CN101899954B - Depth positioner of well-entry tool and positioning method - Google Patents
Depth positioner of well-entry tool and positioning method Download PDFInfo
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- CN101899954B CN101899954B CN 201010255400 CN201010255400A CN101899954B CN 101899954 B CN101899954 B CN 101899954B CN 201010255400 CN201010255400 CN 201010255400 CN 201010255400 A CN201010255400 A CN 201010255400A CN 101899954 B CN101899954 B CN 101899954B
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- sliding sleeve
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Abstract
The invention belongs to the industry of gasoline natural gas, in particular to a depth positioner of a well-entry tool and a positioning method for precisely positioning an in-well construction tool in the downhole operation process. The positioner comprises a positioning steel ball, a steel ball loading body, a steel ball work sliding bush, a reset spring, a throttling device port and a continuous oil pipe adaptor, wherein the continuous oil pipe adaptor is connected with the steel ball loading body, the inside diameter of a middle section is larger than the outside diameter which is matched with the inside diameter of a sleeve, and the inside diameter is matched with a raised section of the steel ball work sliding bush; the two ends of the steel ball work sliding bush are matched with sections with small inside diameter of the steel ball loading body; the middle part with large outside diameter in the steel ball loading body is provided with a circumferential hole in which the positioning ball is arranged; a reset spring base is arranged at the bottom of the steel ball work sliding bush; and the throttling device port is arranged in the middle of the steel ball work sliding bush where certain throttling pressure difference is formed. By using the invention, a construction tool connected to the oil pipe can be precisely lowered into an oil-gas layer part which is concretely required.
Description
Technical field
The invention belongs to oil and gas industry, to the pinpoint depth positioner of well-entry tool of construction tool in the well and localization method, be used for pressure break or the accurate screens of testing tool in the particularly underground work process.
Background technology
Underground work is the pressure break of carrying out in sleeve pipe mostly, test, and well testing, the operations such as well workover, various operations all require the power tool of institute's G.I.H is located in sleeve pipe accurately, otherwise the oil-gas Layer position of the inaccurate institute of card operation, can't operation.For the well of the strict location of instrument, often adopt cable to position, such as the location of deep-well separate stratum fracfturing construction tool; Layer position for interlayer less between the layer position, because of cable machinery few, construction cost is high, the normal employing closed the mode that lamination splits construction and constructed, so that relatively broad oil-gas Layer, because construction tool can not accurately be located, and do not transform, had a strong impact on evaluation and the development effectiveness of oil-gas Layer.
The coiled tubing that development in recent years is got up, also can not locate accurately in well because of its band instrument, can not carry out hydraulic jet perforation and pressing crack construction integration of operation, so that the application of domestic coiled tubing aspect pressing crack construction is very restricted, the accurate depth localization problem of coiled tubing in well also is a large technical barrier.
Pressing crack construction is wanted the oil pipe of several kms of G.I.H, oil pipe is behind G.I.H, and its weight reaches the 30-40 ton, and its deadweight elongation is difficult to accurately calculate, tend to occur the phenomenon of the inaccurate oil-gas Layer of construction tool card, can cause the oil gas lamination not hold or the incomplete conclusion of perforation to the constructor.
Summary of the invention
The purpose of this invention is to provide a kind of depth positioner of well-entry tool and localization method, so as can will to be connected to construction tool on the oil pipe accurately be lowered into the oil-gas Layer position of specific requirement.
The object of the present invention is achieved like this, depth positioner of well-entry tool, it is characterized in that: it comprises locking ball, steel ball pack into body, steel ball working sliding sleeve, back-moving spring, restriction choke mouth and coiled tubing connector, the coiled tubing connector connects the steel ball body of packing into, the steel ball body of packing into is the hollow body, its interlude internal diameter and external diameter are large, and external diameter cooperates with casing inner diameter, and internal diameter cooperates with the raised section of steel ball working sliding sleeve; Steel ball working sliding sleeve two ends and the steel ball little section of body two ends internal diameter of packing into cooperates, makes steel ball working slide over the steel ball movement in the body of packing into; There are all circular holes the steel ball large middle part, inside and outside footpath of packing into, locking ball is arranged in the circular hole, the external diameter of locking ball is greater than described circular hole external diameter, only some is betrayed outside steel ball is packed the body circular hole into to make locking ball, steel ball working sliding sleeve bottom has return spring holder, back-moving spring to put into the back-moving spring pedestal by the base plate back cover; There is the restriction choke mouth centre of steel ball working sliding sleeve, and the place forms certain chock pressure difference at the restriction choke mouth, makes the steel ball working sliding sleeve that certain downward thrust be arranged, and thrust is opposite with the screen resilience of back-moving spring downwards.
The localization method of depth positioner of well-entry tool the steps include:
1) length data of utilizing coiled tubing or oil pipe ground to record will enter well tool depth localization body and be lowered into the first short sleeve box cupling place;
2) in oil pipe or coiled tubing, be circulated in the sleeve pipe with the discharge capacity of 100-300l/min and return out, form certain chock pressure difference at the restriction choke mouth place that enters well tool depth localization body, make the steel ball working sliding sleeve that certain downward thrust be arranged;
3) adopt the liquid of direct circulation on one side, the mode of the up and down coiled tubing in one side or coiled tubing, in the scope at several meters at the first short sleeve box cupling place, activity enters well tool depth localization body, when entering well tool depth localization body and run into the first short sleeve box cupling, location steel club enters the first short sleeve box cupling 10 and the second short sleeve box cupling joint;
4) stop the circulation of liquid in the oil pipe, steel ball working slides under the effect of back-moving spring and moves up, and locking ball is packed into mobile in the body to steel ball, make into well tool positioning body and the disengagement of the first short sleeve box cupling;
5) at this moment, tubing string can move up and down in well, adopts above identical mode, seeks the second short sleeve box cupling;
6) when the length of two short sleeve box cuplings equals the short sleeve length of short sleeve box cupling, at this moment, the depth location of other instrument in well that is connected on the oil pipe is exactly its real degree of depth;
7) when the distance between two box cuplings during greater than the length of location short sleeve, then short sleeve is not found in explanation, returns for the 3rd step and continue to seek.
Operating principle of the present invention and advantage are: the working method that is similar to the hydraulic fluid pipeline fast connector.In the time of near oil pipe is lowered into the short sleeve box cupling, for accurate location, it is the link slot of locator steel ball that casing coupling is used as.Be connected with the coiled tubing connector in the oil pipe bottom, in the time will surveying the short sleeve box cupling, in oil pipe, carry out the small displacement circulation, its choke pressure makes the steel ball positioning sleeve that the thrust that moves down be arranged, move down oil pipe in well, when running into casing coupling, steel ball is released in housing, be sitting in the casing coupling place, at this moment, will find that the weight of oil pipe changes, even oil pipe can be sitting in the casing coupling place, or else oil pipe can fall, and illustrates to have found casing coupling.Adopt and seek in the same way another box cupling of short sleeve.Distance when two casing couplings, when reaching the length of location short sleeve, illustrate the OIH pipe just definite with the particular location of instrument, be lowered to again the oil pipe of respective length and adjust pipe nipple, with being connected to construction tool on the oil pipe and being lowered into the oil-gas Layer position of specific requirement, reach its pinpoint requirement.
Description of drawings
The invention will be further described below in conjunction with the embodiment accompanying drawing:
Fig. 1 is the embodiments of the invention structural representations;
Fig. 2 is technological principle schematic diagram of the present invention.
Among the figure: 1, sleeve pipe; 2, casing coupling; 3, locking ball; 4, the steel ball body of packing into; 5, steel ball working sliding sleeve; 6, back-moving spring; 7, restriction choke mouth; 8, coiled tubing connector; 9, oil pipe or coiled tubing; 10, the first short sleeve box cupling; 11, enter well tool depth localization body; 12, the second short sleeve box cupling.
The specific embodiment
As shown in Figure 1, depth positioner of well-entry tool, it comprises locking ball 3, steel ball pack into body 4, steel ball working sliding sleeve 5, back-moving spring 6, restriction choke mouth 7 and coiled tubing connector 8, coiled tubing connector 8 connects the steel balls body 4 of packing into, the steel ball body 4 of packing into is hollow bodies, its interlude internal diameter and external diameter are large, and external diameter cooperates with sleeve pipe 1 internal diameter, and internal diameter cooperates with the raised section of steel ball working sliding sleeve 5; Steel ball working sliding sleeve 5 two ends and the steel ball little section of body 4 two ends internal diameters of packing into cooperates, and makes steel ball working sliding sleeve 5 in the steel ball body 4 interior movements of packing into; There are all circular holes the steel ball large middle part of body 4 internal-and external diameters of packing into, locking ball 3 is arranged in the circular hole, the external diameter of locking ball 3 is greater than described circular hole external diameter, make 3 some revealments of locking ball outside steel ball is packed body 4 circular holes into, return spring holder is arranged at steel ball working sliding sleeve 5 bottoms, and back-moving spring 6 is put into the back-moving spring pedestal by the base plate back cover; There is restriction choke mouth 7 centre of steel ball working sliding sleeve 5, and 7 places form certain chock pressure difference at the restriction choke mouth, makes steel ball working sliding sleeve 5 that certain downward thrust be arranged, and thrust is opposite with the screen resilience of back-moving spring 6 downwards.
During work, utilize the length data of coiled tubing or oil pipe ground record, to enter well tool depth localization body 11 and be lowered into the first short sleeve box cupling 10 places, in oil pipe or coiled tubing 9, be circulated in the sleeve pipe 1 with the discharge capacity of 100-300l/min and return out, form certain chock pressure difference at restriction choke mouth 7 places that enter well tool depth localization body 11, make steel ball working sliding sleeve 5 that certain downward thrust be arranged.Adopt the liquid of direct circulation on one side, the mode of the up and down oil pipe in one side or coiled tubing 9, when oil pipe or coiled tubing 9 are lowered near the short sleeve box cupling, for accurate location, it is the link slot of locking ball 3 that casing coupling 2 is used as, in the scope at several meters at the first short sleeve box cupling 10 places, activity enters well tool depth localization body 11, when entering well tool depth localization body 11 and run into the first short sleeve box cupling 10, locking ball 3 can enter the first short sleeve box cupling 10 and the second short sleeve box cupling 12 joints, can occur as the effect that hydraulic fluid pipeline snap joint is connected, at this moment, the weight of oil pipe or coiled tubing 9 can descend and maybe tubing string can be supported in the well not fall.Illustrate and found the first short sleeve box cupling 10.Stop the circulation of liquid in the oil pipe, steel ball working sliding sleeve 5 moves up under the effect of back-moving spring 6, and locking ball 3 makes into well tool positioning body 11 and 10 disengagements of the first short sleeve box cupling to the steel ball body 4 interior movements of packing into, and at this moment, tubing string can move up and down in well.Adopt above identical mode, seek the second short sleeve box cupling 12.When the length of two short sleeve box cuplings equaled the short sleeve length of short sleeve box cupling, at this moment, the depth location of other instrument in well that is connected on the oil pipe was exactly its real degree of depth.When the distance between two box cuplings during greater than the length of location short sleeve, then short sleeve is not found in explanation, can on carry or transfer tubing string the degree of depth be that the length of a sleeve pipe continues to seek.Until find the second short sleeve box cupling 12.
Claims (1)
1. the localization method of depth positioner of well-entry tool the steps include:
1) utilizes the length data of coiled tubing surface seismic records, depth positioner of well-entry tool (11) is lowered into the first short sleeve box cupling (10) locates;
2) in coiled tubing (9), be circulated in the sleeve pipe (1) with the discharge capacity of 100-300l/min and return out, restriction choke mouth (7) at depth positioner of well-entry tool (11) is located to form certain chock pressure difference, makes steel ball working sliding sleeve (5) that certain downward thrust be arranged;
3) adopt the liquid of direct circulation on one side, the mode of the up and down coiled tubing in one side (9), in the first short sleeve box cupling (10) is located several meters scope, movable depth positioner of well-entry tool (11), when depth positioner of well-entry tool (11) ran into the first short sleeve box cupling (10), locking ball (3) can enter the first short sleeve box cupling (10) and locate;
4) stop the circulation of liquid in the oil pipe, steel ball working sliding sleeve (5) moves up under the effect of back-moving spring (6), locking ball (3) moves within steel ball is packed body (4) into, and depth positioner of well-entry tool (11) and the first short sleeve box cupling (10) are thrown off;
5) at this moment, tubing string can move up and down in well, adopts above identical mode, seeks the second short sleeve box cupling (12);
6) when the length between two short sleeve box cuplings equals the short sleeve length of short sleeve box cupling, at this moment, the depth location of other instrument in well that is connected on the oil pipe is exactly its real degree of depth;
7) when the length between two short sleeve box cuplings during greater than the length of short sleeve, then short sleeve is not found in explanation, returns the 3rd) step continues to seek;
Described depth positioner of well-entry tool (11) comprises locking ball (3), steel ball pack into body (4), steel ball working sliding sleeve (5), back-moving spring (6), restriction choke mouth (7) and coiled tubing connector (8), coiled tubing connector (8) connects the steel ball body (4) of packing into, the steel ball body (4) of packing into is the hollow body, its interlude internal diameter and external diameter are large, external diameter cooperates with the short sleeve internal diameter, and internal diameter cooperates with the raised section of steel ball working sliding sleeve (5); Steel ball working sliding sleeve (5) two ends and the steel ball little section of body (4) two ends internal diameter of packing into cooperates, makes steel ball working sliding sleeve (5) movement within steel ball is packed body (4) into; There are all circular holes the steel ball large middle part of body (4) internal-and external diameter of packing into, locking ball (3) is arranged in the circular hole, the external diameter of locking ball (3) is greater than described circular hole external diameter, only some is betrayed outside steel ball is packed body (4) circular hole into to make locking ball (3), return spring holder is arranged at steel ball working sliding sleeve (5) bottom, and back-moving spring (6) is put into the back-moving spring pedestal by the base plate back cover; There is restriction choke mouth (7) centre of steel ball working sliding sleeve (5), locates to form certain chock pressure difference at restriction choke mouth (7), makes steel ball working sliding sleeve (5) that certain downward thrust be arranged, and thrust is opposite with the screen resilience of back-moving spring (6) downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255400 CN101899954B (en) | 2010-08-17 | 2010-08-17 | Depth positioner of well-entry tool and positioning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255400 CN101899954B (en) | 2010-08-17 | 2010-08-17 | Depth positioner of well-entry tool and positioning method |
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| Publication Number | Publication Date |
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| CN101899954A CN101899954A (en) | 2010-12-01 |
| CN101899954B true CN101899954B (en) | 2013-04-17 |
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| CN 201010255400 Expired - Fee Related CN101899954B (en) | 2010-08-17 | 2010-08-17 | Depth positioner of well-entry tool and positioning method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182438B (en) * | 2011-06-03 | 2013-07-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Layered fracturing technology for variable-length graded sliding sleeve |
| CN102748001B (en) * | 2012-07-24 | 2015-06-17 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hydraulic sand-blasting, perforating, sand-filling, layering and fracturing technology for continuous oil pipe |
| CN103775065B (en) * | 2013-03-28 | 2017-02-08 | 中国石油天然气股份有限公司 | Underground positioning device and method |
| CN108571318B (en) * | 2017-03-09 | 2021-04-20 | 中国石油化工股份有限公司 | Coupling positioner |
| CN109113722B (en) * | 2018-08-07 | 2022-02-25 | 大庆市嘉钰机械制造有限公司 | Oil field underground depth measuring device and method |
| CN110439541B (en) * | 2019-08-21 | 2023-11-03 | 中国石油天然气集团有限公司 | Casing coupling positioner and positioning method by means of friction positioning |
| CN117328826B (en) * | 2023-12-01 | 2024-02-20 | 大庆辰平钻井技术服务有限公司 | Pipeline well dropping prevention device and ultra-short radius horizontal well completion method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88203346U (en) * | 1988-02-13 | 1988-10-19 | 江汉石油管理局油田开发公司采油工艺研究所 | Locator for connecting hoop |
| CN1197881A (en) * | 1997-04-25 | 1998-11-04 | 张云 | Precise well depth logging method |
| US6450259B1 (en) * | 2001-02-16 | 2002-09-17 | Halliburton Energy Services, Inc. | Tubing elongation correction system & methods |
| CN1403685A (en) * | 2002-09-28 | 2003-03-19 | 浙江大学 | Pile hole callipers |
| US7047653B2 (en) * | 2002-02-18 | 2006-05-23 | Schlumberger Technology Corporation | Depth correction |
| US7377051B2 (en) * | 2005-05-06 | 2008-05-27 | Count-Rite Oilfield Solutions Inc. | Coiled tubing counter |
| CN201730611U (en) * | 2010-08-17 | 2011-02-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Downhole tool depth positioner |
-
2010
- 2010-08-17 CN CN 201010255400 patent/CN101899954B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88203346U (en) * | 1988-02-13 | 1988-10-19 | 江汉石油管理局油田开发公司采油工艺研究所 | Locator for connecting hoop |
| CN1197881A (en) * | 1997-04-25 | 1998-11-04 | 张云 | Precise well depth logging method |
| US6450259B1 (en) * | 2001-02-16 | 2002-09-17 | Halliburton Energy Services, Inc. | Tubing elongation correction system & methods |
| US7047653B2 (en) * | 2002-02-18 | 2006-05-23 | Schlumberger Technology Corporation | Depth correction |
| CN1403685A (en) * | 2002-09-28 | 2003-03-19 | 浙江大学 | Pile hole callipers |
| US7377051B2 (en) * | 2005-05-06 | 2008-05-27 | Count-Rite Oilfield Solutions Inc. | Coiled tubing counter |
| CN201730611U (en) * | 2010-08-17 | 2011-02-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Downhole tool depth positioner |
Non-Patent Citations (4)
| Title |
|---|
| 国内外油套管接箍探测的发展概况;常玉连 等;《石油仪器》;20100228;第24卷(第1期);1-3 * |
| 常玉连 等.国内外油套管接箍探测的发展概况.《石油仪器》.2010,第24卷(第1期),1-3. |
| 无线套管接箍定位器及其在连续油管压裂中的应用;陈军 等;《新疆石油天然气》;20080630;第4卷(第2期);73-76,84 * |
| 陈军 等.无线套管接箍定位器及其在连续油管压裂中的应用.《新疆石油天然气》.2008,第4卷(第2期),73-76,84. |
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| CN101899954A (en) | 2010-12-01 |
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