the slip component; the adjusting groove is connected with the positioning ring 6 through a fixing pin 16, and an inner hexagonal cylindrical head screw 17 is locked with an inner hexagonal flat end set screw 15; the positioning ring 6 is provided with more than 3 evenly distributed anti-abrasion alloy surfaces 23 close to the end surface of the connecting sleeve 7; and the threaded connection parts of the J-shaped groove barrel 2, the adjusting barrel 5, the connecting sleeve 7 and the elastic sleeve 8 are all provided with inner hexagonal flat end set screws 15. The front end of the slip 10 is a cylindrical structure with a boss, and two ends of the boss are provided with guide angles and arc transitions; the shape of the lug boss corresponds to the shape and the size of a clamping groove of the conduit to be salvaged; the slips 10 are a series of pieces and are selected according to the shape and the size of a clamping groove of a conduit to be salvaged; the joint of the slip 10 and the elastic sleeve 8 is provided with a dovetail structure. The lower joint 11 and the bearing protection sleeve 12 are both provided with oil holes for filling lubricating oil for the tapered roller bearing 14, and the orifice of each oil hole is provided with an oil plug assembly 19. Sealing rings 20 are arranged at the joints of the bearing protection sleeves 12 at the two ends of the tapered roller bearing 14 and the lower joint 11.
Examples
The utility model discloses a accomplish submarine oil well simultaneously and salvage and device of well sealing operation, as shown in fig. 1, including the dabber subassembly, the dabber subassembly is by top connection 1, middle section of thick bamboo 3, and lower clutch 11 constitutes, is equipped with card key 21 on the top connection 1, and card key 21 uses with the cooperation of J type groove 22 of J groove section of thick bamboo 2. The mandrel assembly is used for transmitting torque from the surface and transmitting the torque to a cutter at the lower part of the mandrel assembly for cutting a casing in a well. The parts are connected into a whole by adopting the special rotating step threads of the petroleum tool, and the special rotating step threads of the petroleum tool are anti-torque during rotation and tensile during fishing. The mandrel component is a hollow component and can be used as a channel for injecting cement slurry. The underground conduit and the casing pipe are connected into a whole, the device of the embodiment can be tightly clamped in a clamping groove of the conduit pipe by using a slip, the casing pipe is cut off by a cutting knife, and then the casing pipe and the conduit pipe above the cut position are fished out of the well together. The core shaft assembly is sleeved with a slip assembly and a clamping cone assembly, and the slip assembly consists of a J-groove cylinder 2, an adjusting cylinder 5, a positioning ring 6, a connecting sleeve 7, an elastic sleeve 8, a centering sleeve 9 and a slip 10. The wear-resisting ring 4 which plays a supporting and anti-abrasion role and the tapered roller bearing 14 which is coated with lubricating oil and in rolling contact are arranged between the slip assembly, the clamping cone assembly and the mandrel assembly, so that friction between metal and metal is avoided, frictional resistance is reduced, the fact that threads between the mandrel assembly are twisted when the mandrel assembly rotates is guaranteed, no clamping stagnation is caused between the slip assembly, the clamping cone assembly and the mandrel assembly, and the slip assembly, the clamping cone assembly and the mandrel assembly rotate without obstacles. In the slip component, the J groove barrel 2 and the adjusting barrel 5, the adjusting barrel 5 and the connecting sleeve 7, and the connecting sleeve 7 and the elastic sleeve 8 are connected into a whole through threads to form a main body structure of the slip component, and all the connecting threads are provided with inner hexagonal flat end set screws 15 which prevent the threads between the slip components from being stressed and buckled when the mandrel component rotates. More than 3 adjusting grooves are formed in the excircle of the middle of the adjusting cylinder 5, a positioning ring 6 is arranged at the outer part close to the end of the connecting sleeve 7, and the connecting sleeve 7 and the positioning ring 6 are fixed on the adjusting cylinder 5 through an inner hexagonal flat end set screw 15, a fixing pin 16 and an inner hexagonal cylindrical head screw 17. The centralizing sleeve 9 is connected with the connecting sleeve 7 into a whole through an inner hexagonal socket head cap screw 17, the outer diameter of the centralizing sleeve 9 is matched with the inner diameter of the guide pipe, and the device is centralized at the inner wall of the guide pipe.
As shown in fig. 3, the positioning ring 6 is provided with more than 3 evenly distributed anti-abrasion alloy surfaces 23 near the end surface of the connecting sleeve 7, and when the device is used, the anti-abrasion alloy surfaces are located on the upper end surface of the underground conduit. Before the device goes into the well, the position of the device, which needs to be clamped into the clamping groove in the conduit, can be adjusted through the adjusting groove and the positioning ring 6 on the adjusting cylinder 5 according to the working condition. The adjusting method is that the inner hexagonal flat end set screw 15 and the inner hexagonal cylindrical head screw 17 used for connecting the positioning ring 6 and the adjusting cylinder 5 are removed, the fixing pin 16 is punched out for adjustment, and the fixing pin 16 and the screws are installed back after adjustment.
One end of the elastic sleeve 8 is connected with the connecting sleeve 7 through threads and an inner hexagonal flat end set screw 15, and the other end of the elastic sleeve is connected with more than 3 replaceable slips 10 through an inner hexagonal cylindrical head screw 17 and a dovetail structure; the elastic sleeve 7 is a part which is made of grooved elastic materials and has enough elasticity, the slips 10 on the elastic sleeve are of a distinguishing type, more than 3 are distinguished, and the elastic sleeve can be replaced according to the size of a conduit clamping groove; the front end of the slip is a section of smooth cylinder and takes the place of guide angle and circular arc transition, and the slip of this device and the slip of a fishing spear or a fishing barrel commonly used lie in that, the slip of this device is the key-type of light, in the draw-in groove of card income pipe, and conventional slip is for taking the tooth structure to put into the instrument hole that does not have the groove and use. One end of the bearing protection sleeve 12 is provided with a step, an inner hole of the bearing protection sleeve 12 is used for placing a bearing, and the bearing protection sleeve 12 fixes the tapered roller bearing 14 at the upper end of the lower joint 11; the other end of the bearing protection sleeve 12 is provided with a small step with more than 2 screw holes and an excircle step surface of conical surface transition for guiding the slip to enter, and the resolution type slip cone 13 is fixed on the bearing protection sleeve 12 through more than 2 screws on the same axis; the inner hole of the conical end of the bearing protection sleeve 12 is provided with a stepped hole for placing the wear-resistant ring 4 and placing the wear-resistant ring on the lower joint 11, the bearing protection sleeve 12 and the tapered roller bearing 14 are fixed on the lower joint 11 through the elastic retainer ring 18 for the shaft on the outer end face of the wear-resistant ring 4, and the wear-resistant ring 4 and the tapered roller bearing 11 which are contacted with the lower joint 11 ensure that the bearing protection sleeve 2 and other external parts do not rotate when the lower joint 11 of the mandrel component rotates. The lower joint 11 and the bearing protection sleeve 12 are both provided with an oil hole and an oil plug assembly 19 for filling the tapered roller bearing 14 with lubricating oil.
The working principle of the utility model is explained as follows:
The device is connected with a cutting knife for use together, and is used for fishing in the cutting, fishing and cementing processes, and the slips can enter the clamping groove of the guide pipe to clamp the guide pipe after the guide pipe is put into the device. The core shaft assembly rotates in the rotation process of the drill stem, and the slip assembly keeps static, so that the guide pipe can be fished, and the cutting of the cutting knife is not influenced.
A non-salvage state: when the latch 21 of the upper joint 1 is clamped into the hook-shaped part in the J-shaped groove 22 of the J-shaped groove barrel 2, the slips 10 are separated from the slip cone 13.
Salvaging state: when the rotary tool enables the clamping key 21 of the upper joint 1 to be screwed out of the hook-shaped part in the J-shaped groove 22 of the J-shaped groove barrel 2, the drilling tool is lifted upwards, the drilling tool goes upwards, the slip cone 13 enters the slip 10 to prop the slip 10 open, the slip 10 is clamped into the clamping groove of the guide pipe, the mandrel component can rotate freely, the drilling tool can be lifted to salvage the sleeve pipe and the guide sleeve after the lower cutting knife cuts off the sleeve pipe, and cement slurry is poured into the sealing well before or simultaneously.
The existing device is adopted to carry out well sealing operation, at least 21 hours are needed from cutting, salvaging to cementing completion, wherein the time of pulling out the well is at least 3 hours, the device can save the time of pulling out the well and searching the well hole once per well, and the labor and energy consumption of 3 hours and pulling out the well once can be saved at least.
Claims (10)
1. A device for simultaneously completing the fishing and well sealing operation of a submarine oil well comprises a mandrel component for transmitting torque and sealing the well; the method is characterized in that: a slip component and a clamping cone component for fishing operation are arranged outside the mandrel component; and a clutch device for converting the working state is arranged between the slip component and the mandrel component.
2. The device for simultaneously completing fishing and sealing of a subsea well according to claim 1, wherein: the mandrel component is a hollow component, and cement slurry for well sealing operation is injected into the well from a middle hole of the mandrel component; the mandrel component comprises an upper joint (1), a middle cylinder (3) and a lower joint (11) which are connected end to end through a rotary step thread from top to bottom; the lower joint (11) is connected with a cutting knife used for cutting the underground casing.
3. The device for simultaneously completing fishing and sealing of a subsea well according to claim 2, wherein: the slip assembly is positioned on the outer circular surfaces of the upper joint (1) and the middle cylinder (3); the slip component comprises a J groove cylinder (2), an adjusting cylinder (5), a connecting sleeve (7), an elastic sleeve (8), a centralizing sleeve (9) and a slip (10) which are in threaded connection from top to bottom; the lower end of the inner circular surface of the J groove cylinder (2) and the lower end of the inner circular surface of the adjusting cylinder (5) are connected with the outer circular surface of the middle cylinder (3) in a sliding way through a wear-resistant ring (4); the excircle of the adjusting cylinder (5) is connected with the righting sleeve (9) through an inner hexagonal socket head cap screw (17); the lower end of the excircle of the elastic sleeve (8) is fixedly connected with the slip (10) through an inner hexagonal socket head cap screw (17).
4. The device for simultaneously completing fishing and sealing of a subsea well according to claim 2, wherein: the clamping cone assembly is positioned on the outer circular surface of the lower joint (11) and is locked on the lower joint (11) through a circlip (18) for a shaft; the cone clamping assembly comprises a bearing protection sleeve (12), the lower end of the bearing protection sleeve (12) is rotatably connected with the outer circular surface of the lower joint (11) through a tapered roller bearing (14) and the upper end of the bearing protection sleeve is rotatably connected with the outer circular surface of the lower joint (11) through a wear-resistant ring (4), and the upper end surface of the bearing protection sleeve (12) is axially fixed and locked by an elastic retaining ring (18) for a shaft; the outer circle surface of the bearing protection sleeve (12) is fixedly connected with the slip cone (13) through an inner hexagonal socket head cap screw (17).
5. The device for simultaneously completing fishing and sealing of a subsea well according to claim 2, wherein: the clutch device comprises a clamping key (21) arranged on the upper joint (1) and a J-shaped groove (22) arranged on the J-shaped groove barrel (2); when the clamping key (21) is clamped into the J-shaped groove (22), the mandrel component enables the clamping cone component positioned at the excircle of the lower joint (11) to be separated from the slip component under the action of self weight, and the slip (10) on the slip component contracts inwards to release a downhole conduit to be in a non-salvage state; when the clamping key (21) is screwed out of the hook-shaped part in the J-shaped groove (22) by the rotating tool, the drilling tool is lifted to prop open the slip (10) through the slip cone (13), so that the slip (10) is clamped into the clamping groove of the underground conduit to be in a salvage state.
6. The device for simultaneously completing fishing and sealing of a subsea well according to claim 3, wherein: more than 3 adjusting grooves for adjusting the height of the positioning ring (6) are formed in the outer circle of the adjusting cylinder (5) of the slip assembly; the adjusting groove is connected with the positioning ring (6) through a fixing pin (16) and locked through an inner hexagonal cylindrical head screw (17) and an inner hexagonal flat end fastening screw (15).
7. The device for simultaneously completing fishing and sealing of a subsea well according to claim 6, wherein: the positioning ring (6) is provided with more than 3 evenly distributed anti-abrasion alloy surfaces (23) close to the end surface of the connecting sleeve (7).
8. The device for simultaneously completing fishing and sealing of a subsea well according to claim 3, wherein: and the threaded connection parts of the J-shaped groove barrel (2), the adjusting barrel (5), the connecting sleeve (7) and the elastic sleeve (8) are provided with inner hexagonal flat end set screws (15).
9. The device for simultaneously completing fishing and sealing of a subsea well according to claim 5, wherein: the front end of the slip (10) is of a cylindrical structure with a boss, and two ends of the boss are provided with guide angles and arc transitions; the shape of the lug boss corresponds to the shape and the size of a clamping groove of the conduit to be salvaged; the slips (10) are series pieces and are selected to be used according to the shape and the size of a clamping groove of a conduit to be salvaged; the joint of the slip (10) and the elastic sleeve (8) is provided with a dovetail structure.
10. The device for simultaneously completing fishing and sealing of a subsea well according to claim 4, wherein: the lower joint (11) and the bearing protective sleeve (12) are respectively provided with an oil hole for filling lubricating oil for the tapered roller bearing (14), and the orifice of the oil hole is provided with an oil blocking assembly (19); and sealing rings (20) are arranged at the joints of the bearing protective sleeves (12) at the two ends of the tapered roller bearing (14) and the lower joint (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822138330.3U CN209761384U (en) | 2018-12-19 | 2018-12-19 | Device for simultaneously completing fishing and sealing operations of submarine oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822138330.3U CN209761384U (en) | 2018-12-19 | 2018-12-19 | Device for simultaneously completing fishing and sealing operations of submarine oil well |
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| Publication Number | Publication Date |
|---|---|
| CN209761384U true CN209761384U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822138330.3U Active CN209761384U (en) | 2018-12-19 | 2018-12-19 | Device for simultaneously completing fishing and sealing operations of submarine oil well |
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| CN (1) | CN209761384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505557A (en) * | 2018-12-19 | 2019-03-22 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells and salvaging with capping operation |
-
2018
- 2018-12-19 CN CN201822138330.3U patent/CN209761384U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505557A (en) * | 2018-12-19 | 2019-03-22 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells and salvaging with capping operation |
| CN109505557B (en) * | 2018-12-19 | 2023-10-31 | 贵州高峰石油机械股份有限公司 | Device for simultaneously completing fishing and well sealing operation of submarine oil well |
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