CN104100234B - Staged simultaneous sampling and water exploration pipe column for multi-stage fractured horizontal well and working method of staged simultaneous sampling and water exploration pipe column - Google Patents
Staged simultaneous sampling and water exploration pipe column for multi-stage fractured horizontal well and working method of staged simultaneous sampling and water exploration pipe column Download PDFInfo
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- CN104100234B CN104100234B CN201310114069.2A CN201310114069A CN104100234B CN 104100234 B CN104100234 B CN 104100234B CN 201310114069 A CN201310114069 A CN 201310114069A CN 104100234 B CN104100234 B CN 104100234B
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- 238000005070 sampling Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000011218 segmentation Effects 0.000 claims abstract description 18
- 239000003129 oil well Substances 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 9
- 238000003556 assay Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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Abstract
The invention discloses a staged simultaneous sampling and water finding tubular column for a multi-section fractured horizontal well and a working method thereof, which are designed for realizing staged simultaneous rapid sampling and water finding of each interval of a tubular column horizontal well. The pipe column is arranged between the plug and the oil well pump, and is connected with a connecting unit consisting of a plurality of stages of underground sampling switch devices and packers through oil pipes, and each stage of underground sampling switch device and each packer correspond to one layer section. The top-most underground sampling switch device is connected with an oil pump through an oil pipe, the upper end of the oil pump is connected with a sucker rod arranged in the oil pipe, the oil pipe is connected to a well head, and the sucker rod is connected with a ground pumping unit. This tubular column adopts multistage sampling switch ware in the pit, can realize the segmentation of one string multilayer section and take a sample the water exploration test simultaneously, produces the water exploration one by one with original each layer section and changes into the while and take a sample the water exploration, can shorten water exploration test cycle by a wide margin, and it is high to make clear out the water layer section, improves water exploration efficiency, provides reliable foundation for the accuse water of horizontal well increases oil measure.
Description
Technical field
The present invention relates to a kind of multistage pressure break horizontal well in segments and sample searching pipe column and work thereof simultaneously
Make method, belong to oil extraction in oil field technical field.
Background technology
At present, domestic each elephant is to improve reservoir development degree, to improve recovery ratio, raising
Well yield and reduction cost of winning are core, carry forward vigorously horizontal wells Technology.
Owing to the well track of horizontal well is complicated and changeable with flooding pattern, each oil reservoir lithology, physical property and
Properties of fluid in bearing stratum is different so that the water absorbing capacity of each interval, water-front advance velocity and production fluid
Situations etc. there are differences, and causes indivedual interval water breakthrough early, and water bearing bed position and direction are indefinite,
Each layer production capacity and pressure condition are unclear.At present, horizontal well water exploration technology is the most immature, special
Be not the water detection technology of low liquid measure horizontal well of low-permeability oil deposit also in the exploratory development stage,
On-the-spot dynamically regulating measures is caused without specific aim, to have a strong impact on horizontal well development effect.Existing
Sectionalized water-exploration testing pipe column of casing well-completion horizontal well use intelligent switch device each interval is carried out
Timing controlled, produces each interval one by one, aqueous by each section of ground assay, it is judged that
Water layer section, every section will independently produce 10 days, and the water detection cycle is oversize, has a strong impact on on-the-spot raw
Product progress, is not suitable with the water detection demand of many bunches of long horizontal sections horizontal wells of segmentation.
Summary of the invention
It is an object of the invention to provide a kind of multistage pressure break horizontal well in segments and sample water detection simultaneously
Tubing string and method of work thereof, it can realize each interval segmentation of one-trip string horizontal well and sample simultaneously
And quickly water detection, the water-control oil-increasing measure for horizontal well provides reliable basis.
The concrete technology contents of the present invention is as follows:
Multistage pressure break horizontal well in segments samples searching pipe column simultaneously:
This tubing string, between plug and oil well pump, is connected by oil pipe and multistage opens with well sampling
Closing device and the connection unit of packer composition, the well sampling derailing switch of every grade and packer are each
A corresponding interval.The most top well sampling derailing switch upper end connects oil well pump by oil pipe,
Oil well pump upper end connects the sucker rod being located in oil pipe, and oil pipe is connected to well head, and sucker rod is even
Ground plane oil pumper.
Multistage pressure break horizontal well in segments samples the method for work of searching pipe column simultaneously:
First, by design, set down-holes at different levels with natural law for unit of time on ground and take
Sample derailing switch simultaneously closes off the acquisition time of sampling, then by water detection kit according to " segmentation
Sample searching pipe column simultaneously " catenation principle connect.Then, by tubing string down to pre-determined bit
Putting, each interval sealed card is opened by packers at different levels, and ground oil pumper produces continuously.Treat early stage
In pit shaft after process fluid emptying, well sampling derailing switches at different levels timing is closed, and carries out each layer
Duan Liuti produces simultaneously and reaches steady statue, and then segmentation samples simultaneously.After having sampled,
Upper lift pipe string, collects each layer fluid in well sampling derailing switch at different levels.By assay,
Obtain each section of aqueous data, be accurately judged to water layer section.
Compared with the prior art the present invention has the advantage that
This tubing string uses multi-level downhole sampling switch device, can realize dividing of one-trip string multi-section multi-layer
The section test of sampling water detection simultaneously, produces original each interval water detection one by one and is changed into and gives birth to simultaneously
Produce sampling water detection, can significantly shorten water detection test period, specify water exit interval, improve water detection
Testing efficiency is high, and the water-control oil-increasing measure for horizontal well provides reliable foundation.
Accompanying drawing explanation
Fig. 1 is that multistage pressure break horizontal well in segments samples searching pipe column schematic diagram simultaneously.
Detailed description of the invention
Embodiment:
With reference to Fig. 1, embodiments of the invention are further illustrated:
As a example by the frac water horizontal well of five pay intervals samples searching pipe column simultaneously:
Plug 1 upper end of this tubing string connects I grade of well sampling derailing switch 3 by oil pipe 2,
I grade of well sampling derailing switch 3 upper end connects I grade of packer 4, I grade of packing by oil pipe 2
Device 4 upper end connects II grade of well sampling derailing switch 5, II grade of well sampling switch by oil pipe 2
Device 5 upper end connects II grade of packer 6 by oil pipe 2, and oil pipe is passed through in II grade of packer 6 upper end
2 connect III grade of well sampling derailing switch 7, and oil pipe is passed through in III grade of well sampling derailing switch 7 upper end
2 connect III grade of packer 8, and III grade of packer 8 upper end connects IV grade of down-hole by oil pipe 2 and take
Sample derailing switch 9, IV grade of well sampling derailing switch 9 connects IV grade of packer 10 by oil pipe 2,
IV grade of packer 10 upper end connects V grade of well sampling derailing switch 11, V grade of well by oil pipe 2
Lower sampling switch device 11 upper end is connected by oil pipe 2 passes a bridge or the oil well pump 12 of rod-type, oil pumping
Pump 12 upper end connected pipes 2 and the sucker rod 13 being located in oil pipe 2, oil pipe 2 is connected to well
Mouthful, sucker rod 13 connects ground oil pumper 14.The well sampling derailing switch of this tubing string Pyatyi and
The most corresponding five intervals of packer.
Groundwater prospecting method is sampled as follows while this tubing string:
First, by design, set down-holes at different levels with natural law for unit of time on ground and take
Sample derailing switch simultaneously closes off the acquisition time of sampling, then by water detection kit according to " segmentation
Sample searching pipe column simultaneously " catenation principle connect.Then, by tubing string down to pre-determined bit
Putting, each interval sealed card is opened by packers at different levels, and ground oil pumper produces continuously.Treat early stage
In pit shaft after process fluid emptying, well sampling derailing switches at different levels timing is closed, and carries out each layer
Duan Liuti produces simultaneously and reaches steady statue, and then segmentation samples simultaneously.After having sampled,
Upper lift pipe string, collects each layer fluid in well sampling derailing switch at different levels.By assay,
Obtain each section of aqueous data, be accurately judged to water layer section.
As a example by the experimental data of 5 sections of level of production wells flatly, use prior art tubing string,
Early stage discharge opeing 10 days, each interval independently produces 10 days, 5 sections 50 days, needs 60 altogether
My god.And the technique early stage discharge opeing of this tubing string 10 days, each interval produces segmentation after 6 days the most simultaneously
Sample simultaneously, amount to and need 16 days.
Claims (3)
1. multistage pressure break horizontal well in segments samples a method of work for searching pipe column simultaneously, and its feature exists
In:
First, by design, set well samplings at different levels switch with natural law for unit of time on ground
Device simultaneously closes off the acquisition time of sampling, then segmentation samples searching pipe column simultaneously connects；Then,
Segmentation sampling searching pipe column simultaneously down to precalculated position, each interval sealed card is opened by packers at different levels,
Ground oil pumper produces continuously；After process fluid emptying in early stage pit shaft, well samplings at different levels switch
Device timing is closed, and carries out each interval fluid and produces simultaneously and reach steady statue, and then segmentation samples simultaneously；
After having sampled, above play segmentation and sample searching pipe column simultaneously, collect in well sampling derailing switch at different levels
Each interval fluid；By assay, obtain each section of aqueous data, be accurately judged to water layer section；
Sample between the plug (1) of searching pipe column and oil well pump (12) in segmentation, by oil pipe (2) even simultaneously
Connect the multistage connection unit formed with well sampling derailing switch and packer, the well sampling switch of every grade
Device and each corresponding interval of packer；The most top well sampling derailing switch upper end is by oil pipe (2) even
Connecing oil well pump (12), oil well pump (12) upper end connects the sucker rod (13) being located in oil pipe (2), oil pipe (2)
Being connected to well head, sucker rod (13) connects ground oil pumper (14).
The most according to claim 1, multistage pressure break horizontal well in segments samples the work of searching pipe column simultaneously
Method, it is characterised in that:
Segmentation samples plug (1) upper end of searching pipe column simultaneously and connects I grade of well sampling by oil pipe (2)
Derailing switch (3), I grade of well sampling derailing switch (3) upper end connects I grade of packer (4) by oil pipe (2),
I grade of packer (4) upper end connects II grade of well sampling derailing switch (5) by oil pipe (2), and II grade of down-hole takes
Sample derailing switch (5) upper end connects II grade of packer (6) by oil pipe (2), and II grade of packer (6) upper end is passed through
Oil pipe (2) connects III grade of well sampling derailing switch (7), and III grade of well sampling derailing switch (7) upper end is by oil
Pipe (2) connects III grade of packer (8), and III grade of packer (8) upper end connects IV grade of down-hole by oil pipe (2) and take
Sample derailing switch (9), IV grade of well sampling derailing switch (9) connects IV grade of packer (10) by oil pipe (2), and IV
Level packer (10) upper end connects V grade of well sampling derailing switch (11) by oil pipe (2), and V grade of down-hole takes
Sample derailing switch (11) upper end is connected by oil pipe (2) passes a bridge or the oil well pump (12) of rod-type, oil well pump (12)
Upper end connected pipes (2) and the sucker rod (13) being located in oil pipe (2), oil pipe (2) is connected to well head, oil pumping
Bar (13) connects ground oil pumper (14)；
Segmentation samples the oil well pump (12) of searching pipe column simultaneously and sucker rod (13) is positioned at down-hole vertical section,
Segmentation samples the plug (1) of searching pipe column simultaneously and is positioned at down-hole horizontal to V grade of well sampling derailing switch (11)
In section, segmentation samples Pyatyi well sampling derailing switch and the most corresponding five of the packer of searching pipe column simultaneously
Interval.
The most according to claim 1, multistage pressure break horizontal well in segments samples the work of searching pipe column simultaneously
Method, it is characterised in that: 5 sections of level of production wells carry out technique early stage discharge opeing 10 days, and each interval is simultaneously
Reproduction reaches steady statue in 6 days, and then segmentation samples simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114069.2A CN104100234B (en) | 2013-04-03 | 2013-04-03 | Staged simultaneous sampling and water exploration pipe column for multi-stage fractured horizontal well and working method of staged simultaneous sampling and water exploration pipe column |
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| CN201310114069.2A CN104100234B (en) | 2013-04-03 | 2013-04-03 | Staged simultaneous sampling and water exploration pipe column for multi-stage fractured horizontal well and working method of staged simultaneous sampling and water exploration pipe column |
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| CN104100234B true CN104100234B (en) | 2016-12-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104481527B (en) * | 2014-12-05 | 2017-11-07 | 中国石油天然气股份有限公司 | Horizontal well underground sectional sampling control method |
| CN105178947B (en) * | 2015-09-18 | 2018-04-03 | 中国石油天然气股份有限公司 | Horizontal well water finding and plugging integrated method |
| CN114059958B (en) * | 2021-12-02 | 2023-05-23 | 西南石油大学 | Method for determining performance parameters of non-directional intelligent plugging system of suture net system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490494A (en) * | 2003-09-19 | 2004-04-21 | 吴孝喜 | Cavity water sampling and generating method for oil well in production |
| CN102108861A (en) * | 2011-03-16 | 2011-06-29 | 中国科学院武汉岩土力学研究所 | Underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device |
| CN102747967A (en) * | 2012-07-10 | 2012-10-24 | 中国石油天然气股份有限公司 | Multi-stage segmented release water exploration pipe column and method for casing completion multi-stage fractured horizontal well |
| CN202596684U (en) * | 2012-06-08 | 2012-12-12 | 中国石油天然气股份有限公司 | Multi-stage segmented yield-seeking and water-finding testing process pipe column for casing well completion horizontal well |
| CN203230415U (en) * | 2013-04-03 | 2013-10-09 | 中国石油天然气股份有限公司 | Staged simultaneous sampling water exploration pipe column for multi-stage fractured horizontal well |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070236215A1 (en) * | 2006-02-01 | 2007-10-11 | Schlumberger Technology Corporation | System and Method for Obtaining Well Fluid Samples |
| US20090288824A1 (en) * | 2007-06-11 | 2009-11-26 | Halliburton Energy Services, Inc. | Multi-zone formation fluid evaluation system and method for use of same |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490494A (en) * | 2003-09-19 | 2004-04-21 | 吴孝喜 | Cavity water sampling and generating method for oil well in production |
| CN102108861A (en) * | 2011-03-16 | 2011-06-29 | 中国科学院武汉岩土力学研究所 | Underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device |
| CN202596684U (en) * | 2012-06-08 | 2012-12-12 | 中国石油天然气股份有限公司 | Multi-stage segmented yield-seeking and water-finding testing process pipe column for casing well completion horizontal well |
| CN102747967A (en) * | 2012-07-10 | 2012-10-24 | 中国石油天然气股份有限公司 | Multi-stage segmented release water exploration pipe column and method for casing completion multi-stage fractured horizontal well |
| CN203230415U (en) * | 2013-04-03 | 2013-10-09 | 中国石油天然气股份有限公司 | Staged simultaneous sampling water exploration pipe column for multi-stage fractured horizontal well |
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