CN109025892A - Leakage method is tested in sand washing below the set height of casing deformation well - Google Patents
Leakage method is tested in sand washing below the set height of casing deformation well Download PDFInfo
- Publication number
- CN109025892A CN109025892A CN201810932351.4A CN201810932351A CN109025892A CN 109025892 A CN109025892 A CN 109025892A CN 201810932351 A CN201810932351 A CN 201810932351A CN 109025892 A CN109025892 A CN 109025892A
- Authority
- CN
- China
- Prior art keywords
- casing deformation
- sand washing
- deformation well
- set height
- expander
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 84
- 238000005406 washing Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 62
- 238000007689 inspection Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010008 shearing 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B47/00—Survey of boreholes or wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides sand washings below a kind of set height of casing deformation well to test leakage method, it is operated using sand washing leak testing device below the set height of casing deformation well, sand washing leak testing device below the set height of casing deformation well includes oil pipe, the expander being connected with oil pipe and the ball seat that expander lower end is arranged in, and leakage method is tested in sand washing below the set height of casing deformation well the following steps are included: step S10, transferring sand washing leak testing device below the set height of casing deformation well to the setting position of casing deformation well；Step S20, make oil pipe connection cementing truck carry out sand washing operation, after the completion of sand washing operation, above mention the set height of casing deformation well or less sand washing leak testing device to test leakage position；Step S30, it pitching and suppresses into oil pipe, increase expander outer diameter and be bonded with the inner wall of casing deformation well, check the casing deformation well situation tested and leak position or more；Step S40, after to be checked, persistently suppress above mentioned after expander retraction so that ball seat is fallen and recycle casing deformation well set height below sand washing leak testing device.
Description
Technical field
The present invention relates to oilfield downhole operation method fields, and in particular to leakage is tested in sand washing below a kind of set height of casing deformation well
Method.
Background technique
Oil well repairing operation at present, sand washing, test leakage be common working procedure, every kind of construction will carry out one-trip string
Rountrip.It is a kind of major diameter tool due to testing leakage packer, the operation well become for there is set, major diameter tests leakage packing
Device easily causes card tubing string accident when can not become lift pipe string by set height or by set, tests leakage and often becomes in set with enterprising
Row, set, which becomes position below, can not detect casing leakage situation.And need to carry out drifting operation before oil well tests leakage, guarantee envelope
Every device can tripping in, so sand washing, testing leakage, process will carry out sand washing, drifting, test removing for three times tubing strings of leakage twice, greatly
It is big to influence production timeliness, increase the workload and labor intensity of operating worker.
Summary of the invention
The present invention provides sand washings below a kind of set height of casing deformation well to test leakage method, to reach the next time for reducing tubing string
Several purposes further decreases the workload and labor intensity of operating worker.
The technical solution adopted by the present invention to solve the technical problems is: leakage is tested in sand washing below a kind of set height of casing deformation well
Method is operated using sand washing leak testing device below the set height of casing deformation well, and neglected loading is tested in sand washing below the set height of casing deformation well
It sets including oil pipe, the expander being connected with oil pipe and the ball seat that expander lower end is arranged in, sand washing below the set height of casing deformation well
Leakage method is tested the following steps are included: step S10, sand washing leak testing device below the set height of casing deformation well transferred setting to casing deformation well
Positioning is set；Step S20, oil pipe connection cementing truck is made to carry out sand washing operation, after the completion of sand washing operation, the set for above mentioning casing deformation well becomes
Or less sand washing leak testing device to test leakage position；Step S30, pitching and suppressed into oil pipe, make expander outer diameter increase and with
The inner wall of casing deformation well is bonded, and checks the casing deformation well situation for testing leakage position or more；Step S40, after to be checked, persistently suppress with
Fall ball seat, after expander retraction after above mention and recycle casing deformation well set height below sand washing leak testing device.
Further, expander lower end is provided with pen tip, and step S10 includes: that the set height by casing deformation well or less sand washing is tested
Leakage device is transferred to the setting position of casing deformation well, carries out spy sand by pen tip, and determine sand face position.
Further, step S10 further include: carry out visiting sand for the first time when suspending weight declines 10KN to 20KN, above mention set and become
Sand washing leak testing device below the set height of well continues the set height for transferring casing deformation well or less sand washing after suspending weight restores normal and tests leakage
Device, and carry out second when suspending weight declines 10KN to 20KN and visit sand.
Further, step S30 includes pitching and suppressing into oil pipe 1, make expander outer diameter increase and with casing deformation well
Inner wall fitting carries out pressure testing and pressure stabilizing to the casing of casing deformation well, then checks the sleeve for testing leakage position or more.
Further, it after step S40 includes: to be checked, persistently suppresses, when pressure is reduced to zero, ball seat is fallen, to
Expander above mentions after bouncing back and recycles the set height of casing deformation well or less sand washing leak testing device.
The invention has the advantages that the present invention can reduce lower tubular column operations number, labor intensity of workers is reduced, is mentioned
Height production timeliness.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the set height of invention casing deformation well or less sand washing leak testing device.
Appended drawing reference in figure: 1, oil pipe；2, height is covered；3, expander；4, ball seat；5, ball collecting device；6, pen tip；7, layer of sand；
8, artificial bottom of a well.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the embodiment of the invention provides sand washing leak testing device below a kind of set height of casing deformation well, including oil
Pipe 1, expander 3 and ball seat 4.Expander 3 in tubular construction, fix and be connected to the lower end of oil pipe 1 by the upper end of expander 3.Ball
Seat 4 is connect by shear pin with the lower end of expander 3, and ball seat 4 can match with pitching and merge the lower end for blocking expander 3.
Casing deformation well has set height 2, and expander 3 has swelling state and retracted state, in swelling state, expander 3
Outer diameter it is identical as the internal diameter of casing deformation well, in retracted state, the outer diameter of expander 3 is less than the internal diameter of set height 2, and (set height is extremely
The minimum diameter of casing deformation well inner wall).
Expander 3 is in retracted state when going into the well, and the outer diameter of expander 3 and the outer diameter size of oil pipe 1 are identical simultaneously at this time
Less than the inner diameter size at set height 2.After the embodiment of the present invention is transferred to setting position, 1 upper end of oil pipe can be connected and be rushed
Sand pressure-applying unit, and carry out sand washing operation.After to sand washing operation, pitching can be carried out into oil pipe 1, makes pitching and ball seat
With the lower end for blocking expander 3 is merged, continue to pressurize into oil pipe 1 at this time, since 3 lower end of expander blocks, liquid can not be just
It often flows out and pressure in expander 3 is caused to increase, and then keep the increase of 3 outer diameter of expander identical as the internal diameter of casing deformation well, i.e., it is swollen
Swollen state can carry out testing leakage operation in this state.After operating, persistent pressure is greater than pressure and cuts
The shearing limit that pin can bear is cut, shear pin is cut, and ball seat 4 and pitching release the closure to expander 3, expander
3 bounce back to retracted state, can above mention the present embodiment to ground at this time.
Specifically, expander 3 lower end setting is connected with receive ball cover cylinder, receive ball cover cylinder in be provided with for collect pitching and
The ball collecting device 5 of ball seat 4.After expander 3 suppresses the limit pressure that can bear to shear pin, ball seat 4 and pitching are along liquid
Body flow direction, which enters, to be received in ball cover cylinder and is recycled by ball collecting device 5.Wherein, which is the prior art, and specific structure is herein not
It is repeated again.
As shown in Figure 1, the lower end of casing deformation well is provided with artificial bottom of a well 8 and layer of sand 7.The lower end for receiving ball cover cylinder is provided with pen tip
6.The position of layer of sand 7 can be determined in down-hole operation by the pen tip 6.
The present invention also provides sand washings below a kind of set height of casing deformation well to test leakage method, use the set height of casing deformation well with
Lower sand washing leak testing device is operated, sand washing below the set height of casing deformation well test leakage method the following steps are included:
Step S10, sand washing leak testing device below the set height of casing deformation well is transferred to the setting position of casing deformation well.
Step S20, so that oil pipe 1 is connected cementing truck progress sand washing operation and above mention the set of casing deformation well after the completion of sand washing operation
Sand washing leak testing device below height to test leakage position.
Step S30, it pitching and suppresses into oil pipe 1, increase 3 outer diameter of expander and be bonded with the inner wall of casing deformation well, inspection
Casing deformation well situation more than examination leakage position.
Step S40, it after to be checked, persistently suppresses so that ball seat 4 is fallen, above mentions and recycle after the retraction of expander 3
Sand washing leak testing device below the set height of casing deformation well.
Wherein, step S10 includes: that the set height by casing deformation well or less sand washing leak testing device is transferred to the setting position of casing deformation well
It postpones, carries out visiting sand for the first time by pen tip 6 when suspending weight declines 10KN to 20KN, above propose the set height or less sand washing and test leakage
Device continues the set height by casing deformation well or less sand washing leak testing device and transfers to the setting of casing deformation well after suspending weight restores normal
Position carries out second by pen tip 6 when suspending weight declines 10KN to 20KN and visits sand, so that it is determined that the position of layer of sand 7.
Step S30 includes pitching and suppressing into oil pipe 1, increases 3 outer diameter of expander and is bonded with the inner wall of casing deformation well,
Pressure testing and pressure stabilizing are carried out to the casing of casing deformation well, then check the sleeve for testing leakage position or more.The specific expansion of expander 3
Mode refers to embodiment of the top about sand washing leak testing device below the set height of casing deformation well.
It after step S40 includes: to be checked, persistently suppresses, when pressure is reduced to zero, ball seat 4 is fallen, to expander 3
It is above mentioned after retraction and recycles the set height of casing deformation well or less sand washing leak testing device.Ball seat 4 and pitching can enter receipts ball after falling
In device 5, below the upper set height for mentioning casing deformation well when sand washing leak testing device, recycling can be above proposed together.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
When sand washing leak testing device below the set height of casing deformation well enters well progress sand washing operation, expander 3 is in retracted state,
The outer diameter size of outer diameter and oil pipe 1 is no different, and can smoothly pass in and out set 2 present position of height, completes the set sand washing below of height 2
Operation.
It tests before leakage without carrying out drifting operation, after the completion of sand washing, determines to test leakage position, pressurize after pitching to oil pipe 1, it is swollen
Swollen body 3 is close to the inner wall of casing deformation well after gradually expanding, the leakage above sleeve in position is tested in casing pressure test inspection.
It tests after the completion of leakage, can continue to pressurize into oil pipe 1, destroy ball seat 4, expander 3 is bounced back into well state, and sand washing is tested
Fistulae column can be from covering 2 present position of height smoothly out.
The present invention can reduce lower tubular column operations number, reduce labor intensity of workers, improve production timeliness.
The above, only specific embodiments of the present invention cannot limit the range that invention is implemented with it, so it is equivalent
The displacement of component, or according to equivalent variations made by the invention patent protection scope and modification, should all still fall within what this patent was covered
Scope.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technical solution, technical solution with
Use can be freely combined between technical solution.
Claims (5)
1. leakage method is tested in sand washing below a kind of set height of casing deformation well, using sand washing leak testing device below the set height of casing deformation well into
Row operates, and sand washing leak testing device includes oil pipe (1), the expander (3) being connected with oil pipe (1) below the set height of the casing deformation well
Ball seat (4) with setting in expander (3) lower end, which is characterized in that sand washing below the set height of casing deformation well tests leakage method and includes
Following steps:
Step S10, sand washing leak testing device below the set height of the casing deformation well is transferred to the setting position of the casing deformation well；
Step S20, so that oil pipe (1) connection cementing truck is carried out sand washing operation, after the completion of the sand washing operation, above mention the set and become
Sand washing leak testing device below the set height of well to test leakage position；
Step S30, it to the interior pitching of oil pipe (1) and suppresses, expander (3) outer diameter is made to increase and paste with the inner wall of the casing deformation well
It closes, the casing deformation well situation of leakage position or more is tested described in inspection；
Step S40, after to be checked, continue to suppress to oil pipe (1) so that ball seat (4) is fallen, after expander (3) retraction on
It mentions and recycles the set height of the casing deformation well or less sand washing leak testing device.
2. leakage method, expander (3) the lower end setting are tested in sand washing below the set height of casing deformation well according to claim 1
There are pen tip (6), which is characterized in that the step S10 includes: the decentralization of the set height by the casing deformation well or less sand washing leak testing device
To the setting position of the casing deformation well, spy sand is carried out by pen tip (6), and determine sand face position.
3. leakage method is tested in sand washing below the set height of casing deformation well according to claim 2, which is characterized in that the step
S10 further include: carry out visiting sand for the first time when suspending weight declines 10KN to 20KN, above propose the set height of the casing deformation well or less sand washing
Leak testing device continues the set height for transferring the casing deformation well or less sand washing leak testing device after suspending weight restores normal, and in suspending weight
Second, which is carried out, when declining 10KN to 20KN visits sand.
4. leakage method is tested in sand washing below the set height of casing deformation well according to claim 1, which is characterized in that step S30 packet
It includes to the interior pitching of oil pipe (1) and suppresses, increase expander (3) outer diameter and be bonded with the inner wall of the casing deformation well, to casing deformation well
Casing carry out pressure testing and pressure stabilizing, then check described in test the described sleeve pipe situation of leakage position or more.
5. leakage method is tested in sand washing below the set height of casing deformation well according to claim 1, which is characterized in that step S40 packet
It includes: after to be checked, continuing to suppress in oil pipe (1), when pressure is reduced to zero, the ball seat (4) is fallen, to expander
(3) it is above mentioned after bouncing back and recycles the set height of the casing deformation well or less sand washing leak testing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932351.4A CN109025892A (en) | 2018-08-16 | 2018-08-16 | Leakage method is tested in sand washing below the set height of casing deformation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810932351.4A CN109025892A (en) | 2018-08-16 | 2018-08-16 | Leakage method is tested in sand washing below the set height of casing deformation well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109025892A true CN109025892A (en) | 2018-12-18 |
Family
ID=64630591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810932351.4A Pending CN109025892A (en) | 2018-08-16 | 2018-08-16 | Leakage method is tested in sand washing below the set height of casing deformation well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109025892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066001A (en) * | 2021-11-03 | 2023-05-05 | 中国石油天然气股份有限公司 | Hydraulic shaping method for sleeve-type well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005059304A1 (en) * | 2003-12-11 | 2005-06-30 | Shell Internationale Research Maatschappij B.V. | Method of creating a zonal isolation in an underground wellbore |
| CN202325323U (en) * | 2011-11-22 | 2012-07-11 | 刘传礼 | underground operation tool integrated with sand washing, paraffin scraping, sealing and separating |
| CN203022643U (en) * | 2012-11-03 | 2013-06-26 | 中国石油化工股份有限公司 | Loss oil layer double-tube continuous sand removal tubular column |
| CN106285551A (en) * | 2016-09-08 | 2017-01-04 | 中国石油天然气股份有限公司 | Sand washing concentric tube packer |
| CN206309291U (en) * | 2016-11-21 | 2017-07-07 | 中国石油天然气股份有限公司 | A kind of sand washing, pressure testing axle-linked cable-car |
| CN207093070U (en) * | 2017-05-26 | 2018-03-13 | 中国石油天然气股份有限公司 | Casing deformation well Tube-colume for seanching leakage area |
-
2018
- 2018-08-16 CN CN201810932351.4A patent/CN109025892A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005059304A1 (en) * | 2003-12-11 | 2005-06-30 | Shell Internationale Research Maatschappij B.V. | Method of creating a zonal isolation in an underground wellbore |
| CN202325323U (en) * | 2011-11-22 | 2012-07-11 | 刘传礼 | underground operation tool integrated with sand washing, paraffin scraping, sealing and separating |
| CN203022643U (en) * | 2012-11-03 | 2013-06-26 | 中国石油化工股份有限公司 | Loss oil layer double-tube continuous sand removal tubular column |
| CN106285551A (en) * | 2016-09-08 | 2017-01-04 | 中国石油天然气股份有限公司 | Sand washing concentric tube packer |
| CN206309291U (en) * | 2016-11-21 | 2017-07-07 | 中国石油天然气股份有限公司 | A kind of sand washing, pressure testing axle-linked cable-car |
| CN207093070U (en) * | 2017-05-26 | 2018-03-13 | 中国石油天然气股份有限公司 | Casing deformation well Tube-colume for seanching leakage area |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066001A (en) * | 2021-11-03 | 2023-05-05 | 中国石油天然气股份有限公司 | Hydraulic shaping method for sleeve-type well |
| CN116066001B (en) * | 2021-11-03 | 2024-04-26 | 中国石油天然气股份有限公司 | Hydraulic shaping method for sleeve-type well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |