CN107939328B - Underwater production tree cup running tool - Google Patents
Underwater production tree cup running tool Download PDFInfo
- Publication number
- CN107939328B CN107939328B CN201711227539.0A CN201711227539A CN107939328B CN 107939328 B CN107939328 B CN 107939328B CN 201711227539 A CN201711227539 A CN 201711227539A CN 107939328 B CN107939328 B CN 107939328B
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- Prior art keywords
- tool body
- ring
- driving
- production tree
- lateral surface
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 40
- 238000012360 testing method Methods 0.000 claims description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 241000254175 Anthonomus grandis Species 0.000 description 1
- 244000147058 Derris elliptica Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 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
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
-
- 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
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
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- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of underwater production tree cup running tools, it is characterised in that: including tool body, the shape of tool body entirety is cylindrical structure, and the top of tool body short transverse is the interconnecting piece for being connected with drilling rod；It further include drive connection mechanism and connection separation mechanism；It is set with drive connection mechanism in the middle part of tool body short transverse, what drive connection mechanism was used to drive underwater production tree cup actuates ring, is connected so that underwater production tree cup is locked with underwater horizontal type production tree；Temporary spacing structure before drive connection mechanism includes driving piston, piston driving structure and drives；The bottom of tool body short transverse is set with connection separation mechanism, and connection separation mechanism is used to be connected or separate with underwater production tree cup locking；Connection separation mechanism includes lower baffle ring, retaining ring, drive ring and drive ring driving structure.Underwater production tree cup running tool of the invention has structure simple, reliable performance, advantage easy to use, is suitble to promote the use of in this field.
Description
Technical field
The invention belongs to underwater horizontal type production tree installation tool fields, and in particular to built in a kind of underwater horizontal type production tree is used
The running tool of tree cap.
Background technique
Underwater production tree cup is the critical component assembled in underwater horizontal type production tree ontology, underwater production tree cup be for
The barrier of sealing is provided above boll-weevil hanger for pit shaft and external environment.
Notification number in the prior art are as follows: the patent of CN203822239U discloses one kind " in underwater horizontal type production tree use
Set tree cap ", being somebody's turn to do " the built-in tree cap of underwater horizontal type production tree " (referring to shown in this specification attached drawing 1) includes that setting exists
00 inner oil tube of production tree ontology hangs on 01, the tree cap ontology 7 under slag-proofing cap, on the outside of the middle part of tree cap ontology 7
It is fixedly equipped with a load ring 6 for protruding from 7 outer surface of tree cap ontology, which is equipped with the locking of an opening
Ring 5, the upper outside of tree cap ontology 7 are arranged a d1, which is inserted into tree cap ontology 7 and lock
Between tight ring 5, this actuates the guide groove 11 that an axial direction is at least equipped on the ring wall of ring 1, and bearing pins pass through the guide groove and adopt
Oil tree cap ontology is fixedly connected, and the bearing pins can make upper and lower displacement in guide groove, is actuated and is also equipped with elasticity on ring wall calmly
Position pin, tree cap body outer wall are equipped with the lockhole that can fall into elastic positioning pin.
But in marine petroleum exploitation, underwater environment and operating condition it is complicated and changeable, to underwater production tree cup installation with
Maintenance brings inconvenience.Underwater production tree cup needs drilling rod to carry out decentralization installation, and by hydraulic in decentralization installation process
Driving or manipulator manipulation to realize holding function, in this process, need various tools cooperate jointly realize connection and
The features such as installation causes installation to have difficulty larger, and time-consuming, at high cost, uncontrollability factor is more.Also, existing water
Lower tree cap running tool is since technology is immature, unreasonable structure, and it is impossible to meet easy to use, reliable performance, installations
Quick installation requirements.
To sum up, it is simple how to design a kind of structure, reliable performance, underwater production tree cup running tool easy to use is this
Field technical staff urgently considers the technical issues of solving.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how to provide a kind of structure letter
It is single, reliable performance, underwater production tree cup running tool easy to use.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
Underwater production tree cup running tool, it is characterised in that: including tool body, the shape of the tool body entirety is
Cylindrical structure, the top of the tool body short transverse are the interconnecting piece for being connected with drilling rod；
It further include drive connection mechanism and connection separation mechanism；
The drive connection mechanism is set in the middle part of the tool body short transverse, the drive connection mechanism is used for
Driving underwater production tree cup actuates ring, so that underwater production tree cup is connected with the locking of underwater horizontal type production tree；The driving connects
Temporary spacing structure before connection mechanism includes driving piston, piston driving structure and drives, the medial surface and work of the driving piston
Connected to be slidably matched between the lateral surface of tool ontology, the driving piston is in the highest order of itself driving trip by described
Temporary spacing structure is fixedly linked with tool body before driving, and the piston driving structure is used to exert a force and destroy to driving piston
Temporary spacing structure is come so that piston is driven to move down before driving；
The bottom of the tool body short transverse is set with the connection separation mechanism, and the connection separation mechanism is used for
It is connected or separates with underwater production tree cup locking；The connection separation mechanism includes lower baffle ring, retaining ring, drive ring and drive ring
Driving structure；The lower baffle ring is sleeved and fixed the bottom outside in the tool body, and the lower baffle ring is in radial outside
Face has a circle shoulder of the lateral surface for protruding from the tool body；The retaining ring is to have to be open at one in circumferencial direction
Cirque structure, the retaining ring is socketed on the tool body and lower end surface is put off in the upper surface of the shoulder, institute
The apex angle for stating the medial surface of retaining ring is lead angle, and the lateral surface of the retaining ring has convexed to form lock tooth, and the lock tooth is used for
It is inserted into after retaining ring distending in the corresponding annular groove of tree cap ontology medial surface and realizes locking；The entirety of the drive ring is arranged
The lateral surface of the tool body above the retaining ring, and the lower section of the drive ring is whole cylindrical ejection
Cylinder, the lower end of the ejection cylinder are lead angle in the apex angle of radial outside, and the ejection cylinder is used to be inserted into the inside of the retaining ring
Face and its gap between radially adjoining side simultaneously make retaining ring distending；The drive ring driving structure is used for so that driving
Ring can move up and down along the axial direction of tool body.
Underwater production tree cup running tool of the invention when in use, is carried out by being connected at the top of drilling rod and tool body
Handling.
It then, can be by above-mentioned connection separation mechanism come so that between running tool and underwater production tree cup of the invention
Locking connection.
Then, above-mentioned drive connection mechanism can be during transferring running tool, by " driving preceding temporary spacing knot
Structure " limits driving piston, and to prevent driving piston accidentally touching underwater production tree cup actuates installation accident caused by ring.And
After running tool of the invention is transferred to underwater horizontal type production tree in place, water can be pushed by above-mentioned drive connection mechanism
Lower tree cap actuates ring, precisely realizes the locking between underwater production tree cup and underwater horizontal type production tree.
Therefore underwater production tree cup running tool of the invention be integrated with by simple and compact structure " with it is underwater
The function of connection and disconnection between tree cap " and " the locking company between underwater production tree cup and underwater horizontal type production tree
The function of connecing ".And there is reliable performance, advantage easy for operation.
Preferably, the driving piston temporary spacing structure includes upper baffle ring and stress bolt；
The upper baffle ring is the ring structure being sleeved and fixed in tool body lateral surface, and the outer end of the upper baffle ring is raised
In the lateral surface of the tool body；When the driving piston is in the highest order of itself driving trip, the driving piston
Upper surface and the lower surface of the upper baffle ring abut against, and pass through the pulling force spiral shell between the driving piston and the upper baffle ring
Bolt is fixedly linked.
Above-mentioned " driving piston temporary spacing structure " has structure simple, the advantages of being easily assembled, can be avoided driving and lives
" the driving piston temporary spacing structure " that plug is fixedly linked to constitute by radially arranged bolt and tool body is easy pair
The advantages of tool body surface damages.Therefore it can preferably protect tool body, it is ensured that running tool is more durable.
Preferably, the piston driving structure includes hollow structure, limited step, sealing ring and backflow through hole；
The inside of the tool body is that upper end is open end, and lower end is the hollow structure of closed end；
It is located at the lateral surface below upper baffle ring on the tool body and has convexed to form the limited step, the driving is lived
The upper section interior diameter of plug is less than the interior diameter of the driving piston lower section, the upper section medial surface of the driving piston and the limit
It is slidably connected between the lateral surface of tool body above step, the lower section medial surface of the driving piston and the limit
It is slidably connected between the lateral surface of step；The inside of the lower section of the medial surface and driving piston of the upper section of the driving piston
Face is respectively arranged with the groove that at least one circle insertion is provided with the sealing ring；
When the driving piston is in the highest order of itself driving trip, the lower surface of the driving piston upper section, institute
It states and is surrounded by a toroidal cavity jointly between the medial surface of driving piston lower section and the lateral surface of the tool body；The work
Tool ontology is internally provided with the backflow through hole, and the toroidal cavity is connected to by the backflow through hole with the hollow structure.
" the upper section interior diameter of piston is driven to be less than the interior straight of the driving piston lower section in above-mentioned piston driving structure
The structure of diameter " enables to the upper end face area of driving piston to be greater than the rear surface area for driving piston, so, just
It can be injected by the annular space in horizontal Christmas tree under water and positioned at tool body periphery hydraulic come so that driving piston upper end
The active force that active force downwards faces upward with lower end greatly is formed such that the downward thrust of driving piston.
As it can be seen that above-mentioned piston driving structure has structure simple, safe and reliable advantage is manipulated.
Preferably, underwater production tree cup running tool further includes pressure balance through-hole, the pressure balance through-hole is edge
The tool body extends radially through setting, and the outer end of the pressure balance through-hole is located at the work in the toroidal cavity
On the lateral surface for having ontology, the inner end of the pressure balance through-hole is located at the side wall of the hollow structure；The pressure balance is logical
The outer end in hole can expose just when the upper section of the driving piston is abutted against with the limited step, and make described hollow
Connection outside structure and tool body.
The setting of above-mentioned pressure balance through-hole can reach driving trip after bottom dead center when driving piston, pass through connection
The inside and outside pressure balance through-hole of tool body carrys out releasing appliance ontology inside and outside differential pressure, which can be by being used on platform
The pressure sensor of liquid easily measures in measurement drilling rod, have remote control terminal display installation whether in place
Indicative function.
Preferably, the drive ring driving structure includes external screw thread and internal screw thread；The medial surface of the drive ring has
The lateral surface of internal screw thread, the tool body has external screw thread, is threadedly engaged between the drive ring and the tool body
Connection；The length of the thread segment of the lateral surface of the tool body is greater than the length of the internal thread segment of the drive ring.
Running tool of the invention by threaded connection between drive ring and tool body, so as to by drilling rod with
Positive and negative rotation (rotating cycle is controllable, so as to accurately control the moving distance of drive ring) after tool body connection, it is real
The installation connection or unlock of existing tool and underwater production tree cup, mechanical driving method are safer reliable.
Preferably, the lateral surface of the drive ring has been recessed keyway, antirotation keys are fixedly installed in the keyway
Block, the anti-rotation key block protrude from the lateral surface of the drive ring in the radial lateral surface of drive ring.
Underwater production tree cup and running tool of the invention are axis class formation, transfer and are easy rotation in installation process, drop
The reliability of low installation.Running tool of the invention designs in structure anti-rotation structure (anti-rotation key block and subsea production tree
Slot is corresponded on the medial surface of cap ontology to match), structure is simpler, and reliability is higher.
Preferably, underwater production tree cup running tool further includes the emergency unlocking structure that tool body bottom is arranged in,
The emergency unlocking structure includes emergency unlock pedestal, lag screw and caging bolt；
Circle block structure of the emergency unlock pedestal generally with the coaxial setting of tool body, the emergency unlock bottom
Seat is fixedly linked by the lag screw and the lower end surface of the tool body bottom；The lower end surface of the emergency unlock pedestal
Recess forms limited position bolt providing holes, and the bottom hole of the caging bolt providing holes has the smooth bar part for caging bolt vertical
The lower surface of perforative perforation, the bottom of the tool body has threaded hole corresponding with the perforation, the caging bolt
The upper screw thread rod segment far from bolt head is rotatably connected in the threaded hole, and the bolt head of the caging bolt can unlock the emergency
The whereabouts of pedestal forms limit；
It is sliding connection between the medial surface of the lower baffle ring and the lateral surface of the tool body bottom；Under described
Being sleeved and fixed between baffle ring and tool body is to pass through: the lateral surface of the upper surface of the lower baffle ring and tool body is radially
The lower end surface for the limited step that evagination is formed abuts against, and the lower end surface of the lower baffle ring and emergency unlock pedestal outer circumferential end
Upper surface abuts against to realize.
The present invention will be additionally provided with mechanical emergency unlocking structure.When appearance can not drive driving by rotary drill rod
Ring far from retaining ring case of emergency when, can be promoted by overpull, after breaking the lag screw of tool bottom, emergency unlock pedestal
It moves down a bit of and lower baffle ring is moved down therewith, enable the retaining ring being set on lower baffle ring far from drive ring and return
Contracting, so that the unlock between implementation tool and underwater production tree cup, realizes emergency unlocking function.
Preferably, underwater production tree cup running tool further includes sealing test structure, the sealing test structure includes
Sealing test interface and sealing test channel, the sealing test interface are set to the upper surface at the middle part of the tool body,
Sealing test channel the axially penetrating through along the tool body, and the upper end in the sealing test channel and the sealing test
Sealing joint connection, the lower end in the sealing test channel is located at the lower end surface of the bottom of the tool body.
The setting of above-mentioned sealing test structure, can be easily between underwater production tree cup and the sealing surface of running tool
Leakproofness.So that it is guaranteed that above-mentioned piston driving structure smoothly reliably uses.
Underwater production tree cup running tool (lower abbreviation: tool) of the invention has following advantageous effects:
1, running tool of the invention is by the threaded connection between drive ring and tool body, so as to pass through drilling rod
Positive and negative rotation (rotating cycle is controllable, so as to accurately control the moving distance of drive ring) after being connect with tool body,
The installation of implementation tool and underwater production tree cup connects or unlock, and mechanical driving method is safer reliable.
2, underwater production tree cup and running tool of the invention are axis class formation, transfer and are easy rotation in installation process,
Reduce the reliability of installation.Running tool of the invention designs in structure anti-rotation structure (anti-rotation key block), and structure is simpler
Single, reliability is higher.
3, the locking of underwater production tree cup is pushed after breaking the stress bolt on driving piston by the pressure difference inside and outside tool
Driving piston moves down and push underwater production tree cup actuates ring, thus realize underwater production tree cup and underwater horizontal type production tree it
Between locking.
4, running tool of the invention is equipped with pressure balance through-hole and backflow through hole on tool body.It installs and locks in tool
It in tight process, can not only be flowed back by backflow through hole, it is ensured that drive smoothly moving down for piston；When driving piston reaches driving
Stroke after bottom dead center, and can be by connectivitv tool body interior and external pressure balance through-hole come in releasing appliance ontology
External differential, the pressure difference can have by easily measuring on platform for measuring the pressure sensor of liquid in drilling rod
Remote control terminal display installation whether indicative function in place.
5, the present invention will be additionally provided with mechanical emergency unlocking structure.When appearance can not drive drive by rotary drill rod
Rotating ring far from retaining ring case of emergency when, can be promoted by overpull, after breaking the lag screw of tool bottom, emergency unlock bottom
Seat moves down a bit of and lower baffle ring is moved down therewith, enable the retaining ring being set on lower baffle ring far from drive ring simultaneously
Retraction, so that the unlock between implementation tool and underwater production tree cup, realizes emergency unlocking function.
Detailed description of the invention
Fig. 1 is notification number are as follows: the structure of CN203822239U, entitled " the built-in tree cap of underwater horizontal type production tree " are shown
It is intended to.
Fig. 2 is the schematic perspective view of underwater production tree cup running tool of the invention.
Fig. 3 is the cross-sectional view of underwater production tree cup running tool of the invention.
Fig. 4 is the top view of the tool body of underwater production tree cup running tool of the invention.
Fig. 5 is line A-A cross-sectional view in Fig. 4.
Fig. 2 is marked into Fig. 5
1 tool body, 2 lower baffle rings, 3 emergency unlock pedestals, 4 drive rings, 5 retaining rings, 6 upper baffle rings, 7 driving pistons, 8 draw
Power bolt, 9 anti-rotation key blocks, 10 plug screws, 11 lag screws, 12 backflow through hole, 13 sealing test interfaces, 14 caging bolts, 15 pressures
Dynamic balance through-hole.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.Wherein, such as upper and lower, left for description use,
The exemplary terms such as right, it is therefore intended that help reader to understand, limited without being intended for.
Embodiment one, as shown in Figures 2 to 5:
Underwater production tree cup running tool, including tool body 1, the whole shape of the tool body 1 are cylindrical knot
Structure, the top of 1 short transverse of tool body are the interconnecting piece for being connected with drilling rod；
It further include drive connection mechanism and connection separation mechanism；
The drive connection mechanism is set in the middle part of 1 short transverse of tool body, the drive connection mechanism is used
Ring is actuated in driving underwater production tree cup, so that underwater production tree cup is connected with the locking of underwater horizontal type production tree；The driving
Temporary spacing structure before bindiny mechanism includes driving piston 7, piston driving structure and drives, the medial surface of the driving piston with
Connected to be slidably matched between the lateral surface of tool body 1, the driving piston passes through in the highest order of itself driving trip
Temporary spacing structure is fixedly linked with tool body 1 before the driving, and the piston driving structure is used for driving piston force
And temporary spacing structure is come so that piston is driven to move down before destroying driving；
The bottom of 1 short transverse of tool body is set with the connection separation mechanism, and the connection separation mechanism is used
It is connected or separates in is locked with underwater production tree cup；The connection separation mechanism includes lower baffle ring 2, retaining ring 5,4 and of drive ring
Drive ring driving structure；The lower baffle ring 2 is sleeved and fixed the bottom outside in the tool body 1, and the lower baffle ring 2 is in diameter
To lateral surface have protrude from the tool body 1 lateral surface one circle shoulder；The retaining ring is to have in circumferencial direction
There is the cirque structure being open at one, the retaining ring is socketed on the tool body 1 and lower end surface is put off in the shoulder
Upper surface, the apex angle of the medial surface of the retaining ring is lead angle, and the lateral surface of the retaining ring has convexed to form lock tooth, described
It locks tooth and is used to be inserted into realization locking in the corresponding annular groove of tree cap ontology medial surface after retaining ring distending；The drive ring
Entirety be sheathed on the lateral surface of the tool body 1 above the retaining ring, and to be whole be in the lower section of the drive ring
Cylindric ejection cylinder, the lower end of the ejection cylinder are lead angle in the apex angle of radial outside, and the ejection cylinder is described for being inserted into
The medial surface of retaining ring and its gap between radially adjoining side simultaneously make retaining ring distending；The drive ring driving structure
For enabling drive ring to move up and down along the axial direction of tool body 1.
Wherein, the driving piston temporary spacing structure includes upper baffle ring 6 and stress bolt 8；
The upper baffle ring 6 is the ring structure being sleeved and fixed in 1 lateral surface of tool body, and the outer end of the upper baffle ring 6
It is raised in the lateral surface of the tool body 1；When the driving piston is in the highest order of itself driving trip, the driving is lived
The upper surface of plug and the lower surface of the upper baffle ring 6 abut against, and by described between the driving piston and the upper baffle ring 6
Stress bolt is fixedly linked.
When implementation, the lateral surface of the top position at the middle part of 1 short transverse of preferred kit ontology has been recessed a limit
Position step, the ring that performs are socketed at the limited step, and the upper surface of the limited step is fixedly connected with vertical and band
There is the screw of backing plate, the ring that performs is fixed on the step surface of the backing plate and above-mentioned limited step." perform ring above
Fixation " structure is most simple, assembles up highly efficient.
Wherein, the piston driving structure includes hollow structure, limited step, sealing ring and backflow through hole 12；
The inside of the tool body 1 is that upper end is open end, and lower end is the hollow structure of closed end；
The lateral surface for being located at 6 lower section of upper baffle ring on the tool body 1 has convexed to form the limited step, the driving
The upper section interior diameter of piston is less than the interior diameter of the driving piston lower section, the upper section medial surface of the driving piston and the limit
Position step above tool body 1 lateral surface between be slidably connected, it is described driving piston lower section medial surface with it is described
It is slidably connected between the lateral surface of limited step；The lower section of the medial surface and driving piston of the upper section of the driving piston
Medial surface is respectively arranged with the groove that at least one circle insertion is provided with the sealing ring；
When the driving piston is in the highest order of itself driving trip, the lower surface of the driving piston upper section, institute
It states and is surrounded by a toroidal cavity jointly between the medial surface of driving piston lower section and the lateral surface of the tool body 1；It is described
Tool body 1 is internally provided with the backflow through hole, and the backflow through hole connects the toroidal cavity and the hollow structure
It is logical.
When implementation, the preferably described backflow through hole is located at the most inner side of the limited step in the radial outer end of tool body 1
End, and the straight that the backflow through hole is radially tilted down in tool body 1.It is not only convenient for processing in this way, be additionally favorable for
Medium in above-mentioned toroidal cavity is discharged rapidly when driving piston to push.
Wherein, underwater production tree cup running tool further includes pressure balance through-hole 15, and the pressure balance through-hole 15 is edge
The tool body 1 extends radially through setting, and the outer end of the pressure balance through-hole 15 is located at the institute in the toroidal cavity
On the lateral surface for stating tool body 1, the inner end of the pressure balance through-hole 15 is located at the side wall of the hollow structure；The pressure
The outer end for balancing through-hole 15 can expose just when the upper section of the driving piston is abutted against with the limited step, and make
Connection outside the hollow structure and tool body 1.
Wherein, the drive ring driving structure includes external screw thread and internal screw thread；The medial surface of the drive ring has interior spiral shell
The lateral surface of line, the tool body 1 has external screw thread, is the company of being threadedly engaged between the drive ring and the tool body 1
It connects；The length of the thread segment of the lateral surface of the tool body 1 is greater than the length of the internal thread segment of the drive ring.
When implementation, machinery rotation tool body 1 can be driven by screw drive to be moved, on tool body 1 and drive ring
Maximum displacement needed for the reach of setting is greater than drive ring driving.
Wherein, the lateral surface of the drive ring has been recessed keyway, and anti-rotation key block 9 is fixedly installed in the keyway,
The anti-rotation key block protrudes from the lateral surface of the drive ring in the radial lateral surface of drive ring.
Wherein, underwater production tree cup running tool further includes the emergency unlocking structure that 1 bottom of tool body is arranged in, described
Unlocking structure of meeting an urgent need includes emergency unlock pedestal 3, lag screw 11 and caging bolt 14；
Circle block structure of the emergency unlock pedestal 3 generally with the coaxial setting of tool body 1, the emergency unlock
Pedestal 3 is fixedly linked by the lag screw and the lower end surface of 1 bottom of tool body；The emergency unlock pedestal 3
Lower end surface is recessed to form limited position bolt providing holes, and the bottom hole of the caging bolt providing holes has the polished rod portion for caging bolt
Divide vertical perforative perforation, the lower surface of the bottom of the tool body 1 has threaded hole corresponding with the perforation, the limit
The screw thread rod segment far from bolt head is rotatably connected in the threaded hole on the bolt of position, and the bolt head of the caging bolt can be answered described
The whereabouts of anxious unlock pedestal 3 forms limit；
It is sliding connection between the lateral surface of 1 bottom of medial surface and the tool body of the lower baffle ring 2；It is described
Being sleeved and fixed between lower baffle ring 2 and tool body 1 is to pass through: the upper surface of the lower baffle ring 2 and the lateral surface of tool body 1
The lower end surface for the limited step that radially evagination is formed abuts against, and the lower end surface of the lower baffle ring 2 and emergency unlock pedestal 3 are circumferential
The upper surface of outboard end abuts against to realize.
When implementation, blocked preferably at 1 lower hollow of tool body by the screw thread plug screw 10 that is screwed on.
Wherein, underwater production tree cup running tool further includes sealing test structure, and the sealing test structure includes sealing
Test interface 13 and sealing test channel, the sealing test interface are set to the upper surface at the middle part of the tool body 1, institute
State sealing test channel axially penetrating through along the tool body 1, and the upper end in the sealing test channel and the sealing test
Sealing joint connection, the lower end in the sealing test channel is located at the lower end surface of the bottom of the tool body 1.
The underwater production tree cup running tool of above embodiments, by function be segmented into up and down two parts, upper and lower two
Part is serially connected by tool body.Wherein, lower part by lower baffle ring 2, emergency unlock pedestal 3, drive ring 4, retaining ring 5,
Anti-rotation key block 9, plug screw 10 and lag screw 11 are constituted, and major function is to realize underwater production tree cup running tool and submerged production
Set the locking and unlock of cap；Top is mainly made of upper baffle ring 6, driving piston 7 and stress bolt 8, and major function is to realize water
Installation locking between lower tree cap and underwater horizontal type production tree.Have the advantages that simple and compact for structure.
The underwater production tree cup running tool of above embodiments use process is as follows:
Firstly, underwater production tree cup running tool need to be connect with underwater production tree cup.
Spiral shell when connection, by the rotation of the tool body 1 of underwater production tree cup running tool, on driving instrument ontology 1
The drive ring 4 of line connection, drive ring 4 is gradually moved into 5 inner ring of retaining ring, and retaining ring 5 is strutted, and makes the outer ring of retaining ring 5
It is caught on the lubrication groove profile face of underwater production tree cup and realizes locking in corresponding card slot.
In design in view of underwater production tree cup running tool may rotation, so, be provided in retaining ring 4 anti-
Turn key block 9, anti-rotation key block 9 are caught in the keyway of the underwater production tree cup to match therewith, realize anti-rotation function.
It is connected secondly, underwater production tree cup and underwater horizontal type production tree is promoted to install.
When installation, due to being hollow structure inside tool body 1, so that the tool body of underwater production tree cup running tool
There are pressure differences inside and outside 1, press to annular space outside underwater production tree cup running tool, and driving driving piston 7 breaks stress bolt
8, and the ring that actuates of underwater production tree cup is pushed to move down and push the retaining ring of tree cap ontology radially distending, it realizes
Locking connection between underwater production tree cup and underwater horizontal type production tree.At the same time, underwater production tree cup running tool is in work
When making, the movement of piston 7 is driven, the fluid in plunger shaft is pushed to flow into tool body 1 by runner hole 12, when driving piston
7 when being moved to specified displacement, and the inside of tool body 1 is connected to by portion of runner hole 12 with outside, releasing appliance ontology 1 it is interior
External differential, while showing and (being measured for measuring the pressure sensor of inner pressure inside pipe) in remote control terminal, it realizes
It is installed in place the effect of instruction, improves the control precision of installation.
Finally, releasing the connection of underwater production tree cup running tool and underwater production tree cup.
Control drilling rod rotation drives tool body 1 to reversely rotate, and drive ring 4 is under the action of screw thread to moving up when rotation
Dynamic, the inner ring of retaining ring 5 does not stress and elastic recovery occurs, and it is real that 5 outer ring of retaining ring is detached from underwater production tree cup lubrication groove profile face
Now unlock.So as to which underwater production tree cup running tool is smoothly withdrawn.
In addition, the present invention will be additionally provided with mechanical emergency unlocking function.The emergency unlocking function is rotated when by drilling rod
Use when tool body 1 can not make drive ring 4 retract and retaining ring 5 is retracted, in use, passing through overpull hoisting tool sheet
Body 1, breaks the lag screw 11 of tool bottom, and emergency unlock pedestal 3 is fallen at caging bolt, lower baffle ring 2 with put with seat
Sleeve 3, which falls, lower section distance and enables the retaining ring 5 on lower baffle ring 2 far from drive ring 4, so as to realize production tree
Emergency unlock between cap installation tool and underwater production tree cup.
Embodiment two, is not shown in the figure:
The present embodiment and embodiment one the difference is that:
The piston driving structure is hydraulic-driven structure, which can be by recessed on 1 surface of tool body
Fall into and form an annular chamber, and the medial surface of the driving piston has radially convexed to form a bulge loop, the bulge loop it is interior
To be slidingly sealed mating connection and by above-mentioned hydraulic cavities every being divided into two hydraulic cavities, institute between side and the side wall of the annular chamber
State the hydraulic interface for being provided on tool body 1 and being respectively communicated with above-mentioned two hydraulic cavities.
Temporary spacing structure includes counter sink and stop screw before the driving；It is radially passed through in the lateral surface of driving piston
It wears and is equipped with the counter sink, when the driving piston is in the highest order of itself driving trip, outside the tool body 1
Side is provided with the connecting hole with counter sink perforation, and the stop screw is plugged in the counter sink and connecting hole and realizes
Temporary spacing before driving.
The drive ring driving structure is hydraulic-driven structure, with the hydraulic-driven structure of above-mentioned piston driving structure.
The above-mentioned piston driving structure and drive ring driving structure of embodiment two increase the complexity of structure and the difficulty of manipulation
Degree.
The above is only the preferred embodiment of the present invention, need to point out it is that this skill is not being departed from for those skilled in the art
Under the premise of art scheme, several modifications and improvements can also be made, the technical solution of above-mentioned modification and improvement, which should equally be considered as, to be fallen
Enter the claimed range of the claims.
Claims (6)
1. underwater production tree cup running tool, it is characterised in that: including tool body, the shape of the tool body entirety is circle
Column construction, the top of the tool body short transverse are the interconnecting piece for being connected with drilling rod；
It further include drive connection mechanism and connection separation mechanism；
The drive connection mechanism is set in the middle part of the tool body short transverse, the drive connection mechanism is for driving
Underwater production tree cup actuates ring, so that underwater production tree cup is connected with the locking of underwater horizontal type production tree；The drive connection machine
Temporary spacing structure before structure includes driving piston, piston driving structure and drives, the medial surface and tool sheet of the driving piston
Connected to be slidably matched between the lateral surface of body, the driving piston passes through the driving in the highest order of itself driving trip
Preceding temporary spacing structure is fixedly linked with tool body, and the piston driving structure is used to exert a force to driving piston and destroys driving
Preceding temporary spacing structure is come so that piston is driven to move down；The driving piston temporary spacing structure includes upper baffle ring and pulling force spiral shell
Bolt；The upper baffle ring is the ring structure being sleeved and fixed in tool body lateral surface, and the outer end of the upper baffle ring is raised in institute
State the lateral surface of tool body；When the driving piston is in the highest order of itself driving trip, the upper end of the driving piston
Face and the lower surface of the upper baffle ring abut against, and solid by the stress bolt between the driving piston and the upper baffle ring
It is fixed to be connected；
The piston driving structure includes hollow structure, limited step, sealing ring and backflow through hole；
The inside of the tool body is that upper end is open end, and lower end is the hollow structure of closed end；
It is located at the lateral surface below upper baffle ring on the tool body and has convexed to form the limited step, the driving piston
Upper section interior diameter is less than the interior diameter of the driving piston lower section, the upper section medial surface and the limited step of the driving piston
It is slidably connected between the lateral surface of the tool body of top, the lower section medial surface and the limited step of the driving piston
Lateral surface between be slidably connected；The medial surface point of the lower section of the medial surface and driving piston of the upper section of the driving piston
It is not provided with the groove that at least one circle insertion is provided with the sealing ring；
When the driving piston is in the highest order of itself driving trip, the lower surface of the driving piston upper section, the drive
A toroidal cavity is surrounded by between the medial surface of piston lower section and the lateral surface of the tool body jointly；The tool sheet
Body is internally provided with the backflow through hole, and the toroidal cavity is connected to by the backflow through hole with the hollow structure；
The bottom of the tool body short transverse is set with the connection separation mechanism, and the connection separation mechanism is used for and water
Lower tree cap locking is connected or separation；The connection separation mechanism includes lower baffle ring, retaining ring, drive ring and drive ring driving
Structure；The lower baffle ring is sleeved and fixed the bottom outside in the tool body, and the lower baffle ring is in radial outside mask
There is a circle shoulder of the lateral surface for protruding from the tool body；The retaining ring is to have the circle being open at one in circumferencial direction
Ring structure, the retaining ring is socketed on the tool body and lower end surface is put off in the upper surface of the shoulder, the lock
The apex angle of the medial surface of tight ring is lead angle, and the lateral surface of the retaining ring has convexed to form lock tooth, and the lock tooth is for locking
It is inserted into after ring distending in the corresponding annular groove of tree cap ontology medial surface and realizes locking；The entirety of the drive ring is sheathed on institute
The lateral surface of the tool body above retaining ring is stated, and the lower section of the drive ring is whole cylindrical ejection cylinder,
The lower end of the ejection cylinder radial outside apex angle be lead angle, the ejection cylinder be used for be inserted into the retaining ring medial surface and
Its gap between radially adjoining side simultaneously makes retaining ring distending；The drive ring driving structure is for enabling drive ring
Enough axial directions along tool body move up and down.
2. underwater production tree cup running tool according to claim 1, it is characterised in that: it further include pressure balance through-hole,
The pressure balance through-hole is the setting that extends radially through along the tool body, and the outer end of the pressure balance through-hole is located at institute
On the lateral surface for stating the tool body in toroidal cavity, the inner end of the pressure balance through-hole is located at the hollow structure
Side wall；Just can when the upper section of the driving piston and the limited step abut against the outer end of the pressure balance through-hole
Expose, and makes the connection outside the hollow structure and tool body.
3. underwater production tree cup running tool according to claim 1, it is characterised in that: the drive ring driving structure packet
Include external screw thread and internal screw thread；The medial surface of the drive ring has internal screw thread, and the lateral surface of the tool body has external screw thread,
It is to be threadedly engaged connection between the drive ring and the tool body；The length of the thread segment of the lateral surface of the tool body
Greater than the length of the internal thread segment of the drive ring.
4. underwater production tree cup running tool according to claim 3, it is characterised in that: in the lateral surface of the drive ring
It is recessed to be formed with keyway, anti-rotation key block, radial lateral surface of the anti-rotation key block in drive ring are fixedly installed in the keyway
Protrude from the lateral surface of the drive ring.
5. underwater production tree cup running tool according to claim 1, it is characterised in that: further include being arranged in tool body
The emergency unlocking structure of bottom, the emergency unlocking structure include emergency unlock pedestal, lag screw and caging bolt；
Circle block structure of the emergency unlock pedestal generally with the coaxial setting of tool body, the emergency unlock pedestal are logical
It crosses the lag screw and the lower end surface of the tool body bottom is fixedly linked；The lower end surface recess of the emergency unlock pedestal
It is formed with caging bolt providing holes, there is the bottom hole of the caging bolt providing holes smooth bar part for caging bolt vertically to run through
Perforation, the lower surface of the bottom of the tool body has a threaded hole corresponding with the perforation, on the caging bolt far
Screw thread rod segment from bolt head is rotatably connected in the threaded hole, and the bolt head of the caging bolt can unlock pedestal to the emergency
Whereabouts formed limit；
It is sliding connection between the medial surface of the lower baffle ring and the lateral surface of the tool body bottom；The lower baffle ring
Being sleeved and fixed between tool body is to pass through: the lateral surface of the upper surface of the lower baffle ring and tool body radially evagination
The lower end surface of the limited step of formation abuts against, the lower end surface of the lower baffle ring and the upper table at emergency unlock pedestal outer circumferential end
Face abuts against to realize.
6. underwater production tree cup running tool according to claim 1, it is characterised in that: it further include sealing test structure,
The sealing test structure includes sealing test interface and sealing test channel, and the sealing test interface is set to the tool
The upper surface at the middle part of ontology, sealing test channel the axially penetrating through along the tool body, and the sealing test channel
Upper end be connected to the sealing test sealing joint, the lower end in the sealing test channel is located at the bottom of the tool body
Lower end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227539.0A CN107939328B (en) | 2017-11-29 | 2017-11-29 | Underwater production tree cup running tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227539.0A CN107939328B (en) | 2017-11-29 | 2017-11-29 | Underwater production tree cup running tool |
Publications (2)
| Publication Number | Publication Date |
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| CN107939328A CN107939328A (en) | 2018-04-20 |
| CN107939328B true CN107939328B (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711227539.0A Expired - Fee Related CN107939328B (en) | 2017-11-29 | 2017-11-29 | Underwater production tree cup running tool |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561094A (en) * | 2018-05-19 | 2018-09-21 | 山东科瑞机械制造有限公司 | A kind of subsea production tree decentralization installation testing tool |
| CN109812239B (en) * | 2019-03-29 | 2023-05-23 | 海默科技（集团）股份有限公司 | Quick release mechanism based on underwater flowmeter |
| CN111305791B (en) * | 2019-11-28 | 2023-10-03 | 科莱斯（天津）电热科技有限公司 | Pressure balance guide and method for lowering heating steel cable by using same |
| CN112324371B (en) * | 2020-12-09 | 2022-09-02 | 重庆前卫科技集团有限公司 | Tool for feeding and recovering tubing hanger of underwater Christmas tree |
| CN112412372B (en) * | 2020-12-11 | 2022-10-25 | 重庆前卫科技集团有限公司 | Recovery tool is sent into to production tree abrasionproof cover under water |
| CN114198045B (en) * | 2021-12-03 | 2023-10-31 | 中海石油(中国)有限公司 | Inner tree cap device for shallow water underwater Christmas tree and application method thereof |
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|---|---|---|---|---|
| CA1225926A (en) * | 1985-01-15 | 1987-08-25 | Endre Palffy | Method of procedure for construction of drilled well, principally water producing well and well outfit for carry out the procedure |
| CA2226333C (en) * | 1995-07-15 | 2003-10-21 | Expro North Sea Limited | Lightweight intervention system |
| CN103485740A (en) * | 2008-04-28 | 2014-01-01 | 阿克海底公司 | Internal tree cap and itc running tool |
| CN105114020A (en) * | 2015-09-01 | 2015-12-02 | 中国石油天然气集团公司 | Tool for lowering and installing submarine equipment |
| CN106401515A (en) * | 2016-05-31 | 2017-02-15 | 美钻能源科技(上海)有限公司 | Underwater horizontal type Christmas tree fetching and transporting tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1225926A (en) * | 1985-01-15 | 1987-08-25 | Endre Palffy | Method of procedure for construction of drilled well, principally water producing well and well outfit for carry out the procedure |
| CA2226333C (en) * | 1995-07-15 | 2003-10-21 | Expro North Sea Limited | Lightweight intervention system |
| CN103485740A (en) * | 2008-04-28 | 2014-01-01 | 阿克海底公司 | Internal tree cap and itc running tool |
| CN105114020A (en) * | 2015-09-01 | 2015-12-02 | 中国石油天然气集团公司 | Tool for lowering and installing submarine equipment |
| CN106401515A (en) * | 2016-05-31 | 2017-02-15 | 美钻能源科技(上海)有限公司 | Underwater horizontal type Christmas tree fetching and transporting tool |
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|---|---|
| CN107939328A (en) | 2018-04-20 |
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