CN208950572U - The wriggling test device of down-hole string - Google Patents
The wriggling test device of down-hole string Download PDFInfo
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- CN208950572U CN208950572U CN201821746794.6U CN201821746794U CN208950572U CN 208950572 U CN208950572 U CN 208950572U CN 201821746794 U CN201821746794 U CN 201821746794U CN 208950572 U CN208950572 U CN 208950572U
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Abstract
Disclosed by the utility model is the wriggling test device of down-hole string, the production equipment and experimental facilities of basic research, optimization mechanical oil recovery for testing and collecting down-hole string wriggling displacement, carry out oil production equipment according to test and the data collected.The utility model is to connect an Oil-saving pipe as testing tube by upper box cupling in the lower end of downhole production tubing string, the testing friction part that friction scratch will be generated between testing tube is mounted in wriggling test device, wriggling test device is fixed between casing and testing tube, the testing friction part installed in wriggling test device is made tightly to act against the outer wall of testing tube；When flow string occurs to wriggle and testing tube is driven to wriggle together, testing friction part leaves scratch in the outer wall of testing tube.Wriggling test device is set there are two types of embodiment, and testing friction part is mounted in lower end cap or test ball is mounted in steel ball fixed ring and tightly abuts against together with testing tube.
Description
Technical field
The utility model relates to petroleum industry downhole production tubing string operating condition basic research test method and test devices, especially
It is the wriggling test device of down-hole string, for testing and collecting down-hole string wriggling displacement, according to test and the number collected
According to the basic research of progress oil production equipment, the production equipment and experimental facilities of optimization mechanical oil recovery.
Background technique
Underground roofbolt in the size of underground wriggling displacement only has theoretical calculation data in oil exploitation at present, up to now
Not over experiment to its correctness of the data verification of theoretical calculation.Since underground working is sufficiently complex, theoretical calculation data
With practical wriggling slope gap how, the true wriggling slope in underground is how, all needs to be verified by experimental data.
And only has Patent No. 200710054274.9, by Henan Oil Field to down-hole string wriggling displacement quantifier elimination at present
" a kind of down-hole string stress and displacement detector " that petroleum works Institute for Research and Technology, branch company develops.Its testing principle uses
Be " contact count idler wheel angular displacement sensor method ", its structure is complicated, test data is more comprehensive, but counts idler wheel in casing
Influence when inner wall rolls vulnerable to internal surface of sleeve pipe corrosive wear form and oil pipe wriggling azimuthal variation, and it is also only indirect survey
Data are measured, necessarily have certain error with truthful data.The theoretical study method and device of down-hole string wriggling displacement still need to change
Into.
Summary of the invention
It is that the wriggling of down-hole string is displaced research the purpose of the utility model is to provide the wriggling test device of down-hole string
Test method and test device are provided, reliable underground measured data is obtained by the utility model, is oil production equipment and experiment
The Optimal improvements of equipment provide true related data and data, serve production.
The technical solution of the utility model is:
The wriggling test device of down-hole string includes test anchor and testing friction part, and test anchor is able to use well
The anchor mechanism of lower packet, test anchor are equipped with anchoring central tube, locking outer tube, locking inner sleeve and anchoring slips, locking
For outer tube loaded on connecting outside anchoring central tube and with anchoring central tube, locking inner sleeve is locked in locking by the incorgruous lock tooth of inner wall
On outer tube；Anchoring slips is inlaid in slips cover for seat, and the two sides for being anchored slips are respectively provided with upper cone and lower cone, epicone physical efficiency
Along locking outer tube slide downward enough under the drive of locking inner sleeve, anchoring slips is tightly anchored on to the inner wall of casing；Test
Friction member is mounted in lower end cap, and the inner thread connection of lower end cap and lower cone tightly pushes up testing friction part with testing tube
It is close together.
The wriggling test device of down-hole string includes steel ball fixed ring and test supporting mechanism, and test supporting mechanism, which is equipped with, to rub
Cleaning block fixes sleeve, friction block and support spring, friction block is inlaid in friction block fixes sleeve, both ends by upper locking cap and under
Locking cap is fixed, and support spring is installed between friction block fixes sleeve and friction block；Test ball is mounted on steel ball fixed ring
In, be fixed on test supporting mechanism upper end or lower end.
Compared with prior art, the significant using effect of the utility model is: down-hole pipe wriggling data test belongs to machine
The basic scientific research of tool oil recovery aspect, the utility model can really be tested with immediate underground, be provided for scientific research
Most reliable data and data.Provided by the utility model is the measurement method and actual measurement device of down-hole string wriggling displacement,
Apparatus structure is simple, reliable for operation.After down-hole string proposes ground, wriggling displacement scratch can be directly measured, error is small, data
Intuitively, it is easy to that test is largely installed in underground, obtains reliable comprehensive test data of experiment.Pass through the down-hole string largely collected
Wriggling displacement, the data verifying existing wriggling slope theoretical formula and being gone out based on theoretical formula method, in order to derive well
The true wriggling slope calculation formula of lower tubular column.The utility model can accurately measure the size of the practical wriggling displacement of down-hole string,
And the relationship between wriggling slope and various different elements, it can be oil recovery optimization design and card envelope technological measure and card envelope tool
It improves and true data foundation is provided, while also can accumulate true comprehensive data information for the research of other oil production equipments.
Test device provided by the utility model is of simple structure and low cost, reliability and durability, can not only obtain intuitive, true
Real, displacement of accurately wriggling, and convenient for widely applying experiment test, convenient for obtaining many experiments test data, have aobvious
The research application effect and application value of work.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model test device embodiment one.
Fig. 2 is the structural schematic diagram of the embodiment two of testing friction part in the utility model test device embodiment one.
Fig. 3 is the structural schematic diagram of the utility model test device embodiment two.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing, not limits the protection scope of the utility model.It is as described below to be only
The preferred embodiment of the utility model, other use the equivalence changes of the utility model, should belong to the protection of the utility model
Range.
The utility model is applied in the wriggling test method of down-hole string, specifically: in the lower end of downhole production tubing string 2
An Oil-saving pipe is connected as testing tube 4 by upper box cupling 3, and the testing friction of friction scratch will be generated between testing tube 4
Part is mounted in wriggling test device, and wriggling test device is fixed between casing 1 and testing tube 4, makes wriggling test device
The testing friction part of middle installation tightly acts against the outer wall of testing tube 4；When flow string 2 occurs to wriggle and drives testing tube 4 one
When playing wriggling, testing friction part leaves scratch in the outer wall of testing tube 4, by the downhole production actual test of two to three months
Or when waiting next workover treatment, propose that flow string 2, measurement testing friction part leave the length of scratch on testing tube 4, obtain
To the wriggling slope of flow string 2.
There are two types of embodiments for wriggling test device in the utility model.
The embodiment one of wriggling test device
As depicted in figs. 1 and 2: the wriggling test device of down-hole string includes test anchor and testing friction part, test
Anchor is able to use the anchor mechanism of downhole packer, and test anchor is equipped with anchoring central tube 17, locking outer tube 16, locking
Inner sleeve 18 and anchoring slips 19, locking outer tube 16 is connect loaded on 17 outside of anchoring central tube and with anchoring central tube 17, in locking
Set 18 is locked on locking outer tube 16 by the incorgruous lock tooth of inner wall；Anchoring slips 19 is inlaid in slips cover for seat, is anchored slips
19 two sides are respectively provided with upper cone 20 and lower cone 21, and upper cone 20 can be outer along locking under the drive of locking inner sleeve 18
Anchoring slips 19 is tightly anchored on the inner wall of casing 1 by 16 slide downward of pipe；Testing friction part is mounted in lower end cap 22, under
Plug 22 is connect with the inner thread of lower cone 21, and testing friction part and testing tube 4 are tightly abutted against together.
The testing friction part is test ball 8 and test steel needle 23, and test ball 8 and test steel needle 23 are tested in wriggling
Three are at least installed in device, selection is stayed in scratch most deep on 4 outer wall of testing tube, measures its length, and the length of the scratch is
It is the practical wriggling slope of flow string 2.
There are two types of embodiments for testing friction part, are test ball 8 or test steel needle 23 respectively, here is using test ball
8 as testing friction part embodiment, referring to Fig. 1.
Steel ball mounting hole is equipped in the ontology of the lower end cap 22, test ball 8 is loaded in the steel ball mounting hole, tested steel
Ball seat 12 and test spring 11 are successively installed, lower cone 21 blocks test ball 8, ball seat 12 and test spring 11 behind ball 8
In steel ball mounting hole.
Steel ball mounting hole in the lower end cap 22 is non-isometrical hole, the eyelet on 22 inner wall of lower end cap less than test
The outer diameter of steel ball 8, ball seat 12 is less than the plate body of steel ball mounting hole exit orifice, the plate body contacted with test ball 8 is equipped with pit
It is matched with test ball 8, test spring 11 is mounted on behind ball seat 12, acts against between ball seat 12 and lower cone 21, will
A part of 8 sphere of test ball is ejected from steel ball mounting hole tightly to be abutted against together with testing tube 4；Lower end cap 22 and lower cone
Reinforcing pin is additionally provided between body 21.
Here is to use tested steel meter 23 as the embodiment two of testing friction part, referring to fig. 2.
It is equipped with steel needle mounting hole in the ontology of the lower end cap 22, loading tested steel needle 23 and test spring 11 in it, surveys
It tries steel needle 23 and is equipped with shank and needle stand；Steel needle mounting hole is non-isometrical hole, the eyelet on 22 inner wall of lower end cap less than test
The outer diameter of 23 needle stand of steel needle, shank is from the inner wall of lower end cap 22 across, the test bullet that is installed in needle stand and lower cone 21
Spring 11 tightly acts against on the outer wall of testing tube 4.
When Fig. 1 and wriggling test device shown in Fig. 2 are gone into the well, anchor G.I.H will be tested first and used by construction
The application hydraulic coupling of hydraulic cylinder by anchoring slips 19, upper cone 20, lower cone 21 and locks inner sleeve 18 for this test device anchor
After 1 inner wall of casing, construction hydraulic cylinder is proposed into ground.Subsequent 2 lower end of flow string and upper box cupling 3 and testing tube 4
Connection, testing tube 4 is lowered into the anchoring central tube 17 of this wriggling test device in casing 1.
It recovers the oil when producing as pumping for sucker rod can cause the wriggling up and down of pumping pipe string, flow string 2
It will drive pumping for the testing tube 4 of connection in its lower section, the survey equipped with test ball 8 or tested steel meter 23 when wriggling
Examination anchor is reliably anchored in casing 1, its position is relatively motionless.Since test ball 8 is pushed up by test spring 11 and ball seat 12
4 outer wall of testing tube is leaned against, and the shank for testing steel needle 23 acts against 4 outer wall of testing tube, testing tube 4 by test spring 11 and needle stand
Outer wall just leaves the scratch moved back and forth up and down by test ball 8 or test steel needle 23, transports by the production of two to three months
It is proposed when going or waiting next workover treatment, 4 outer wall circumference of testing tube leaves the road N and test ball 8 or test steel needle 23 is opposite
The axial scratch answered, this scratch are the true intuitive wriggling displacement diagram of 2 wriggling displacement of flow string, measure the road N scratch
Length, take wherein one most deep of scratch, measured length is exactly the really and accurately wriggling displacement of flow string 2.
What is be explained in detail below is the embodiment two of wriggling test device, referring to Fig. 3.
The wriggling test device of down-hole string includes steel ball fixed ring 9 and test supporting mechanism, and test supporting mechanism is equipped with
Friction block fixes sleeve 5, friction block 6 and support spring 7, friction block 6 is inlaid in friction block fixes sleeve 5, both ends are by upper solid
Determine cap 13 and lower locking cap 14 is fixed, support spring 7 is installed between friction block fixes sleeve 5 and friction block 6；Test ball 8
It is mounted in steel ball fixed ring 9, is fixed on the upper end or lower end of test supporting mechanism.
Steel ball mounting hole is equipped in the ontology of the steel ball fixed ring 9, test ball 8 is surveyed loaded in the steel ball mounting hole
Ball seat 12 and test spring 11 are successively installed behind examination steel ball 8, fixed ring pressure cap 15 is installed outside steel ball fixed ring 9, this is solid
Determine ring pressure cap 15 to be threadedly coupled with upper locking cap 13 or lower locking cap 14, block test ball 8, ball seat 12 and test spring 11
In steel ball mounting hole.
Steel ball mounting hole in the steel ball fixed ring 9 is that non-isometrical hole, the eyelet on 9 inner wall of steel ball fixed ring are small
In the outer diameter of test ball 8, ball seat 12 is less than the plate body of steel ball mounting hole exit orifice, sets on the plate body contacted with test ball 8
There is pit to match with test ball 8, test spring 11 is mounted on behind ball seat 12, acts against ball seat 12 and fixed ring pressure cap
Between 15, a part of 8 sphere of test ball is ejected from steel ball mounting hole and is tightly abutted against together with testing tube 4；It is fixed
The inner wall of ring pressure cap 15, steel ball fixed ring 9 and friction block fixes sleeve 5 is equal to or more than the outer wall of testing tube 4.
The elastic force of the support spring 7 is greater than 60KN.
When using equipped with this wriggling test device for testing supporting mechanism and test ball, test ball 8 is both test
Friction member is again the bearing tested between supporting mechanism and testing tube 4, since test ball 8 plays the role of bearing, this wriggling
The force of sliding friction of relative motion becomes force of rolling friction between test device and testing tube 4, and force of rolling friction is far smaller than this
Force of sliding friction between 1 inner wall of wriggling test device and casing, so when opposite between this wriggling test device and testing tube 4
It is motionless that position can be reliably remain stationary when movement, between this wriggling test device and casing 1.
Testing tube 4 in this wriggling test device embodiment can be in fixed ring pressure cap 15, friction block fixes sleeve 5 and steel ball
It is freely up and down moved in fixed ring 9, test ball 8 is located in steel ball fixed ring 9, tested spring 11 and ball seat 12 act against survey
4 outer wall of test tube, this test device are limited in the length range of testing tube 4 by upper box cupling 3 and lower box cupling 10 and move up and down, above connect
Hoop 3 is connected to 2 lower end of flow string, and test ball 8 can really reflect flow string 2 in the scratch that 4 outer wall of testing tube leaves
Wriggling slope.Using when this test device flow string 2 can be connected to together with upper box cupling 3, testing tube 4 and lower box cupling 10
Lower end G.I.H.
The embodiment described above is only exemplary embodiments, and the test anchor especially in the utility model is not only
It is limited to above-described embodiment, those skilled in the art can make modification under the spirit and enlightenment without departing from the utility model,
Scheme disclosed above is there may be many changes, combination and modifies, and all within the protection scope of the present utility model.Therefore,
Protection scope is not limited only to explanation above.
Claims (9)
1. the wriggling test device of down-hole string, characterized in that including test anchor and testing friction part, test anchor energy
The anchor mechanism of downhole packer is enough used, test anchor is equipped with anchoring central tube (17), locking outer tube (16), locking inner sleeve
(18) it connect loaded on anchoring central tube (17) outside and with anchoring slips (19), locking outer tube (16) with anchoring central tube (17),
Locking inner sleeve (18) is locked in locking outer tube (16) by the incorgruous lock tooth of inner wall；Anchoring slips (19) is inlaid in slips cover for seat
In, the two sides of anchoring slips (19) are respectively provided with upper cone (20) and lower cone (21), and upper cone (20) can be in locking inner sleeve
(18) along locking outer tube (16) slide downward under drive, anchoring slips (19) is tightly anchored on to the inner wall of casing (1)；It surveys
Examination friction member is mounted in lower end cap (22), and lower end cap (22) is connect with the inner thread of lower cone (21), by testing friction part
It is tightly abutted against together with testing tube (4).
2. the wriggling test device of down-hole string as described in claim 1, characterized in that the testing friction part is test ball
(8) and test steel needle (23), test ball (8) and test steel needle (23) at least install three in wriggling test device.
3. the wriggling test device of down-hole string as claimed in claim 2, characterized in that set in the ontology of the lower end cap (22)
Have a steel ball mounting hole, test ball (8) loaded in the steel ball mounting hole, test ball (8) successively install below ball seat (12) and
It tests spring (11), lower cone (21) blocks test ball (8), ball seat (12) and test spring (11) in steel ball mounting hole
It is interior.
4. the wriggling test device of down-hole string as claimed in claim 3, characterized in that the steel ball peace in the lower end cap (22)
Dress hole is that non-isometrical hole, the eyelet being located on lower end cap (22) inner wall are less than the outer diameter of test ball (8), and ball seat (12) is less than
The plate body of steel ball mounting hole exit orifice, the plate body contacted with test ball (8) are equipped with pit and match with test ball (8), survey
Examination spring (11) is mounted on behind ball seat (12), acts against between ball seat (12) and lower cone (21), by test ball (8) ball
A part of body is ejected from steel ball mounting hole tightly to be abutted against together with testing tube (4)；Lower end cap (22) and lower cone (21)
Between be additionally provided with reinforcing pin.
5. the wriggling test device of down-hole string as claimed in claim 4, characterized in that set in the ontology of the lower end cap (22)
There are steel needle mounting hole, loading tested steel needle (23) and test spring (11) in it, test steel needle (23) is equipped with shank and needle stand；Steel
Needle mounting hole is the outer diameter of non-isometrical hole, the eyelet being located on lower end cap (22) inner wall less than test steel needle (23) needle stand, shank
Survey is tightly acted against from the inner wall of lower end cap (22) across, the test spring (11) that is installed in needle stand and lower cone (21)
On the outer wall of test tube (4).
6. the wriggling test device of down-hole string, characterized in that including steel ball fixed ring (9) and test supporting mechanism, test branch
Support mechanism is equipped with friction block fixes sleeve (5), friction block (6) and support spring (7), friction block (6) and is inlaid in friction block and fixes
In sleeve (5), both ends it is fixed by upper locking cap (13) and lower locking cap (14), support spring (7) is installed on friction block fixing sleeve
Between cylinder (5) and friction block (6)；Test ball (8) is mounted in steel ball fixed ring (9), is fixed on the upper of test supporting mechanism
End or lower end.
7. the wriggling test device of down-hole string as claimed in claim 6, characterized in that the ontology of the steel ball fixed ring (9)
In be equipped with steel ball mounting hole, for test ball (8) loaded in the steel ball mounting hole, test ball (8) successively installs ball seat below
(12) and test spring (11) fixed ring pressure cap (15), are installed outside the steel ball fixed ring (9), the fixed ring pressure cap (15) with it is upper
Locking cap (13) or lower locking cap (14) are threadedly coupled, block test ball (8), ball seat (12) and test spring (11) in steel
In ball mounting hole.
8. the wriggling test device of down-hole string as claimed in claim 7, characterized in that the steel in the steel ball fixed ring (9)
Ball mounting hole is the outer diameter of non-isometrical hole, the eyelet being located on steel ball fixed ring (9) inner wall less than test ball (8), ball seat
(12) plate body for being less than steel ball mounting hole exit orifice, the plate body contacted with test ball (8) are equipped with pit and test ball (8)
It matches, test spring (11) is mounted on behind ball seat (12), acts against between ball seat (12) and fixed ring pressure cap (15), will
A part of test ball (8) sphere is ejected from steel ball mounting hole tightly to be abutted against together with testing tube (4)；Fixed ring pressure cap
(15), the inner wall of steel ball fixed ring (9) and friction block fixes sleeve (5) is equal to or more than the outer wall of testing tube (4).
9. the wriggling test device of down-hole string as claimed in claim 7, characterized in that the elastic force of the support spring (7) is big
In 60KN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821746794.6U CN208950572U (en) | 2018-10-26 | 2018-10-26 | The wriggling test device of down-hole string |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821746794.6U CN208950572U (en) | 2018-10-26 | 2018-10-26 | The wriggling test device of down-hole string |
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| CN208950572U true CN208950572U (en) | 2019-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098704A (en) * | 2018-10-26 | 2018-12-28 | 中国石油化工股份有限公司 | The wriggling test method and its wriggling test device of down-hole string |
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2018
- 2018-10-26 CN CN201821746794.6U patent/CN208950572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098704A (en) * | 2018-10-26 | 2018-12-28 | 中国石油化工股份有限公司 | The wriggling test method and its wriggling test device of down-hole string |
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