CN108397186A - A kind of horizontal well temperature excitement water detection device and method - Google Patents
A kind of horizontal well temperature excitement water detection device and method Download PDFInfo
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- CN108397186A CN108397186A CN201810095149.0A CN201810095149A CN108397186A CN 108397186 A CN108397186 A CN 108397186A CN 201810095149 A CN201810095149 A CN 201810095149A CN 108397186 A CN108397186 A CN 108397186A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 14
- 230000006641 stabilisation Effects 0.000 claims description 8
- 238000011105 stabilization Methods 0.000 claims description 8
- 239000003673 groundwater Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 241001269238 Data Species 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 239000009096 changqing Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention belongs to oil extraction in oil field technical fields, more particularly to a kind of horizontal well temperature excitement water detection device and method, including silk plug, water detection unit, oil pipe, pumping equipment, the upper semisection of oil pipe is vertical oil pipe, the lower semisection of oil pipe is horizontal oil pipe, pumping equipment is connected in vertical oil pipe, and water detection unit and silk plug are connected in turn from left to right on horizontal oil pipe；It solves in existing method, the water detection period is long, the big problem of construction intensity, has and further shortens the water detection period, improves water detection efficiency, reduces the labor intensity of site operation personnel, this method is easy for construction, and operation is simple, can effectively reduce testing cost.
Description
Technical field
The invention belongs to oil extraction in oil field technical fields, and in particular to a kind of horizontal well temperature excitement water detection device and method.
Background technology
Changqing oilfields belong to typical " three-lows " oil reservoir, and oil well need to supplement energy exploitation by pressure break and water filling, with storage
Layer fracture technology is constantly progressive, and horizontal well development has become the effective means for improving oil well well yield.But by reservoir
The influence of fracture development and waterflooding extraction exposes aqueous rising soon in the process of development, the development contradiction that water breakthrough well increases, sternly
The performance for affecting the normal production capacity of horizontal well again, to restore the normal production capacity of oil well, it is premise accurately to find out water exit position, therefore is needed
Water detection is wanted to provide reliable basis for later stage water blockoff measure.
Currently, the representative means of horizontal well water exploration mainly have liquid producing profile log water detection, mechanical coupling segment production to survey
Try water detection etc..Horizontal well liquid producing profile log water detection technology by turbine flowmeter start discharge capacity, horizontal well horizontal segment laminar flow etc. because
The influence of element, to low liquid measure（10m3/d）Horizontal well yield is difficult to, and measurement error is big；Horizontal well in segments production test water detection
Technology, by producing paragraph by paragraph, aqueous chemical examination determine water exit interval, horizontal well Liquid output is required relatively low, but the technology is more
Water detection on horizontal well is transformed for section in application, the water detection period is long（Average 30-40 days/well）, produced on-site needs cannot be met.Cause
, all there is certain technical limitation in this, cannot fully meet produced on-site needs from existing level well water detection technology, technology at
Ripe degree and adaptability need to be further increased.
Invention content
The purpose of the present invention is overcoming the period of water detection in the prior art long, the big problem of construction intensity.
For this purpose, the present invention provides a kind of horizontal well temperature excitement water detection device, including silk plug, water detection unit, oil pipe, pumping
Equipment is drawn, the upper semisection of oil pipe is vertical oil pipe, and the lower semisection of oil pipe is horizontal oil pipe, and pumping equipment is connected to vertical oil pipe
Interior, water detection unit and silk plug are connected in turn from left to right on horizontal oil pipe.
The water detection unit includes temperature and pressure tester, down-hole switch and packer, and packer, down-hole switch and temperature and pressure are surveyed
Examination instrument is sequentially connected from left to right.
The water detection element number is multiple and is connected in turn from left to right on horizontal oil pipe.
The temperature and pressure tester is electron temperature pressure gauge, and down-hole switch is memory-type DH intellectual contactor, electronics
The temperature measurement accuracy of thermobarometer is 0.01 DEG C, pressure measurement accuracy 0.1%FS.
A kind of horizontal well temperature excitement groundwater prospecting method：Include the following steps：
1）According to fractured horizontal well hop count, mating identical quantity temperature and pressure tester, down-hole switch, packer, by temperature and pressure tester,
Down-hole switch, packer are transported to underground with oil pipe, and horizontal well is divided into pay interval by packer, and each pay interval corresponds to
Temperature and pressure tester, down-hole switch are set；
2）After temperature and pressure tester tripping in predeterminated position, closes horizontal well and carry out each pay interval temperature and pressure recovery test, obtain
After obtaining initial temperature and pressure recovery test data, pass through pumping equipment and carry out drain, after liquid level, aqueous stabilization, opens water
Horizontal well acts pumping equipment；
3）Cold water is injected into oil pipe, forms temperature excitement, it is extensive to be again switched off each pay interval temperature and pressure of horizontal well test
It is multiple, after being completed, drain is carried out again by pumping equipment (15), after liquid level, aqueous stabilization, acts pumping equipment；
4）After being completed, acts water detection device, the temperature and pressure data of temperature and pressure tester are analyzed.
The step 4）In if the fuel-displaced interval cold water injection stage temperature change it is big, the temperature and pressure after temperature excitement
Restore abnormal with first test data；If water exit interval, temperature and pressure variation is respectively less than fuel-displaced interval.
The down-hole switch is in ground preset switches state, and in tripping in horizontal well, down-hole switch is fully open, horizontal well
It carries out each pay interval temperature and pressure and restores down-hole switch Close All when test, the down-hole switch when acting temperature and pressure tester
It is fully open.
Beneficial effects of the present invention：This horizontal well temperature excitement water detection device and method provided by the invention, passes through pass
Each interval temperature and pressure of well test horizontal well restores, and compared with each interval temperature and pressure restores after temperature excitement, comprehensive
Conjunction, which is sentenced, knows the main water exit interval of horizontal segment, and implementing water blockoff for the later stage provides foundation.This method is easy for construction, and operation is simple, is dropping
It can effectively shorten the water detection period while low testing cost, improve water detection efficiency.
Description of the drawings
The present invention is described in further details below with reference to attached drawing.
Fig. 1 is the structural schematic diagram of the present invention.
Reference sign：1, silk plug；2, temperature and pressure tester；3, down-hole switch；4, packer；5, oil pipe；6, pumping is set
It is standby.
Specific implementation mode
Embodiment 1：
As shown in Figure 1, a kind of horizontal well temperature excitement water detection device, including silk plug 1, water detection unit, oil pipe 5, pumping equipment 6,
The upper semisection of oil pipe 5 is vertical oil pipe, and the lower semisection of oil pipe 5 is horizontal oil pipe, and pumping equipment 6 is connected in vertical oil pipe, looks for
Water unit and silk plug 1 are connected in turn from left to right on horizontal oil pipe；By water detection unit by 5 tripping in precalculated position of oil pipe, close
Close each interval of horizontal well and restore test temperature and pressure, and with after temperature excitement compared with each interval temperature and pressure recovery value
Compared with the main water exit interval of comprehensive discrimination horizontal segment implements water blockoff for the later stage and provides foundation.This method is easy for construction, and operation is simple,
It can effectively shorten the water detection period while reducing testing cost, improve water detection efficiency.
The water detection unit includes temperature and pressure tester 2, down-hole switch 3 and packer 4, packer 4,3 and of down-hole switch
Temperature and pressure tester 2 is sequentially connected from left to right；Temperature and pressure tester 2 is used for testing and obtaining the measurement data of temperature and pressure, envelope
It is set every device 4 and is opened each pay interval card, it is simple in structure, it is easy to operate.
The water detection element number is multiple and is connected in turn from left to right on horizontal oil pipe.It can be according to pay interval
Quantity be mediated, it is adaptable, have a wide range of application.
The temperature and pressure tester 2 is electron temperature pressure gauge, and down-hole switch 3 is memory-type DH intellectual contactor, electricity
The temperature measurement accuracy of sub- thermobarometer is 0.01 DEG C, pressure measurement accuracy 0.1%FS.High certainty of measurement, error are small.
Embodiment 2：
As shown in Figure 1, on the basis of embodiment 1, a kind of horizontal well temperature excitement groundwater prospecting method：Include the following steps：
1）According to fractured horizontal well hop count, mating identical quantity temperature and pressure tester 2, down-hole switch 3, packer 4 test temperature and pressure
Instrument 2, down-hole switch 3, packer 4 are transported to underground with oil pipe 5, and horizontal well is divided into pay interval, each production by packer 4
Interval is correspondingly arranged temperature and pressure tester 2, down-hole switch 3；
2）After 2 tripping in predeterminated position of temperature and pressure tester, closes horizontal well and carry out each pay interval temperature and pressure recovery test, obtain
After obtaining initial temperature and pressure recovery test data, pass through pumping equipment 6 and carry out drain, after liquid level, aqueous stabilization, opens water
Horizontal well acts pumping equipment 6；
3）Cold water is injected into oil pipe 5, forms temperature excitement, it is extensive to be again switched off each pay interval temperature and pressure of horizontal well test
It is multiple, after being completed, drain is carried out again by pumping equipment (15), after liquid level, aqueous stabilization, acts pumping equipment 6；
4）After being completed, acts water detection device, the temperature and pressure data of temperature and pressure tester 2 are analyzed.
The step 4）In if the fuel-displaced interval cold water injection stage temperature change it is big, the temperature and pressure after temperature excitement
Restore abnormal with first test data；If water exit interval, temperature and pressure variation is respectively less than fuel-displaced interval.By playing back each layer
Duan Suoyou thermobarometer test datas, each section of temperature and pressure restores variation before and after reduced temperature excitement.If oil-yielding stratum
The temperature change in section cold water injection stage is larger, temperature when second of pressure recovery and press it is extensive with test for the first time have it is obviously different
Often；If water exit interval, temperature and pressure, which changes, is less than oil-yielding stratum section, water exit interval in final determined level well shaft.
The down-hole switch 3 is in ground preset switches state, and in tripping in horizontal well, down-hole switch 3 is fully open, horizontal
Well carries out each pay interval temperature and pressure and restores 3 Close All of down-hole switch when test, the underground when acting temperature and pressure tester 2
Switch 3 is fully open.The on off state sequential of down-hole switch 3 is preset on ground first, and self-test operations are completed on ground, it is ensured that
All down-hole switch can be opened and closed normally；In tripping in device procedures, the down-hole switch 3 is fully open, makes oil jacket annular space
It is connected to oil pipe 5, it is ensured that construction safety；3 Close All of down-hole switch during test temperature and pressure recovery ensures test
Temperature and pressure recovery value is effective；In playing device procedures, all down-hole switch 3 are kept open, and reduce construction safety wind
Danger.
Embodiment 3
As shown in Figure 1, on the basis of embodiment 2, by taking Changqing oilfields flatly 4 sections of horizontal wells as an example, in conjunction with attached drawing 1 to horizontal well
Temperature excitement water detection device and method illustrates.
A kind of horizontal well temperature excitement water detection device, including silk plug 1,4 water detection unit, oil pipe 5, pumping equipment 6, oil pipe
5 upper semisection is vertical oil pipe, and the lower semisection of oil pipe 5 is horizontal oil pipe, and pumping equipment 6 is connected in vertical oil pipe, 4 water detections
Unit and silk plug 1 are connected in turn from left to right on horizontal oil pipe；The water detection unit includes that temperature and pressure tester 2, underground are opened
Pass 3 and packer 4, packer 4, down-hole switch 3 and temperature and pressure tester 2 are sequentially connected from left to right；The temperature and pressure tester 2
For electron temperature pressure gauge, down-hole switch 3 is memory-type DH intellectual contactor, the temperature measurement accuracy of electron temperature pressure gauge
It is 0.01 DEG C, pressure measurement accuracy 0.1%FS；The pumping equipment 6 not tripping in during removing water detection device and test,
Only tripping in and work in pumping.
A kind of horizontal well temperature excitement groundwater prospecting method, includes the following steps：First four down-hole switch 3 are preset on ground
On off state sequential, and complete self-test operations on ground, it is ensured that all down-hole switch 3 can be opened and closed normally；In lower water detection device
In the process, four undergrounds 3 switch fully open, so that oil jacket annular space is connected to oil pipe 5, it is ensured that construction safety；It is testing
3 Close All of down-hole switch during temperature and pressure restores ensures that the temperature and pressure recovery value of test is effective；Playing water detection dress
During setting, all down-hole switch 3 are kept open, and reduce construction safety risk.
Water detection device is connected into rear G.I.H, will be set to precalculated position by each production layer under 4 packers
Duan Kakai sets rear closing well and tests 5 days, tests each perforated interval initial temperature and pressure recovery.
Temperature and pressure recovery be completed after, by pumping equipment 6 carry out huge discharge drain, continuous production 5-8 days, and
Liquid and aqueous situation are produced in ground metering, after liquid level, aqueous stabilization, acts pumping equipment 6.
Into oil pipe 5 huge discharge inject cold water, formed temperature excitement, closing well test 5 days, test again each interval temperature and
Pressure recovery.
After being completed, huge discharge drain, continuous production 5-8 days, and in ground metering are carried out again by pumping equipment 6
Liquid and aqueous situation are produced, after liquid level, aqueous stabilization, acts pumping equipment 6.
Water detection device is played out after being completed, by playing back each all thermobarometer test datas of pay interval, comparison
Each section of temperature and pressure restores variation before and after temperature excitement.It is larger if the temperature change in fuel-displaced interval cold water injection stage, the
Extensive tested with first time of temperature and pressure when secondary pressure restores has apparent exception；If water exit interval, temperature and pressure becomes
Change and is less than oil-yielding stratum section, water exit interval in final determined level well shaft.
The present invention further shortens the water detection period, improves water detection efficiency, and high certainty of measurement reduces site operation personnel's
Labor intensity, this method is easy for construction, and operation is simple, and testing cost is reduced by 40%.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (7)
1. a kind of horizontal well temperature excitement water detection device, it is characterised in that：Including silk plug（1）, water detection unit, oil pipe（5）, pumping
Equipment（6）, oil pipe（5）Upper semisection be vertical oil pipe, oil pipe（5）Lower semisection be horizontal oil pipe, pumping equipment（6）It is connected to
In vertical oil pipe, water detection unit and silk plug（1）It is connected in turn from left to right on horizontal oil pipe.
2. horizontal well temperature excitement water detection device as described in claim 1, it is characterised in that：The water detection unit includes temperature
Pressure tester（2）, down-hole switch（3）And packer（4）, packer（4）, down-hole switch（3）With temperature and pressure tester（2）From left-hand
The right side is sequentially connected.
3. horizontal well temperature excitement water detection device as claimed in claim 2, it is characterised in that：The water detection element number is
It is multiple and be connected in turn from left to right on horizontal oil pipe.
4. horizontal well temperature excitement water detection device as claimed in claim 3, it is characterised in that：The temperature and pressure tester（2）
For electron temperature pressure gauge, down-hole switch（3）Temperature for memory-type DH intellectual contactor, electron temperature pressure gauge measures essence
Degree is 0.01 DEG C, pressure measurement accuracy 0.1%FS.
5. a kind of horizontal well temperature excitement groundwater prospecting method, which is characterized in that include the following steps：
1）According to fractured horizontal well hop count, mating identical quantity temperature and pressure tester（2）, down-hole switch（3）, packer（4）, will be warm
Pressure tester（2）, down-hole switch（3）, packer（4）With oil pipe（5）It is transported to underground, packer（4）Horizontal well is divided into
Pay interval, each pay interval are correspondingly arranged temperature and pressure tester（2）, down-hole switch（3）；
2）Temperature and pressure tester（2）After tripping in predeterminated position, closes horizontal well and carries out each pay interval temperature and pressure recovery test,
After obtaining initial temperature and pressure recovery test data, pass through pumping equipment（6）Drain is carried out to beat after liquid level, aqueous stabilization
Boiling water horizontal well acts pumping equipment（6）；
3）To oil pipe（5）Interior injection cold water forms temperature excitement, is again switched off each pay interval temperature and pressure of horizontal well test
Restore, after being completed, drain is carried out again by pumping equipment (15), after liquid level, aqueous stabilization, acts pumping equipment
（6）；
4）After being completed, act water detection device, to temperature and pressure tester（2）Temperature and pressure data analyzed.
6. horizontal well temperature excitement groundwater prospecting method as claimed in claim 5, it is characterised in that：The step 4）In if fuel-displaced
The temperature change in interval cold water injection stage is big, and the temperature and pressure after temperature excitement restores abnormal with first test data；If
Water exit interval, temperature and pressure variation are respectively less than fuel-displaced interval.
7. horizontal well temperature excitement groundwater prospecting method as claimed in claim 6, it is characterised in that：The down-hole switch（3）On ground
Face preset switches state, the down-hole switch in tripping in horizontal well（3）Fully open, horizontal well carries out each pay interval temperature and pressure
Power restores down-hole switch when test（3）Close All is acting temperature and pressure tester（2）When down-hole switch（3）It is fully open.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095149.0A CN108397186B (en) | 2018-01-31 | 2018-01-31 | Horizontal well temperature exciting water finding device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095149.0A CN108397186B (en) | 2018-01-31 | 2018-01-31 | Horizontal well temperature exciting water finding device and method |
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| Publication Number | Publication Date |
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| CN108397186A true CN108397186A (en) | 2018-08-14 |
| CN108397186B CN108397186B (en) | 2022-01-04 |
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ID=63095758
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622749A (en) * | 2020-04-14 | 2020-09-04 | 中国石油化工股份有限公司 | Water exploration pipe column and water exploration method for thick oil thermal recovery screen pipe well completion horizontal well |
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| Publication number | Publication date |
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| CN108397186B (en) | 2022-01-04 |
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