CN203547725U - Multi-purpose downhole monitoring pipe column - Google Patents
Multi-purpose downhole monitoring pipe column Download PDFInfo
- Publication number
- CN203547725U CN203547725U CN201320675326.5U CN201320675326U CN203547725U CN 203547725 U CN203547725 U CN 203547725U CN 201320675326 U CN201320675326 U CN 201320675326U CN 203547725 U CN203547725 U CN 203547725U
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- China
- Prior art keywords
- monitors
- monitor
- pipe column
- groove
- downhole
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- 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 - Lifetime
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000003801 milling Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of downhole testing tools, and particularly relates to a multi-purpose downhole monitoring pipe column used for monitoring pressure and temperature parameters of a target stratum in the downhole operation process in an oil and gas field. The downhole monitoring pipe column is composed of a column body and monitors, a concentric hole is axially formed in the column body, a groove is formed in the outer wall of the column body, the monitors are installed in the groove, a cable clamp groove is formed in the outer wall of the middle of the column body in the radial direction, and cable clamps are fixed to the cable clamp groove and used for fixing the monitors in the radial direction. The multi-purpose downhole monitoring pipe column has the advantages that the concentric design is adopted for the pipe column, and a concentric runner is formed by the pipe column and a fracturing pipe column, so that a fracturing pitch ball and a testing instrument are placed down normally without being affected; the two monitors are adopted so that it can be avoided that due to a downhole liquid environment, the seal of one monitor is ineffective, and a circuit is corroded and can not record fracturing data; the cable clamps are additionally arranged outside the monitors for fixing the monitors, so that the monitors are more firmly fixed.
Description
Technical field
The utility model belongs to downhole testing technical field of tools, is specifically related to a kind of Multipurpose underground monitoring tubing string for monitor target zone pressure and temperature parameter in oil-gas field downhole operation process.
Background technology
ZL200920272775.9 discloses a kind of eccentric fracture real-time monitoring tubular column, tubing string and monitor two parts, consist of, on tubing string, lower contact is connected with fracturing string by box cupling, and tubing string axially has eccentric orfice, recessing on a side outer wall of wall thickness, monitor is placed in groove.There is following limitation in this patent: (1) eccentric type monitoring tubing string is connected by box cupling up and down with fracturing string in application process, although two tubing string external diameters are identical, but its inner flow passage decentraction, therefore in pressing crack construction process, spheroid and tester all can not pass through this monitoring tubing string inner flow passage smoothly; (2) eccentric type monitoring tubing string is equipped with a monitor, and due to the uncertainty of pit shaft internal conditions, monitor exists seal failure to cause the risk of circuit corrosion failure; (3) monitor is fixed by the form of fixing jackscrew and threaded engagement, once run into strenuous vibration and friction, will have shaft bottom fish risk.
Summary of the invention
The purpose of this utility model is that the inner flow passage decentraction that solves prior art existence causes spheroid and tester not to be lowered to smoothly, pit shaft internal conditions may cause monitor seal failure, monitor is fixed the problems such as insecure, and then a kind of Multipurpose underground monitoring tubing string is provided.
The technical solution of the utility model is:
The utility model is comprised of body and monitor, and body shaft, to having concentric holes, has groove on the outer wall of body, monitor is arranged in groove, body middle part outer wall radially has strain relief clamp pilot trench, and strain relief clamp is fixed on strain relief clamp pilot trench, for stationary monitoring instrument radially.
The beneficial effects of the utility model are: this tubing string adopts concentric type design, forms concentric runner with fracturing string, does not affect being normally lowered to of pressure break pitching and tester; Adopting two monitors is in order to prevent that wherein a monitor, because down-hole liquid environment causes instrument seal failure, causes circuit corrosion can not record the risk of pressure break data; The outside of monitor has increased strain relief clamp to be fixed, and makes monitor fixing more firm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing of A-A of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further described.
The specific embodiment
As shown in Figure 1, the utility model is comprised of body 1 and monitor 2, body 1 axially has concentric holes 10, on the outer wall of body 1, have groove 5, monitor 2 is arranged in groove 5, body 1 middle part outer wall radially has strain relief clamp pilot trench 6, and strain relief clamp 7 is fixed on strain relief clamp pilot trench 6, for stationary monitoring instrument 2 radially.
On the outer wall of described body 1, symmetry has 5, two monitors 2 of two grooves and is arranged on respectively in two grooves 5, can avoid one of them monitor 2 seal failure to cause monitored data incomplete.
Described groove 5 bottoms are provided with a boss, fixing jackscrew 8 is installed on boss, and withstands on monitor 2 bottoms, for axial restraint monitor 2.
Arc structure is arranged in described groove 5 upper ends, similar with monitor 2 superstructures, so that fixing jackscrew 8 is more firm when stationary monitoring instrument 2.
The symmetrical milling of former and later two outer walls of described body 1 becomes axial plane 9, so that monitoring tubing string is installed more firm.
Before use, first set the test interval section of monitor, then monitor is installed in monitoring tubing string.During use, after being connected with fracturing string, the utility model is lowered into precalculated position, in pressing crack construction process, monitor is according to the segment record fracturing section pit shaft internal pressure and temperature interval time setting, until pressing crack construction finishes, trip out after fracturing string the transfer of data on monitor to computer, for analyzing pressure break data, prepare.Inner flow passage of the present utility model and fracturing string inner flow passage slitless connection, do not affect being lowered to of pitching pressure break and tester; The utility model can be used in the multiple underground work processes such as pressure break, viscous crude well testing, profile control transfer drive.
Claims (5)
1. a Multipurpose underground monitoring tubing string, by body (1) and monitor (2), formed, it is characterized in that: body (1) axially has concentric holes (10), on the outer wall of body (1), have groove (5), monitor (2) is arranged in groove (5), body (1) middle part outer wall radially has strain relief clamp pilot trench (6), and it is upper that strain relief clamp (7) is fixed on strain relief clamp pilot trench (6), for stationary monitoring instrument (2) radially.
2. a kind of Multipurpose underground monitoring tubing string according to claim 1, it is characterized in that: on the outer wall of described body (1), symmetry has two grooves (5), two monitors (2) are arranged on respectively in two grooves (5), can avoid one of them monitor (2) seal failure to cause monitored data incomplete.
3. a kind of Multipurpose underground monitoring tubing string according to claim 1, is characterized in that: described groove (5) bottom is provided with a boss, and fixing jackscrew (8) is installed on boss, and withstands on monitor (2) bottom, for axial restraint monitor (2).
4. a kind of Multipurpose underground monitoring tubing string according to claim 1, is characterized in that: arc structure is arranged in described groove (5) upper end, identical with monitor (2) superstructure.
5. a kind of Multipurpose underground monitoring tubing string according to claim 1, is characterized in that: the symmetrical milling of former and later two outer walls of described body (1) becomes axial plane (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675326.5U CN203547725U (en) | 2013-10-29 | 2013-10-29 | Multi-purpose downhole monitoring pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675326.5U CN203547725U (en) | 2013-10-29 | 2013-10-29 | Multi-purpose downhole monitoring pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547725U true CN203547725U (en) | 2014-04-16 |
Family
ID=50465854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675326.5U Expired - Lifetime CN203547725U (en) | 2013-10-29 | 2013-10-29 | Multi-purpose downhole monitoring pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708595A (en) * | 2018-11-14 | 2019-05-03 | 中国石油天然气股份有限公司 | Down-hole casing damage testing method and device |
| CN112502691A (en) * | 2020-12-01 | 2021-03-16 | 中国石油天然气集团有限公司 | Dragging cylinder type underground permanent multi-point monitor and using method |
| RU2779625C1 (en) * | 2022-05-05 | 2022-09-12 | Общество С Ограниченной Ответственностью "Научно-Производственная Компания "Промсервис" | Container for lowering instruments on the tubing string |
-
2013
- 2013-10-29 CN CN201320675326.5U patent/CN203547725U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708595A (en) * | 2018-11-14 | 2019-05-03 | 中国石油天然气股份有限公司 | Down-hole casing damage testing method and device |
| CN112502691A (en) * | 2020-12-01 | 2021-03-16 | 中国石油天然气集团有限公司 | Dragging cylinder type underground permanent multi-point monitor and using method |
| RU2779625C1 (en) * | 2022-05-05 | 2022-09-12 | Общество С Ограниченной Ответственностью "Научно-Производственная Компания "Промсервис" | Container for lowering instruments on the tubing string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |