CN103015952B - Method for packing multiple layers of gravel in one time - Google Patents
Method for packing multiple layers of gravel in one time Download PDFInfo
- Publication number
- CN103015952B CN103015952B CN201210534469.4A CN201210534469A CN103015952B CN 103015952 B CN103015952 B CN 103015952B CN 201210534469 A CN201210534469 A CN 201210534469A CN 103015952 B CN103015952 B CN 103015952B
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- filling
- service aid
- claw
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a method for packing multiple layers of gravel in one time. Compared with the prior art, an inspection packing condition is added, so that the actual height of packing sand can be calculated; the condition that whether the height of the packing sand achieves the predicted height or not is inspected; the amount of the packing sand can be calculated through the height of the packing sand, and can be compared with the actual amount of the packing sand; if the actual amount of the packing sand is more than the calculated amount of the packing sand, the packing effect is good; otherwise, the packing effect is not good, a sand bridge can be formed, and repacking is needed; and whether a sliding sleeve is completely closed or not can be determined through inspecting the sliding sleeve closing condition, so that the packing sand is prevented from entering a sieve tube to cause that packing fails, therefore, with the adoption of the multi-layer gravel packing method in one time, huge economic loss brought by packing failure can be effectively prevented, and multiple oil layers can be packed at one time, so that the working cycle is shortened, the working time is saved, and the working efficiency is improved.
Description
Technical field
The present invention relates to oil exploitation well anti-sand method, particularly a kind of single multilayer gravel pack methods.
Background technology
Crude oil flows into the process of pit shaft from stratum, can carry some sand grains and enter pit shaft.For preventing sand production, on the one hand will for oil reservoir and oil well condition, selecting properly well cementation, completion mode, formulate and reasonably exploit measure, raise the management level; On the other hand, corresponding anti-sand method to be adopted according to oil reservoir, oil well and the concrete condition of shaking out.Current anti-sand method, mainly contains the method such as mechanical technology sand control, chemical sand control, sleeve pipe outer inflatable packer sand control, gravel filling sand prevention.
In existing gravel pack methods, the general mode of carrying out individual layer sand control, successively sand control that adopts carries out multiple gravel pack, and field operation needs repeatedly to enter instrument down, duty cycle is long, and operator's labour intensity is large, and sand control treatment speed is slow simultaneously, big energy-consuming, high in cost of production problem.
The patent No. is 201110038345.2, denomination of invention is that " single multilayer gravel pack methods and instrument " has had larger improvement relative to technology before, and obtain good technique effect, adopt one-trip string, kit, carry out the mode of gravel pack with order from bottom to top, the construction of multiple gravel pack sand control is carried out in one-stop operation.But this method may exist and occurs sand bridge phenomenon, described sand bridge refers to that packing job is incomplete, and part filling section does not have back-up sand.Cause the packing job later stage, back-up sand cannot withstand the gravel on stratum, makes it enter sleeve pipe, thus causes the failure of sand control, and therefore, prior art existence requires further improvement part.
Summary of the invention
The present invention increases the step of inspection filling situation on the basis of existing technology, thus the sand bridge phenomenon that solution prior art may exist, strengthen filling effect.
Single multilayer gravel pack methods special feature of the present invention is: the method comprises the following steps: enter single multilayer gravel pack tools under (1), then carry outer tubing string kimonos on the whole to work tool, by the load display on suspending weight device, confirmed whether described single multilayer gravel pack tools is lowered into position; After confirming that described single multilayer gravel pack tools is lowered into position, plug-in type location sealing bar and automatic guide guide shoe are inserted in sump packer; (2) to oil pipe suppress make setting tool seat seal top packer, then suppress to sleeve pipe, test envelope described top packer setting whether qualified; Described top packer setting qualified after, described setting instrument is given up described top packer; (3) promote described service aid, the filling crossover tool in described service aid also rises thereupon, when the pack hole of described filling crossover tool is positioned at zone isolation packer place, and setting described zone isolation packer; Continue to promote described service aid, when described pack hole is promoted to the sealing drum place above described zone isolation packer, check described zone isolation packer set whether qualified; Transfer described service aid, when being positioned at the filling corresponding aperture place on the sliding sleeve on the described outer tubing string at this filling bed place when described pack hole, carry out the loop test before packing job, ladder test and minute-pressure and split test, filling oil reservoir also carries out direct circulation operation; Continue to promote described service aid, when the reversing port of described filling crossover tool is positioned at the described sliding sleeve place at this filling bed place, carry out reacting cycle operation; (4) after reacting cycle operation completes, transfer described service aid to filling position, whether inspection filling is qualified, re-starts filling and carry out filling inspection when filling is defective; Confirm filling qualified rear on carry described service aid, the sliding sleeve switch instrument on described service aid will cut out described sliding sleeve, suppress the described sliding sleeve of inspection and will close situation, if pressure rising, then show that described sliding sleeve is in closed condition to oil pipe; If pressure drop, then show that described sliding sleeve is not closed, then again close the operation of described sliding sleeve, and inspection institute states sliding sleeve closedown situation again; (5) successively according to the method successively filling from bottom to top of step (3), (4), until the superiors' filling is complete.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: in described filling oil reservoir process, rotary location tool in described service aid is in positioning states, now pressure measurement ball valve is in two-way negotiable state, and current can realize from top to bottom and two kinds of circulation styles from bottom to up; In described reacting cycle process, when described rotary location tool is in non-locating state, described pressure measurement ball valve becomes one way valve, and current can only circulate from bottom to up.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: the location conversion method of described rotary location tool is: by carry described service aid, the top connection of described rotary location tool drives guide peg, central tube moves up, now the active force of energizing spring can promote back-up ring and elastic locating sleeve relative to described guide peg, described central tube moves down, drive sliding cylinder bearing pin along the J type rail moving on central tube simultaneously, described guide peg does not play a supportive role to described elastic locating sleeve, described elastic locating sleeve is made to be in compressive state, described rotary location tool passes through sealing drum, transfer service aid, described central tube and described elastic locating sleeve produce relative movement, described sliding cylinder bearing pin slides in described J type groove, when described sliding cylinder bearing pin is positioned at the short groove of described J type groove, now described rotary location tool is in and passes through state, on carry and transfer service aid again, until described sliding cylinder bearing pin is positioned at the elongated slot of described J type groove, this guide peg plays a supportive role to described elastic locating sleeve, the outer lug boss of described elastic locating sleeve tangles sealing drum, and now described rotary location tool is in positioning states.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: it is realized by the sliding sleeve switch instrument on described service aid that described sliding sleeve is closed: when described service aid is carried, sliding sleeve switch on described sliding sleeve moves upward together with matching with described sliding sleeve switch instrument, after described sliding sleeve switch puts in place, claw on described sliding sleeve switch instrument is subject to the extruding of described sliding sleeve, described claw shrinks and departs from described sliding sleeve, realizes the closedown of described sliding sleeve.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: described sliding sleeve switch instrument is unidirectional sliding sleeve switch instrument, on carry described service aid, getting out of a predicament or an embarrassing situation of unidirectional claw on described unidirectional sliding sleeve switch instrument tangles the top small stair of described sliding sleeve switch, it is made to drive the described sliding sleeve switch on sliding sleeve to move upward together, lock claw now on described sliding sleeve switch enters the positioning step on the stop collar in described sliding sleeve, inclined-plane, described unidirectional claw upper end is subject to the extruding of described stop collar simultaneously, described unidirectional claw compression cylindrical screw stage clip, described cylindrical screw stage clip shrinks, described unidirectional claw is got out of a predicament or an embarrassing situation to depart from described sliding sleeve switch, described filling corresponding aperture is closed by described unidirectional sliding sleeve switch instrument.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: described sliding sleeve switch instrument is two-way sliding sleeve switch instrument, on carry described service aid, getting out of a predicament or an embarrassing situation of two-way claw on described two-way sliding sleeve switch instrument tangles the top small stair of described sliding sleeve switch, it is made to drive described sliding sleeve switch to move upward together, lock claw now on described sliding sleeve switch enters the positioning step on the stop collar in described sliding sleeve, inclined-plane, described two-way claw upper end is subject to the extruding of described stop collar simultaneously, described two-way claw compression cylindrical screw stage clip, described cylindrical screw stage clip shrinks, described two-way claw is got out of a predicament or an embarrassing situation to depart from described sliding sleeve switch, filling corresponding aperture on described sliding sleeve is closed by described sliding sleeve switch instrument.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: described in described two-way sliding sleeve switch TO, the mode of sliding sleeve is: transfer service aid, topping bar of described two-way claw tangles the bottom small stair of described sliding sleeve switch, it is made to drive described sliding sleeve switch to move downward together, now described sliding sleeve switch locks by the positioning step of filling sliding sleeve, inclined-plane, described two-way claw lower end is subject to the extruding of the sliding sleeve sealing drum on described sliding sleeve simultaneously, described two-way claw compresses described cylindrical screw stage clip, described cylindrical screw stage clip shrinks, described two-way claw is topped bar to depart from described sliding sleeve switch, filling corresponding aperture on described sliding sleeve is opened by described two-way sliding sleeve switch instrument.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: be provided with casing annulus between described service aid and described outer tubing string, circulation annular space is provided with between the washing pipe of described service aid and central tube, described outer tubing string is respectively arranged with lining and seal with buss cylinder, joint ring on described lining seals mutually with the lower contact of described seal with buss cylinder, inner seal liner on described lining and described washing pipe seal at any time, in whole stowing operation, described casing annulus and stratum isolated, to check zone isolation packer set situation.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: described lining is provided with location lock dog, the inner chamber of the top connection of described seal with buss cylinder is provided with groove, described location lock dog and described fit depressions, realize the locking of described lining.
In order to improve prior art further, the special feature of single multilayer gravel pack methods of the present invention is also: above carry described service aid, described filling crossover tool is carried to described lining place, recovery boss on nipple on described filling crossover tool tangles the lining sliding sleeve of described lining, shear pin on described lining is cut off, now described lining sliding sleeve is carried with on described filling crossover tool, fixture block on described lining falls in the groove of described lining sliding sleeve, positioning pipe on described lining loses the support of described fixture block, slide downward under acting force of the spring on described lining, drive described location lock dog slide downward simultaneously, described location lock dog is made to fall in the lower recess of coupled positioning tube, thus realize the recovery of described lining.
Single multilayer gravel pack methods of the present invention, the height of actual back-up sand can be calculated by increasing inspection filling situation, whether inspection reaches is estimated the height of back-up sand, in addition can by the high computational back-up sand amount of back-up sand, and is formed with actual sandstone charging amount and contrast.If actual back-up sand amount is more than calculating back-up sand amount, then prove that filling effect is good; Otherwise filling effect is bad, likely form sand bridge, then need to refill.By inspection sliding sleeve close situation, can determine whether sliding sleeve closes completely, thus prevent back-up sand enter screen casing inside cause filling failure.Thus, the tremendous economic that single multilayer gravel pack methods of the present invention can prevent filling from unsuccessfully bringing effectively is lost; The all right multiple oil reservoir of primary filling of single multilayer gravel pack methods of the present invention, thus shorten duty cycle, save the activity duration, improve operating efficiency.
As can be seen here, compared with prior art, the present invention has outstanding substantive distinguishing features and significant technological progress, and its beneficial effect implemented also is apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of single multilayer gravel pack tools of the present invention.
Fig. 2 is the structural representation of the filling crossover tool shown in Fig. 1.
Fig. 3 is the structural representation of the rotary location tool shown in Fig. 1.
Fig. 4 is the structural representation of the pressure measurement ball valve shown in Fig. 1; Wherein (1) be pressure measurement ball valve two-way negotiable view, unidirectional negotiable view that (2) are pressure measurement ball valve.
Fig. 5 is the schematic diagram of the shift sleeve structure shown in Fig. 1.
Fig. 6 is the structural representation of the two-way sliding sleeve switch instrument shown in Fig. 1.
Fig. 7 is the structural representation of the unidirectional sliding sleeve switch instrument shown in Fig. 1.
Fig. 8 is the structural representation of the lining shown in Fig. 1.
Fig. 9 is for the top packer shown in Fig. 1 is setting and view of giving up.
Figure 10 is arranged in the zone isolation packer view at the wall place of lower oil reservoir and oil reservoir for the structure shown in Fig. 1 is setting.
Figure 11 tests envelope for the structure shown in Fig. 1 and is arranged in the zone isolation packer view at the wall place of lower oil reservoir and oil reservoir.
Figure 12 is oil reservoir view under the structure filling shown in Fig. 1.
Figure 13 is the structure reacting cycle view shown in Fig. 1.
Figure 14 is oil reservoir view in the structure filling shown in Fig. 1.
Figure 15 to oil layer state schematic diagram for the structure filling shown in Fig. 1.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Single multilayer gravel pack methods of the present invention adopts single multilayer gravel pack tools, its concrete structure is as Fig. 1, single multilayer gravel pack tools comprises outer tubing string, service aid, service aid is installed in outer tubing string, outer tubing string comprise top packer 1 and under the seal with buss cylinder 2 of connection is installed in turn, lining 3, sealing drum 4, sliding sleeve 5, sealing drum 4, pipe nipple 6, sealing drum 4, pipe nipple 6, screen casing 7, sealing drum 4, zone isolation packer 8, sealing drum 4, sliding sleeve 5, sealing drum 4, pipe nipple 6, sealing drum 4, pipe nipple 6, screen casing 7, sealing drum 4, zone isolation packer 8, sealing drum 4, sliding sleeve 5, sealing drum 4, pipe nipple 6, sealing drum 4, pipe nipple 6, screen casing 7, plug-in type location sealing bar 9, sump packer 10 and automatic guide guide shoe 11, service aid comprise setting instrument 12 and under the washing pipe 13 of connection, central tube 14, filling crossover tool 15, pressure measurement ball valve 16, rotary location tool 17, unidirectional sliding sleeve switch instrument 18, two-way sliding sleeve switch instrument 19 and bottom isolating seal 20 are installed successively.
Single multilayer gravel pack methods of the present invention comprises the following steps: enter single multilayer gravel pack tools under (1), then carry outer tubing string kimonos on the whole to work tool, by the load display on suspending weight device, confirmed whether single multilayer gravel pack tools is lowered into position; After confirming that single multilayer gravel pack tools is lowered into position, plug-in type location sealing bar 9 and automatic guide guide shoe 11 are inserted in sump packer 10; (2) suppress to oil pipe and make the setting top packer 1 of setting instrument 12, then suppress to sleeve pipe, whether qualifiedly test the portion's packer set 1 that binds; Top packer 1 setting qualified after, setting instrument 12 is given up top packer 1; (3) promote service aid, the filling crossover tool 15 in service aid also rises thereupon, when the pack hole 151 of filling crossover tool 15 is positioned at zone isolation packer 8 place, and setting zone isolation packer 8; Continue to promote service aid, when pack hole 151 is promoted to sealing drum 4 place above zone isolation packer 8, whether inspection zone isolation packer set 8 is qualified; Transfer service aid, when being positioned at filling corresponding aperture 51 place on the sliding sleeve on the outer tubing string at this filling bed place when pack hole 151, carry out the loop test before packing job, ladder test and minute-pressure and split test, filling oil reservoir also carries out direct circulation operation; Continue to promote service aid, when the reversing port 152 of filling crossover tool 15 is positioned at sliding sleeve 5 place at this filling bed place, carry out reacting cycle operation; (4) after reacting cycle operation completes, transfer service aid to filling position, whether inspection filling is qualified, re-starts filling and carry out filling inspection when filling is defective; Confirm filling qualified rear on carry service aid, the sliding sleeve switch instrument on service aid will cut out sliding sleeve 5, to oil pipe suppress check sliding sleeve 5 close situation, if pressure rising, then show that sliding sleeve 5 is in closed condition; If pressure drop, then show that sliding sleeve 5 is not closed, then again close sliding sleeve 5 and operate, and again check sliding sleeve 5 to close situation; (5) successively according to the method successively filling from bottom to top of step (3), (4), until the superiors' filling is complete.Below discuss and be illustrated for filling three layers of oil reservoir.
Wherein, described packer setting, to test envelope and packing job and reacting cycle operation be shown in filling crossover tool 15 Fig. 2 by conversion single multilayer gravel pack tools service aid and the relative position of outer tubing string realizes.The zone isolation packer 8 at setting interlayer place between middle oil reservoir and upper oil reservoir and when being arranged in the zone isolation packer 8 at wall place of lower oil reservoir and oil reservoir, is in zone isolation packer 8 place at the zone isolation packer 8 at interlayer place between middle oil reservoir and upper oil reservoir and the wall place of lower oil reservoir and middle oil reservoir respectively by the pack hole 151 of filling crossover tool 15; When testing the zone isolation packer 8 at the zone isolation packer 8 at interlayer place between oil reservoir and upper oil reservoir in envelope and the wall place of lower oil reservoir and middle oil reservoir, in respectively the pack hole 151 of filling crossover tool 15 being proposed between oil reservoir and upper oil reservoir interlayer place zone isolation packer 8 above sealing drum 4 and lower oil reservoir and middle oil reservoir wall place zone isolation packer 8 above sealing drum 4, oil pipe is suppressed, if pressure increase, show that zone isolation packer 8 is setting qualified, if pressure drop, show that zone isolation packer is not setting good, need again setting; During each layer of filling, the pack hole 151 of filling crossover tool 15 is made to be positioned at the hole place of each layer sliding sleeve 5; During each layer reacting cycle, the reversing port 152 of filling crossover tool 15 is made to be positioned at sliding sleeve 5 place of each layer.
Wherein, described pressure measurement ball valve 16 Fig. 4 is shown in stowing operation, and rotary location tool 17 is in positioning states, and now pressure measurement ball valve 16 is in two-way negotiable state.Under filling during oil reservoir, service aid is transferred to filling position, load fluid enters from service aid, by the pack hole 151 of the filling crossover tool 15 of service aid, hole on most next stage sliding sleeve 5 enters sleeve pipe, lower oil reservoir is entered by perforated interval, liquid enters outer tubing string by screen casing 7, service aid is entered from bottom isolating seal 20 times stomidiums, through the inlet opening 168 of pressure measurement ball valve 16, inlet opening 160, the double shell 153 arriving filling crossover tool 15 enters in the annular space between the washing pipe 13 of service aid and central tube 14, 121 annular spaces entering sleeve pipe and service aid that portal that return again through setting instrument 12 set up direct circulation, complete bottom filling.In filling, oil reservoir is identical with oil reservoir method under filling with the method for upper oil reservoir; In reacting cycle process, rotary location tool 17 is in non-locating state, and rotary location tool 17 can pass through sealing drum 4 all the time, and now pressure measurement ball valve 16 is changed to ball-and-seat, and current can only circulate from bottom to up.During reacting cycle, be as the criterion with filling position, on carry service aid, the reversing port 152 of filling crossover tool 15 is positioned at most next stage sliding sleeve 5 place, suppressed by sleeve pipe, current portal in 121 annular spaces entered between the washing pipe 13 of service aid and central tube 14 from returning setting instrument 12, pressure measurement ball valve 16 is arrived by the double shell 153 of filling crossover tool 15, now, ball 167 in the tested pressure ball valve 16 of current stops, bottom cannot be entered into by inlet opening 168, current can only on return, on filling crossover tool 15, reversing port 152 enters outer tubing string, on filling crossover tool 15, pack hole 151 enters in service aid again, the Relict Sand that current carry in service aid takes ground out of, set up reacting cycle.
Wherein, described repeatedly commutation location is by realizing with coordinating of the sealing drum 4 of outer tubing string shown in rotary location tool 17 Fig. 3 of service aid.On carry service aid, top connection 171 drives guide peg 172, central tube 173 moves up, now the thrust of energizing spring 174 can promote back-up ring 175 and elastic locating sleeve 177 moves down, drive sliding cylinder bearing pin 176 along the J type rail moving on central tube 173 simultaneously, guide peg 172 pairs of elastic locating sleeves 177 do not play a supportive role, make elastic locating sleeve 177 be in compressed state, rotary location tool 17 is by sealing drum 4.Transfer service aid, central tube 173 and elastic locating sleeve 177 produce existing to movement, sliding cylinder bearing pin 176 slides in the J type groove of central tube 173, if slide in short groove, be in by state, then need to carry and transfer service aid again, until sliding cylinder bearing pin 176 is in elongated slot, guide peg 172 pairs of elastic locating sleeves 177 play a supportive role, and the outer lug boss of elastic locating sleeve 177 tangles sealing drum 4, and now rotary location tool 17 is in positioning states.
Wherein, shown in sliding sleeve 5 Fig. 5, mainly comprise filling corresponding aperture 51, sliding sleeve switch 52, stop collar 53, filling sliding sleeve 54 and sliding sleeve sealing drum 55.
Wherein, shown in described two-way sliding sleeve switch instrument 19 Fig. 6, on carry service aid, getting out of a predicament or an embarrassing situation of two-way claw 193 on two-way sliding sleeve switch instrument 19 tangles the top small stair that sliding sleeve 5 is positioned at the sliding sleeve switch 52 on outer tubing string, it is made to drive the sliding sleeve switch 52 on sliding sleeve 5 to move upward together, lock claw now on sliding sleeve switch 52 enters the positioning step on stop collar 53, inclined-plane, two-way claw 193 upper end simultaneously on two-way sliding sleeve switch instrument 19 is subject to the extruding of the stop collar 53 in sliding sleeve 5, two-way claw 193 compresses cylindrical screw stage clip 194, cylindrical screw stage clip 194 shrinks, two-way claw 193 is got out of a predicament or an embarrassing situation to depart from sliding sleeve switch 52, pack hole 51 on sliding sleeve 5 is closed by sliding sleeve switch instrument 19, transfer service aid, topping bar of two-way claw 193 on two-way sliding sleeve switch instrument 19 tangles the bottom small stair that sliding sleeve 5 is positioned at the sliding sleeve switch 52 on outer tubing string, it is made to drive the sliding sleeve switch 52 on sliding sleeve 5 to move downward together, now sliding sleeve switch 52 locks by the positioning step of filling sliding sleeve 54, inclined-plane, two-way claw 193 lower end is subject to the extruding of sliding sleeve 5 upper sliding sleeve sealing drum 55 simultaneously, two-way claw 193 compresses cylindrical screw stage clip 194, cylindrical screw stage clip 194 shrinks, two-way claw 193 is topped bar to depart from the sliding sleeve switch 52 of sliding sleeve 5, pack hole 51 on sliding sleeve 5 is opened by two-way sliding sleeve switch instrument 19.
Shown in wherein said unidirectional sliding sleeve switch instrument 18 Fig. 7, on carry service aid, getting out of a predicament or an embarrassing situation of unidirectional claw 183 on unidirectional sliding sleeve switch instrument 18 tangles the top small stair that sliding sleeve 5 is positioned at upper sliding sleeve switch 52 on outer tubing string, it is made to drive the sliding sleeve switch 52 on sliding sleeve 5 to move upward together, lock claw now on sliding sleeve switch 52 enters the positioning step on stop collar 53, inclined-plane, unidirectional claw 183 upper end simultaneously on unidirectional sliding sleeve switch instrument 18 is subject to the extruding of sliding sleeve 5 internal position limited sleeve 53, unidirectional claw 183 compresses cylindrical screw stage clip 184, cylindrical screw stage clip 184 shrinks, unidirectional claw 183 is got out of a predicament or an embarrassing situation to depart from sliding sleeve switch 52, pack hole 51 on sliding sleeve 5 is closed by unidirectional sliding sleeve switch instrument 18, because the unidirectional claw 183 of unidirectional sliding sleeve switch instrument 18 is only with leave from office terrace, so when only carrying on service aid, realizes the closedown of sliding sleeve 5, opening of sliding sleeve 5 can not be realized.
Wherein, described by shown in lining 3 Fig. 8 and the cooperation of seal with buss cylinder 2 realize zone isolation packer 8 test envelope: complete when zone isolation packer 8 is setting, when testing envelope zone isolation packer 8, casing annulus is provided with between described service aid and described outer tubing string, circulation annular space is provided with between the washing pipe 13 of described service aid and central tube 14, described outer tubing string is respectively arranged with lining 3 and seal with buss cylinder 2, joint ring 303 on described lining 3 seals with lower contact 22 phase of described seal with buss cylinder 2, inner seal liner 301 on described lining 3 seals at any time with described washing pipe 13, in whole stowing operation, described casing annulus and stratum isolated, to check the setting situation of zone isolation packer 8.
Wherein, the implementation of described lining locking is: described lining 3 is provided with location lock dog 302, the inner chamber of the top connection 21 of described seal with buss cylinder 2 is provided with groove 23, and described location lock dog 302 matches with described groove 23, realizes the locking of described lining 3.
Wherein, the described way of recycling realizing described lining is: above carry described service aid, described filling crossover tool 15 is carried to described lining 3 place, the lining sliding sleeve 308 tangling described lining 3 on nipple 155 on described filling crossover tool, shear pin 310 on described lining 3 is cut off, now described lining sliding sleeve 308 is carried with on described filling crossover tool 15, fixture block 300 on described lining 3 falls in the groove of described lining sliding sleeve 308, positioning pipe 309 on described lining 3 loses the support of described fixture block 300, slide downward under spring 305 active force on described lining 3, drive described location lock dog 302 slide downward simultaneously, described location lock dog 302 is made to fall in the lower recess of coupled positioning tube 306, thus realize the recovery of described lining 3.
Claims (10)
1. a single multilayer gravel pack methods, is characterized in that: the method comprises the following steps:
(1) enter single multilayer gravel pack tools under, then carry outer tubing string kimonos on the whole and to work tool, by the load display on suspending weight device, confirmed whether described single multilayer gravel pack tools is lowered into position; After confirming that described single multilayer gravel pack tools is lowered into position, plug-in type location sealing bar (9) and automatic guide guide shoe (11) are inserted in sump packer (10);
(2) suppress to oil pipe and make setting instrument (12) setting top packer (1), then suppress to sleeve pipe, test the described top packer of envelope (1) setting whether qualified; Described top packer (1) setting qualified after, described setting instrument (12) is given up described top packer (1);
(3) described service aid is promoted, filling crossover tool (15) in described service aid also rises thereupon, when the pack hole (151) of described filling crossover tool (15) is positioned at zone isolation packer (8) place, setting described zone isolation packer (8); Continue to promote described service aid, when described pack hole (151) is promoted to sealing drum (4) place above described zone isolation packer (8), check described zone isolation packer (8) setting whether qualified; Transfer described service aid, when being positioned at filling corresponding aperture (51) place on the sliding sleeve on the described outer tubing string at this filling bed place when described pack hole (151), carry out the loop test before packing job, ladder test and minute-pressure and split test, filling oil reservoir also carries out direct circulation operation; Continue to promote described service aid, when the reversing port (152) of described filling crossover tool (15) is positioned at described sliding sleeve (5) place at this filling bed place, carry out reacting cycle operation;
(4) after reacting cycle operation completes, transfer described service aid to filling position, whether inspection filling is qualified, re-starts filling and carry out filling inspection when filling is defective; Confirm filling qualified rear on carry described service aid, the sliding sleeve switch instrument on described service aid will cut out described sliding sleeve (5), to oil pipe suppress inspection described sliding sleeve (5) close situation, if pressure rising, then show that described sliding sleeve (5) is in closed condition; If pressure drop, then show that described sliding sleeve (5) is not closed, then again close described sliding sleeve (5) operation, and inspection institute states sliding sleeve (5) closedown situation again;
(5) successively according to the method successively filling from bottom to top of step (3), (4), until the superiors' filling is complete.
2. single multilayer gravel pack methods according to claim 1, it is characterized in that: in described filling oil reservoir process, rotary location tool (17) in described service aid is in positioning states, now pressure measurement ball valve (16) is in two-way negotiable state, and current can realize from top to bottom and two kinds of circulation styles from bottom to up; In described reacting cycle process, when described rotary location tool (17) is in non-locating state, described pressure measurement ball valve (16) becomes one way valve, and current can only circulate from bottom to up.
3. single multilayer gravel pack methods according to claim 2, it is characterized in that: the location conversion method of described rotary location tool is: by carry described service aid, the top connection (171) of described rotary location tool (17) drives guide peg (172), central tube (173) moves up, now the active force of energizing spring (174) can promote back-up ring (175) and elastic locating sleeve (177) relative to described guide peg (172), described central tube (173) moves down, drive sliding cylinder bearing pin (176) along the J type rail moving on central tube (173) simultaneously, described guide peg (172) does not play a supportive role to described elastic locating sleeve (177), described elastic locating sleeve (177) is made to be in compressive state, described rotary location tool (17) is by sealing drum (4), transfer service aid, described central tube (173) and described elastic locating sleeve (177) produce relative movement, described sliding cylinder bearing pin (176) is slided in described J type groove, when described sliding cylinder bearing pin (176) is positioned at the short groove of described J type groove, now described rotary location tool (17) is in and passes through state, on carry and transfer service aid again, until described sliding cylinder bearing pin (176) is positioned at the elongated slot of described J type groove, described guide peg (172) plays a supportive role to described elastic locating sleeve (177), the outer lug boss of described elastic locating sleeve (177) tangles sealing drum (4), now described rotary location tool (17) is in positioning states.
4. the single multilayer gravel pack methods according to claims 1 or 2 or 3, it is characterized in that: it is realized by the sliding sleeve switch instrument on described service aid that described sliding sleeve (5) is closed: when described service aid is carried, sliding sleeve switch (52) on described sliding sleeve moves upward together with matching with described sliding sleeve switch instrument, after described sliding sleeve switch puts in place, claw on described sliding sleeve switch instrument is subject to the extruding of described sliding sleeve, described claw shrinks and departs from described sliding sleeve, realizes the closedown of described sliding sleeve.
5. single multilayer gravel pack methods according to claim 4, it is characterized in that: described sliding sleeve switch instrument is unidirectional sliding sleeve switch instrument (18), on carry described service aid, getting out of a predicament or an embarrassing situation of unidirectional claw (183) on described unidirectional sliding sleeve switch instrument (18) tangles the top small stair of described sliding sleeve switch (52), it is made to drive the described sliding sleeve switch (52) on sliding sleeve (5) to move upward together, lock claw now on described sliding sleeve switch (52) enters the positioning step on the stop collar (53) in described sliding sleeve (5), described unidirectional claw (183) inclined-plane, upper end is subject to the extruding of described stop collar (53) simultaneously, described unidirectional claw (183) compression cylindrical screw stage clip (184), described cylindrical screw stage clip (184) is shunk, described unidirectional claw (183) is got out of a predicament or an embarrassing situation to depart from described sliding sleeve switch (52), described filling corresponding aperture (51) is closed by described unidirectional sliding sleeve switch instrument (18).
6. single multilayer gravel pack methods according to claim 4, it is characterized in that: described sliding sleeve switch instrument is two-way sliding sleeve switch instrument (19), on carry described service aid, getting out of a predicament or an embarrassing situation of two-way claw (193) on described two-way sliding sleeve switch instrument (19) tangles the top small stair of described sliding sleeve switch (52), it is made to drive described sliding sleeve switch (52) to move upward together, lock claw now on described sliding sleeve switch (52) enters the positioning step on the stop collar (53) in described sliding sleeve (5), described two-way claw (193) inclined-plane, upper end is subject to the extruding of described stop collar (53) simultaneously, described two-way claw (193) compression cylindrical screw stage clip (194), described cylindrical screw stage clip (194) is shunk, described two-way claw (193) is got out of a predicament or an embarrassing situation to depart from described sliding sleeve switch (52), filling corresponding aperture (51) on described sliding sleeve (5) is closed by described sliding sleeve switch instrument (19).
7. single multilayer gravel pack methods according to claim 6, it is characterized in that: the mode that described two-way sliding sleeve switch instrument (19) opens described sliding sleeve (5) is: transfer service aid, topping bar of described two-way claw (193) tangles the bottom small stair of described sliding sleeve switch (52), it is made to drive described sliding sleeve switch (52) to move downward together, now described sliding sleeve switch (52) locks by the positioning step of filling sliding sleeve (54), described two-way claw (193) inclined-plane, lower end is subject to the extruding of the sliding sleeve sealing drum (55) on described sliding sleeve (5) simultaneously, described two-way claw (193) compresses described cylindrical screw stage clip (194), described cylindrical screw stage clip (194) is shunk, described two-way claw (193) is topped bar to depart from described sliding sleeve switch (52), filling corresponding aperture (51) on described sliding sleeve (5) is opened by described two-way sliding sleeve switch instrument (19).
8. the single multilayer gravel pack methods according to claims 1 or 2 or 3, it is characterized in that: between described service aid and described outer tubing string, be provided with casing annulus, circulation annular space is provided with between the washing pipe (13) of described service aid and central tube (14), described outer tubing string is respectively arranged with lining (3) and seal with buss cylinder (2), joint ring (303) on described lining (3) seals mutually with the lower contact (22) of described seal with buss cylinder (2), inner seal liner (301) on described lining (3) and described washing pipe (13) seal at any time, in whole stowing operation, described casing annulus and stratum isolated, to check zone isolation packer (8) setting situation.
9. single multilayer gravel pack methods according to claim 8, it is characterized in that: described lining (3) is provided with location lock dog (302), the inner chamber of the top connection (21) of described seal with buss cylinder (2) is provided with groove (23), matching with described groove (23) in described location lock dog (302), realizes the locking of described lining (3).
10. single multilayer gravel pack methods according to claim 9, it is characterized in that: above carry described service aid, described filling crossover tool (15) is carried to described lining (3) place, the lining sliding sleeve (308) tangling described lining (3) on nipple (155) on described filling crossover tool, shear pin (310) on described lining (3) is cut off, now described lining sliding sleeve (308) is carried with on described filling crossover tool (15), fixture block (300) on described lining (3) falls in the groove of described lining sliding sleeve (308), positioning pipe (309) on described lining (3) loses the support of described fixture block (300), slide downward under spring (305) active force on described lining (3), drive described location lock dog (302) slide downward simultaneously, described location lock dog (302) is made to fall in the lower recess of coupled positioning tube (306), thus realize the recovery of described lining (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210534469.4A CN103015952B (en) | 2012-12-12 | 2012-12-12 | Method for packing multiple layers of gravel in one time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210534469.4A CN103015952B (en) | 2012-12-12 | 2012-12-12 | Method for packing multiple layers of gravel in one time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015952A CN103015952A (en) | 2013-04-03 |
| CN103015952B true CN103015952B (en) | 2015-07-15 |
Family
ID=47964997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210534469.4A Active CN103015952B (en) | 2012-12-12 | 2012-12-12 | Method for packing multiple layers of gravel in one time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103015952B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206195B (en) * | 2013-04-22 | 2016-02-10 | 中国海洋石油总公司 | Filling crossover tool |
| CN103216203B (en) * | 2013-04-22 | 2015-10-21 | 中国海洋石油总公司 | Sand control top crossover tool |
| CN103266869B (en) * | 2013-05-27 | 2015-09-09 | 中国石油天然气股份有限公司 | Horizontal well subsection gravel pack service tool |
| CN104420857A (en) * | 2013-09-04 | 2015-03-18 | 中国石油天然气股份有限公司 | Gravel filling method and gravel layer of a direction well |
| CN104775802B (en) * | 2015-03-26 | 2017-02-22 | 中国石油化工股份有限公司 | Separate-layer fracturing sand control string for thermal production well and sand control method thereof |
| CN104790909B (en) | 2015-04-09 | 2018-06-05 | 中国石油集团西部钻探工程有限公司 | The retrievable pitching sliding sleeve of ball seat |
| CN104879099B (en) * | 2015-04-28 | 2017-11-10 | 中国海洋石油总公司 | Gravel fills tubing string and gravel pack methods |
| CN106761643A (en) * | 2016-12-26 | 2017-05-31 | 中国石油天然气股份有限公司 | A kind of system and method for the continuous back-up sand separate stratum fracfturing of achievable water-jet |
| CN107762444B (en) * | 2017-06-26 | 2021-07-02 | 中国海洋石油集团有限公司 | Integrated tubular column for well cementation and sand prevention and use method |
| CN107654220B (en) * | 2017-10-16 | 2019-12-06 | 苏州元联科技创业园管理有限公司 | Construction method of integral layered filling device |
| CN110318673A (en) * | 2018-03-30 | 2019-10-11 | 中国石油化工股份有限公司 | Radially horizontal well exploits shale oil method between salt |
| CN109162680B (en) * | 2018-10-31 | 2023-07-11 | 中国石油化工股份有限公司 | Out-of-pipe segmented gravel pack completion string and completion method |
| CN114075947A (en) * | 2020-08-13 | 2022-02-22 | 中国石油化工股份有限公司 | Self-adaptive water and acid pickling integrated pipe column and acid pickling method |
| CN117127946B (en) * | 2023-10-27 | 2023-12-22 | 山东巨辉石油科技有限公司 | Integral filling tool for underground operation of oil field |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270641A (en) * | 2008-04-30 | 2008-09-24 | 安东石油技术（集团）有限公司 | Miniature gravel filling simulation device and method for measuring gravel filling effect |
| CN101435321A (en) * | 2008-12-26 | 2009-05-20 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well tube exterior subsection gravel filling sand prevention process and pipe column |
| CN101906954A (en) * | 2010-08-05 | 2010-12-08 | 中国石油化工股份有限公司 | Layering sand-control layering oil production integrated pipe column |
| CN102134982A (en) * | 2011-02-11 | 2011-07-27 | 孔利生 | Multilayer gravel packing method and tool |
| CN102337869A (en) * | 2011-09-04 | 2012-02-01 | 中国石油化工股份有限公司 | Method for sand distribution and prevention of oil well via gravel filling according to particle size level |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8127847B2 (en) * | 2007-12-03 | 2012-03-06 | Baker Hughes Incorporated | Multi-position valves for fracturing and sand control and associated completion methods |
-
2012
- 2012-12-12 CN CN201210534469.4A patent/CN103015952B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270641A (en) * | 2008-04-30 | 2008-09-24 | 安东石油技术（集团）有限公司 | Miniature gravel filling simulation device and method for measuring gravel filling effect |
| CN101435321A (en) * | 2008-12-26 | 2009-05-20 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Horizontal well tube exterior subsection gravel filling sand prevention process and pipe column |
| CN101906954A (en) * | 2010-08-05 | 2010-12-08 | 中国石油化工股份有限公司 | Layering sand-control layering oil production integrated pipe column |
| CN102134982A (en) * | 2011-02-11 | 2011-07-27 | 孔利生 | Multilayer gravel packing method and tool |
| CN102337869A (en) * | 2011-09-04 | 2012-02-01 | 中国石油化工股份有限公司 | Method for sand distribution and prevention of oil well via gravel filling according to particle size level |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103015952A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103015952B (en) | Method for packing multiple layers of gravel in one time | |
| CN104879099B (en) | Gravel fills tubing string and gravel pack methods | |
| CN104612647B (en) | Switchable separate stratum fracturing well cementation sliding sleeve and its construction method | |
| US20090025923A1 (en) | Technique and system for completing a well | |
| CN102134982B (en) | Multilayer gravel packing method and tool | |
| CN102510930B (en) | Fracturing and gravel packing tool with multi movement wash pipe valve | |
| CN101725330B (en) | Drilling-and-plugging-free well fixing method and tool | |
| CN202900205U (en) | Multifunctional formation testing well completion integral pipe column | |
| CN104695915A (en) | Sand washing and prevention integrated completion pipe string and control method thereof | |
| NO20170834A1 (en) | Gravel pack service tool with enhanced pressure maintenance | |
| CN101832121A (en) | Horizontal well circulating gravel packing sand retention device | |
| CN110017121B (en) | Primary multilayer gravel packing tool for large-span perforation section | |
| CN111119784B (en) | Suspension plugging device for open hole well and using method | |
| US20100230098A1 (en) | One Trip Gravel Pack Assembly | |
| CN112302563B (en) | Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof | |
| CN102817597A (en) | Three-layer insertion pipe mechanical water exploration and plugging method and water exploration and plugging pipe column | |
| CN201396153Y (en) | Multi-time underground sampling device | |
| CN203008874U (en) | Lining used for gravel filling tool | |
| CN204552708U (en) | One rushes sand prevention integrated completion tubular column | |
| CN102966337B (en) | A kind of lining on gravel pack tools | |
| CN201225121Y (en) | Oil gas well selective completion tool | |
| CN109184635B (en) | Method for judging main gas production layer of coal-bed gas well | |
| CN107100587A (en) | For the channeling test of cement sheath in Petroleum Production, water blockoff, test inside back cover unification process pipe string | |
| CN207296978U (en) | A kind of blocking water, oil production by layer integrated pipe column | |
| CN206737884U (en) | For the channeling test of cement sheath in Petroleum Production, water blockoff, test inside back cover unification process pipe string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160616 Address after: 257091 Shandong Province, Dongying City West Bridge Road East Taishan five Patentee after: Shandong Ruifeng Petroleum Technology Co., Ltd. Patentee after: Dongying Ruifeng Petroleum Development Co., Ltd. Patentee after: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. Address before: 257091 Shandong Province, Dongying City West Bridge Road East Taishan five Patentee before: Shandong Ruifeng Petroleum Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170928 Address after: 257091 Shandong city of Dongying Province Economic and Technological Development Zone in the state of Chu Road No. 5 Co-patentee after: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. Patentee after: Dongying Ruifeng Petroleum Development Co., Ltd. Address before: 257091 Shandong Province, Dongying City West Bridge Road East Taishan five Co-patentee before: Dongying Ruifeng Petroleum Development Co., Ltd. Patentee before: Shandong Ruifeng Petroleum Technology Co., Ltd. Co-patentee before: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right |