CN103470199A - Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same - Google Patents
Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same Download PDFInfo
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- CN103470199A CN103470199A CN2013104472242A CN201310447224A CN103470199A CN 103470199 A CN103470199 A CN 103470199A CN 2013104472242 A CN2013104472242 A CN 2013104472242A CN 201310447224 A CN201310447224 A CN 201310447224A CN 103470199 A CN103470199 A CN 103470199A
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Abstract
The invention relates to a reversing slide sleeve, a sand washing operation device and a sand washing operation method adopting the sand washing operation device. The reversing slide sleeve is arranged between an oil pipe and a water tap and mainly comprises a reducing coupling, a center tube and a sliding sleeve, wherein the center tube is a circular tube with a center through hole, the reducing coupling is sleeved on the periphery of the head end of the center tube, and two lateral through holes which run through along the diameter are formed between the middle point and tail end of the center tube; the sliding sleeve is sleeved on the center tube and is provided with a pair of sliding sleeve holes which run through along the diameter; the wall face of the sliding sleeve covers the through holes when the sliding sleeve is in an initial closed state, and the sliding sleeve holes and the through holes are correspondingly communicated so as to form a passage vertical to the axis of the center tube when the sliding sleeve moves to the head end of the center tube due to stress; sealing rings are respectively arranged on the external wall of the center tube at the axial two sides of the lateral through holes, and a sealed structure is formed by the sealing rings, the sliding sleeve and the center tube; a locking ring is sleeved on the center tube, tightly adjacent to the sliding sleeve, between the reducing coupling and the sliding sleeve. When a single is replaced during continuous sand washing operation, the operation without pump stopping can be carried out, and sand blockage or sand stagnation is avoided.
Description
Technical field
The invention belongs to the oil drilling machine field, be specifically related to a kind of when making up a joint for commutation sliding sleeve, the sand washing apparatus for work of continuous sand flushing and adopt its sand washing operational method.
Background technology
Current sand washing operation, often sweep away an oil pipe, must well-flushing a period of time or wash clean after, must termination of pumping, make up a joint, construction can not be carried out continuously, this wherein exists very large problem and risk:
1. termination of pumping, while making up a joint, the sand rushed can fall after rise, easily causes the accident of sand plug or sand card tubing string.Particularly high angle hole, horizontal well, the risk of card tubing string is larger.
2. one single owing to often connecing, must termination of pumping, and want well-flushing a period of time or the floating sand of wash clean before termination of pumping, and can extend like this sand washing time, increase water supply volume, reduction sand washing efficiency, affect the sand washing quality.
3. low well and the well of foam solution sand washing for strata pressure, set up circulation and be not easy very much, and sand washing contradiction is more outstanding.The sand cleaning fluid consumption increases, more sand cleaning fluid enters stratum, pollutes.
Summary of the invention
The technical problem to be solved in the present invention is: the defect of for overcoming termination of pumping in the sand washing operation process, changing the single inefficiency of bringing, environment pollution, having again security risk, a kind of sliding sleeve that commutates, sand washing apparatus for work are provided and adopt its sand washing operational method, in the sand washing operation, change when single, can not termination of pumping operation and avoid into sand plug or the sand card.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of commutation sliding sleeve is characterised in that: be arranged between oil pipe and water tap, mainly comprise adapter coupling, central tube, sliding sleeve; The pipe of through hole is set centered by central tube, the peripheral socket of the head end of central tube adapter coupling, the mid point of central tube is to arranging two between tail end along the through side direction through hole of diameter; Sliding sleeve is nested with on central tube and arranges a pair of along the through sliding sleeving hole of diameter; The wall of sliding sleeve sliding sleeve when initial closed state covers through hole, and when the stressed past central tube head end of sliding sleeve moves, sliding sleeving hole connection corresponding with through hole forms a passage vertical with the central tube axis; Sealing ring is set respectively on the central tube outer wall of the axial both sides of side direction through hole and forms hermetically-sealed construction with sliding sleeve and central tube; Between adapter coupling and sliding sleeve, on central tube, next-door neighbour's sliding sleeve is nested with lock ring.
By technique scheme, two sealing rings respectively are set on the central tube outer wall of the axial both sides of side direction through hole; The limit point place arranges a sealing ring.
By technique scheme, described limit point place arranges limiting rivet.
By technique scheme, described lock ring is locking nut.
A kind of sand washing apparatus for work that adopts above-mentioned commutation sliding sleeve, is characterized in that, from top to bottom the cock of opening and the commutation sliding sleeve that is initially closed condition is arranged between oil pipe and water tap, and the bottom of commutation sliding sleeve is socketed self-styled and wellhead tee joint successively; Wellhead tee joint below next-door neighbour arranges blowout preventer and four-way; At the peripheral elevator with hanger that arranges of commutation sliding sleeve.
A kind of sand washing operational method that adopts above-mentioned sand washing apparatus for work, is characterized in that the sand washing process continuously and not termination of pumping; After the commutation sliding sleeve is vertically placed and is arrived precalculated position, will be threaded to the limit point place on lock ring, enter when self-styled that the side direction through hole that relies on self-sealing rubber core frictional force to make sliding sleeving hole and central tube is corresponding opens interconnection thereby slide over, realize the change of liquid flow path direction; After having made up a joint, the tubing string of above carrying central tube proposes sliding sleeve, slides over to leave when self-styled to rely on self-sealing rubber core frictional force to close interconnection, returns lock ring to the sliding sleeve upper surface and locking, then can normally rinse.
By technique scheme, the sand washing operational method is specific as follows:
After the commutation sliding sleeve is installed, centre bore in the single arrival sliding sleeve rinsed is gone forward side by side when self-styled, limit point will be threaded on lock ring, close blowout preventer, the outlet of unlatching wellhead tee joint, the tubing string of sliding sleeve central tube of commutating is again transferred and is seated at from sealing up, and the outer sliding sleeve 5 of commutation sliding sleeve is relatively up and open interconnection under self-styled self-sealing rubber core effect; Close the cock at top, the returning fluid that the sand cleaning fluid entered from bottom four-way import like this enters oil pipe just, under not termination of pumping prerequisite, changes its course and is returned out by wellhead tee joint again, and well head just can descend single;
After single connecting, first open cock, carry the tubing string setpoint distance of central tube again, slide over relatively descending under the self-sealing rubber core effect and close interconnection, to be threaded to the locking of sliding sleeve upper surface under lock ring again, now close again well head threeway outlet, open blowout preventer, can start second sand washing, so just can the construction of not termination of pumping of reality continuous sand flushing.
With respect to existing sand flushing device and method, the present invention has following beneficial effect:
A, use commutation sliding sleeve form continuous sand flushing device, simple in structure, and stable performance is handy flexibly, easy and simple to handle, shortens the sand washing time, alleviates labor strength.
B, can be in the situation that not termination of pumping, changing-over is single, thereby realizes continuous sand flushing, has improved sand washing operating efficiency and quality.
C, be conducive to sand cleaning fluid and carry sand and return out fast continuously, avoid changing because of termination of pumping the risk of the single sand setting card tubing string caused, can alleviate the pollution of sand cleaning fluid to stratum simultaneously.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, with each embodiment, the invention will be further described.
Fig. 1 is commutation shift sleeve structure schematic diagram of the present invention;
Fig. 2 is that commutation sliding sleeve of the present invention or sand washing apparatus for work are installed and used figure while carrying out continuous sand flushing;
In each figure, accompanying drawing is described as follows: 1: adapter coupling 1,2: central tube, 2.1: through hole, 3: limit point, 3.1: sealing ring, 4: lock ring, 5: sliding sleeve, 5.1: hole, 6: commutation sliding sleeve, 7: elevator, 8: cock, 9: water tap, 10: self-styled, 11 wellhead tee joints, 12: blowout preventer, 13: four-way, 14: oil pipe.
The specific embodiment
Below in conjunction with accompanying drawing and example, the present invention is further detailed explanation.
Commutation sliding sleeve 6 as illustrated in fig. 1 and 2, be arranged between oil pipe and water tap, it is characterized in that: mainly comprise adapter coupling 1, central tube 2, sliding sleeve 5; The pipe of through hole is set centered by central tube 2, the peripheral socket of the head end of central tube 2 adapter coupling 1, the mid point of central tube 2 is to arranging two between tail end along the through through hole 2.1 of diameter; Sliding sleeve 5 is nested with on central tube 2 and arranges a pair of along the through hole 5.1 of diameter; The wall of sliding sleeve 5 sliding sleeve 5 when initial closed state covers through hole 2.1, when stressed past central tube 2 head ends of sliding sleeve 5 move, and passage vertical with central tube 2 axis of the hole 5.1 of sliding sleeve 5 formation corresponding with through hole 2.1; On central tube 2 outer walls of 2.1 axial both sides, hole, sealing ring 3.1 is set respectively, and forms hermetically-sealed construction with sliding sleeve and central tube; Between adapter coupling 1 and sliding sleeve 5, next-door neighbour's sliding sleeve 5 sheathed lock ring 4 on central tube 2.
By technique scheme, described limit point place arranges limiting rivet.
By technique scheme, described lock ring 4 is locking nut.
By technique scheme, on central tube 2 outer walls of 2.1 axial both sides, hole, two sealing rings 3.1 respectively are set; Limit point 3 places arrange a sealing ring 3.1.Be preferably " O " RunddichtringO.Not only can the sealing of assurance instrument but the instrument that can prevent automatically close, the sliding sleeve switch that makes to commutate is safe and reliable.In addition, the design of external diameter φ 93.4mm, so that fishing.
By technique scheme, adapter coupling 1, sliding sleeve 5 materials adopt the 35CrMo steel, are equal to N80 oil pipe grade of steel, and therefore, the joint screw thread intensity of adapter coupling 1 and sliding sleeve 5 can meet the construction needs fully.
As shown in Figure 2, sand washing apparatus for work during the sand washing operation is as follows: from top to bottom the cock of opening 8 and the commutation sliding sleeve 6 that is initially closed condition are arranged between oil pipe 14 and water tap 9, the bottom of commutation sliding sleeve 6 is socketed self-styled 10 and wellhead tee joint 11 successively; Wellhead tee joint 11 below next-door neighbours arrange blowout preventer 12 and four-way 13;
After commutation sliding sleeve 6 is vertically placed and arrived precalculated position, limit point 3 places will be threaded on lock ring 4, thereby sliding sleeve 5 is opened interconnection the through hole that enters the hole that relies on self-sealing rubber core frictional force to make sliding sleeve at self-styled 10 o'clock and central tube is corresponding, realizes the change of liquid flow path direction; After having made up a joint, the tubing string of above carrying central tube 1 proposes sliding sleeve 5, and sliding sleeve 5 relies on self-sealing rubber core frictional force to close interconnection leaving at self-styled 10 o'clock, returns lock ring 4 to sliding sleeve 5 upper surfaces and locking, then can normally rinse.
Use the not termination of pumping continuous sand flushing method of this commutation sliding sleeve 6 specific as follows:
At first, commutation sliding sleeve 6 is installed, as shown in Figure 2; For ease of lifting, at the peripheral elevator 7 with hanger that arranges of commutation sliding sleeve 6;
Centre bore in the single arrival sliding sleeve 5 rinsed is gone forward side by side self-styled 10 the time, limit point 3 will be threaded on lock ring 4, close blowout preventer 12, open wellhead tee joint 11 outlets, the tubing string of sliding sleeve 6 central tubes 2 of commutating is again transferred and is seated on self-styled 10, and the outer sliding sleeve 5 of commutation sliding sleeve 6 is relatively up and open interconnection under self-styled 10 self-sealing core effect; Close the cock 8 at top, the returning fluid that the sand cleaning fluid entered from 13 imports of bottom four-way like this enters oil pipe 14 just, under not termination of pumping prerequisite, changes its course and is returned out by wellhead tee joint 11 again, and well head just can descend single;
After single connecting, first open cock 8, carry the tubing string 0.2m left and right of central tube 2 again, sliding sleeve 5 is relatively descending and close interconnection under the self-sealing core effect, again lock ring is threaded to sliding sleeve 5 upper surface lockings for 5 times, now closes again well head threeway 11 outlets, open blowout preventer 12, can start second sand washing, so just can the construction of not termination of pumping of reality continuous sand flushing.
In this process, the effect of commutation sliding sleeve is: in the oil-water well sand wash work progress, by the commutate sliding sleeve 5 of sliding sleeve of switch, make sliding sleeve 5 corresponding or not corresponding with the hole on central tube 2, realize the unlatching of passage or close, thereby change the direction of fluid, thereby reach the purpose of not termination of pumping continuous sand flushing.Can avoid causing because making up a joint like this work accident of sand card, improve sand washing and be constructed into power.
Actual use-case is as follows: this commutation sliding sleeve 6 is when sand washing is constructed, not termination of pumping, under continuous punching single 3, drilling depth 23.47mm, whole sand washing process safety is quick, the self-styled good seal of well head, there is no termination of pumping, play pump, effectively avoided that the risk sand setting card tubing string that causes has shortened the sand washing activity duration because termination of pumping is changed single, alleviated workman's labour intensity.
Above disclosed is only preferred embodiment of the present invention; certainly can not limit with this interest field of the present invention; therefore the equivalence of doing according to the present patent application the scope of the claims changes, as change and the improvement that technological parameter or device are made still belongs to protection scope of the present invention.
Claims (7)
1. a commutation sliding sleeve, be characterised in that: be arranged between oil pipe and water tap, mainly comprise adapter coupling, central tube, sliding sleeve; The pipe of through hole is set centered by central tube, the peripheral socket of the head end of central tube adapter coupling, the mid point of central tube is to arranging two between tail end along the through side direction through hole of diameter; Sliding sleeve is nested with on central tube and arranges a pair of along the through sliding sleeving hole of diameter; The wall of sliding sleeve sliding sleeve when initial closed state covers through hole, and when the stressed past central tube head end of sliding sleeve moves, sliding sleeving hole connection corresponding with through hole forms a passage vertical with the central tube axis; Sealing ring is set respectively on the central tube outer wall of the axial both sides of side direction through hole and forms hermetically-sealed construction with sliding sleeve and central tube; Between adapter coupling and sliding sleeve, on central tube, next-door neighbour's sliding sleeve is nested with lock ring.
2. commutation sliding sleeve according to claim 1, be characterised in that: two sealing rings respectively are set on the central tube outer wall of the axial both sides of side direction through hole; The limit point place arranges a sealing ring.
3. commutation sliding sleeve according to claim 1 and 2, be characterised in that: described lock ring is locking nut.
4. commutation sliding sleeve according to claim 3, be characterised in that: described limit point place arranges limiting rivet.
5. a sand washing apparatus for work that adopts the described commutation sliding sleeve of one of the claims, it is characterized in that, from top to bottom the cock of opening and the commutation sliding sleeve that is initially closed condition are arranged between oil pipe and water tap, the bottom of commutation sliding sleeve is socketed self-styled and wellhead tee joint successively; Wellhead tee joint below next-door neighbour arranges blowout preventer and four-way; At the peripheral elevator with hanger that arranges of commutation sliding sleeve.
6. a sand washing operational method that adopts the described sand washing apparatus for work of claim 5 is characterised in that:
After the commutation sliding sleeve is vertically placed and is arrived precalculated position, will be threaded to the limit point place on lock ring, enter when self-styled that the side direction through hole that relies on self-sealing rubber core frictional force to make sliding sleeving hole and central tube is corresponding opens interconnection thereby slide over, realize the change of liquid flow path direction; After having made up a joint, the tubing string of above carrying central tube proposes sliding sleeve, slides over to leave when self-styled to rely on self-sealing rubber core frictional force to close interconnection, returns lock ring to the sliding sleeve upper surface and locking, then can normally rinse.
7. sand washing operational method according to claim 6, be characterised in that: the sand washing operational method is specific as follows:
After the commutation sliding sleeve is installed, centre bore in the single arrival sliding sleeve rinsed is gone forward side by side when self-styled, limit point will be threaded on lock ring, close blowout preventer, the outlet of unlatching wellhead tee joint, the tubing string of sliding sleeve central tube of commutating is again transferred and is seated at from sealing up, and the outer sliding sleeve 5 of commutation sliding sleeve is relatively up and open interconnection under self-styled self-sealing rubber core effect; Close the cock at top, the returning fluid that the sand cleaning fluid entered from bottom four-way import like this enters oil pipe just, under not termination of pumping prerequisite, changes its course and is returned out by wellhead tee joint again, and well head just can descend single;
After single connecting, first open cock, carry the tubing string setpoint distance of central tube again, slide over relatively descending under the self-sealing rubber core effect and close interconnection, to be threaded to the locking of sliding sleeve upper surface under lock ring again, now close again well head threeway outlet, open blowout preventer, can start second sand washing, so just can the construction of not termination of pumping of reality continuous sand flushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104472242A CN103470199A (en) | 2013-09-27 | 2013-09-27 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104472242A CN103470199A (en) | 2013-09-27 | 2013-09-27 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
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| CN103470199A true CN103470199A (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104472242A Pending CN103470199A (en) | 2013-09-27 | 2013-09-27 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
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| CN (1) | CN103470199A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252665A (en) * | 2018-02-12 | 2018-07-06 | 新疆石油管理局有限公司准东勘探开发分公司 | Quick sand flushing device |
| CN113882819A (en) * | 2021-11-02 | 2022-01-04 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4103739A (en) * | 1976-09-03 | 1978-08-01 | Hall L D | Sand release apparatus for a pump |
| CN200985755Y (en) * | 2006-12-18 | 2007-12-05 | 辽河石油勘探局 | Continuance bounce-back sand-flushing device |
| CN201106423Y (en) * | 2007-09-10 | 2008-08-27 | 吐哈石油勘探开发指挥部井下技术作业公司 | Liquid-injecting valveless type control reversing continue sand-flushing device |
| CN201347732Y (en) * | 2009-01-21 | 2009-11-18 | 大庆油田有限责任公司 | Non-pumping off continuous sand washing device for oil water well |
| CN102146776A (en) * | 2010-02-09 | 2011-08-10 | 赵贵刚 | Continuous sand washing device for horizontal well |
| CN203603803U (en) * | 2013-09-27 | 2014-05-21 | 中国石化江汉油田分公司井下作业处 | Reversing sliding sleeve and sand removal working device |
-
2013
- 2013-09-27 CN CN2013104472242A patent/CN103470199A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4103739A (en) * | 1976-09-03 | 1978-08-01 | Hall L D | Sand release apparatus for a pump |
| CN200985755Y (en) * | 2006-12-18 | 2007-12-05 | 辽河石油勘探局 | Continuance bounce-back sand-flushing device |
| CN201106423Y (en) * | 2007-09-10 | 2008-08-27 | 吐哈石油勘探开发指挥部井下技术作业公司 | Liquid-injecting valveless type control reversing continue sand-flushing device |
| CN201347732Y (en) * | 2009-01-21 | 2009-11-18 | 大庆油田有限责任公司 | Non-pumping off continuous sand washing device for oil water well |
| CN102146776A (en) * | 2010-02-09 | 2011-08-10 | 赵贵刚 | Continuous sand washing device for horizontal well |
| CN203603803U (en) * | 2013-09-27 | 2014-05-21 | 中国石化江汉油田分公司井下作业处 | Reversing sliding sleeve and sand removal working device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252665A (en) * | 2018-02-12 | 2018-07-06 | 新疆石油管理局有限公司准东勘探开发分公司 | Quick sand flushing device |
| CN113882819A (en) * | 2021-11-02 | 2022-01-04 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
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Effective date of abandoning: 20161214 |
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