CN103032058A - Horizontal multi-stage fracturing sliding sleeve of an oil field and opening tool - Google Patents
Horizontal multi-stage fracturing sliding sleeve of an oil field and opening tool Download PDFInfo
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- CN103032058A CN103032058A CN2011103025651A CN201110302565A CN103032058A CN 103032058 A CN103032058 A CN 103032058A CN 2011103025651 A CN2011103025651 A CN 2011103025651A CN 201110302565 A CN201110302565 A CN 201110302565A CN 103032058 A CN103032058 A CN 103032058A
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Abstract
The invention relates to a horizontal multi-stage fracturing sliding sleeve of an oil field. The inner wall of an outer cylinder is in sliding fit with an inner sliding tube, and sealing rings are sleeved on the inner sliding tube and seal side holes on the outer cylinder; the outer cylinder is fixedly connected with the inner sliding tube through a shear pin, and an annular embedding groove is arranged in the inner sliding tube; an elastic clamping jaw with reversed teeth is arranged at the lower part of the inner sliding tube, and the lower end of the outer tube is connected with a lower joint; and a ratchet is arranged on the inner wall of the lower joint. The opening tool is characterized in that four grooves are arranged in the outer wall of a mandrel, and a compression spring is respectively arranged in the groove; an embedding tile is buckled on the compression spring and is positioned by a pressure sleeve, and the left end of the mandrel is connected with a leather cup pressing cap; a sealing ring and a leather cup with an upward opening are arranged in the leather cup pressing cap, and a pressure balance rod with a fishing head is thick at the upper part and thin at the lower part; a rectangular sealing ring is sleeved on a shoulder arranged between the thick rod and the thin rod, and the thin rod penetrates through the leather cup pressing cap and the central hole of the mandrel; and a compression spring is sleeved at the lower part of the thin rod and is compressed between the upper end surface of a spring pressing cap and the lower end surface of the mandrel through the spring pressing cap screwed on the thin rod.
Description
Technical field
The present invention relates to be used in a kind of In Oil Field Exploration And Development process the sliding sleeve that horizontal well multistage pressure break, acidifying or abrasive perforating are used.
Background technology
Often to carry out pressure break, acidizing treatment to the stratum of having penetrated out in the oilfield explorating developing process, to improve near the gas channel the pit shaft, reach the purpose that improves output.Horizontal well multistage (layer) fracturing process commonly used is with several packer+oil pipes horizontal well to be divided into some sections, a sliding sleeve is placed at every section middle part, at first bottom one section sliding sleeve is opened during pressure break and pressure break next section, and then the sliding sleeve of its preceding paragraph opened (side opening of opening sliding sleeve-be about to sliding sleeve opens-time need the oil pipe passage below this sliding sleeve is blocked), second segment is carried out pressure break, but like this some sections of pressure breaks.
Fracturing sliding bush commonly used as shown in Figure 5 at present, mainly formed by urceolus (25), " O " shape sealing ring (26), inner sliding pipe (27), shear pin (28) and lower contact (29), side opening on the urceolus is by inner sliding pipe and be sleeved on sealing ring sealing on the inner sliding pipe, be fixed together by shear pin between urceolus and the inner sliding pipe, the front end of inner sliding pipe has an inner conical surface.In oil pipe, drop into one piece of steel ball or baton round in the time that sliding sleeve need to being opened, when ball falls into or is pumped on the inner conical surface of inner sliding pipe, ball and the inner sliding pipe conical surface form sealing, suppress (pumping liquid) oil pipe internal pressure in the oil pipe and will raise this moment, when pressure rises to the numerical value of a certain setting, the shear pin of affixed inner sliding pipe is cut off, slip pipe comes downwards to the position (lower contact inner face place) of restriction, side opening on the urceolus is opened, oil pipe inside is communicated with annular space by side opening, and the oil pipe passage below the sliding sleeve is blocked by steel ball or baton round, this at this moment just can this sliding sleeve of pressure break corresponding section.
Use this sliding sleeve to want the pressure break multistage can only be by the internal diameter that dwindles step by step sliding sleeve (inner sliding pipe) (namely more on the lower its corresponding sliding sleeve internal diameter of interval less), the steel ball size that is used for opening each sliding sleeve is then than the large several millimeters of internal diameter of corresponding sliding sleeve, and the internal diameter of each sliding sleeve is again than the large several millimeters of the steel ball size of opening the next stage sliding sleeve, because the restriction of the used tubing size of pressure break, the hop count of pressure break (or progression) is very limited, be difficult to realize the multistage pressure break, and along with the continuous progress of horizontal well drilling technology, the horizontal segment of the horizontal well that bores is more and more longer, people wish horizontal segment is divided into more section, carry out the staged fracturing acidifying to more section and transform to improve output, above-mentioned sliding sleeve can not satisfy this demand, the purpose of this patent will address this problem exactly, satisfies the demand of horizontal well multiple fracturing.
Summary of the invention
The object of the present invention is to provide a kind of oilfield horizontal well multistage fracturing sliding bush, how many levels (individual) because this sliding sleeve don't work, its internal diameter is all the same, do not have undergauge (sliding sleeve internal diameter is more on the lower less) problem, this sliding sleeve is to reach by the length that changes caulking groove to increase sliding sleeve to use progression be the purpose of multistage pressure break.
Another object of the present invention provides the matching used specialized opener of a kind of and described oilfield horizontal well multistage fracturing sliding bush, because the unique design of this instrument, make it in oil pipe, have unidirectional mobility (before the embedding watt embedding caulking groove) and one-way sealing (after the embedding watt embedding caulking groove), therefore can be pumped in the sliding sleeve, after the embedding of opener watt embeds the caulking groove of sliding sleeve, opener is no longer descending and by bearing the fluid pressure open sliding sleeve, sliding sleeve is opened fluid pressure higher when opener can also bear pressure break afterwards and is blocked the following oil pipe passage of sliding sleeve, and the complete rear opener of pressure break is easy to be salvaged.
The object of the present invention is achieved like this: a kind of oilfield horizontal well multistage fracturing sliding bush, comprise the tubulose urceolus, the urceolus upper end is box thread, the lower end is male thread, top arranges several side through hole, outer tube inner wall is slidingly matched and is filling inner sliding pipe, the interval is being set with on the inner sliding pipe periphery wall, lower seal, on, lower seal is positioned at the side through hole both sides it is sealed, on the inner sliding pipe, one shear pin groove is set between the lower seal, the urceolus corresponding position is arranging the screw that shear pin is installed, and by shear pin inner sliding pipe and urceolus is fixed together, and the inner sliding pipe middle part has annular caulking groove, the upper end of groove is the gentle tapers surface, the lower end is the flat surface vertical with axis, and the inner sliding pipe bottom is elastic card claw, and the claw external surface is arranging pawl; The lower contact upper end is a box thread, and the lower end is a male thread, and the middle part inwall is arranging the ratchet that can be meshed with said pawl, and the urceolus lower end is connected with lower contact by screw thread.When sliding sleeve was opened, said pawl and ratchet were intermeshing, and anti-anti-skid sheath is closed again.
A kind of and described oilfield horizontal well multistage fracturing sliding bush supports the use, to its opener of opening, this instrument comprises mandrel, uniform 4 grooves on the axial periphery wall at mandrel middle part, Compress Spring vertically is being set respectively in the groove, spiral-lock embedding watt on the Compress Spring, the two ends of embedding watt have respectively outward extending positioning boss, be threaded connection respectively on the mandrel at embedding watt two ends and be set with, lower embedding watt gland, the positioning boss at embedding watt two ends snaps in respectively, in the lower embedding watt gland end, distance between two symmetrical embedding watt end faces is greater than upper, the external diameter of lower embedding watt gland, embedding watt upper end is conical surface, the lower end is a flat surface vertical with axis, embedding watt matches with the caulking groove that said oilfield horizontal well multistage fracturing sliding bush inner sliding pipe middle part arranges, be a through hole in the middle of the mandrel, its upper end is connected with the leather cup pressure cap by screw thread; Be set with sealing ring and an opening up leather cup on the periphery wall of leather cup pressure cap middle part, arranging in the leather cup and vulcanization of rubber distinguish steel disc and steel loop together, steel disc and steel ring welding consist of leather cup muscles and bones together, are a through hole in the middle of the leather cup pressure cap; Pressure balancing stem with fishing head is upper coarse and lower fine, be set with rectangular seal on the straight shoulder between thick bar and the thin bar, thin bar is passed the central aperture of leather cup pressure cap and mandrel, its underpart is being set with Compress Spring, and the spring pressure cap that this Compress Spring is screwed in by screw thread on the thin bar is compressed between spring pressure cap upper surface and the mandrel lower surface.
When the present invention uses, first with in the fracturing sliding bush lower going-into-well, in the time of need to opening sliding sleeve opener dropped in the well (in the oil pipe) and with pump truck it is pumped to the sliding sleeve place, when opener runs to sliding sleeve inner sliding pipe middle part, embedding watt is opened and to be snapped in the caulking groove, continuation pumping liquid in the oil pipe, leather cup can be close to tube inner wall, opener is in the one-way sealing state at this moment, fluid pressure can raise rapidly in the oil pipe, the embedding of pressure by opener watt acts on the sliding sleeve, and when pressure reached a certain numerical value, the shear pin of affixed sliding sleeve urceolus and inner sliding pipe was cut off, inner sliding pipe comes downwards to and limits the position, meanwhile the elastic card claw of inner sliding pipe lower end is beated descendingly at the ratchet of lower contact inwall, and the ratchet of the pawl on it and lower contact inwall is intermeshing, and this moment, sliding sleeve was opened.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is that the master of fracturing sliding bush initial closed state of the present invention looks the semi-section structural representation;
Fig. 2 is that the master of opener of the present invention looks the semi-section structural representation;
Fig. 3 is that the master that fracturing sliding bush of the present invention is in open mode looks the semi-section structural representation;
Fig. 4 is that opener embedding watt embeds inner sliding pipe annular caulking groove and the state master when sliding sleeve opened looks the semi-section structural representation.
Fig. 5 looks the semi-section structural representation for the master of fracturing sliding bush initial closed state at present commonly used.
The specific embodiment
A kind of oilfield horizontal well multistage fracturing sliding bush, as shown in Figure 1, comprise tubulose urceolus 1, the urceolus upper end is box thread, the lower end is male thread, top arranges several side through hole 4, outer tube inner wall is slidingly matched and is filling inner sliding pipe 3, the interval is being set with on the inner sliding pipe periphery wall, lower seal 2,6, on, lower seal is positioned at the side through hole both sides seals it, on the inner sliding pipe, one shear pin groove is set between the lower seal, and the urceolus corresponding position is arranging the screw that shear pin is installed, by shear pin 5 inner sliding pipe and urceolus are fixed together, the inner sliding pipe middle part has annular caulking groove 7, and the upper end of caulking groove is the gentle tapers surface, and the lower end is the flat surface vertical with axis, the inner sliding pipe bottom is elastic card claw 8, and the claw external surface is arranging pawl; Lower contact 9 upper ends are a box thread, and the lower end is a male thread, and the middle part inwall is arranging the ratchet 10 that can be meshed with said pawl, and the lower contact upper end is connected with the urceolus lower end by screw thread.When sliding sleeve was opened, said pawl and ratchet were intermeshing, and anti-anti-skid sheath is closed again.The upper and lower screw thread of sliding sleeve can be for being connected with oil pipe.
A kind of and described oilfield horizontal well multistage fracturing sliding bush supports the use, to its opener of opening, as shown in Figure 2, this instrument comprises mandrel 18, uniform 4 grooves on the axial periphery wall at mandrel middle part, Compress Spring 20 vertically is being set respectively in the groove, spiral-lock embedding watts 21 on the Compress Spring, the two ends of embedding watt have respectively outward extending positioning boss, be threaded connection respectively on the mandrel at embedding watt two ends and be set with, lower embedding watt gland 19,22, the positioning boss at embedding watt two ends snaps in respectively, in the lower embedding watt gland end, distance between two symmetrical embedding watt end faces is greater than upper, the external diameter of lower embedding watt gland, embedding watt upper end is the gentle tapers surface, the lower end is a flat surface vertical with axis, embedding watt matches with the caulking groove that described fracturing sliding bush inner sliding pipe middle part arranges, be a through hole in the middle of the mandrel, its upper end is connected with leather cup pressure cap 13 by screw thread.
Be set with sealing ring 17 and an opening up leather cup 14 on the periphery wall of leather cup pressure cap middle part, arranging in the leather cup and vulcanization of rubber distinguish steel disc 15 and steel loop 16 together, steel disc and steel ring welding consist of leather cup muscles and bones together, are a through hole in the middle of the leather cup pressure cap.
Pressure balancing stem 11 with fishing head is upper coarse and lower fine, be set with rectangular seal 12 on the straight shoulder between thick bar and the thin bar, thin bar is passed the central aperture of leather cup pressure cap and mandrel, its underpart is being set with Compress Spring 23, and the spring pressure cap 24 that this Compress Spring is screwed in by screw thread on the thin bar is compressed between spring pressure cap upper surface and the mandrel lower surface.
Using method
Instrument enters well: a plurality of closed condition fracturing sliding bushs (as shown in Figure 1) that are in are gone into the well sequentially the more long more tube of groove post lower end according to the length arrangement of inner sliding pipe cannelure.Each sliding sleeve and oil pipe and hydraulic packer connect into well by working design, and tubing string is a ball-and-seat bottom.
Open nethermost (first) fracturing sliding bush: drop into the opener (as shown in Figure 2) corresponding with next stage sliding sleeve in the oil pipe, then with pump truck this implement pump is delivered to the target sliding sleeve.Because under forward (from the top down) pressure-acting, leather cup is adjacent to tube inner wall, rectangular seal is with the clearance seal between balancing pole and the leather cup pressure cap, and whole opener forms the stopper of a sealing, is easy to be pumped to the target sliding sleeve.When the sliding sleeve before the opener process target sliding sleeve, owing to the length of embedding watt length greater than the annular caulking groove on each sliding sleeve inner sliding pipe, so it can not fall in the caulking groove of other sliding sleeve.
When opener moves to target sliding sleeve inner sliding pipe middle part, embedding watt enters supporting with it caulking groove, (generation radial motion) watt opened in embedding under the effect of Compress Spring, in the embedded groove, because the lower end of annular caulking groove is flat surface, the lower end of embedding watt also is flat surface, opener just be stuck in can not continue in the groove descending.
Continue pump liquid in the oil pipe this moment, fluid pressure will constantly rise, and these pressure-actings watt pass to inner sliding pipe by mandrel and embedding on leather cup, balancing pole.When pressure was elevated to certain numerical value, the hydraulic packer on the tubing string was at first setting.When pressure rose to another higher numerical value, fixedly the shear pin of inner sliding pipe and urceolus was cut off, and inner sliding pipe comes downwards to position shown in Figure 3, and the sliding sleeve side opening is opened, and can carry out pressure break this moment to first paragraph.Sliding sleeve and opener are in state shown in Figure 4 after sliding sleeve is opened and in the whole fracturing process.
Weigh again in oil pipe after the first paragraph pressure break finishes and drop into the opener supporting with the second segment sliding sleeve, use with above-mentioned same method and open second sliding sleeve and second segment is carried out pressure break.And so forth until will to intend the whole pressure breaks of the interval of pressure break complete.
At last fracturing string is all proposed again to descend completion tubular column, perhaps salvage one by one with the coiled tubing of end band fishing tool or little oil pipe or the hollow rod opener that each sliding sleeve is corresponding.When fishing tool catch opener fishing head and on when carrying fishing head, very little power just can make the Compress Spring that is sleeved on the balancing pole further compress, rectangular seal leaves leather cup pressure cap upper surface, gap between balancing pole bottom thin bar and leather cup pressure cap and the mandrel centre bore is just with fluid communication about the leather cup, make pressure balance on the leather cup, be convenient to salvage opener.
It is complete to construct, and oil well can put into production.
Claims (7)
1. oilfield horizontal well multistage fracturing sliding bush, comprise tubulose urceolus (1), it is characterized in that: urceolus (1) upper end is box thread, the lower end is male thread, top arranges several side through hole (4), outer tube inner wall is slidingly matched and is being set with inner sliding pipe (3), the interval is being set with on the inner sliding pipe periphery wall, lower seal (2), (6), on, lower seal is positioned at side through hole (4) both sides it is sealed, on inner sliding pipe, one shear pin groove is set between the lower seal, the urceolus corresponding position is arranging the screw that shear pin is installed, by shear pin (5) inner sliding pipe and urceolus are fixed together, the inner sliding pipe middle part has annular caulking groove (7), the upper end of groove is the gentle tapers surface, the lower end is the flat surface vertical with axis, and the inner sliding pipe bottom is elastic card claw (8), and claw (8) external surface is arranging pawl; Lower contact (9) upper end is a box thread, and the lower end is a male thread, and the middle part inwall is arranging the ratchet (10) that can be meshed with said pawl, and lower contact (9) upper end is connected with urceolus (1) lower end by screw thread.
2. oilfield horizontal well multistage fracturing sliding bush according to claim 1, it is characterized in that: inner sliding pipe (3) is provided with annular caulking groove (7), and the caulking groove upper surface is conical surface, and the lower end is flat surface.
3. oilfield horizontal well multistage fracturing sliding bush according to claim 1, it is characterized in that: inner sliding pipe (3) lower end is provided with the elastic card claw (8) with pawl, the lower contact inwall is arranging ratchet (10), when sliding sleeve is opened, said pawl and ratchet are intermeshing, and anti-anti-skid sheath is closed again.
One kind with the power profit require 1 described oilfield horizontal well multistage fracturing sliding bush to support the use, to its opener of opening, it is characterized in that: uniform 4 grooves on the axial periphery wall at mandrel (18) middle part, Compress Spring (20) vertically is being set respectively in the groove, the upper spiral-lock of Compress Spring (20) embedding watt (21), the two ends of embedding watt (21) have respectively outward extending positioning boss, be threaded connection respectively on the mandrel (18) at embedding watt (21) two ends and be set with, lower embedding watt gland (19), (22), the positioning boss at embedding watt (21) two ends snaps in respectively, lower embedding watt gland (19), (22) in the end, distance between two symmetrical embedding watt (21) end faces is greater than upper, lower embedding watt gland (19), (22) external diameter, embedding watt (a 21) upper end is the gentle tapers surface, the lower end is a flat surface vertical with axis, embedding watt (21) matches with the caulking groove (7) that said oilfield horizontal well multistage fracturing sliding bush inner sliding pipe (3) middle part arranges, mandrel (18) center is a through hole, and the mandrel upper end is connected with leather cup pressure cap (13) by screw thread; Be set with sealing ring (17) and an opening up leather cup (14) on the periphery wall of leather cup pressure cap (13) middle part, arranging in the leather cup and vulcanization of rubber distinguish steel disc (15) and steel loop (16) together, steel disc and steel ring welding consist of leather cup muscles and bones together, and leather cup pressure cap center is a through hole; Pressure balancing stem (11) with fishing head is upper coarse and lower fine, be set with rectangular seal (12) on the straight shoulder between thick bar and the thin bar, thin bar is passed the central aperture of leather cup pressure cap and mandrel, its underpart is being set with Compress Spring (23), and the spring pressure cap (24) that this Compress Spring is screwed in by screw thread on the thin bar is compressed between spring pressure cap upper surface and the mandrel lower surface.
5. require 4 described sliding sleeve openers according to the power profit, it is characterized in that: watt (21) upper surface of the embedding on the mandrel (18) is conical surface, and the lower surface is flat surface.
6. require 4 described sliding sleeve openers according to the power profit, it is characterized in that: mandrel (18) upper end is threaded connection leather cup pressure cap (13), be set with sealing ring (17) and an opening up leather cup (14) on the periphery wall of leather cup pressure cap (13) middle part, arranging in the leather cup (14) and vulcanization of rubber distinguish steel disc (15) and steel loop (16) together.
7. require 4 described sliding sleeve openers according to the power profit, it is characterized in that: pressure balancing stem (11) top with fishing head is a short and thick circular cylinder bar, the bottom is an elongate cylinder bar, it is a plane shoulder between thick bar and the thin bar, be set with rectangular seal (12) on the shoulder, sealing ring (12) upper surface and thick bar lower surface offset, leather cup pressure cap upper surface is close in the lower end, elongate rod is passed the centre bore of leather cup pressure cap (13) and mandrel (18), its underpart is being set with Compress Spring (23), and the spring pressure cap (24) that this Compress Spring is screwed in by screw thread on the thin bar is compressed between spring pressure cap (24) upper surface and mandrel (18) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103025651A CN103032058A (en) | 2011-10-03 | 2011-10-03 | Horizontal multi-stage fracturing sliding sleeve of an oil field and opening tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103025651A CN103032058A (en) | 2011-10-03 | 2011-10-03 | Horizontal multi-stage fracturing sliding sleeve of an oil field and opening tool |
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| CN103032058A true CN103032058A (en) | 2013-04-10 |
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| CN2011103025651A Pending CN103032058A (en) | 2011-10-03 | 2011-10-03 | Horizontal multi-stage fracturing sliding sleeve of an oil field and opening tool |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632169A (en) * | 2013-11-15 | 2015-05-20 | 中国石油天然气股份有限公司 | Infinite-order fracturing sand blasting sliding sleeve and technological method |
| CN104790910A (en) * | 2015-05-06 | 2015-07-22 | 克拉玛依特隆石油技术有限公司 | Oil field hydraulic control multi-switching circulating valve and opening and closing tools |
| CN105672946A (en) * | 2016-01-20 | 2016-06-15 | 中国石油化工股份有限公司 | Elasticity limiting type full diameter switch sliding sleeve |
| CN105672947A (en) * | 2016-01-20 | 2016-06-15 | 中国石油化工股份有限公司 | Novel sliding sleeve, sliding sleeve opening tool and fracturing string |
| CN105822278A (en) * | 2016-05-20 | 2016-08-03 | 中石化石油工程技术服务有限公司 | Equal-drift-diameter staged fracturing device and method |
| CN107387037A (en) * | 2017-07-11 | 2017-11-24 | 中石化石油工程技术服务有限公司 | Screen casing self-lock switch control device |
| CN107989567A (en) * | 2018-01-16 | 2018-05-04 | 江苏航天鸿鹏数控机械有限公司 | Jet-preventing tool in a kind of abrasive perforating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201165861Y (en) * | 2008-01-25 | 2008-12-17 | 毛万里 | Oil field downhole fluid control valve and opening-closing tools |
| US20090065194A1 (en) * | 2007-09-07 | 2009-03-12 | Frazier W Lynn | Downhole Sliding Sleeve Combination Tool |
| GB2453238A (en) * | 2007-09-17 | 2009-04-01 | Schlumberger Holdings | A system for completing injector wells |
| CN201420536Y (en) * | 2009-06-08 | 2010-03-10 | 阜新市石油工具厂 | Well completion sliding sleeve fracturing valve |
| CN201924905U (en) * | 2010-12-23 | 2011-08-10 | 中国石油集团渤海钻探工程有限公司 | Differential pressure open sliding sleeve for horizontal well fracturing |
| CN202431261U (en) * | 2011-10-03 | 2012-09-12 | 克拉玛依特隆油田技术服务有限责任公司 | Oil field horizontal well multi-section press cracking slide sleeve and opening tool |
-
2011
- 2011-10-03 CN CN2011103025651A patent/CN103032058A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090065194A1 (en) * | 2007-09-07 | 2009-03-12 | Frazier W Lynn | Downhole Sliding Sleeve Combination Tool |
| GB2453238A (en) * | 2007-09-17 | 2009-04-01 | Schlumberger Holdings | A system for completing injector wells |
| CN201165861Y (en) * | 2008-01-25 | 2008-12-17 | 毛万里 | Oil field downhole fluid control valve and opening-closing tools |
| CN201420536Y (en) * | 2009-06-08 | 2010-03-10 | 阜新市石油工具厂 | Well completion sliding sleeve fracturing valve |
| CN201924905U (en) * | 2010-12-23 | 2011-08-10 | 中国石油集团渤海钻探工程有限公司 | Differential pressure open sliding sleeve for horizontal well fracturing |
| CN202431261U (en) * | 2011-10-03 | 2012-09-12 | 克拉玛依特隆油田技术服务有限责任公司 | Oil field horizontal well multi-section press cracking slide sleeve and opening tool |
Non-Patent Citations (1)
| Title |
|---|
| 韩永亮等: "水平井分段压裂滑套的研制与应用", 《石油机械》, vol. 39, no. 2, 10 February 2011 (2011-02-10) * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632169A (en) * | 2013-11-15 | 2015-05-20 | 中国石油天然气股份有限公司 | Infinite-order fracturing sand blasting sliding sleeve and technological method |
| CN104790910A (en) * | 2015-05-06 | 2015-07-22 | 克拉玛依特隆石油技术有限公司 | Oil field hydraulic control multi-switching circulating valve and opening and closing tools |
| CN104790910B (en) * | 2015-05-06 | 2017-08-25 | 克拉玛依特隆石油技术有限公司 | Oil field hydraulic controls multiple switching circulating valve and unlatching, closes instrument |
| CN105672946A (en) * | 2016-01-20 | 2016-06-15 | 中国石油化工股份有限公司 | Elasticity limiting type full diameter switch sliding sleeve |
| CN105672947A (en) * | 2016-01-20 | 2016-06-15 | 中国石油化工股份有限公司 | Novel sliding sleeve, sliding sleeve opening tool and fracturing string |
| CN105672946B (en) * | 2016-01-20 | 2020-03-24 | 中国石油化工股份有限公司 | Elastic limit type full-bore switch sliding sleeve |
| CN105822278A (en) * | 2016-05-20 | 2016-08-03 | 中石化石油工程技术服务有限公司 | Equal-drift-diameter staged fracturing device and method |
| CN107387037A (en) * | 2017-07-11 | 2017-11-24 | 中石化石油工程技术服务有限公司 | Screen casing self-lock switch control device |
| CN107989567A (en) * | 2018-01-16 | 2018-05-04 | 江苏航天鸿鹏数控机械有限公司 | Jet-preventing tool in a kind of abrasive perforating |
| CN107989567B (en) * | 2018-01-16 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Anti-blowout tool in sand blasting perforation |
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