CN207905732U - Floating coupling device - Google Patents
Floating coupling device Download PDFInfo
- Publication number
- CN207905732U CN207905732U CN201820216315.3U CN201820216315U CN207905732U CN 207905732 U CN207905732 U CN 207905732U CN 201820216315 U CN201820216315 U CN 201820216315U CN 207905732 U CN207905732 U CN 207905732U
- Authority
- CN
- China
- Prior art keywords
- box cupling
- sleeve
- ontology
- pressure difference
- fixes sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007667 floating Methods 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 title claims abstract description 17
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 10
- 230000004888 barrier function Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
The utility model is related to drilling tool technical field, specially a kind of floating coupling device, including box cupling ontology；Box cupling ontology is the tubular for being internally provided with transparent installation cavity, and the top of box cupling ontology installation cavity is installed with pressure difference sleeve by pin hole and shear pin, and pressure difference sleeve is up big and down small tubular.The utility model in casing by constituting temporary barrier, it slides and is full of air in circular slab casing string below, it slides and is full of drilling fluid in the casing string of circular slab or more, increase the buoyancy of the sliding following part tubular column of circular slab, lower part bunch tube is set to be in floating state during lower pipe sleeve, after bunch tube reaches precalculated position, shear pin is cut and is moved down by sliding sleeve and sliding circular slab, the drilling fluid of upper sleeve is set to enter in lower parts casing pipe, bunch tube is set to be convenient for tripping in, effectively reduce cased resistance, improve the working efficiency and cementing quality of casing tripping in.
Description
Technical field
The utility model is related to drilling tool technical fields, are a kind of floating coupling devices.
Background technology
Consolidate in completion mode in oil, natural gas and geological prospecting, the tripping in of casing whether be smoothly before well cementation last
Procedure, casing are completion tubular string the most common type attachments, but because in tripping in pipe string in the well for encountering long horizontal sections,
Longer the born frictional resistance of horizontal segment tripping in length of casing is bigger, once resistance point or the irregular variation of borehole wall appearance are encountered,
The tripping in that will result in completion tubular string is difficult, tripping in hangs tag, casing tripping in working efficiency is low, is caused to cementing quality larger
It influences.
Invention content
The utility model provides a kind of floating coupling device, overcomes the deficiency of the above-mentioned prior art, can effectively solve
Certainly because in the well for encountering long horizontal sections, longer the born frictional resistance of horizontal segment tripping in length of casing is bigger in tripping in pipe string,
Point or the irregular variation of borehole wall appearance are hindered once encountering, will result in the tripping in difficulty of completion tubular string, tripping in hangs tag, under casing
The problem of entering that working efficiency is low, large effect caused to cementing quality.
The technical solution of the utility model is realized by following measures：A kind of floating coupling device, including box cupling
Ontology and fixes sleeve；Box cupling ontology is the tubular for being internally provided with transparent installation cavity, the top of box cupling ontology installation cavity
It is installed with pressure difference sleeve by pin hole and shear pin, pressure difference sleeve is up big and down small tubular, is equipped in pressure difference sleeve
Vertical through-hole, fixes sleeve are barrel-shaped, the upper outside of fixes sleeve that opening upwards and top outer diameter are more than lower outer diameter
It is fixedly mounted on the middle part of box cupling ontology installation cavity, the lower outside of pressure difference sleeve is sleeved on the upper inner of fixes sleeve, connects
Sliding cavity is formed between hoop ontology, pressure difference sleeve and fixes sleeve, the inside middle portion of fixes sleeve passes through shear pin and pin hole
It is installed with sliding circular slab, the bottom of fixes sleeve is equipped with the intercommunicating pore being connected with the installation cavity lower part of box cupling ontology,
The lower part of fixes sleeve is laid at least two recirculation holes being connected with the installation cavity lower part of box cupling ontology, slides circular slab
The height of upper end and pressure difference sleeve bottom end is less than the height of sliding cavity, slide circular slab thickness be less than fixes sleeve recirculation hole with
The distance of fixes sleeve bottom end.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
The top of above-mentioned pressure difference sleeve is sleeved on the installation cavity top of box cupling ontology, and the top of box cupling ontology is equipped at least two
The upper outside of a uniformly distributed horizontal pin hole, pressure difference sleeve is equipped with pin hole corresponding with the pin hole of box cupling ontology, pressure difference set
Cylinder is fixedly mounted on the installation cavity top of box cupling ontology by pin hole and shear pin.
The top of above-mentioned fixes sleeve is sleeved in the middle part of the installation cavity of box cupling ontology, and the middle part of box cupling ontology is along the circumferential direction
Equipped with upper and lower two groups of corresponding through-holes, every group of through-hole at least two and along the circumferential direction uniformly distributed, fixes sleeve corresponds to box cupling
The lead to the hole site of ontology is equipped with corresponding bolt hole, and fixes sleeve is fixedly mounted on by through-hole, fixing bolt and bolt hole and is connect
In the middle part of the installation cavity for binding round ontology.
Above-mentioned sliding circular slab is sleeved in the middle part of the inner cavity of fixes sleeve, and the middle part of fixes sleeve is equipped at least two and is evenly distributed with
Horizontal pin hole, sliding circular slab corresponds to fixes sleeve pin hole position be equipped with corresponding pin hole, slide circular slab pass through shearing
Pin and pin hole are fixedly mounted in the middle part of the inner cavity of fixes sleeve.
The through-hole top of above-mentioned pressure difference sleeve is up big and down small infundibulate；Or/and in pressure difference sleeve and box cupling ontology
Shear pin is separately installed with sealing ring above and below junction, in fixes sleeve and box cupling ontology fixing bolt junction
Above and below be separately installed with sealing ring；Or/and the upper inner of box cupling ontology is equipped with screw thread, the lower part of box cupling ontology
Outside is equipped with screw thread.
The utility model reasonable and compact in structure, it is easy to use, by constituting temporary barrier in casing, slide circular slab
Be full of air in casing string below, slide and be full of drilling fluid in the casing string of circular slab or more, increase sliding circular slab with
The buoyancy of lower part casing string makes lower part bunch tube be in floating state during lower pipe sleeve, reaches pre-determined bit in bunch tube
It postpones, shear pin is cut and moved down by sliding sleeve and sliding circular slab, and the drilling fluid of upper sleeve is made to enter lower parts casing pipe
In, so that bunch tube is convenient for tripping in, effectively reduce cased resistance, improves the working efficiency and well cementation matter of casing tripping in
Amount.
Description of the drawings
Attached drawing 1 is the main view schematic cross-sectional view of the best embodiment of the utility model.
Coding in attached drawing is respectively：1 is box cupling ontology, and 2 be pressure difference sleeve, and 3 be fixes sleeve, and 4 be sliding circular slab,
5 be sliding cavity, and 6 be intercommunicating pore, and 7 be recirculation hole, and 8 be shear pin, and 9 be fixing bolt.
Specific implementation mode
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to specification
The Butut mode of attached drawing 1 is described, such as：The position relationship of front, rear, top, and bottom, left and right etc. is according to Figure of description 1
Butut direction determine.
The utility model is further described with reference to embodiment and attached drawing：
As shown in Fig. 1, the floating coupling device, including box cupling ontology 1 and fixes sleeve 3；Box cupling ontology 1 sets for inside
There are the tubular of transparent installation cavity, the top of 1 installation cavity of box cupling ontology to be installed with pressure by pin hole and shear pin 8
Poor sleeve 2, pressure difference sleeve 2 are up big and down small tubular, are equipped with vertical through-hole in pressure difference sleeve 2, fixes sleeve 3 be opening to
Upper and top outer diameter is more than the barrel-shaped of lower outer diameter, and the upper outside of fixes sleeve 3 is fixedly mounted on 1 installation cavity of box cupling ontology
Middle part, the lower outside of pressure difference sleeve 2 are sleeved on the upper inner of fixes sleeve 3, box cupling ontology 1, pressure difference sleeve 2 and fixing sleeve
Sliding cavity 5 is formed between cylinder 3,3 inside middle portion of fixes sleeve is installed with sliding circular slab 4 by shear pin 8 and pin hole,
The bottom of fixes sleeve 3 is equipped with the intercommunicating pore 6 being connected with the installation cavity lower part of box cupling ontology 1, and the lower part of fixes sleeve 3 is uniformly distributed
The recirculation hole 7 being connected with the installation cavity lower part of box cupling ontology 1 equipped at least two, sliding 4 upper end of circular slab and pressure difference sleeve 2
The height of bottom end is less than the height of sliding cavity 5, and the thickness of sliding circular slab 4 is less than 3 recirculation hole 7 of fixes sleeve and fixes sleeve 3
The distance of bottom end.In this way, at work, the utility model to be fixedly mounted on to the medium position of bunch tube, sliding circular slab 4 exists
Temporary barrier is constituted in bunch tube, slides and is filled with drilling fluid in the casing of 4 or more circular slab, slides 4 set below of circular slab
Air is filled in pipe, which adds the buoyancy of sliding 4 or less part tubular of circular slab, make the bunch tube of lower part in tripping in
During be in floating state, effectively reduce the tripping in resistance of bunch tube, when bunch tube reaches estimating position, pass through increasing
In addition the pressure of the drilling fluid in parts casing pipe, pressure difference sleeve 2 is allow to cut shear pin 8 and along 5 slide downward of sliding cavity,
The final bottom end for making pressure difference sleeve 2 is mutually touched with the upper end of sliding circular slab 4, so that sliding circular slab 4 is cut shear pin 8 downward
Move and concede recirculation hole 7, because fixes sleeve 3 top outer diameter be more than lower outer diameter, so the lower outside of fixes sleeve 3 with
There are gap, such drilling fluid that can pass sequentially through between recirculation hole 7 and fixes sleeve 3 and box cupling ontology 1 between box cupling ontology 1
Gap is flowed into the casing of lower part, is worked so as to complete the tripping in of bunch tube, is effectively raised working efficiency and well cementation
Quality.
Above-mentioned floating coupling device can be made further optimization and/or improvements according to actual needs：
As shown in Fig. 1, the top of pressure difference sleeve 2 is sleeved on the installation cavity top of box cupling ontology 1, box cupling ontology 1 it is upper
Portion is equipped at least two uniformly distributed horizontal pin hole, and the upper outside of pressure difference sleeve 2 is equipped with corresponding with the pin hole of box cupling ontology 1
Pin hole, pressure difference sleeve 2 is fixedly mounted on the installation cavity top of box cupling ontology 1 by pin hole and shear pin 8.In this way, can be with
Pressure difference sleeve 2 is set effectively to be fixed on box cupling ontology 1.
As shown in Fig. 1, the top of fixes sleeve 3 is sleeved in the middle part of the installation cavity of box cupling ontology 1, in box cupling ontology 1
Portion is along the circumferential direction equipped with upper and lower two groups of corresponding through-holes, every group of through-hole at least two and along the circumferential direction uniformly distributed, fixation
The lead to the hole site that sleeve 3 corresponds to box cupling ontology 1 is equipped with corresponding bolt hole, and fixes sleeve 3 passes through through-hole, fixing bolt 9 and spiral shell
Keyhole is fixedly mounted in the middle part of the installation cavity of box cupling ontology 1.In this way, fixes sleeve 3 can be made effectively to be fixedly mounted on box cupling
In ontology 1.
As shown in Fig. 1, sliding circular slab 4 is sleeved in the middle part of the inner cavity of fixes sleeve 3, and the middle part of fixes sleeve 3 is equipped with
At least two uniformly distributed horizontal pin holes, the position that sliding circular slab 4 corresponds to 3 pin hole of fixes sleeve are equipped with corresponding pin hole, sliding
Circular slab 4 is fixedly mounted on by shear pin 8 and pin hole in the middle part of the inner cavity of fixes sleeve 3.In this way, sliding circular slab can be made
4 are effectively fixed in fixes sleeve 3.
As shown in Fig. 1, the top of the through-hole of pressure difference sleeve 2 is up big and down small infundibulate；Or/and in pressure difference sleeve 2
It is separately installed with sealing ring with above and below 8 junction of shear pin of box cupling ontology 1, in fixes sleeve 3 and box cupling sheet
1 fixing bolt of body is separately installed with sealing ring above and below 9 junction；Or/and the upper inner of box cupling ontology 1 is equipped with
The lower outside of screw thread, box cupling ontology 1 is equipped with screw thread.In this way, sealing ring can enhance the leakproofness of the utility model.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
The use process of the best embodiment of the utility model：At work, the utility model institute casing enters in well, sliding
Circular slab 4 constitutes temporary barrier in casing, is filled with air in the casing of sliding circular slab 4 once, slides 4 or more circular slab
Casing in be filled with drilling fluid, which adds the buoyancy of the following part tubular of the utility model, realize lower parts casing pipe
Be in floating state during lower pipe sleeve, effectively reduce resistance when setting of casing, and due to the utility model more than
It is filled with drilling fluid in partial casing, to increase the pressure for casing being pushed into wellbore, realizes the smooth tripping in of casing, when
After casing enters suitable position, pressure difference sleeve 2 can cut shear pin 8 and move down under the effect of the pressure, thus with sliding
4 joint of circular slab makes sliding circular slab 4 also cut shear pin 8 under the action of pressure difference sleeve 2 and moves down, then allows
Going out recirculation hole 7 makes drilling fluid can smoothly enter into the utility model casing below, is finally completed the tripping in of casing.
Claims (9)
1. a kind of floating coupling device, it is characterised in that including box cupling ontology and fixes sleeve；Box cupling ontology is to be internally provided with
Under penetrating installation cavity tubular, the top of box cupling ontology installation cavity is installed with pressure difference set by pin hole and shear pin
Cylinder, pressure difference sleeve are up big and down small tubular, and vertical through-hole is equipped in pressure difference sleeve, and fixes sleeve is opening upwards and top
Outer diameter is more than the barrel-shaped of lower outer diameter, and the upper outside of fixes sleeve is fixedly mounted on the middle part of box cupling ontology installation cavity, pressure difference
The lower outside of sleeve is sleeved on the upper inner of fixes sleeve, is formed and is slided between box cupling ontology, pressure difference sleeve and fixes sleeve
Dynamic chamber, the inside middle portion of fixes sleeve are installed with sliding circular slab, the bottom of fixes sleeve by shear pin and pin hole
Equipped with the intercommunicating pore that the installation cavity lower part with box cupling ontology is connected, the lower part of fixes sleeve is laid at least two and box cupling
The recirculation hole that the installation cavity lower part of ontology is connected, sliding circular slab upper end and the height of pressure difference sleeve bottom end are less than sliding cavity
Highly, the thickness for sliding circular slab is less than fixes sleeve recirculation hole at a distance from fixes sleeve bottom end.
2. floating coupling device according to claim 1, it is characterised in that the top of pressure difference sleeve is sleeved on box cupling ontology
Installation cavity top, the top of box cupling ontology is equipped at least two uniformly distributed horizontal pin hole, and the upper outside of pressure difference sleeve is set
There are pin hole corresponding with the pin hole of box cupling ontology, pressure difference sleeve to be fixedly mounted on box cupling ontology by pin hole and shear pin
Installation cavity top.
3. floating coupling device according to claim 1 or 2, it is characterised in that the top of fixes sleeve is sleeved on box cupling sheet
In the middle part of the installation cavity of body, the middle part of box cupling ontology is along the circumferential direction equipped with upper and lower two groups of corresponding through-holes, and every group of through-hole is at least
For two and along the circumferential direction uniformly distributed, the lead to the hole site that fixes sleeve corresponds to box cupling ontology is equipped with corresponding bolt hole, fixing sleeve
Cylinder is fixedly mounted on by through-hole, fixing bolt and bolt hole in the middle part of the installation cavity of box cupling ontology.
4. floating coupling device according to claim 1 or 2, it is characterised in that sliding circular slab is sleeved on fixes sleeve
In the middle part of inner cavity, the middle part of fixes sleeve is equipped at least two uniformly distributed horizontal pin holes, and sliding circular slab corresponds to fixes sleeve pin hole
Position be equipped with corresponding pin hole, sliding circular slab be fixedly mounted in the inner cavity of fixes sleeve by shear pin and pin hole
Portion.
5. floating coupling device according to claim 3, it is characterised in that sliding circular slab is sleeved on the interior of fixes sleeve
In the middle part of chamber, the middle part of fixes sleeve is equipped at least two uniformly distributed horizontal pin holes, and sliding circular slab corresponds to fixes sleeve pin hole
Position is equipped with corresponding pin hole, and sliding circular slab is fixedly mounted on by shear pin and pin hole in the middle part of the inner cavity of fixes sleeve.
6. floating coupling device according to claim 1 or 2, it is characterised in that the top of the through-hole of pressure difference sleeve is upper big
Under small infundibulate；Or/and it is separately installed with above and below shear pin junction of the pressure difference sleeve with box cupling ontology
Sealing ring is separately installed with sealing ring above and below fixes sleeve and box cupling ontology fixing bolt junction；Or/and
The upper inner of box cupling ontology is equipped with screw thread, and the lower outside of box cupling ontology is equipped with screw thread.
7. floating coupling device according to claim 3, it is characterised in that the top of the through-hole of pressure difference sleeve be it is upper it is big under
Small infundibulate；Or/and it is separately installed with above and below shear pin junction of the pressure difference sleeve with box cupling ontology close
Seal is separately installed with sealing ring above and below fixes sleeve and box cupling ontology fixing bolt junction；Or/and it connects
The upper inner for binding round ontology is equipped with screw thread, and the lower outside of box cupling ontology is equipped with screw thread.
8. floating coupling device according to claim 4, it is characterised in that the top of the through-hole of pressure difference sleeve be it is upper it is big under
Small infundibulate；Or/and it is separately installed with above and below shear pin junction of the pressure difference sleeve with box cupling ontology close
Seal is separately installed with sealing ring above and below fixes sleeve and box cupling ontology fixing bolt junction；Or/and it connects
The upper inner for binding round ontology is equipped with screw thread, and the lower outside of box cupling ontology is equipped with screw thread.
9. floating coupling device according to claim 5, it is characterised in that the top of the through-hole of pressure difference sleeve be it is upper it is big under
Small infundibulate；Or/and it is separately installed with above and below shear pin junction of the pressure difference sleeve with box cupling ontology close
Seal is separately installed with sealing ring above and below fixes sleeve and box cupling ontology fixing bolt junction；Or/and it connects
The upper inner for binding round ontology is equipped with screw thread, and the lower outside of box cupling ontology is equipped with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216315.3U CN207905732U (en) | 2018-02-07 | 2018-02-07 | Floating coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820216315.3U CN207905732U (en) | 2018-02-07 | 2018-02-07 | Floating coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905732U true CN207905732U (en) | 2018-09-25 |
Family
ID=63563522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820216315.3U Active CN207905732U (en) | 2018-02-07 | 2018-02-07 | Floating coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301788A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | Floating coupling device |
| CN109209301A (en) * | 2018-11-12 | 2019-01-15 | 中国海洋石油集团有限公司 | A kind of extended horizontal well floating screen assembly |
-
2018
- 2018-02-07 CN CN201820216315.3U patent/CN207905732U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301788A (en) * | 2018-02-07 | 2018-07-20 | 中国石油集团西部钻探工程有限公司 | Floating coupling device |
| CN109209301A (en) * | 2018-11-12 | 2019-01-15 | 中国海洋石油集团有限公司 | A kind of extended horizontal well floating screen assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422812B (en) | The coal bed gas multi-branch horizontal drilling well of individual well eye and completion method | |
| CN207905732U (en) | Floating coupling device | |
| CN108301788A (en) | Floating coupling device | |
| CN100538003C (en) | The expansion sieve tube hanging method | |
| CN103075179A (en) | Entitative coal seam gas drainage drilling hole double-pipe drainage method | |
| CN107120073A (en) | Hydraulic casing centralizer | |
| CN109611060B (en) | Floating sieve tube | |
| RU183760U1 (en) | Swivel rig | |
| CN107558939A (en) | Bad ground quadruple pipe fidelity core drill | |
| CN204960866U (en) | Multi -functional well head sealing device | |
| CN203201503U (en) | Drilling fluid filter | |
| CN204941480U (en) | The horizontal well completion sleeve pipe of segmentation exploitation and the tubing string of formation thereof can be realized | |
| CN106150428A (en) | Split type exempting from bores plug completion tubular column and completion method thereof | |
| CN107882515A (en) | A kind of sleeve pipe suspending apparatus | |
| CN106761467B (en) | A kind of integration connector and the deep water cementing method using integration connector implementation | |
| CN201486494U (en) | Expansion pipe hanging connecting device | |
| CN109882114A (en) | Production pay no pollution cementing tool and process | |
| CN205713982U (en) | A kind of pile foundation construction drilling equipment being applicable to karst area | |
| CN204283312U (en) | A kind of downhole blow-out preventer | |
| CN204984337U (en) | Drilling rod back pressure blowout preventer for marine rig | |
| CN206707644U (en) | Hydraulic casing centralizer | |
| CN204571842U (en) | A kind of guard aperture sleeve pipe | |
| CN204225837U (en) | Built-in hydraulic cylinder-type swell packers | |
| CN207420453U (en) | Oil drilling three-dimensional horizontal well rigidity drifting drill assembly | |
| CN204080807U (en) | A kind of major diameter drilling follow pile tube Pile feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201104 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |