CN101701513B - Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well - Google Patents
Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well Download PDFInfo
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- CN101701513B CN101701513B CN 200910229932 CN200910229932A CN101701513B CN 101701513 B CN101701513 B CN 101701513B CN 200910229932 CN200910229932 CN 200910229932 CN 200910229932 A CN200910229932 A CN 200910229932A CN 101701513 B CN101701513 B CN 101701513B
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- tubular column
- sand control
- open
- well
- cementing
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- 239000004576 sand Substances 0.000 title claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 210000000214 Mouth Anatomy 0.000 claims description 34
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 239000010985 leather Substances 0.000 claims description 14
- 210000000078 Claw Anatomy 0.000 claims description 7
- 210000004907 Glands Anatomy 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 210000003128 Head Anatomy 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 210000000664 Rectum Anatomy 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a drilling-plug free tubular column with sand control and well cementation for an open-hole horizontal well, which comprises an external tubular column and an inner tubular column. The external tubular column comprises a sand control screen (2), an open-hole packer (3), an external positioning step (4), an external cementing machine (5) and a sleeve tube (6) are sequentially installed and connected on the an acid-washing filling valve (1). The inner tubular column comprises an oil tube (8) and an inner cementing machine (7) which is installed and connected on the oil tube (8). The inner tubular column is arranged in the external tubular column and the inner tubular column and the external tubular column are mutually fixed sealed. The invention can simplify operating procedures and reduce the frequency of running string, and does not need to perform drilling-plug operation free after cementing for well cementation, and also has the advantages of low operating cost, large drift diameter, regular inner wall, clean well-hole of sand control and well completion, high construction success ratio, large construction stability, low labor intensity, high oil well yield and the like, and can be widely applied to the process of sand control, well cementation and well completion of the open-hole horizontal well for oil exploration.
Description
One, technical field
The present invention relates to the oil exploitation down-hole string, particularly a kind of drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well.
Two, background technology
The horizontal well of oil exploitation adopts the mode of barefoot completion, has the contact area that increases well bore and oil reservoir, discharges stratum energy to a greater degree, improves oil well output, and few well is developed advantage efficiently.At present open-hole horizontal well mainly adopts two modes of opening sand control completion, and the sand control completion tubing string mainly adopts band blind hole type down-hole string, the tubing string of this structure is that open-hole horizontal well sand control and well cementation engineering has been brought into play effect, but it exists following shortcoming or deficiency: 1. in the lower going-into-well behind the cementing well tubing string, also need to be lowered to and bore the plug tubing string, bore the plug operation, bore four parts such as meeting shut-off plug, sizing collar inner chamber, cement plug and blind plate, the brill plug cycle is long, and the pressure of the drill is difficult to control; 2. exist casing side tracking, down-hole casing to become less severe and the risk of bit freezing; 3. bore in the plug process and easily stay drilling cuttings in the horizontal segment tubing string, when carrying out the subsequent job operation, the instrument that external diameter is bigger easily is hampered in the horizontal segment tubing string or meets card; 4. because open-hole annulus and sleeve pipe tubing string are separated by blind plate, be lowered in the process at tubing string, the mud in the uncased wellbore can't be discharged in the sleeve pipe tubing string, is forced to clamp-on the stratum, has increased the weight of the pollution of mud to the stratum, influences oil well output; 5. for guaranteeing being lowered to smoothly of blind hole type bore hole sand control completion tubing string, also need stop to bore down, wait for and manually carry out mud grouting in the sleeve pipe, troublesome poeration; 6. job success ratio is low.
Three, summary of the invention
The purpose of this invention is to provide a kind of drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well, adopt inside and outside tubing string and inside and outside cementing device structure, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well of the present invention comprises outer tubing string and interior tubing string.Described outer tubing string comprises installs sand control screen, open hole packer outside fix step, outer cementing device and the sleeve pipe that connects in turn on the acid cleaning filling valve.Interior tubing string comprises oil pipe and goes up the interior cementing device of connection.Interior tubing string is installed in the outer tubing string, interfixes between the inside and outside tubing string and seals.
Wherein, described outer cementing device comprises the outer sleeve of connection, spring, inner sliding sleeve and lower contact in turn in the top connection.The seal that seals mutually with outer sleeve is installed on the inner sliding sleeve.Described spring is installed in the space between top connection lower end and the inner sliding sleeve upper end.Described outer sleeve bottom is provided with outer cementing mouth, and inner sliding sleeve is placed in the outer cementing mouth place in the outer sleeve, the Push And Release of cementing mouth outside the control under the effect of spring.Cementing device comprises central tube and the internal conversion head that connects in turn in the top connection in described, and an internal conversion lower end is blind hole, is connected as a single entity with the external conversion tube.The last leather cup cover of the outer connection in turn of top connection, upward leather cup, adapter sleeve, upward gland, location bundle pawl tube, spring, piston bush, spring pad, stay pipe, external conversion tube, down cup cover, down cup and lower contact.The double wall chamber passage that described external conversion tube and an internal conversion junction are provided with effluent mouth, cementing mouth and isolate mutually with it, effluent mouth and cementing mouth and central tube intracavity inter-connection.Described upward leather cup puts and is provided with anti-head piece, and this anti-head piece is with central tube, internal conversion head and last leather cup cover, adapter sleeve, upward the double wall chamber passage of gland, stay pipe, external conversion tube, location bundle pawl tube formation is connected.Described piston bush is installed between location bundle pawl tube and the stay pipe, and the piston bush lower end is the male cone (strobilus masculinus) projection.Bundle pawl tube top, described location is the pipe body, and the bottom is the claw type structure, and this claw type is provided with the internal projection that matches with piston bush male cone (strobilus masculinus) projection, and the same position place of this internal projection is provided with the location outer lug boss.Described inner sliding sleeve top is provided with cannelure in.
The present invention has the following advantages compared with prior art:
1, simplify operation procedure, reduce running string, after the cementing well, do not need to bore the plug tubing string down and bore the plug operation, operating cost is low;
2, avoid boring many disadvantages and the risk of filling in the work progress;
3, provide a sand control completion pit shaft that the cover latus rectum is big, inwall is regular, clean;
4, construction success rate height, construction reliability is big, labour intensity is low;
5, formation contaminant is little, oil well output is high.
Four, description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present invention.
Fig. 2 is for pressing outer cementing device structural representation shown in Figure 1.
Fig. 3 is for pressing interior cementing device structural representation shown in Figure 1.
Fig. 4 is for pressing A_A shown in Figure 3 to structural representation
Five, the specific embodiment
Consult Fig. 1-Fig. 4, a kind of drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well comprises outer tubing string and interior tubing string.Outer tubing string comprises installs sand control screen 2, open hole packer 3, outside fix step 4, outer cementing device 5 and the sleeve pipe 6 that connects in turn on the acid cleaning filling valve 1.Interior tubing string comprises oil pipe 8 and goes up the interior cementing device 7 of connection.Interior tubing string is installed in the outer tubing string, interfixes between the inside and outside tubing string and seals.
Outer cementing device 5 comprises outer sleeve 10, spring 11, inner sliding sleeve 13 and the lower contact 15 of connection in turn in the top connection 9.The seal 12 that seals mutually with outer sleeve 10 is installed on the inner sliding sleeve 13.Spring 11 is installed in the space between top connection 9 lower ends and inner sliding sleeve 13 upper ends.Outer sleeve 10 bottoms are provided with the outer cementing mouth 14 of 2-6 (being expressed as 4 among the figure) circumference uniform distribution.Slide up and down in the sealing surface of inner sliding sleeve 13 circle in outer sleeve 10, under the effect of spring 11, open or close outer cementing mouth 14.Interior cementing device 7 comprises in the top connection 16 central tube 17 that connects in turn and internal conversion 29, and internal conversion 29 lower end are blind hole, are connected as a single entity with external conversion tube 28; The last leather cup cover 19 of top connection 16 outer connections in turn, upward leather cup 20, adapter sleeve 21, upward gland 22, location bundle pawl tube 27, spring 23, piston bush 26, spring pad 24, stay pipe 25, external conversion tube 28, down cup cover 31, down cup 32 and lower contact 33.The double wall chamber passage 35 that external conversion tube 28 and internal conversion 29 junction are provided with effluent mouth 34, cementing mouth 30 and isolate mutually with it.Effluent mouth 34 and cementing mouth 30 and central tube 17 intracavity inter-connections.Last leather cup cover 19 is provided with anti-head piece 18, this anti-head piece 18 and central tube 17, internal conversion 29 and last leather cup cover 19, adapter sleeve 21, goes up gland 22, stay pipe 25, external conversion tube 28, location and restraints the double wall chamber passage 35 of pawl tube 27 formations and be connected.Piston bush 26 is installed between location bundle pawl tube 27 and the stay pipe 25, and piston bush 26 lower ends are provided with the male cone (strobilus masculinus) projection.Location bundle pawl tube 27 tops are the pipe body, and the bottom is the claw type structure, and this claw type is provided with the internal projection that matches with the male cone (strobilus masculinus) projection of piston bush 26 and the same position place of this internal projection is provided with the location outer lug boss.Inner sliding sleeve 13 tops are provided with cannelure in, cannelure and the interior round-formed step of two certain angles up and down in this.
Inner sliding sleeve 13 cylindricals are sealing surface, and the upper and lower part of its cylindrical is equipped with sealing ring 12.Circle is sealing surface near outer cementing mouth 14 top and the bottom the outer sleeve 10.The circle upper diameter diminishes in the outer sleeve 10, forms limited step with sealing surface.Spring 23 and spring pad 24 are installed in the space between gland 22 lower ends and piston bush 26 upper ends.
During operation, in completed open-hole horizontal well tube, interior tubing string is lowered in the outer tubing string, and interior cementing device 7 places below the position of open hole packer 3.On carry interior tubing string, observing the ground suspending weight changes, if suspending weight increases suddenly, 4 times corresponding location of the conical surface of the last conical surface and outside fix step of location on the cementing device 7 bundle pawl tube 27 location outer lug boss in this moment are described, outside fix step 4 is outside near tubing string open hole packer 3 tops, circle forms convex in the junction, and convex is the conical surface of certain angle up and down.Last leather cup 20 on the outer cementing device 7 seals inside and outside tubing string mutually with down cup 32.Suppress from oil pipe 8, fluid power enters inlet on the open hole packer 3, the envelope that expands open hole packer 3, packing open-hole annulus from oil pipe 8 through effluent mouths 34 and cementing mouth 30.Sand control screen 2 on the outer tubing string blocks reservoir sand, prevents that it from entering in the pit shaft, reaches the purpose of sand control.
After open hole packer 3 bloated envelopes are finished, tubing string is near the outer cementing device 5 in carrying in the continuation, observing the ground suspending weight changes, if suspending weight increases suddenly, illustrate that the bundle of the location on the cementing device 7 pawl tube 27 location outer lug boss just in time are stuck in the interior cannelure of inner sliding sleeve 13 in this moment, and will move the limited step place on the circle in the outer sleeve 10 on the inner sliding sleeve 13 to, compression spring 11, outer cementing mouth 14 is opened, and is connected with oil pipe 8, effluent mouth 34, cementing mouth 30.Last leather cup 20 on the interior cementing device 7 and down cup 32 cementing mouth outside are neighbouring with the inner and outer pipes column sealing about in the of 14, carry out cementing practice.In the cementing process, cement paste enters open-hole annulus from oil pipe 8 through effluent mouth 34, cementing mouth 30, outer cementing mouth 14, upwards is circulated to ground along open-hole annulus.In this process, circulation canal is interior owing to there is hydraulic pressure in cementing, piston bush 26 is at the limited step place that is moved upward under the effect of hydraulic pressure on stay pipe 25 cylindricals, the conical surface will tightly support the following conical surface of location bundle pawl tube 27 internal projection on the piston bush 26 cylindrical bottom convexes, make location bundle pawl tube 27 location outer lug boss firmly be fixed in the interior cannelure of inner sliding sleeve 13, thereby inside and outside tubing string is tightly interfixed.After cement paste injected and to finish, hydraulic pressure disappeared in the circulation canal, resetted at the effect lower piston cover 26 of spring 23, transferred interior tubing string, and inner sliding sleeve 13 is closed outer cementing mouth 14 to lower slider under the effect of spring 11.Squeeze into mud the annular space between oil pipe 8 and sleeve pipe 6 this moment, mud enters in backwash mouth 18, double wall passage 34, the down cup cover 31, return through lower contact 33 bottoms, enter in the central tube 17 and in the oil pipe 8 through down cup 32 outsides, cementing mouth 30, effluent mouth 34 and to be circulated to ground, thus with in the cementing process in oil pipe 8 and central tube 17 unnecessary cement paste backwash clean.After backwash water mud was finished, closing well Hou Ning carried interior tubing string on afterwards, and the cementing well construction all finishes.
Claims (8)
1. drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well, comprise outer tubing string and interior tubing string, it is characterized in that described outer tubing string comprises sand control screen (2), open hole packer (3), outside fix step (4), outer cementing device (5) and the sleeve pipe (6) that connection is installed on the acid cleaning filling valve (1) in turn, interior tubing string comprises oil pipe (8) and goes up the interior cementing device (7) of connection, interior tubing string is installed in the outer tubing string, interfixes between the inside and outside tubing string and seals; Described outer cementing device (5) comprises the outer sleeve of connection (10), compression spring (11), inner sliding sleeve (13) and lower contact (15) in turn in the top connection (9), and the seal (12) that seals mutually with outer sleeve (10) is installed on the inner sliding sleeve (13); Cementing device (7) comprises central tube (17) and the internal conversion head (29) that connects in turn in the top connection (16) in described, internal conversion head (29) lower end is blind hole, be connected as a single entity the last leather cup cover (19) of the outer connection in turn of top connection (16), upward leather cup (20), adapter sleeve (21), upward gland (22), location bundle pawl tube (27), spring (23), piston bush (26), spring pad (24), stay pipe (25), external conversion tube (28), down cup cover (31), down cup (32) and lower contact (33) with external conversion tube (28).
2. drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well according to claim 1 is characterized in that described compression spring (11) is installed in the space between top connection (9) lower end and inner sliding sleeve (13) upper end.
3. drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well according to claim 1, it is characterized in that described outer sleeve (10) bottom is provided with outer cementing mouth (14), inner sliding sleeve (13) is placed in the inside and outside cementing mouth (14) of outer sleeve (10) and locates, the Push And Release of cementing mouth (14) outside the control under the effect of compression spring (11).
4. drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well according to claim 1 is characterized in that the double wall chamber passage (35) that described external conversion tube (28) and internal conversion head (29) junction are provided with effluent mouth (34), cementing mouth (30) and isolate mutually with effluent mouth (34), cementing mouth (30).
5. drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well according to claim 1, it is characterized in that the described leather cup cover (19) of going up is provided with anti-head piece (18), this anti-head piece (18) with by central tube (17), internal conversion head (29) and last leather cup cover (19), adapter sleeve (21), go up gland (22), stay pipe (25), external conversion tube (28), location and restraint the double wall chamber passage (35) of pawl tube (27) formation and be connected.
6. drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well according to claim 1 is characterized in that described piston bush (26) is installed between location bundle pawl tube (27) and the stay pipe (25), and piston bush (26) lower end is the male cone (strobilus masculinus) projection.
7. according to claim 1 or 6 described drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well, it is characterized in that bundle pawl tube (27) top, described location is the pipe body, the bottom is the claw type structure, this claw type is provided with the internal projection that matches with the male cone (strobilus masculinus) projection of piston bush (26), and the same position place of this claw type and internal projection is provided with the location outer lug boss.
8. according to claim 1 or 3 described drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well, it is characterized in that described inner sliding sleeve (13) top is provided with cannelure in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910229932 CN101701513B (en) | 2009-11-04 | 2009-11-04 | Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910229932 CN101701513B (en) | 2009-11-04 | 2009-11-04 | Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well |
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| Publication Number | Publication Date |
|---|---|
| CN101701513A CN101701513A (en) | 2010-05-05 |
| CN101701513B true CN101701513B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910229932 Active CN101701513B (en) | 2009-11-04 | 2009-11-04 | Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089194A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Method for completing well by cementing top of expandable screen |
| CN107152262A (en) * | 2016-03-04 | 2017-09-12 | 中国石油化工股份有限公司 | Multistage open-hole gravel pack sand control completion tubing string of horizontal well and method |
| CN107762444B (en) * | 2017-06-26 | 2021-07-02 | 中国海洋石油集团有限公司 | Integrated tubular column for well cementation and sand prevention and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5289876A (en) * | 1992-07-28 | 1994-03-01 | Natural Reserves Group, Inc. | Completing wells in incompetent formations |
| CN2929165Y (en) * | 2006-03-06 | 2007-08-01 | 淄博双通工贸有限责任公司 | Grading cement filling device without drill plug |
| CN101126311A (en) * | 2007-09-19 | 2008-02-20 | 刘文西 | Petroleum horizontal well expansion sand control screen device and expansion technique |
| CN201062503Y (en) * | 2007-07-12 | 2008-05-21 | 孔利生 | Barefoot well cement-injection well-completion pipe column |
| CN101343992A (en) * | 2008-08-27 | 2009-01-14 | 中国石化股份胜利油田分公司孤东采油厂 | Horizontal well drillable quartz sand filter tube sand-prevention assorted column jacket |
-
2009
- 2009-11-04 CN CN 200910229932 patent/CN101701513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5289876A (en) * | 1992-07-28 | 1994-03-01 | Natural Reserves Group, Inc. | Completing wells in incompetent formations |
| CN2929165Y (en) * | 2006-03-06 | 2007-08-01 | 淄博双通工贸有限责任公司 | Grading cement filling device without drill plug |
| CN201062503Y (en) * | 2007-07-12 | 2008-05-21 | 孔利生 | Barefoot well cement-injection well-completion pipe column |
| CN101126311A (en) * | 2007-09-19 | 2008-02-20 | 刘文西 | Petroleum horizontal well expansion sand control screen device and expansion technique |
| CN101343992A (en) * | 2008-08-27 | 2009-01-14 | 中国石化股份胜利油田分公司孤东采油厂 | Horizontal well drillable quartz sand filter tube sand-prevention assorted column jacket |
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| CN101701513A (en) | 2010-05-05 |
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Inventor after: Zhi Qingong Inventor after: Wu Qiong Inventor after: Xie Jinchuan Inventor after: Sun Sangdun Inventor after: Wu Jianping Inventor after: Gao Xuefeng Inventor after: Wang Dengqing Inventor after: Chen Gang Inventor after: Zhou Chengshi Inventor after: Gao Bin Inventor before: Zhi Qingong Inventor before: Xie Jinchuan Inventor before: Wu Jianping Inventor before: Gao Xuefeng Inventor before: Wang Dengqing Inventor before: Chen Gang Inventor before: Zhou Chengshi Inventor before: Gao Bin Inventor before: Wu Qiong |
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Free format text: CORRECT: INVENTOR; FROM: ZHI QINGONG XIE JINCHUAN WU JIANPING GAO XUEFENG WANG DENGQING CHEN GANG ZHOU CHENGSHI GAO BIN WU QIONG TO: ZHI QINGONG XIE JINCHUAN SUN SANGDUN WU JIANPING GAO XUEFENG WANG DENGQING CHEN GANG ZHOU CHENGSHI GAO BIN WU QIONG |