CN104373116B - Online continuous monitoring sampling protecting device for external oil-water well casing pressure - Google Patents
Online continuous monitoring sampling protecting device for external oil-water well casing pressure Download PDFInfo
- Publication number
- CN104373116B CN104373116B CN201410616923.XA CN201410616923A CN104373116B CN 104373116 B CN104373116 B CN 104373116B CN 201410616923 A CN201410616923 A CN 201410616923A CN 104373116 B CN104373116 B CN 104373116B
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- Prior art keywords
- pressure
- valve
- threeway
- casing
- continuous monitoring
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000005070 sampling Methods 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000000523 sample Substances 0.000 claims description 39
- 238000009530 blood pressure measurement Methods 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 description 13
- 239000000470 constituent Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
- E21B49/088—Well testing, e.g. testing for reservoir productivity or formation parameters combined with sampling
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to an online continuous monitoring sampling protecting device for external oil-water well casing pressure. The problem that an existing casing is damaged by being extruded or broken is mainly solved. The online continuous monitoring sampling protecting device is characterized in that the upper portion of a pressure measuring sampling tube (4) is connected with a ground device (18), the lower portion of the pressure measuring sampling tube (4) is connected with a pressure sampling sampler (8), the ground device (18) is arranged at the position of an oil-water well mouth (27) and comprises a tee joint I (17), the lower portion of the tee joint I (17) is connected with a well shut-in valve (30), the lower portion of the well shut-in valve (30) is connected with the pressure measuring sampling tube (4), the upper portion of the tee joint I (17) is connected with a liquid injection exhaust and drainage valve (16), and a side face connector of the tee joint I (17) is connected with a pressure measuring recording instrument (14) and a sampling valve (13). According to the online continuous monitoring sampling protecting device, changes of the external casing pressure and changes of water quality components can be monitored in real time, so that corresponding measures are adopted before the casing is extruded or broke, and casing damages are avoided or reduced.
Description
Technical field
The present invention relates to oilfield, specifically a kind of to carry out online prison in real time for Casing Failure external pressure
Survey, real time sample and protect Casing Failure not to be extruded or the oil-water well set external pressure on-line continuous monitoring sampling of bad break is protected
Protection unit.
Background technology
In recent years, due to increasing oil field injection and extraction intensity, old filed is caused casing damage area in blocks, some block sleeve pipes occur
Damage well number and account for 50% or so of total well number, and casing damage scope is in increase trend year by year.At present, the sleeve pipe direction of extrusion is without system
One rule, index bed（Tender two sections）Whole height be about 10 meters or so, in this region, there is single-point, multiple spot, multi-direction in sleeve pipe
Extruding or bad break, mostly serpentine.Additionally, close on the suffered direction of extrusion between well not knowing, in same block, there is good well
Replace bad break phenomenon with bad well, without unified rule, thus, it can be known that it is by block factor and individual well factor that the source of damage occurs in sleeve pipe
Together decide on, including geology ecosystem situation, drilling well and injection-production method and development scheme, note adopt composition and cementing quality, life
Produce maintenance measure etc..Jing investigation statisticses, in the casing damage well for occurring, about 60% casing deformation or bad break position are in oil field
Index bed（Tender two sections）, there is index bed in most of oil fields（Tender two sections）, it is about between 600~1000 meters away from earth's surface depth,
And this index bed is mainly fine and close dunn bass, there is layer to manage phenomenon, fine and close dunn bass is typically impermeable, but in long-term high pressure injection
After water, multilayer dunn bass interlayer can be made cleavage phenomenon occur, produce sliding, the sleeve pipe at extruding or bad break this index bed,
Casing damage is caused, while casing repairing cost is very high（General 60~1,000,000/well）, cause very big waste.
The content of the invention
In order to overcome the shortcomings of existing sleeve pipe be squeezed or bad break and occur damaging, the present invention provides a kind of oil-water well set
External pressure on-line continuous monitoring samples protection device, and the oil-water well set external pressure on-line continuous monitoring sampling protection device can be supervised in real time
The pressure change and water-quality constituents change of jacket exterior is surveyed, it is right to take corresponding measure before extruding or bad break occurs in sleeve pipe
Sleeve pipe plays a protective role, so as to avoid or reduce casing damage.
The technical scheme is that：A kind of oil-water well set external pressure on-line continuous monitoring sampling protection device, including being placed in
Pressure measurement probe tube between bore hole and production casing, described pressure measurement probe tube top connection ground installation, under pressure measurement probe tube
Portion connects pressure-testing sampler；
Described ground installation is placed at oil-water well well head, including threeway I, shut-in valve, pressure measxurement recorder, described
Threeway I bottoms are connected with shut-in valve, and shut-in valve bottom is connected by transition short circuit with pressure measurement probe tube, and is set outside transition short circuit
There is pressure measurement to sample tube boot, described threeway I tops are connected with fluid injection exhaust draining valve, and threeway I side face ports are connected with pressure
Power surveying record instrument and sample cock.
Described pressure-testing sampler includes one-level screen casing, two grades of screen casings, three-level screen casings, and screen casing bottoms at different levels are by fixed company
Bar connects, and mesh is provided with screen casing at different levels.
Described fluid injection exhaust draining valve top is provided with fluid injection exhaust leakage fluid dram, and described threeway I side face ports are successively
Connection blocked valve and releasing pressure automatically safety valve, are connected with threeway II on releasing pressure automatically safety valve, be connected in threeway II and take
Sample valve and pressure measxurement recorder.
The present invention has the advantages that：Due to taking such scheme, pressure-testing sampler to be placed in the monitoring position of index bed
Put, be connected with oil-water well wellhead ground device pressure measxurement recorder using pressure measurement probe tube, you can real-time monitoring precalculated position
The water string pressure change at place, and keep track of pressure change.After pressure increases, will by the releasing pressure automatically safety valve on ground
Pressure discharges, it is to avoid form water under high pressure string, extruding when shale misplaces mobile to sleeve pipe and bad break is reduced or eliminated, so as to protect
Sleeve pipe is not damaged by monitoring position.Meanwhile, water quality sample can be received in sample tap, it is easy to be analyzed water-quality constituents,
Understanding water-quality constituents change at monitoring position is, before extruding or bad break occurs in sleeve pipe, water under high pressure string stressor layer is grasped in real time and is asked
Topic, and take corresponding measure, it is to avoid or reduce the probability of casing failure.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
1- conduits in figure, 2- surface pipes, 3- bore holes, 4- pressure measurement probe tubes, 5- box cupling I, 6- one-level screen casings, bis- grades of sieves of 7-
Pipe, 8- pressure-testing samplers, 9- three-level screen casings, 10- meshes, 11- fixes connecting rod, 12- sample taps, 13- sample cocks, 14- pressure
Surveying record instrument, 15- fluid injections exhaust leakage fluid dram, 16- fluid injections exhaust draining valve, 17- threeway I, 18- ground installations, 19- box cuplings
II, 20- transition short circuit, 21- box cuplings III, 22- pressure measurement sampling tube boot, 23- production casings, 24- oil pipes, 25- cement sheaths, 26-
Threeway II, 27- oil-water well well heads, 28- releasing pressure automatically safety valves, 29- blocked valves, 30- shut-in valves, 31- underground devices, A- standards
Layer.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described：
As shown in Figure 1, a kind of oil-water well set external pressure on-line continuous monitoring sampling protection device, by ground installation 18 and underground
Device 31 is constituted, and is connected by pressure measurement probe tube 4 therebetween.In drilling process, take out drilling tool after, pressure measurement probe tube 4 with
Production casing 23 declines simultaneously, and fixture fixes the two, makes pressure measurement probe tube 4 and underground device 31 be placed in bore hole 3 with life
Produce between sleeve pipe 23, surface pipe 2 and conduit 1 are provided with outside bore hole 3, the inside of production casing 23 is oil pipe 24.Pressure measurement probe tube 4
Top connects ground installation 18, and the bottom of pressure measurement probe tube 4 connects underground device 31 by box cupling I5.Described underground device 31 is wrapped
Pressure-testing sampler 8 is included, the lowered position of pressure-testing sampler 8 is in index bed A（Tender two sections）Place, positioned at the top of cement sheath 25, this position
It is that production casing 23 is easily extruded or bad break position, referred to herein as monitoring point.Pressure-testing sampler 8 includes 6, two grades of sieves of one-level screen casing
It is provided with mesh 10 on pipe 7, three-level screen casing 9, and screen casing at different levels, screen casing lower ends at different levels form entirety by fixing connecting rod 11 and connect,
Make screen casings at different levels fixed.
Described ground installation 18 is placed at oil-water well well head 27, including threeway I17, shut-in valve 30, pressure measxurement record
Instrument 14, the top of pressure measurement probe tube 4 connects transition short circuit 20 by box cupling III 21, and pressure measurement probe tube is provided with outside transition short circuit 20
Sheath 22, pressure measurement sampling tube boot 22 can protect the screw thread of the upper end of sampling pressure-measuring pipe 4 to be not damaged by, and be easily changed.Survey
Pressure sampling tube boot 22 is fixed on returning in high cement at the lower end 0.2-0.5 rice of oil-water well well head 27, and pressure measurement probe tube 4 is lifted
It is suspended between production casing 23 and bore hole 3, and makes its fixed, loosening phenomenon does not occur in operation process.Filter short
Connect 20 upper ends and shut-in valve 30 is connected by box cupling II 19, when on shut-in valve top, each device or tie point break down, can be by it
Close, be easy to keep in repair or change each part in the top of shut-in valve 30.The top connecting tee I17 of shut-in valve 30, the connection of threeway I17 upper ends
There is fluid injection to be vented draining valve 16, fluid injection exhaust draining valve 16 is provided with fluid injection exhaust leakage fluid dram 15.Threeway I17 side face ports
It is connected with blocked valve 29, releasing pressure automatically safety valve 28 in turn, threeway II 26, threeway II 26 is connected with releasing pressure automatically safety valve 28
On be connected to sample cock 13 and pressure measxurement recorder 14, sample tap 12 is provided with sample cock 13.
Close with the open mode of blocked valve 29 in fluid injection exhaust draining valve 16, such as water under high pressure string occur at monitoring point,
Releasing pressure automatically safety valve 28 is automatically opened up, and can be discharged water quality at monitoring point, so that pressure is in poised state at monitoring point, is prevented
Sealing string hypertonia, causes production casing 23 to be extruded or bad break, while can be taken out underground water by sample tap 12, is easy to
Assay.Wherein in oil-water well normal work, the pressure at the real-time monitoring underground monitoring point of pressure measxurement recorder 14 becomes
Change, and record pressure change data automatically.
Therefore, the device is capable of achieving following functions：
1. jacket exterior pressure is directly monitored.Using the conduction principle between water and pressure, pressure-testing sampler 8 is put
At the monitoring position of index bed A, it is connected with the pressure measxurement recorder 14 on ground installation 18 using pressure measurement probe tube 4, i.e.,
Water string pressure change that can be at the monitored position of real-time monitoring, and keep track of pressure change.
2. monitoring position water quality sample is directly taken out.When water body pressure increases at Casing Failure external monitoring position,
Connected with oil-water well wellhead ground device sample tap 12 using pressure-testing sampler 8, pressure measurement probe tube 4, after pressure increases, water can be made
Body is flowed out by pressure measurement probe tube 4, and water quality sample is received at sample tap 12, is easy to be analyzed water-quality constituents, understands prison
Location puts place's water-quality constituents change.
3. directly water under high pressure string pressure at position is monitored in unloading.Water body pressure increases at the external monitoring position of production casing 23
Gao Shi, the releasing pressure automatically safety valve 28 being provided with by ground installation 18, pressure is discharged, it is to avoid form water under high pressure string, is reduced
Or eliminate shale dislocation it is mobile when to the extruding of sleeve pipe and bad break so as at monitoring for protection position sleeve pipe be not damaged by.
4. online real-time operation.The oil-water well set external pressure on-line continuous monitoring sampling protection device, can be directly perceived in real time accurate
Pressure change at true monitoring sleeve external monitoring position, and water-quality constituents change at monitoring position can be taken out, while
Sleeve pipe occurs before extruding or bad break, and water under high pressure string stressor layer problem is grasped in real time, and takes corresponding measure, and protection is played to sleeve pipe
Effect, it is to avoid or reduce the probability of casing failure.
Claims (2)
1. a kind of oil-water well set external pressure on-line continuous monitoring sampling protection device, including being placed in bore hole（3）With production casing（23）
Between pressure measurement probe tube（4）, it is characterised in that：Described pressure measurement probe tube（4）Top connects ground installation（18）, pressure measurement takes
Sample pipe（4）Bottom connects pressure-testing sampler（8）；
Described ground installation（18）It is placed in oil-water well well head（27）Place, including threeway I（17）, shut-in valve（30）, pressure measxurement
Recorder（14）, described threeway I（17）Bottom is connected with shut-in valve（30）, shut-in valve（30）Bottom passes through transition short circuit（20）
With pressure measurement probe tube（4）It is connected, and transition short circuit（20）Outside is provided with pressure measurement sampling tube boot（22）, described threeway I（17）
Top is connected with fluid injection exhaust draining valve（16）, threeway I（17）Side face port is connected with pressure measxurement recorder（14）And take
Sample valve（13）；
Described pressure-testing sampler（8）Including one-level screen casing（6）, two grades of screen casings（7）, three-level screen casing（9）, screen casing bottoms at different levels lead to
Cross fixed connecting rod（11）Connection, and mesh is provided with screen casing at different levels（10）.
2. oil-water well set external pressure on-line continuous monitoring according to claim 1 samples protection device, it is characterised in that：It is described
Fluid injection exhaust draining valve（16）Top is provided with fluid injection exhaust leakage fluid dram（15）, described threeway I（17）Side face port is successively
Connection blocked valve（29）And releasing pressure automatically safety valve（28）, releasing pressure automatically safety valve（28）On be connected with threeway II（26）, threeway
Ⅱ（26）On be connected to sample cock（13）And pressure measxurement recorder（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616923.XA CN104373116B (en) | 2014-11-05 | 2014-11-05 | Online continuous monitoring sampling protecting device for external oil-water well casing pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616923.XA CN104373116B (en) | 2014-11-05 | 2014-11-05 | Online continuous monitoring sampling protecting device for external oil-water well casing pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373116A CN104373116A (en) | 2015-02-25 |
| CN104373116B true CN104373116B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410616923.XA Expired - Fee Related CN104373116B (en) | 2014-11-05 | 2014-11-05 | Online continuous monitoring sampling protecting device for external oil-water well casing pressure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843621A (en) * | 2015-03-26 | 2015-08-19 | 西南石油大学 | Gas well oil jacket annular protecting fluid replacement device and method thereof |
| CN110617063B (en) * | 2019-11-10 | 2024-01-05 | 宝鸡市凯顺海陆装备科技有限公司 | Deep well sleeve outer annular space two-stage monitoring sampler and monitoring method thereof |
| CN110671097A (en) * | 2019-11-10 | 2020-01-10 | 夏惠芬 | Deep well casing external annular thin pipe multi-parameter online monitoring device and monitoring method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475591A (en) * | 1982-08-06 | 1984-10-09 | Exxon Production Research Co. | Method for monitoring subterranean fluid communication and migration |
| MY115236A (en) * | 1996-03-28 | 2003-04-30 | Shell Int Research | Method for monitoring well cementing operations |
| US7637318B2 (en) * | 2006-03-30 | 2009-12-29 | Halliburton Energy Services, Inc. | Pressure communication assembly external to casing with connectivity to pressure source |
| CN101397904B (en) * | 2008-11-05 | 2012-08-29 | 大庆油田有限责任公司 | Method for monitoring downhole casing strain by using optical fibre sensor |
| EP2599955A1 (en) * | 2011-11-30 | 2013-06-05 | Welltec A/S | Pressure integrity testing system |
| CN202560206U (en) * | 2012-04-29 | 2012-11-28 | 东北石油大学 | Well cementation cement sheath external-load extrusion damage dynamic measuring device |
| CN103032064A (en) * | 2013-01-11 | 2013-04-10 | 西南石油大学 | Method and device for detecting gas cut position in drilling process |
| CN204212767U (en) * | 2014-11-05 | 2015-03-18 | 大庆学府石油科技有限公司 | Oil-water well cover external pressure on-line continuous monitoring sampling protective device |
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2014
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Fujun Inventor after: Li Xiaochuan Inventor after: Song Jingwei Inventor before: Li Fujun Inventor before: Li Xiaochuan Inventor before: Song Jingwei |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Fujun Inventor before: Li Fujun Inventor before: Li Xiaochuan Inventor before: Song Jingwei |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20161205 Address after: 163316 Daqing science and Technology Development Zone, Heilongjiang province high tech Industrial Park, building A1-2, room 503 Applicant after: Li Fujun Address before: Room 1, No. 163316, new industrial incubator, No. 32, torch street, Daqing, Heilongjiang, China Applicant before: DAQING XUEFU PETROLEUM SCIENCE & TECHNOLOGY Co.,Ltd. Applicant before: NORTHEAST PETROLEUM University Applicant before: DAQING DEVELOPMENT ZONE DONGYOU NEW TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20171120 Address after: 163000 Heilongjiang Daqing hi tech Zone torch New Street No. 32 new industry incubator 1 building 834 room Patentee after: DAQING XUEFU PETROLEUM SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 163316 Daqing science and Technology Development Zone, Heilongjiang province high tech Industrial Park, building A1-2, room 503 Patentee before: Li Fujun |
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| 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: 20170517 |