CN203452662U - Horizontal well subsection setting type wellhead flow method water exploration pipe column - Google Patents
Horizontal well subsection setting type wellhead flow method water exploration pipe column Download PDFInfo
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- CN203452662U CN203452662U CN201320538167.4U CN201320538167U CN203452662U CN 203452662 U CN203452662 U CN 203452662U CN 201320538167 U CN201320538167 U CN 201320538167U CN 203452662 U CN203452662 U CN 203452662U
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- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 36
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000011218 segmentation Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 235000020681 well water Nutrition 0.000 abstract 1
- 239000002349 well water Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The utility model discloses a horizontal well segmentation setting formula well head flow method water exploration tubular column provides reliable foundation and design for the accuse water oil gain measure of horizontal well. The horizontal section of the water exploration pipe column in the well is connected with a guide plug, a tail pipe, a K344 hydraulic packer and an oil pipe from a toe part to a heel part, the oil pipe is connected with an oil pipe cock at a well head, and a well head sleeve is communicated with a ground single-quantity device. The water finding pipe column carries out water finding through the processes of running in a construction process pipe column, producing a combined layer, setting a setting device, finding water in sections and pulling out the process pipe column. The water finding pipe column determines a water outlet layer section according to the wellhead water production quantity and the water containing change condition, if the wellhead water production quantity suddenly drops or water does not flow out, the water outlet layer section is found, and if the wellhead water production quantity is unchanged, a water outlet point is indicated to be above the perforation section. The water exploration pipe column can realize high-water-content self-spraying (casing-returning) horizontal well water exploration test, and has the advantages of simple construction process, rapid water exploration and short water exploration period.
Description
Technical field
The utility model relates to a kind of horizontal well in segments setting type well head discharge method searching pipe column, belongs to oil extraction in oil field technical field.
Background technology
At present, sectionalized water-exploration testing pipe column of casing well-completion horizontal well adopts each interval of intelligent switch device timing controlled to produce, by ground chemically examine and analyze each section moisture, judge water layer.Each interval of this technique is separated by cup packer or Y441 packer.Yet because the high aqueous level well of part is often linked up with corresponding water injection well channelling, high aqueous level well well head blowing (cover returns), cannot be lowered to cup packer, Y441 Bidirectional anchor packer horizontal segment deblocking difficulty, and complicated construction technique.
Summary of the invention
The purpose of this utility model is to provide a kind of horizontal well in segments setting type well head discharge method searching pipe column and groundwater prospecting method thereof, for the water-control oil-increasing measure of horizontal well provides reliable foundation.
Concrete technology contents of the present utility model is as follows:
This searching pipe column is connected with guiding plug, tail pipe, K344 hydraulic packer and oil pipe in down-hole horizontal section from toe to heel, and oil pipe is in the cock of well head connected pipes, and wellhead casing pipe is connected ground single amount device.
The utility model can be realized high moisture blowing (cover returns) horizontal well test water detection, and construction technology is simple, and water detection is rapid, and the water detection cycle is short.
Accompanying drawing explanation
Fig. 1 is horizontal well in segments setting type well head discharge method searching pipe column structural representation.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This searching pipe column is connected with guiding plug 1, tail pipe 2, K344 hydraulic packer 3 and oil pipe 4 in down-hole horizontal section from toe to heel, and oil pipe 4 is in well head connected pipes cock 5, and wellhead casing pipe is connected ground single amount device 6.
The concrete steps of this searching pipe column water detection are as follows:
1) be lowered to construction technology tubing string: combine G.I.H after this searching pipe column, close oil pipe cock 5, to precalculated position, card is enclosed between first paragraph and second segment by K344 packer 3 times, to guarantee that returning fluid flows out from sleeve pipe.
2) closing layer produces: continue to keep oil pipe cock 5 to close, annular space connects production procedure, produces 2-3 days, and admission production fluid amount, moisture and saliferous etc. are produced dynamic data, to analyze with later stage water detection dynamic contrast under same production procedure.
3) set: close and adopt after end, open oil pipe cock 5, with cementing truck, to the interior water filling of oil pipe 4, pressurize; slowly rise and press, while reaching 5MPa, voltage stabilizing is 5 minutes; When pressure reaches 10MPa, voltage stabilizing is 5 minutes, has set.Close oil pipe cock 5, voltage stabilizing, observes oil pipe 4 pressure condition, keeps oil pipe 4 pressure can not be lower than 8MPa simultaneously, sets the sleeve pipe maximum pressure of pressure will be according to wellhead shut-in time and determines.
4) segmentation water detection: oil jacket annular space is connected and is produced with ground single amount device 6, and admission production fluid amount, moisture and saliferous data, with ecological dynamic contrast analysis before water detection, judge whether the following perforated interval of K344 packer 3 is water exit interval.If well head aquifer yield bust or not water outlet, show that this perforated interval is water exit interval, water detection finishes; If well head aquifer yield cannot change, indicate that water spot is on this perforated interval.Open oil pipe cock 5, pressure release deblocking K344 packer 3, the supreme perforated interval top of upper lifting pipe post, sets K344 packer 3 again, carries out annular space production, until well head aquifer yield bust or not water outlet, find out water exit interval.
5) trip out searching pipe column: trip out test string, open oil pipe cock 5, oil pipe 4 pressure releases, deblocking K344 packing 3, upper lifting pipe post.
Claims (1)
1. a horizontal well in segments setting type well head discharge method searching pipe column, is characterized in that:
This searching pipe column is connected with guiding plug (1), tail pipe (2), K344 hydraulic packer (3) and oil pipe (4) in down-hole horizontal section from toe to heel, oil pipe (4) is in well head connected pipes cock (5), and wellhead casing pipe is connected ground single amount device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538167.4U CN203452662U (en) | 2013-08-30 | 2013-08-30 | Horizontal well subsection setting type wellhead flow method water exploration pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538167.4U CN203452662U (en) | 2013-08-30 | 2013-08-30 | Horizontal well subsection setting type wellhead flow method water exploration pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452662U true CN203452662U (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538167.4U Expired - Fee Related CN203452662U (en) | 2013-08-30 | 2013-08-30 | Horizontal well subsection setting type wellhead flow method water exploration pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420836A (en) * | 2013-08-30 | 2015-03-18 | 中国石油天然气股份有限公司 | Horizontal well subsection setting type wellhead flow method water exploration pipe column and water exploration method thereof |
| CN107339096A (en) * | 2017-07-28 | 2017-11-10 | 中国石油天然气股份有限公司 | Rapid water exploration method for horizontal well |
-
2013
- 2013-08-30 CN CN201320538167.4U patent/CN203452662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420836A (en) * | 2013-08-30 | 2015-03-18 | 中国石油天然气股份有限公司 | Horizontal well subsection setting type wellhead flow method water exploration pipe column and water exploration method thereof |
| CN107339096A (en) * | 2017-07-28 | 2017-11-10 | 中国石油天然气股份有限公司 | Rapid water exploration method for horizontal well |
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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: 20140226 Termination date: 20210830 |