CN111594096B - Underground ultrasonic vibration well cementation system and vibration well cementation method thereof - Google Patents
Underground ultrasonic vibration well cementation system and vibration well cementation method thereof Download PDFInfo
- Publication number
- CN111594096B CN111594096B CN202010440855.1A CN202010440855A CN111594096B CN 111594096 B CN111594096 B CN 111594096B CN 202010440855 A CN202010440855 A CN 202010440855A CN 111594096 B CN111594096 B CN 111594096B
- Authority
- CN
- China
- Prior art keywords
- casing string
- well
- generator
- palman
- ultrasonic vibration
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B28/00—Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Abstract
The invention discloses an underground ultrasonic vibration well cementation system and a vibration well cementation method thereof, belonging to the field of oil and gas well engineering. This ultrasonic vibration well cementation system in pit includes: the device comprises a casing string, a centralizer, a seal isolation plate and a P-Raman generator, wherein the casing string can be put into a preset position of an oil-gas well, the centralizer is arranged on the casing string, the seal isolation plate is provided with the P-Raman generator which is symmetrically arranged in a ring shape; the ultrasonic vibration well cementation system is used for suppressing pressure by using a rubber plug and displacement fluid to force the rubber plug to move downwards, and the displacement fluid extrudes cement slurry which is injected into a casing string in advance; the extruded cement slurry flows through a contraction spray cavity and a nozzle of the Palman generator to generate ultrasonic vibration, and the multi-section Palman generator can generate long-distance high-frequency vibration to act on the whole well section casing string, the well wall and the cement slurry. The invention has simple design and lower processing cost, improves the vibration effect, cleans the mud cake of the cementing surface, shortens the initial and final setting time and further improves the well cementation quality.
Description
Technical Field
The invention relates to the field of oil and gas well engineering, in particular to an underground ultrasonic vibration well cementation system and a vibration well cementation method thereof.
Background
The well cementation is one of the most key parts in oil and gas exploitation engineering, and the excellent well cementation technology and process can improve the well cementation quality and prolong the service life of an oil and gas well. The filling gap can be reduced by applying vibration, mud cakes on a cementing surface are removed, the turbulent flow replacement effect is enhanced, annular gas channeling is inhibited, the cementing strength of a cement surface is improved, the cement gelling time is shortened, and the static shearing force of cement slurry is reduced or even eliminated, so that the cementing quality can be effectively improved through vibration cementing. However, the existing vibration cementing technology still has the problems of weak vibration strength and uneven vibration distribution. When the low-frequency hydraulic pulse type vibration cementing tool which is widely applied at present is used, the vibration frequency is low, the effect of ultrasonic high-frequency vibration is not obvious, the low-frequency hydraulic pulse type vibration cementing tool is usually arranged on a casing string close to the bottom of a well, the generated vibration is gradually weakened when being uploaded along the casing string, so that the remote vibration intensity in the casing string is weak, and the cementing quality is influenced. Therefore, a well cementing technique capable of realizing uniform distribution and generating high-frequency vibration in a long distance is urgently needed to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide an underground ultrasonic vibration well cementation system and a vibration well cementation method thereof, which are characterized in that the underground ultrasonic vibration well cementation system comprises: a casing string which can be put into a preset position of an oil-gas well can be put into the well, and an annular space is formed between the casing string and the wall of the oil-gas well; a centralizer is mounted on a casing string, a sealing ring which is self-expandable when encountering oil and water is mounted between the centralizer and the wall of an oil-gas well, a sealing isolation plate is mounted between the casing string and the centralizer, and a sealing isolation plate is mounted on every other casing string of the centralizer; the sealed isolation plate is provided with symmetrical Palman generators which are arranged in a ring shape; a sealing ring is arranged between the Palman generator and the sealing isolation plate; a rubber plug accommodated in the sleeve, and displacement liquid is injected on the rubber plug; the ultrasonic vibration well cementation system is pressed by using a rubber plug and displacement fluid to force the rubber plug to move downwards, and the displacement fluid extrudes cement slurry which is injected into a casing string in advance; the extruded cement slurry flows through a contraction spray cavity and a nozzle of the Palman generator to generate ultrasonic vibration, and the multi-section Palman generator can generate long-distance high-frequency vibration to act on the whole well section casing string, the well wall and the cement slurry.
The cement slurry used in the conventional well cementation process is injected into a casing string to meet the actual requirement.
And the sealing isolation plate, the casing string and the centralizer are tightly sealed by the sealing material which can self expand when meeting oil and water.
And oil-water self-expandable sealing materials are arranged between the centralizer and the casing string and between the centralizer and the well wall, so that the centralizer is strictly sealed.
And a sealing material which can automatically expand when meeting oil and water is arranged between the Palman generator and the sealing and isolating plate to ensure that the Palman generator is strictly sealed.
A vibration cementing method of an underground ultrasonic vibration cementing system comprises the following steps:
step 1, a casing string is lowered into a preset position in an oil-gas well, and an annular space is formed between the casing string and the inner wall of the oil-gas well;
step 2, injecting cement slurry meeting actual requirements into the casing string;
step 3, injecting a rubber plug into the casing string;
step 6, enabling the pressurized cement slurry to flow through the annular space to reach a contraction spraying cavity and a nozzle of the Palman generator to generate a high-pressure liquid sheet;
and 8, the multi-section Parlman generator generates long-distance high-frequency vibration to act on the casing string, the well wall and the cement paste of the whole well section.
The number of Palman generators arranged on each sealing isolation plate and the cross-sectional areas of the contraction spray cavity and the nozzle of each sealing isolation plate are determined according to the flow rate and the density of cement slurry in the annular space and the required ultrasonic vibration intensity.
The reed placed in the Palman generator is made of a material with high strength, good elasticity, high fatigue resistance and strong corrosion resistance, so that the 304 stainless steel is adopted to manufacture the wedge-shaped reed.
The hydraulic ultrasonic vibration well cementation method has the beneficial effects that the hydraulic ultrasonic vibration well cementation method is mainly used for vibration well cementation, can generate ultrasonic waves with certain intensity in the whole well section, and carries out ultrasonic treatment on cement paste to enable the cement paste to generate an ultrasonic stirring effect, so that cement particles are dispersed more uniformly, the hydration process of the cement paste is accelerated, the rheological property of the cement paste is improved, and the method plays an important role in guaranteeing the initial and final setting and the intensity development of the cement paste in an annular space and inhibiting the gas channeling of the annular space; the ultrasonic wave generated simultaneously has a strong cleaning function and can effectively clean the mud cake on the cemented surface, thereby further improving the cementing quality of cement slurry, the casing string and the well wall. The invention has simple design and lower processing cost, does not need to change the prior well cementation process, generates high-frequency vibration in a long distance, ensures uniform vibration distribution, improves the vibration effect, cleans the mud cake on the cementing surface, shortens the initial and final setting time and further improves the well cementation quality.
Drawings
FIG. 1 is a schematic diagram of a downhole ultrasonic vibration cementing system.
Figure 2 is an enlarged view of a portion of the installation centralizer in figure 1.
Fig. 3 is a schematic structural diagram of the palman generator.
The reference numbers in the figures are: 501-reed, 502-nozzle, 503-upper joint, 504-convergent-nozzle cavity, 505-lower joint.
Detailed Description
The invention provides an underground ultrasonic vibration well cementation system and a vibration well cementation method thereof, wherein the vibration well cementation method comprises the following steps: the invention is further described below with reference to the accompanying drawings.
Referring to figure 1, a schematic diagram of a downhole ultrasonic vibration cementing system and a partial enlarged view of a centralizer-mounting portion of figure 2, there is shown a hydraulic ultrasonic vibration cementing system comprising a casing string 1 that can be lowered into a predetermined location in a hydrocarbon well; an annular space 13 is formed between the casing string 1 and the wall 12 of the oil and gas well; a1 # centralizer 3, a 2# centralizer 14 and a 3# centralizer 15 are sequentially arranged on a casing string 1 from top to bottom; a 2# Parlman generator 16 is arranged in the middle of the 3# centralizer 15; a sealing ring 7 which automatically expands when the well wall meets oil and water is arranged between the 1# centralizer 3 and the well wall 12 of the oil and gas well; an oil-water self-expansion sealing ring 2 is arranged between the 1# centralizer 3 and the casing string 1; a sealing and isolating plate 6 is arranged between the casing 1 and the 1# centralizer 3; the sealed isolation plate 6 is provided with a 1# Palman generator 5 which is symmetrically and annularly arranged; a sealing ring 11 is arranged between the 1# Parlman generator 5 and the sealing isolation plate 6; a rubber plug 10 accommodated in the casing 1; the upper sleeve 1 of the rubber plug 10 is internally provided with displacement liquid 4; a sleeve pipe oil-water self-expansion sealing ring 8 is arranged between the middle sealing isolation plate 6 of the 1# centralizer 3 and the sleeve pipe 1; the cement slurry 9 is forced to flow through the 1# palman generator 5 causing ultrasonic vibrations which act on the casing 1, the borehole wall 12 and the cement slurry 9.
Fig. 3 is a schematic diagram of the palman generator. The spring plate 501 is vertically fixed on the top end of the upper joint 503, the lower end of the spring plate 501 is opposite to the nozzle 502, the lower joint 505 is inserted into the inner cavity of the upper joint 503 and fixed, the inner cavity of the lower joint 505 is a pointed tower-shaped contracted spraying cavity 504, and the through hole on the top end of the pointed tower-shaped contracted spraying cavity 504 is the nozzle 502.
The ultrasonic vibration well cementation system is pressed by using a rubber plug and displacement fluid to force the rubber plug to move downwards, and the displacement fluid extrudes cement slurry which is injected into a casing string in advance; the extruded cement slurry flows through a contraction spray cavity and a nozzle of the Palman generator to generate ultrasonic vibration, and the multi-section Palman generator can generate long-distance high-frequency vibration to act on the whole well section casing string, the well wall and the cement slurry.
The cement slurry in the structure is the cement slurry used in the conventional well cementation process, and the cement is injected into the casing string to achieve the actual requirement. And the sealing isolation plate, the casing string and the centralizer are tightly sealed by the sealing material which can self expand when meeting oil and water. And oil-water self-expandable sealing materials are arranged between the centralizer and the casing string and between the centralizer and the well wall, so that the centralizer is strictly sealed. And a sealing material which can automatically expand when meeting oil and water is arranged between the Palman generator and the sealing and isolating plate to ensure that the Palman generator is strictly sealed.
A vibration cementing method of an underground ultrasonic vibration cementing system comprises the following steps:
step 1, a casing string 1 is lowered to a preset position in an oil-gas well, and an annular space 13 is formed between the casing string and the inner wall of the oil-gas well;
step 2, injecting cement slurry 9 meeting actual requirements into the casing string;
step 3, injecting a rubber plug 10 into the casing string;
step 6, enabling the pressurized cement slurry to flow through the annular space to reach a contraction spraying cavity and a nozzle of the Palman generator to generate a high-pressure liquid sheet;
and 8, the multi-section Parlman generator generates long-distance high-frequency vibration to act on the casing string, the well wall and the cement paste of the whole well section.
The number of Palman generators arranged on each sealing isolation plate and the cross-sectional areas of the contraction spray cavity and the nozzle of each sealing isolation plate are determined according to the flow rate and the density of cement slurry in the annular space and the required ultrasonic vibration intensity.
The reed placed on the Palman generator is a 304 stainless steel wedge-shaped reed, and the material of the reed is high in required strength, good in elasticity, high in fatigue resistance and strong in corrosion resistance.
In the implementation method, ultrasonic waves with certain intensity are generated by an underground hydraulic ultrasonic generating device, namely a Palman generator, and the cement slurry is subjected to ultrasonic treatment, so that the cement slurry generates an ultrasonic stirring effect, cement particles are dispersed more uniformly, the hydration process of the cement slurry is accelerated, the rheological property of the cement slurry is improved, and an important guarantee effect is played on the aspects of initial and final setting, strength development and annular air channeling inhibition of the cement slurry in an annular space; because the attenuation of ultrasonic wave is fast, need install palman generator (as shown in figure 1) on every other centralizer, make the vibration of grout in the annular space more even, strong, realize long distance high frequency vibration, make grout all can produce the ultrasonic wave stirring effect in whole annular space, the ultrasonic wave that produces simultaneously still has very strong cleaning function, can effectively clean cemented surface mud cake to further improve the cementation quality of grout and casing string and wall of a well.
Claims (8)
1. A downhole ultrasonic vibration cementing system, comprising: a casing string which can be put into a preset position of an oil-gas well can be put into the well, and an annular space is formed between the casing string and the wall of the oil-gas well; a centralizer is mounted on a casing string, a sealing ring which is self-expandable when encountering oil and water is mounted between the centralizer and the wall of an oil-gas well, a sealing isolation plate is mounted between the casing string and the centralizer, and a sealing isolation plate is mounted on every other casing string of the centralizer; the sealed isolation plate is provided with symmetrical Palman generators which are arranged in a ring shape; a sealing ring is arranged between the Palman generator and the sealing isolation plate; a rubber plug accommodated in the sleeve, and displacement liquid is injected on the rubber plug; the ultrasonic vibration well cementation system is pressed by using a rubber plug and displacement fluid to force the rubber plug to move downwards, and the displacement fluid extrudes cement slurry which is injected into a casing string in advance; the extruded cement slurry flows through a contraction spray cavity and a nozzle of the Palman generator to generate ultrasonic vibration, and the multi-section Palman generator can generate long-distance high-frequency vibration to act on the whole well section casing string, the well wall and the cement slurry.
2. The downhole ultrasonic vibration cementing system according to claim 1, wherein the cement slurry is a cement slurry used in conventional cementing processes.
3. The downhole ultrasonic vibration cementing system according to claim 1, wherein the seal isolation plate is tightly sealed with an oil-water self-expandable sealing material between the casing string and the centralizer.
4. The downhole ultrasonic vibration cementing system according to claim 1, wherein the centralizer is tightly sealed with an oil-water self-expandable sealing material between the casing string and the well wall.
5. The downhole ultrasonic vibration cementing system according to claim 1, wherein the palman generator is tightly sealed by a sealing material which self-expands when exposed to oil and water between the palman generator and the sealing isolation plate.
6. A method of vibratory cementing in a downhole ultrasonic vibratory cementing system as defined in claim 1, comprising the steps of:
step 1, a casing string is lowered into a preset position in an oil-gas well, and an annular space is formed between the casing string and the inner wall of the oil-gas well;
step 2, injecting cement slurry meeting actual requirements into the casing string;
step 3, injecting a rubber plug into the casing string;
step 4, injecting displacement liquid meeting the actual requirements into the casing string;
step 5, pressing the rubber plug by the displacement liquid to move the cement paste;
step 6, enabling the pressurized cement slurry to flow through the annular space to reach a contraction spraying cavity and a nozzle of the Palman generator to generate a high-pressure liquid sheet;
step 7, the high-pressure liquid sheet impacts a reed of the Palman generator to enable the reed to generate ultrasonic vibration; the ultrasonic vibration will be transmitted to the surrounding casing string, well wall and cement slurry;
and 8, the multi-section Parlman generator generates long-distance high-frequency vibration to act on the casing string, the well wall and the cement paste of the whole well section.
7. The method of claim 6, wherein the number of Palman generators and the size of the cross-sectional area of the convergent-divergent cavity and the nozzle are determined according to the flow rate and density of the cement slurry in the annular space and the required intensity of the ultrasonic vibration.
8. The method for vibrating a well cementation by an ultrasonic vibration well cementation system in a well according to claim 6, wherein the reed placed on the Palman generator is made of a material which is required to have high strength, good elasticity, high fatigue resistance and strong corrosion resistance; therefore, the spring plate of the Palman generator adopts 304 stainless steel to make the spring plate with the shape of the wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440855.1A CN111594096B (en) | 2020-05-22 | 2020-05-22 | Underground ultrasonic vibration well cementation system and vibration well cementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440855.1A CN111594096B (en) | 2020-05-22 | 2020-05-22 | Underground ultrasonic vibration well cementation system and vibration well cementation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111594096A CN111594096A (en) | 2020-08-28 |
| CN111594096B true CN111594096B (en) | 2021-04-30 |
Family
ID=72187542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010440855.1A Active CN111594096B (en) | 2020-05-22 | 2020-05-22 | Underground ultrasonic vibration well cementation system and vibration well cementation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111594096B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2781458C1 (en) * | 2022-03-17 | 2022-10-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет"(ФГБОУ ВО "КубГТУ") | Well casing method in complicated conditions and device for its implementation |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183077B (en) * | 2021-12-01 | 2023-12-05 | 中国海洋石油集团有限公司 | Underground hydraulic vibration assisted casing running and well cementation integrated combined tool and use method thereof |
| CN114961565B (en) * | 2022-06-07 | 2023-05-09 | 中国农业大学 | Surface casing running and vibration well cementation method and test device thereof |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343356A (en) * | 1972-10-06 | 1982-08-10 | Sonics International, Inc. | Method and apparatus for treating subsurface boreholes |
| US6230802B1 (en) * | 1998-07-24 | 2001-05-15 | Schlumberger Technology Corporation | Method and apparatus for gravel packing a well |
| US7252152B2 (en) * | 2003-06-18 | 2007-08-07 | Weatherford/Lamb, Inc. | Methods and apparatus for actuating a downhole tool |
| US20070256828A1 (en) * | 2004-09-29 | 2007-11-08 | Birchak James R | Method and apparatus for reducing a skin effect in a downhole environment |
| US20080298163A1 (en) * | 2007-06-01 | 2008-12-04 | Jean-Louis Pessin | Vibration Assisted Mixer |
| CN201250628Y (en) * | 2008-09-09 | 2009-06-03 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Downhole hydraulic machine vibration pulse generator |
| MX349087B (en) * | 2012-04-25 | 2017-07-10 | Thru Tubing Solutions Inc | Methods and devices for casing and cementing a wellbore. |
| CN102889067B (en) * | 2012-10-31 | 2016-01-13 | 中国海洋石油总公司 | Can the cementing unit of multidirectional vibration |
| CN103084258A (en) * | 2013-01-22 | 2013-05-08 | 李丹军 | Impact ultrasonic wave serum pulverizator |
| CN103806863B (en) * | 2014-01-29 | 2016-06-22 | 中国石油集团西部钻探工程有限公司 | Fluid power concussion centralizer |
| CN203742544U (en) * | 2014-04-02 | 2014-07-30 | 成都杜特威石油科技有限公司 | Well cementing device for ultrasonically processing downhole hydraulic pulse coupled concrete slurry |
| CN104196480B (en) * | 2014-08-13 | 2017-06-27 | 中国科学院声学研究所 | Hydrokinetic ultrasonic generating means for reducing overweight oil viscosity |
| CN205089263U (en) * | 2015-11-16 | 2016-03-16 | 德州汉隆石油设备有限公司 | Eccentric formula is sleeve pipe vibration generator device in pit |
| CN108855849A (en) * | 2018-06-13 | 2018-11-23 | 合肥托卡拉图科技有限公司 | It is a kind of for liquid from exciting sonic generator |
| CN110939431B (en) * | 2019-11-26 | 2023-06-30 | 北京工业大学 | Array sensor for nondestructive testing of cement sheath defects of well cementation casing |
-
2020
- 2020-05-22 CN CN202010440855.1A patent/CN111594096B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2781458C1 (en) * | 2022-03-17 | 2022-10-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет"(ФГБОУ ВО "КубГТУ") | Well casing method in complicated conditions and device for its implementation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111594096A (en) | 2020-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111594096B (en) | Underground ultrasonic vibration well cementation system and vibration well cementation method thereof | |
| CN108138552B (en) | Well abandonment using vibration to aid cement filling | |
| CN109723404B (en) | Naked eye plugging device and method for coal gas exploration well | |
| US5836389A (en) | Apparatus and method for increasing production rates of immovable and unswept oil through the use of weak elastic waves | |
| US8082989B2 (en) | Method for impulse stimulation of oil and gas well production | |
| CN111396049B (en) | Safe and environment-friendly rock blasting device and method | |
| US20100044047A1 (en) | Method for impulse stimulation of oil and gas well production | |
| CN110295869B (en) | Expansion liner tube for repeated fracturing and repeated fracturing method | |
| CN102268973B (en) | Hole sealing device | |
| CN106761650A (en) | Oil, many microcrack pressure break block releasing techniques of well | |
| CA2507413C (en) | Method of installing a tubular assembly in a wellbore | |
| CN106198933B (en) | A kind of device of gradient layer simulation for the weak consolidated formation well cementation intensity of deep water | |
| US3832857A (en) | Pressure grouting | |
| CN103939669A (en) | Anti-seepage underground pipeline structure in soft soil matrix and construction technology of anti-seepage underground pipeline structure | |
| EP1043477B1 (en) | A method and apparatus for completing a well for producing hydrocarbons or the like | |
| CN201714337U (en) | Hole sealing device | |
| CA3019285A1 (en) | Device and method for cleaning a wellbore equipment | |
| RU2717167C1 (en) | Well bottomhole washing method | |
| CN104563953A (en) | Double-layer steel pipe expansion type pipe external casing packer | |
| US11585176B2 (en) | Sealing cracked cement in a wellbore casing | |
| CN110359937B (en) | Anchor rod recovery device driven by dynamic and static combination and recovery method | |
| CN116066000A (en) | Casing sand blasting, slotting and cavity making tubular column and shaping operation method thereof | |
| RU2081314C1 (en) | Device for creating directed fissures in bore-holes | |
| CN110952541A (en) | Construction method of large-diameter anti-floating anchor rod combining vibration immersed tube and high-pressure rotary spraying | |
| CN215804496U (en) | Novel repeated fracturing segmentation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |