CN101560877A - Horizontal well packer staged fracturing technology tube pillar - Google Patents
Horizontal well packer staged fracturing technology tube pillar Download PDFInfo
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- CN101560877A CN101560877A CNA2008102498891A CN200810249889A CN101560877A CN 101560877 A CN101560877 A CN 101560877A CN A2008102498891 A CNA2008102498891 A CN A2008102498891A CN 200810249889 A CN200810249889 A CN 200810249889A CN 101560877 A CN101560877 A CN 101560877A
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- horizontal well
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Abstract
A horizontal well packer staged fracturing technology tube pillar comprises an oil string, a hydraulic anchor, a seat sealing controller, a straddle packer A, a straddle packer B, a straddle packer C, a sliding bush sand spraying device, a sand spraying device, a guider, and a capillary tube line; wherein the oil string is installed and connected with the hydraulic anchor, a seat sealing controller, the straddle packer A, the sliding bush sand spraying device, the straddle packer B, the sand spraying device, the straddle packer C and the guider; the capillary tube line is connected with the seat sealing controller, the straddle packer A, the straddle packer B, the straddle packer C at one side of the oil string. In the situation of the immovability of the tube pillar, the tube pillar is characterized by realizing the pressing parting technology of the two to three layer by bowling, high construction safe reliability, strong operability, simple working procedure, simple implementation and the like and is widely applied in the petroleum oil production technology.
Description
One, technical field
The present invention relates to oil exploitation well fracturing reform process pipe string, particularly a kind of horizontal well packer staged fracturing technology tube pillar.
Two, background technology
The staged fracturing of oil exploitation horizontal well is handled, be generally the mechanical type staged fracturing, this pressure break mode contributes for improving reservoir permeability and increasing the injection rate of exploiting well yield and injecting well, but it also exists following shortcoming or deficiency simultaneously: (1) is by the mandatory section construction of pressure break packer, after pressure break is finished an interval, the upper lifting pipe post carries out the pressing crack construction of next interval, causes the intact back of pressure break packer to be difficult to deblocking so first; (2) since upper lifting pipe post packer sustain damage, poorly sealed, cause pressure break to lose efficacy; (3) the intact back of pressure break strata pressure is higher, easily causes blowout during the upper lifting pipe post, leads to a disaster; (4) this method operability is poor, and technology is loaded down with trivial details, and carry tubing string at every turn and need dismounting well head and pressure break pipeline, the program complexity, labor intensity of operating staff is big, poor stability.
Three, summary of the invention
The purpose of this invention is to provide a kind of horizontal well packer staged fracturing technology tube pillar, adopt the combining structures of striding of overlapping every formula packer, sliding sleeve sandblaster and seat envelope controller more, the shortcoming or the deficiency that had both overcome effectively or avoided existing in the above-mentioned prior art can be carried out fracturing work at the horizontal well layer and section again effectively.Horizontal well packer staged fracturing technology tube pillar of the present invention, comprise tubing string, hydraulic anchor, seat envelope controller, stride every formula packer A, stride every formula packer B, stride every formula packer C, the sliding sleeve sandblaster, sandblaster, guider and capillary line, it is characterized in that installing in turn on the described tubing string and be connected with hydraulic anchor, seat envelope controller, stride every formula packer A, the sliding sleeve sandblaster, stride every formula packer B, sandblaster, stride every formula packer C and guider, described capillary line in a side of tubing string with seat envelope controller with stride every formula packer A, stride every formula packer B, stride every formula packer C and be connected.
Wherein, describedly stride every formula packer A, stride every formula packer B, stride every the both ends of formula packer C and be provided with pressure transmission hole and following pressure transmission hole respectively, pressure transmission hole and following pressure transmission hole are connected with capillary line on this.Describedly stride, stride, stride every the middle part of formula packer C high pressure resistant sealing mechanism is installed every formula packer B every formula packer A.Describedly stride, stride, stride every formula packer C, when dividing two sections, prepare three grades at least according to oil reservoir segmentation preparation every formula packer B every formula packer A, level Four in the time of three sections, and the like.Described striding before formula packer A is positioned at two sections in oil reservoir striden every formula packer B between one section in two sections in oil reservoir and oil reservoir, strides every formula packer C after one section in oil reservoir.Described sliding sleeve sandblaster is positioned at oil reservoir to be located for two sections, when oil reservoir divides three sections, strides two of oil layer section and install a sliding sleeve sandblaster additional between the formula packer.Described seat envelope controller is provided with sand block pressure transmission mechanism.Described sand block pressure transmission mechanism comprises that an end of outer cylinder sheath is provided with pressure transmission hole, and the leading section of this pressure transmission hole is provided with considers husky net.
Patent of the present invention has the following advantages compared with prior art:
1, can be implemented under the situation of fixed tubular column, realize that by pitching 2～3 layers the lamination that changes splits technology, and pressure break has been carried out preferably with ball that preferably the steel ball after can be realized the anti-well of discharging;
2, capillary tube and the oil pipe two cover pressure systems of pressure transmission respectively that in tubing string, realized of novelty, the capillary tube pressure transmission guarantees that packer setting is reliable, the oil pipe pressure transmission realizes of the fracturing fluid transmission;
3, packing element is preferred novel high pressure-resistant rubber packing material is realized high pressure resistant poor function, sets controller and has designed sand block pressure transmission mechanism, guarantees that packer can operate as normal.
4, can optimize the tubing string stress, improve the construction safety reliability, and strong operability, operation are simple, it is convenient to implement.
Four, description of drawings
Fig. 1 is a kind of structural representation of the present invention
Fig. 2 is a kind of structural representation by seat envelope controller shown in Figure 1
Fig. 3 is for by a kind of structural representation of striding every formula packer A, B, C shown in Figure 1
Five, the specific embodiment
Consult accompanying drawing 1-Fig. 3, a kind of horizontal well packer staged fracturing technology tube pillar comprises tubing string 2, hydraulic anchor 3, seat envelope controller 4, strides every formula packer A6, strides every formula packer B8, strides every formula packer C10, sliding sleeve sandblaster 7, sandblaster 9, guider 11 and capillary line 5.Install in turn on the tubing string 2 and be connected with hydraulic anchor 3, seat envelope controller 4, stride, stride, stride every formula packer C10 and guider 11 every formula packer B8, sandblaster 9 every formula packer A6, sliding sleeve sandblaster 7.Capillary line 5 a side of tubing string 2 and seat envelope controller 4 with stride every formula packer A6, stride, stride every formula packer C10 and be connected every formula packer B8.
Stride every formula packer A6, stride every formula packer B8, stride every the both ends of formula packer C10 and be provided with pressure transmission hole 61 and following pressure transmission hole 63 respectively, pressure transmission hole 61 and following pressure transmission hole 63 are connected with capillary line 5 on this.State and stride every formula packer A6, stride, stride every the middle part of formula packer C10 high pressure resistant sealing mechanism 62 is installed every formula packer B8.Stride every formula packer A6, stride, stride every formula packer C10 and prepare, when dividing two sections, prepare three grades at least according to the oil reservoir segmentation every formula packer B8, level Four in the time of three sections, and the like, (being expressed as two sections of branches among the figure).Strode before formula packer A6 is positioned at two sections in oil reservoir, stride every formula packer B8 between one section in two sections in oil reservoir and oil reservoir, stride every formula packer C10 after one section in oil reservoir.Sliding sleeve sandblaster 7 is positioned at oil reservoir to be located for two sections, when oil reservoir divides three sections, strides two of oil layer section and install a sliding sleeve sandblaster 7 additional between formula packer A, B.Seat envelope controller 4 is provided with sand block pressure transmission mechanism, and sand block pressure transmission mechanism comprises that an end of outer cylinder sheath 42 is provided with pressure transmission hole 43, and the leading section of this pressure transmission hole is provided with considers husky net 41.
During site operation, when tubing string down to design attitude, for prepad fluid, when prepad fluid arrives pretreated oil reservoir position, improve discharge capacity, set controller 4 and under the effect of chock pressure difference, start, and pressure is passed to 3 by capillary line 5 strides every formula packer A6, stride, stride every formula packer C10 and make it to set, beginning pressure break oil reservoir one every formula packer B8; Treat that oil reservoir one pressure break finishes, drop into minor diameter low-density ball, when ball arrived sliding sleeve sandblaster 7, rising pressure was opened sliding sleeve sandblaster 7, and sealing shroud moves down, and closes the bottom and has pressed off oil reservoir, strengthened pump truck output and began pressure break oil reservoir two.After pressure break was intact, the anti-flushing well deblocking was striden every formula packer A6, strides every formula packer B8, is striden every formula packer C10, trips out fracturing tool, had so just finished fixed tubular column and had realized 2～3 layers separate stratum fracfturing construction.
Claims (8)
1, a kind of horizontal well packer staged fracturing technology tube pillar, comprise tubing string, hydraulic anchor, seat envelope controller, stride every formula packer A, stride every formula packer B, stride every formula packer C, the sliding sleeve sandblaster, sandblaster, guider and capillary line, it is characterized in that installing in turn on the described tubing string and be connected with hydraulic anchor, seat envelope controller, stride every formula packer A, the sliding sleeve sandblaster, stride every formula packer B, sandblaster, stride every formula packer C and guider, described capillary line in a side of tubing string with seat envelope controller with stride every formula packer A, stride every formula packer B, stride every formula packer C and be connected.
2, horizontal well packer staged fracturing technology tube pillar according to claim 1, it is characterized in that describedly striding every formula packer A, stride every formula packer B, stride every the both ends of formula packer C and be provided with pressure transmission hole and following pressure transmission hole respectively, pressure transmission hole and following pressure transmission hole are connected with capillary line on this.
3, horizontal well packer staged fracturing technology tube pillar according to claim 1 is characterized in that describedly striding every formula packer A, strides every formula packer B, strides every the middle part of formula packer C high pressure resistant sealing mechanism is installed.
4, horizontal well packer staged fracturing technology tube pillar according to claim 1 is characterized in that describedly striding every formula packer A, strides every formula packer B, strides every formula packer C in the segmentation of oil reservoir one, oil reservoir two, prepares three grades at least.
5, according to claim 1 or 2 or 3 or 4 described horizontal well packer staged fracturing technology tube pillars, it is characterized in that described striding before formula packer A is positioned at two sections in oil reservoir, stride every formula packer B between one section in two sections in oil reservoir and oil reservoir, stride every formula packer C after one section in oil reservoir.
6, horizontal well packer staged fracturing technology tube pillar according to claim 1 is characterized in that described sliding sleeve sandblaster is positioned at oil reservoir and locates for two sections, when oil reservoir divides three sections, strides two of oil layer section and install a sliding sleeve sandblaster additional between the formula packer.
7, horizontal well packer staged fracturing technology tube pillar according to claim 1 is characterized in that described seat envelope controller is provided with sand block pressure transmission mechanism.
8, according to claim 1 or 7 described horizontal well packer staged fracturing technology tube pillars, it is characterized in that described sand block pressure transmission mechanism comprises that an end of outer cylinder sheath is provided with pressure transmission hole, the leading section of this pressure transmission hole is provided with considers husky net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102498891A CN101560877A (en) | 2008-12-31 | 2008-12-31 | Horizontal well packer staged fracturing technology tube pillar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102498891A CN101560877A (en) | 2008-12-31 | 2008-12-31 | Horizontal well packer staged fracturing technology tube pillar |
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| CN101560877A true CN101560877A (en) | 2009-10-21 |
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| CNA2008102498891A Pending CN101560877A (en) | 2008-12-31 | 2008-12-31 | Horizontal well packer staged fracturing technology tube pillar |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994503A (en) * | 2010-09-17 | 2011-03-30 | 北京奥瑞安能源技术开发有限公司 | Production increasing method of coalbed gas |
| CN102691495A (en) * | 2012-05-18 | 2012-09-26 | 中国石油天然气股份有限公司 | High-broken-pressure stratum horizontal well sectional-fracturing method for well cementation and completion of casing |
| CN101818633B (en) * | 2010-01-18 | 2012-11-14 | 大庆福斯特科技开发有限公司 | Downhole closing well technology of replacing tubing after deep horizontal gas well open hole staged fracturing |
| CN102839920A (en) * | 2012-08-07 | 2012-12-26 | 中国石油化工股份有限公司 | Multi-segment transforming tubular column for horizontal well and use method for same |
| CN102884277A (en) * | 2010-03-01 | 2013-01-16 | 哈里伯顿能源服务公司 | Fracturing a stress-altered subterranean formation |
| CN103015955A (en) * | 2012-12-28 | 2013-04-03 | 中国石油集团渤海钻探工程有限公司 | Open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and fracturing method thereof |
| CN103075138A (en) * | 2013-01-10 | 2013-05-01 | 中国海洋石油总公司 | Staged fracturing and staged oil production integrated string for horizontal well |
| CN103132970A (en) * | 2011-12-05 | 2013-06-05 | 中国石油化工股份有限公司 | Staged fracturing oil tube system and application method thereof |
| CN106481326A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | The no chock pressure difference fracturing strings of self controllable supercharging |
| CN106812507A (en) * | 2015-11-30 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| US9708889B2 (en) | 2011-06-22 | 2017-07-18 | China Petroleum & Chemical Corporation | Sleeve fracturing assembly, device using the same and method for using the same |
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2008
- 2008-12-31 CN CNA2008102498891A patent/CN101560877A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818633B (en) * | 2010-01-18 | 2012-11-14 | 大庆福斯特科技开发有限公司 | Downhole closing well technology of replacing tubing after deep horizontal gas well open hole staged fracturing |
| CN102884277A (en) * | 2010-03-01 | 2013-01-16 | 哈里伯顿能源服务公司 | Fracturing a stress-altered subterranean formation |
| CN102884277B (en) * | 2010-03-01 | 2016-03-09 | 哈里伯顿能源服务公司 | The method of pressure break subsurface formations and the system for pressure break subsurface formations |
| CN101994503A (en) * | 2010-09-17 | 2011-03-30 | 北京奥瑞安能源技术开发有限公司 | Production increasing method of coalbed gas |
| US10450837B2 (en) | 2011-06-22 | 2019-10-22 | China Petroleum & Chemical Corporation | Sleeve fracturing assembly, device using the same and method for using the same |
| US9708889B2 (en) | 2011-06-22 | 2017-07-18 | China Petroleum & Chemical Corporation | Sleeve fracturing assembly, device using the same and method for using the same |
| CN103132970B (en) * | 2011-12-05 | 2016-01-06 | 中国石油化工股份有限公司 | Staged fracturing tubing system and using method thereof |
| CN103132970A (en) * | 2011-12-05 | 2013-06-05 | 中国石油化工股份有限公司 | Staged fracturing oil tube system and application method thereof |
| CN102691495A (en) * | 2012-05-18 | 2012-09-26 | 中国石油天然气股份有限公司 | High-broken-pressure stratum horizontal well sectional-fracturing method for well cementation and completion of casing |
| CN102839920B (en) * | 2012-08-07 | 2015-04-22 | 中国石油化工股份有限公司 | Multi-segment transforming tubular column for horizontal well and use method for same |
| CN102839920A (en) * | 2012-08-07 | 2012-12-26 | 中国石油化工股份有限公司 | Multi-segment transforming tubular column for horizontal well and use method for same |
| CN103015955B (en) * | 2012-12-28 | 2015-06-24 | 中国石油集团渤海钻探工程有限公司 | Open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and fracturing method thereof |
| CN103015955A (en) * | 2012-12-28 | 2013-04-03 | 中国石油集团渤海钻探工程有限公司 | Open-hole horizontal well multi-cluster sliding sleeve staged fracturing string and fracturing method thereof |
| CN103075138A (en) * | 2013-01-10 | 2013-05-01 | 中国海洋石油总公司 | Staged fracturing and staged oil production integrated string for horizontal well |
| CN106481326A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | The no chock pressure difference fracturing strings of self controllable supercharging |
| CN106812507A (en) * | 2015-11-30 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN106812507B (en) * | 2015-11-30 | 2018-12-28 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
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Application publication date: 20091021 |