CN102536160A - Ball seat type rubber plug system for liner cementing - Google Patents
Ball seat type rubber plug system for liner cementing Download PDFInfo
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- CN102536160A CN102536160A CN2010106039736A CN201010603973A CN102536160A CN 102536160 A CN102536160 A CN 102536160A CN 2010106039736 A CN2010106039736 A CN 2010106039736A CN 201010603973 A CN201010603973 A CN 201010603973A CN 102536160 A CN102536160 A CN 102536160A
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Abstract
The invention provides a ball seat type rubber plug system for liner cementing. The ball seat type rubber plug system comprises a drill rod rubber plug, a tail pipe rubber plug and a bearing seat (4), wherein the drill rod rubber plug is fed from a well mouth at the time of mud displacement, the tail pipe rubber plug is placed below a feeding tool, and the bearing seat (4) is located at the bottom of a tail pipe. The ball seat type rubber plug system is characterized in that the tail pipe rubber plug is a ball seat type tail pipe rubber plug, an expansion ball seat (13) is installed at the bottom of the tail pipe rubber plug, the bottom end of the expansion ball seat (13) is of an elastic closing-in structure, and the elastic closing-in structure is opened due to deformation when pressure meets the needs. By adopting the ball seat type rubber plug system provided by the invention, the ball falling time is reduced, the collision frequency between the ball and tail pipe bunches in the ball falling process is reduced, the difficulty of easiness in sticking and blocking when tripping balls in a extended reach well pass through a building section or tangent section at the bottom of the tail pipe is solved, the operation time is saved, the balls are protected, the sealing effect is improved, the displacement efficiency is effectively improved, the well cementation success rate is improved, the drilling time is saved and the drilling cost is lowered.
Description
Technical field
The invention belongs to the well cementation field in the petroleum gas engineering, be specifically related to a kind of drilling liner cementing and use the spherically seated rubber plug system.
Background technology
Along with the development of petroleum industry and Oilfield developing, extended reach well are more and more.How to guarantee the drilling liner cementing quality of these complicated wells, a great problem that the person that is the field operation faces.
At present, domestic drilling liner cementing instrument is generally the hydraulic pressure extension hanger.In the well cementation process, for the shutoff pressure channel, produce hydraulic coupling and sit the extension hanger, need carry out the pitching operation.And falling into the process of ball seat at ball, possibly produce collision when falling in tubing string owing to ball influences sealing effectiveness.In addition, the length of ball distance of fall also directly influences the well cementing operation time.And at present conventional drilling liner cementing technology is arranged at well cementation pipe string, normally the Position Design of ball seat in the tail pipe bottom.Therefore, along with the continuous prolongation of the degree of depth of deep-well, ultradeep well, time that ball falls and distance are also more and more longer.And ball is also more and more with the collision frequency of managing string in dropping process, and sealing effectiveness receives very big influence.
In extended reach well, because ball seat is placed in pipe string bottom, ball not only will pass through the straight well section when well head falls, and equally also will pass through lower curved section, or even horizontal segment, and this has just strengthened the risk factor when ball falls.What is more, throws several balls and all fall less than the ball seat position, can't form sealing, thereby cause the well cementing operation failure.
In well cementing operation, behind the cemented up with the drilling rod plug for slurry, the drilling rod plug replaces out behind the drilling tool compound with the tail pipe plug, compound back hydraulic coupling cuts that to take off the tail pipe plug descending together, drops to ball seat place, tail pipe bottom.At tail pipe plug and drilling rod plug compound tense, working method commonly used at present is to lock after the drilling rod plug sticks into the tail pipe plug, and the back that becomes one falls.After well cementation, bore when removing and bore the time of removing increase owing to no rotation-preventing mechanism makes.It is extremely low that brill removes efficient, also needs sometimes more to bore down again behind the bit change, caused the waste on time and the resource.
Summary of the invention
The objective of the invention is to solve a difficult problem that exists in the above-mentioned prior art; Provide a kind of drilling liner cementing to use the spherically seated rubber plug system; Reduce the fall time of ball, solve a difficult problem of gluing card easily when the ball that builds the pressure in the extended reach well is crossed tail pipe bottom inclination section or steady tilted section, reduce annex and bore the time of removing.
The present invention realizes through following technical scheme:
A kind of drilling liner cementing is used the spherically seated rubber plug system, comprises drilling rod plug, tail pipe plug and support seat 4, the drilling rod plug for when slurry from the well head input, and the tail pipe plug is placed in the running tool below, support seat 4 is positioned at the tail pipe bottom, it is characterized in that:
Said tail pipe plug is a spherically seated tail pipe plug, and it is elasticity closing in expansion of structure ball seat 13 that the bottom is equipped with in its bottom.
Described tail pipe plug comprises top connection 5, block 6, core body 7, tail pipe plug leather cup 8, back-up ring 9, sliding sleeve 10, connector 11, shear pin 12, expansion ball seat 13 and anti-rotation jump ring 14 from top to bottom successively; Wherein,
Described top connection 5 is connected with running tool; The outer wall on said expansion ball seat 13 tops is fixed in the bottom of connector 11, and on the outer wall of the bottom of connector 11, the retaining mechanism of anti-rotation jump ring 14 as the tail pipe plug is housed.
Said core body 7 is a hollow structure, and the upper end of said core body 7 is fixed on the bottom of top connection 5 through block 6, and the lower end is through being threaded onto in the connector 11.
In core body 7, be set with sliding sleeve 10, said sliding sleeve 10 is fixed on the upper inside wall of connector 11 through one group of shear pin 12 on the outer wall of bottom.
Having block groove and block hole in the top connection 5 of the overlapping of said top connection 5 and core body 7 with on the core body 7, said block 6 places that said block hole, an end are against on the sliding sleeve 10, the other end snaps in the block groove.
Sulfuration has tail pipe plug leather cup 8 on the external surface of the core body 7 between said top connection 5 and the connector 11, between adjacent two tail pipe plug leather cups 8, back-up ring 9 is housed.
In the endoporus of said sliding sleeve 10 upper ends, be processed with rib.
Said drilling rod plug comprises the sulfuration of drilling rod plug leather cup 1, drilling rod rubber plug body 2 and anti-back jump ring 3; Wherein,
Guiding position in described drilling rod rubber plug body 2 bottoms is provided with anti-back jump ring 3;
Maximum cylindrical place is processed with the rotation-preventing mechanism of rib as the drilling rod plug on described drilling rod rubber plug body 2.
Described tail pipe plug bottom is provided with tail pipe plug rotation-preventing mechanism 16;
Said tail pipe plug rotation-preventing mechanism 16 is the rib of the oblique protrusion on the cylindrical;
Be provided with support seat rotation-preventing mechanism 17 and support seat retaining mechanism 18 in the endoporus of said support seat 4;
Said support seat rotation-preventing mechanism 17 is the rib of the oblique protrusion in the endoporus;
Said support seat retaining mechanism 18 is the jump ring groove.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the spherically seated rubber plug system among application the present invention can make to move on to tail pipe string top on the ball seat position, makes ball can arrive ball seat without whole tail pipe string and realizes building the pressure; Reduced the fall time of ball; Reduced ball in the whereabouts with the collision frequency of tail pipe string, the difficult problem of sticking card easily when having solved the ball that builds the pressure in the extended reach well and crossing tail pipe bottom inclination section or steady tilted section has been protected spheroid; Improve sealing effectiveness, also saved the well cementing operation time simultaneously;
(2) between tail pipe plug and the drilling rod plug, all has retaining mechanism between tail pipe plug and the support seat; Can prevent effectively that when boring plug from rotating except that operation; The attachment of reduce to bore removing the time and not having a rotation-preventing mechanism can be practiced thrift when boring about 20-50%, greatly reduces the well cementation cost;
(3) utilize the present invention not only can improve complicated well drilling liner cementing quality such as deep-well, ultradeep well, extended reach well, solve a complicated well well cementation difficult problem, and advanced the production domesticization process of the drilling liner cementing technology of complex hole condition.
Description of drawings
Fig. 1 is a drilling rod plug structural representation of the present invention.
Fig. 2 is the structural representation of support seat of the present invention.
Fig. 3 is a tail pipe plug structural representation of the present invention.
Fig. 4-the 1st, the rotation-preventing mechanism of tail pipe plug and retaining mechanism sketch map among the present invention.
Fig. 4-the 2nd, the rotation-preventing mechanism of support seat and retaining mechanism sketch map among the present invention.
Fig. 4-the 3rd, among the present invention tail pipe plug and support seat in the course of the work cooperate sketch map.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail:
Spherically seated rubber plug system among the present invention is divided into three parts according to the riding position in well cementation pipe string is different, and the drilling rod plug that promptly for slurry the time, drops into from well head is placed in the tail pipe plug and the support seat that is positioned at the tail pipe bottom of running tool below.
Innovative point of the present invention is: the locking and the rotation-preventing mechanism of holder ball mechanism, drilling rod plug and the tail pipe plug of tail pipe plug, and the anti-rotation and the retaining mechanism of tail pipe plug and support seat, concrete structure is following:
1, as shown in Figure 1, the drilling rod plug comprises the sulfuration of drilling rod plug leather cup 1, drilling rod rubber plug body 2 and anti-back jump ring 3.Wherein,
Drilling rod plug of the present invention sulfuration leather cup 1 is for whole sulfuration forms, and promptly all elastomeric materials all vulcanize in that (so-called whole sulfuration is meant that drilling rod plug sulfuration leather cup 1 is adhering on the drilling rod rubber plug body 2 through behind the high temperature, and the two becomes one on the drilling rod rubber plug body 2.), whole sulfuration has high strength, and the characteristics that difficulty is pulled apart can effectively prevent accidental, make drilling rod plug sulfuration leather cup 1 can not fall by glue the well cementation accident that the drilling rod plug leather cup that in the well cementation process, has occurred before having avoided fully comes off.
Guiding position in drilling rod rubber plug body 2 bottoms is equipped with anti-back jump ring 3, on drilling rod rubber plug body 2, rotation-preventing mechanism is arranged, specifically; The rotation-preventing mechanism of said drilling rod plug is for being processed with several ribs (can adopt 4 ribs among the embodiment, processing method can adopt the mode of milling) on the maximum cylindrical on drilling rod rubber plug body 2, in the endoporus of sliding sleeve 10 upper ends of said tail pipe plug, be processed with the rib of equal amount equally; After drilling rod plug and tail pipe plug were compound, two-part rib intersected, and formed self-locking; Prevent that plug from circumferentially rotating, simultaneously, the anti-back jump ring 3 in the drilling rod plug is the opening circulus; Be placed on the rubber plug body in the drilling rod plug, after drilling rod plug and tail pipe plug were compound, anti-back jump ring 3 can stick in the sliding sleeve 10 in the tail pipe plug; Prevent that the drilling rod plug from moving up and down; Rotation-preventing mechanism and anti-back jump ring 3 act on simultaneously like this, can be locked fully after the drilling rod plug gets into the tail pipe plug, and in boring the process of removing, can not rotate; Can prevent the relative motion between drilling rod plug and the tail pipe plug, improve the reliability of drilling rod plug greatly.
2, as shown in Figure 3, spherically seated tail pipe plug comprises block 6, core body 7, tail pipe plug leather cup 8, back-up ring 9, sliding sleeve 10, connector 11, shear pin 12, expansion ball seat 13 and anti-rotation jump ring 14.
The top of said spherically seated tail pipe plug is connected with running tool through top connection 5, and it is elasticity closing in expansion of structure ball seat 13 that the bottom is equipped with in the bottom.
Said core body 7 is a hollow structure, and the upper end of said core body 7 is fixed on the bottom of top connection 5 through block 6, and the lower end is through being threaded onto in the connector 11; In core body 7, be set with sliding sleeve 10, said sliding sleeve 10 is fixed on the upper inside wall of connector 11 through one group on the outer wall of bottom (adopting 6 among the embodiment is uniformly distributed along the circumference) shear pin 12; Having block groove and block hole in the top connection 5 of the overlapping of said top connection 5 and core body 7 with on the core body 7, said block 6 places said block hole, and an end of said block 6 is against on the sliding sleeve 10, and the other end snaps in the block groove.
The outer wall on said expansion ball seat 13 tops is fixed in the bottom of connector 11 through screw thread; And the retaining mechanism of anti-rotation jump ring 14 as the tail pipe plug is housed on the outer wall of the bottom of connector 11.
Sulfuration has tail pipe plug leather cup 8 on the external surface of the core body 7 between said top connection 5 and the connector 11, between adjacent two tail pipe plug leather cups 8, back-up ring 9 is housed, and the effect of back-up ring 9 is fixing and supports the plug leather cup.
In the endoporus of said sliding sleeve 10 upper ends, be processed with rib.
3, as shown in Figure 2, mainly acting as of support seat 4 received and plug, and when ball 15 drops to support seat 4 from tail pipe, the gaily decorated basket of the below of support seat 4 can be caught the ball, and prevents that ball from dropping to the float collar top; After drilling rod plug and tail pipe plug are compound, fall together; Fall into the support seat 4 of tail pipe bottom; Shown in Fig. 4-3; This moment, the anti-rotation jump ring 14 of tail pipe plug can snap in formation self-locking in the support seat 4, and the rotation-preventing mechanism on the tail pipe plug also can mesh with the rotation-preventing mechanism of support seat 4 simultaneously, does not have relative motion so between the two.Concrete structure is shown in Fig. 4-1; The tail pipe plug is provided with tail pipe plug rotation-preventing mechanism 16 and retaining mechanism; Wherein tail pipe plug rotation-preventing mechanism 16 is the rib of several (adopting 2 among the embodiment) the oblique protrusions on the cylindrical, and retaining mechanism is the anti-rotation jump ring 14 of toothed.The shell of said support seat 4 is connected with sleeve pipe; Shown in Fig. 4-2; The position that is used with the tail pipe plug is support seat rotation-preventing mechanism 17 and support seat retaining mechanism 18, and wherein, support seat rotation-preventing mechanism 17 is the rib of oblique protrusion in the endoporus; Rib quantity equates that with the quantity of tail pipe plug rotation-preventing mechanism 16 center ribs support seat retaining mechanism 18 is a zigzag jump ring groove.After the tail pipe plug falls into support seat 4; The rib of tail pipe plug rotation-preventing mechanism 16 and support seat rotation-preventing mechanism 17 intersects, and forms locking, prevents that plug from circumferentially rotating; And anti-rotation jump ring 14 snaps in the zigzag jump ring groove of support seat; Form locking, prevent the plug axial float, all annexes of well cementation back all can bore fast and remove like this.
The course of work of the present invention is following: under hanger to the design well location after, pitching, this moment since spherically seated tail pipe plug in the bottom of drilling tool, the top of tail pipe, so the distance of fall of ball 15 is merely the length of drilling tool, shortened the distance of fall of ball 15 greatly.Fall into the expansion ball seat 13 of spherically seated tail pipe plug when ball 15 after, form sealing, continue pressurization, sit and hang hanger.Continue pressurization, releasing gadget is slipped out of the hand, and continues pressurization, after pressure that expansion ball seat 13 receives acquires a certain degree, (is meant that to a certain degree pressure reaches 18-20Mpa, the pressure that this force value provides for the drilling well circulating system.), plastic strain takes place, ball 15 can expose from expansion ball seat 13, falls into the support seat 4 of tail pipe bottom, forms circulation canal.
When replacing slurry with the drilling rod plug, after the drilling rod plug fell into spherically seated tail pipe plug, the drilling rod plug fell among the sliding sleeve 10, and self-locking with it, and the drilling rod plug can not be moved up and down or axial rotation; Simultaneously drilling rod plug and spherically seated tail pipe plug one work, shutoff circulation canal, produced pressure differential; Along with the increase of pressure, shear pin 12 is cut off, and sliding sleeve 10 slides downwards; Abdicate the position of block 6, block 6 is shunk, spherically seated tail pipe plug and drilling rod plug drop to support seat 4 places, shaft bottom together; In this process, have self-protection function, promptly fall into spherically seated tail pipe plug like no drilling rod plug, then spherically seated tail pipe plug does not stress; Shear pin 12 can not cut off, and spherically seated tail pipe plug can't fall, avoided like this in the cementing operation process agitating owing to pressure or instantaneous high pressure extracts spherically seated tail pipe plug to come off maybe.
The main effect of drilling rod plug sulfuration leather cup 1 and tail pipe plug leather cup 8 is Sealed casing pipe or drilling rod; Multiple self-locking mechanism and anti-back mechanism (being the self-locking of drilling rod plug and tail pipe plug and the self-locking and the anti-back of anti-back and tail pipe plug and support seat 4); Specifically; Anti-back jump ring 3, sliding sleeve 10, anti-rotation jump ring 14 and support seat 4 can form multiple self-locking; Make between tail pipe plug, drilling rod plug and the support seat 4 and can not move up and down, can not circumferentially rotate; The effect of ball 15 is to build the pressure to sit to hang hanger and other some hydraulic operations.In a word, system of the present invention can realize each item function in the well cementing operation preferably.
Through to prototype test of the present invention, record ball seat and build the pressure and suppress logical ball seat after reaching 18MPa, set up circulation; The anti-rotation self-locking mechanism is locked with drilling rod plug, tail pipe plug and support seat 4, does not have and circumferentially rotates or axial float.Compare with common tail pipe plug, reduced the distance of fall of ball, saved action time, improved sealing effectiveness, reduced and bored the time of removing.
Technique scheme is one embodiment of the present invention; For those skilled in the art; On the basis that the invention discloses application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described method of the above-mentioned specific embodiment of the present invention; Therefore the mode of front description is preferably, and does not have restrictive meaning.
Claims (9)
1. a drilling liner cementing is used the spherically seated rubber plug system, comprises drilling rod plug, tail pipe plug and support seat (4), the drilling rod plug for when slurry from the well head input, and the tail pipe plug is placed in the running tool below, support seat (4) is positioned at the tail pipe bottom, it is characterized in that:
Said tail pipe plug is a spherically seated tail pipe plug, and it is elasticity closing in expansion of structure ball seat (13) that the bottom is equipped with in its bottom.
2. drilling liner cementing according to claim 1 is used the spherically seated rubber plug system, it is characterized in that:
Described tail pipe plug comprises top connection (5), block (6), core body (7), tail pipe plug leather cup (8), back-up ring (9), sliding sleeve (10), connector (11), shear pin (12), expansion ball seat (13) and anti-rotation jump ring (14) from top to bottom successively; Wherein,
Described top connection (5) is connected with running tool; The outer wall on said expansion ball seat (13) top is fixed in the bottom of connector (11), and the retaining mechanism of anti-rotation jump ring (14) as the tail pipe plug is housed on the bottom outer wall of connector (11).
3. drilling liner cementing according to claim 2 is used the spherically seated rubber plug system, it is characterized in that:
Said core body (7) is a hollow structure, and the upper end of said core body (7) is fixed on the bottom of top connection (5) through block (6), and the lower end is through being threaded onto in the connector (11);
In core body (7), be set with sliding sleeve (10), said sliding sleeve (10) is fixed on the upper inside wall of connector (11) through the one group of shear pin (12) on the outer wall of bottom.
4. drilling liner cementing according to claim 3 is used the spherically seated rubber plug system, it is characterized in that:
The top connection (5) of the overlapping of said top connection (5) and core body (7) go up with core body (7) on have block groove and block hole, said block (6) places that said block hole, an end are against on the sliding sleeve (10), the other end snaps in the block groove.
5. drilling liner cementing according to claim 4 is used the spherically seated rubber plug system, it is characterized in that:
Sulfuration has tail pipe plug leather cup (8) on the external surface of the core body (7) between said top connection (5) and the connector (11), and back-up ring (9) is housed between adjacent two tail pipe plug leather cups (8).
6. drilling liner cementing according to claim 5 is used the spherically seated rubber plug system, it is characterized in that: in the endoporus of said sliding sleeve (10) upper end, be processed with rib.
7. drilling liner cementing according to claim 1 is used the spherically seated rubber plug system, it is characterized in that:
Said drilling rod plug comprises the sulfuration of drilling rod plug leather cup (1), drilling rod rubber plug body (2) and anti-back jump ring (3); Wherein,
Guiding position in described drilling rod rubber plug body (2) bottom is provided with anti-back jump ring (3);
Go up maximum cylindrical place in described drilling rod rubber plug body (2) and be processed with the rotation-preventing mechanism of rib as the drilling rod plug.
8. drilling liner cementing according to claim 1 is used the spherically seated rubber plug system, it is characterized in that:
Described tail pipe plug bottom is provided with tail pipe plug rotation-preventing mechanism (16);
Said tail pipe plug rotation-preventing mechanism (16) is the rib of the oblique protrusion on the cylindrical.
9. drilling liner cementing according to claim 1 is used the spherically seated rubber plug system, it is characterized in that:
Be provided with support seat rotation-preventing mechanism (17) and support seat retaining mechanism (18) in the endoporus of said support seat (4);
Said support seat rotation-preventing mechanism (17) is the rib of the oblique protrusion in the endoporus;
Said support seat retaining mechanism (18) is the jump ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106039736A CN102536160A (en) | 2010-12-24 | 2010-12-24 | Ball seat type rubber plug system for liner cementing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106039736A CN102536160A (en) | 2010-12-24 | 2010-12-24 | Ball seat type rubber plug system for liner cementing |
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| CN102536160A true CN102536160A (en) | 2012-07-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064949A (en) * | 2015-08-05 | 2015-11-18 | 中国石油集团川庆钻探工程有限公司 | Cement slurry backflow preventing device for drilling liner cementing |
| CN105604517A (en) * | 2016-02-23 | 2016-05-25 | 中国石油化工股份有限公司 | Casing pipe patching relay type cement paste replacement device |
| CN105756615A (en) * | 2014-12-16 | 2016-07-13 | 中国石油化工股份有限公司 | Rubber plug assembly combining device |
| CN106555567A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | High angle hole, horizontal cementing abrasionproof plug |
| CN108868689A (en) * | 2018-09-18 | 2018-11-23 | 中国石油集团西部钻探工程有限公司 | Remove the tail pipe rubber plug device of cement slurry in parts casing pipe under drilling liner cementing block ring |
| CN109236220A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团工程技术研究院有限公司 | One kind is exempted to be buckled to rotary tail running tool and method |
| CN111980624A (en) * | 2020-09-08 | 2020-11-24 | 中国石油天然气集团有限公司 | Ball seat and rubber plug integrated assembly and using method thereof |
| CN113250652A (en) * | 2021-06-21 | 2021-08-13 | 东营市瑞丰石油技术发展有限责任公司 | Integrated seat-sealed ball seat type well cementation rubber plug |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373556Y (en) * | 1998-12-01 | 2000-04-12 | 辽河石油勘探局钻采工艺研究院 | Hydraulic well completion tubular column suspension device |
| CN2556359Y (en) * | 2002-06-18 | 2003-06-18 | 大庆石油管理局 | Suspension liner two-stage cementing pipe string |
| CN2881078Y (en) * | 2006-04-10 | 2007-03-21 | 新疆石油管理局钻井工艺研究院 | Self-locking rubber plug |
| US7341111B2 (en) * | 2005-05-26 | 2008-03-11 | Tiw Corporation | Expandable bridge plug and setting assembly |
| CN101482001A (en) * | 2008-01-11 | 2009-07-15 | 中国石油化工股份有限公司 | Rubber plug system used for drilling liner cementing of horizontal well |
| CN101598006A (en) * | 2009-07-17 | 2009-12-09 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | A kind of hydraulic buckling type tail pipe hanger |
| US20100155050A1 (en) * | 2008-12-23 | 2010-06-24 | Frazier W Lynn | Down hole tool |
-
2010
- 2010-12-24 CN CN2010106039736A patent/CN102536160A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373556Y (en) * | 1998-12-01 | 2000-04-12 | 辽河石油勘探局钻采工艺研究院 | Hydraulic well completion tubular column suspension device |
| CN2556359Y (en) * | 2002-06-18 | 2003-06-18 | 大庆石油管理局 | Suspension liner two-stage cementing pipe string |
| US7341111B2 (en) * | 2005-05-26 | 2008-03-11 | Tiw Corporation | Expandable bridge plug and setting assembly |
| CN2881078Y (en) * | 2006-04-10 | 2007-03-21 | 新疆石油管理局钻井工艺研究院 | Self-locking rubber plug |
| CN101482001A (en) * | 2008-01-11 | 2009-07-15 | 中国石油化工股份有限公司 | Rubber plug system used for drilling liner cementing of horizontal well |
| US20100155050A1 (en) * | 2008-12-23 | 2010-06-24 | Frazier W Lynn | Down hole tool |
| CN101598006A (en) * | 2009-07-17 | 2009-12-09 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | A kind of hydraulic buckling type tail pipe hanger |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756615A (en) * | 2014-12-16 | 2016-07-13 | 中国石油化工股份有限公司 | Rubber plug assembly combining device |
| CN105756615B (en) * | 2014-12-16 | 2018-05-29 | 中国石油化工股份有限公司 | Rubber plug component set composite |
| CN105064949A (en) * | 2015-08-05 | 2015-11-18 | 中国石油集团川庆钻探工程有限公司 | Cement slurry backflow preventing device for drilling liner cementing |
| CN105064949B (en) * | 2015-08-05 | 2017-12-26 | 中国石油集团川庆钻探工程有限公司 | Drilling liner cementing cement mortar back-flow preventer |
| CN106555567A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | High angle hole, horizontal cementing abrasionproof plug |
| CN105604517A (en) * | 2016-02-23 | 2016-05-25 | 中国石油化工股份有限公司 | Casing pipe patching relay type cement paste replacement device |
| CN108868689A (en) * | 2018-09-18 | 2018-11-23 | 中国石油集团西部钻探工程有限公司 | Remove the tail pipe rubber plug device of cement slurry in parts casing pipe under drilling liner cementing block ring |
| CN108868689B (en) * | 2018-09-18 | 2023-08-29 | 中国石油天然气集团有限公司 | Tail pipe rubber plug device for removing cement paste in sleeve at lower part of tail pipe well cementation choke ring |
| CN109236220A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团工程技术研究院有限公司 | One kind is exempted to be buckled to rotary tail running tool and method |
| CN109236220B (en) * | 2018-11-28 | 2023-09-12 | 中国石油天然气集团有限公司 | Back-off-free rotary tail pipe running tool and method |
| CN111980624A (en) * | 2020-09-08 | 2020-11-24 | 中国石油天然气集团有限公司 | Ball seat and rubber plug integrated assembly and using method thereof |
| CN113250652A (en) * | 2021-06-21 | 2021-08-13 | 东营市瑞丰石油技术发展有限责任公司 | Integrated seat-sealed ball seat type well cementation rubber plug |
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Application publication date: 20120704 |