CN109372486B - Simulation test system and method for toe end sliding sleeve - Google Patents
Simulation test system and method for toe end sliding sleeve Download PDFInfo
- Publication number
- CN109372486B CN109372486B CN201811432604.8A CN201811432604A CN109372486B CN 109372486 B CN109372486 B CN 109372486B CN 201811432604 A CN201811432604 A CN 201811432604A CN 109372486 B CN109372486 B CN 109372486B
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- sliding sleeve
- sleeve
- toe end
- end sliding
- pressure
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- 238000012360 testing method Methods 0.000 title claims abstract description 91
- 238000004088 simulation Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 238000010998 test method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003345 natural gas Substances 0.000 abstract description 5
- 239000003209 petroleum derivative Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a simulation test system and a simulation test method for a toe end sliding sleeve, and relates to the field of petroleum and natural gas exploration and development; the system comprises a sleeve, a toe end sliding sleeve, an upper annular blocking ring, a lower annular blocking ring, an annular space formed by the upper annular blocking ring, a lower pressure testing plug, an upper flange, a lower blocking plug, an upper flange and a lower flange, wherein the toe end sliding sleeve is placed in the sleeve, the lower annular blocking ring is sleeved at the lower part in an annular space formed by the toe end sliding sleeve and the sleeve, the upper blocking head and the lower blocking head are respectively arranged in the toe end sliding sleeve, and the upper flange and the lower flange block the two ends of the sleeve. The toe end sliding sleeve opening test device is mainly used for testing and testing the toe end sliding sleeve under the underground environment condition, can simulate the underground high-temperature and high-pressure environment and test the opening performance of the toe end sliding sleeve under the condition that the toe end sliding sleeve is solidified by well cementing cement paste, and provides a basis for further optimizing the design of the toe end sliding sleeve tool, so that the on-site use success rate of the toe end sliding sleeve tool is improved, well cementation accidents are reduced, and loss in the petroleum and natural gas exploitation process is reduced.
Description
Technical Field
The invention relates to the field of petroleum and natural gas exploration and development, in particular to a simulation test system and method for a toe end sliding sleeve.
Background
Aiming at the technical problems that after the well cementation operation of a long horizontal well, working tools such as a logging instrument, a perforating gun and the like are difficult to be put into the bottom of the well, the effective horizontal section length of the long horizontal well cannot be ensured, the first-stage perforation is difficult to be put into by using a continuous oil pipe in the well completion fracturing process, the cost is high, the risk is high and the like, toe end sliding sleeve tools such as a toe end sliding sleeve (201820152248.3) capable of being tested, a well cementation sleeve of the horizontal well, a well cementation quality measuring method (201410817709.0) and the like are developed. At present, the detection means for the underground working state of the tools are limited, the detection indexes are few, the cost is high, and no test tool or equipment for simulating the underground working condition is specially used for the toe end sliding sleeve.
Disclosure of Invention
The invention aims to provide a simulation test system for a toe end sliding sleeve, so as to solve the problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a simulation test system of a toe end sliding sleeve comprises a sleeve, a toe end sliding sleeve, an upper annular plugging ring, a lower annular plugging ring and annular spaces formed by the upper annular plugging ring and the lower annular plugging ring, an upper pressure testing plug, a lower plugging plug, an upper flange and a lower flange, wherein the toe end sliding sleeve is placed in the sleeve, the lower annular plugging ring is sleeved at the lower part in an annular space formed by the toe end sliding sleeve and the sleeve, the upper plugging head and the lower plugging head are respectively arranged in the toe end sliding sleeve, and the upper flange and the lower flange are used for plugging the two ends of the sleeve.
Preferably, the system further comprises a backing ring, bolts and compression nuts, wherein the bolts penetrate through the upper flange and the lower flange and are used for tightening the upper flange and the lower flange by the compression nuts, and the backing ring is padded at the lower end of the lower annular plugging ring.
Preferably, the center of the upper flange is provided with a through hole for connecting the pressure test pipeline connector with the upper pressure test plug.
Preferably, the simulation test system further comprises a heating device and a pressurizing device, the heating device is installed on the outer side of the sleeve, the pressurizing device comprises two pressure test pumps and a pressure test line, the first pressure test pump is connected to the pressure test hole on the sleeve through the pressure test line, and the second pressure test pump is connected to the upper pressure test plug by the aid of the pressure test line through a through hole on the upper flange.
Preferably, the heating means may be a heating band or a heating jacket covering the sleeve.
Preferably, sealing ring grooves are processed on the inner side and the outer side of the upper annular sealing ring and the lower annular sealing ring, and sealing rings are installed on the sealing ring grooves.
The invention further provides a simulation test method of the toe end sliding sleeve, which comprises the following steps of:
s1, loading a toe end sliding sleeve into a sleeve, installing a lower plug in the lower end of the toe end sliding sleeve, and sleeving a lower annular blocking ring on the lower part of an annular space formed by the toe end sliding sleeve and the sleeve;
s2, cement slurry is injected into the upper part of the annular space, meanwhile, clear water is fully injected into the toe end sliding sleeve, and a heating device outside the sleeve is turned on, so that the sleeve is heated to a preset temperature according to requirements;
s3, respectively installing an upper pressure test plug and an upper annular space plugging ring at the upper part in the toe end sliding sleeve and the upper part of an annular space formed by the toe end sliding sleeve and the sleeve, and padding the backing ring at the lower end of the lower annular space plugging ring;
s4, sealing the two ends of the sleeve by the upper flange and the lower flange;
s5, connecting the first pressure testing pump with the sleeve, the second pressure testing pump with the upper pressure testing plug respectively through a pressure testing pipeline, and starting the two pressure testing pumps to enable the pressure to reach the actual pressure on site, so that the pressure is kept stable;
and S6, when the cement strength reaches the requirement after the cement is solidified, opening a second pressure testing pump, raising the pressure according to the requirement until the sliding sleeve is opened, recording the pressure value, and completing the test.
Preferably, step S4 is specifically: the upper flange and the lower flange are respectively arranged at the upper end and the lower end of the sleeve, and the flanges are fastened and fixed through bolts and compression nuts.
The beneficial effects of the invention are as follows:
the invention provides a toe end sliding sleeve test system and a toe end sliding sleeve test method for simulating an on-site use environment. The toe end sliding sleeve opening test device is mainly used for testing and testing the toe end sliding sleeve under the underground environment condition, can simulate the underground high-temperature and high-pressure environment and test the opening performance of the toe end sliding sleeve under the condition that the toe end sliding sleeve is solidified by well cementing cement paste, and provides a basis for further optimizing the design of the toe end sliding sleeve tool, so that the on-site use success rate of the toe end sliding sleeve tool is improved, well cementation accidents are reduced, and loss in the petroleum and natural gas exploitation process is reduced.
Drawings
FIG. 1 is a block diagram of an analog test system in an embodiment of the invention;
FIG. 2 is a cross-sectional view of upper and lower annular occlusion rings;
1-gland nut, 2-upper flange, 3-upper annulus plugging ring, 4-upper pressure testing plug, 5-bolt, 6-sleeve, 7-toe end sliding sleeve, 8-lower annulus plugging ring, 9-backing ring, 10-lower plug, 11-lower flange, 12-first pressure testing pump, 13-second pressure testing pump and 14-sealing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description is presented by way of example only and is not intended to limit the invention.
Example 1
The embodiment provides a toe end sliding sleeve test system for simulating a field use environment, which is shown in fig. 1 and comprises a pressure test pump, a compression nut, an upper flange, an upper annular sealing ring, an upper pressure test plug, a bolt, a sleeve, a lower annular sealing ring, a backing ring, a lower plug, a lower flange, and an annular space formed by the toe end sliding sleeve, the upper annular sealing ring and the lower annular sealing ring; the upper flange and the lower flange are axially fixed by bolts and nuts through a sliding sleeve at the toe end to be tested, which is arranged in the sleeve, a pressure test hole for connecting a pressure test pipeline is formed in the upper end of the sleeve, and a heating device is arranged on the outer side of the sleeve and can be used for simulating a shaft; the center of the upper flange is provided with a through hole which can pass through the pressure test pipeline so as to be convenient for the connection of the pressure test pipeline joint and the upper pressure test plug; an upper annular space plugging ring and a lower annular space plugging ring are respectively arranged at the upper end and the lower end between the toe end sliding sleeve and the sleeve to be tested; the inner side and the outer side of the upper annular sealing ring and the lower annular sealing ring are provided with sealing ring grooves, and sealing rings are arranged, as shown in figure 2. A backing ring is arranged between the lower annular plugging ring and the lower flange, and the pressure testing pump is respectively connected with a pressure testing hole and an upper pressure testing plug at the upper end of the sleeve through pressure testing pipelines.
Example 2
The embodiment provides a toe end sliding sleeve test method for simulating an on-site use environment, which comprises the following steps:
s1, loading a toe end sliding sleeve into a sleeve, installing a lower plug in the lower end of the toe end sliding sleeve, and sleeving a lower annular blocking ring on the lower part of an annular space formed by the toe end sliding sleeve and the sleeve;
s2, cement slurry is injected into the upper part of the annular space, meanwhile, clear water is fully injected into the toe end sliding sleeve, and a heating device outside the sleeve is turned on, so that the sleeve is heated to a preset temperature according to requirements;
s3, respectively installing an upper pressure test plug and an upper annular space plugging ring at the upper part in the toe end sliding sleeve and the upper part of an annular space formed by the toe end sliding sleeve and the sleeve, and padding the backing ring at the lower end of the lower annular space plugging ring;
s4, respectively installing an upper flange and a lower flange at the upper end and the lower end of the sleeve, and fastening and fixing the flanges through bolts and compression nuts;
s5, connecting the first pressure testing pump with the sleeve, the second pressure testing pump with the upper pressure testing plug respectively through a pressure testing pipeline, and starting the two pressure testing pumps to enable the pressure to reach the actual pressure on site, so that the pressure is kept stable;
and S6, when the cement strength reaches the requirement after the cement is solidified, opening a second pressure testing pump, raising the pressure according to the requirement, observing and recording the change of each pressure and the test phenomenon until the sliding sleeve is opened, and finally cleaning the test site and completing the test report to complete the test.
In the above test steps, the actual pressure on site is related to the drilling depth, so the setting of temperature and pressure can be set according to the actual production requirement, and the requirement of cement strength is usually more than 30MPa.
By adopting the technical scheme disclosed by the invention, the following beneficial effects are obtained:
the invention provides a toe end sliding sleeve test system for simulating an on-site use environment. The toe end sliding sleeve opening test device is mainly used for testing and testing the toe end sliding sleeve under the underground environment condition, can simulate the underground high-temperature and high-pressure environment and test the opening performance of the toe end sliding sleeve under the condition that the toe end sliding sleeve is solidified by well cementing cement paste, and provides a basis for further optimizing the design of the toe end sliding sleeve tool, so that the on-site use success rate of the toe end sliding sleeve tool is improved, well cementation accidents are reduced, and loss in the petroleum and natural gas exploitation process is reduced.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.
Claims (5)
1. A simulation test method of a toe end sliding sleeve is characterized by adopting a simulation test system of the toe end sliding sleeve, wherein the system comprises a sleeve, the toe end sliding sleeve, an upper annular plugging ring, a lower annular plugging ring, an annular space formed by the upper annular plugging ring, the lower annular plugging ring, a backing ring, an upper pressure test plug, a lower plugging head, an upper flange and a lower flange, the toe end sliding sleeve is placed in the sleeve, the lower annular plugging ring is sleeved at the inner lower part of an annular space formed by the toe end sliding sleeve and the sleeve, the upper plugging head and the lower plugging head are respectively arranged in the toe end sliding sleeve, and the upper flange and the lower flange are used for plugging the two ends of the sleeve; the backing ring is padded at the lower end of the lower annular plugging ring;
the center of the upper flange is provided with a through hole for connecting the pressure test pipeline joint with the upper pressure test plug;
the simulation test system further comprises a heating device and a pressurizing device, the heating device is arranged on the outer side of the sleeve, the pressurizing device comprises two pressure test pumps and a pressure test line, the first pressure test pump is connected to a pressure test hole on the sleeve through the pressure test line, and the second pressure test pump is connected to an upper pressure test plug by utilizing the pressure test line to penetrate through a through hole on the upper flange;
the method comprises the following steps:
s1, loading a toe end sliding sleeve into a sleeve, installing a lower plug in the lower end of the toe end sliding sleeve, and sleeving a lower annular blocking ring on the lower part of an annular space formed by the toe end sliding sleeve and the sleeve;
s2, cement slurry is injected into the upper part of the annular space, meanwhile, clear water is fully injected into the toe end sliding sleeve, and a heating device outside the sleeve is turned on, so that the sleeve is heated to a preset temperature according to requirements;
s3, respectively installing an upper pressure test plug and an upper annular space plugging ring at the upper part in the toe end sliding sleeve and the upper part of an annular space formed by the toe end sliding sleeve and the sleeve, and padding the backing ring at the lower end of the lower annular space plugging ring;
s4, sealing the two ends of the sleeve by the upper flange and the lower flange;
s5, connecting the first pressure testing pump with the sleeve, the second pressure testing pump with the upper pressure testing plug respectively through a pressure testing pipeline, and starting the two pressure testing pumps to enable the pressure to reach the actual pressure on site, so that the pressure is kept stable;
and S6, when the cement strength reaches the requirement after the cement is solidified, opening a second pressure testing pump, raising the pressure according to the requirement until the sliding sleeve is opened, and recording the pressure value to complete the test.
2. The simulation test method of claim 1, wherein the system further comprises bolts and compression nuts, the bolts passing through the upper and lower flanges and tightening the upper and lower flanges using the compression nuts.
3. A simulation test method according to claim 1, wherein the heating means is a heating band or a heating jacket covering the sleeve.
4. The simulation test method according to claim 1, wherein the upper annular plugging ring and the lower annular plugging ring are provided with sealing ring grooves on both inner and outer sides thereof, and sealing rings are installed.
5. The simulation test method according to any one of claims 1 to 4, wherein step S4 specifically comprises: the upper flange and the lower flange are respectively arranged at the upper end and the lower end of the sleeve, and the flanges are fastened and fixed through bolts and compression nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432604.8A CN109372486B (en) | 2018-11-28 | 2018-11-28 | Simulation test system and method for toe end sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432604.8A CN109372486B (en) | 2018-11-28 | 2018-11-28 | Simulation test system and method for toe end sliding sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN109372486A CN109372486A (en) | 2019-02-22 |
| CN109372486B true CN109372486B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811432604.8A Active CN109372486B (en) | 2018-11-28 | 2018-11-28 | Simulation test system and method for toe end sliding sleeve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110242277B (en) * | 2019-06-25 | 2023-10-31 | 中国石油天然气股份有限公司 | Well cementation sliding sleeve port starting simulation device and simulation method |
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| CN203716931U (en) * | 2014-04-21 | 2014-07-16 | 阜新驰宇石油机械有限公司 | Horizontal well switchable type well cementation slide sleeve staged fracturing valve |
| CN204422525U (en) * | 2015-02-25 | 2015-06-24 | 中国石油集团渤海钻探工程有限公司 | High-temperature high pressure water mudding performance test evaluating apparatus |
| CN105973578A (en) * | 2016-05-05 | 2016-09-28 | 中国石油集团渤海钻探工程有限公司 | High temperature and high pressure testing apparatus and operation method |
| CN205719515U (en) * | 2016-05-05 | 2016-11-23 | 中国石油集团渤海钻探工程有限公司 | Pressure break starts spool assay device |
| CN205719516U (en) * | 2016-05-05 | 2016-11-23 | 中国石油集团渤海钻探工程有限公司 | Well cementation pitching sliding sleeve setting ball assay device |
| CN207999237U (en) * | 2018-01-30 | 2018-10-23 | 中石化江汉石油工程有限公司 | It can pressure testing toe-end sliding sleeve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9228940B2 (en) * | 2012-09-14 | 2016-01-05 | Halliburton Energy Services, Inc. | Systems, methods, and apparatuses for in situ monitoring of cement fluid compositions and setting processes thereof |
-
2018
- 2018-11-28 CN CN201811432604.8A patent/CN109372486B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2580434Y (en) * | 2002-11-25 | 2003-10-15 | 大庆石油管理局 | Rubber tube pressure tester |
| CN203035188U (en) * | 2013-01-31 | 2013-07-03 | 东北石油大学 | Test experimental device for adhering sand casing pipe cement bond strength |
| CN203716931U (en) * | 2014-04-21 | 2014-07-16 | 阜新驰宇石油机械有限公司 | Horizontal well switchable type well cementation slide sleeve staged fracturing valve |
| CN204422525U (en) * | 2015-02-25 | 2015-06-24 | 中国石油集团渤海钻探工程有限公司 | High-temperature high pressure water mudding performance test evaluating apparatus |
| CN105973578A (en) * | 2016-05-05 | 2016-09-28 | 中国石油集团渤海钻探工程有限公司 | High temperature and high pressure testing apparatus and operation method |
| CN205719515U (en) * | 2016-05-05 | 2016-11-23 | 中国石油集团渤海钻探工程有限公司 | Pressure break starts spool assay device |
| CN205719516U (en) * | 2016-05-05 | 2016-11-23 | 中国石油集团渤海钻探工程有限公司 | Well cementation pitching sliding sleeve setting ball assay device |
| CN207999237U (en) * | 2018-01-30 | 2018-10-23 | 中石化江汉石油工程有限公司 | It can pressure testing toe-end sliding sleeve |
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| Publication number | Publication date |
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| CN109372486A (en) | 2019-02-22 |
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