CN107587861A - One kind is with brill sand washing pressure testing aerial drainage integrated apparatus - Google Patents
One kind is with brill sand washing pressure testing aerial drainage integrated apparatus Download PDFInfo
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- CN107587861A CN107587861A CN201610529116.3A CN201610529116A CN107587861A CN 107587861 A CN107587861 A CN 107587861A CN 201610529116 A CN201610529116 A CN 201610529116A CN 107587861 A CN107587861 A CN 107587861A
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- sliding sleeve
- pressure testing
- plunger
- sand washing
- aerial drainage
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Abstract
The invention discloses one kind with brill sand washing pressure testing aerial drainage integrated apparatus, including cylinder, sliding sleeve plunger, the sliding sleeve plunger is enclosed in inner barrel, the cylinder opens up the oil leak hole of radial direction, the sliding sleeve plunger is temporarily fixed on cylinder by cutting pin, while sliding sleeve plunger during temporarily fixation temporarily blocks oil leak hole.The sliding sleeve plunger outer wall respectively opens up a road sealing groove up and down, mounting O-shaped sealing ring in seal groove, sliding sleeve plunger outer wall is formed with cylinder inboard wall and seals.The sliding sleeve plunger through forms plunger through hole, and sliding sleeve plunger upper and lower port inwall is designed to inner conical surface, ensures that steel ball can take advantage of a situation in place.The present invention realizes the integration of sand washing pressure testing three technique of aerial drainage, ensures different type tubing string, different hole deviations normally with brill work pressure test target.
Description
Technical field
It is specifically a kind of with brill sand washing pressure testing aerial drainage one the present invention relates to oil well repairing operation auxiliary type downhole tool
Body makeup is put.
Background technology
According to investigations before 2015, Oil Field mainly has 2 major classes using underground pressure testing class instrument：The first be straight well and
The mechanical ball valve that inclined shaft uses, the interior prepackage steel ball of ball valve, reacting cycle can only be used after going into the well situations such as chance pit shaft sand setting, fouling
Mode is handled, and does not possess the function of direct circulation；Second is that more than 35 ° high angle holes and horizontal well use fluid power ball valve,
Prepackage (post) living plug or spacing ball seat, are sealing states after going into the well, because liquid can not realize sand washing in top throttling and bore milling
Direct circulation operation, it is necessary under process pipe string to design attitude with cementing truck pressure testing it is qualified after be pressurized opening drain path again, realize
Pipe column oil drainage in circulation well cleanup and trip-out process.Limited by itself tool construction, both instruments do not possess when going into the well just to follow
Ring, the function of sand washing, sand washing, pressure testing, the process integration target of aerial drainage can not be completed.Two ways has been required for out process duct
Independent lower tubular column sand washing after post, then lower tubular column carry out pressure testing, tedious process, spend height, bit freezing risk big.Existing pressure test tool
The structural constraint embodiment of technique, can not complete the sand washing, pressure testing, aerial drainage integration of different hole deviations, instrument be present
Situation about not matching, need the research and development of new tool and supporting.
In oilfield development process, often specific aim takes lower filter, loses card envelope, separate layer acid treatment, brill milling, tests and the technique such as alter and arrange
Apply, to ensure that process safety is implemented, it is necessary to be verified in advance to the tubing string sealing under high pressure conditions.Investigation finds pipe at present
Post pressure test process has larger optimization space：First, the structural constraint of existing instrument process embodiment, the examination of conventional sand control well
Press technique up to three times comparatively laborious；Second, current pit shaft fouling well is conventional using major diameter instrument bands such as gauguste cutter, pipeline scrapers
There is hidden dangers in project in the mode that ball valve carries out pressure testing, larger bit freezing risk be present, once bit freezing is difficult processing, if unfreezing successfully needs
Increase wellbore treatments technique；Third, if integration can be realized by boring milling processes and pipe string pressure test technique, simplify technique stream
Journey, will be that a very big technique carries effect point；Fourth, influenceed by hole deviation, track, after caber being present in horizontal well and High angle well section
The bleeder situation of pounding not open, it is impossible to realize trip-out aerial drainage, contamination control difficulty is big in operation process.
By retrieval, while can sand washing, pressure testing, the instrument of aerial drainage, do not retrieve result.
The content of the invention
It is an object of the invention to provide one kind with sand washing pressure testing aerial drainage integrated apparatus is bored, sand washing pressure testing aerial drainage three is realized
The integration of individual technique, ensure different type tubing string, different hole deviations normally with brill work pressure test target.It is complicated to solve pit shaft
In the case of conventional pressure testing tubing string be hampered after the big process difficulties of bit freezing risk, reduce repeating and invalid process, cut down engineering accident
Risk, with the innovation optimization technological process of instrument, realize technique speed-raising synergy.
It is a kind of integrated with sand washing pressure testing aerial drainage is bored present invention employs following technical scheme in order to reach above-mentioned purpose
Device, including cylinder, sliding sleeve plunger, the sliding sleeve plunger are enclosed in inner barrel, and the cylinder opens up the oil leak hole of radial direction, institute
Sliding sleeve plunger when stating sliding sleeve plunger to be temporarily fixed on cylinder by cutting pin, while temporarily fixing temporarily blocks draining
Hole.
The sliding sleeve plunger outer wall respectively opens up a road sealing groove up and down, mounting O-shaped sealing ring in seal groove, makes sliding sleeve plunger
Outer wall is formed with cylinder inboard wall and sealed.
The sliding sleeve plunger through forms plunger through hole, and sliding sleeve plunger upper and lower port inwall is designed to inner cone
Face, ensure that steel ball can take advantage of a situation in place.
The cylinder upper and lower side connects top connection and lower contact respectively.
The top connection lower surface and lower contact upper surface all form axial limiting to sliding sleeve plunger.
The cutting pin is provided with 8.
Compared to prior art, the invention has the advantages that：
The downhole tool such as tripping in nib, gauguste cutter or scraper successively, top connected pipes short circuit, is taken steel ball using preceding
Go out, sand washing pressure testing aerial drainage integrated apparatus is connected with tripping in, top screw buckle is bored with oil pipe, until well head.Lower oil pipe (bores
Bar) instrument is delivered to projected depth after, be normally carried out sand washing, scraping or bore the measure operation such as milling.Because the borehole wall has sand or pit shaft
If bit freezing can be handled with well cleanout and reverse cleanout trial after fouling midway exception is hampered；Steel ball is put into after technological measure, waits to sink and treats that steel ball arrives
Up to inner sliding sleeve assembly position, suppressed with cementing truck to design pressure and carry out pressure testing；After voltage stabilizing is qualified, continues supercharging and cut pin,
Sliding sleeve plunger, which moves down, to be exposed discharge orifice and realizes aerial drainage；After play out tubing string, take sand washing pressure testing aerial drainage integrated apparatus and steel ball out of, it is complete
Into task.
Successfully realize that different type, different hole deviation tubing strings normally with sand washing pressure testing aerial drainage target is bored, solve pit shaft and answered
The big process difficulties of bit freezing risk after conventional pressure testing tubing string is hampered in the case of miscellaneous, cut down engineering accident risk, with the innovation of instrument
Optimization technological process, technique speed-raising synergy is realized, reduces operating cost input, shortening accounts for the well cycle.The instrument is in stake west oil
Field straight well, high-inclination directional well and horizontal well wide popularization and application, economic benefit and social benefit are notable, possess popularization of the same trade
Value.
The present invention is used in operation process because of various pressure testing tubing strings of complex situations such as pit shaft product sand, foulings and bores milling tubing string
When exception is hampered, process pipe string sand-flushing can be realized or bore milling operation, process pipe string pressure testing and trip-out pipe column oil drainage etc.
Process integration is integrated.
Brief description of the drawings
Fig. 1 is that the present invention is a kind of with the structural representation for boring sand washing pressure testing aerial drainage integrated apparatus.
In figure：Top connection 1, cylinder 2, cut pin 3, be sliding sleeve plunger 4, lower contact 5, discharge orifice 6, O-ring seal 7, O-shaped
Sealing ring 8.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings it is as follows, but accompanying drawing only provide reference with
Purposes of discussion, not it is used for being any limitation as the present invention.
It is a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, including cylinder 2, top connection 1, lower contact 5, interior cunning according to Fig. 1
Cover the composition such as assembly.Inner sliding sleeve assembly includes sliding sleeve plunger 4, cuts pin 3, O-ring seal 7, O-ring seal 8；Sliding sleeve plunger
Inner conical surface groove is reserved in 4 centrally disposed plunger through holes, upper end, and fixing pin blind hole is reserved in side, and outside sets 4 O-shaped sealings
Ring recess, upper end mounting O-shaped sealing ring 7, lower end O-ring seal 8.Cylinder 2 uses independent steel body structure, and multiple cuttings are left in side
Pin and fixing pin through hole, steel body top are machined with discharge orifice 6.
Inner sliding sleeve assembly and oil leak hole 6 are designed in same cylinder 2, length is only 0.45m, small volume and less weight, is easy to
In-site installation is dismantled.
Steel ball is taken out before going into the well, instrument under brill with, to after projected depth, can using anti-(just) endless form pass through sliding sleeve
The plunger through hole of plunger 4, coordinate well-flushing with cementing truck and replace into various medicaments, liquid, carry out sand washing, scraping or bore the techniques such as milling to apply
Work.
, can if the borehole wall has sand or pit shaft fouling midway is hampered bit freezing after process pipe string is gone into the well using rear-mounted stuff
To be handled using anti-(just) endless form by the plunger through hole of sliding sleeve plunger 4, engineering anti-sticking is realized.
Cylinder 2 uses independent steel body structure, and side leaves 8 and cuts pin and fixing pin through hole, according to design pressure
Demand, the enough cutting pins 3 of installation can be selected according to design pressure.
The sliding sleeve plunger 4 of the lower end O-ring seal 8 of upper end mounting O-shaped sealing ring 7 is put into cylinder 2, and with cut pin
3 fastenings, after process implementing can with pitching pressure testing, by design pressure testing it is qualified after, well head hydraulic booster shears cutting pin 3, sliding
Set plunger 4, which moves down 8~12cm and exposes discharge orifice 6, realizes in tubing string that leaked liquid arrives casing annulus, solution high angle hole, horizontal well
Bleeder is pounded not open after caber, can not realize the difficult problem of environmental protection of draining, realizes clean manufacturing in trip-out process.
Groove is reserved in the upper end of sliding sleeve plunger 4, is designed using chute type, realizes that High angle, net horizontal section steel ball can take advantage of a situation
In place, force placed in the middle, it is ensured that straight well, high angle hole, horizontal well can normally complete pressure testing operation.
With sand washing pressure testing aerial drainage integrated apparatus is bored with tripping in is bored, after realizing the techniques such as well-flushing, sand washing, pressure testing, aerial drainage, rise
Go out tool ejector top connection 1 and take out sliding sleeve plunger 4, check to change and cut pin 3, O-ring seal 7, O-ring seal 8, Ke Yichong
It is multiple to use, reduce operating cost input.
The object of the present invention is achieved like this：As shown in figure 1, by the lower end O-ring seal 8 of upper end mounting O-shaped sealing ring 7
Sliding sleeve plunger 4 be put into cylinder 2, and with cut pin 3 fasten, top connection 1 is threadedly coupled fastening with the top of cylinder 2, general
Lower contact 5 is connected fastening with the lower thread of cylinder 2.The process pipe strings such as sand washing, drifting, pipe cleaning, brill milling are visited by sand washing pressure testing aerial drainage
Integrated apparatus is connected on tubing string afterbody in advance, and top screw buckle is connected with oil pipe (drilling rod), until well head.Instrument, which is delivered to, to be set
After counting depth, as needed, anti-(just) endless form can be used to pass through the plunger through hole of sliding sleeve plunger 4, coordinate well-flushing with cementing truck
And replace into various medicaments, liquid, carry out sand washing, scraping or bore the construction technologies such as milling.If midway shifts to an earlier date because of pit shaft product sand or fouling
It is hampered, is circulated with cementing truck in well head and attempt punching spy to projected depth；If bit freezing can be tasted with well cleanout and reverse cleanout after midway exception is hampered
Examination is handled.Input steel ball after after the completion of technique, wait heavy 15-20min or pumped with cementing truck ground, treat steel ball seat in sliding sleeve plunger
4 upper recess positions, well head fluid power are suppressed to design pressure 15MPa or 20MPa；After if voltage stabilizing is qualified, continue to be pressurized to 23~
25MPa shears cutting pin 3, and sliding sleeve plunger 4, which moves down 8~12cm and exposes discharge orifice 6, realizes in tubing string leaked liquid to sleeve pipe
Annular space, realize clean manufacturing in trip-out process；After play out tubing string, take sand washing pressure testing aerial drainage integrated apparatus and steel ball out of.
With sand washing pressure testing aerial drainage integrated apparatus is bored, 87 are used as with drill tools in all kinds of oil reservoir oil-water wells within 2015
Well, used 25 times wherein visiting sand-flushing pipe column, scraping tubing string uses 47 times, bores milling tubing string and uses 15 times, technique one-time success rate
For 98.5% (have 1 time causes cutting pin to be sheared in advance because hydrodynamic face is too low), different type, different hole deviation tubing strings are successfully realized
Normally with sand washing pressure testing aerial drainage target is bored, it is big to solve bit freezing risk after conventional pressure testing tubing string is hampered under pit shaft complex situations
Process difficulties, cut down engineering accident risk, with the innovation optimization technological process of instrument, realize technique speed-raising synergy, reduce operation
Cost input, shortening account for the well cycle.The instrument is widely popularized in stake western oil field straight well, high-inclination directional well and horizontal well should
With economic benefit and social benefit are notable, possess promotional value of the same trade.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other are with this
The equivalence changes of the patent spirit of invention, it all should all belong to the scope of the claims of the present invention.
Claims (6)
- It is 1. a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, it is characterised in that including cylinder, sliding sleeve plunger, the sliding sleeve post Plug is enclosed in inner barrel, and the cylinder opens up the oil leak hole of radial direction, and the sliding sleeve plunger is temporarily fixed to by cutting pin On cylinder, while sliding sleeve plunger during temporarily fixation temporarily blocks oil leak hole.
- It is 2. according to claim 1 a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, it is characterised in that the sliding sleeve post Wall respectively opens up a road sealing groove up and down beyond the Great Wall, mounting O-shaped sealing ring in seal groove, sliding sleeve plunger outer wall is formed with cylinder inboard wall Sealing.
- It is 3. according to claim 1 a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, it is characterised in that the sliding sleeve post Fill in through and form plunger through hole, and sliding sleeve plunger upper and lower port inwall is designed to inner conical surface, ensures that steel ball can be suitable Gesture is in place.
- It is 4. according to claim 1 a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, it is characterised in that on the cylinder Lower end connects top connection and lower contact respectively.
- It is 5. according to claim 4 a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, it is characterised in that to be connect on described Head lower surface and lower contact upper surface all form axial limiting to sliding sleeve plunger.
- It is 6. according to claim 1 a kind of with brill sand washing pressure testing aerial drainage integrated apparatus, it is characterised in that the break pin Nail is provided with 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529116.3A CN107587861A (en) | 2016-07-06 | 2016-07-06 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529116.3A CN107587861A (en) | 2016-07-06 | 2016-07-06 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107587861A true CN107587861A (en) | 2018-01-16 |
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ID=61045317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610529116.3A Pending CN107587861A (en) | 2016-07-06 | 2016-07-06 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827984A (en) * | 2019-04-19 | 2020-10-27 | 中国石油天然气股份有限公司 | Screw pump well abnormity detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031578U (en) * | 2011-04-20 | 2011-11-09 | 徐光明 | Leakage-detecting device of sand flushing tubular column |
| US20130081806A1 (en) * | 2011-10-04 | 2013-04-04 | Halliburton Energy Services, Inc. | Debris resistant internal tubular testing system |
| CN202882807U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Large-inclination directional well downhole single-direction sand-washing flood-relief sand-stopping device |
| CN204098903U (en) * | 2014-09-18 | 2015-01-14 | 中国石油化工股份有限公司 | A kind of down-hole string pressure testing, pressure relief tool |
-
2016
- 2016-07-06 CN CN201610529116.3A patent/CN107587861A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031578U (en) * | 2011-04-20 | 2011-11-09 | 徐光明 | Leakage-detecting device of sand flushing tubular column |
| US20130081806A1 (en) * | 2011-10-04 | 2013-04-04 | Halliburton Energy Services, Inc. | Debris resistant internal tubular testing system |
| CN202882807U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Large-inclination directional well downhole single-direction sand-washing flood-relief sand-stopping device |
| CN204098903U (en) * | 2014-09-18 | 2015-01-14 | 中国石油化工股份有限公司 | A kind of down-hole string pressure testing, pressure relief tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827984A (en) * | 2019-04-19 | 2020-10-27 | 中国石油天然气股份有限公司 | Screw pump well abnormity detection device |
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Application publication date: 20180116 |
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