CN105019884A - Screen pipe horizontal well production profile testing apparatus and testing method for same - Google Patents
Screen pipe horizontal well production profile testing apparatus and testing method for same Download PDFInfo
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- CN105019884A CN105019884A CN201410168534.5A CN201410168534A CN105019884A CN 105019884 A CN105019884 A CN 105019884A CN 201410168534 A CN201410168534 A CN 201410168534A CN 105019884 A CN105019884 A CN 105019884A
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Abstract
A screen pipe horizontal well production profile testing apparatus and a testing method for the same are provided to overcome defects of difficulty of instrument loading, high testing cost and large construction risk of horizontal production profile testing technology for a screen pipe completion well in the prior art. In the screen casing horizontal well production profile testing apparatus, a releasing device (I), a releasing device (II) and a releasing device (III) are orderly fixedly connected via screen pipes; tracer agent is respectively disposed in the three releasing devices; during well completion practice, the testing apparatus is connected into a well completion pipe string; the releasing device (I) is arranged on a separation layer between a toe production layer and a middle production layer; the releasing device (II) is arranged on a separation layer between the middle production layer and a heel part production layer; the releasing device (III) is arranged on a separation layer on the back part of the heel part production layer; well completion construction is conducted; after the apparatus is put into practice, gamma-ray spectra analysis is conducted to produced liquid via gamma-ray spectra detection equipment on the ground; and production profiles can be analyzed according to types and feature contents of detected tracer agents.
Description
Technical field
The present invention relates to a kind of production profile testing method of screen casing horizontal well completion, especially relate to a kind of screen casing horizontal well production profile testing arrangement and method of testing thereof.
Background technology
In the horizontal well production operation process of oil and gas development, sieve tube completion is a kind of completion method extensively adopted.But, due to Special Drilling Operation track and the sieve tube completion mode of screen casing horizontal well, cause conventional cable methods and mechanical means to be difficult to carry out production profile test (stratum production fluid situation), become the outstanding difficult problem in work such as producing system formulation, well stimulation layout and steady oil control water.
At present, the horizontal well production profile for sieve tube completion is tested, the horizontal well production test method that many employings " multistage crawl device+multi-parameter wireline logging instrument " are technical characteristic.But the deficiencies such as this technology enters difficulty there is instrument in application process under, testing expense is too high, construction risk is large and applicable hole condition is limited, cannot meet safety, economic, effective screen casing horizontal well production profile test request.
Summary of the invention
Enter difficulty in order under the instrument that the horizontal well production profile measuring technology overcoming existing sieve tube completion exists, testing expense is high, construction risk is large, and applicable hole condition is limited, the deficiency of safety, economic, effective sieve tube completion horizontal well production profile test request cannot be met, the invention provides a kind of screen casing horizontal well production profile testing arrangement and method of testing thereof.
The technical solution adopted for the present invention to solve the technical problems is: screen casing horizontal well production profile testing arrangement, comprise screen casing, (applicant just " releasing device " has applied for patent to releasing device separately, here no longer repeat with regard to the 26S Proteasome Structure and Function of " releasing device "), releasing device I, releasing device II, releasing device III are fixedly connected sequentially by screen casing; Tracer is separately installed with in releasing device I, releasing device II, releasing device III.The tracer installed in releasing device I has water-soluble carrier I and the molten carrier I of oil; The tracer installed in releasing device II has water-soluble carrier II and the molten carrier II of oil; The tracer installed in releasing device III has water-soluble carrier III and the molten carrier III of oil.
Water-soluble carrier I in releasing device I is the compound of chromium-51, and oily molten carrier I is the compound of Iron-59; Water-soluble carrier II in releasing device II is the compound of indium-114, and oily molten carrier II is the compound of tin-113; Water-soluble carrier III in releasing device III is the compound of Rubidium-86, and oily molten carrier III is the compound of scandium-45.
Water-soluble carrier I, water-soluble carrier II, water-soluble carrier III adopt inorganic salts to make with chromium-51, indium-114, Rubidium-86 respectively; The molten carrier I of oil, oily molten carrier II, oily molten carrier III adopt C 5 petroleum resin to make with Iron-59, tin-113, scandium-45 respectively.
Adopt the test jobs method of screen casing horizontal well production profile testing arrangement, the testing well section of horizontal well is spaced apart from front to back, is followed successively by toe payzone, middle part payzone, heel payzone, the steps include:
In A, completion practice, screen casing horizontal well production profile testing arrangement is mounted in completion tubular column, under enter Horizontal Well intraocular, the interlayer of releasing device I between toe payzone and middle part payzone, the interlayer of releasing device II between middle part payzone and heel payzone, releasing device III is positioned at the interlayer at heel payzone rear portion, carries out completion construction operation;
After B, operation, stratum production fluid is through horizontal well well, releasing device to moving uphole, and use gamma spectra checkout equipment to carry out gamma-ray spectrum analysis to Produced Liquid on ground, the Species and characteristics content passing through seized tracer analyzes production profile.
Tracer in different water-soluble carriers and the molten carrier of oil, the dissolving rate of release in the production fluid of stratum is different, relation proportional with the flow velocity of stratum production fluid respectively.
The invention has the beneficial effects as follows, the method entering instrument under adopting sleeve pipe achieves without wireline test, and construction safety, risk are low; The gamma analytical method adopted has sustainable detection, without the need to manual sampling, certainty of measurement high; The connection achieving test and completion is done, and decreases job execution expense.
Accompanying drawing explanation
Fig. 1 is the structural representation of screen casing horizontal well production profile testing arrangement of the present invention.
In figure: 1. heel payzone, payzone 2., 3. toe payzone, 4. releasing device III, 5. water-soluble carrier III, 6. oily molten carrier III, 7. water-soluble carrier II, 8. oily molten carrier II, 9. water-soluble carrier I, 10. oily molten carrier I, 11. screen casings, 12. releasing device II, 13. horizontal well wells, 14. releasing devices I.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.But those skilled in the art should know, the invention is not restricted to listed detailed description of the invention, as long as spirit according to the invention, all should be included in protection scope of the present invention.
See accompanying drawing 1.Screen casing horizontal well production profile testing arrangement of the present invention, comprise screen casing 11, (applicant just " releasing device " has applied for patent to releasing device separately, here no longer repeat with regard to the 26S Proteasome Structure and Function of " releasing device "), releasing device comprises releasing device I 14, releasing device II 12, releasing device III 4, installs the screen casing 11 of suitable length between releasing device I 14, releasing device II 12, releasing device III 4 according to the length of payzone and interlayer in horizontal well well 13.
Different tracers is separately installed with in releasing device I 14, releasing device II 12, releasing device III 4.The tracer installed in releasing device I 14 has water-soluble carrier I 9 and the molten carrier I 10 of oil, and water-soluble carrier I 9 is the compound of chromium-51, and oily molten carrier I 10 is the compound of Iron-59; The tracer installed in releasing device II 12 has water-soluble carrier II 7 and the molten carrier II 8 of oil, and water-soluble carrier II 7 is the compound of indium-114, and oily molten carrier II 8 is the compound of tin-113; The tracer installed in releasing device III 4 has water-soluble carrier III 5 and the molten carrier III 6 of oil, and water-soluble carrier III 5 is the compound of Rubidium-86, and oily molten carrier III 6 is the compound of scandium-45.Wherein, water-soluble carrier I 9, water-soluble carrier II 7, water-soluble carrier III 5 adopt inorganic salts to make with chromium-51, indium-114, Rubidium-86 respectively.The molten carrier I 10 of oil, oily molten carrier II 8, oily molten carrier III 6 adopt C 5 petroleum resin to make with Iron-59, tin-113, scandium-45 respectively.
Releasing device is positioned at pit shaft, and when liquid stream in pit shaft is through releasing device, the water-soluble carrier in releasing device and/or oily molten carrier will flow to well head by fluid.
Adopt the test jobs method of screen casing horizontal well production profile testing arrangement, the testing well section of horizontal well is spaced apart from front to back, is followed successively by toe payzone 3, middle part payzone 2, heel payzone 1, the steps include:
In A, completion practice, screen casing horizontal well production profile testing arrangement is mounted in completion tubular column, under enter Horizontal Well intraocular, the interlayer place of releasing device I 14 between toe payzone 3 and middle part payzone 2, the interlayer place of releasing device II 12 between middle part payzone 2 and heel payzone 1, releasing device III 4 is positioned at the interlayer place at heel payzone 1 rear portion, carries out completion construction operation;
After B, operation, stratum production fluid is through horizontal well well 13, releasing device to moving uphole, and use gamma spectra checkout equipment to carry out gamma-ray spectrum analysis to Produced Liquid on ground, the Species and characteristics content passing through seized tracer analyzes production profile.
The LaBr spectrometer that ground uses gamma spectra checkout equipment that Ai Taike instrument company can be selected to produce.
Different water-soluble carriers is different with the dissolving rate of release of the tracer in the molten carrier of oil in the production fluid of stratum, respectively relation proportional with the flow velocity of stratum production fluid.
Tracer feature content described in step B be the gamma ray of radioactive tracer atom constantly radiation in decay period, and the radiological performance spectrum signature of different tracer atom is different.The atomic quantity with identical radiation characteristics utilizing gamma spectra checkout equipment to detect is the feature content of tracer.Meanwhile, the decay process of radioactive tracer atom is only relevant with the time, irrelevant with the external condition such as temperature, pressure, magnetic field of the earth, residing form.
In order to further illustrate know-why of the present invention and method of testing, be exemplified below:
After horizontal well well 13 sieve tube completion of test, the interlayer place of releasing device I 14 between toe payzone 3 and middle part payzone 2, the interlayer place of releasing device II 12 between middle part payzone 2 and heel payzone 1, releasing device III 4 is positioned at the interlayer place at heel payzone 1 rear portion, supposes that heel payzone 1 produce oil does not produce water, middle part payzone 2 and toe payzone 3 and goes out without oil and/or aquatic products.
Because middle part payzone 2, toe payzone 3 go out without oil and/or aquatic products, namely toe payzone 3, middle part payzone 2 do not have fluid to moving uphole, releasing device I 14 above toe payzone 3, middle part payzone 2, the tracer in releasing device II 12 cannot be carried to ground, and the corresponding tracer feature content that gamma spectrometric equipment is seized is 0.
Simultaneously because heel payzone 1 produce oil does not produce water, therefore the water-soluble carrier III 5 in the releasing device III laid above heel payzone 1 can not dissolve the water-soluble carrier III 5 of release in the production fluid of stratum, the tracer Rubidium-86 that gamma spectrometric equipment is seized, its feature content is also 0.
Because heel payzone 1 produce oil does not produce water, so the molten carrier III 6 of the oil laid above heel payzone 1 can dissolve release tracer scandium-45 in the production fluid crude oil of stratum, and be carried to ground.By detecting the feature content of tracer scandium-45, (namely oil well carries out in the time period of dynamic production profile test in ground gamma detection, flow through gamma detection instrument and there is the atomic quantity of the same clan of identical radiation characteristics, supposing that the feature content of tracer scandium-45 is 100 in this example).
Heel payzone 1 produce oil based on upper example does not produce the production profile situation that water, middle part payzone 2 and toe payzone 3 go out without oil and/or aquatic products, and ground gamma testing result should be mutually: the chromium-51 of water-soluble carrier, indium-114, Rubidium-86 feature content are 0; Iron-59, tin-113 feature content of the molten carrier of oil are 0; Scandium-45 feature content of the molten carrier of oil is 100.
Means of interpretation:
Be the testing result of 0 according to the tracer chromium-51 of gamma spectrometric equipment, indium-114, Iron-59, tin-113 feature content, in the middle part of illustrating, payzone 2, toe payzone 3 do not have crude oil and water to moving uphole, and in the middle part of judging accordingly, payzone 2, toe payzone 3 go out without oil, aquatic products.
Be the testing result of 0 according to the feature content of tracer Rubidium-86, inquiry tracer placement record, interlayer above tracer Rubidium-86 place heel payzone 1 and carrying for water-soluble carrier III 5, illustrates that heel payzone 1 does not have water to moving uphole, judges the anhydrous output of heel payzone 1 accordingly.
Be the testing result of 100 according to oil molten carrier scandium-45 feature content, inquire about its placement record; Molten carrier scandium-45 cloth of oil is placed on the interlayer above heel payzone 1, and carries for oily molten carrier III 6, illustrates that heel payzone 1 has crude oil to moving uphole, judges that heel payzone 1 has crude oil output accordingly.
In the method for the invention, the releasing device quantity that down-hole lays can according to requirements such as payzone quantity and substratum segmentation tests, adjustment lays quantity, and water-solubility carrier and the oil-soluble carrier of different tracer are carried in corresponding installation, but not three releasing devices be only limitted to listed by the present invention and six kinds of tracers.
Tracer Rubidium-86, scandium-45, indium-114, tin-113, chromium-51, Iron-59 selected in the present invention, be the tracer of pole low-activity, and meet national radioactive material safe handling requirement, its intensity is lower than 10
5bq, can short time manual operations.
The present invention enters the method for screen casing horizontal well production profile testing arrangement under adopting sleeve pipe, without the need to the cooperation of cable and crawl device, achieve without wireline test, ensure that construction operation safety; The gamma analytical method adopted, relative to conventional chemical detection method, has sustainable detection, without the need to manual sampling, certainty of measurement high; Meanwhile, the connection that present invention achieves test and completion is done, and not disturbing completion to construct, without the need to tripping out releasing device, decreasing job execution expense.
It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiment and not depart from the right of this patent.
Claims (5)
1. a screen casing horizontal well production profile testing arrangement, comprise screen casing, it is characterized in that: releasing device I (14), releasing device II (12), releasing device III (4) are fixedly connected sequentially by described screen casing (11); Tracer is separately installed with in releasing device I (14), releasing device II (12), releasing device III (4);
The tracer installed in described releasing device I (14) has water-soluble carrier I (9) and the molten carrier I (10) of oil; The tracer installed in described releasing device II (12) has water-soluble carrier II (7) and the molten carrier II (8) of oil; The tracer installed in described releasing device III (4) has water-soluble carrier III (5) and the molten carrier III (6) of oil.
2. screen casing horizontal well production profile testing arrangement according to claim 1, it is characterized in that: the compound that the water-soluble carrier I (9) in described releasing device I (14) is chromium-51, the compound that oily molten carrier I (10) is Iron-59; The compound that water-soluble carrier II (7) in described releasing device II (12) is indium-114, the compound that oily molten carrier II (8) is tin-113; The compound that water-soluble carrier III (5) in described releasing device III (4) is Rubidium-86, the compound that oily molten carrier III (6) is scandium-45.
3. screen casing horizontal well production profile testing arrangement according to claim 2, is characterized in that:
Described water-soluble carrier I (9), water-soluble carrier II (7), water-soluble carrier III (5) adopt inorganic salts to make with chromium-51, indium-114, Rubidium-86 respectively;
The molten carrier of described oil I (10), oily molten carrier II (8), oily molten carrier III (6) adopt C 5 petroleum resin to make with Iron-59, tin-113, scandium-45 respectively.
4. adopt a test jobs method for testing arrangement described in claim 1, the testing well section A-P of horizontal well is spaced apart, is followed successively by toe payzone, middle part payzone, heel payzone, the steps include:
In A, completion practice, testing arrangement described in claim 1 is mounted in completion tubular column, under enter Horizontal Well intraocular, releasing device I (14) is positioned at the interlayer between toe payzone (3) and middle part payzone (2), releasing device II (12) is positioned at the interlayer between middle part payzone (2) and heel payzone (1), releasing device III (4) is positioned at the interlayer at heel payzone (1) rear portion, carries out completion construction operation;
After B, operation, stratum production fluid flows through releasing device to moving uphole at Horizontal Well intraocular, use gamma spectra checkout equipment to carry out gamma-ray spectrum analysis to the Produced Liquid of well head on ground, the Species and characteristics content passing through seized tracer analyzes production profile.
5. test jobs method according to claim 4, is characterized in that: different described water-soluble carriers is different with the dissolving rate of release of the tracer in the molten carrier of oil in the production fluid of stratum, respectively relation proportional with the flow velocity of stratum production fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168534.5A CN105019884A (en) | 2014-04-25 | 2014-04-25 | Screen pipe horizontal well production profile testing apparatus and testing method for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168534.5A CN105019884A (en) | 2014-04-25 | 2014-04-25 | Screen pipe horizontal well production profile testing apparatus and testing method for same |
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| CN201410168534.5A Pending CN105019884A (en) | 2014-04-25 | 2014-04-25 | Screen pipe horizontal well production profile testing apparatus and testing method for same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108104801A (en) * | 2017-12-30 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of horizontal well tracer producing profile testing tubing string and method |
| CN109162706A (en) * | 2018-11-06 | 2019-01-08 | 西安石油大学 | A kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method |
| CN110230489A (en) * | 2018-03-05 | 2019-09-13 | 中国石油化工股份有限公司 | A kind of multistage pressure break horizontal well produced fluid cross section device and method |
| CN113047826A (en) * | 2021-04-13 | 2021-06-29 | 西南石油大学 | Intelligent releasable tracer production profile test experimental device and method |
| CN114458284A (en) * | 2020-10-30 | 2022-05-10 | 中国石油天然气股份有限公司 | Release device, screen pipe column and production section testing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108104801A (en) * | 2017-12-30 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of horizontal well tracer producing profile testing tubing string and method |
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| CN109162706A (en) * | 2018-11-06 | 2019-01-08 | 西安石油大学 | A kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method |
| CN114458284A (en) * | 2020-10-30 | 2022-05-10 | 中国石油天然气股份有限公司 | Release device, screen pipe column and production section testing method |
| CN113047826A (en) * | 2021-04-13 | 2021-06-29 | 西南石油大学 | Intelligent releasable tracer production profile test experimental device and method |
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