CN1038490A - New method for stratified logging ecentric water-distributing well - Google Patents
New method for stratified logging ecentric water-distributing well Download PDFInfo
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- CN1038490A CN1038490A CN89101000A CN89101000A CN1038490A CN 1038490 A CN1038490 A CN 1038490A CN 89101000 A CN89101000 A CN 89101000A CN 89101000 A CN89101000 A CN 89101000A CN 1038490 A CN1038490 A CN 1038490A
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Abstract
Oil field eccentric water distribution pipe column well stratified injection test new method, it is big to be characterized in having overcome former bottom hole float type flowmeter test job amount, qualification rate is low, shortcomings such as test allotment difficulty, dual-purpose test club of eccentric center water-distributing well that employing and eccentric injection mandrel match and ground injection flow meter are realized " lob test ".This instrument is once gone into the well and can be recorded the multilayer data, has overcome the deficiency of former method of testing, has developed the advantage that eccentric water distribution pipe column is not limited by progression, and technology is simple, and is easy to operate, reduces labour intensity, increases work efficiency.
Description
The present invention relates to oil field multi-zone flow regulating technology, particularly eccentric center water-distributing well zonal testing technology.
At the water injection well that eccentric water distribution pipe column is arranged down, now adopt bottom hole float type flowmeter and surveyed each interval water absorption, this technology is because bottom hole float type flowmeter exists in timing, during execute-in-place, maintenance, the down-hole facility damage, water distribution is chewed and is selected factor affecting such as improper, cause and be difficult to record qualified card, add the downhole flowmeter working condition and cannot see, can not touch, make and analyze variation of oil reservoir water absorption and down-hole facility working condition, the choose reasonable water distribution work such as is chewed and can't be proceeded, and makes the test job amount increase.
The water yield that bottom hole float type flowmeter is surveyed is the moment flow, with moment flow calculate every day, it is not bad under the stable case that each water injection rate of interval in per season, water injection pressure keep, and changes as water injection pressure, each oil layer section water injection rate of then extrapolating is inaccurate.
Shortcomings such as it is big to the objective of the invention is to overcome bottom hole float type flowmeter test job amount, and qualification rate is low provide a kind of technology simple, and are easy to operate, can improve the test passes rate to make the long-term stable yields in oil field the test new method of high yield.
The present invention realizes like this, the eccentric center water-distributing well uses ground injection flow meter (water meter) instead by the bottom hole float type flowmeter test and " the dual-purpose test club of eccentric center water-distributing well " (the utility model patent explanation of application is on the same day arranged in addition) matched and surveyed each oil layer section water absorption, realizes " lob " test.
Below in conjunction with accompanying drawing the present invention is described in further detail:
Accompanying drawing 1 is the schematic diagram that eccentric center water-distributing well casing rod structure of the present invention is surveyed the layered absorbent metering method, by eccentric injection mandrel (1), blanking plug (2), packer (3), oil reservoir (4), shelves ball pipe nipple (5), ball and ball seat (6), oil pipe (7), sleeve pipe (8), steel wire for logging (9), the dual-purpose test club compositions such as (10) of eccentric center water-distributing well.
With reference to accompanying drawing 1, with and eccentric injection mandrel (1) " the dual-purpose test club of eccentric center water-distributing well " (10) and ground injection flow meter (water meter) of matching finish, survey full well suction indicative curve earlier, full well indicative curve generally will be surveyed 3-4 point, it is descending control water injection pressure, measure 3-4 the water injection rate under the different pressures, use steel wire for logging (9) to carry on descending after next stage injection well downhole flow regulator (1) the 3-5 rice with " the dual-purpose test club of eccentric center water-distributing well " (10) then, after proposing next stage eccentric injection mandrel (1), transfer again " the dual-purpose test club of eccentric center water-distributing well " (10) seat is gone in the injection well downhole flow regulator (1), amplify water filling, after treating that the water yield is stable, measure four water injection rates with full well corresponding pressure point equally, go in the penultimate stage injection well downhole flow regulator (1) carrying again seat on " the dual-purpose test club of eccentric center water-distributing well " (10) after having surveyed, press last program until till having surveyed.
Method of testing is to adopt " water yield successively decrease algorithm for inversion " to ask each oil reservoir (4) section water absorption, and an oil reservoir of every survey (4) section just blocks tested oil reservoir (4) section and following each oil reservoir (4) section.The water yield of ground injection flow meter (water meter) reflection is the water yield of above each interval of this oil reservoir that is blocked (4) section, the flow of ground injection flow meter (water meter) reflection is only from the water absorption of last several first oil reservoirs (4) section when surveying afterbody, the contrary then reading of calculating ground injection flow meter (water meter), can calculate the true water absorption of all oil reservoirs (4) ' section, carry out data to arrange again, draw the work such as actual measurement suction indicative curve of each oil reservoir (4) section.
Test new method of the present invention also can adopt throws blanking plug (2) (blanking plug feign death water chew) a certain oil reservoir of shutoff (4) section, the water yield that ground injection flow meter (water meter) is reflected is the Total Water of other oil reservoir (4) section, deduct other each oil reservoir (4) section Total Water with full well water amount, just can draw the water absorption of the oil reservoir that is blocked (4) section, change oil reservoir (4) section that is blocked in proper order, even if obtain the water absorption of each oil reservoir (4) section, the suction indicative curve of surveying full well and each oil reservoir (4) section is identical with above-mentioned method, data that this method of testing is got is specially adapted to the eccentric center water-distributing well of 2-3 level accurately and reliably.
This new method for stratified logging ecentric water-distributing well overcomes the deficiency of former method of testing, has realized doing in the eccentric water distribution pipe column well " lob " test, and the test job amount is greatly reduced, and layering water distribution qualification rate rises, and the oil field keeps high yield, stable yields for a long time.
Claims (4)
1, eccentric water distribution pipe column well surveying method for testing is characterized in that using ground injection flow meter (water meter) and down-hole reservoir plugging (4) instead by bottom hole float type flowmeter test section combines and to test,
A. the dual-purpose test club of ground injection flow meter (water meter) and eccentric center water-distributing well (10) matches and carries out " lob " test.
B. ground injection flow meter (water meter) and down-hole are thrown blanking plug (2) (blanking plug feign death water nozzle) a certain oil reservoir of shutoff (4) section and are matched and test.
2, eccentric center water-distributing well surveying method for testing according to claim 1 is characterized in that dual-purpose test club of eccentric center water-distributing well (10) and down-hole eccentric injection mandrel (1) match, and realizes shutoff be blocked oil reservoir (4) section and following oil reservoir (4) section.
3, eccentric center water-distributing well surveying method for testing according to claim 2, it is characterized in that surveying earlier full well suction indicative curve, full well indicative curve will be surveyed 3-4 point, it is descending control water injection pressure, measure 3-4 the water injection rate under the different pressures, use steel wire for logging (9) on the dual-purpose test club of eccentric center water-distributing well (10) is after next stage injection well downhole flow regulator (1) the 3-5 rice, to carry then, transfer again its seat is gone in this injection well downhole flow regulator (1), stopped up this oil reservoir (4) section, amplify water filling, after treating that the water yield is stable, measure four water injection rates with full well corresponding pressure point equally, surveyed the back on carry make the dual-purpose test club of eccentric center water-distributing well (10) again the seat go in the penultimate stage injection well downhole flow regulator (C), by last program until surveyed till.
4, eccentric center water-distributing well surveying method for testing according to claim 1, it is characterized in that throwing blanking plug (2) (blanking plug feign death water nozzle) a certain oil reservoir of shutoff (4) section, the water yield that ground injection flow meter (water meter) is reflected is the Total Water of other oil reservoir (4) section, deduct other oil reservoir (4) section Total Water with full well water amount, just can mark the water absorption of the oil reservoir that is blocked (4) section, change oil reservoir (4) section that is blocked successively, even if obtain the water absorption of all oil reservoirs (4) section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89101000A CN1038490A (en) | 1989-02-23 | 1989-02-23 | New method for stratified logging ecentric water-distributing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89101000A CN1038490A (en) | 1989-02-23 | 1989-02-23 | New method for stratified logging ecentric water-distributing well |
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| Publication Number | Publication Date |
|---|---|
| CN1038490A true CN1038490A (en) | 1990-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89101000A Pending CN1038490A (en) | 1989-02-23 | 1989-02-23 | New method for stratified logging ecentric water-distributing well |
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| CN (1) | CN1038490A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042848C (en) * | 1993-11-16 | 1999-04-07 | 大庆石油管理局采油工艺研究所 | Temporary plugging technique for injection distribution working construction of oil field |
| CN101878350A (en) * | 2007-11-30 | 2010-11-03 | 普拉德研究及开发股份有限公司 | Downhole, single trip, multi-zone testing system and downhole testing method using such |
| CN104989340A (en) * | 2015-06-17 | 2015-10-21 | 成都高普石油工程技术有限公司 | Oil well water injection oil extraction method |
| CN109846795A (en) * | 2019-01-30 | 2019-06-07 | 广州诗美化妆品有限公司 | A kind of Oat Oil Extract and the preparation method and application thereof with reparation skin barrier |
-
1989
- 1989-02-23 CN CN89101000A patent/CN1038490A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042848C (en) * | 1993-11-16 | 1999-04-07 | 大庆石油管理局采油工艺研究所 | Temporary plugging technique for injection distribution working construction of oil field |
| CN101878350A (en) * | 2007-11-30 | 2010-11-03 | 普拉德研究及开发股份有限公司 | Downhole, single trip, multi-zone testing system and downhole testing method using such |
| CN101878350B (en) * | 2007-11-30 | 2015-03-11 | 普拉德研究及开发股份有限公司 | Downhole, single trip, multi-zone testing system and downhole testing method using such |
| CN104989340A (en) * | 2015-06-17 | 2015-10-21 | 成都高普石油工程技术有限公司 | Oil well water injection oil extraction method |
| CN109846795A (en) * | 2019-01-30 | 2019-06-07 | 广州诗美化妆品有限公司 | A kind of Oat Oil Extract and the preparation method and application thereof with reparation skin barrier |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |