CN205503110U - Offshore oil field layering water injection string - Google Patents
Offshore oil field layering water injection string Download PDFInfo
- Publication number
- CN205503110U CN205503110U CN201620286913.9U CN201620286913U CN205503110U CN 205503110 U CN205503110 U CN 205503110U CN 201620286913 U CN201620286913 U CN 201620286913U CN 205503110 U CN205503110 U CN 205503110U
- Authority
- CN
- China
- Prior art keywords
- packer
- water injection
- valve
- annular space
- oil
- 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.)
- Expired - Fee Related
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides an offshore oil field layering water injection string, includes that ground controller, sleeve pipe, liquid keyholed back plate line, downhole safety valve, annular space safety packer compress the packer on, go up the water injection mandrel, compress the packer down, water injection mandrel, balanced packer, backwash valve, plug, relief valve liquid keyholed back plate line and oil pipe down, oil pipe installs in the cover intraductally. The last erection joint in order of oil pipe has downhole safety valve, annular space safety packer to compress the packer on, goes up the water injection mandrel, compresses the packer down, water injection mandrel, balanced packer, backwash valve, plug down, and relief valve liquid keyholed back plate line is connected and controls with downhole safety valve and ground controller, and liquid keyholed back plate line compresses the packer on, with annular space safety packer in order, compress the packer and ground controller is connected and controls down. The utility model has the characteristics of it separates (seats) and seals number of times, avoids the packer to separate the circumstances about can not sit again of being honored as a queen etc. To reduce the packer, mainly at sea layering water injection string goes up appliedly.
Description
Technical field
This utility model relates to oil exploitation downhole water injection string, particularly relates to a kind of offshore oilfield seperated layer water injection
Tubing string.
Background technology
At present, conventional marine separate layer water injection string, integral structure, this knot are adjusted in the most two-tube or survey
The marine separate layer water injection string of structure, has played effect for marine Water Injection Engineering, but it has also existed following simultaneously
Shortcoming or deficiency: 1. anti-flushing well operation difficulty, it is achieved anti-flushing well function need to frequently unseal, set layering packing
Device, reduces layer separating packer reliability, occurs can not unsealing because of packer, is easily caused the obstructed phenomenon of backwash；
2. tubing string entirety using effect and service life are affected；3. poor reliability it is layered；4. hard grappling causes sleeve pipe to carry
Front inefficacy.
Summary of the invention
The purpose of this utility model is to provide the offshore oilfield separate layer water injection string of a kind of improvement, uses down-hole peace
Full valve, balance packer, compression packer and the combinative structure of annular space safe containment device and balance packer pair
The soft grappling function of tubing string, ensures oil pipe and the downhole safety of oil jacket annulus access, it is achieved the layering note of oil reservoir
Water is also effectively avoided or overcomes shortcoming or deficiency present in above-mentioned prior art.
Offshore oilfield separate layer water injection string described in the utility model, including ground controller, sleeve pipe, hydraulic control
Pipeline, storm valve, annular space safe containment device, upper compression packer, upper injection well downhole flow regulator, lower compression packing
Device, lower injection well downhole flow regulator, balance packer, backwash valve, plug, relief valve liquid controling pipe line and oil pipe, oil pipe is pacified
It is loaded in sleeve pipe, it is characterised in that sequentially installing connection on described oil pipe has storm valve, annular space to seal safely
Every device, upper compression packer, upper injection well downhole flow regulator, lower compression packer, lower injection well downhole flow regulator, balance packer, anti-
Washing valve, plug, relief valve liquid controling pipe line is connected with storm valve and ground controller and controls, hydraulic control
Pipeline is sequentially connected with annular space safe containment device, upper compression packer, lower compression packer and ground controller
Connect and control.
Wherein, described upper injection well downhole flow regulator be installed and connected under compression packer, on lower compression packer with
On the oil pipe of upper oil reservoir opposite position.Described lower injection well downhole flow regulator is installed and connected under lower compression packer, puts down
Weighing apparatus packer on on the oil pipe of lower oil reservoir opposite position.Described liquid controling pipe line is connected and through annular space peace
Full packer, upper compression packer, lower compression packer, be finally connected with balance packer.Described instead
Wash valve to be installed and connected on balance oil pipe between packer, plug, which is provided with and be connected with oil jacket annular space
Duct.Described storm valve, is installed and connected on the oil pipe on annular space safe containment device, by peace
Full valve liquid controling pipe line is connected with ground controller and controls.Described ground controller is installed on wellhead ground,
It is connected with liquid controling pipe line and relief valve liquid controling pipe line respectively.
This utility model has the advantage that compared with prior art
1, after completion, packer the most no longer unseals, and the solution (sit) of in production process packer is greatly decreased
Number, increases packer at well useful life, prolongation water injection string bulk life time；
Situation about can not set again after 2, being prevented effectively from removing seal for packer, improves the reliability of tubing string layering, more
Marine seperated layer water injection demand can be met；
3, avoid the occurrence of because of packer can not unseal cause can not the situation of backwash, enhance the anti-of water injection string
Wash function, more adapt to the long-acting production under the conditions of existing injection water quality；
4, packer no longer unseals, and makes well control safety more secure, meets maritime safety and produces, cleans production
Theory；
5, substantially reduce layer separating packer failure risk, ensure seperated layer water injection effect, extend the water injection string life-span,
Improve offshore oilfield waterflooding development benefit, reduce operating cost: operation on the sea expense can be saved the most every year
800-900 ten thousand yuan.
Accompanying drawing explanation
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
Detailed description of the invention
Refering to Fig. 1, a kind of marine separate layer water injection string, including ground controller 1, sleeve pipe 2, liquid controling pipe line
3, storm valve 4, annular space safe containment device 5, upper compression packer 6, upper injection well downhole flow regulator 7, lower compression envelope
Every device 8, lower injection well downhole flow regulator 9, balance packer 10, backwash valve 11, plug 12, relief valve liquid controling pipe line 13
With oil pipe 14, oil pipe 14 is installed in sleeve pipe 2.Sequentially install on oil pipe 14 connection have storm valve 4,
Annular space safe containment device 5, upper compression packer 6, upper injection well downhole flow regulator 7, lower compression packer 8, lower injection well downhole flow regulator 9,
Balance packer 10, backwash valve 11, plug 12, relief valve liquid controling pipe line 13 and storm valve 4 and ground
Face controller 1 is connected and controls, liquid controling pipe line 3 sequentially with annular space safe containment device 5, upper compression packer
6, lower compression packer 8 is connected with ground controller 1 and controls.
Upper injection well downhole flow regulator 7 be installed and connected under compression packer 6, on lower compression packer 8 with oil
On the oil pipe 14 of layer opposite position.Lower injection well downhole flow regulator 9 is installed and connected under lower compression packer 8, balance
On packer 10 with on the oil pipe 14 of lower oil reservoir opposite position.Liquid controling pipe line 3 is connected and through annular space
Safe containment device 5, upper compression packer 6, lower compression packer 8, be finally connected with balance packer 10.
Backwash valve 11 is installed and connected on balance oil pipe 14 between packer 10, plug 12, which is provided with and oil
The duct of collar Kongxiang connection.Described storm valve 4, is installed and connected on annular space safe containment device 5
On oil pipe 14, it is connected with ground controller 1 by relief valve liquid controling pipe line 13 and controls.Ground controls
Device 1 is installed on wellhead ground, is connected with liquid controling pipe line 3 and relief valve liquid controling pipe line 13 respectively.
Annular space safe containment device 5, upper compression packer 6, lower compression packer 8 and balance packer 10
It is provided with locking mechanism.Storm valve 4 and annular space safe containment device 5 are placed in tubing string upper end, with protection
In oil pipe 14 and the passage of sleeve pipe 2 and oil pipe annular space.Balance packer 10 is placed in tubing string lowermost end,
Tubing string stress balance during to ensure each layer water filling, reduces string creep.
When being in an emergency, storm valve 4 pressure release is also closed rapidly, ensures oil pipe 14 internal channel safety；
Now, annular space safe containment device 5 is still in locking, sets state, has ensured between oil pipe and sleeve pipe
Channel security.
During normal water filling, ground controller 1 opens storm valve 4 by liquid controling pipe line 13, it is achieved oil pipe
14 channels open, are then just being suppressed by oil pipe 14 and are making annular space safe containment device 5, upper compression packer 6 and
Lower compression packer 8 sets, therewith retaining mechanism locking, it is ensured that each packing element is the most in running order, real
Existing seperated layer water injection.
During anti-flushing well, ground controller 1 is suppressed by liquid controling pipe line 3, open annular space safe containment device 5, on
Compression packer 6 and the anti-flushing well passage of lower compression packer 8, it is achieved backwash under the conditions of envelope do not understood by packer
Well operations.
Claims (6)
1. an offshore oilfield separate layer water injection string, including ground controller, sleeve pipe, liquid controling pipe line, down-hole
Relief valve, annular space safe containment device, upper compression packer, upper injection well downhole flow regulator, lower compression packer, lower water distribution
Device, balance packer, backwash valve, plug, relief valve liquid controling pipe line and oil pipe, oil piping in sleeve pipe,
It is characterized in that sequentially installing connection on described oil pipe has storm valve, annular space safe containment device, upper compression
Packer, upper injection well downhole flow regulator, lower compression packer, lower injection well downhole flow regulator, balance packer, backwash valve, plug,
Relief valve liquid controling pipe line is connected with storm valve and ground controller and controls, liquid controling pipe line sequentially with ring
Empty safe containment device, upper compression packer, lower compression packer are connected with ground controller and control.
Offshore oilfield separate layer water injection string the most according to claim 1, it is characterised in that described upper water distribution
Device is installed and connected in the oil under compression packer, on lower compression packer with upper oil reservoir opposite position
Guan Shang.
Offshore oilfield separate layer water injection string the most according to claim 1, it is characterised in that described lower water distribution
Device is installed and connected under lower compression packer, balances the oil pipe with lower oil reservoir opposite position on packer
On.
Offshore oilfield separate layer water injection string the most according to claim 1, it is characterised in that described hydraulic control pipe
Line is connected and through annular space safe containment device, upper compression packer, lower compression packer, final and balance envelope
It is connected every device.
Offshore oilfield separate layer water injection string the most according to claim 1, it is characterised in that described backwash valve
It is installed and connected on balance oil pipe between packer, plug, which is provided with the hole being connected with oil jacket annular space
Road.
Offshore oilfield separate layer water injection string the most according to claim 1, it is characterised in that described down-hole is pacified
Full valve, is installed and connected on the oil pipe on annular space safe containment device, by relief valve liquid controling pipe line and ground
Controller is connected and controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620286913.9U CN205503110U (en) | 2016-04-01 | 2016-04-01 | Offshore oil field layering water injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620286913.9U CN205503110U (en) | 2016-04-01 | 2016-04-01 | Offshore oil field layering water injection string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503110U true CN205503110U (en) | 2016-08-24 |
Family
ID=56736186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620286913.9U Expired - Fee Related CN205503110U (en) | 2016-04-01 | 2016-04-01 | Offshore oil field layering water injection string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681159A (en) * | 2017-10-17 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of oil field multitube separate layer water injection string |
| CN111173483A (en) * | 2018-11-09 | 2020-05-19 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
-
2016
- 2016-04-01 CN CN201620286913.9U patent/CN205503110U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681159A (en) * | 2017-10-17 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of oil field multitube separate layer water injection string |
| CN109681159B (en) * | 2017-10-17 | 2021-02-02 | 中国石油化工股份有限公司 | Oil field multitube layering water injection string |
| CN111173483A (en) * | 2018-11-09 | 2020-05-19 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN111173483B (en) * | 2018-11-09 | 2022-03-29 | 中国石油化工股份有限公司 | Time-sharing water injection pipe column and time-sharing water injection method |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709556B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |