CN203925468U - A kind of oil-water well is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string - Google Patents
A kind of oil-water well is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string Download PDFInfo
- Publication number
- CN203925468U CN203925468U CN201420248814.2U CN201420248814U CN203925468U CN 203925468 U CN203925468 U CN 203925468U CN 201420248814 U CN201420248814 U CN 201420248814U CN 203925468 U CN203925468 U CN 203925468U
- Authority
- CN
- China
- Prior art keywords
- packer
- altering
- testing
- test
- alter
- 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
Links
Abstract
The utility model relates to a kind of oil-water well and tests and alter tubing string and use this to test the system of altering of testing of altering tubing string, comprise for being arranged at and up and down between two groups of perforations of sleeve pipe that upper and lower two-layer oil reservoir of altering to be tested is corresponding, the first packer being communicated with successively by central tube, control valve and the second packer, described control valve is the constant pressure valve for making when the setting pressure to be communicated with inside and outside oil pipe, one of them in the first packer and the second packer is for to alter packer for testing of altering tested in the position between upper and lower two-layer oil reservoir, another is for at the described sealed packer of testing of altering packer and in the time setting state, it is tested envelope of testing.When the utility model is judged altering groove outside managing, need not change to test and alter packer location and just can alter to testing the effect that sets of packer and judge, therefore can avoid altering the bad erroneous judgement of carrying out of packer setting owing to testing, improve to test and altered accuracy rate and reliability, reduce workover treatment cost, save the well workover time, enhance productivity.
Description
Technical field
The utility model relates to a kind of oil-water well and tests and alter tubing string and use this to test the system of altering of testing of altering tubing string.
Background technology
In oilfield development process, part oil-water well is because of the acting in conjunction of the factors such as cementing quality, perforation vibrations, casing corrosion, sand production in oil, cause between sleeve pipe periphery wall and cement sheath or cement sheath and the borehole wall alter logical, the i.e. outer groove of altering of pipe, affect normal production and the oil recovery rate of oil-water well, therefore need oil-water well to test and alter operation, wherein packer tests that to alter be conventional method, it is mainly cover platen press and press over system that existing packer is tested the method for altering, and it is that single packer is tested and altered tubing string that existing packer is tested tubing string conventional in the method for altering.
Existing single packer is tested and is altered tubing string and comprise sleeve pipe, sleeve pipe along its axially spaced-apart be provided with upper and lower two groups for the perforation corresponding with corresponding oil reservoir position, perforation is communicated with casing tube internal hole with sleeve pipe peripheral space, in sleeve pipe, be coated with packer, packer upper end is connected with oil pipe, lower end is connected with and arrives the ball-and-seat that makes the control valve in flow direction sleeve pipe, the oil pipe bottom of the connection of control valve below be provided with liquid for making oil jacket annular space to enter oil pipe when certain value when fluid pressure in oil pipe, when use, single packer is tested and altered tubing string and transfer to be tested channeling bit and put, and make between two groups of perforations that packer upwards arranges at quill, make control valve be positioned at perforation below, top simultaneously, test while altering, make packer setting, in oil pipe, squeeze into hydraulic pressure, in the time that hydraulic pressure reaches certain value, liquid can be washed choke valve open and in the casing space of flow direction control valve periphery, observe in sleeve pipe and whether have overflow, if sleeve pipe is interior without overflow, can affirm that this place is without altering groove, in the time having overflow in sleeve pipe, may be to alter groove and make liquid enter the gap between sleeve pipe and cement sheath from the perforation corresponding with bottom oil reservoir due to existence, and enter the sleeve pipe of packer top and overflow by the perforation on the sleeve pipe corresponding with top oil reservoir, or make liquid upwards overflow from the gap between packer and internal surface of sleeve pipe because packer unsealing is good, and therefore also needing packer to test envelope, the method for testing envelope employing is to carry to position more than perforated interval and test envelope testing to alter on tubing string, this method of altering of testing is altered tubing string position owing to need to changing to test in the time packer being tested to envelope, therefore likely because casing deformation etc. is former thereby make packer set bad and set well in the above position of perforated interval testing to channel bit to put, there is the outer groove of altering of pipe thereby be just likely mistaken for because packer setting is bad.
Utility model content
the purpose of this utility model is to propose a kind ofly can accurately judge whether oil-water well exists the outer oil-water well of altering groove of pipe to test and alter tubing string.The utility model also provides a kind of above-mentioned system of altering of testing of altering tubing string of testing that uses.
for addressing the above problem, in the utility model a kind of oil-water well test alter tubing string adopt technical scheme be:
a kind of oil-water well is tested and is altered tubing string, comprise for being arranged at and the first packers between two groups of perforations, that be communicated with successively by central tube, control valve and second packer up and down of the sleeve pipe that upper and lower two-layer oil reservoir of altering to be tested is corresponding, described control valve is the constant pressure valve for making when the setting pressure to be communicated with inside and outside oil pipe, and one of them in the first packer and the second packer is for for the position between upper and lower two-layer oil reservoir is tested, testing of altering altered packer, another is for at the described sealed packer of testing of altering packer and in the time setting state, it is tested envelope of testing.
describedly test that to alter packer be mechanical setting type packer.
described testing altered packer and tested sealed packer below described in being positioned at.
described control valve is restriction choke.
in the utility model, use above-mentioned test alter testing of tubing string alter system adopt technical scheme be:
test the system of altering, comprise sleeve pipe, described sleeve pipe is axially provided with at least two groups along it and is respectively used to perforation corresponding to corresponding oil reservoir upwards distributing with quill, in sleeve pipe, be coated with to test and alter tubing string, described testing altered tubing string and comprised and being arranged between two groups of perforations that upper and lower two-layer oil reservoir of altering to be tested is corresponding, the first packer being communicated with successively by central tube, control valve and the second packer, described control valve is the constant pressure valve for making when the setting pressure to be communicated with inside and outside oil pipe, one of them in the first packer and the second packer is for to alter packer for testing of altering tested in the position between upper and lower two-layer oil reservoir, another is for at the described sealed packer of testing of altering packer and in the time setting state, it is tested envelope of testing.
describedly test that to alter packer be mechanical setting type packer.
Described testing altered packer and tested sealed packer below described in being positioned at.
Described control valve is restriction choke.
A kind of oil-water well the utility model proposes is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string, in sleeve pipe, be coated with to test and alter tubing string, test and alter testing sealed packer, control valve and testing and alter packer all between upper and lower two-layer oil reservoir of altering to be tested of tubing string, in use, first make to test and alter packer setting, beat hydraulic pressure from the annular space between oil pipe and sleeve pipe, if in oil pipe without overflow, can judge without the outer groove of altering of pipe, if there is overflow in oil pipe, be likely test alter packer sealing bad and make liquid from testing the space of altering between packer and sleeve pipe and flowing out and by oil pipe bottom to overflow in oil pipe, or the outer groove of altering of existence pipe between upper and lower oil reservoir, now making to test sealed packer sets, from oil pipe, beat hydraulic pressure, in the time that fluid pressure reaches certain value, control valve is opened, and enter to test and alter packer and test the annular space between sealed packer, the pressure of monitoring in this annular space changes, if pressure is constant, can judge and test that to alter packer setting good, oil pipe overflow is owing to there being the outer groove of altering of pipe, if pressure changes, packer setting is bad, needs further after inspection packer setting effect, to test and alter again.In the utility model to managing the outer groove of altering while judging, need not change to test and alter packer location and just can alter to testing the effect that sets of packer and judge, therefore can avoid altering the bad erroneous judgement of carrying out of packer setting owing to testing, improve to test and altered accuracy rate and reliability, reduce workover treatment cost, save the well workover time, enhance productivity.
Brief description of the drawings
Fig. 1 is the use state diagram that a kind of oil-water well of the present utility model is tested the embodiment that alters tubing string, is also in the utility model, to use the above-mentioned structural representation of testing the system of altering of altering tubing string of testing simultaneously.
Detailed description of the invention
A kind of oil-water well of the present utility model is tested the embodiment of the system of altering: as shown in Figure 1, this oil-water well is tested the system of altering and is comprised sleeve pipe 6, sleeve pipe 6 axially offers upper and lower two groups of perforations corresponding with upper and lower two-layer oil reservoir respectively along it, in sleeve pipe 6, be coated with to test and alter tubing string, test and alter tubing string and comprise and being arranged between two groups of perforations that oil reservoir up and down of altering to be tested is corresponding, the first packer being communicated with successively by central tube, control valve and the second packer, one of them of the first packer and the second packer is for to alter packer 4 for the position between upper and lower two-layer oil reservoir being tested to testing of altering, another for for described test alter that packer tests envelope to it in the time setting state test sealed packer 2, testing sealed packer 2 is positioned to test and alters packer 4 tops, test sealed packer 2 and adopt K344 packer, this packer adopts hydraulic setting, the inflatable packer of hydraulic pressure deblocking, test and alter packer 4 and adopt Y221 packer, this packer is that employing rotation tubing string sets, the compression packer of upper body tubing string deblocking, test sealed packer 2 and test to alter and between packer 4, be connected with restriction choke 3, test sealed packer 2 tops and be connected with oil pipe 1, test and alter packer 4 belows and be connected with oil pipe 1, test the bottom of altering packer 4 below oil pipes 1 and be provided with the ball-and-seat 5 that can only make sleeve pipe 6 and the liquid of the annular space of oil pipe 1 enter oil pipe 1, test sealed packer 2 and test and alter packer 4 and be arranged between the upper and lower two groups of perforations of sleeve pipe 6.
When use, alter tubing string and transfer the top oil reservoir A altering to be tested and the oil reservoir B place, bottom to oil-water well testing, on sleeve pipe 6, be provided with upper and lower two groups of perforations, upper and lower two groups of perforations are corresponding with top oil reservoir A and bottom oil reservoir B respectively, now test and alter packer 4 and test sealed packer 2 between top oil reservoir A and bottom oil reservoir B, testing and altering packer is this mechanical setting type packer that rotation tubing string sets, therefore make to test by rotation tubing string and alter packer 4 and set, from sleeve pipe 6, squeeze into the liquid of setting pressure, if oil pipe 1 is interior without overflow, illustrate between this top oil reservoir and bottom oil reservoir, do not exist pipe outer alter groove and test alter packer 4 and set, if have overflow in oil pipe 1, likely to alter groove between top oil reservoir A and bottom oil reservoir B, and being entered by perforation corresponding with oil reservoir place, top on sleeve pipe 6, liquid in sleeve pipe 6 alters in groove, and then enter in sleeve pipe 6 by the perforation at oil reservoir B place, bottom, the ball-and-seat 5 of final pushing tow oil pipe 1 bottom and overflow from oil pipe 1, also may be due to test alter packer 4 set bad make to test to alter between packer 4 and sleeve pipe 6 inner tubal walls leave gap, liquid in sleeve pipe 6 is flowed into and is tested in the oil jacket annular space of altering packer 4 belows by this gap, the ball-and-seat 5 of final pushing tow oil pipe 1 bottom and overflow from oil pipe 1, therefore need the sealing effectiveness of altering packer 4 to testing to detect, keep testing the state that sets of altering packer 4, from oil pipe 1, squeeze into the liquid of certain pressure, liquid is stopped by restriction choke 3, owing to testing the K344 packer of sealed packer employing hydraulic setting formula, therefore under fluid pressure effect, testing sealed packer 2 sets, continue to squeeze into hydraulic pressure, along with the continuous increase restriction choke 3 of pressure is opened, liquid enters testing sealed packer 2 and testing in the oil jacket annular space of altering between packer 4 after setting by restriction choke 3, squeeze into the hydraulic pressure of 10MPa and keep 10min, if the pressure drop in oil pipe 1 is no more than 0.5Mpa, can judge to test and alter packer 4 sealings reliably, thereby the overflow that can judge in oil pipe 1 is to alter because existence pipe is outer due to groove, if this place's pressure decreased exceedes 0.5Mpa, represent that packer setting is bad, after needing further to check, test and alter again.Adopt this to test and alter tubing string, can test the performance that sets of altering packer 4 alter packer 4 position in the situation that to testing and detect not needing to change, thereby avoided altering packer 4 and setting and be badly mistaken for that pipe is outer alters groove owing to testing, improved to test and altered accuracy rate.
Test in the present embodiment and alter the Y221 packer that packer adopts rotation tubing string to set, test the K344 packer that sealed packer adopts hydraulic setting, in other embodiment of the present utility model, test and alter packer and also can adopt the mode of setting to set for lifting tubing string, self-sealing sets or lower instrument beating type other mechanical types such as sets and set the packer of mode, testing sealed packer need to adopt difference to set mode packer according to present position difference, be positioned to test and alter packer when top when testing sealed packer, testing sealed packer can adopt and lift tubing string and set, self-sealing sets, lower instrument beating type sets or fluid pressure type set in any one packer, be positioned to test and alter packer when below when testing sealed packer, testing sealed packer can adopt and lift tubing string and set, self-sealing sets or lower instrument beating type set in the packer of any one mechanical setting type.
Control valve is restriction choke in the present embodiment, and in other embodiment of the present utility model, control valve also can adopt the constant pressure valves such as overflow valve.
Testing in the present embodiment sealed packer is arranged to test and alters packer top, in other embodiment of the present utility model, also can be arranged to test and alter below packer testing sealed packer, test sealed packer and test and alter packer between upper and lower two groups of perforations as long as ensure.
In the utility model a kind of oil-water well test alter tubing string structure as shown in Figure 1, its structure with in above-described embodiment, test that to alter the structure of tubing string identical, do not repeat them here.
Claims (8)
1. an oil-water well is tested and is altered tubing string, it is characterized in that: comprise for being arranged at and up and down between two groups of perforations of sleeve pipe that upper and lower two-layer oil reservoir of altering to be tested is corresponding, the first packer being communicated with successively by central tube, control valve and the second packer, described control valve is the constant pressure valve for making when the setting pressure to be communicated with inside and outside oil pipe, one of them in the first packer and the second packer is for to alter packer for testing of altering tested in the position between upper and lower two-layer oil reservoir, another is for at the described sealed packer of testing of altering packer and in the time setting state, it is tested envelope of testing.
2. oil-water well according to claim 1 is tested and is altered tubing string, it is characterized in that: described in test that to alter packer be mechanical setting type packer.
3. oil-water well according to claim 1 and 2 is tested and is altered tubing string, it is characterized in that: described in test and alter packer and test sealed packer below described in being positioned at.
4. oil-water well according to claim 3 is tested and is altered tubing string, it is characterized in that: described control valve is restriction choke.
5. test the system of altering, comprise sleeve pipe, described sleeve pipe is axially provided with at least two groups along it and is respectively used to perforation corresponding to corresponding oil reservoir upwards distributing with quill, in sleeve pipe, be coated with to test and alter tubing string, it is characterized in that: described in test and alter tubing string and comprise and being arranged between two groups of perforations that upper and lower two-layer oil reservoir of altering to be tested is corresponding, the first packer being communicated with successively by central tube, control valve and the second packer, described control valve is the constant pressure valve for making when the setting pressure to be communicated with inside and outside oil pipe, one of them in the first packer and the second packer is for to alter packer for testing of altering tested in the position between upper and lower two-layer oil reservoir, another is for at the described sealed packer of testing of altering packer and in the time setting state, it is tested envelope of testing.
6. the system of altering of testing according to claim 5, is characterized in that: described in test that to alter packer be mechanical setting type packer.
7. according to the system of altering of testing described in claim 5 or 6, it is characterized in that: described in test and alter packer and test sealed packer below described in being positioned at.
8. the system of altering of testing according to claim 7, is characterized in that: described control valve is restriction choke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248814.2U CN203925468U (en) | 2014-05-15 | 2014-05-15 | A kind of oil-water well is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248814.2U CN203925468U (en) | 2014-05-15 | 2014-05-15 | A kind of oil-water well is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925468U true CN203925468U (en) | 2014-11-05 |
Family
ID=51821297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420248814.2U Expired - Fee Related CN203925468U (en) | 2014-05-15 | 2014-05-15 | A kind of oil-water well is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134184A (en) * | 2015-09-11 | 2015-12-09 | 中国石油天然气股份有限公司 | Process pipe string for horizontal well continuous channeling verification and method |
| CN106854987A (en) * | 2015-12-08 | 2017-06-16 | 中国石油天然气股份有限公司 | The detection means and method of tail pipe blowby |
| CN107178363A (en) * | 2017-05-26 | 2017-09-19 | 中国石油天然气股份有限公司 | Casing deformation well Tube-colume for seanching leakage area and its look for leakage technique |
-
2014
- 2014-05-15 CN CN201420248814.2U patent/CN203925468U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134184A (en) * | 2015-09-11 | 2015-12-09 | 中国石油天然气股份有限公司 | Process pipe string for horizontal well continuous channeling verification and method |
| CN106854987A (en) * | 2015-12-08 | 2017-06-16 | 中国石油天然气股份有限公司 | The detection means and method of tail pipe blowby |
| CN106854987B (en) * | 2015-12-08 | 2020-05-08 | 中国石油天然气股份有限公司 | Tail pipe blowby detection device and method |
| CN107178363A (en) * | 2017-05-26 | 2017-09-19 | 中国石油天然气股份有限公司 | Casing deformation well Tube-colume for seanching leakage area and its look for leakage technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101864921A (en) | Well completion and oil production string of horizontal well and well completion and oil production processes thereof | |
| CN104533356B (en) | The method and oil production by layer method of a kind of two-layer automatic control oil production by layer | |
| CN203925468U (en) | A kind of oil-water well is tested and is altered tubing string and use this to test the system of altering of testing of altering tubing string | |
| CN107762444B (en) | Integrated tubular column for well cementation and sand prevention and use method | |
| CN105019858B (en) | The plug cementing cement head device of hp-ht well three and well cementing operation method | |
| CN206111126U (en) | Close inserting of independent liquid accuse sliding sleeve formula | |
| CN107489394A (en) | A kind of three oval experimental provision of open hole packer | |
| CN206830131U (en) | A kind of water injection well sand setting constant pressure check valve | |
| CN206158728U (en) | Bore oil recovery control valve pressure ga(u)ge damper | |
| CN107165604A (en) | Liquid-proof fluctuation drainage device and its application method | |
| CN210134883U (en) | Injection-production integrated pipe column in same well | |
| CN108442916A (en) | Horizontal well bore hole screen casing damage testing tubing string | |
| CN104153740B (en) | Differential oil jacket coupling cock | |
| CN104314511B (en) | A kind of compression underseal packer | |
| CN203347735U (en) | Self-checking and self-sealing releasing packer | |
| CN206309359U (en) | Small interlayer water plugging string | |
| CN105156061B (en) | A kind of underground washing well water filling intubation seal device | |
| CN203285391U (en) | Pressure-differential oil jacket communication valve | |
| CN102383764A (en) | Sand-blocking-preventing oil-extraction production tubular column | |
| CN201574746U (en) | Layered testing pump for oilfield producing well | |
| CN203129998U (en) | Device capable of washing well | |
| CN205779597U (en) | A kind of underground hollow oil well pump | |
| CN204851081U (en) | Middle part shut -in well pours into high temperature water under high pressure horizontal well completion pipe string of low -gravity liquid into | |
| CN107762459A (en) | Separate layer water injection string | |
| CN104675357B (en) | Simple wellhead device and application method thereof |
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: 20141105 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |