CN1560431A - Bridge type eccentric water injection stratified pressure testing method - Google Patents
Bridge type eccentric water injection stratified pressure testing method Download PDFInfo
- Publication number
- CN1560431A CN1560431A CNA2004100061694A CN200410006169A CN1560431A CN 1560431 A CN1560431 A CN 1560431A CN A2004100061694 A CNA2004100061694 A CN A2004100061694A CN 200410006169 A CN200410006169 A CN 200410006169A CN 1560431 A CN1560431 A CN 1560431A
- Authority
- CN
- China
- Prior art keywords
- pressure
- liquid
- type eccentric
- seal section
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000013500 data storage Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 14
- 239000010985 leather Substances 0.000 claims description 13
- 238000009530 blood pressure measurement Methods 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract 2
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a bridge type eccentric water injection stratified pressure testing method. The problems of single pressure value and poor accuracy measured by the existing pressure testing method are solved. The method is characterized in that: a double-leather-cup lifting type pressure measuring sealing section (2) is arranged in a bridge type eccentric water distributor (1), a pressure gauge (3) with upper and lower pressure channels (4 and 8) is arranged on a current collector (6) of the sealing section (2) corresponding to a liquid inlet hole (7), pressure sensors connected with a data storage device are arranged on the upper and lower pressure channels (4 and 8), and the pressure values of the upper and lower pressure channels (4 and 8) can be measured through the pressure sensors. The pressure sensor has the characteristics of simultaneously measuring the bidirectional pressure and accurately measuring data, and has high working efficiency.
Description
Technical field:
The present invention relates to water injection well in oil fields zonal pressure method of testing, particularly bridge-type eccentric water filling zonal pressure method of testing.
Background technology:
For the oil field of waterflooding extraction, the pressure of understanding each water filling interval is very important full and accurately, the height of water injection well water injection pressure, directly have influence on water filling qualification rate and water-injection efficiency, if water injection pressure is too high, then the bearing capacity of sleeve pipe, cement sheath is excessive, if water injection pressure is too low, then can not guarantee finishing of injection allocation amount, and same well, the pressure of each interval is also inequality, therefore, doing the monitoring of water injection well zonal pressure well, is the key that guarantees the injection allocation amount and regulate balanced flood.
In the at present used eccentric center water-distributing water-filling method when delaminating pressure testing, need blanking plug is pulled out from the inclined to one side hole of injection well downhole flow regulator, and then be lowered to the pressure gauge that has blanking plug and test, because reaching again seat, the fluctuation of the water injection pressure in the pulling process goes into not tight problem, the formation pressure data that records is inaccurate, makes test data untrue; After using the bridge-type eccentric water filling instead, the Chinese patent patent No. is that 01260125.X discloses a kind of testing seal section and the injection well downhole flow regulator seating nipple is taked in the interference fit lower going-into-well, this testing seal section G.I.H is difficulty relatively, under the condition of bridge-type eccentric injection well downhole flow regulator inner passage fouling, more difficult down to the precalculated position, and the testing seal section leather cup is easily scratched, and cause pressure measurement to be failed, its measured pressure can only singlely record the pressure of liquid in the stratum simultaneously, can not record the pressure of liquid in the oil pipe simultaneously, under the situation that leather cup lost efficacy, institute's measuring pressure is not a strata pressure, does not reach test purpose.
Summary of the invention:
In order to overcome the deficiency of the single and poor accuracy of force value that existing method for testing pressure records, the invention provides a kind of bridge-type eccentric water filling zonal pressure method of testing, use this method can record strata pressure and oil pipe internal pressure simultaneously, have and record bidirection press and test data characteristic of accurate, high efficiency simultaneously.
Technical scheme of the present invention is: a kind of bridge-type eccentric water filling zonal pressure method of testing comprises bridge-type eccentric water filling zonal pressure testing arrangement, and a, elder generation are connected to two pressure channel pressure gauges on the collector of hanging pressure measurement seal section; The liquid that b, the liquid that seal section is positioned to join under the effect of external force enter by two inlet openings makes the further expanding of leather cup, until the flow channels in the middle of the eccentric injection mandrel is sealed fully; D, manometric downforce passage recorded the pressure of liquid in the stratum by pressure sensor, and the upward pressure passage can record the pressure of liquid in the oil pipe by pressure sensor; The data of e, two pressure sensor collections are stored by data storage, show pressure data and test curve figure by computer software; F, when the curvilinear figure that fluid pressure reacted of pressure channel is identical up and down, illustrate that what record is not strata pressure, when the figure that fluid pressure reacted of pressure channel up and down not simultaneously, illustrate that the pressure that pressure gauge downforce passage records is real strata pressure.
The beneficial effect that the present invention has is: owing to use this method of testing is to pack two pressure channel pressure gauges into also down to place, bridge-type eccentric injection well downhole flow regulator location, down-hole in the hanging testing seal section, and two leather cups on the hanging testing seal section are isolated with the strata pressure and the oil pipe internal pressure of this interval; The downforce passage of hanging pressure measurement seal section inner gauge writes down the strata pressure of this interval, and the pressure of upward pressure passage record then is the pressure in the oil pipe, and the zonal pressure that records by this method is real strata pressure.
Description of drawings:
Fig. 1 is a structure sectional view of the present invention;
Fig. 2 is the structure sectional view of seal section 2 among Fig. 1;
Fig. 3 is the partial sectional view of pressure gauge 3 among Fig. 1;
Fig. 4 is the pressure test curve map of Bei2-3-431Jing in the specific embodiment of the invention;
Fig. 5 is the pressure test curve map of Bei2-1-428Jing in the specific embodiment of the invention;
Fig. 6 is the pressure test curve map of Bei2-3-430Jing in the specific embodiment of the invention.
1-injection well downhole flow regulator among the figure, 2-pressure measurement seal section, 3-pressure gauge, 4-upward pressure passage, 5-leather cup, 6-collector, 7-inlet opening, 8-downforce passage, 9-leather cup, 10-inlet opening, A-are fluid pressure curve in the oil pipe, fluid pressure curve in the B-stratum.
The specific embodiment:
Below in conjunction with accompanying drawing will the invention will be further described:
As shown in FIG., this bridge-type eccentric water filling zonal pressure testing arrangement comprises bridge-type eccentric injection well downhole flow regulator 1, double leather cup hanging pressure measurement seal section 2, two pressure channel pressure gauges 3, bridge-type eccentric injection well downhole flow regulator 1 is built-in with double leather cup hanging pressure measurement seal section 2, and two leather cups on the hanging testing seal section are isolated with the strata pressure and the oil pipe internal pressure of this interval; Corresponding inlet opening 7 places are equipped with band pressure channel (4 up and down on the collector 6 of seal section 2,8) pressure gauge 3, pressure channel (4 up and down, 8) locate to be equipped with the pressure sensor that links to each other with data storage, the upward pressure passage 4 of pressure gauge 3 can record the pressure of liquid in the oil pipe by pressure sensor, and downforce passage 8 recorded the pressure of liquid in the stratum by pressure sensor.
Use the method for said apparatus formation testing pressure to realize by following steps, a, elder generation are connected to two pressure channel pressure gauges 3 on the collector 6 of hanging pressure measurement seal section 2; B, under the effect of external force seal section 2 is being positioned on the inwall of injection well downhole flow regulator 1 seating nipple, (5,9 open leather cup; When c, injection liquid, the liquid that the liquid at seal section two ends about in the of 2 enters by inlet opening (7,10) makes further expanding of leather cup (5,9), seals fully until the flow channels with eccentric injection mandrel 1; The downforce passage 8 of d, pressure gauge 3 recorded the pressure of liquid in the stratum by pressure sensor, and upward pressure passage 4 can record the pressure of liquid in the oil pipe by pressure sensor; The data of e, two pressure sensor collections are stored by data storage, show pressure data and test curve figure by computer software; F, pressure channel (4 up and down, when the curvilinear figure that fluid pressure reacted 8) is identical, illustrate that what record is not strata pressure, when pressure channel (4 up and down, 8) the figure that fluid pressure reacted is not simultaneously, illustrate that the pressure that the downforce passage 8 of pressure gauge 3 records is real strata pressure, adorn two pressure sensors in this pressure gauge 3, adopt circuit kit, the two-way pressure signal is gathered fully synchronously, during playback of data, the two-way pressure curve is on a graphical interfaces, computer software just can be discerned the judgement test result automatically, if two-way pressure is identical or tracing pattern is in full accord, test crash is described then, otherwise, from the data that the downforce passage is read, be exactly the zonal pressure of this interval, the zonal pressure that records by this method is real strata pressure.
Embodiment 1, northern 2-3-431 are the bridge-type eccentric separate water injection well, use this device and method to carry out the zonal pressure test at this well on October 8th, 2003, this well is divided into four intervals, getting the test data of fourth stage bridge-type eccentric injection well downhole flow regulator interval analyzes, see Table one and Fig. 4, because two curve A, the force value on the B is different with tracing pattern, and the measured pressure of illustrative graph B is strata pressure.
Table one: northern 2-3-431 time--pressure meter
| Time (time) | 0 | ?10 | ?20 | ?30 | ?40 | ?50 | ?60 | ?70 | ?80 | ?90 |
| Fluid pressure (MPa) in the oil pipe | 17.2 | ?17 | ?16.8 | ?16.9 | ?16.8 | ?16.9 | ?16.8 | ?16.8 | ?16.8 | ?16.8 |
| Fluid pressure in the stratum (MPa) | 17.2 | ?14.2 | ?14.1 | ?14 | ?14 | ?14 | ?14 | ?14 | ?14 | ?14 |
Table two: northern 2-1-428 time--pressure meter
| Time (time) | 0 | ?10 | ?20 | ?30 | ?40 | ?50 | ?60 | ?70 | ?80 | ?90 |
| Fluid pressure (MPa) in the | 20 | ?19 | ?18.8 | ?18.8 | ?18.6 | ?18.4 | ?18.4 | ?18.4 | ?18.4 | ?18.4 |
| Fluid pressure in the stratum (MPa) | 18 | ?15.8 | ?15.8 | ?15 | ?15 | ?14.8 | ?14.8 | ?14.8 | ?14.8 | ?14.8 |
Table three: northern 2-3-430 time--pressure meter
| Time (time) | 0 | ?10 | ?20 | ?30 | ?40 | ?50 | ?60 | ?70 | ?80 | ?90 |
| Fluid pressure (MPa) in the | 20 | ?19.4 | ?19.4 | ?19.3 | ?19.2 | ?19 | ?18.8 | ?18. | ?17.8 | ?17.5 |
| Fluid pressure in the stratum (MPa) | 20 | ?19.2 | ?19.2 | ?19.1 | ?18.9 | ?18.8 | ?18.8 | ?18. | ?17.8 | ?17.5 |
Owing to use this device and method, can record the pressure of liquid in oil pipe and the stratum simultaneously, can truly record strata pressure, easy to use, test number is accurate, high efficiency.
Claims (1)
1, a kind of bridge-type eccentric water filling zonal pressure method of testing comprises bridge-type eccentric water filling zonal pressure testing arrangement, it is characterized in that: a, elder generation are connected to two pressure channel pressure gauges (3) on the collector (6) of hanging pressure measurement seal section (2); B, under the effect of external force seal section (2) is being positioned on the inwall of injection well downhole flow regulator (1) seating nipple leather cup (5) spreading; C, when injecting liquid, seal section (2) liquid that enters by inlet opening (7,10) of the liquid at two ends up and down makes further expanding of leather cup (5,9), seals fully until the flow channels with eccentric injection mandrel (1); The downforce passage (8) of d, pressure gauge (3) recorded the pressure of liquid in the stratum by pressure sensor, and upward pressure passage (4) can record the pressure of liquid in the oil pipe by pressure sensor; The data of e, two pressure sensor collections are stored by data storage, show pressure data and test curve figure by computer software; F, pressure channel (4 up and down, when the curvilinear figure that fluid pressure reacted 8) is identical, illustrate that what record is not strata pressure, when pressure channel (4 up and down, 8) the figure that fluid pressure reacted illustrates that the pressure that pressure gauge (3) downforce passage (8) records is real strata pressure not simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100061694A CN1560431A (en) | 2004-03-05 | 2004-03-05 | Bridge type eccentric water injection stratified pressure testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100061694A CN1560431A (en) | 2004-03-05 | 2004-03-05 | Bridge type eccentric water injection stratified pressure testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1560431A true CN1560431A (en) | 2005-01-05 |
Family
ID=34439725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100061694A Pending CN1560431A (en) | 2004-03-05 | 2004-03-05 | Bridge type eccentric water injection stratified pressure testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1560431A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397905B (en) * | 2008-10-23 | 2011-12-28 | 大庆油田有限责任公司 | Stratified static pressure combination tool for water injection well |
| CN102425405A (en) * | 2011-09-23 | 2012-04-25 | 武汉市欧赛石油技术开发有限公司 | Stratified pressure testing method of eccentric water distribution well in oilfield |
| CN103541700A (en) * | 2013-10-21 | 2014-01-29 | 康庆刚 | Reverse seal type eccentric water distributor |
| CN104453860A (en) * | 2014-10-30 | 2015-03-25 | 贵州航天凯山石油仪器有限公司 | Sealing detecting method and device of water injection well packer |
| CN105649611A (en) * | 2016-02-26 | 2016-06-08 | 中国石油天然气股份有限公司 | Concentric electric layered pressure drop testing instrument and testing method thereof |
| CN108590604A (en) * | 2018-05-23 | 2018-09-28 | 四川省科学城久利电子有限责任公司 | It is a kind of to set structure without the afflux of bridge eccentric injection mandrel for the small flow in oil field |
-
2004
- 2004-03-05 CN CNA2004100061694A patent/CN1560431A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397905B (en) * | 2008-10-23 | 2011-12-28 | 大庆油田有限责任公司 | Stratified static pressure combination tool for water injection well |
| CN102425405A (en) * | 2011-09-23 | 2012-04-25 | 武汉市欧赛石油技术开发有限公司 | Stratified pressure testing method of eccentric water distribution well in oilfield |
| CN102425405B (en) * | 2011-09-23 | 2014-03-19 | 武汉市欧赛石油技术开发有限公司 | Stratified pressure testing method of eccentric water distribution well in oilfield |
| CN103541700A (en) * | 2013-10-21 | 2014-01-29 | 康庆刚 | Reverse seal type eccentric water distributor |
| CN103541700B (en) * | 2013-10-21 | 2015-10-28 | 康庆刚 | Reverse sealed eccentric injection mandrel |
| CN104453860A (en) * | 2014-10-30 | 2015-03-25 | 贵州航天凯山石油仪器有限公司 | Sealing detecting method and device of water injection well packer |
| CN105649611A (en) * | 2016-02-26 | 2016-06-08 | 中国石油天然气股份有限公司 | Concentric electric layered pressure drop testing instrument and testing method thereof |
| CN108590604A (en) * | 2018-05-23 | 2018-09-28 | 四川省科学城久利电子有限责任公司 | It is a kind of to set structure without the afflux of bridge eccentric injection mandrel for the small flow in oil field |
| CN108590604B (en) * | 2018-05-23 | 2021-03-02 | 四川省科学城久利电子有限责任公司 | Flow-collecting setting structure for small-flow bridge-free eccentric water distributor of oil field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102953726B (en) | Method and device for water drive oilfield advantage channel recognition | |
| CN109342150A (en) | A kind of experimental rig and method for gassiness soil sample consolidation test and permeability test | |
| CN108104801A (en) | Horizontal well tracer liquid production profile testing pipe column and method | |
| CN103148888A (en) | High temperature and high pressure drainage dynamic evaluation system for coal bed and gas reservoir double-layer commingled production | |
| CN104594889B (en) | A kind of Accurate Determining oil well remaining oil preserves the devices and methods therefor of position | |
| CN1560431A (en) | Bridge type eccentric water injection stratified pressure testing method | |
| CN103334746A (en) | Probe of FDT (Formation Dynamic Test) module type formation tester | |
| CN209327074U (en) | A kind of experimental rig for gassiness soil sample consolidation test and permeability test | |
| CN202031570U (en) | Plugging-type pressure differential flowmeter | |
| CN110456022A (en) | A kind of dynamic monitoring coal seam reservoirs sensibility and mining control simulation experiment system | |
| CN1818334A (en) | Synchronizing flow seal-verification testing method and tester thereof | |
| CN200971780Y (en) | Measuring instrument for packer of water injection well | |
| CN2451735Y (en) | Capillary tube pressure monitoring pressure transmission cylinder in well | |
| CN2479211Y (en) | Water finding pipe string | |
| CN2667156Y (en) | Eccentric water distributor and its detectable flow sealed measurement sealing section | |
| CN2775299Y (en) | Synchronous flow checking seal detector | |
| Ehlig-Economides | Testing and Interpretation in Layered Reservoirs | |
| CN116577091A (en) | Pressure testing device for underground testing tool of oil field | |
| CN104215405A (en) | Seal checking method and seal checking tool for packer of layered water injection well | |
| CN2637728Y (en) | Thick oil hot pump well high temperature multi parameter testing instrument | |
| CN201053313Y (en) | Layered six-parameter single-layer synchronous self-controlling testing process tubular column for pumping well | |
| CN201037417Y (en) | Bridge type delamination measuring and sealing structure | |
| CN206114626U (en) | Analogue means is used in drilling process coal reservoir pollution degree test | |
| CN112683746B (en) | Device and method for measuring effective stress conversion rate of slurry film forming | |
| CN205297502U (en) | Digital automatic regulating system for separately-injected cumulative flow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |