CN206801521U - One kind well cementation annular space sealing-up facility - Google Patents
One kind well cementation annular space sealing-up facility Download PDFInfo
- Publication number
- CN206801521U CN206801521U CN201720318200.0U CN201720318200U CN206801521U CN 206801521 U CN206801521 U CN 206801521U CN 201720318200 U CN201720318200 U CN 201720318200U CN 206801521 U CN206801521 U CN 206801521U
- Authority
- CN
- China
- Prior art keywords
- annular space
- well cementation
- packing element
- facility
- sealing
- 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
- 238000012856 packing Methods 0.000 claims abstract description 36
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000004568 cement Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a kind of well cementation annular space sealing-up facility, including body, and expansion packing element is installed with the body, and the expansion packing element both ends are provided with protection joint.This well cementation annular space sealing-up facility provided by the utility model, expands, the microgap sealing that will occur after the completion of construction after being contacted with formation fluid by expanding packing element, realizes the purpose that annular space insulates.The instrument construction safety, dependable performance is simple and convenient, will not bring any risk to whole cementing operation operation.
Description
Technical field
The utility model belongs to petroleum oil well completion technical field of operation, and in particular to one kind well cementation annular space sealing-up facility.
Background technology
With going deep into for exploitation of oil-gas field, strata condition becomes increasingly complex, and has after well cementation during the situation of annular space packing failure
Occur.On the one hand certain shrinkage itself be present after the cement slurry sets due to injecting annular space, cause annular space microgap；It is another
Aspect is the problem of ferrule interface and bed boundary can not be replaced fully in Process of Cementing, causes the microgap after well cementation
In the presence of, and then cause formation fluid mutually to be altered along gap.Cement sheath can not be insulated completely to payzone, and target zone can not then play
Go out higher production capacity, it is therefore necessary to after well cementation annular space packing cementing tool study, solve well cementation after stratum it
Between it is mutual alter groove phenomenon, thorough sealing is carried out to annular space.
Mainly there are hydraulic packer, mechanical packer and expansion type packing to the instrument in terms of annular space packing at present
Three kinds of device, fluid pressure type, which exists to open in advance, insulates annular space, the risk that can not be cemented the well；Mechanically quantity is placed to be restricted, it is swollen
Expanding packer, which has expanding material premature inflation, to cement the well, and packing limited strength the problems such as, no matter which kind of packer
All have some limitations, completion technique demand can not be met.
Utility model content
The purpose of this utility model is to overcome the instrument in terms of existing annular space packing microgap to be present after can not solving well cementation
The problem of.
Therefore, the utility model provides a kind of well cementation annular space sealing-up facility, including body, it is installed with the body swollen
Swollen packing element, the expansion packing element both ends are provided with protection joint.
The protection joint outer surface is evenly distributed with spiral shape rib.
The protection connector outer diameter at the expansion packing element both ends is more than expansion packing element external diameter.
Described body one end, which is provided with, becomes buckle joint.
The body is that both ends set threaded sleeve pipe.
The expansion packing element vulcanization is on body.
The beneficial effects of the utility model are：
This well cementation annular space sealing-up facility provided by the utility model, sends out after being contacted with formation fluid by expanding packing element 3
Raw expansion, the microgap sealing that will occur after the completion of construction, realize the purpose that annular space insulates.The instrument construction safety, performance can
Lean on, it is simple and convenient, any risk will not be brought to whole cementing operation operation.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation for protecting joint.
In figure：1st, joint is protected；2nd, body；3rd, packing element is expanded；4th, buckle joint is become；5th, spiral shape rib.
Embodiment
Embodiment 1：
In order to overcome the instrument in terms of existing annular space packing microgap to be present after can not solving the problems, such as well cementation.The present embodiment
A kind of well cementation annular space sealing-up facility, including body 2 are provided, expansion packing element 3, the expansion packing element 3 are installed with the body 2
Both ends are provided with protection joint 1.
The well cementation annular space sealing-up facility is connected with bunch tube is lowered into precalculated position, carries out normal cementing well work
Industry, after the completion of construction, there is the problems such as microgap in annular space cement sheath, and annular space sealing-up facility of now cementing the well contacts with formation fluid,
The expansion packing element 3 for being attached to the outer surface of body 2 is expanded, and its expansion direction is not limited by a space, the microgap envelope that will appear from
Gu realize the purpose of annular space packing.Wherein, the effect for protecting joint 1 is that well cementation annular space sealing-up facility can when sealing in well with sleeve pipe
Expansion packing element 3 is protected.
Embodiment 2：
On the basis of embodiment 1, a kind of well cementation annular space sealing-up facility is present embodiments provided, it is described to protect outside joint 1
Surface is evenly distributed with spiral shape rib 5.
When well cementation annular space sealing-up facility seals in well with sleeve pipe, protection joint 1 can be protected to expansion packing element 3, while can
To carry out righting to instrument.
In the present embodiment, the external diameter of protection joint 1 at expansion packing element 3 both ends is more than the expansion external diameter of packing element 3.
Embodiment 3：
On the basis of embodiment 1, a kind of well cementation annular space sealing-up facility as shown in Figure 1 is present embodiments provided, it is described
The one end of body 2, which is provided with, becomes buckle joint 4.
As shown in figure 1, the well cementation annular space sealing-up facility that the present embodiment provides, body 2 can use arbitrary dimension API to cover
Pipe, its upper/lower terminal have screw thread, can be connect with entering casing series winding.There is protection joint 1 at expansion packing element 3 both ends, protect outside joint 1
Footpath is smaller 3.175mm than borehole size, is evenly distributed with spiral shape rib 5（As shown in Figure 2）, protection joint 1 external diameter is more than outside packing element
Footpath, packing element can be protected when sealing in well with sleeve pipe, while righting can be carried out to instrument.Protect joint 1 and become buckle joint 4
It is threadedly coupled respectively by box thread, male thread with body 2.
Wherein, expansion packing element 3 uses expanded rubber, meets formation fluid and expands, its expansion direction is not limited by space
System, 48h expansion rates ＜ 10%, 168h expansion rates are 200%, and it is safe and reliable to seal in well with sleeve pipe, can be to annular space microgap after expansion
Thorough sealing is carried out, and then ensure that the packing ability of annular space.Expansion packing element 3 vulcanizes on body 2.
The well cementation annular space sealing-up facility construction safety, dependable performance is simple and convenient, will not give whole cementing operation operation band
Carry out any risk.
The common knowledge or conventional means for the structures and methods category industry that the present embodiment does not describe in detail, differ here
One narration.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within protection scope of the present invention.
Claims (4)
1. one kind well cementation annular space sealing-up facility, including body（2）, it is characterised in that：The body（2）On be installed with expansion packing element
（3）, the expansion packing element（3）Both ends are provided with protection joint（1）,
The protection joint（1）Outer surface is evenly distributed with spiral shape rib（5）, the expansion packing element（3）The protection joint at both ends
（1）External diameter is more than expansion packing element（3）External diameter.
A kind of 2. well cementation annular space sealing-up facility according to claim 1, it is characterised in that：The body（2）One end is provided with
Become buckle joint（4）.
A kind of 3. well cementation annular space sealing-up facility according to claim 1 or 2, it is characterised in that：The body（2）For both ends
If threaded sleeve pipe.
A kind of 4. well cementation annular space sealing-up facility according to claim 1 or 2, it is characterised in that：The expansion packing element（3）Sulphur
Change in body（2）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720318200.0U CN206801521U (en) | 2017-03-29 | 2017-03-29 | One kind well cementation annular space sealing-up facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720318200.0U CN206801521U (en) | 2017-03-29 | 2017-03-29 | One kind well cementation annular space sealing-up facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206801521U true CN206801521U (en) | 2017-12-26 |
Family
ID=60731105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720318200.0U Active CN206801521U (en) | 2017-03-29 | 2017-03-29 | One kind well cementation annular space sealing-up facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206801521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853462A (en) * | 2021-09-24 | 2023-03-28 | 中国石油天然气集团有限公司 | Reservoir Protection Cementing Tools |
-
2017
- 2017-03-29 CN CN201720318200.0U patent/CN206801521U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853462A (en) * | 2021-09-24 | 2023-03-28 | 中国石油天然气集团有限公司 | Reservoir Protection Cementing Tools |
| CN115853462B (en) * | 2021-09-24 | 2025-01-24 | 中国石油天然气集团有限公司 | Reservoir protection cementing tools |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9523256B2 (en) | Fold back swell packer | |
| CN104169518A (en) | An annular barrier having expansion tubes | |
| CN205605160U (en) | Broken tail pipe blanking plug | |
| CN204252969U (en) | Sand prevention tubular column and production tubular column | |
| US11492871B2 (en) | Buckle prevention ring | |
| US11940064B2 (en) | Threaded tubular connection | |
| US10267097B2 (en) | Pressure compensating connector system, downhole assembly, and method | |
| US2856002A (en) | Apparatus for plugging wells | |
| CN105715228B (en) | A kind of single tube gasbag-type gas drilling hole sealing device | |
| CN204371211U (en) | A kind of packer sealing structure based on the sealing of metal-rubber cylinder | |
| CN206801521U (en) | One kind well cementation annular space sealing-up facility | |
| CN104929562B (en) | Packer | |
| CN104453727A (en) | Composite casing pipe and drill hole repairing method | |
| CN203626722U (en) | Sealed cementing device | |
| CN204851161U (en) | Packer | |
| US2703144A (en) | Removable packer for wells | |
| CN207144900U (en) | A kind of oil jacket annular pressure automatic protecting control device | |
| CN104074487A (en) | Packer | |
| CN216406749U (en) | Hanger fracturing tieback instrument | |
| CN104499959A (en) | Novel vertical drilling tension anti-deviation drill collar | |
| US2822874A (en) | Combination packer and well control device | |
| CN105019854B (en) | A kind of sealed autoclave mould with super-pressure end construction | |
| CN204716188U (en) | Handling seat sealed type two group sealing machine packer | |
| CN104405331B (en) | A kind of ocean deepwater well tubing packer | |
| CN207063947U (en) | Bridging plug sets pressure testing integration controllable confining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201106 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 710016 Changqing science and technology building, four Fengcheng Road, Xi'an, Shaanxi Patentee before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute |