CN203702110U - Horizontal well out-pipe staged fracturing sand prevention pipe column - Google Patents
Horizontal well out-pipe staged fracturing sand prevention pipe column Download PDFInfo
- Publication number
- CN203702110U CN203702110U CN201420014319.5U CN201420014319U CN203702110U CN 203702110 U CN203702110 U CN 203702110U CN 201420014319 U CN201420014319 U CN 201420014319U CN 203702110 U CN203702110 U CN 203702110U
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- China
- Prior art keywords
- filling
- pipe
- sliding sleeve
- tool
- well
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Abstract
Provided is a horizontal well out-pipe staged fracturing sand prevention pipe column. A filling service pipe column is placed in an out-pipe staged fracturing filling sand prevention well retaining pipe column. The out-pipe fracturing filling sand prevention well retaining pipe column comprises an intermediate casing, a well cementation grading hoop, a well cementation out-pipe packer, filling tool assemblies, a screen pipe and a guide shoe, wherein the well cementation grading hoop, the well cementation out-pipe packer, the filling tool assemblies, the screen pipe and the guide shoe are arranged on the intermediate casing and sequentially connected; the filling service pipe column comprises a fluid spacing sealing device, a filling pipe, a fluid spacing pipe, a filling conversion device, a flexible pressure measuring device, a rotary positioning tool, a sliding sleeve closing tool, a sliding sleeve opening tool and an isolation sealing assembly, wherein the filling pipe, the fluid spacing pipe, the filling conversion device, the flexible pressure measuring device, the rotary positioning tool, the sliding sleeve closing tool, the sliding sleeve opening tool and the isolation sealing assembly are sequentially connected and installed on the lower portion of the fluid spacing sealing device, the upper end of the filling pipe and the upper end of the fluid spacing pipe are connected with the fluid spacing sealing device in parallel, the lower end of the filling pipe and the lower end of the fluid spacing pipe are connected with the filling conversion device in parallel, a fluid flow cavity is arranged between the filling pipe and the fluid spacing pipe and communicated with a fluid flow opening in the upper portion of the fluid spacing sealing device, each filling tool assembly comprises an upper sealing cylinder, a filling pipe outer packer, a filling sliding sleeve, a lower sealing cylinder and a positioning coupling, and the filling pipe outer packer, the filling sliding sleeve, the lower sealing cylinder and the positioning coupling of each filling tool assembly are sequentially connected and installed on the upper sealing cylinder of each filling tool assembly. The pipe column is widely applied to the oil field oil production technology.
Description
Technical field
The utility model relates to oil exploitation well bore hole sand-preventing process and device, particularly a kind of horizontal well tube exterior subsection fracturing sand control tubing string.
Background technology
Publication number is CN101435321A, within open day, be that the Chinese patent literature on May 20th, 2009 discloses a kind of " horizontal well tube exterior subsection gravel filling sand prevention process and tubing string ", this process pipe string is that oil development production practice has been brought into play effect, but it exists following shortcoming or deficiency simultaneously: 1. sublevel fill stoping packer is placed in to screen casing inside, just the annular space between sand control screen and oil pipe is divided into not connected multiple well sections, can not implements effective separation of interval.2. this process pipe string is not set up sealing system, and the interference between filling bed easily occurs.3. after sand off, back-up sand meeting is returned to tell in a large number and is caused filling leakiness.4. cannot verify whether sliding sleeve closes, the success or failure of direct relation filling anti-sand technique.5. be prone to sand bridge when the general bottom filling of long horizontal well and cause sand control failure.
Summary of the invention
The purpose of this utility model is to provide a kind of horizontal well tube exterior subsection fracturing sand control tubing string, adopt filling service tube-column pipe to be lowered to tube exterior subsection pressure crack filling anti-sand and stay the structure in well casing post, can realize tubing string multilayer filling anti-sand, fracture acidizing operation twice, effectively overcome or avoid the shortcoming or the deficiency that in above-mentioned prior art, exist.
Horizontal well tube exterior subsection fracturing sand control tubing string described in the utility model, comprises that tube exterior subsection pressure crack filling anti-sand stays well casing post and filling service tube-column, and filling service tube-column pipe is lowered to tube exterior subsection pressure crack filling anti-sand and stays in well casing post.The outer pressure crack filling anti-sand of described pipe stays well casing post, comprise protective casing and on connected cementing well stage collar, well cementing pipe external packer, packing tool assembly, screen casing and guide shoe in turn; Described filling service tube-column, comprise every sealing device and its underpart the filling pipe of connection is installed in turn, every liquid pipe, filling conversion equipment, flexible pressure tester, rotation orientation tool, sliding bush closing tool, sliding sleeve switch instrument, isolating seal assembly, filling pipe and upper end every liquid pipe are connected with every sealing device is parallel, lower end is parallel to be connected with filling conversion equipment is parallel, filling pipe and be provided with liquid stream annular space between liquid pipe, is connected with the liquid head piece every sealing device top; Described packing tool assembly comprise top seal cylinder and on the filling pipe external packer, filling sliding sleeve, lower seal cylinder and the location box cupling that connect are installed in turn.
Wherein, described packing tool assembly is at least provided with one-level.(being expressed as 3 grades in figure) described filling sliding sleeve, comprise the top extension being connected with top seal cylinder, extension bottom, top is connected with filling cylinder, sealing drum, variable buckle box cupling in turn, machinery sliding sleeve is arranged on filling cylinder inside and is free to slide, pressure reduction sliding sleeve is installed on filling cylinder inside, spacing by keyway, stop collar is connected with filling cylinder internal whorl.Described filling sliding sleeve is provided with 2-8 filling mouth, and this filling mouth is circular configuration, is circumferentially uniformly distributed along filling cylinder.Described filling sliding sleeve is the bayonet type structure that prevents that the later stage from opening by mistake.
The utility model has the following advantages compared with prior art:
1, really realize tube exterior subsection, make horizontal segment, particularly long horizontal sections well all obtains frac-pack transformation
2, sealing is reliable, and can make any one deck filling time, fill liquid can not gone here and there layer.Backwash liquid, without leakage, reduces the risk of sand card tubing string.
3,, when filling sliding sleeve has successfully solved horizontal well sand off, the problem of sand is told on anti-flushing well stratum.Once set up when backwash passage, because stratum and oil jacket annular space exist pressure reduction, can first pressure reduction sliding sleeve be closed, in the time of anti-flushing well, well-flushing passage is not communicated with stratum.The accident of sand card tubing string can be effectively prevented, also the activity duration can be saved.
4, can realize selective filling, available one section of blind layer as long in oil reservoir spacing separates, and in the time of filling, filling service aid can be by directly filling bottom oil reservoir of this layer.
5, realize accurate sand control, avoid pressing off water layer.
6, this invention can be horizontal well later stage selective completion wellbore conditions is provided, and the later stage can be realized the selective stimulations such as segmentation control water, subsection acidizing, piecewise uniform gas injection.
7, present being honored as a queen of all packers all can be realized the envelope program of testing, and ensures filling reliability.
8, filling sliding sleeve can be tested sliding sleeve operation after closing, and filling sliding sleeve is with locking device.Sliding sleeve can not opened by other instruments after closing by mistake.
9, this invention is specially adapted to heavy oil exploitation via steam injection block, can realize individual well SAGD exploitation.
Brief description of the drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model;
Fig. 2 is by the A structural representation shown in Fig. 1:
Fig. 3 is by the filling shift sleeve structure schematic diagram shown in Fig. 2;
Fig. 4 a is by the filling service tube-column superstructure schematic diagram shown in Fig. 1;
Fig. 4 b is by the filling service tube-column substructure schematic diagram shown in Fig. 1;
Fig. 5 is by the local structure for amplifying schematic diagram in the B place shown in Fig. 1.
Detailed description of the invention
Consult Fig. 1-Fig. 5, a kind of horizontal well tube exterior subsection pressure crack filling anti-sand tubing string, comprises that tube exterior subsection pressure crack filling anti-sand stays well casing post and filling service tube-column, and filling service tube-column pipe 8 is lowered to tube exterior subsection pressure crack filling anti-sand and stays in well casing post.Manage outer pressure crack filling anti-sand and stay well casing post, comprise protective casing 1 and on connected cementing well stage collar 2, well cementing pipe external packer 3, packing tool assembly 4, screen casing 6 and guide shoe 5 in turn.Filling service tube-column 8, comprise every sealing device 10 and its underpart the filling pipe 11 of connection is installed in turn, every liquid pipe 12, filling conversion equipment 13, flexible pressure tester 14, rotation orientation tool 15, sliding bush closing tool 16, sliding sleeve switch instrument 17, isolating seal assembly 18, filling pipe 11 and upper end every liquid pipe 12 are connected with every sealing device 10 is parallel, lower end is parallel to be connected with filling conversion equipment 13 is parallel, filling pipe 11 and be provided with liquid stream annular space between liquid pipe 12, and is connected every the liquid head piece on sealing device 10 tops; Packing tool assembly 4 comprise top seal cylinder 41 and on the filling pipe external packer 42, filling sliding sleeve 43, lower seal cylinder 44 and the location box cupling 45 that connect are installed in turn.
Packing tool assembly 4 is at least provided with one-level, is expressed as 3 grades in figure.Filling sliding sleeve 43 comprises the top extension 431 being connected with top seal cylinder 41, extension 431 bottoms in top are connected with filling cylinder 435, sealing drum 436, variable buckle box cupling 437 in turn, machinery sliding sleeve 433 is arranged on filling cylinder 435 inside and is free to slide, pressure reduction sliding sleeve 434 is installed on filling cylinder 435 inside, spacing by keyway.Stop collar 432 is connected with filling cylinder 435 internal whorls.Filling sliding sleeve 43 is provided with 2-8 filling mouth, and this filling mouth is circular configuration, is circumferentially uniformly distributed along filling cylinder 435.Filling sliding sleeve 43 is for prevent the bayonet type structure that the later stage opens by mistake.Location box cupling 45 and rotation orientation tool 15 joints are provided with the locating surface 9 of inclination 40o-50o, are expressed as 45o in figure.
Claims (6)
1. a horizontal well tube exterior subsection fracturing sand control tubing string, comprise that tube exterior subsection pressure crack filling anti-sand stays well casing post and filling service tube-column, filling service tube-column pipe is lowered to tube exterior subsection pressure crack filling anti-sand and stays in well casing post, it is characterized in that the outer pressure crack filling anti-sand of described pipe stays well casing post, comprise protective casing and on connected cementing well stage collar, well cementing pipe external packer, packing tool assembly, screen casing and guide shoe in turn; Described filling service tube-column, comprise every sealing device and its underpart the filling pipe of connection is installed in turn, every liquid pipe, filling conversion equipment, flexible pressure tester, rotation orientation tool, sliding bush closing tool, sliding sleeve switch instrument, isolating seal assembly, filling pipe and upper end every liquid pipe are connected with every sealing device is parallel, lower end is parallel to be connected with filling conversion equipment is parallel, filling pipe and be provided with liquid stream annular space between liquid pipe, is connected with the liquid head piece every sealing device top; Described packing tool assembly comprise top seal cylinder and on the filling pipe external packer, filling sliding sleeve, lower seal cylinder and the location box cupling that connect are installed in turn.
2. horizontal well tube exterior subsection fracturing sand control tubing string according to claim 1, is characterized in that described packing tool assembly is at least provided with one-level.
3. horizontal well tube exterior subsection fracturing sand control tubing string according to claim 1, it is characterized in that described filling sliding sleeve, comprise the top extension being connected with top seal cylinder, extension bottom, top is connected with filling cylinder, sealing drum, variable buckle box cupling in turn, machinery sliding sleeve is arranged on filling cylinder inside and is free to slide, pressure reduction sliding sleeve is installed on filling cylinder inside, spacing by keyway, and stop collar is connected with filling cylinder internal whorl.
4. according to the horizontal well tube exterior subsection fracturing sand control tubing string described in claim 1 or 3, it is characterized in that described filling sliding sleeve is provided with 2-8 filling mouth, this filling mouth is circular configuration, is circumferentially uniformly distributed along filling cylinder.
5. according to the horizontal well tube exterior subsection fracturing sand control tubing string described in claim 1 or 3, it is characterized in that described filling sliding sleeve is the bayonet type structure that prevents that the later stage from opening by mistake.
6. horizontal well tube exterior subsection fracturing sand control tubing string according to claim 1, is characterized in that described location box cupling (45) and rotation orientation tool (15) joint are provided with the locating surface of inclination 40o-50o.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014319.5U CN203702110U (en) | 2014-01-10 | 2014-01-10 | Horizontal well out-pipe staged fracturing sand prevention pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014319.5U CN203702110U (en) | 2014-01-10 | 2014-01-10 | Horizontal well out-pipe staged fracturing sand prevention pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702110U true CN203702110U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420014319.5U Expired - Fee Related CN203702110U (en) | 2014-01-10 | 2014-01-10 | Horizontal well out-pipe staged fracturing sand prevention pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702110U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107524427A (en) * | 2015-05-14 | 2017-12-29 | 胜利油田康贝石油工程装备有限公司 | A kind of oilfield horizontal well pipe construction method |
| CN109162665A (en) * | 2018-07-12 | 2019-01-08 | 马弘毅 | A kind of sidetracked hole layer and section cementing unit |
| CN110017121A (en) * | 2019-04-17 | 2019-07-16 | 中国海洋石油集团有限公司 | A kind of large span perforated interval single multilayer gravel pack tools |
| CN110080727A (en) * | 2019-04-17 | 2019-08-02 | 中国海洋石油集团有限公司 | A kind of large span perforated interval single multilayer gravel packing operations 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 |
-
2014
- 2014-01-10 CN CN201420014319.5U patent/CN203702110U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524427A (en) * | 2015-05-14 | 2017-12-29 | 胜利油田康贝石油工程装备有限公司 | A kind of oilfield horizontal well pipe construction method |
| CN107524427B (en) * | 2015-05-14 | 2019-05-10 | 胜利油田康贝石油工程装备有限公司 | A kind of oilfield horizontal well pipe construction method |
| 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 |
| CN109162665A (en) * | 2018-07-12 | 2019-01-08 | 马弘毅 | A kind of sidetracked hole layer and section cementing unit |
| CN110017121A (en) * | 2019-04-17 | 2019-07-16 | 中国海洋石油集团有限公司 | A kind of large span perforated interval single multilayer gravel pack tools |
| CN110080727A (en) * | 2019-04-17 | 2019-08-02 | 中国海洋石油集团有限公司 | A kind of large span perforated interval single multilayer gravel packing operations method |
| CN110080727B (en) * | 2019-04-17 | 2021-08-31 | 中国海洋石油集团有限公司 | One-time multilayer gravel packing operation method for large-span perforation section |
| CN110017121B (en) * | 2019-04-17 | 2021-10-19 | 中国海洋石油集团有限公司 | Primary multilayer gravel packing tool for large-span perforation section |
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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: 20140709 Termination date: 20180110 |