CN204082116U - Oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string - Google Patents
Oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string Download PDFInfo
- Publication number
- CN204082116U CN204082116U CN201420483233.7U CN201420483233U CN204082116U CN 204082116 U CN204082116 U CN 204082116U CN 201420483233 U CN201420483233 U CN 201420483233U CN 204082116 U CN204082116 U CN 204082116U
- Authority
- CN
- China
- Prior art keywords
- packer
- oil
- oil pipe
- tubing string
- pipe
- 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.)
- Active
Links
Abstract
The utility model belongs to oil gas field stimulation technology field, be specifically related to a kind of oil well horizontal well oil jacket with note formula two envelope single deck tape-recorder volume fracturing tubing string, comprise oil pipe, the end of oil pipe is connected with packer, ball-and-seat, eye pipe and righting-oriented device in turn, is connected with pilot ejector between packer and oil pipe; Oil pipe is serially connected with the second packer, the 3rd packer and annular space injection valve, described second packer is positioned at above pilot ejector, 3rd packer is positioned at above the second packer, annular space injects valve and to be positioned at above the 3rd packer and adjacent 3rd packer is serially connected on oil pipe, overcome existing two envelope single deck tape-recorder staged fracturing techniques generally and be only applicable to oil pipe injection pressing crack construction, fluid frictional resistance is large, operational discharge capacity is difficult to the problem improved, oil pipe and sleeve pipe injection liquid stream simultaneously, realizes the successively layering volume fracturing construction from bottom to top of oil well horizontal well.
Description
Technical field
The utility model belongs to oil gas field stimulation technology field, is one of fracturing technology tubing string commonly used in the operation of oil gas field reservoir reconstruction, is specifically related to a kind of oil well horizontal well oil jacket with note formula two envelope single deck tape-recorder volume fracturing tubing string.
Background technology
Along with the further exploitation in oil field, horizontal well volume fracturing process as a kind of efficient reforming mode using the major alterations mode as extra-low-permeability reservoir, two envelope single deck tape-recorder staged fracturing technique is the effective technological measure of one of staged fracturing of horizontal well transformation, and this technology is widely used in the old well of each block oil well horizontal well and repeats in transformation operation.
Along with the further exploitation in oil field, " volume fracturing " as a kind of efficient reforming mode using the major alterations mode as extra-low-permeability reservoir.Current two envelope single deck tape-recorder staged fracturing technology tube pillars are made up of instruments such as safety joint, inflatable packer, pressure-guiding sand blower, guiding plugs, it is only applicable to oil pipe and injects pressing crack construction, fluid frictional resistance is large, and operational discharge capacity is difficult to improve, and cannot meet the construction demand of " volume fracturing ".
Utility model content
The purpose of this utility model overcomes existing two envelope single deck tape-recorder staged fracturing techniques to be generally only applicable to oil pipe injection pressing crack construction, and fluid frictional resistance is large, and operational discharge capacity is difficult to the problem improved.
For this reason, the utility model provides a kind of oil well horizontal well oil jacket with note formula two envelope single deck tape-recorder volume fracturing tubing string, comprise oil pipe, the end of oil pipe is connected with packer, ball-and-seat, eye pipe and righting-oriented device in turn, is connected with pilot ejector between packer and oil pipe;
Oil pipe is serially connected with the second packer, the 3rd packer and annular space injection valve, described second packer is positioned at above pilot ejector, 3rd packer is positioned at above the second packer, and annular space injects valve and to be positioned at above the 3rd packer and adjacent 3rd packer is serially connected on oil pipe.
Described 3rd distance between packer and packer is greater than the length needing fractured interval.
Described packer and the second packer are inflatable packer, and the 3rd packer is mechanical packer.
The beneficial effects of the utility model: this oil well horizontal well oil jacket of the present utility model is with note formula two envelope single deck tape-recorder volume fracturing tubing string and fracturing process, the interval of unlatching on target zone with the 3rd packer and the second packer packing, the liquid stream that annular space injects enters in oil pipe in down-hole near construction section position, the oily Bottomhole pressure that mixed liquid stream is shorter in down-hole, construction interval is entered through pressure-guiding sand blower, realize constructing to the volume fracturing of target zone, this repetition volume fracturing rebuilding construction, the oil well horizontal well successively layering volume fracturing construction from bottom to top of having constructed can be realized.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is that the utility model tubing string is at net horizontal section operation structure schematic diagram.
Description of reference numerals: 1, annular space injection valve; 2, the 3rd packer; 3, the second packer; 4, pilot ejector; 5, packer; 6, ball-and-seat; 7, eye pipe; 8, righting-oriented device; 9, oil pipe.
Detailed description of the invention
Embodiment 1:
Be not only applicable to oil pipe in order to two envelope single deck tape-recorder staged fracturing technique can be made and inject pressing crack construction, and oil pipe annular space can be adapted to inject pressure break simultaneously, the utility model provides a kind of oil well horizontal well oil jacket with note formula two envelope single deck tape-recorder volume fracturing tubing string, as shown in Figure 1, comprise oil pipe 9, the end of oil pipe 9 is connected with packer 5, ball-and-seat 6, eye pipe 7 and righting-oriented device 8 in turn, is connected with pilot ejector 4 between packer 5 and oil pipe 9; Described packer 5 and the second packer 3 are inflatable packer, and the 3rd packer 2 is mechanical packer.
Oil pipe 9 is serially connected with the second packer 3, the 3rd packer 2 and annular space injection valve 1, described second packer 3 is positioned at above pilot ejector 4,3rd packer 2 is positioned at above the second packer 3, annular space injection valve 1 is positioned at above the 3rd packer 2 and adjacent 3rd packer 2 is serially connected on oil pipe 9, here so-called " top " is all with the direction of tubing string when vertical state (connecting direction during tubing string), and figure meta is set to operating position.Distance between 3rd packer 2 and packer 5 is greater than the length needing fractured interval.
This tubing string string of the present embodiment, the second packer 3 and between device 5 corresponding bottom be pressure break target zone, fracturing fluid can spray from annular space injection valve 1, then enters bottom by the interface channel of sleeve pipe and carries out fracturing work; After completing, integral tube string moves on carrying out, and continues the pressure break of next position, continuous repeated work process, the stratum that staged fracturing is different from bottom to top.
Embodiment 2:
On the basis of above-described embodiment, utilize above-mentioned tubing string to carry out fracturing work, comprise the steps,
First check the wellbore conditions before construction, this fracturing process that the utility model proposes, be applied to the oil well horizontal well of having constructed, namely the interface channel of all construction intervals and sleeve pipe is opened; If construction well is new well, needs to carry out perforating job, can adopt the mode of conventional tubing transmission that perforating gun is sent into design attitude, disposable perforating job is carried out to all intervals of this well.
Next operation is carried out according to the following step:
1) tubing string and lower brill is connected: the connection carrying out tubing string according to the structure in above-described embodiment, need the length of the interval of pressure break to determine the position of each packer according to Oil/gas Well, the distance between the 3rd packer 2 and packer 5 is made to be greater than the length needing fractured interval, then lower brill, make packer 5 be positioned at the construction layer bottom needing pressure break, be then target zone between packer 5 and the second packer 3;
2) set: the 3rd packer 2 is generally mechanical packer, adopt the mechanical systems such as rotary tools that the 3rd packer 2 is set;
3) pressing crack construction: all simultaneously inject fracturing fluid in rail 9 and annular space, the fracturing fluid that oil jacket annular space injects enters oil pipe 9 near construction section position by annular space injection valve 1 in down-hole, mixed fracturing fluid flows in the oil pipe 9 that down-hole is shorter, fracturing fluid flows out in pilot ejector 4, the official post of generation throttling simultaneously obtains packer 5 and the second packer 3 sets, now fracturing fluid is by the interface channel of construct interval and sleeve pipe, and the bottom entered between packer 5 and the second packer (3) carries out pressing crack construction;
4) drag tubing string: after previous step pressing crack construction completes, drag tubing string up, leave the interval of pressure break, go upward to the interval of the non-pressure break in top;
5) repeat step 2), 3), 4), make tubing string constantly increase, pressure break, from bottom to top, segmentation completes the pressure break of each construction section.
By above fracturing process, inject fracturing fluid while achieving oil pipe and sleeve pipe, operational discharge capacity is high, can realize the construction of top-down successively volume fracturing.
Each assembly in the tubing string related in embodiment is existing structure, all obtaining by buying in the market, not illustrating at this.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (3)
1. an oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string, comprise oil pipe (9), the end of oil pipe (9) is connected with packer (5), ball-and-seat (6), eye pipe (7) and righting-oriented device (8) in turn, it is characterized in that: be connected with pilot ejector (4) between packer (5) and oil pipe (9);
Oil pipe (9) is serially connected with the second packer (3), the 3rd packer (2) and annular space injection valve (1), described second packer (3) is positioned at pilot ejector (4) top, 3rd packer (2) is positioned at the second packer (3) top, and annular space injection valve (1) is positioned at the 3rd packer (2) top and adjacent 3rd packer (2) is serially connected on oil pipe (9).
2. oil well horizontal well oil jacket as claimed in claim 1 is with note formula two envelope single deck tape-recorder volume fracturing tubing string, it is characterized in that: the distance between described 3rd packer (2) and packer (5) is greater than the length needing fractured interval.
3. oil well horizontal well oil jacket as claimed in claim 1 is with note formula two envelope single deck tape-recorder volume fracturing tubing string, and it is characterized in that: described packer (5) and the second packer (3) are inflatable packer, the 3rd packer (2) is mechanical packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483233.7U CN204082116U (en) | 2014-08-26 | 2014-08-26 | Oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483233.7U CN204082116U (en) | 2014-08-26 | 2014-08-26 | Oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082116U true CN204082116U (en) | 2015-01-07 |
Family
ID=52174847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420483233.7U Active CN204082116U (en) | 2014-08-26 | 2014-08-26 | Oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082116U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196512A (en) * | 2014-08-26 | 2014-12-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well horizontal well oil jacket simultaneous injection type double-sealing single-clamping volume fracturing tubular column and fracturing method thereof |
| CN105221094A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Horizontal well two envelope single deck tape-recorder Technics of Prevention of Well Blowout |
| CN105507887A (en) * | 2015-12-31 | 2016-04-20 | 中国石油天然气股份有限公司 | High-water-content horizontal well tracer injection water exploration process and string |
| CN106401551A (en) * | 2016-10-21 | 2017-02-15 | 中国石油大学(北京) | Simulation experiment system for staged fracturing or simultaneous fracturing of horizontal wells |
-
2014
- 2014-08-26 CN CN201420483233.7U patent/CN204082116U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196512A (en) * | 2014-08-26 | 2014-12-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well horizontal well oil jacket simultaneous injection type double-sealing single-clamping volume fracturing tubular column and fracturing method thereof |
| CN104196512B (en) * | 2014-08-26 | 2017-12-26 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well horizontal well oil jacket is the same as the double envelope single deck tape-recorder volume fracturing tubing strings of note formula and fracturing process |
| CN105221094A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Horizontal well two envelope single deck tape-recorder Technics of Prevention of Well Blowout |
| CN105507887A (en) * | 2015-12-31 | 2016-04-20 | 中国石油天然气股份有限公司 | High-water-content horizontal well tracer injection water exploration process and string |
| CN106401551A (en) * | 2016-10-21 | 2017-02-15 | 中国石油大学(北京) | Simulation experiment system for staged fracturing or simultaneous fracturing of horizontal wells |
| CN106401551B (en) * | 2016-10-21 | 2018-03-13 | 中国石油大学(北京) | A kind of staged fracturing of horizontal well or synchronous pressure break experimental system for simulating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104695927B (en) | A kind of coiled tubing and production tube compound tube string pressure break and completion integral method | |
| CN105507865A (en) | Re-fracturing method for oil, gas and water wells | |
| CN204082116U (en) | Oil well horizontal well oil jacket is with note formula two envelope single deck tape-recorder volume fracturing tubing string | |
| CN103184859A (en) | Device and method for exploitation for single-well injection-production | |
| CN103867177A (en) | Horizontal well fracturing method | |
| CN103470242B (en) | A kind of oilfield horizontal well volume fracturing method | |
| CN203394483U (en) | Thin-layer heavy oil plane steam flooding injection and production system | |
| CN104213895A (en) | Hydraulic sand jet perforation, fracture and sand filling integrated technological method | |
| CN103912257B (en) | A kind of dragging multiple fracturing device with pressure | |
| CN107269255A (en) | A kind of method and device that fine and close oil is exploited by the displacement of reservoir oil between cluster | |
| CN102877824A (en) | Horizontal well staged and multi-cluster fracturing method by hydraulic jetting | |
| CN102900406A (en) | Pressure-pulse oil well production-increasing device and application method thereof | |
| CN104196492B (en) | A kind of dragging down-hole plugging valve with pressure | |
| CN203239303U (en) | Extraction device used for injection and extraction of same well | |
| CN104563997A (en) | Water-jet and bridge plug combined process tubing string and work thereof | |
| CN104196512B (en) | Oil well horizontal well oil jacket is the same as the double envelope single deck tape-recorder volume fracturing tubing strings of note formula and fracturing process | |
| CN205370460U (en) | Sandblast perforation allies oneself with with bridging plug makes tubular column that carries out staged fracturing | |
| CN202645526U (en) | Jet flow sand blasting cracking device | |
| CN204041042U (en) | A kind of coiled tubing drag fracturing tubing string | |
| CN203394491U (en) | Integrated perforating and fracturing tubing string for selective and repetitive reconstruction of old well in oil field | |
| CN208456570U (en) | A kind of extracting device of oil | |
| CN203879478U (en) | Hydraulic sandblasting volume fracturing pipe column | |
| RU131075U1 (en) | INSTALLATION FOR SIMULTANEOUS SEPARATE PRODUCTION AND PUMPING IN ONE WELL | |
| CN205297515U (en) | Coiled tubing drags hydraulic jet fracturing device | |
| CN204703878U (en) | A kind of high injection allocation water gaging horizontal well two sections of subsection water injection tubing strings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |