CN205013042U - From degradation high strength filling pipe - Google Patents
From degradation high strength filling pipe Download PDFInfo
- Publication number
- CN205013042U CN205013042U CN201520676920.5U CN201520676920U CN205013042U CN 205013042 U CN205013042 U CN 205013042U CN 201520676920 U CN201520676920 U CN 201520676920U CN 205013042 U CN205013042 U CN 205013042U
- Authority
- CN
- China
- Prior art keywords
- pipe
- center tube
- high strength
- slot center
- slotted base
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a from degradation high strength filling pipe, including slot center tube, polymer pipe, the tight cover of polymer pipe is outside at the slot center tube, at least three axial through's guiding gutter is evenly seted up to polymer outside of tubes wall. The guiding gutter forms the vertical muscle on the slot center tube outer wall between two liang. The both ends of slot center tube all are connected with the coupling. The coupling passes through the snap ring setting on the slot center tube. Slot center tube, polymer pipe, coupling all adopt the polylactic acid macromolecular material. The utility model discloses a fill the screen pipe from the degradation soluble, solved that the cover is broken, the cover is curved and complex construction well sand control work progress in the brill stopper difficulty that appears, play down the problem that the operation success rate is low that the sand control tubular column appears to the annular space that the screen pipe formed has increased fluid flow surface and has amassed, has reduced the friction loss of fluid flow, has improved the oil well and has produced the liquid measure.
Description
Technical field
The utility model relates to filling pipe; Specifically a kind of from degraded high strength filling pipe.
Background technology
The cover that shakes out of current crude oil extraction becomes oil well and need implement coated sand squeezing filling anti-sand into maintaining its normal production, generally after waiting oil layer coating sand to solidify, construct with bit drills plug, if cover becomes serious, when can not implement to bore plug, be all generally stay plug to produce, adopt the sand method at pressure diffusion backlash oil-yielding stratum position, ensure the unimpeded of oil reservoir position, reduce oil reservoir position resistance.
At present after serious casing deformation well coated sand sand control, the sand method adopting pressure diffusion backlash oil-yielding stratum position, ensures the unimpeded of oil reservoir position more, reducing oil reservoir position resistance, but this method, the sand clamp-oning stratum can be rushed out, cause bum hole, affect sand control success rate or period of validity.Existing coated sand sand control bores plug technique, because quality own after coating curing is more crisp, in the process of construction, artificial borehole wall can be caused to destroy, produces crack thus cause sand control to lose efficacy; The little bit drills plug construction of serious casing deformation well, drilling direction is uncontrollable, causes to bore and fills in not in place or damage sleeve pipe; After adopting coated sand sand control, because its intensity is high, bore plug difficulty, the brill plug time is long, can increase operation labor intensity and affect rate when oil well drives a well.
A kind of from the solvable filling screen casing of degraded by researching and developing, can realize exempting to bore the construction of plug sand control, guarantee that coated sand forms high-strength, continuous, complete sand block barrier at oil reservoir position, effectively improve the sand control extract effect of casing deformation well, complex structural well, improve sand control technique level.
Through retrieval, do not finding the prior art with the application's same structure in the art.
Utility model content
The purpose of this utility model is to provide a kind of from degraded high strength filling pipe, adopt from the solvable filling screen casing of degraded, solve cover to break, overlap the brill plug difficulty occurred in curved and complex structural well sand control work progress, remove the problem that job success ratio that sand control pipe occurs is low, and the annular space that screen casing is formed increases fluid area of passage, decrease the friction loss of fluid flowing, improve oilwell produced fluid amount.
In order to reach above-mentioned purpose, the utility model have employed following technical scheme, a kind of from degraded high strength filling pipe, comprises slotted base pipe, polymer tube, described polymer tube is tightly placed in slotted base pipe outside, and described polymer tube outer wall evenly offers the through guiding gutter of at least three axis.
Described guiding gutter forms the vertical muscle on slotted base pipe outer wall between any two.
The two ends of described slotted base pipe are all connected with box cupling.
Described box cupling is arranged in slotted base pipe by snap ring.
Described slotted base pipe, polymer tube, box cupling all adopt PLA macromolecular material.
The tube wall of described slotted base pipe, polymer tube all offers axial slot sieve aperture, slot sieve aperture is through diametrically.
Compared to prior art, the utility model has following beneficial effect:
1, coated sand can be realized exempt to bore plug construction;
When coated sand be applied to that cover is curved, cover is broken or other complex structural well time, effectively can not bore plug, generally all stay plug to produce, have impact on the Liquid output of oil well.After adopting solubility high strength filling screen casing, when filling is complete, need not plug be bored, screen casing can be stayed in well, or be dissolved by degraded system, substantially increase coated sand and be constructed into power.
2, the annular space fluid formed from screen casing can increase fluid area of passage greatly, improves oilwell produced fluid amount;
After coated sand sand control has been constructed, formation fluid, by after sand control barrier, enters the annular space that screen casing is formed, so just greatly can reduce the drag losses of fluid, improve the Liquid output of oil well.
3, again construct fairly simple, can directly by tubing string take out, carry out sand control again;
After this sand control lost efficacy, because screen casing has dissolved, as long as take out the first half tubing string can carry out again sand control construction, without the need to the job execution problem worrying that cover is curved, cover is broken or Holes of Complicated Wells body structure part produces because of there being sand control pipe to trip out, construct simple.
In a word, can realize exempting to bore the construction of plug sand control by the use of this device, guarantee that coated sand forms high-strength, continuous, complete sand block barrier at oil reservoir position, effective sand control extract effect improving casing deformation well, complex structural well, can oil well output be increased like this, reduce operating cost, reduce labour intensity, improve rate when oil well drives a well, greatly cost-saving.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation from degraded high strength filling pipe of the present utility model;
Fig. 2 is the cross-sectional view of Fig. 1.
In figure: 1, slotted base pipe; 2, polymer tube; 3, vertical muscle; 4, guiding gutter; 5, box cupling; 6, snap ring.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
According to Fig. 1-2, a kind of from degraded high strength filling pipe, comprise slotted base pipe 1, polymer tube 2, described polymer tube is tightly placed in slotted base pipe outside, and described polymer tube outer wall evenly offers the through guiding gutter 4 of at least three axis.Described guiding gutter forms the vertical muscle 3 on slotted base pipe outer wall between any two.The two ends of described slotted base pipe are all connected with box cupling 5.Described box cupling is arranged in slotted base pipe by snap ring 6.Described slotted base pipe, polymer tube, box cupling all adopt PLA macromolecular material.The tube wall of described slotted base pipe, polymer tube all offers axial slot sieve aperture, slot sieve aperture is through diametrically.
One is filtered out PLA macromolecule nonmetals, and this material is water insoluble, has good water-resistance and grease resistance, and fusing point can reach 180 DEG C, and stretch modulus and bending modulus are 3-4GPa and 4-5GPa, and easily degrade; Two is application PLA processing of high molecular material formed high-strength filling screen casings, and is applied on coated sand filling tubing string.Be characterized in: 1, intensity is higher, can bear maximum pressure is about 18MPa, and deflection is only 1.30mm, can bear high bottom pressure (pressure of about 3000m), meet the requirement of sand-proof pipe for intensity; 2, fast degradation, there is destructible, be easy to from down-hole take out feature; Three is (60 DEG C-70 DEG C) can dissolve voluntarily for 110 days under oil reservoir environment from the solvable filling screen casing of degraded; Four is filter out degradation agent system B-1, and this system is organic solvent, little to environmental disruption, simultaneously under the condition of simulation reservoir temperature, can be degradable at 3h-4h, and mining site demand can be met.
Embodiment 1: under enter " packing tool+solvable screen casing " tubing string, annular pack coated sand, after coated sand consolidation, trips out filling tubing string, generates similar sand screen sand control system in shaft bottom, and sand control directly bored after losing efficacy filled in sand control again.This sand control technique pit shaft does not stay sand control pipe, and Some tools is reusable, can greatly reduce sand control cost, and convenient post-treatment.
On-the-spot applicable cases:
Application carries out sand control construction from the solvable filling screen casing of degraded, amount to and implement oil well 26 mouthfuls, 25 wells, job success ratio reaches 100%, average individual well daily fluid production rate improves 13.9t, is 2.8 times of original liquid measure, and average individual well increases day by day oily 2.4 tons, accumulative increasing oil 32733 tons, has seen good effect (seeing the following form).
Typical case's well example
GD1-2-6 well, produces Ng31-33, effective thickness 6.7m.Operation last time adopts merely highly oozes high-strength coated sand sand control, do not bore plug, this subjob employing 0.4-0.8mm is high oozes high-strength coated sand+degraded solvable filling screen casing operation certainly, normally produce 447 days at present, daily fluid production rate, by the 8.4t/d before operation, rises to 26.4t/d, and steadily produces always, improve the feed flow situation of oil well, obtain reasonable effect.
Embodiment 2: also can select the more superior solvable high-strength material of other performance, by changing ambient conditions, realizes departing from object.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (6)
1., from a degraded high strength filling pipe, it is characterized in that, comprise slotted base pipe, polymer tube, described polymer tube is tightly placed in slotted base pipe outside, and described polymer tube outer wall evenly offers the through guiding gutter of at least three axis.
2. one according to claim 1 is from degraded high strength filling pipe, and it is characterized in that, described guiding gutter forms the vertical muscle on slotted base pipe outer wall between any two.
3. one according to claim 1 is from degraded high strength filling pipe, and it is characterized in that, the two ends of described slotted base pipe are all connected with box cupling.
4. one according to claim 3 is from degraded high strength filling pipe, and it is characterized in that, described box cupling is arranged in slotted base pipe by snap ring.
5. one according to claim 3 is from degraded high strength filling pipe, and it is characterized in that, described slotted base pipe, polymer tube, box cupling all adopt PLA macromolecular material.
6. one according to claim 1 is from degraded high strength filling pipe, and it is characterized in that, the tube wall of described slotted base pipe, polymer tube all offers axial slot sieve aperture, slot sieve aperture is through diametrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520676920.5U CN205013042U (en) | 2015-09-02 | 2015-09-02 | From degradation high strength filling pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520676920.5U CN205013042U (en) | 2015-09-02 | 2015-09-02 | From degradation high strength filling pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013042U true CN205013042U (en) | 2016-02-03 |
Family
ID=55211651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520676920.5U Expired - Fee Related CN205013042U (en) | 2015-09-02 | 2015-09-02 | From degradation high strength filling pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481356A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | From degraded high intensity filling pipe |
-
2015
- 2015-09-02 CN CN201520676920.5U patent/CN205013042U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481356A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | From degraded high intensity filling pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104533287A (en) | Drilling and completion and production increasing system for shale gas reservoir of multilateral fishbone horizontal well | |
| CN102330545A (en) | Oil well sand prevention method for heavy oil reservoir | |
| CN103835287B (en) | A kind of construction method of compacted diameter-variable pile | |
| CN103603342A (en) | Construction method of ultra-long bored concrete pile with large-diameter casing combination | |
| CN107489405A (en) | Coiled tubing drags abrasive perforating and the method for annular space back-up sand staged fracturing | |
| CN108868734A (en) | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method | |
| CN104695923A (en) | Method for realizing sectional multi-cluster fracture of horizontal well by adopting soluble balls | |
| CN203201467U (en) | Steering tool for jet drilling radial well through hydraulic-controlled hollow spherical joint connection | |
| CN101922149B (en) | Construction method and construction equipment for one-step molded hole digging pile protecting wall | |
| CN205013042U (en) | From degradation high strength filling pipe | |
| Xiumin et al. | Research and application of gas-lift reverse circulation drilling technology to geothermal well construction in Dalian Jiaoliu Island | |
| CN1995689B (en) | Pile forming method of pile forming mechanism with gyro bit | |
| CN105625944B (en) | With the boring method of the isometrical sidetrack horizontal well of former well shaft | |
| CN105019870A (en) | Method for sand control of oil well | |
| CN203430446U (en) | Horizontal well turbine sand cleaning device | |
| CN203847014U (en) | Auxiliary device facilitating recovering of offshore drilling marine riser | |
| CN204252864U (en) | A kind of drilling tool | |
| CN206034430U (en) | Single pile reducing inlays rock secant pile | |
| CN204804733U (en) | Fusiformis drift size gauge tool instrument | |
| CN206015511U (en) | One implant post steel pipe column | |
| CN105201436B (en) | The method of high-pressure hose is sent into using narrow gap high-velocity fluid drag | |
| CN204252927U (en) | A kind of cementing tool | |
| CN206205778U (en) | A kind of underground is slidingly sealed instrument and its unlimited extended reach drilling device | |
| CN210460560U (en) | Bushing type small core coring device | |
| CN106481356A (en) | From degraded high intensity filling pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20200902 |