CN205025395U - Income instrument under underwater wellhead - Google Patents
Income instrument under underwater wellhead Download PDFInfo
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- CN205025395U CN205025395U CN201520670861.0U CN201520670861U CN205025395U CN 205025395 U CN205025395 U CN 205025395U CN 201520670861 U CN201520670861 U CN 201520670861U CN 205025395 U CN205025395 U CN 205025395U
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- lower house
- subsea equipment
- drive sleeve
- central axis
- instrument under
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Abstract
The utility model provides an income instrument under underwater wellhead, include: the center pin, from top to bottom the cover is equipped with flange portion and drives movable sleeve in proper order, and the upper end inboard of flange portion is inlayed and is established in the annular that the center pin fovea superior was established, drives movable sleeve and center pin looks spiro union, and its lateral surface is formed with the guide conical surface, and the guide conical surface from top to bottom inclines to set up towards the axle center of driving movable sleeve, the shell body, it establishes casing under the last casing that is driving the movable sleeve outside reaches to include from top to bottom to overlap in proper order, last casing is with flange portion and be connected fixedly down between the casing respectively, it is formed with the annular space to descend the casing and drive between the movable sleeve, the lateral surface sealing contact of its lower extreme and center pin, the up end of casing is equipped with a plurality of piston boits along inlaying of circumference equipartition down, the elasticity catch corresponds the cover and establishes the outer end outside at each piston boit, the piston boit is corresponding with the position of the guide conical surface, its inner formation no. 1 and guide conical surface assorted inclined plane, down casing and driving is equipped with one in addition and can prevents to drive the movable sleeve pivoted and prevent commentaries on classics portion between the movable sleeve.
Description
Technical field
The utility model relates to the production operation instrument of a kind of marine oil and gas probing industry, and enter instrument under especially a kind of subsea equipment, it is connected with subsea equipment, can be sent into seabed and be connected with sea bed preinstall apparatus.
Background technology
Current afloat oil-gas mining, when behind the position determining a bite well under water, just need by entering under drill string, the sea bed in seabed sets up subsea equipment, constantly carrying out then along with drilling well, each layer sleeve pipe is connected with subsea equipment by hanger bindiny mechanism, progressively completes shaft building.When setting up underwater well head, by under enter instrument each layer sleeve pipe and hanger thereof be lowered into seabed, and be effectively connected most important with subsea equipment.
Enter instrument major part operation under subsea equipment to complete in seabed, can wave be subject to, sea wind, the impact of the natural causes such as ocean current.Current employing lock stretch to reach instrument connect with the underwater well head of release under enter instrument, when its weak point is down that instrument reclaims, central axis dextrorotation, reserve the space that lock dog is retracted, now lock dog needs to regain, if at this moment run into wave by external force, the factor impacts such as ocean current make tubing string tilt, lock loading angle is incorrect, or other factors are blocked lock it will be made not regain, and produce certain operating risk.Although and the risk that the plug-type opening ways of turnbarrel can allow lock ring block reduces, structure relative complex, adds relative cost and risk hidden danger.So it is reliable to need to research and develop a kind of structure, enters instrument under simple to operate and reliable and stable subsea equipment and seem particularly important.
In view of this, the design people, according to the Production design experience being engaged in this area and association area for many years, enters instrument under developing a kind of subsea equipment, to solving prior art Problems existing.
Utility model content
The purpose of this utility model enters instrument under being to provide a kind of subsea equipment, and structure is reliable, simple to operate, can realize simple to subsea equipment, safe and reliable connection and release.
For this reason, enter instrument under the utility model proposes a kind of subsea equipment, it includes:
Central axis, a flange portion and a drive sleeve is arranged with from top to bottom successively outside it, be embedded inside the upper end of described flange portion in annular groove recessed on described central axis, described drive sleeve and described central axis bolt, its lateral surface is formed with a guiding conical surface, and described guiding conical surface is from top to bottom obliquely installed towards the axle center of described drive sleeve;
Shell body, comprise and be set in upper shell outside described drive sleeve and lower house from top to bottom successively, be connected and fixed respectively between described upper shell and described flange portion and lower house, an annular space is formed between described lower house and described drive sleeve, its lower end seals with the lateral surface of described central axis and contacts, the upper surface of described lower house is circumferentially uniform is embedded with multiple piston boit, the mobile radial direction along described lower house of described piston boit is placed, one elastic lock ring correspondence is set in outside the outer end of each described piston boit, and support is on the ring ear of described lower house lateral surface projection, wherein, described piston boit is corresponding with the position of described guiding conical surface, the inclined-plane that its inner formation one matches with described guiding conical surface, an anti-transfer part that can prevent described drive sleeve from rotating separately is provided with between described lower house and described drive sleeve.
Instrument is entered under subsea equipment as above, wherein, described anti-transfer part includes an anti-rotation pin and a draw-in groove, and described draw-in groove is arranged on the lateral surface of described drive sleeve lower end vertically, described anti-rotation pin is radially arranged in described lower house, and its inner is embedded in described draw-in groove.
Instrument is entered under subsea equipment as above, wherein, the lateral surface of described central axis is provided with a shoulder, and the inside wall of described lower house lower end is formed with an inner ring shoulder, described inner ring shoulder support on described shoulder, and seals with the lateral surface of described central axis and contacts.
Instrument is entered under subsea equipment as above, wherein, the lower surface of described lower house is arranged with vertically a loss of weight annular space portion, the sidewall of described lower house lower end is divided into an external annulus and an internal ring wall by described loss of weight annular space portion, described anti-rotation pin is arranged in described internal ring wall, and described inner ring shoulder is then positioned at the lower end of described internal ring wall.
Enter instrument under subsea equipment as above, wherein, described inner ring shoulder is embedded with seal washer at the medial surface contacted with described central axis.
Instrument is entered under subsea equipment as above, wherein, described flange portion comprises a upper flange and a lower flange, described upper flange is connected with described upper shell by pin for suppressing metal with lower flange, and the inside wall of described upper flange is embedded in described annular groove, and the medial surface of described lower flange is embedded with sealing ring.
Enter instrument under subsea equipment as above, wherein, be separately provided with one and show a bar, described in show that the lower end of a bar is connected to the upper end surface of described drive sleeve, its upper end edge is vertically arranged in described flange portion, and protrudes out the upper surface of described flange portion.
Enter instrument under subsea equipment as above, wherein, the lateral surface of described central axis is provided with rectangular thread, described drive sleeve medial surface is formed with the rectangle right-handed thread matched with described rectangular thread.
Instrument is entered under subsea equipment as above, wherein, the external diameter of described upper shell is greater than the external diameter of described lower house, it is circumferentially evenly equipped with multiple shop bolt, described shop bolt is radially placed, and with the lateral surface bolt of described upper shell, be connected to a fixed by pin between described upper shell and lower house.
Enter instrument under subsea equipment as above, wherein, described central axis is a hollow shaft, and its upper port place is provided with box thread, and its lower port is formed with male thread.
Instrument is entered under the subsea equipment that the utility model proposes, compact conformation, safe and reliable, by arranging central axis, drive sleeve, upper shell and lower house etc., utilize cooperatively interacting of central axis, piston boit, elastic lock ring and drive sleeve, by rotary drill column band central shaft, move vertically with drive sleeve, elastic lock ring is driven to open and fold via promotion piston boit, realize and the connection of subsea equipment and release, simplify the connection with subsea equipment, save Oil/gas Well development cost.
Accompanying drawing explanation
Fig. 1 is the composition structural representation entering instrument under subsea equipment of the present utility model;
Fig. 2 is the top view entering instrument under subsea equipment of the present utility model;
Fig. 3 is the close-up schematic view at P place in Fig. 1;
Fig. 4 is the sectional view along A-A line in Fig. 1;
Fig. 5 is the schematic perspective view of lower house in the utility model;
Fig. 6 is the sectional view of lower house in the utility model.Critical element label declaration:
1 central axis 11 annular groove
12 shoulders
2 flange portion 21 upper flanges
221 sealing ring 22 lower flanges
23 pins for suppressing metal
3 drive sleeve 31 guiding conical surfaces
32 anti-rotation pins
4 upper shell 41 shop bolts
42 pins
5 lower house 501 external annulus
502 internal ring wall 51 piston boits
511 inclined-plane 52 elastic lock rings
53 ring ear 54 inner ring shoulders
541 seal washers
6 show a bar H annular space
J loss of weight annular space portion
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model be described:
Fig. 1 is the composition structural representation entering instrument under subsea equipment of the present utility model; Fig. 2 is the top view entering instrument under subsea equipment of the present utility model; Fig. 3 is the close-up schematic view at P place in Fig. 1; Fig. 4 is the sectional view along A-A line in Fig. 1; Fig. 5 is the schematic perspective view of lower house in the utility model; Fig. 6 is the sectional view of lower house in the utility model.
See Fig. 1 to Fig. 2, enter instrument under the subsea equipment that the utility model proposes, it includes:
Central axis 1, flange portion 2 and a drive sleeve 3 is arranged with from top to bottom successively outside it, be embedded inside the upper end of described flange portion 2 in annular groove 11 recessed on described central axis 1, described drive sleeve 3 and described central axis bolt, its lateral surface is formed with a guiding conical surface 31, described guiding conical surface 31 is from top to bottom obliquely installed towards the axle center of described drive sleeve 3, and its tapering is preferably 45 degree;
Shell body, comprise and be set in upper shell 4 outside described drive sleeve 3 and lower house 5 from top to bottom successively, be connected and fixed respectively between described upper shell 4 and described flange portion 2 and lower house 3, an annular space H is formed between described lower house 5 and described drive sleeve 3, its lower end seals with the lateral surface of described central axis 1 and contacts, please also refer to Fig. 4 to Fig. 6, the upper surface of described lower house 5 is circumferentially uniform is embedded with multiple piston boit 51, the mobile radial direction along described lower house 5 of described piston boit 51 is placed, one elastic lock ring 52 correspondence is set in outside the outer end of each described piston boit 51, and support is on the ring ear 53 of described lower house 5 lateral surface projection, namely described ring ear 53 is adjacent to the downside of each described piston boit 32, to hold described elastic lock ring 52, described elastic lock ring 52 is avoided in use to come off, wherein, preferably this elastic lock ring is a C shape elastic lock ring, when each described piston boit 51 is outwards mobile, described in energy contact, elastic lock ring 52 expands outwardly, when resetting to original state under the effect of described elastic lock ring 52 at its own resilient, then can promote each described piston boit 51 to move inward,
Wherein, described piston boit 51 is corresponding with the position of described guiding conical surface 31, the inclined-plane 511 that its inner formation one matches with described guiding conical surface 31, when described drive sleeve 3 is descending, guiding conical surface 31 contacts with the inclined-plane 511 of described piston boit 51, and promote described piston boit 51 radially outward moving along described lower house 5, to realize outwards strutting described elastic lock ring 52, thus formation opening, wherein, in the construction illustrated, preferably be provided with four described piston boits 51, and it is uniform along 360 degree, and described piston boit 51 cross section is T font, its outer end contacts with described elastic lock ring 52, inclined-plane and the described guiding conical surface 41 of its inner fit,
In addition, an anti-transfer part that can prevent described drive sleeve 3 from rotating separately is provided with between described lower house 5 and described drive sleeve 3, by the position-limiting action of anti-transfer part, when rotating described central axis 1, described actuating sleeve 3 can be avoided thereupon to rotate, but can move up and down relative to described central axis 1, achieve movement, also namely, the rotation of described central axis 1 is converted to the rectilinear motion of described drive sleeve 3.
Preferably, in the construction shown in fig. 1, described anti-transfer part includes an anti-rotation pin 32 and a draw-in groove (not indicating in figure), described draw-in groove is arranged on the lateral surface of described drive sleeve 3 lower end vertically, described anti-rotation pin 32 is radially arranged in described lower house 5, its the inner is embedded in described draw-in groove, to carry out spacing to described drive sleeve 3, avoids it circumferentially to rotate.
As shown in Figure 3, can better be placed on outside described drive sleeve 3 and central axis 1 to make described lower house 5, the lateral surface of preferred described central axis 1 is provided with a shoulder 12, the inside wall of described lower house 5 lower end is formed with an inner ring shoulder 54, described inner ring takes on 54 supports on described shoulder 12, and seals with the lateral surface of described central axis 1 and contact.
Further, the lower surface of described lower house 5 is arranged with vertically a loss of weight annular space portion J, the sidewall of described lower house 5 lower end is divided into external annulus 501 and an internal ring wall 502 by described loss of weight annular space portion J, described anti-rotation pin 32 is arranged in described internal ring wall 502, and described inner ring takes on the lower end that 54 are positioned at described internal ring wall 502.Wherein, described inner ring shoulder is embedded with seal washer 541 at 54 medial surfaces contacted with described central axis 1.In addition, in schematic structure, for ease of using, described external annulus 501, also further to downward-extension, enters in the inner chamber of subsea equipment better to guide.
Wherein, described flange portion 2 comprises upper flange 21 and a lower flange 22, described upper flange 21 is connected with described upper shell 4 by pin for suppressing metal 23 with lower flange 22, and the inside wall of described upper flange 21 is embedded in described annular groove 11, and the medial surface of described lower flange 22 is embedded with sealing ring 221.
Refer to Fig. 3, be separately provided with one and show a bar 6, described in show that the lower end of a bar 6 is connected to the upper end surface of described drive sleeve 3, its upper end edge is vertically arranged in described flange portion 2, and protrudes out the upper surface of described flange portion 2.When described drive sleeve 3 moves up and down relative to described central axis 1, by showing that a bar 6 exposes the height of described flange portion 2, the displacement of drive sleeve 3 can be determined, to grasp the piston boit 51 outwards distance of movement and the degrees of expansion of elastic lock ring 52, determine that elastic lock ring 52 is in opening, manipulation of being more convenient for.Wherein, in a preferred embodiment, groove can be set in the upper surface of described drive sleeve 3, to show that the lower end of a bar 6 is connected to this groove by described.
In a preferred embodiment, the lateral surface of described central axis 1 is provided with rectangular thread, and described drive sleeve 3 medial surface is formed with the rectangle right-handed thread matched with described rectangular thread, to improve stability and the reliability of movement further.
In the structure that Fig. 1 shows, the external diameter of described upper shell 4 is greater than the external diameter of described lower house 5, it is circumferentially evenly equipped with multiple shop bolt 41, described shop bolt 41 is radially placed, and with the lateral surface bolt of described upper shell 4, be connected to a fixed by pin 42 between described upper shell 4 and lower house 5.
In order to alleviate overall weight of the present utility model further, and be convenient to the connection with other parts, preferred described central axis 1 is a hollow shaft, and its upper port place is provided with box thread, and its lower port is formed with male thread.Wherein, this male thread and box thread are preferably 5 ＂ API drill rod threads.
Erecting tools transferred by the undersea device that the utility model proposes, when original state, by suitable adjustment, described drive sleeve 3 is made to be positioned at the upper end of the threaded portion of described central axis 1, the contact of incline plane of its guiding conical surface 31 and described piston boit 51 the inner, simultaneously, described anti-rotation pin 32 the inner snaps in the draw-in groove of described drive sleeve 3, now elastic lock ring 52 is in natural shrinking state, subsequently, the utility model is put into subsea equipment, make the elastic lock ring 52 on described lower house 5 corresponding with the groove in subsea equipment, each shop bolt 41 of described upper shell 4 then correspondence is embedded in each locating slot on wellhead assembly under water,
Rotary middle spindle (dextrorotation), thus drive described central axis 1 to rotate, by the position-limiting action of anti-rotation pin 32 and draw-in groove, make described drive sleeve 3 by with described central axis 1 threaded engagement, can move downward relative to described central axis 1, thus, the guiding conical surface 31 of described drive sleeve 3 moves down, and moved along groove to centrifugal direction (outwards) by piston boit 3 described in slope driving, promote elastic lock ring 52 to expand outwardly, be engaged with the respective groove of subsea equipment inwall, so that both are locked together;
5 ＂ drilling rods are used to be connected with central axis upper end of the present utility model, in the lump subsea equipment is transferred erecting tools to connect, and transfer to precalculated position from sea, after subsea equipment has been cemented the well, reversely rotate drilling rod (left-handed), thus band central shaft 1 rotates, make drive sleeve 3 is moved, elastic lock ring 33 reclaims naturally, make piston boit 51 mobile to center position (inwardly), now transfer erecting tools to be separated with subsea equipment, trip out and transfer erecting tools, what complete subsea equipment transfers operation.
Instrument is entered under the subsea equipment that the utility model provides, compact conformation, safe and reliable, by arranging central axis, upper shell, lower house and drive sleeve, utilize central axis, drive sleeve and piston boit, the cooperatively interacting of elastic lock ring, by rotary drill column band central shaft, drive sleeve is moved vertically, thus promotion piston boit drives elastic lock ring open and fold, realize and the connection of subsea equipment and release, simplify the connection with subsea equipment, save Oil/gas Well development cost.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (10)
1. enter an instrument under subsea equipment, it is characterized in that, enter instrument under described subsea equipment and include:
Central axis, a flange portion and a drive sleeve is arranged with from top to bottom successively outside it, be embedded inside the upper end of described flange portion in annular groove recessed on described central axis, described drive sleeve and described central axis bolt, its lateral surface is formed with a guiding conical surface, and described guiding conical surface is from top to bottom obliquely installed towards the axle center of described drive sleeve;
Shell body, comprise and be set in upper shell outside described drive sleeve and lower house from top to bottom successively, be connected and fixed respectively between described upper shell and described flange portion and lower house, an annular space is formed between described lower house and described drive sleeve, its lower end seals with the lateral surface of described central axis and contacts, the upper surface of described lower house is circumferentially uniform is embedded with multiple piston boit, the mobile radial direction along described lower house of described piston boit is placed, one elastic lock ring correspondence is set in outside the outer end of each described piston boit, and support is on the ring ear of described lower house lateral surface projection, wherein, described piston boit is corresponding with the position of described guiding conical surface, the inclined-plane that its inner formation one matches with described guiding conical surface, an anti-transfer part that can prevent described drive sleeve from rotating separately is provided with between described lower house and described drive sleeve.
2. enter instrument under subsea equipment as claimed in claim 1, it is characterized in that, described anti-transfer part includes an anti-rotation pin and a draw-in groove, described draw-in groove is arranged on the lateral surface of described drive sleeve lower end vertically, described anti-rotation pin is radially arranged in described lower house, and its inner is embedded in described draw-in groove.
3. enter instrument under subsea equipment as claimed in claim 2, it is characterized in that, the lateral surface of described central axis is provided with a shoulder, and the inside wall of described lower house lower end is formed with an inner ring shoulder, described inner ring shoulder support on described shoulder, and seals with the lateral surface of described central axis and contacts.
4. enter instrument under subsea equipment as claimed in claim 3, it is characterized in that, the lower surface of described lower house is arranged with vertically a loss of weight annular space portion, the sidewall of described lower house lower end is divided into an external annulus and an internal ring wall by described loss of weight annular space portion, described anti-rotation pin is arranged in described internal ring wall, and described inner ring shoulder is then positioned at the lower end of described internal ring wall.
5. enter instrument under subsea equipment as claimed in claim 4, it is characterized in that, described inner ring shoulder is embedded with seal washer at the medial surface contacted with described central axis.
6. enter instrument under subsea equipment as claimed in claim 1, it is characterized in that, described flange portion comprises a upper flange and a lower flange, described upper flange is connected with described upper shell by pin for suppressing metal with lower flange, and the inside wall of described upper flange is embedded in described annular groove, and the medial surface of described lower flange is embedded with sealing ring.
7. enter instrument under subsea equipment as claimed in claim 1 or 2, it is characterized in that, be separately provided with one and show a bar, described in show that the lower end of a bar is connected to the upper end surface of described drive sleeve, its upper end edge is vertically arranged in described flange portion, and protrudes out the upper surface of described flange portion.
8. enter instrument under subsea equipment as claimed in claim 1, it is characterized in that, the lateral surface of described central axis is provided with rectangular thread, described drive sleeve medial surface is formed with the rectangle right-handed thread matched with described rectangular thread.
9. under the subsea equipment as described in claim 1 or 8, enter instrument, it is characterized in that, the external diameter of described upper shell is greater than the external diameter of described lower house, it is circumferentially evenly equipped with multiple shop bolt, described shop bolt is radially placed, and with the lateral surface bolt of described upper shell, be connected to a fixed by pin between described upper shell and lower house.
10. enter instrument under subsea equipment as claimed in claim 1, it is characterized in that, described central axis is a hollow shaft, and its upper port place is provided with box thread, and its lower port is formed with male thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670861.0U CN205025395U (en) | 2015-09-01 | 2015-09-01 | Income instrument under underwater wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670861.0U CN205025395U (en) | 2015-09-01 | 2015-09-01 | Income instrument under underwater wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025395U true CN205025395U (en) | 2016-02-10 |
Family
ID=55257938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520670861.0U Active CN205025395U (en) | 2015-09-01 | 2015-09-01 | Income instrument under underwater wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025395U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499356A (en) * | 2016-11-16 | 2017-03-15 | 重庆前卫科技集团有限公司 | A kind of coronal plug decentralization installation tool |
| CN107387026A (en) * | 2017-09-07 | 2017-11-24 | 中国石油大学(北京) | A kind of underwater well head tripping in instrument |
| CN109441394A (en) * | 2018-11-08 | 2019-03-08 | 中国海洋石油集团有限公司 | A kind of low pressure well head is sent into well cementation and continues drilling apparatus |
| WO2019205479A1 (en) * | 2018-04-27 | 2019-10-31 | 中国石油大学(北京) | Casing head and annulus sealing device running tool for deepwater drilling, and method for using same |
-
2015
- 2015-09-01 CN CN201520670861.0U patent/CN205025395U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499356A (en) * | 2016-11-16 | 2017-03-15 | 重庆前卫科技集团有限公司 | A kind of coronal plug decentralization installation tool |
| CN106499356B (en) * | 2016-11-16 | 2019-01-01 | 重庆前卫科技集团有限公司 | A kind of coronal plug decentralization installation tool |
| CN107387026A (en) * | 2017-09-07 | 2017-11-24 | 中国石油大学(北京) | A kind of underwater well head tripping in instrument |
| WO2019205479A1 (en) * | 2018-04-27 | 2019-10-31 | 中国石油大学(北京) | Casing head and annulus sealing device running tool for deepwater drilling, and method for using same |
| US11203910B2 (en) | 2018-04-27 | 2021-12-21 | China University of Petroleum—Beijing | Casing hanger and annulus sealing device running tool for deepwater drilling, and method for using the same |
| CN109441394A (en) * | 2018-11-08 | 2019-03-08 | 中国海洋石油集团有限公司 | A kind of low pressure well head is sent into well cementation and continues drilling apparatus |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |