CN101372889B - Novel horizontal well sand preventing well completion structure - Google Patents
Novel horizontal well sand preventing well completion structure Download PDFInfo
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- CN101372889B CN101372889B CN200810119348A CN200810119348A CN101372889B CN 101372889 B CN101372889 B CN 101372889B CN 200810119348 A CN200810119348 A CN 200810119348A CN 200810119348 A CN200810119348 A CN 200810119348A CN 101372889 B CN101372889 B CN 101372889B
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- horizontal
- borehole wall
- well
- sandpipe
- horizontal segment
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Abstract
The invention relates to a sand control completion structure of a horizontal well, which comprises a well wall and a sand control tube, wherein the well wall comprises an ascending section and a horizontal section. A sleeve is arranged on the ascending section of the wall; one end of the horizontal section close the ascending section is the butt end, while the end far away from the ascending section is the tip end; the angle between the horizontal section of the wall and the horizontal plane varies from 0 to 20 degrees; the sand control tube is positioned inside the horizontal section of the well wall and fixedly connected with the well wall; and the cavity between the sand control tube and the well wall is filled with glassy hollow granules. The sand control completion structure of the horizontal well has the advantages of easy realization of the well completion process and good well completion quality.
Description
Technical field
The invention belongs to oil or natural gas extraction field, refer to a kind of horizontal well sand preventing well completion structure especially.
Background technology
Horizontal well is owing to have higher output and the extensive use in exploitation of oil-gas field of other advantage than straight well.In the oil and natural gas exploitation, the stratum that the quilt that has is exploited is loose sand oil-gas reservoir, has the phenomenon of shaking out in the production, need take measures to prevent that reservoir sand from flowing in the well with fluid, to guarantee the ordinary production of oil or natural gas.The reasonable horizontal well sand preventing well completion structure of sand controlling result comprises at present: the borehole wall and anti-sandpipe; The borehole wall is made up of ascent stage and horizontal segment; The horizontal segment of the borehole wall can also can past have a down dip toward tilting, and anti-sandpipe is positioned at the horizontal segment of the borehole wall and is fixedly connected with the borehole wall; Be filled with the gravel ring type filling in the annular space between the anti-sandpipe and the borehole wall, the particle diameter of gravel is 0.4mm～2mm.
Horizontal segment is called butt near a section of ascent stage, is called finger tip away from the end of ascent stage.
There is following point in this horizontal well sand preventing well completion structure: the completion process difficulty of horizontal well sand preventing well completion structure is big, and the completion quality does not have guarantee.The completion process of this horizontal well sand preventing well completion structure is: well-digging earlier; Be lowered to anti-sandpipe again in horizontal segment; Anti-sandpipe is connected to packer for one section near butt, the annular pack gravel between the borehole wall and anti-sandpipe then, and filling is to send in the annular space between the borehole wall and the anti-sandpipe with the water that pump will carry gravel; Water is drained after being squeezed in the anti-sandpipe, and gravel is constantly preventing that accumulation forms the gravel ring on the sandpipe.In actual stowing operation, usually have the unreal situation of gravel pack, show as: the one, part filling phenomenon appears at the horizontal segment section that has, promptly the top of the annular space between the borehole wall and the anti-sandpipe occur filling less than phenomenon; The 2nd, the annular space between the borehole wall and the anti-sandpipe occur in axial section part filling less than phenomenon.Annular pack between the borehole wall and anti-sandpipe is less than the place of gravel like this; Anti-sandpipe easy blocking, completion poor quality causes oil or gas extraction amount to descend, and it is big to occur sand content in the oil of extraction or the natural gas easily; Or seriously shake out, even make the horizontal well cisco unity malfunction.
Summary of the invention
It is easy to the purpose of this invention is to provide a kind of completion process, the measured horizontal well sand preventing well completion structure of completion matter.
For realizing above-mentioned purpose, the present invention takes following design scheme:
A kind of horizontal well sand preventing well completion structure comprises: the borehole wall and anti-sandpipe, and the said borehole wall is made up of ascent stage and horizontal segment; The ascent stage of the said borehole wall is provided with sleeve pipe; Said horizontal segment is a butt near the end of ascent stage, is finger tip away from the end of ascent stage, and the angle between said horizontal segment and the horizontal plane is 0～20 degree; Said anti-sandpipe is positioned at said horizontal segment; Anti-sandpipe is fixedly connected with the said borehole wall near an end of the butt of horizontal segment, it is characterized in that, being full of in the cavity between the anti-sandpipe and the borehole wall has vitreous hollow bead.
Said vitreous hollow bead is the hollow bead in the flyash of burning back formation.
Said vitreous hollow bead is artificial hollow glass ball.
The density of said vitreous hollow bead is 0.5～1.8g/cm
3
The particle diameter of said vitreous hollow bead is 30～1000um.
The horizontal segment of the said borehole wall is the bore hole borehole wall, and said anti-sandpipe is fixedly connected with said sleeve pipe through packer near an end of the butt of horizontal segment.
The horizontal segment of the said borehole wall is that the said anti-sandpipe of perforated casing is fixedly connected with sleeve pipe through packer.
Obscuring on understand explained vitreous implication hereby.Vitreous implication of the present invention is to be main component with silica, and forming process forms from the fusion cooling as the forming process of glass, and the cooling procedure medium viscosity progressively increases and hardens, and non crystallized material.
Advantage of the present invention is:
1, horizontal well sand preventing well completion structure of the present invention; Owing to adopt above design scheme; In the completion process, will carry the water of vitreous hollow bead with pump and send in the cavity between the borehole wall and the anti-sandpipe, water is drained after being squeezed in the anti-sandpipe subsequently; And vitreous hollow bead is stayed in the cavity between the borehole wall and the anti-sandpipe and on anti-sandpipe, pile up, and at last the cavity between the borehole wall and the anti-sandpipe is filled completely vitreous hollow bead.To compare the flow of required pump little with filling gravel for the hollow bead of the cavity filling glass matter of the present invention between the borehole wall and anti-sandpipe, and loading time is short, is easy to fill full; The filling process cost is low; Filling quality (mainly referring to fill the true degree of packing) is secure, prevents sand control pipe plug plug, and sand controlling result is good.
2, horizontal well sand preventing well completion structure of the present invention; Fill hollow bead or artificial hollow glass marble in the flyash that forms after the burning in the cavity between the borehole wall and anti-sandpipe, this hollow bead and artificial hollow glass marble have the intensity height, never degenerate in the use; The source is wide, the characteristics that cost is low.
3, horizontal well sand preventing well completion structure of the present invention, the density of vitreous hollow bead of filling in the cavity between the borehole wall and anti-sandpipe is 0.5～1.8g/cm
3, be easy to water and carry filling, and the flow of required pump being little, loading time is short, and the filling consolidation effectively prevents sand control pipe plug plug, and sand controlling result is good.
4, horizontal well sand preventing well completion structure of the present invention, wherein the particle diameter of vitreous hollow bead is 30～1000um, sand controlling result is good, and does not influence oil recovery or natural gas, does not also influence water filling or notes steam or annotates other displacing medium.
5, the hollow bead of the cavity filling glass matter of the present invention between the borehole wall and anti-sandpipe has the advantage of high temperature of high temperature and the steam on anti-stratum, is applicable to that steam-assisted recovery well or steam inject well, also are applicable to other high temperature well such as deep-well.
Description of drawings
Fig. 1 representes the embodiment of the invention one structural representation
Fig. 2 representes the embodiment of the invention two structural representations
The specific embodiment
Like Fig. 1, shown in Figure 2, a kind of horizontal well sand preventing well completion structure comprises: the borehole wall 1 and anti-sandpipe 2; The borehole wall 1 is made up of ascent stage 4 and horizontal segment 5, and the ascent stage 4 of the borehole wall is provided with sleeve pipe, and horizontal segment 5 is a butt near the end of ascent stage 4; End away from the ascent stage 4 is a finger tip, and the horizontal segment 5 of the borehole wall 1 and the angle between the horizontal plane are 0 degree or 10 degree or 20 degree, and horizontal segment 5 can be toward tilting; Also can be toward having a down dip; Anti-sandpipe 2 is positioned at the horizontal segment 5 of the borehole wall 1 and is fixedly connected with the borehole wall 1, it is characterized in that, being full of in the cavity between the anti-sandpipe 2 and the borehole wall 1 has vitreous hollow bead 6.
Vitreous hollow bead 6 is the hollow bead in the flyash of burning back formation.
Vitreous hollow bead 6 is artificial hollow glass ball.
The density of vitreous hollow bead 6 is 0.5～1.8g/cm
3
The particle diameter of vitreous hollow bead 6 is 30～1000um.
The horizontal segment 5 of the borehole wall is the bore hole borehole wall (as shown in Figure 2), and anti-sandpipe 2 is fixedly connected with sleeve pipe in the ascent stage through packer 3 near an end of the butt of horizontal segment.
The horizontal segment 5 of the borehole wall is perforated casing (as shown in Figure 1, it is a borehole wall perforation completion), and anti-sandpipe 2 is fixedly connected with sleeve pipe through packer.
Horizontal well sand preventing well completion structure of the present invention, it both had been applicable to and had recovered the oil or the producing well of natural gas, also was applicable to water filling or annotated steam or annotate the injection well of other displacing medium.
Claims (10)
1. horizontal well sand preventing well completion structure comprises: the borehole wall and anti-sandpipe, and the said borehole wall is made up of ascent stage and horizontal segment; The ascent stage of the said borehole wall is provided with sleeve pipe; Said horizontal segment is a butt near the end of ascent stage, is finger tip away from the end of ascent stage, and the angle between said horizontal segment and the horizontal plane is 0～20 degree; Said anti-sandpipe is positioned at said horizontal segment; Anti-sandpipe is fixedly connected with the said borehole wall near an end of the butt of horizontal segment, it is characterized in that, being full of in the cavity between the anti-sandpipe and the borehole wall has vitreous hollow bead.
2. horizontal well sand preventing well completion structure as claimed in claim 1 is characterized in that, said vitreous hollow bead is the hollow bead in the flyash of burning back formation.
3. horizontal well sand preventing well completion structure as claimed in claim 1 is characterized in that, said vitreous hollow bead is artificial hollow glass ball.
4. like claim 1 or 2 or 3 described horizontal well sand preventing well completion structures, it is characterized in that the density of said vitreous hollow bead is 0.5～1.8g/cm
3
5. like claim 1 or 2 or 3 described horizontal well sand preventing well completion structures, it is characterized in that the particle diameter of said vitreous hollow bead is 30～1000um.
6. horizontal well sand preventing well completion structure as claimed in claim 4 is characterized in that, the particle diameter of said vitreous hollow bead is 30～1000um.
7. like claim 1 or 2 or 3 described horizontal well sand preventing well completion structures, it is characterized in that the horizontal segment of the said borehole wall is the bore hole borehole wall, said anti-sandpipe is fixedly connected with said sleeve pipe through packer near an end of the butt of horizontal segment.
8. horizontal well sand preventing well completion structure as claimed in claim 4 is characterized in that, the horizontal segment of the said borehole wall is the bore hole borehole wall, and said anti-sandpipe is fixedly connected with said sleeve pipe through packer near an end of the butt of horizontal segment.
9. like claim 1 or 2 or 3 described horizontal well sand preventing well completion structures, it is characterized in that the horizontal segment of the said borehole wall is a perforated casing, said anti-sandpipe is fixedly connected with said sleeve pipe through packer.
10. horizontal well sand preventing well completion structure as claimed in claim 4 is characterized in that, the horizontal segment of the said borehole wall is a perforated casing, and said anti-sandpipe is fixedly connected with said sleeve pipe through packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810119348A CN101372889B (en) | 2008-09-04 | 2008-09-04 | Novel horizontal well sand preventing well completion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810119348A CN101372889B (en) | 2008-09-04 | 2008-09-04 | Novel horizontal well sand preventing well completion structure |
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| Publication Number | Publication Date |
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| CN101372889A CN101372889A (en) | 2009-02-25 |
| CN101372889B true CN101372889B (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810119348A Expired - Fee Related CN101372889B (en) | 2008-09-04 | 2008-09-04 | Novel horizontal well sand preventing well completion structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705809B (en) * | 2009-12-11 | 2012-12-26 | 安东石油技术（集团）有限公司 | Segmented current controlling method of current controlling filter pipe column of oil-gas well having sand control pipe |
| CN101705808B (en) | 2009-12-11 | 2012-05-30 | 安东石油技术（集团）有限公司 | Sectional flow control method for flow control filter pipe column of oil-gas well with bushing outside channel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125694U (en) * | 1992-05-05 | 1992-12-23 | 李涛 | Two-layer screen tube sand prevention unit |
| US5375661A (en) * | 1993-10-13 | 1994-12-27 | Halliburton Company | Well completion method |
| CN1141661A (en) * | 1994-11-23 | 1997-01-29 | 切夫里昂美国公司 | Method for sub-surface fluid shut-off |
| CN1186149A (en) * | 1996-12-22 | 1998-07-01 | 胜利石油管理局孤东采油厂 | Anti-sand filling material for oil well and water well and preparation thereof |
| US6318465B1 (en) * | 1998-11-03 | 2001-11-20 | Baker Hughes Incorporated | Unconsolidated zonal isolation and control |
| CN1884397A (en) * | 2006-05-24 | 2006-12-27 | 西南石油大学 | Hydrophobic oleophilic self-cementing sand and its preparation method |
| WO2007063325A1 (en) * | 2005-12-01 | 2007-06-07 | Visible Technology Oil & Gas Limited | Particles |
| CN101255786A (en) * | 2008-04-15 | 2008-09-03 | 中国石化集团胜利石油管理局石油开发中心 | Method for backfilling and prevention of sand in horizontal well pipe |
-
2008
- 2008-09-04 CN CN200810119348A patent/CN101372889B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125694U (en) * | 1992-05-05 | 1992-12-23 | 李涛 | Two-layer screen tube sand prevention unit |
| US5375661A (en) * | 1993-10-13 | 1994-12-27 | Halliburton Company | Well completion method |
| CN1141661A (en) * | 1994-11-23 | 1997-01-29 | 切夫里昂美国公司 | Method for sub-surface fluid shut-off |
| CN1186149A (en) * | 1996-12-22 | 1998-07-01 | 胜利石油管理局孤东采油厂 | Anti-sand filling material for oil well and water well and preparation thereof |
| US6318465B1 (en) * | 1998-11-03 | 2001-11-20 | Baker Hughes Incorporated | Unconsolidated zonal isolation and control |
| WO2007063325A1 (en) * | 2005-12-01 | 2007-06-07 | Visible Technology Oil & Gas Limited | Particles |
| CN1884397A (en) * | 2006-05-24 | 2006-12-27 | 西南石油大学 | Hydrophobic oleophilic self-cementing sand and its preparation method |
| CN101255786A (en) * | 2008-04-15 | 2008-09-03 | 中国石化集团胜利石油管理局石油开发中心 | Method for backfilling and prevention of sand in horizontal well pipe |
Non-Patent Citations (2)
| Title |
|---|
| 全北平等.粉煤灰空心微珠的研究与应用进展.《化工矿物与加工》.2003,(第11期), * |
| 赵德喜.粉煤灰空心漂珠用于油田固井.《工业建筑》.1991,(第04期), * |
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| CN101372889A (en) | 2009-02-25 |
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Owner name: ANTON BERLIN OIL TECHNOLOGY (BEIJING) CO., LTD. Free format text: FORMER OWNER: ANDONG PETROLEUM TECHNOLOGY (GROUP) CO., LTD. Effective date: 20130617 |
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Free format text: CORRECT: ADDRESS; FROM: 100102 CHAOYANG, BEIJING TO: 102200 CHANGPING, BEIJING |
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Effective date of registration: 20130617 Address after: 102200 Beijing Changping District Science Park Road No. 10, No. 2 white floating floor 2 Room 215 Patentee after: ANTON BAILIN OILFIELD TECHNOLOGY (BEIJING) Co.,Ltd. Address before: 100102 Beijing, East Lake, No. West Road screen screen Road, No. 8 Patentee before: Anton Oilfield Services (Group) Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20210904 |
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| CF01 | Termination of patent right due to non-payment of annual fee |