CN101319602A - Single card oil layer blasting hole plugging column - Google Patents
Single card oil layer blasting hole plugging column Download PDFInfo
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- CN101319602A CN101319602A CNA2008100649685A CN200810064968A CN101319602A CN 101319602 A CN101319602 A CN 101319602A CN A2008100649685 A CNA2008100649685 A CN A2008100649685A CN 200810064968 A CN200810064968 A CN 200810064968A CN 101319602 A CN101319602 A CN 101319602A
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- 238000005422 blasting Methods 0.000 title claims description 7
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 239000010985 leather Substances 0.000 claims description 39
- 238000012856 packing Methods 0.000 claims description 39
- 238000011010 flushing procedure Methods 0.000 claims description 32
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 8
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract 2
- 230000033001 locomotion Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 238000012360 testing method Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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Abstract
The invention relates to a single-slip oil layer perforation sealing pipe string which mainly solves the problems that when the pipe strings of the prior art complete the chemical sealing and plugging operation construction to oil and water wells, because the pipe strings do not have the functions of positive stamping setting, rotation and sealing the injection hole, reverse stamping, deblocking by lifting, etc., the working efficiency is low. The pipe string is characterized in that the pipe string consists of a super packer, a medium packer and a subordinate packer connected with oil pipes; the pipe string actually meets the technical requirements of each procedure in the sealing and plugging operation under different pressure on the sliding bush of an underground packer by cooperating with different motions, such as rotation and lifting, wherein, the super and the medium packers have the functions of positive stamping setting and reverse stamping setting, and the subordinate packer has the functions of positive stamping setting, injection hole sleeve rotation and sealing, and reverse stamping setting. The pipe string is characterized by great improvement of the working efficiency of the oil and water well chemical sealing and plugging operation construction.
Description
Technical field:
The present invention relates to the oil field and carry out the oil-water well chemical shutoff, seal employed a kind of tubing string when scurrying operation, relate to a kind of single card oil layer blasting hole plugging column specifically.
Background technology:
Oilfield oil well chemical plugging, envelope are scurried in the job execution process, and process pipe string of the prior art does not have just suppressing and sets, rotation sealing injection hole, instead suppress, on put forward function such as deblocking, and downhole tool can only once move.In addition, after the shutoff tubing string discharged, down-hole string need be tested and test envelope, and process pipe string of the prior art cannot be tested and tests envelope.The operating efficiency that the above-mentioned shortcoming of existing process pipe string makes whole oil-water well chemical shutoff, envelope scurry job execution is subjected to very big influence.
Summary of the invention:
Finish the oil-water well chemical shutoff in order to solve existing process pipe string, when scurrying job execution, envelope do not set because do not have just to suppress, rotation sealing injection hole, counter suppressing, on put forward functions such as deblocking and cause the low problem of operating efficiency, the invention provides a kind of single card oil layer blasting hole plugging column, on this kind tubing string, in packer have just to suppress and set, the counter function of suppressing deblocking, lower packet then has just suppressing and sets, the counter performance of suppressing deblocking of rotation sealing injection hole sleeve pipe, in addition, downhole tool can repeatedly move, after the shutoff tubing string discharged, down-hole string can be tested and test envelope.This kind tubing string the experiment proved that can improve the oil-water well chemical shutoff greatly, seal the operating efficiency of scurrying job execution.
Technical scheme of the present invention is: this kind single card oil layer blasting hole plugging column, comprise the higher level's packer that connects by oil pipe, middle rank packer and subordinate's packer, wherein said higher level's packer by on seal up joint, last envelope central tube, last envelope well-flushing deblocking piston, on seal up the packing element cover, last sealing tube, last envelope lower rubber cylinder cover, last offset nail, last condensate under seal higher level's ball, last condensate under seal middle rank ball, last strip of paper used for sealing bowl upper jacket, the unidirectional leather cup of last envelope, last strip of paper used for sealing bowl lower jacket, last envelope is overcoat down, last envelope is broken pin, last condensate under seal pin, the lower contact of last envelope, last octant position shelves and last envelope sliding sleeve connect in regular turn and form.
Seal up joint wherein and connect to go up the envelope central tube, connect simultaneously and seal up the packing element cover, go up the sealing tube and go up envelope lower rubber cylinder cover, and go up envelope overcoat down, describedly go up the envelope lower contact and break pin by last envelope and be connected, lean on screw thread to be connected with last envelope central tube with overcoat under the last envelope.Seal up on described joint and on install envelope well-flushing deblocking piston between the envelope central tube, connect on the last envelope central tube seal unidirectional leather cup and on strip of paper used for sealing bowl upper jacket and last strip of paper used for sealing bowl lower jacket.The described condensate under seal pin of going up is installed in the envelope lower contact, with the fixing envelope sliding sleeve of going up, on seal sliding sleeve and be installed in the envelope central tube, it is spacing by being connected the last octant position shelves that seal in the lower contact to seal sliding sleeve on this.
Describedly go up Feng Houning higher level's ball and use the intermediate ball of fixing the last Feng Houning of offset nail, seat on last envelope sliding sleeve, described intermediate packer by in seal up joint, middle envelope squeeze note pin, middle envelope sliding sleeve higher level, middle envelope well-flushing squeeze seal piston, in seal up that packing element cover, middle envelope central tube, middle sealing tube, middle envelope lower rubber cylinder cover, middle condensate under seal pin, middle strip of paper used for sealing bowl upper jacket, the unidirectional leather cup of middle envelope, middle strip of paper used for sealing bowl lower jacket, middle envelope lower contact, middle envelope are broken under pin, the middle envelope overcoat and middle envelope sliding sleeve subordinate connects in regular turn and forms.Wherein, seal up in described in the joint connection and seal central tube, seal up overcoat under packing element cover, middle sealing tube, middle envelope lower rubber cylinder cover and the middle envelope in connecting simultaneously, the lower contact of described middle envelope is broken pin by middle envelope and is connected with overcoat under the middle envelope, is connected with middle envelope central tube by screw thread.
Wherein, seal up between joint and the middle envelope central tube during middle envelope well-flushing squeeze seal piston is fixed in, seal on the central tube during unidirectional leather cup of middle envelope and middle strip of paper used for sealing bowl upper jacket and middle strip of paper used for sealing bowl lower jacket are fixed on.Envelope sliding sleeve higher level and middle envelope sliding sleeve subordinate in middle envelope central tube, connecting by middle condensate under seal pin.
Described subordinate packer is by the lower seal top connection with position-limitting pin, lower seal squeeze note pin, the lower seal central tube, under seal up overcoat, lower seal sliding sleeve higher level, lower seal well-flushing deblocking piston, lower seal gluing jacket casing, lower seal sliding sleeve middle rank, lower seal is tested the lashing cap, the lower seal weighted lever, lower seal pressure gauge storehouse, the lower seal limited block, the lower seal pitching, lower seal sliding sleeve subordinate, the lower seal packing element, lower seal packing element cover, lower seal leather cup upper jacket, the unidirectional leather cup of lower seal, lower seal leather cup lower jacket, the lower seal overcoat, lower seal breaks pin and the lower seal joint connects in regular turn and forms.Wherein, lower seal top connection with position-limitting pin connects the lower seal central tube and is threaded down with the T type seals up overcoat, described lower seal squeeze note pin is installed in the lower seal top connection, the lower seal central tube and under seal up between the overcoat lower seal well-flushing deblocking piston be installed, seal up overcoat down and connect lower seal gluing jacket casing, lower seal packing element, lower seal packing element cover and lower seal overcoat.
Described lower seal joint is connected with the lower seal overcoat by breaking pin, is connected with the lower seal central tube by screw thread; Seal unidirectional leather cup and lower seal leather cup upper jacket and lower seal leather cup lower jacket is fixed on the lower seal central tube.The lower seal sliding sleeve middle rank and the lower seal sliding sleeve subordinate of lower seal sliding sleeve higher level being housed in the lower seal central tube and being connected by lower seal sliding sleeve higher level, described lower seal sliding sleeve higher level, lower seal sliding sleeve middle rank and lower seal sliding sleeve subordinate are located by connecting by lower seal squeeze note pin.
Described lower seal is tested lashing cap and connected lower seal weighted lever, lower seal pressure gauge storehouse, the lower seal limited block is positioned at described lower seal sliding sleeve higher level, lower seal sliding sleeve middle rank and lower seal sliding sleeve subordinate, and described lower seal pitching seat is on the step of lower seal sliding sleeve subordinate.
The present invention has following beneficial effect: because after taking such scheme, the going up of this kind tubing string, middle packer have just suppress set, the counter function of suppressing deblocking, lower packet then has just suppressing and sets, rotates the counter performance of suppressing deblocking of sealing injection hole sleeve pipe.In addition, downhole tool can repeatedly move, and after the shutoff tubing string discharged, down-hole string can be tested and test envelope.This kind tubing string the experiment proved that and improved the operating efficiency that job execution is scurried in oil-water well chemical shutoff, envelope greatly.
Description of drawings:
Fig. 1 is the structure sectional view of higher level's packer first half related among the present invention.
Fig. 2 is the structure sectional view of higher level's packer Lower Half related among the present invention.
Fig. 3 is the structure sectional view of the intermediate packer first half related among the present invention.
Fig. 4 is the structure sectional view of intermediate packer Lower Half related among the present invention.
Fig. 5 is the structure sectional view of subordinate's packer first half related among the present invention.
Fig. 6 is the structure sectional view of subordinate's packer Lower Half related among the present invention.
1-lower seal top connection among the figure, 5-lower seal squeeze note pin, 6-lower seal central tube, seal up overcoat under the 7-, 8-lower seal sliding sleeve higher level, 9-lower seal well-flushing deblocking piston, 10-lower seal sliding sleeve middle rank, 11-lower seal sliding sleeve middle rank, 12-lower seal packing element cover, 14-lower seal leather cup upper jacket, 15-lower seal leather cup lower jacket, 16-lower seal overcoat, the 17-lower seal is broken pin, 18-lower seal sliding sleeve subordinate, 19-lower seal joint, the 20-lower seal is tested the lashing cap, 21-lower seal weighted lever, 22-lower seal pressure gauge storehouse, 23-lower seal limited block, 24-lower seal packing element, the unidirectional leather cup of 25-lower seal, joint is sealed up in the pitching of 26-lower seal on the S1-, the last envelope of S2-central tube, the last envelope of S3-well-flushing deblocking piston, seal up the packing element cover on the S4-, the last envelope of S5-lower rubber cylinder cover, the last offset nail of S6-, the last condensate under seal higher level's ball of S7-, the last condensate under seal middle rank of S8-ball, the last strip of paper used for sealing bowl of S10-upper jacket, the last strip of paper used for sealing bowl of S11-lower jacket, the last envelope of S12-is overcoat down, the last envelope of S13-is broken pin, the last condensate under seal pin of S14-, the lower contact of the last envelope of S15-, the last octant of S16-position shelves, the last envelope of S17-sliding sleeve, the last sealing tube of S24-, the unidirectional leather cup of the last envelope of S25-, seal up joint among the Z1-, envelope squeeze note pin among the Z2-, envelope sliding sleeve higher level among the Z3-, envelope well-flushing squeeze seal piston among the Z4-, seal up the packing element cover among the Z5-, seal central tube among the Z6-, envelope lower rubber cylinder cover among the Z7-, condensate under seal pin among the Z8-, strip of paper used for sealing bowl upper jacket among the Z9-, strip of paper used for sealing bowl lower jacket seals lower contact among the Z10-among the Z11-, and envelope is broken pin among the Z12-, overcoat under the envelope among the Z13-, envelope sliding sleeve subordinate among the Z14-, sealing tube among the Z24-, the unidirectional leather cup of envelope among the Z25-.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:
This kind of single card oil layer blasting hole plugging column, comprise the higher level's packer that connects by oil pipe, middle rank packer and subordinate's packer, wherein as Fig. 1 in conjunction with shown in Figure 2, described higher level's packer by on seal up joint S1, last envelope central tube S2, last envelope well-flushing deblocking piston S3, on seal up packing element cover S4, last sealing tube S24, last envelope lower rubber cylinder cover S5, last offset nail S6, last condensate under seal higher level's ball S7, last condensate under seal middle rank ball S8, last strip of paper used for sealing bowl upper jacket S10, the unidirectional leather cup S25 of last envelope, last strip of paper used for sealing bowl lower jacket S11, last envelope is overcoat S12 down, last envelope is broken pin S13, last condensate under seal pin S14, last envelope lower contact S15, last octant position shelves S16 and last envelope sliding sleeve S17 connect in regular turn and form.
Seal up envelope central tube S2 in the joint S1 connection wherein, seal up packing element cover S4 on connecting simultaneously, go up sealing tube S24 and go up envelope lower rubber cylinder cover S5, and go up and seal overcoat S12 down, described upward envelope lower contact S15 breaks pin S13 by last envelope and is connected with overcoat S12 under the last envelope, is connected with last envelope central tube S2 by screw thread.
Seal up on described joint S1 and on install envelope well-flushing deblocking piston S3 between the envelope central tube S2, connect on the last envelope central tube S2 seal unidirectional leather cup S25 and on strip of paper used for sealing bowl upper jacket S10 and last strip of paper used for sealing bowl lower jacket S11.
The described condensate under seal pin S14 that goes up is installed on the envelope lower contact S15, with the fixing envelope sliding sleeve S17 that goes up, on seal sliding sleeve S17 and be installed in the envelope central tube S2, it is spacing by being connected the last octant position shelves S16 that seals on the lower contact S15 to seal sliding sleeve S17 on this.
Describedly go up Feng Houning higher level's ball S7 and use fixing the last Feng Houning middle rank ball S8 of offset nail S6, on last envelope sliding sleeve S17.
As Fig. 3 in conjunction with shown in Figure 4, described intermediate packer by in seal up joint Z1, middle envelope squeeze note pin Z2, middle envelope sliding sleeve higher level Z3, middle envelope well-flushing squeeze seal piston Z4, in seal up packing element cover Z5, middle envelope central tube Z6, middle sealing tube Z24, middle envelope lower rubber cylinder cover Z7, middle condensate under seal pin Z8, middle strip of paper used for sealing bowl upper jacket Z9, the unidirectional leather cup Z25 of middle envelope, middle strip of paper used for sealing bowl lower jacket Z10, middle envelope lower contact Z11, middle envelope and break that overcoat Z13 and the middle envelope sliding sleeve Z14 of subordinate connect in regular turn and form under pin Z12, the middle envelope.
Wherein, seal up envelope central tube Z6 in the joint Z1 connection in described, seal up overcoat Z13 under packing element cover Z5, middle sealing tube Z24, middle envelope lower rubber cylinder cover Z7 and the middle envelope in connecting simultaneously, described middle envelope lower contact Z11 breaks pin Z12 by middle envelope and is connected with overcoat Z13 under the middle envelope, is connected with middle envelope central tube Z6 by screw thread.
Wherein, seal up between joint Z1 and the middle envelope central tube Z6 during middle envelope well-flushing squeeze seal piston Z4 is fixed in, seal on the central tube Z6 during unidirectional leather cup Z25 of middle envelope and middle strip of paper used for sealing bowl upper jacket Z9 and middle strip of paper used for sealing bowl lower jacket Z10 are fixed on.
Envelope sliding sleeve higher level Z3 and the middle envelope sliding sleeve Z14 of subordinate in middle envelope central tube Z6, connecting by middle condensate under seal pin Z8.
In conjunction with shown in Figure 6, described subordinate packer is by the lower seal top connection 1 with position-limitting pin as Fig. 5, lower seal squeeze note pin 5, lower seal central tube 6, under seal up overcoat 7, lower seal sliding sleeve higher level 8, lower seal well-flushing deblocking piston 9, lower seal gluing jacket casing 10, lower seal sliding sleeve middle rank 11, lower seal is tested lashing cap 20, lower seal weighted lever 21, lower seal pressure gauge storehouse 22, lower seal limited block 23, lower seal pitching 26, lower seal sliding sleeve subordinate 18, lower seal packing element 24, lower seal packing element cover 12, lower seal leather cup upper jacket 14, the unidirectional leather cup 25 of lower seal, lower seal leather cup lower jacket 15, lower seal overcoat 16, lower seal breaks pin 17 and lower seal joint 19 connects in regular turn and forms.
Wherein, lower seal top connection 1 with position-limitting pin connects lower seal central tube 6 and is threaded down with the T type seals up overcoat 7, described lower seal squeeze note pin 5 is installed in the lower seal top connection 1, lower seal central tube 6 and under seal up between the overcoat 7 lower seal well-flushing deblocking piston 9 be installed, seal up overcoat 7 down and connect lower seal gluing jacket casings 10, lower seal packing element 24, lower seal packing element cover 12 and lower seal overcoat 16;
Described lower seal joint 19 is connected with lower seal overcoat 16 by breaking pin 17, is connected with lower seal central tube 6 by screw thread.
The lower seal sliding sleeve middle rank 11 and the lower seal sliding sleeve subordinate 18 of lower seal sliding sleeve higher level 8 being housed in lower seal central tube 6 and being connected by lower seal sliding sleeve higher level 8, described lower seal sliding sleeve higher level 8, lower seal sliding sleeve middle rank 11 and lower seal sliding sleeve subordinate 18 are located by connecting by lower seal squeeze note pin 5.
Described lower seal is tested lashing cap 20 and connected lower seal weighted lever 21, lower seal pressure gauge storehouse 22, lower seal limited block 23 is positioned at described lower seal sliding sleeve higher level 8, lower seal sliding sleeve middle rank 11 and lower seal sliding sleeve subordinate 18, and 26 of described lower seal pitchings are on the step of lower seal sliding sleeve subordinate 18.
When using this kind tubing string, at first connect subordinate's packer, intermediate packer and higher level's packer from bottom to top with oil pipe, distance is for being slightly larger than the shutoff interval thickness and being no more than thickness of interlayer between subordinate's packer and the intermediate packer, between the distance between intermediate packer and the higher level's packer and subordinate packer and the intermediate packer apart from equating.
By the projected depth running string, subordinate's packer is aimed at the shutoff interval with intermediate packer.
Drop into lower seal pitching 26, squeeze clear water with cementing truck and make it on the step of packer lower seal sliding sleeve subordinate of subordinate 18, suppressed pressure in the oil pipe.When reaching certain pressure, unidirectional leather cup 25 feed liquors of lower seal are enclosed in the space in the lower seal packing element 24, and lower seal packing element 24 base sealed packers are opened in extruding.Simultaneously, when intermediate packer reaches certain pressure, the unidirectional leather cup Z25 of middle envelope feed liquor, in the space in being enclosed in the sealing tube Z24, sealing tube Z24 during extruding is opened, base sealed packer.Higher level's packer is because last envelope sliding sleeve S17 plays the effect that envelope central tube S2 inlet opening is gone up in sealing, and higher level's packer is not worked.In subordinate's packer, the piston force that lower seal pitching 26 and lower seal sliding sleeve subordinate 18 form, after reaching certain pressure, cut off lower seal squeeze note pin 5, lower seal sliding sleeve higher level 8, lower seal sliding sleeve middle rank 11, lower seal sliding sleeve subordinate 18 are descending, perforate on the lower seal sliding sleeve higher level 8 is alignd with the perforate on the lower seal central tube 6, and oil pipe is inside and outside to be communicated with.Using steel wire to connect lower seal tests lashing cap 20 and tests lower seal weighted lever 21, lower seal pressure gauge storehouse 22, the lower seal limited block 23 that lashing cap 20 is connected with lower seal, be shipped on the step of lower seal sliding sleeve subordinate 18, exciting tubing pressure, the sealing situation of checking subordinate packer.
Then, use steel wire that the seal-checking instrument device is strung out.Clamp-on cement, carry out shutoff.
During anti-flushing well, the oil pipe external pressure is greater than the oil pipe internal pressure, pushes envelope well-flushing deblocking piston Z4 in the intermediate packer open, in seal up two open communication of packing element cover Z5, the pressure in releasing in the sealing tube Z24, intermediate packer deblocking.Then push subordinate's packer lower seal well-flushing deblocking piston 9 open, 10 two open communication of lower seal gluing jacket casing release the pressure in the lower seal packing element 24, subordinate's packer deblocking.Then, flushing fluid returns the oil pipe central passage from the tubing string bottom via lower seal pitching 26, realizes anti-flushing well.
If subordinate's packer can not the anti-flushing well deblocking, the turn tubing string, because the lower seal packing element 24 of subordinate's packer is adjacent to casing wall, under seal up overcoat 7, lower seal gluing jacket casing 10, lower seal packing element 24, lower seal packing element cover 12, lower seal overcoat 16 rotates thereupon, the T type of sealing up overcoat 7 is down buckled with the T type of lower seal top connection 1 and is buckled, the perforate of lower seal gluing jacket casing 10 is alignd with the perforate of lower seal central tube 6, releases the pressure in the lower seal packing element 24, subordinate's packer deblocking.
If the rotation tubing string can't deblocking subordinate packer, the upper lifting pipe post is broken lower seal and is broken pin 17, and lower seal overcoat 16 is descending, crosses the sealing ring of lower seal joint 19 outer rings, pressure release lower seal packing element 24 chambeies in, realization deblocking.Subordinate's packer is separated and is honored as a queen, and thoroughly anti-flushing well is removed the residual cement in the sleeve pipe.
Thoroughly behind the anti-flushing well, will be with to press to wait and coagulate.
At first, deepen tubing string, distance is the distance between lower packet and the middle packer, and packer is aimed at the shutoff interval in making with upper packer.
Feng Houning higher level's ball S7 and use fixing the last Feng Houning middle rank ball S8 of offset nail S6 on the input, seat is suppressed with the clear water oil pipe sealing on the sliding sleeve S17 on higher level's packer, suppressed pressure in the oil pipe, when reaching certain pressure, piston force is cut off Feng Houning pin S14, makes envelope sliding sleeve S17 descending, the inlet opening of last envelope central tube S2 exposes, when reaching certain pressure, on seal unidirectional leather cup S25 feed liquor, be enclosed in the space of sealing tube S24, sealing tube S24, base sealed packer are opened in extruding.Continue pressurization, when reaching certain pressure, piston force is cut off offset nail S6, and last Feng Houning middle rank ball loses the fixing of offset nail S6, drop to intermediate packer, on the step of the middle envelope sliding sleeve Z14 of subordinate, suppressed pressure in the oil pipe, when reaching certain pressure, the unidirectional leather cup Z25 feed liquor of middle envelope, be enclosed in the space of sealing tube Z24 sealing tube Z24 during extruding is opened, base sealed packer.Continue pressurization, when reaching certain pressure, piston force is sheared the middle Feng Houning pin Z8 on the intermediate packer, middle envelope sliding sleeve higher level Z3 and the middle envelope sliding sleeve Z14 of subordinate are descending, perforate on the middle envelope sliding sleeve higher level Z3 is alignd with the perforate on the last middle sealing joint Z1, pressure is delivered to outside the oil pipe, keeps certain pressure, realizes band pressure time with fixed attention.
After wait coagulating certain hour, the clear water anti-flushing well, the oil pipe external pressure is pushed open and is gone up envelope well-flushing deblocking piston S3 in higher level's packer greater than the oil pipe internal pressure, on seal up two open communication of packing element cover S4, release the interior pressure of sealing tube S24, higher level's packer deblocking.
Then, push open in the intermediate packer in envelope well-flushing deblocking piston Z4, in seal up two open communication of packing element cover Z5, the pressure in releasing in the sealing tube Z24, intermediate packer deblocking.If the two-stage packer can not deblocking, the upper lifting pipe post is broken on higher level's packer envelope and is broken pin S13, and time overcoat S12 is descending for last envelope, crosses the sealing ring that seals lower contact S15 outer ring, pressure release in the last sealing tube S24 chamber, higher level's packer deblocking.Simultaneously, break the interior middle envelope of intermediate packer and break pin Z12, overcoat Z13 is descending under the middle envelope, the sealing ring of envelope lower contact Z11 outer ring in crossing, pressure release in the middle sealing tube Z24 chamber, intermediate packer deblocking.Trip out tubing string at last, realized band pressure time grout off technology with fixed attention.
Essence of the present invention is to scurry in the job execution process in shutoff, envelope, utilize the downhole packer inner sliding sleeve under different force value effects, cooperate rotation, on propose different actions and reach the technical requirementss that each operation of operation is scurried in shutoff, envelope, can have just suppressing and set, rotation sealing injection hole, instead suppress, on put forward function such as deblocking, and can realize testing and test envelope, therefore improve operating efficiency greatly.
The present invention has carried out field trial on October 11st, 2006 at Bei1-50-545Jing.
North 1-50-545 well test well, full well is penetrated out sandstone thickness 22.8m, and effective thickness 8.4m uses 10 layers of borehole single deck tape-recorder shutoff tubing string shutoff Sa II, and plugged well section span 2.6m penetrates out sandstone thickness 1.5m.Production fluid is 147 tons/day before the shutoff, and 2 tons/day of produce oils are moisture 96.6%, and production fluid is 21 tons/day after the shutoff, and 2 tons/day of produce oils are moisture 90.4%, and 126 tons of liquid fall in day.This shows that test effect is obvious,
Claims (1)
1, a kind of single card oil layer blasting hole plugging column comprises the higher level's packer, intermediate packer and the subordinate's packer that are connected by oil pipe, it is characterized in that:.
Described higher level's packer by on seal up joint (S1), last envelope central tube (S2), last envelope well-flushing deblocking piston (S3), on seal up packing element cover (S4), last sealing tube (S24), last envelope lower rubber cylinder cover (S5), last offset nail (S6), last condensate under seal higher level's ball (S7), last condensate under seal middle rank ball (S8), last strip of paper used for sealing bowl upper jacket (S10), the unidirectional leather cup of last envelope (S25), last strip of paper used for sealing bowl lower jacket (S11), last envelope is overcoat (S12) down, last envelope is broken pin (S13), last condensate under seal pin (S14), last envelope lower contact (S15), last octant position shelves (S16) and last envelope sliding sleeve (S17) connect in regular turn and form;
Seal up envelope central tube (S2) in joint (S1) connection wherein, seal up packing element cover (S4) on connecting simultaneously, go up sealing tube (S24) and last envelope lower rubber cylinder cover (S5), and go up and seal overcoat (S12) down, described upward envelope lower contact (S15) is broken pin (S13) by last envelope and is connected with overcoat (S12) under the last envelope, is connected with last envelope central tube (S2) by screw thread;
Seal up on described and install envelope well-flushing deblocking piston (S3) between joint (S1) and the last envelope central tube (S2), on last envelope central tube (S2), connect seal unidirectional leather cup (S25) and on strip of paper used for sealing bowl upper jacket (S10) and last strip of paper used for sealing bowl lower jacket (S11);
The described condensate under seal pin (S14) of going up is installed in the envelope lower contact (S15), with the fixing envelope sliding sleeve (S17) of going up, last envelope sliding sleeve (S17) is installed in the envelope central tube (S2), and envelope sliding sleeve (S17) is spacing by the last octant position shelves (S16) that are connected in the envelope lower contact (S15) on this;
Describedly go up Feng Houning higher level's ball (S7) and use fixing the last Feng Houning middle rank ball (S8) of offset nail (S6), on last envelope sliding sleeve (S17);
Described intermediate packer by in seal up joint (Z1), middle envelope squeeze note pin (Z2), middle envelope sliding sleeve higher level (Z3), middle envelope well-flushing squeeze seal piston (Z4), in seal up packing element cover (Z5), middle envelope central tube (Z6), middle sealing tube (Z24), middle envelope lower rubber cylinder cover (Z7), middle condensate under seal pin (Z8), middle strip of paper used for sealing bowl upper jacket (Z9), middle envelope unidirectional leather cup (Z25), middle strip of paper used for sealing bowl lower jacket (Z10), the lower contact (Z11) of middle envelope, middle envelope is broken pin (Z12), overcoat (Z13) and middle envelope sliding sleeve subordinate (Z14) connect in regular turn and form under the middle envelope;
Wherein, seal up in described in joint (Z1) connection and seal central tube (Z6), seal up overcoat (Z13) under packing element cover (Z5), middle sealing tube (Z24), middle envelope lower rubber cylinder cover (Z7) and the middle envelope in connecting simultaneously, described middle envelope lower contact (Z11) is broken pin (Z12) by middle envelope and is connected with overcoat (Z13) under the middle envelope, is connected with middle envelope central tube (Z6) by screw thread;
Wherein, seal up during middle envelope well-flushing squeeze seal piston (Z4) is fixed between joint (Z1) and the middle envelope central tube (Z6), seal on the central tube (Z6) during unidirectional leather cup of middle envelope (Z25) and middle strip of paper used for sealing bowl upper jacket (Z9) and middle strip of paper used for sealing bowl lower jacket (Z10) are fixed on;
Envelope sliding sleeve higher level (Z3) and middle envelope sliding sleeve subordinate (Z14) in middle envelope central tube (Z6), connecting by middle condensate under seal pin (Z8)
Described subordinate packer is by the lower seal top connection (1) with position-limitting pin, lower seal squeeze note pin (5), lower seal central tube (6), under seal up overcoat (7), lower seal sliding sleeve higher level (8), lower seal well-flushing deblocking piston (9), lower seal gluing jacket casing (10), lower seal sliding sleeve middle rank (11), lower seal is tested lashing cap (20), lower seal weighted lever (21), lower seal pressure gauge storehouse (22), lower seal limited block (23), lower seal pitching (26), lower seal sliding sleeve subordinate (18), lower seal packing element (24), lower seal packing element cover (12), lower seal leather cup upper jacket (14), the unidirectional leather cup of lower seal (25), lower seal leather cup lower jacket (15), lower seal overcoat (16), lower seal breaks pin (17) and lower seal joint (19) connects in regular turn and forms;
Wherein, lower seal top connection (1) with position-limitting pin connects lower seal central tube (6) and is threaded down with the T type seals up overcoat (7), described lower seal squeeze note pin (5) is installed in the lower seal top connection (1), lower seal central tube (6) and under seal up between the overcoat (7) lower seal well-flushing deblocking piston (9) be installed, seal up overcoat (7) down and connect lower seal gluing jacket casing (10), lower seal packing element (24), lower seal packing element cover (12) and lower seal overcoat (16);
Described lower seal joint (19) is connected with lower seal overcoat (16) by breaking pin (17), is connected with lower seal central tube (6) by screw thread;
Unidirectional leather cup of described lower seal (25) and lower seal leather cup upper jacket (14) and lower seal leather cup lower jacket (15) are fixed on the lower seal central tube (6);
The lower seal sliding sleeve middle rank (11) and the lower seal sliding sleeve subordinate (18) of lower seal sliding sleeve higher level (8) being housed in lower seal central tube (6) and connecting by lower seal sliding sleeve higher level (8), described lower seal sliding sleeve higher level (8), lower seal sliding sleeve middle rank (11) and lower seal sliding sleeve subordinate (18) are located by connecting by lower seal squeeze note pin (5);
Described lower seal is tested lashing cap (20) and connected lower seal weighted lever (21), lower seal pressure gauge storehouse (22), lower seal limited block (23) is positioned at described lower seal sliding sleeve higher level (8), lower seal sliding sleeve middle rank (11) and lower seal sliding sleeve subordinate (18);
Described lower seal pitching (26) seat is on the step of lower seal sliding sleeve subordinate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100649685A CN101319602B (en) | 2008-07-23 | 2008-07-23 | Single card oil layer blasting hole plugging column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100649685A CN101319602B (en) | 2008-07-23 | 2008-07-23 | Single card oil layer blasting hole plugging column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319602A true CN101319602A (en) | 2008-12-10 |
| CN101319602B CN101319602B (en) | 2012-02-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100649685A Active CN101319602B (en) | 2008-07-23 | 2008-07-23 | Single card oil layer blasting hole plugging column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101319602B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485746A (en) * | 2013-10-11 | 2014-01-01 | 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 | Packer for horizontal well dimension fracturing |
| CN103835675A (en) * | 2014-03-18 | 2014-06-04 | 四机赛瓦石油钻采设备有限公司 | Long-rubber-sleeve compression type open hole packer |
| CN108801796A (en) * | 2017-04-27 | 2018-11-13 | 天津台信检测技术有限公司 | The resistance to pressuring oil pipe pressure resistance of automobile and explosion bulge test device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5425418A (en) * | 1994-04-26 | 1995-06-20 | Baker Hughes Incorporated | Multiple-completion packer and locking element therefor |
| CN2451724Y (en) * | 2000-09-28 | 2001-10-03 | 大庆油田有限责任公司采油工艺研究所 | Flushing packer |
| CN2646374Y (en) * | 2003-10-14 | 2004-10-06 | 大庆油田有限责任公司 | Novel hydraulic righting packer |
| CN2693944Y (en) * | 2003-11-28 | 2005-04-20 | 大港油田集团有限责任公司 | Hydraulic cup packer |
| CN101054895A (en) * | 2007-05-30 | 2007-10-17 | 北京通盛威尔工程技术有限公司 | Sand blower release-controllable multiple-layer laminated fracture string device and controllable release method |
-
2008
- 2008-07-23 CN CN2008100649685A patent/CN101319602B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485746A (en) * | 2013-10-11 | 2014-01-01 | 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 | Packer for horizontal well dimension fracturing |
| CN103485746B (en) * | 2013-10-11 | 2015-12-16 | 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 | A kind of packer for horizontal well volume fracturing |
| CN103835675A (en) * | 2014-03-18 | 2014-06-04 | 四机赛瓦石油钻采设备有限公司 | Long-rubber-sleeve compression type open hole packer |
| CN103835675B (en) * | 2014-03-18 | 2017-01-25 | 四机赛瓦石油钻采设备有限公司 | Long-rubber-sleeve compression type open hole packer |
| CN108801796A (en) * | 2017-04-27 | 2018-11-13 | 天津台信检测技术有限公司 | The resistance to pressuring oil pipe pressure resistance of automobile and explosion bulge test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101319602B (en) | 2012-02-29 |
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Effective date of registration: 20211231 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Plains Road No. 99 Patentee after: Daqing Oilfield Co.,Ltd. Patentee after: PetroChina Company Limited Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Plains Road No. 99 Patentee before: Daqing Oilfield Co.,Ltd. |