CN205532587U - Fluid pressure type high pressure pressure measurement device - Google Patents
Fluid pressure type high pressure pressure measurement device Download PDFInfo
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- CN205532587U CN205532587U CN201620268876.9U CN201620268876U CN205532587U CN 205532587 U CN205532587 U CN 205532587U CN 201620268876 U CN201620268876 U CN 201620268876U CN 205532587 U CN205532587 U CN 205532587U
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Abstract
The utility model provides a fluid pressure type high pressure pressure measurement device, fluid pressure type high pressure pressure measurement device includes: the sealed inner tube in outer tube and bottom, outer pipe box is established outside the inner tube, just the inner tube or the intracavity is equipped with pressure sensor, driving element and adjusting yoke in proper order in the top of outer tube, the spacer sleeve is equipped with first primary cup and second primary cup on the outer tube, and first primary cup with the inner wall of second primary cup with have the clearance between the outer wall of inner tube, and the inner chamber of the feed liquor hole seted up on through the inner tube of clearance and inner tube is linked together, adjusting yoke is last to be equipped with sealed piston, pressure sensor still is used for monitoring tubing pressure and formation pressure, the utility model provides a fluid pressure type high pressure pressure measurement device can detect the mesh of self leakproofness when having realized the pressure measurement in the pit to solved among the prior art owing to can't lead to testing a technical problem who seals as a result the accuracy and reduce testing a leakproofness of sealing in -process test pressure meter.
Description
Technical field
This utility model relates to a kind of pressure tester, particularly to a kind of hydraulic high-pressure pressure tester.
Background technology
The Technology of Layered Water Injection is oil field when carrying out the exploitation of heterogeneous body multiple zone, in order to add persistent erection of the penis, low
Permeable formation also controls high permeability zone water filling, by injection allocation requirement, realizes hierarchical control input in water injection well
Technology, when seperated layer water injection, conventional equipment is separate layer water injection string, and separate layer water injection string is general
By packer, injection well downhole flow regulator, blocking or ball seat, screen casing and plug form, separate layer water injection string utilizes need not
The packer of model and injection well downhole flow regulator combine, and constitute the separate layer water injection string of difference in functionality, wherein carry out point
During layer water filling, particularly during high pressure water injection, water injection string can be made to wriggle, packer sealing effect is not
Problem that is good or that lost efficacy, therefore, during seperated layer water injection, needs tubing string packer is tested envelope
Technique, the purpose testing envelope is to check down-hole string packer situation.
At present, water injection string packer uses conventional manometric technique to carry out testing envelope, throws particular by steel wire
Drag for operation and put into electronic pressure gauge, judge that water injection string insulates according to the force value that electronic pressure gauge measures
The sealing of device, for multiple-string packer, needs every one-level packer is carried out pulling operation, and tests envelope
Data need to play back at ground secondary, quickly test envelope in order to accelerate multiple-string packer in prior art, by
Gradually use wireline operation mode to replace wire Launching and Bailing operating type, accelerated by wireline operation mode and test envelope
Efficiency.
But, when prior art using electronic pressure gauge test envelope, even if to electron pressure before testing envelope
The sealing of meter detects, but owing to underground work environment is the most severe so that during testing envelope
The test electronic pressure gauge sealing in down-hole cannot be predicted the most intact, i.e. test electron pressure during envelope
It is unforeseen that meter itself seals when going wrong, if the sealing of electronic pressure gauge own goes wrong
Will cause testing seals unsuccessfully, gets the wrong sow by the ear, and so makes seperated layer water injection effect be greatly lowered, and makees
Industry is relatively costly, and the well big simultaneously for interlayer pressure difference forces down owing to electronic pressure gauge is resistance to, it is impossible to adapt to
Big pressure reduction tests envelope and pressure measurement requirement.
Utility model content
This utility model provides a kind of hydraulic high-pressure pressure tester, solves water injection string in prior art
Cannot know during testing seal about packer that electronic pressure gauge sealing during envelope is tested in down-hole is the completeest
Technical problem.
This utility model provides a kind of hydraulic high-pressure pressure measurement, including:
Outer tube and the inner tube of bottom end seal, described outer tube sleeve is located at outside said inner tube, and said inner tube or
In the top of described outer tube, intracavity is sequentially provided with pressure transducer, drives element and adjusting yoke, described in drive
Dynamic element is used for driving described adjusting yoke to move；
On described outer tube, spacer sleeve is provided with the first sealing cup and the second sealing cup, and described first seals
There is gap between inwall and the outer wall of said inner tube of leather cup and described second sealing cup, and described between
Gap is by the inlet opening offered in said inner tube and the intracavity inter-connection of said inner tube；
Described adjusting yoke is provided with sealing piston, and described sealing piston is for the band at described adjusting yoke
Under Dong, in said inner tube, intracavity slides and blocks intracavity inter-connection with said inner tube in sliding process
Feed pathway is to compress the liquid in said inner tube inner chamber so that described pressure transducer is according to the institute got
State the bag pressure in inner tube to judge the sealing of described hydraulic high-pressure pressure tester；
Described pressure transducer is additionally operable to monitor tubing pressure and strata pressure.
In embodiment of the present utility model, optionally, described pressure transducer include the first piezometer,
Second piezometer and the 3rd piezometer, wherein, described first piezometer is used for detecting formation pressure, described
Second piezometer is used for detecting tubing pressure, and described 3rd piezometer is for detecting the bag pressure in said inner tube
Size.
In embodiment of the present utility model, optionally, described first sealing cup and described second seals
Offering the first stress test passage on outer tube between leather cup, described first piezometer passes through described first
Stress test Air conduct measurement value formation pressure.
In embodiment of the present utility model, optionally, described outer tube offers and described feed pathway
The the second stress test passage being connected, described second piezometer is examined by described second stress test passage
Survey tubing pressure value.
In embodiment of the present utility model, optionally, described outer tube includes the first outer tube and the second outer tube,
Wherein, described second outer tube sleeve is located at outside said inner tube, and the bottom of described first outer tube is set in described
On the top periphery of inner tube, and the intracavity inter-connection of the inner chamber of described second outer tube and said inner tube；
Described pressure transducer, described driving element and described adjusting yoke are arranged on described first outer tube
In inner chamber；
Described first sealing cup and described second sealing cup spacer sleeve are located on described second outer tube, and
Described first sealing cup is arranged near the top of described second outer tube.
In embodiment of the present utility model, optionally, the bottom of said inner tube is provided with detent mechanism, institute
State detent mechanism for described hydraulic high-pressure pressure tester position in oil pipe is positioned.
In embodiment of the present utility model, optionally, described detent mechanism is locating detent, and described tune
The bottom of joint pull bar is against on described locating detent through the seal box in the inner chamber of said inner tube bottom, described fixed
Position pawl opens location under the impetus of described adjusting yoke.
In embodiment of the present utility model, optionally, described driving element is motor.
In embodiment of the present utility model, optionally, described first sealing cup and described second seals
Leather cup is to use the leather cup made of nitrile rubber, and described first sealing cup and described second sealing cup
It is connected with described outer tube by vulcanization.
In embodiment of the present utility model, optionally, said inner tube and described outer tube are threadedly
It is connected.
This utility model provides a kind of hydraulic high-pressure pressure tester, by including outer tube and bottom end seal
Inner tube, described outer tube sleeve is located at outside said inner tube, and intracavity in the top of said inner tube or described outer tube
Being sequentially provided with pressure transducer, drive element and adjusting yoke, described driving element is used for driving described tune
Joint pull bar moves；On described outer tube, spacer sleeve is provided with the first sealing cup and the second sealing cup, and described
Gap is there is between inwall and the outer wall of said inner tube of the first sealing cup and described second sealing cup,
And described gap is by the intracavity inter-connection of the inlet opening offered in said inner tube with said inner tube, described tune
Joint pull bar is provided with sealing piston, so seals piston sliding in interior tube cavity under driving element to go to drive
Dynamic, sliding process is closed feed pathway and compresses the liquid in interior tube cavity and gap, if in cavity
Bag pressure constantly rises along with the slide downward sealing piston, and reaches the first sealing cup and the second sealing skin
Bowl set pressure after be in hold mode, then can judge that the sealing of this pressure tester is intact,
The most just by pressure transducer pressure measurement and packer can be tested envelope, therefore, this utility model carries
The hydraulic high-pressure pressure tester of confession achieves the mesh tested self seal during testing envelope
, thus solve in prior art and cause owing to manometric sealing cannot be tested during testing envelope
Test the technical problem that sealed knot fruit accuracy reduces.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is embodiments more of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment one of this utility model hydraulic high-pressure pressure tester；
Fig. 2 is the structural representation of the embodiment two of this utility model hydraulic high-pressure pressure tester.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with
Accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear,
It is fully described by, it is clear that described embodiment is a part of embodiment of this utility model rather than complete
The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not making
The every other embodiment obtained under creative work premise, broadly falls into the scope of this utility model protection.
Embodiment one
Fig. 1 is the structural representation of the embodiment one of this utility model hydraulic high-pressure pressure tester, wherein,
The hydraulic high-pressure pressure tester that the present embodiment provides may be used for entering the packer in separate layer water injection string
Row tests envelope, and realizes the detection to self seal packer is tested Feng Shineng, the most all right
Tubing pressure and strata pressure are monitored in real time.
Wherein, in the present embodiment, as it is shown in figure 1, hydraulic high-pressure pressure tester includes: outer tube 200
With the inner tube 100 of bottom end seal, outer tube 200 is set in outside inner tube 100, wherein, and outer tube 200
Length can be identical with the length of inner tube 100, or the length of outer tube 200 is more than the length of inner tube 100,
As shown in fig. 1, the length of outer tube 200 is more than the length of inner tube 100, and inner tube 100 is positioned at outer tube 200
Inner chamber in, in the present embodiment, in the top of inner tube 100 or outer tube 200 intracavity be sequentially provided with pressure pass
Sensor 1, driving element 2 and adjusting yoke 3, concrete, when the length of outer tube 200 is not more than inner tube
100 length time, then pressure transducer 1, drive element 2 and adjusting yoke 3 to be arranged on inner tube 100
In the inner chamber of top, when the length of outer tube 200 is more than the length of inner tube 100, owing to inner tube 100 is positioned at
In the inner chamber of outer tube 200, for the ease of installing, the top inner chamber of outer tube 200 is installed pressure sensing
Device 1, driving element 2 and adjusting yoke 3 (as shown in Figure 1), wherein, pressure transducer 1 is used for examining
Survey tubing pressure, strata pressure and bag pressure, wherein, permissible according to the bag pressure that pressure transducer 1 detects
Judge that the sealing of this hydraulic high-pressure pressure tester self is the most intact, by the tubing pressure detected
Packer can be tested envelope, particular by fluid pressure type when pressure transducer 1 uses with strata pressure
The pressure guide hole (not shown) arranged on high pressure pressure tester gets each force value.
In the present embodiment, drive element 2 to be used for driving adjusting yoke 3 to move, wherein, drive unit
Part 2 is specifically as follows motor, and motor drives adjusting yoke 3 to move by through-drive or screw-driven,
In the present embodiment, adjusting yoke 3 is provided with sealing piston 5, wherein, seals piston 5 and inner tube 100
Inwall between be seal, and seal piston 5 can be in inner tube 100 under the drive of adjusting yoke 3
Inner chamber in slide, sealing piston 5 can be to the sky in inner tube 100 inner chamber when sliding in inner tube 100
Gas or liquid are compressed, if the sealing of inner tube 100 inner chamber is intact, then live along with sealing
When filling in the slip of 5, the pressure in inner tube 100 inner chamber can constantly increase, and increases to a certain degree can become
In constant.
It is in the present embodiment, when hydraulic high-pressure pressure tester self seal is tested, concrete,
As it is shown in figure 1, spacer sleeve is provided with the first sealing cup 7 and the second sealing cup 10 on outer tube 200,
Wherein, the gap length between the first sealing cup 7 and the second sealing cup 10 is with specific reference to packer
Seal section is set, and the inwall of the first sealing cup 7 and the second sealing cup 10 and inner tube 100
There is gap B between outer wall, the i.e. first sealing cup 7 and the second sealing cup 10 are set in outer tube 200
Time upper, it was opening at the outer tube 200 of this first sealing cup 7 and the second sealing cup 10 correspondence, so
Outer tube part is not had between first sealing cup 7 and the inwall of the second sealing cup 10 and the outer wall of inner tube 100
Point, can exist between the first sealing cup 7 and the inwall of the second sealing cup 10 and the outer wall of inner tube 100
Gap B, wherein, this gap B is by the inlet opening 9 offered in inner tube 100 and the inner chamber of inner tube 100
Being connected, so when liquid enters into the inner chamber of inner tube 100 from feed pathway 6, liquid can pass through
Inlet opening 9 enters in the B of gap, when so sealing piston 5 slides in inner tube 100 inner chamber, seals
Feed pathway 6 is closed by piston 5, seals piston 5 and starts liquid in compression chamber, the bag pressure in cavity
Constantly rising, the first sealing cup 7 and the second sealing cup 10 are expanded under bag pressure and are set, bag pressure along with
The compression downwards sealing piston 5 constantly rises, and is in hold mode after reaching to set pressure, wherein,
During sealing piston 5 slide downward, if bag pressure constantly rises, after rising to set pressure, tend to constant
Time, then can judge that the sealing of this pressure tester is intact, the most then this pressure tester self is close
Envelope property goes wrong.
In the present embodiment, it should be noted that the first sealing cup 7 and the second sealing cup 10 are simply used
In making a distinction leather cup, being not used to limit leather cup, the such as first sealing cup 7 is on outer tube 200
Position may be located on the second sealing cup 10, or the first sealing cup 7 is on outer tube 200
Position is positioned under the second sealing cup 10.Meanwhile, in the present embodiment, seal piston 5 in inner tube 100
Interior intracavity slides into when blocking feed pathway 6, after sealing piston 5 continues slide downward, and feed pathway 6
It is constantly in closed mode, when i.e. sealing the liquid in piston 5 compression chamber, seals piston 5 and will always
Feed pathway 6 is blocked, and liquid cannot flow into the inner chamber of inner tube 100 from feed pathway 6.The present embodiment
In, after the first sealing cup 7 and the second sealing cup 10 set, by pressure transducer 1 detection ground
Stressor layer, tubing pressure and bag pressure size, concrete, tubing pressure can be carried out at feed pathway 6
Measuring, strata pressure specifically can outer tube between the first sealing cup 7 and the second sealing cup 10
Being measured at 200, bag pressure can be measured at inlet opening 9, first according to the force value detected
First the sealing of this pressure tester self is verified, if the sealing of this pressure tester is intact,
Then start packer is tested envelope.
The hydraulic high-pressure pressure tester that the present embodiment provides, time specifically used, work process is as follows:
First, by cable by this hydraulic high-pressure pressure tester down to the above 2-3m of design attitude, continue
Enter to make seal section (outer tube 200 between the first sealing cup 7 and the second sealing cup 10) to sit under Huan Man
Enter injection well downhole flow regulator central passage sealing station；
Then, owing to this pressure tester feed pathway 6 during going into the well is in opening, therefore,
During going into the well, the intracavity of inner tube 100 and gap B are full of by wellbore fluid, when setting, by soft
Part controls downhole electrical motor (driving element 2) and just suppresses, and motor is by driving adjusting yoke 3 band movable sealing
Piston 5 slide downward, closes feed pathway 6, seals piston 5 and starts liquid in compression chamber, and first
Sealing cup 7 and the second sealing cup 10 are expanded under bag pressure and are set, and bag pressure is along with sealing piston 5 times
Row constantly rises, and is in hold mode after reaching to set pressure；
Then, carry out pressure measurement by pressure transducer 1, and carry out testing envelope according to the force value detected,
After i.e. first sealing cup 7 and the second sealing cup 10 set, proceed by strata pressure, oil pressure and capsule
Pressure detects；
Finally, unseal and change layer test, i.e. control downhole electrical motor counteragent, driven by motor by software
Seal piston 5 upward sliding, the first sealing cup 7 and the second sealing cup 10 to shrink under bag pressure reduces
Deblocking, when bag pressure recovers to zero after the first sealing cup 7 and the second sealing cup 10 recover completely, place
In negative shrink fitting state, after pressure tester carries 2-3 rice, driven by motor adjusting yoke 3 continues upper shifting, logical
Cross to carry on cable or transfer and carry out testing envelope to other test layer position.
In the present embodiment, the test jobs of multistage multistage dispensing well can be realized by repeating above step,
Pressure tester is once gone into the well and can be completed test and the testing seal about packer of all intervals, and efficiency is high, it is to avoid
Prior art is often tested one-level and piezometer pulling to ground need to be carried out secondary playback, and in the present embodiment,
When multistage multistage is tested by pressure tester, pressure tester only need to move between every section, but and is not required to
Again pulling is to ground, thus improves the efficiency testing envelope, and simple and reliable process, kit letter
Single, efficiency and better results.
The hydraulic high-pressure pressure tester that the present embodiment provides, by including outer tube 200 and bottom end seal
Inner tube 100, described outer tube 200 is set in outside said inner tube 100, and said inner tube 100 or described
In the top of outer tube 200, intracavity is sequentially provided with pressure transducer 1, drives element 2 and adjusting yoke 3, institute
State driving element 2 for driving described adjusting yoke 3 to move；On described outer tube 200, spacer sleeve is provided with
One sealing cup 7 and the second sealing cup 10, and described first sealing cup 7 and described second seal skin
There is gap B between inwall and the outer wall of said inner tube 100 of bowl 10, and described gap B is by described
The inlet opening 9 offered in inner tube 100 and the intracavity inter-connection of said inner tube 100, described adjusting yoke 3
It is provided with sealing piston 5, so seals piston 5 under driving element 2 to go to drive at inner tube 100 inner chamber
Middle slip, closes feed pathway 6 and compresses the liquid in inner tube 100 inner chamber and gap B in sliding process,
If the bag pressure in cavity constantly rises along with the slide downward sealing piston 5, and reaches the first sealing cup
7 and second sealing cup 10 set pressure after be in hold mode, then can judge this pressure tester
Sealing is intact, the most just by pressure transducer 1 pressure measurement and packer can be tested envelope,
Therefore, the hydraulic high-pressure pressure tester that this utility model provides achieves during testing envelope close to self
Envelope property carries out the purpose tested, thus solves in prior art owing to cannot test pressure during testing envelope
The sealing of power meter causes testing the technical problem that sealed knot fruit accuracy reduces.
Further, on the basis of above-described embodiment, in the present embodiment, pressure transducer 1 includes
One piezometer, the second piezometer and the 3rd piezometer (not shown), be i.e. integrated with in pressure transducer 1
Three piezometers, wherein, the first piezometer is used for detecting formation pressure, and the second piezometer is used for detecting oil
Pipe pressure, the 3rd piezometer is for detecting the bag pressure size in inner tube 100, wherein, according to the 3rd pressure
The sealing of pressure tester can be judged by the bag pressure size that meter monitors, according to the first piezometer inspection
Packer is tested envelope by the tubing pressure that the value formation pressure measured and the second piezometer detect,
In test process, tubing pressure, strata pressure and bag pressure can be monitored by three piezometers in real time,
So ground can recognize the situation of down-hole in real time by these three pressure parameters.
When strata pressure is monitored by the first piezometer, concrete, the first sealing cup 7 and second is close
The first stress test passage 8 is offered, when the first sealing cup 7 on outer tube 200 between strip of paper used for sealing bowl 10
When setting with the second sealing cup 10, the first piezometer is by the first stress test passage 8 detection ground lamination
Force value, the i.e. first stress test passage 8 is connected by pressure guide hole between the first piezometer, passes through pilot
Hole obtains the value formation pressure at the first stress test passage 8, it should be noted that the first stress test
Separated by sealing ring A between passage 8 and gap B, the i.e. first stress test passage 8 and gap B it
Between be disconnected.
Wherein, when tubing pressure is monitored by the second piezometer, specifically, offer on outer tube 200
There are the second stress test passage 4 being connected with feed pathway 6, wherein, the second stress test passage 4
Can not connect with gap B, between the second stress test passage 4 and gap B, be provided with sealing ring A, the
Two piezometers detect tubing pressure value, the i.e. second stress test passage 4 by the second stress test passage 4
Connect with the second piezometer, when the first sealing cup 7 and the second sealing cup 10 set, by second
Piezometer detects tubing pressure.
Further, on the basis of above-described embodiment, for the ease of assembling, outer tube 200 includes first
Outer tube 201 and the second outer tube 202, wherein, the second outer tube 202 is set in outside inner tube 100, and first
The bottom of outer tube 201 is set on the top periphery of inner tube 100, and the bottom of the i.e. first outer tube 201 is with interior
It is connected between the top of pipe 100, and the intracavity inter-connection of the inner chamber of the second outer tube 202 and inner tube 100,
In the present embodiment, pressure transducer 1, driving element 2 and adjusting yoke 3 are arranged on the first outer tube 201
Inner chamber in, the bottom of adjusting yoke 3 is fixedly installed sealing piston 5, the first sealing cup 7 and the
Two sealing cup 10 spacer sleeves are located on the second outer tube 202, and the first sealing cup 7 is near the second outer tube
The top of 202 is arranged, and the i.e. first sealing cup 7 is arranged on the second sealing cup 10.
In the present embodiment, in order to ensure the sealing of pressure tester, the inwall of the second outer tube 202 and inner tube
It is provided with several sealing rings A between the outer wall of 100, makes to seal the descending pressure of piston 5 by sealing ring A
During contracting, being confined space between inner chamber and the gap B of inner tube 100, inlet opening 9 is in inner tube 100
As long as the inner chamber that position can guarantee that inner tube 100 connects with gap B, in the present embodiment, inlet opening 9
The quantity offered is not any limitation as.
Further, on the basis of above-described embodiment, the first sealing cup 7 and the second sealing cup 10
The leather cup made for employing nitrile rubber, and the first sealing cup 7 and the second sealing cup 10 are by sulfuration
Mode is connected with outer tube 200, and in the present embodiment, the first sealing cup 7 and the second sealing cup 10 are being sat
The requirement of unidirectional maximal pressure difference 25Mpa, i.e. this pressure tester pressure-bearing can be met higher under the conditions of envelope, permissible
Meet big pressure reduction test envelope and pressure measurement requirement, thus avoid electronic pressure gauge in prior art resistance to force down ask
Topic.
Further, when inner tube 100 is connected with the first outer tube 201 and the second outer tube 202, the most permissible
Threadedly, snap fit or welding manner are connected.
Embodiment two
Fig. 2 is the structural representation of the embodiment two of this utility model hydraulic high-pressure pressure tester, upper
On the basis of stating embodiment, in the present embodiment, the bottom of inner tube 100 is provided with detent mechanism 12, localization machine
Structure 12 is for positioning, i.e. at this pressure tester hydraulic high-pressure pressure tester position in oil pipe
Go into the well when testing, when arriving design attitude, open detent mechanism 12, pressure tester is positioned at well
The most specific position, in the present embodiment, as in figure 2 it is shown, detent mechanism 12 concrete for locating detent, fixed
Position pawl is driven by adjusting yoke 3, and concrete, in the present embodiment, adjusting yoke 3 is from second
The inner chamber of pipe 202 extends to the inner chamber of inner tube 100 and stretches out from the bottom of inner tube 100, wherein, and inner tube
Being provided with seal box 11 in the bottom inner chamber of 100, for sealing the inner chamber of inner tube 100, regulation is drawn
The bottom of bar 3 is against on locating detent through seal box 11, when needs position, and driven by motor adjusting yoke
3 move down, and locating detent opens under the impetus of adjusting yoke 3, transfer and are seated in test device
Portion positions, and after test completes, above carries pressure tester, and driven by motor adjusting yoke 3 moves, fixed
Position pawl return.In the present embodiment, during it should be noted that driven by motor adjusting yoke 3 moves down, seal
Piston 5 can move along with adjusting yoke 3, but when adjusting yoke 3 promotes locating detent to position, seal and live
Feed pathway 6 will not be blocked by plug 5, and i.e. in position fixing process, liquid can enter from feed pathway 6
In the inner chamber of inner tube 100.And when sealing the liquid that piston 5 continues in slide downward compression chamber,
The bottom of adjusting yoke 3 is supported always and is moved down on locating detent.
Concrete, the work process of the hydraulic high-pressure pressure tester that the present embodiment provides particularly as follows:
First, by cable by this hydraulic high-pressure pressure tester down to the above 2-3m of design attitude, motor
Driving adjusting yoke to promote locating detent, make locating detent open, (first is close to enter to make seal section under continuing slowly
The part of the second outer tube 202 between strip of paper used for sealing bowl 7 and the second sealing cup 10) be seated in injection well downhole flow regulator center lead to
Road sealing station；
Then, during going into the well, feed pathway 6 is in opening, the intracavity of inner tube 100 and gap B
Middle it is full of by wellbore fluid, when setting, controls downhole electrical motor (driving element 2) by software and just suppress,
Motor is by driving adjusting yoke 3 band movable sealing piston 5 slide downward, and sealing piston 5 is blocked feed liquor and led to
Road 6, and seal piston 5 start liquid in compression chamber, the first sealing cup 7 and the second sealing cup
10 expand under bag pressure and set, and bag pressure, along with sealing the descending continuous rising of piston 5, reaches to set pressure
After be in hold mode；
Then, carry out pressure measurement by pressure transducer 1, and carry out testing envelope according to the force value detected,
After i.e. first sealing cup 7 and the second sealing cup 10 set, proceed by strata pressure, oil pressure and capsule
Pressure detects；
Finally, unseal and change layer test, i.e. control downhole electrical motor counteragent, driven by motor by software
Seal piston 5 upward sliding, the first sealing cup 7 and the second sealing cup 10 to shrink under bag pressure reduces
Deblocking, when bag pressure recovers to zero after the first sealing cup 7 and the second sealing cup 10 recover completely, place
In negative shrink fitting state, after pressure tester carries 2-3 rice, driven by motor adjusting yoke 3 continues upper shifting, fixed
Position pawl resets, and carries out testing envelope to other test layer position by carrying on cable or transferring.
In the present embodiment, the test jobs of multistage multistage dispensing well can be realized by repeating above step,
Pressure tester is once gone into the well and can be completed test and the testing seal about packer of all intervals, improves and tests envelope efficiency.
The hydraulic high-pressure pressure tester that the present embodiment provides, achieves this pressure measurement by arranging detent mechanism
Device being accurately positioned in device under test.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, and
Non-to its restriction；Although this utility model being described in detail with reference to foregoing embodiments, ability
The those of ordinary skill in territory is it is understood that it still can be to the technical scheme described in foregoing embodiments
Modify, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the model of this utility model each embodiment technical scheme
Enclose.
Claims (10)
1. a hydraulic high-pressure pressure tester, it is characterised in that including:
Outer tube and the inner tube of bottom end seal, described outer tube sleeve is located at outside said inner tube, and said inner tube or
In the top of described outer tube, intracavity is sequentially provided with pressure transducer, drives element and adjusting yoke, described in drive
Dynamic element is used for driving described adjusting yoke to move；
On described outer tube, spacer sleeve is provided with the first sealing cup and the second sealing cup, and described first seals
There is gap between inwall and the outer wall of said inner tube of leather cup and described second sealing cup, and described between
Gap is by the inlet opening offered in said inner tube and the intracavity inter-connection of said inner tube；
Described adjusting yoke is provided with sealing piston, and described sealing piston is for the band at described adjusting yoke
Under Dong, in said inner tube, intracavity slides and blocks intracavity inter-connection with said inner tube in sliding process
Feed pathway is to compress the liquid in said inner tube inner chamber so that described pressure transducer is according to the institute got
State the bag pressure in inner tube to judge the sealing of described hydraulic high-pressure pressure tester；
Described pressure transducer is additionally operable to monitor tubing pressure and strata pressure.
Hydraulic high-pressure pressure tester the most according to claim 1, it is characterised in that described pressure
Sensor includes the first piezometer, the second piezometer and the 3rd piezometer, wherein, described first piezometer
For detecting formation pressure, described second piezometer is used for detecting tubing pressure, and described 3rd piezometer is used
Bag pressure size in detection said inner tube.
Hydraulic high-pressure pressure tester the most according to claim 2, it is characterised in that described first
The first stress test passage is offered on outer tube between sealing cup and described second sealing cup, described
First piezometer passes through described first stress test Air conduct measurement value formation pressure.
Hydraulic high-pressure pressure tester the most according to claim 2, it is characterised in that described outer tube
On offer the second stress test passage being connected with described feed pathway, described second piezometer passes through
Described second stress test Air conduct measurement tubing pressure value.
5. according to the arbitrary described hydraulic high-pressure pressure tester of claim 1-4, it is characterised in that institute
Stating outer tube and include the first outer tube and the second outer tube, wherein, described second outer tube sleeve is located at outside said inner tube,
The bottom of described first outer tube is set on the top periphery of said inner tube, and the inner chamber of described second outer tube
Intracavity inter-connection with said inner tube；
Described pressure transducer, described driving element and described adjusting yoke are arranged on described first outer tube
In inner chamber；
Described first sealing cup and described second sealing cup spacer sleeve are located on described second outer tube, and
Described first sealing cup is arranged near the top of described second outer tube.
6. according to the arbitrary described hydraulic high-pressure pressure tester of claim 1-4, it is characterised in that institute
The bottom stating inner tube is provided with detent mechanism, and described detent mechanism is for described hydraulic high-pressure pressure tester
Position in oil pipe positions.
Hydraulic high-pressure pressure tester the most according to claim 6, it is characterised in that described location
Mechanism is locating detent, and the bottom of described adjusting yoke is supported through the seal box in the inner chamber of said inner tube bottom
On described locating detent, location opened under the impetus of described adjusting yoke by described locating detent.
8. according to the arbitrary described hydraulic high-pressure pressure tester of claim 1-4, it is characterised in that institute
Stating driving element is motor.
9. according to the arbitrary described hydraulic high-pressure pressure tester of claim 1-4, it is characterised in that institute
State the first sealing cup and described second sealing cup is the leather cup using nitrile rubber to make, and described the
One sealing cup is connected with described outer tube by vulcanization with described second sealing cup.
10. according to the arbitrary described hydraulic high-pressure pressure tester of claim 1-4, it is characterised in that
Said inner tube is threadedly connected with described outer tube.
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