CN205955710U - But reducing sand control screen - Google Patents
But reducing sand control screen Download PDFInfo
- Publication number
- CN205955710U CN205955710U CN201620976327.7U CN201620976327U CN205955710U CN 205955710 U CN205955710 U CN 205955710U CN 201620976327 U CN201620976327 U CN 201620976327U CN 205955710 U CN205955710 U CN 205955710U
- Authority
- CN
- China
- Prior art keywords
- sand
- jurisdiction
- steel plate
- disc
- screen section
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model discloses a but reducing sand control screen, connect and the lower part connects, split type's multi -disc sand control screen piece and be located two fender sand steel sheets between the sand control screen piece including the dabber of connecting oil pipe, the upper portion at the both ends under the spindle of cover respectively that is used for connecting tool, and split type's multi -disc sand control screen piece and the profile that multi -disc fender sand steel sheet just in time constitutes a whole circumference, multi -disc sand control screen piece and multi -disc fender sand steel sheet are connected on upper portion joint and lower part joint through the hinge mechanism respectively, at natural state, certain space has between two adjacent sand control screen pieces, keep off the inboard the inside that keeps off in the space that the sand steel sheet is located two slice adjacent sand control screen pieces, at the reducing state, the hinge mechanism outwards expands, supports the split type sand control screen piece and keeps off the sand steel sheet and follow radial expansion simultaneously, makes split type's multi -disc sand control screen piece and the profile that multi -disc fender sand steel sheet just in time constitutes a whole circumference. The problem of the grit block up the testing string runner and bury with packer sand is solved.
Description
Technical field
The utility model is related to a kind of sand control screen, especially a kind of reducing sand control screen.
Background technology
Sand production is the difficult problem facing for a long time in loose sand Reservoir Development and tubing string job execution.Oil testing is made
For one kind of oil well pipe job execution, stratum production capacity under dynamic condition, fluidity data can be obtained.Existing construction technology, tubing string
Generally require to stay the two weeks even longer time in down-hole.In the process, due to strata pressure recovery and release and
The flowing of wellbore fluid in Oil testing, often causes formation sand production, and formation sand production one side can lead to test string to block,
So that Oil testing can not take entirely takes quasi- record；Another aspect stratum output sand can be piled up above packer, draws
Play packer cannot normally unseal, whole testing tool string sand can be led to when serious to bury shaft bottom, work progress is caused greatly
Difficulty, especially in multilayer zonal testing, tool string is longer in the time of underground work, the probability of this situation more
High.Therefore, in order to the formation sand production occurring during solving the problems, such as oil and gas well testing is it is proposed that a kind of pass through to apply well dynamic
Realize sand control screen reducing so as to be close to the borehole wall it is ensured that particulate sand can only be had to enter well by screen casing, realize oil well actively
Sand control.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of reducing sand control screen, and structure is simple, by ground
Face simple operations can achieve the expansion of sand control screen, solves sand and buries problem to the blocking of test string runner with packer sand.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of reducing sand control screen, bag
Include the mandrel of connected pipes, being respectively fitted over the upper connection of mandrel upper and lower ends and lower connector, point lobe for fastening means
The multi-disc sand screen section of jurisdiction of formula and be located at two panels sand screen section of jurisdiction between sand block steel plate, the multi-disc sand screen section of jurisdiction of split-type and
Multi-disc sand block steel plate just constitutes the profile in a full circle week, and multi-disc sand screen section of jurisdiction and multi-disc sand block steel plate pass through hinge respectively
Mechanism is connected in upper connection and lower connector；Between nature, adjacent two panels sand screen section of jurisdiction, there is certain sky
Gap, sand block steel plate is located at the inside in space for the inboard gear of adjacent two panels sand screen section of jurisdiction；In reducing state, linkage is outside
Expansion, supports split-type sand screen section of jurisdiction to be radially expanded with sand block steel plate simultaneously, make the multi-disc sand screen section of jurisdiction of split-type with
Multi-disc sand block steel plate just constitutes the profile in a full circle week.
Described linkage includes connecting upper connection and every sand screen section of jurisdiction, upper connection and every sand block steel plate
Multiple upper hinge mechanisms and connect lower connector and every sand screen section of jurisdiction, lower connector and every sand block steel plate multiple under
Portion's linkage, each linkage includes two hinge heads and is connected to the connecting rod between two hinge heads by bearing pin,
Connect two hinge heads of the upper hinge mechanism of upper connection and sand screen section of jurisdiction, one is fixed on sand screen section of jurisdiction inwall,
Another is fixed in upper connection, two hinge heads of the upper hinge mechanism of connection upper connection and sand block steel plate, one
It is fixed on sand block steel plate inwall, another is fixed in upper connection, connect the underneath hinges of lower connector and sand screen section of jurisdiction
Two hinge heads of mechanism, one is fixed on sand screen section of jurisdiction inwall, and another is fixed on lower connector, connects lower connector
With two hinge heads of the underneath hinges mechanism of sand block steel plate, one is fixed on sand block steel plate inwall, and another is fixed on bottom
On joint.
Described sand screen section of jurisdiction is 3.
Described sand screen section of jurisdiction is 3 of decile.
The beneficial effects of the utility model are：The possibility preventing sand from test string is blocked, realizes gained test data
Truer；Screen casing is fitted with the borehole wall, and Oil testing layer position annular space is taken in advance by screen casing, there is not sand in annular space
The possibility of middle accumulation, solves packer sand and buries problem, reduce the potential risk during Oil testing；Reusable；
Reduce multilayer Oil testing technology potential risk, provide effective technical support for the formation testing that becomes more meticulous.
Brief description
Fig. 1 is the utility model reducing sand control screen reducing pre-structure schematic diagram.
Fig. 2 is structural representation after the utility model reducing sand control screen reducing.
Fig. 3 is C-C profile in Fig. 1.
Fig. 4 is schematic diagram before the utility model reducing sand control screen reducing.
Fig. 5 is schematic diagram after the utility model reducing sand control screen reducing.
In figure, 1- upper connection；2- split-type sand screen section of jurisdiction；3- hinge head；4- bearing pin；5- connecting rod；6- mandrel；7-
Lower contact；8- sand block steel plate.
Specific embodiment
With reference to the accompanying drawings and detailed description the utility model is described in further detail：
As Figure 1-3, reducing sand control screen of the present utility model, including the mandrel 6 of connected pipes, is used for connecting work
Being respectively fitted over the upper connection 1 of mandrel 6 upper and lower ends and lower connector 7, the multi-disc sand screen section of jurisdiction 2 of split-type and be located at of tool
Sand block steel plate 8 between two panels sand screen section of jurisdiction 2, the multi-disc sand screen section of jurisdiction 2 of split-type and multi-disc sand block steel plate 8 are just constituted
The profile in one full circle week, multi-disc sand screen section of jurisdiction 2 and multi-disc sand block steel plate 8 are connected to upper connection by linkage respectively
1 and lower connector 7 on；Between nature, adjacent two panels sand screen section of jurisdiction 2, there is certain space, sand block steel plate 8 is located at
The inboard gear of adjacent two panels sand screen section of jurisdiction 2 is in the inside in space；In reducing state, linkage expands outwardly, and supports a point lobe
Formula sand screen section of jurisdiction and sand block steel plate are radially expanded simultaneously, make multi-disc sand screen section of jurisdiction 2 and the multi-disc sand block steel plate 8 of split-type
Just constitute the profile in a full circle week.
Described linkage includes connecting upper connection 1 and every sand screen section of jurisdiction 2, upper connection 1 and every sand block steel
Multiple upper hinge mechanisms of plate 8 and connect lower connector 7 and every sand screen section of jurisdiction 7, lower connector 7 and every sand block steel plate
8 multiple underneath hinges mechanisms, each linkage include two hinge heads 4 and by bearing pin 4 be connected to two hinge heads 4 it
Between connecting rod 5, connect two hinge heads 4 of the upper hinge mechanism of upper connection 1 and sand screen section of jurisdiction 2, one is fixed on
Sand screen section of jurisdiction 2 inwall, another is fixed in upper connection 1, connects the upper hinge machine of upper connection 1 and sand block steel plate 8
Two hinge heads 4 of structure, one is fixed on sand block steel plate 8 inwall, and another is fixed in upper connection 1, connects lower connector 7
With two hinge heads 4 of the underneath hinges mechanism of sand screen section of jurisdiction 2, one is fixed on sand screen section of jurisdiction 2 inwall, and another is fixed
On lower connector 7, connect two hinge heads 4 of the underneath hinges mechanism of lower connector 7 and sand block steel plate 8, one is fixed on
Sand block steel plate 8 inwall, another is fixed on lower connector 7.
Preferably, described sand screen section of jurisdiction 2 is 3.Described sand screen section of jurisdiction 2 is 3 of decile.
Use process of the present utility model is：After entering precalculated position under tubing string, apply axially upwardly displacement to lower connector
When, using the transformation of hinge movement, the connecting rod of linkage expands outwardly, and supports split-type sand control screen and sand block steel plate
It is radially expanded simultaneously, realize active sand control；After the completion of construction, pull lower connector, apply downward position to lower connector
Move, realize the withdrawal of sand control screen by the motion of linkage, so that whole tubing string is smoothly proposed from well.
Specifically, before Oil testing instrument is gone into the well, calculate position and the length of payzone, select and test zone phase
The length of the sand control screen joined is connected to and prepares into well in the middle of tool string.
, during entering well, sand control screen diameter and testing tool diameter close (see Fig. 4) are it is ensured that whole pipe string for this device
Being capable of smooth lower going-into-well bottom.After test string is lowered into precalculated position, apply axially upwardly displacement to lower connector 7, drive
Hinge head 3 on lower connector moves upwards, and because the distance between two hinge heads are horizontal fixed, connecting rod 5 rotates along hinge head 3,
Cause connecting rod 5 radially apart from elongated, drive split-type sand control screen 2 and sand block steel plate 8 outward expansion, be finally close to the borehole wall
(see Fig. 5).This form of construction work one side can prevent recovery and the release of strata pressure, causes the bulk that sandstone formation occurs
Sand enters well, on the other hand prevents the gone out sand in stratum from piling up in bore hole annulus.
After the completion of construction, apply downward displacement to lower connector 7, drive hinge head 3 and connecting rod 5 to do contrary to the above
Action, so that active sand control screen is radially withdrawn, smoothly realize tubing string and propose from well.
In sum, content of the present utility model is not limited in the above embodiments, in same area insighted it
Scholar can propose other embodiments within technological guidance's thought of the present utility model easily, but this embodiment is all wrapped
Include within the scope of the utility model.
Claims (4)
1. a kind of reducing sand control screen is it is characterised in that include the mandrel (6) of connected pipes, the difference for fastening means
It is enclosed within the upper connection (1) of mandrel (6) upper and lower ends and lower connector (7), the multi-disc sand screen section of jurisdiction (2) of split-type and be located at
Sand block steel plate (8) between two panels sand screen section of jurisdiction (2), the multi-disc sand screen section of jurisdiction (2) of split-type and multi-disc sand block steel plate (8)
Just constitute the profile in a full circle week, multi-disc sand screen section of jurisdiction (2) and multi-disc sand block steel plate (8) are respectively by linkage even
It is connected in upper connection (1) and lower connector (7)；In nature, have certain between adjacent two panels sand screen section of jurisdiction (2)
Space, sand block steel plate (8) is located at the inside in space for the inboard gear of adjacent two panels sand screen section of jurisdiction (2)；In reducing state, hinge
Mechanism expands outwardly, and supports split-type sand screen section of jurisdiction to be radially expanded with sand block steel plate simultaneously, makes the multi-disc sand control of split-type
Screen casing piece (2) and multi-disc sand block steel plate (8) just constitute all profiles of a full circle.
2. reducing sand control screen according to claim 1 it is characterised in that described linkage include connect top connect
Multiple upper hinge mechanisms of head (1) and every sand screen section of jurisdiction (2), upper connection (1) and every sand block steel plate (8) and connection
Lower connector (7) and multiple underneath hinges machines of every sand screen section of jurisdiction (7), lower connector (7) and every sand block steel plate (8)
Structure, each linkage includes two hinge heads (4) and the connecting rod being connected between two hinge heads (4) by bearing pin (4)
(5), connect upper connection (1) and sand screen section of jurisdiction (2) upper hinge mechanism two hinge heads (4), one be fixed on anti-
Sand sieve section of jurisdiction (2) inwall, another is fixed in upper connection (1), connects the top of upper connection (1) and sand block steel plate (8)
Two hinge heads (4) of linkage, one is fixed on sand block steel plate (8) inwall, and another is fixed in upper connection (1),
Connect two hinge heads (4) of the underneath hinges mechanism of lower connector (7) and sand screen section of jurisdiction (2), one is fixed on sand screen
Section of jurisdiction (2) inwall, another is fixed on lower connector (7), connects the underneath hinges of lower connector (7) and sand block steel plate (8)
Two hinge heads (4) of mechanism, one is fixed on sand block steel plate (8) inwall, and another is fixed on lower connector (7).
3. reducing sand control screen according to claim 1 is it is characterised in that described sand screen section of jurisdiction (2) is 3.
4. reducing sand control screen according to claim 3 is it is characterised in that described sand screen section of jurisdiction (2) is the 3 of decile
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620976327.7U CN205955710U (en) | 2016-08-29 | 2016-08-29 | But reducing sand control screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620976327.7U CN205955710U (en) | 2016-08-29 | 2016-08-29 | But reducing sand control screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205955710U true CN205955710U (en) | 2017-02-15 |
Family
ID=57980681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620976327.7U Withdrawn - After Issue CN205955710U (en) | 2016-08-29 | 2016-08-29 | But reducing sand control screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205955710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121594A (en) * | 2016-08-29 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of reducing sand control screen |
-
2016
- 2016-08-29 CN CN201620976327.7U patent/CN205955710U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121594A (en) * | 2016-08-29 | 2016-11-16 | 中国石油集团渤海钻探工程有限公司 | A kind of reducing sand control screen |
| CN106121594B (en) * | 2016-08-29 | 2018-09-07 | 中国石油集团渤海钻探工程有限公司 | A kind of reducing sand control screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106121594B (en) | A kind of reducing sand control screen | |
| CN102031950B (en) | Hole-forming process method for comb gas extraction borehole in coal seam roof | |
| CN101067370B (en) | Adaptive filling expansion scree tube and expanding method thereof | |
| CN108286440B (en) | Novel composite anti-blocking single-shield TBM and construction method thereof | |
| CN201705219U (en) | Lateral drilling gravel pack completion string | |
| CN104895498B (en) | Coiled tubing band screen casing sidetracking is drilled well integrated apparatus and method | |
| CN112855087A (en) | Coal bed gas horizontal well system transformation method | |
| CN102493790A (en) | Method for increasing yield of coal bed gas | |
| CN109085014A (en) | A kind of ground high efficiency sampling apparatus and the method for sampling | |
| CN201635657U (en) | Downhole drilling tool for intelligent downhole multi-branch horizontal drilling completion system | |
| CN205955710U (en) | But reducing sand control screen | |
| CN201915916U (en) | Separate-layer fracturing sand control string | |
| CN109611061B (en) | Method for floating and running sieve tube | |
| CN104912535B (en) | Many cluster fracturing sliding bushs in a kind of section | |
| CN103089180A (en) | Casing sidetracked well completion method using expansion screen tube | |
| CN113530517A (en) | Combined segmented fracturing device, asynchronous two-way extraction system and method | |
| CN102162374A (en) | An anti-blocking device for a gob water drainage drill hole | |
| CN206158709U (en) | Support formula water injection string | |
| CN211549571U (en) | Down-the-hole hammer pipe-following drilling tool | |
| CN101956548B (en) | Coal bed methane multi-branch horizontal well system and modification method thereof | |
| CN101126311B (en) | Petroleum horizontal well expansion sand control screen device and expansion technique | |
| CN202348240U (en) | Gravel filling water control and sand prevention integrated device | |
| CN203430446U (en) | Horizontal well turbine sand cleaning device | |
| CN214576923U (en) | Coal bed gas horizontal well system | |
| CN202023504U (en) | Rotary eccentric casing drilling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170215 Effective date of abandoning: 20180907 |
|
| AV01 | Patent right actively abandoned |