CN104100254A - Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof - Google Patents
Sectional synchronous flow rate and water content monitoring and water exploration tubular column of multi-section fracturing horizontal well and working method thereof Download PDFInfo
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- CN104100254A CN104100254A CN201310114236.3A CN201310114236A CN104100254A CN 104100254 A CN104100254 A CN 104100254A CN 201310114236 A CN201310114236 A CN 201310114236A CN 104100254 A CN104100254 A CN 104100254A
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Abstract
The invention discloses a sectional synchronous flow rate and water content monitoring and water exploration tubular column of a multi-section fracturing horizontal well and a working method thereof, and the tubular column is designed for realizing synchronous monitoring and water exploration for all intervals of the horizontal well through one trip of the tubular column. The tubular column is arranged between a screwed plug and an oil well pump, multiple stages of connecting units consisting of underground storage flow rate and water content monitors and packers are connected through oil pipes, and each stage of connecting unit corresponds to one interval respectively; the upper end of the underground storage flow rate and water content monitor at the top stage is connected with the oil well pump through an oil pipe, the oil pipe is connected to a wellhead, and the oil well pump is connected to a ground pumping unit through a sucker rod. The tubular column adopts the underground storage flow rate and water content monitors, so that synchronous flow rate and water content monitoring and water exploration for multiple intervals through one trip of the tubular column can be realized, the original manner that production and water exploration for each interval are separated is converted into the manner of synchronous production and water exploration, the water exploration period can be significantly shortened, the water discharge interval and the water discharge rate can be determined, the water exploration efficiency is improved, and a reliable basis can be provided for water control and oil production enhancement measures for the horizontal well.
Description
Technical field
The present invention relates to a kind of multistage pressure break horizontal well in segments flow, moisture searching pipe column and the method for work thereof of simultaneously monitoring, belong to oil extraction in oil field technical field.
Background technology
At present, domestic each elephant take that to improve reservoir development degree, improve recovery ratio, improve well yield and reduce cost of winning be core, carries forward vigorously horizontal wells technology.Self well track and the flooding pattern of horizontal well are complicated and changeable, each oil reservoir lithology, physical property are different with properties of fluid in bearing stratum, each interval there are differences at aspects such as water absorbing capacity, water-front advance velocity, production fluid situations, indivedual interval water breakthroughs early, water bearing bed position and direction are indefinite, each layer of production capacity, pressure condition are unclear, water detection technology is immature, particularly the water detection technology of the low liquid measure horizontal well of low-permeability oil deposit is also in the exploratory development stage, on-the-spot dynamically adjustment measure, without specific aim, has a strong impact on horizontal well development effect.At present, existing sectionalized water-exploration testing pipe column of casing well-completion horizontal well adopts intelligent switch device to carry out timing controlled to each interval, produce one by one each interval, moisture by each section of ground assay, judgement water exit interval, all will independently produce 10 days for every section, and the water detection cycle is oversize, have a strong impact on produced on-site progress, be not suitable with the water detection demand of many bunches of long horizontal sections horizontal wells of segmentation.
Summary of the invention
The object of the present invention is to provide a kind of multistage pressure break horizontal well in segments flow, moisture searching pipe column and the method for work thereof of simultaneously monitoring, it can be realized each interval segmentation of one-trip string horizontal well and monitor flow, moisture quick water detection technique simultaneously, for the water-control oil-increasing measure of horizontal well provides reliable foundation.
Concrete technology contents of the present invention is as follows:
Multistage pressure break horizontal well in segments flow, the moisture searching pipe column of simultaneously monitoring:
This tubing string, between plug and oil well pump, connects the multistage linkage unit forming with down-hole storage type flow, moisture-content monitoring instrument and packer by oil pipe, each corresponding interval of down-hole storage type flow, moisture-content monitoring instrument and the packer of every grade.The most top down-hole storage type flow, moisture-content monitoring instrument upper end connect oil well pump by oil pipe, and the connection of oil well pump upper end is located at the sucker rod in oil pipe, and oil pipe is connected to well head, and sucker rod connects ground oil pumper.
Multistage pressure break horizontal well in segments flow, moisture method of work of simultaneously monitoring searching pipe column:
First, by design scheme, on ground, take and second, minute, hour set the acquisition time of flow, the data such as moisture as chronomere, then water detection kit is connected according to the catenation principle of " segmentation flow, the moisture searching pipe column of monitoring " simultaneously.Then, by tubing string, down to precalculated position, packers at different levels are opened each interval sealed clamping cleat, and ground oil pumper is produced continuously.Produce 10 days early stage, and after operation fluid emptying in pit shaft, each interval is produced simultaneously again and within 6 days, reached stable state.During this time, down-hole storage type flow, moisture-content monitoring instrument record stores the flow of each interval, the total data such as moisture.Trip out down-hole storage type flow, moisture-content monitoring instrument, playback of data, accurately judges water exit interval and water yield.
The present invention compared with the prior art tool has the following advantages:
This tubing string adopts down-hole storage type flow, moisture-content monitoring instrument, can realize one-trip string multi-section multi-layer segmentation flow, moisturely monitor water detection test simultaneously, by each original interval one by one production water detection change simultaneously production test water detection into, can significantly shorten water detection test period, define water exit interval and water flow, improve water detection testing efficiency high, for the water-control oil-increasing measure of horizontal well provides reliable basis.
Accompanying drawing explanation
Fig. 1 is multistage pressure break horizontal well in segments flow, the moisture searching pipe column structural representation of simultaneously monitoring.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiments of the invention are further illustrated:
The upper end of the plug 1 of this tubing string taper connects I level down-hole storage type flow by oil pipe 2, moisture-content monitoring instrument 3, I level down-hole storage type flow, moisture-content monitoring instrument 3 upper ends connect I level packer 4 by oil pipe 2, I level packer 4 upper ends connect II level down-hole storage type flow by oil pipe 2, moisture-content monitoring instrument 5, II level down-hole storage type flow, moisture-content monitoring instrument 5 upper ends connect II level packer 6 by oil pipe 2, II level packer 6 upper ends connect III level down-hole storage type flow by oil pipe 2, moisture-content monitoring instrument 7, III level down-hole storage type flow, moisture-content monitoring instrument 7 upper ends connect III level packer 8 by oil pipe 2, III level packer 8 upper ends connect IV level down-hole storage type flow by oil pipe 2, moisture-content monitoring instrument 9, IV level down-hole storage type flow, moisture-content monitoring instrument 9 upper ends connect IV level packer 10 by oil pipe 2, IV level packer 10 upper ends connect V level down-hole storage type flow by oil pipe 2, moisture-content monitoring instrument 11, V level down-hole storage type flow, moisture-content monitoring instrument 11 upper ends connect the oil well pump 12 of gap bridge or rod-type by oil pipe 2, oil well pump 12 upper end connected pipes 2 and be located at the sucker rod 13 in oil pipe 2, oil pipe 2 is connected to well head, sucker rod 13 upper ends connect ground oil pumper 14.
Oil well pump 12 and the sucker rod 13 of this tubing string are positioned at well vertical section, the plug 1 of this tubing string is positioned at well horizontal segment to V level down-hole storage type flow, moisture-content monitoring instrument 11, altogether corresponding five intervals of Pyatyi down-hole storage type flow, moisture-content monitoring instrument and the packer of this tubing string.
Multistage pressure break horizontal well in segments flow, moisture method of work of simultaneously monitoring searching pipe column:
First, by design scheme, on ground, take and second, minute, hour set the acquisition time of flow, the data such as moisture as chronomere, then water detection kit is connected according to the catenation principle of " segmentation flow, the moisture searching pipe column of monitoring " simultaneously.Then, by tubing string, down to precalculated position, packers at different levels are opened each interval sealed clamping cleat, and ground oil pumper is produced continuously.Produce 10 days early stage, and after operation fluid emptying in pit shaft, each interval is produced simultaneously again and within 6 days, reached stable state.During this time, down-hole storage type flow, moisture-content monitoring instrument record stores the flow of each interval, the total data such as moisture.Trip out down-hole storage type flow, moisture-content monitoring instrument, playback of data, accurately judges water exit interval and water yield.
The flatly experimental data of 5 sections of level of production wells of take is example, adopts existing tubing string, and early stage, discharge opeing was 10 days, and each interval independently is produced 10 days, 5 sections 50 days, needs are 60 days altogether.And discharge opeing in the technique of this tubing string early stage 10 days, each interval is produced simultaneously and within 6 days, is reached stable, down-hole storage type flow, moisture-content monitoring instrument record stores the flow of each interval, the total data such as moisture during this time, playback of data after tripping out down-hole storage type flow, moisture-content monitoring instrument, accurately judgement water exit interval and water yield, amount to and need 16 days.
Claims (4)
1. multistage pressure break horizontal well in segments flow, the moisture searching pipe column of simultaneously monitoring, is characterized in that:
This tubing string is between plug (1) and oil well pump (12), by oil pipe (2), connect the multistage linkage unit forming with down-hole storage type flow, moisture-content monitoring instrument and packer, each corresponding interval of down-hole storage type flow, moisture-content monitoring instrument and the packer of every grade; The most top down-hole storage type flow, moisture-content monitoring instrument upper end connect oil well pump by oil pipe, and the connection of oil well pump upper end is located at the sucker rod in oil pipe, and oil pipe is connected to well head, and sucker rod connects ground oil pumper.
2. multistage pressure break horizontal well in segments flow according to claim 1, the moisture searching pipe column of simultaneously monitoring, is characterized in that:
The upper end of the plug of this tubing string taper (1) connects I level down-hole storage type flow by oil pipe (2), moisture-content monitoring instrument (3), I level down-hole storage type flow, moisture-content monitoring instrument (3) upper end connects I level packer (4) by oil pipe (2), I level packer (4) upper end connects II level down-hole storage type flow by oil pipe (2), moisture-content monitoring instrument (5), II level down-hole storage type flow, moisture-content monitoring instrument (5) upper end connects II level packer (6) by oil pipe (2), II level packer (6) upper end connects III level down-hole storage type flow by oil pipe (2), moisture-content monitoring instrument (7), III level down-hole storage type flow, moisture-content monitoring instrument (7) upper end connects III level packer (8) by oil pipe (2), III level packer (8) upper end connects IV level down-hole storage type flow by oil pipe (2), moisture-content monitoring instrument (9), IV level down-hole storage type flow, moisture-content monitoring instrument (9) upper end connects IV level packer (10) by oil pipe (2), IV level packer (10) upper end connects V level down-hole storage type flow by oil pipe (2), moisture-content monitoring instrument (11), V level down-hole storage type flow, moisture-content monitoring instrument (11) upper end connects the oil well pump (12) of gap bridge or rod-type by oil pipe (2), oil well pump (12) upper end connected pipes (2) and be located at the sucker rod (13) in oil pipe (2), oil pipe (2) is connected to well head, sucker rod (13) upper end connects ground oil pumper (14),
The oil well pump of this tubing string (12) and sucker rod (13) are positioned at well vertical section, the plug of this tubing string (1) is positioned at well horizontal segment to V level down-hole storage type flow, moisture-content monitoring instrument (11), altogether corresponding five intervals of Pyatyi down-hole storage type flow, moisture-content monitoring instrument and the packer of this tubing string.
3. multistage pressure break horizontal well in segments flow, a moisture method of work of simultaneously monitoring searching pipe column, is characterized in that:
First, by design scheme, on ground, take and second, minute, hour set the acquisition time of flow, the data such as moisture as chronomere, then water detection kit is connected according to the catenation principle of " segmentation flow, the moisture searching pipe column of monitoring " simultaneously; Then, by tubing string, down to precalculated position, packers at different levels are opened each interval sealed clamping cleat, and ground oil pumper is produced continuously; Produce 10 days early stage, and after operation fluid emptying in pit shaft, each interval is produced simultaneously again and within 6 days, reached stable state; During this time, down-hole storage type flow, moisture-content monitoring instrument record stores the flow of each interval, the total data such as moisture; Trip out down-hole storage type flow, moisture-content monitoring instrument, playback of data, accurately judges water exit interval and water yield.
4. multistage pressure break horizontal well in segments flow according to claim 3, moisture method of work of simultaneously monitoring searching pipe column, it is characterized in that this tubing string can realize the segmentation flow of one-trip string multi-section multi-layer, moisturely monitor water detection test simultaneously, by each original interval one by one production water detection change simultaneously production test water detection into, can significantly shorten water detection test period, define water exit interval and water flow, improve water detection testing efficiency high, for the water-control oil-increasing measure of horizontal well provides reliable basis.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104481470A (en) * | 2014-12-25 | 2015-04-01 | 中国石油天然气股份有限公司 | Self-adaptive water control string for oil wells and self-adaptive water control method for oil wells |
| CN105114061A (en) * | 2015-08-31 | 2015-12-02 | 中国石油天然气股份有限公司 | String and method for quickly surveying water in horizontal well by multi-parameter combined test without moving string |
| CN105422085A (en) * | 2015-12-29 | 2016-03-23 | 中国石油天然气股份有限公司 | Sliding sleeve switch type water exploration tube column for horizontal wells |
| 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 |
| CN106593422A (en) * | 2016-12-01 | 2017-04-26 | 中国石油天然气股份有限公司 | Storage type test method and pipe column in horizontal well oil pipe |
| CN108397186A (en) * | 2018-01-31 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of horizontal well temperature excitement water detection device and method |
| CN108868744A (en) * | 2018-07-03 | 2018-11-23 | 中国石油天然气股份有限公司 | A kind of multistage pressure break horizontal well production profile real-time testing system and test method |
| CN109415936A (en) * | 2016-05-03 | 2019-03-01 | 斯伦贝谢技术有限公司 | For plug be ground or cleaning/work-over operation during establish the method and system of well performance |
| CN111852449A (en) * | 2020-09-09 | 2020-10-30 | 哈尔滨艾拓普科技有限公司 | Continuous dragging type horizontal well produced liquid sectional test system |
| CN112360438A (en) * | 2020-12-04 | 2021-02-12 | 中国石油天然气股份有限公司 | Underground rapid water exploration test pipe column and using method |
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Cited By (12)
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| CN104481470A (en) * | 2014-12-25 | 2015-04-01 | 中国石油天然气股份有限公司 | Self-adaptive water control string for oil wells and self-adaptive water control method for oil wells |
| CN104481470B (en) * | 2014-12-25 | 2017-08-04 | 中国石油天然气股份有限公司 | A kind of self-adaptive controlled water pipe post of oil well and method |
| CN105114061A (en) * | 2015-08-31 | 2015-12-02 | 中国石油天然气股份有限公司 | String and method for quickly surveying water in horizontal well by multi-parameter combined test without moving string |
| CN105422085A (en) * | 2015-12-29 | 2016-03-23 | 中国石油天然气股份有限公司 | Sliding sleeve switch type water exploration tube column for horizontal wells |
| 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 |
| CN109415936A (en) * | 2016-05-03 | 2019-03-01 | 斯伦贝谢技术有限公司 | For plug be ground or cleaning/work-over operation during establish the method and system of well performance |
| CN106593422A (en) * | 2016-12-01 | 2017-04-26 | 中国石油天然气股份有限公司 | Storage type test method and pipe column in horizontal well oil pipe |
| CN108397186A (en) * | 2018-01-31 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of horizontal well temperature excitement water detection device and method |
| CN108868744A (en) * | 2018-07-03 | 2018-11-23 | 中国石油天然气股份有限公司 | A kind of multistage pressure break horizontal well production profile real-time testing system and test method |
| CN111852449A (en) * | 2020-09-09 | 2020-10-30 | 哈尔滨艾拓普科技有限公司 | Continuous dragging type horizontal well produced liquid sectional test system |
| CN111852449B (en) * | 2020-09-09 | 2022-11-25 | 哈尔滨艾拓普科技有限公司 | Continuous dragging type horizontal well produced liquid sectional test system |
| CN112360438A (en) * | 2020-12-04 | 2021-02-12 | 中国石油天然气股份有限公司 | Underground rapid water exploration test pipe column and using method |
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