CN104100250A - Integrated pipe column system and fracturing process method for staged fracturing well completion of open hole horizontal well - Google Patents
Integrated pipe column system and fracturing process method for staged fracturing well completion of open hole horizontal well Download PDFInfo
- Publication number
- CN104100250A CN104100250A CN201310129579.7A CN201310129579A CN104100250A CN 104100250 A CN104100250 A CN 104100250A CN 201310129579 A CN201310129579 A CN 201310129579A CN 104100250 A CN104100250 A CN 104100250A
- Authority
- CN
- China
- Prior art keywords
- fracturing
- ball
- well
- pressure
- pressure break
- 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.)
- Pending
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to an integrated pipe column for staged fracturing well completion of an open hole horizontal well and an operating method thereof. The pipe column comprises a wellhead device, a ball throwing and catching tool, a sleeve, a tubing string and a staged fracturing pipe column string; the staged fracturing pipe column string is arranged in an open hole well section and comprises a suspended tail pipe and at least ten groups of staged fracturing composite members; the staged fracturing composite members are arranged at intervals along the length direction of the open hole well section; each set of staged fracturing composite member comprises an open hole sealing packer, a hydraulic centralizer and a fracturing slide bushing; one end of the suspended tail pipe is connected with the lower end port of the tubing string; by matching of the wellhead device, the ball throwing and catching tool and the underground staged fracturing pipe column, the operating method implements an effect of casing off the open hole horizontal well into the pipe column for once and implements an integrated process of multi-stage fracturing well completion of the open hole horizontal well. According to the invention, case-off ability of the pipe column and reliability of fracturing implementation are strengthened.
Description
Technical field
The present invention relates to fractured horizontal well reforming technology in oil extraction process, especially a kind of open-hole horizontal well staged fracturing completion integral tubular column system and fracturing technology method.
Background technology
Fractured horizontal well is that current horizontal well improves one of effective method of single well productivity, especially low-permeability oil deposit fractured horizontal well transformation.Along with the extensive application of unconventional oil gas horizontal well, gradually the fracture technology of straight well is applied in horizontal well, reasonably fracturing string technology is the key of safe and effective carrying out horizontal well staged fracturing technique.
Chinese patent CNl0110512l discloses a kind of horizontal well machinery staged fracturing tool string, this tool string is mainly by safety joint, centralizer, packer, pressure-guiding sand blower and guiding plug form, this tool string has improved sand setting safety in fracturing process, but the security performance of fracturing technology is comparatively limited.
Chinese patent CNl01338663 discloses horizontal well machinery staged fracturing card envelope process pipe string, and this tubing string reduces the distance between pressure-guiding sand blower and right side packer, thus the safety that the sand setting of minimizing packer upper end has improved tubing string.
Chinese patent CNl01560887 discloses a kind of horizontal well packer staged fracturing technology tube pillar, this tubing string adopt across every formula packer to the packing of target interval, by pitching, realize layer fracturing technology that change of layer 2-3 section.
Chinese patent CN201396131 discloses a kind of horizontal well staged fracturing tubular column, by safety joint is installed between packer, can when meeting card, can carry out in time unfreezing processing.
Chinese patent CN201714364 discloses a kind of tubular column for horizontal well barefoot well completion staged fracturing acidizing tool, and this tubing string sets isolated interval by open hole packer, and pitching is opened fracturing sliding bush and realized 5-6 section volume increase transformation.
Chinese patent CN201902202 discloses a kind of staged fracturing string of oil-gas horizontal well, and tubing string adopts hydraulic anchor grappling, and packer setting sliding sleeve sandblast pressure break is mainly applicable to the staged fracturing reforming technology of cased hole completion.
Chinese patent CN201908640 discloses a kind of anti-buried horizontal well staged fracturing tubular column, and this tubing string, by the continuous circulation of inner and outer ring empty tube column liquid stream, avoids sand to bury packer and stuck tubing string.
Above-mentioned prior art is mainly to have described fracturing strings, but there is no the description of well head supporting technology and process, and applicable pressure break hop count is less, implements safety Design and describes the reinforcement that has much room for improvement, and can not meet the application requirements of horizontal well fast development.
Summary of the invention
The present invention is the problems such as the pressure break hop count of the existing horizontal well fracturing completion tubing string of solution is less, safety is lower, a kind of open-hole horizontal well staged fracturing completion integral tubular column system and fracturing technology method are provided, at least 10 sections of fracturing without pulling string have been realized, the operability that raising tubing string is lowered to and the safety of fracturing technology.
Design scheme of the present invention is as follows;
Open-hole horizontal well staged fracturing completion integral tubular column system, described integrated pipe column system comprises wellhead assembly l, throws and catch ball instrument, sleeve pipe 3, tubing string 4 and fracturing strings string; Described wellhead assembly l and throwing are caught ball instrument and are arranged on horizontal well head; Described tubing string 4 is arranged in described sleeve pipe 3 and described fracturing strings string is connected with the lower end of described tubing string 4;
Described fracturing strings string is arranged in barefoot interval 9, and it comprises suspension tail pipe 7 and at least 10 set of segmentation pressure break composite membeies; Each is organized described staged fracturing composite member and is arranged on described suspension tail pipe 7 along described barefoot interval 9 direction intervals; Described in every group, staged fracturing composite member comprises bore hole seal pack device, hydraulic centralizing device and fracturing sliding bush; One end of described suspension tail pipe 7 is connected with described tubing string 4 lower port;
Described integrated pipe column system by hydraulic pressure and pitching to described barefoot interval 9 pressure break step by step, by described wellhead assembly l and throwing, catch ball instrument at least 10 set of segmentation pressure break composite membeies are carried out to pressure break, complete that bore hole seal pack device sets, fracturing sliding bush is opened and realize the fracturing reform of each isolated interval and the input of ball and catch recovery.
Described fracturing strings string also comprises a pair of bore hole anchoring packer 10 and differential fracturing sliding bush 19; Described a pair of bore hole anchoring packer is anchored to described fracturing strings string two ends, and sets between described suspension tail pipe 7 and barefoot interval 9; Described each set of segmentation pressure break composite member is arranged between a pair of described bore hole anchoring packer;
Bore hole anchoring packer has replaced hydraulic anchor slips anchoring of the prior art, has strengthened the reliability of fracturing string grappling, effectively reduces tubing string and is lowered in process, be hampered card risk and accident treatment difficulty.
Described differential fracturing sliding bush 19 is arranged on the toe-end of described barefoot interval 9, is arranged in the fracturing section of horizontal well end one-level.
Described fracturing strings string starts to be disposed with to toe-end the described bore hole anchoring packer of described bore hole anchoring packer, at least 10 set of segmentation pressure break composite membeies and end from described barefoot interval 9; Each is organized described staged fracturing composite member and comprises that bore hole seal pack device, hydraulic centralizing device and pitching can bore fracturing sliding bush;
Described hydraulic centralizing device, for righting tubing string, guarantees that tubing string is effectively placed in the middle, improves packer sealing effect; Described in each, pitching can be bored fracturing sliding bush and according to described throwing, caught each size of throwing in ball instrument ball that builds the pressure and open sliding sleeves at different levels.
In concrete enforcement, the number that hydraulic centralizing device is applied in a bite well is used the conditions such as number, well track and tubing string mechanical calculation comprehensively to determine according to packer; Hydraulic centralizing device is arranged on top or the bottom of packer, and each packer arranges at most a hydraulic centralizing device;
Described differential fracturing sliding bush 19 is double-piston hydraulic switch, comprises pair of pistons, and described double-piston hydraulic switch is arranged on and hangs on tail pipe 7, on described suspension tail pipe 7, sand jet outlet is set, and a pair of described piston is symmetricly set on and hangs on tail pipe 7 external surfaces along pipeline; A pair of described piston is fixed on described suspension tail pipe 7 by shear pin; A pair of described piston is for sand jet outlet described in switch; By giving described suspension tail pipe 7 pressurizations, make the inside and outside pressure differential of double-piston hydraulic switch act on mineralization pressure on piston, cut off shear pin, and promote pair of pistons and move to two ends, when described piston moves to a certain position respectively, described sand jet outlet is opened, and flow channels is opened, the lasting unlatching that keeps passage is fracturing fluid or liquid carrying confession flow channel.
In concrete enforcement, a pair of described piston comprises upper piston 26 and lower piston 31, it is set in described suspension tail pipe 7 two ends, covered respectively the sand jet outlet that hangs tail pipe 7 two ends, the sand jet outlet of upper piston 26 one end is upper sand jet outlet 32, and the sand jet outlet that is positioned at lower piston 31 one end is lower sand jet outlet 33; A pair of described piston is compressed spring type piston, hangs the interior liquid of tail pipe 7 by the sand jet outlet circular passage of flowing through, and enters spring place cavity, and conduction hydraulic pressure, only acts on piston inner side, thereby move at inside and outside differential pressure effect lower piston, opens sand jet outlet.In work progress, hang pressure in tail pipe 7 higher than the pressure of tubing string outside, different pressures acts on inside and outside piston, forms axial force, surpassing shear pin cuts off after load, shear pin is cut off, and upper piston 26 and lower piston 31 be respectively to two side shiftings, thereby sand jet outlet 32 and lower sand jet outlet 33 are opened.
Described throwing is caught ball instrument and is comprised ball pitching tool and catch ball instrument, described ball pitching tool is by the gate on described wellhead assembly l, in fracturing string in ball input well, fracturing liquid in pipeline is sent into ball in the ball seat of fracturing sliding bush, by beating hydraulic way, opens this fracturing sliding bush and carries out pressing crack construction;
The described ball instrument row of returning after pressing crack construction completes of catching, ball in well is discharged ground and is entered ground and return in comb line along with liquid in well returns, at surface line end, connect one section of screen casing with plug, prevent owing to returning discharging liquid pressure high, cause the injury of ball to people and thing of returning out ground with liquid, after the row of returning finishes, described screen casing is disassembled, ball is taken out and reclaimed.
Described integrated pipe column system also comprises potted component 5 and tail tube hanging packer 6; Described potted component 5 sets at described tubing string 4 and hangs between tail pipe 7; On the length direction of described potted component 5 external surfaces, be arranged at intervals with at least 20 sealing rings;
Described tail tube hanging packer 6 sets between described suspension tail pipe 7 and sleeve pipe 3.
Described tubular column system also comprises well washing switch 23 and guider with holes 24;
The external surface of described guider with holes 24 is smooth, spherical, and it is arranged on the end port place of described suspension tail pipe 7;
The effect of guider 24 with holes has two, and the one, there is interior latus rectum can guarantee liquid communication, the 2nd, outer face is smooth, spherical, in the process of going into the well, frictional resistance is little, reduces the risk of the card that is hampered.
Described well washing switch 23 is arranged on described guider with holes 24 inner sides, and is arranged in described suspension tail pipe 7, and described well washing switch 23 one end are connected with described fracturing strings string, and the other end is connected with described guider 24 with holes.
Described tubular column system also comprises casing shoe 8; Described casing shoe 8 is arranged on the lateral wall of described sleeve pipe 3 bottoms;
Described wellhead assembly is in oil, gas drilling, is arranged on well head for controlling gas, liquid (oil, water etc.) fluid pressure and direction, suspension sleeve, oil pipe, and seal the device of oil pipe and sleeve pipe and each layer of sleeve pipe annular space.Generally by casing head, tubing head, blowout preventer set, four-way, bypass pipe fitting, formed.
According to the process of carrying out pressure break of described integrated pipe column, described process is to described barefoot interval 9 pressure break step by step by hydraulic pressure and pitching, by described wellhead assembly l and throwing, catch ball instrument at least 10 set of segmentation pressure break composite membeies are carried out to pressure break, complete that bore hole seal pack device sets, fracturing sliding bush is opened and realize the fracturing reform of each isolated interval and the input of ball and catch the process of recovery.
The concrete steps of described process are,
Step 1, integral type tubular column system step under open-hole horizontal well:
Step 11 is described sleeve pipe 3 G.I.Hs, and respectively described sleeve pipe 3 well sections and barefoot interval 9 carried out to the processing of drifting pipe cleaning,
Step 12 is lowered into described fracturing strings string in described barefoot interval 9, and opens described well washing switch 23 and carry out well-flushing, until occur without the card phenomenon that is hampered;
Hydraulic centralizing device, in the process of going into the well, is controlled in closure state because of shear pin, and the external diameter of hydraulic centralizing device is little, guarantees to go into the well safety; Arrive after design well depth, inside adds hydraulic pressure, and hydraulic coupling promotes piston and cuts off shear pin motion, struts hydraulic centralizing device to sleeve pipe 3 or open-hole horizontal well 9 boreholes wall, realizes the effectively placed in the middle of fracturing strings string; After inner pressure release, due to the effect of step-by-step movement screw thread locking mechanism, guarantee that hydraulic centralizing device can not rollback, guarantee its permanent effectively work.
Step 13 is inserted described tubing string 4 in described suspension tail pipe 7, and by described potted component 5 sealings, described wellhead assembly l and throwing is caught to ball instrument and be arranged on well head place;
Step 2, pressure break step:
Barefoot interval 9 toe-end level-1 areas described in step 2l pressure break: fracturing fluid flow to described differential fracturing sliding bush 19 through hydraulic line, utilize hydraulic pressure to cut off a pair of shear pin and promote a pair of described piston and to two ends, move respectively, when a pair of described piston moves to a certain position respectively, sand jet outlet is opened, be that described differential fracturing sliding bush 19 is opened, complete the pressure break work of this section of separated region;
The ball that builds the pressure described in step 22 sets and can bore on ball seat under fracturing fluid drives, piston and can bore ball seat and produce up and down hydraulic pressure, utilize hydraulic pressure and described in the ball that builds the pressure build the pressure and cut off shear pin, and promote described descent of piston and move, thereby make described pitching can bore fracturing sliding bush, open, complete the pressure break work of this section of separated region;
Step 23 is pressure break step by step: according to fracturing sliding bushs at different levels, throw in the ball that builds the pressure of corresponding size, described barefoot interval 9 is carried out to pressure break step by step, repeating said steps 22, in realization piecemeal, returns pressure break;
Step 3, pressure break finishes: after pitching pressure break completes, fracturing fluid is returned and drained into ground waste liquid pool or waste liquid tank by described fracturing strings string, described in build the pressure ball with the anti-well head that drains into of the fracturing fluid in well, by described throwing, catch ball instrument and reclaim;
Step 4, takes out described tubing string 4, retains described tail tube hanging packer 6 and usings lower tubular column string part as completion tubular column, and be lowered to flow string and produce.
In described step l, the process that drifting pipe cleaning is processed is:
Adopt drift size gauge tool and pipeline scraper to carry out drifting and pipe cleaning processing to described sleeve pipe 3 well sections, the wellbore treatments tubing string that adopts former Open-Hole Section size drilling bit and watermelon junk mill to form carries out the processing of drifting pipe cleaning to described barefoot interval 9, and processes to artificial bottom of a well.
Compared with prior art, open-hole horizontal well pressure break completion integral tubing string of the present invention is thrown the combination of catching ball device and underground fracture tubing string string by ground, realize running string of open-hole horizontal well, and under the condition of motionless fracturing string, realized the integral process of many staged fracturings completion of open-hole horizontal well; This technique, by the optimum organization of down-hole string string, strengthens the tripablity of tubing string, the reliability that pressure break is implemented.
Accompanying drawing explanation
Figure l is the structural representation of open-hole horizontal well pressure break completion integral tubing string of the present invention;
Fig. 2 is the partial enlarged drawing of differential fracturing sliding bush in figure l;
Drawing reference numeral explanation:
1-wellhead assembly; 2-throws and catches ball device; 3-sleeve pipe; 4-tubing string; 5-potted component;
5-tail tube hanging packer; 7-hangs tail pipe; 8-casing shoe; 9-barefoot interval;
10-bore hole anchoring packer A; 11-hydraulic centralizing device A; 12-bore hole seal pack device A;
13-pitching can be bored fracturing sliding bush A; 14-bore hole seal pack device B; 15-hydraulic centralizing device B;
16-pitching can be bored fracturing sliding bush B; 17-bore hole seal pack device C; 18-hydraulic centralizing device C;
The differential fracturing sliding bush of 19-; 20-bore hole seal pack device K; 21-bore hole anchoring packer B;
22-hydraulic centralizing device K; 23-well washing switch; 24-guider with holes; 25-central tube;
26-upper piston; 27-spring one; 28-shear pin one; 29-shear pin two; 30-spring two;
31-lower piston; The upper sand jet outlet of 32-; Sand jet outlet under 33-;
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail, protection scope of the present invention is not limited to the following specific embodiment.
The specific embodiment
Open-hole horizontal well staged fracturing completion integral tubular column system as shown in Figure 1, in Fig. 1, complete representation does not go out the structure of 10 set of segmentation pressure break composite membeies, and the middle staged fracturing assembly part repeating adopts omissive representation to represent;
Described integrated pipe column system comprises wellhead assembly l, throws and catch ball instrument, sleeve pipe 3, tubing string 4 and fracturing strings string; Described wellhead assembly l and throwing are caught ball instrument and are arranged on horizontal well head; Described tubing string 4 is arranged in described sleeve pipe 3 and described fracturing strings string is connected with the lower end of described tubing string 4;
Described fracturing strings string is arranged in open-hole horizontal well section, and it comprises suspension tail pipe 7 and 10 set of segmentation pressure break composite membeies; Each is organized described staged fracturing composite member and is arranged on described suspension tail pipe 7 along described open-hole horizontal well section direction interval; Described in every group, staged fracturing composite member comprises bore hole seal pack device 12, hydraulic centralizing device 11 and fracturing sliding bush; One end of described suspension tail pipe 7 is connected with described tubing string 4 lower port;
Described fracturing strings string also comprises bore hole anchoring packer A10 and bore hole anchoring packer B21;
Described bore hole anchoring packer A10 and bore hole anchoring packer B21 are anchored to respectively described fracturing strings string two ends, and set between described suspension tail pipe 7 and open-hole horizontal well section; Described each set of segmentation pressure break composite member is arranged between described bore hole anchoring packer A10 and bore hole anchoring packer B2l.
Described fracturing sliding bush comprises that 1 differential fracturing sliding bush 19 and 9 pitchings can bore fracturing sliding bush;
Described differential fracturing sliding bush 19 is arranged on the toe-end of described barefoot interval 9, is arranged in the fracturing section of open-hole horizontal well section end one-level; In all the other fracturing sections at different levels, be respectively arranged with described pitching drillable fracturing sliding bush;
Described fracturing strings string starts to be disposed with described bore hole anchoring packer A10 to toe-end from described open-hole horizontal well section, hydraulic centralizing device A11, bore hole seal pack device A12, pitching can be bored fracturing sliding bush A13, bore hole seal pack device 14B, hydraulic centralizing device lies prone 5, pitching can be bored fracturing sliding bush B16, bore hole seal pack device C17, hydraulic centralizing device C18, pitching can be bored fracturing sliding bush C, bore hole seal pack device D, hydraulic centralizing device D, pitching can be bored fracturing sliding bush D, bore hole seal pack device E, hydraulic centralizing device E, pitching can be bored fracturing sliding bush E, bore hole seal pack device F, hydraulic centralizing device F, pitching can be bored fracturing sliding bush F, bore hole seal pack device G, hydraulic centralizing device G, pitching can be bored fracturing sliding bush G, bore hole seal pack device H, hydraulic centralizing device H, pitching can be bored fracturing sliding bush H, bore hole seal pack device I, hydraulic centralizing device I, pitching can be bored fracturing sliding bush I, bore hole seal pack device J, hydraulic centralizing device J, differential fracturing sliding bush 19, bore hole seal pack device K20, bore hole anchoring packer B2l and hydraulic centralizing device K22.
As shown in Figure 2, differential fracturing sliding bush 19 comprises box cupling from top to bottom successively, central tube 25, and upper piston 26, spring 1, cuts and orders 1, and shear pin 2 29, spring 2 30 and lower piston 31 connect and compose; Between central tube 25 and box cupling, adopt screwed connection; Upper piston 26 and lower piston 31 be Compress Spring 1 and spring 2 29 respectively, upper piston 26 and lower piston 31 are fixed on the tube wall of central tube 25 by shear pin 1 and shear pin 2 29 respectively, and upper piston 26 and lower piston 31 have hidden respectively upper sand jet outlet 32 and the lower sand jet outlet 33 on central tube 25.
Upper sand jet outlet 32 and lower sand jet outlet 33 are circumferentially uniformly distributed along central tube 25 respectively, and the opening of sand jet outlet is elongated hole, and the sectional area sum of single sand jet outlet is greater than tubing string area of passage, the restriction loss while passing through sand jet outlet to reduce liquid.
Between upper piston 26 and central tube 25, by 0 shape sealing ring one and 0 shape sealing ring two sealings, form cavity one, between upper sand jet outlet 32 and cavity one, have circular passage one.Between lower piston 31 and central tube 25, by 0 shape sealing ring three and 0 shape sealing ring four sealings, form cavity two, between lower sand jet outlet 33 and cavity two, have circular passage two.
It is hydraulic cylinder structure that described pitching can be bored fracturing sliding bush, and it comprises cylinder sleeve, piston, can bore ball seat and shear pin; Described cylinder sleeve, piston and can bore ball seat and all have inner via hole, described piston is fixed on described cylinder sleeve by shear pin, and the described ball seat that bores is fixedly installed on described piston, and described cylinder sleeve sidewall is provided with perforate.
Described throwing is caught ball instrument and is comprised ball pitching tool and catch ball instrument, described ball pitching tool is by the gate on described wellhead assembly 1, in fracturing string in ball input well, fracturing liquid in pipeline is sent into ball in the ball seat of fracturing sliding bush, by beating hydraulic way, opens this fracturing sliding bush and carries out pressing crack construction;
The described ball instrument row of returning after pressing crack construction completes of catching, ball in well is discharged ground and is entered ground and return in comb line along with liquid in well returns, at surface line end, connect one section of screen casing with plug, prevent owing to returning discharging liquid pressure high, cause the injury of ball to people and thing of returning out ground with liquid, after the row of returning finishes, described screen casing is disassembled, ball is taken out and reclaimed.
Between described tubing string 4 and suspension tail pipe 7, set and be provided with potted component 5, on the length direction of described potted component 5 external surfaces, be arranged at intervals with 20 O RunddichtringOs;
Between described suspension tail pipe 7 and sleeve pipe 3, set and be provided with tail tube hanging packer 6.
The end port place of described suspension tail pipe 7 is provided with guider 24 with holes, and the external surface of described guider 24 with holes is smooth, spherical;
Described guider with holes 24 inner sides are provided with well washing switch 23, and well washing switch 23 is arranged in described suspension tail pipe 7; Described well washing switch 23 one end are connected with described fracturing strings string, and the other end is connected with described guider 24 with holes.
On the lateral wall of described sleeve pipe 3 bottoms, be provided with casing shoe 8;
According to the process of carrying out pressure break of described integrated pipe column, described process is to described open-hole horizontal well section pressure break step by step by hydraulic pressure and pitching, by described wellhead assembly l and throwing, catch ball instrument 10 set of segmentation pressure break composite membeies are carried out to pressure break, complete that bore hole seal pack device sets, fracturing sliding bush is opened and realize the fracturing reform of each isolated interval and the input of ball and catch the process of recovery.
The concrete steps of described process are,
Step 1, integral type tubular column system step under open-hole horizontal well:
Step 11 is by described sleeve pipe 3 G.I.Hs, adopt drift size gauge tool and pipeline scraper to carry out drifting and pipe cleaning processing to described sleeve pipe 3 well sections, the wellbore treatments tubing string that adopts former Open-Hole Section size drilling bit and watermelon junk mill to form carries out the processing of drifting pipe cleaning to described open-hole horizontal well section, and processes to artificial bottom of a well.
Step 12 is lowered into described fracturing strings string in described open-hole horizontal well section, and opens described well washing switch 23 and carry out well-flushing, until occur without the card phenomenon that is hampered;
Step 13 is inserted described tubing string 4 in described suspension tail pipe 7, and by described potted component 5 sealings, described wellhead assembly l and throwing is caught to ball device 2 and be arranged on well head place;
Step 2, pressure break step:
Open-hole horizontal well section toe-end level-1 area described in step 21 pressure break: fracturing fluid flow to described differential fracturing sliding bush 19 through hydraulic line, utilize hydraulic pressure to cut off shear pin 1 and shear pin 2 29, under the storage of spring 1, spring 2 30 can act on, promote respectively upper piston 26, lower piston 31 moves at two ends up and down, thereby link up the flow channel outside sand jet outlet and switch, complete the pressure break work of this section of separated region;
Open-hole horizontal well section regions at different levels described in step 22 pressure break: the ball that builds the pressure sets and can bore on ball seat under fracturing fluid drives, piston and can bore ball seat and produce up and down hydraulic pressure, utilize hydraulic pressure and described in the ball that builds the pressure build the pressure and cut off shear pin, and promote descent of piston and move, thereby make described pitching can bore fracturing sliding bush, open, complete the pressure break work of this section of separated region;
Step 23 is pressure break step by step: according to fracturing sliding bushs at different levels, throw in the ball that builds the pressure of corresponding size, described open-hole horizontal well section is carried out to pressure break step by step, repeating said steps 22, in realization piecemeal, returns pressure break;
Step 3, pressure break finishes: after pitching pressure break completes, fracturing fluid is returned and drained into ground waste liquid pool or waste liquid tank by described fracturing strings string, described in build the pressure ball with the anti-well head that drains into of the fracturing fluid in well, and by throwing, catch ball instrument and reclaim;
Step 4, takes out described tubing string 4, retains described tail tube hanging packer 6 and usings lower tubular column string part as completion tubular column, and be lowered to flow string and produce.
Technique scheme is one embodiment of the present invention, for those skilled in the art, the invention discloses on the basis of application process and principle, be easy to make various types of improvement or distortion, and be not limited only to the described structure of the above-mentioned specific embodiment of the present invention, therefore previously described mode is preferably, and does not have restrictive meaning.
Claims (11)
1. open-hole horizontal well staged fracturing completion integral tubular column system, is characterized in that:
Described integrated pipe column system comprises wellhead assembly (1), throws and catch ball instrument, sleeve pipe (3), tubing string (4) and fracturing strings string; Described wellhead assembly (1) and throwing are caught ball instrument and are arranged on horizontal well head; Described tubing string (4) is arranged in described sleeve pipe (3) and described fracturing strings string is connected with the lower end of described tubing string (4);
Described fracturing strings string is arranged in barefoot interval (9); It comprises suspension tail pipe (7) and at least 10 set of segmentation pressure break composite membeies; Each is organized described staged fracturing composite member and is arranged on described suspension tail pipe (7) along described barefoot interval (9) direction interval; Described in every group, staged fracturing composite member comprises bore hole seal pack device, hydraulic centralizing device and fracturing sliding bush; One end of described suspension tail pipe (7) is connected with described tubing string (4) lower port;
Described integrated pipe column system by hydraulic pressure and pitching to described barefoot interval (9) pressure break step by step, by described wellhead assembly (1) and throwing, catch ball instrument at least 10 set of segmentation pressure break composite membeies are carried out to pressure break, complete that bore hole seal pack device sets, fracturing sliding bush is opened and realize the fracturing reform of each isolated interval and the input of ball and catch recovery.
2. according to the open-hole horizontal well staged fracturing completion integral tubular column system described in claim l, it is characterized in that:
Described fracturing strings string also comprises a pair of bore hole anchoring packer and differential fracturing sliding bush (19); A pair of described bore hole anchoring packer is anchored to described fracturing strings string two ends, and sets between described suspension tail pipe (7) and barefoot interval (9); Described each set of segmentation pressure break composite member is arranged between described a pair of bore hole anchoring packer;
Described differential fracturing sliding bush (19) is arranged on the toe-end of described barefoot interval (9), is arranged in the fracturing section of horizontal well end one-level.
3. open-hole horizontal well staged fracturing completion integral tubular column system according to claim 1 and 2, is characterized in that:
Described fracturing strings string starts to be disposed with described bore hole anchoring packer to toe-end from described barefoot interval (9), the described bore hole anchoring packer of at least 10 set of segmentation pressure break composite membeies and end; Each is organized described staged fracturing composite member and comprises that described bore hole seal pack device, hydraulic centralizing device and pitching can bore fracturing sliding bush; Described hydraulic centralizing device, for righting tubing string, guarantees that tubing string is effectively placed in the middle, improves packer sealing effect; Described in each, pitching can be bored fracturing sliding bush and according to described throwing, caught each size of throwing in ball instrument ball that builds the pressure and open sliding sleeves at different levels.
4. open-hole horizontal well staged fracturing completion integral tubular column system according to claim 2, is characterized in that:
Described differential fracturing sliding bush (19) is double-piston hydraulic switch, comprise pair of pistons, described pair of pistons is compressed spring type piston, described double-piston hydraulic switch is arranged on described suspension tail pipe (7), on described suspension tail pipe (7), sand jet outlet is set, a pair of described piston is symmetricly set on and hangs on tail pipe (7) external surface along pipeline; A pair of described piston is fixed on described suspension tail pipe (7) by shear pin; A pair of described piston is for sand jet outlet described in switch; By giving described suspension tail pipe (7) pressurization, make the inside and outside pressure differential of double-piston hydraulic switch act on mineralization pressure on piston, cut off shear pin, and promote a pair of described piston and move to two ends, when described piston moves to a certain position respectively, described sand jet outlet is opened, and flow channels is opened, the lasting unlatching that keeps passage is fracturing fluid or liquid carrying confession flow channel.
5. according to the open-hole horizontal well staged fracturing completion integral tubular column system described in claim l, it is characterized in that:
Described throwing is caught ball instrument and is comprised ball pitching tool and catch ball instrument, described ball pitching tool is by the gate on described wellhead assembly (1), in fracturing string in ball input well, fracturing liquid in pipeline is sent into ball in the ball seat of fracturing sliding bush, by beating hydraulic way, opens this fracturing sliding bush and carries out pressing crack construction;
The described ball instrument row of returning after pressing crack construction completes of catching, ball in well is discharged ground and is entered ground and return in comb line along with liquid in well returns, at surface line end, connect one section of screen casing with plug, prevent owing to returning discharging liquid pressure high, cause the injury of ball to people and thing of returning out ground with liquid, after the row of returning finishes, described screen casing is disassembled, ball is taken out and reclaimed.
6. according to the open-hole horizontal well staged fracturing completion integral tubular column system described in claim l, it is characterized in that:
Described integrated pipe column system also comprises potted component (5), tail tube hanging packer (6); Described potted component (5) sets at described tubing string (4) and hangs between tail pipe (7); On the length direction of described potted component (5) external surface, be arranged at intervals with at least 20 sealing rings;
Described tail tube hanging packer (6) sets between described suspension tail pipe (7) and sleeve pipe (3).
7. open-hole horizontal well staged fracturing completion integral tubular column system according to claim 1 and 2, is characterized in that:
Described tubular column system also comprises well washing switch (23) and guider with holes (24);
The external surface of described guider with holes (24) is smooth, spherical, and it is arranged on the end port place of described suspension tail pipe (7);
Described well washing switch (23) is arranged on described guider with holes (24) inner side, and be arranged in described suspension tail pipe (7), described well washing switch (23) one end is connected with described fracturing strings string, and the other end is connected with described guider with holes (24).
8. according to the open-hole horizontal well staged fracturing completion integral tubular column system described in claim l, it is characterized in that:
Described tubular column system also comprises casing shoe (8); Described casing shoe (8) is arranged on the lateral wall of described sleeve pipe (3) bottom.
9. according to the process of carrying out pressure break of the integrated pipe column one of claim l～8 Suo Shu, it is characterized in that:
Described process is to described barefoot interval (9) pressure break step by step by hydraulic pressure and pitching, by described wellhead assembly (1) and throwing, catch ball instrument at least 10 set of segmentation pressure break composite membeies are carried out to pressure break, complete that bore hole seal pack device sets, fracturing sliding bush is opened and realize the fracturing reform of each isolated interval and the input of ball and catch the process of recovery.
10. the process of integrated pipe column pressure break according to claim 9, is characterized in that:
The concrete steps of described process are,
Step 1, integral type tubular column system step under open-hole horizontal well:
Step (11) is described sleeve pipe (3) G.I.H, and respectively described sleeve pipe (3) well section and barefoot interval (9) carried out to the processing of drifting pipe cleaning;
Step (12) is lowered into described fracturing strings string in described barefoot interval (9), and opens described well washing switch (23) and carry out well-flushing, until occur without the card phenomenon that is hampered;
Step (13) is inserted described tubing string (4) in described suspension tail pipe (7), and by described potted component (5) sealing, described wellhead assembly (1) and throwing is caught to ball instrument and be arranged on well head place;
Step 2, pressure break step:
Barefoot interval (9) toe-end level-1 area described in step (21) pressure break: fracturing fluid through hydraulic line to described differential fracturing sliding bush (19), utilize hydraulic pressure to cut off a pair of shear pin and promote a pair of described piston and to two ends, move respectively, when a pair of described piston moves to a certain position respectively, sand jet outlet is opened, be that described differential fracturing sliding bush (19) is opened, complete the pressure break work of this section of separated region;
Barefoot interval (9) regions at different levels described in step (22) pressure break: the ball that builds the pressure sets described and bores on ball seat under fracturing fluid drives, piston and can bore ball seat and produce up and down hydraulic pressure, utilize hydraulic pressure and described in the ball that builds the pressure build the pressure and cut off shear pin, and promote described descent of piston and move, thereby make described pitching can bore fracturing sliding bush, open, complete the pressure break work of this section of separated region;
Step (23) is pressure break step by step: according to fracturing sliding bushs at different levels, throw in the ball that builds the pressure of corresponding size, described barefoot interval (9) is carried out to pressure break step by step, repeating said steps (22), returns pressure break in realization piecemeal;
Step 3, pressure break finishes: after pitching pressure break completes, fracturing fluid is returned and drained into ground waste liquid pool or waste liquid tank by described fracturing strings string, described in build the pressure ball with the anti-well head that drains into of the fracturing fluid in well, and by described throwing, catch ball instrument and reclaim;
Step 4, takes out described tubing string (4), retains described tail tube hanging packer (6) and usings lower tubular column string part as completion tubular column, and be lowered to flow string and produce.
The process of 11. integrated pipe column pressure breaks according to claim 10, is characterized in that:
Drifting pipe cleaning is processed its process:
Adopt drift size gauge tool and pipeline scraper to carry out drifting and pipe cleaning processing to described sleeve pipe (3) well section, the wellbore treatments tubing string that adopts former Open-Hole Section size drilling bit and watermelon junk mill to form carries out the processing of drifting pipe cleaning to described barefoot interval (9), and processes to artificial bottom of a well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129579.7A CN104100250A (en) | 2013-04-15 | 2013-04-15 | Integrated pipe column system and fracturing process method for staged fracturing well completion of open hole horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129579.7A CN104100250A (en) | 2013-04-15 | 2013-04-15 | Integrated pipe column system and fracturing process method for staged fracturing well completion of open hole horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104100250A true CN104100250A (en) | 2014-10-15 |
Family
ID=51668754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310129579.7A Pending CN104100250A (en) | 2013-04-15 | 2013-04-15 | Integrated pipe column system and fracturing process method for staged fracturing well completion of open hole horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104100250A (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443099A (en) * | 2015-12-09 | 2016-03-30 | 中国石油化工股份有限公司 | Method for upward movement fracturing of horizontal well of naked eye prefabricated tubing completion |
| CN105525902A (en) * | 2016-01-21 | 2016-04-27 | 中国石油化工股份有限公司 | Horizontal well up-going fracturing method for screen pipe suspension well completion |
| CN106481326A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | The no chock pressure difference fracturing strings of self controllable supercharging |
| CN107304670A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Sectional modification pipe column |
| CN108222911A (en) * | 2017-12-27 | 2018-06-29 | 中国海洋石油集团有限公司 | A kind of horizontal bare hole well volume increase completion tubular column and connection make method |
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Soluble packer multi-layer fracturing well completion integrated partial pressure pipe column and method for gas well |
| CN109267983A (en) * | 2017-07-17 | 2019-01-25 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | Horizontal well refracturing device and method based on the complete well of the preset tubing string of naked eye |
| CN109707358A (en) * | 2017-10-25 | 2019-05-03 | 中海石油(中国)有限公司上海分公司 | Fracturing string and its fracturing process |
| CN109723377A (en) * | 2019-01-15 | 2019-05-07 | 陕西延长石油(集团)有限责任公司研究院 | A kind of window sidetracking well barefoot completion reservoir integration remodeling method |
| CN110249107A (en) * | 2016-12-06 | 2019-09-17 | 沙特阿拉伯石油公司 | Cross the recoverable intelligent completion system of oil pipe |
| CN110308046A (en) * | 2019-05-24 | 2019-10-08 | 北京建筑大学 | Solid&liquid couple analog simulation experimental rig |
| CN110608027A (en) * | 2019-10-12 | 2019-12-24 | 山东科瑞油田服务集团股份有限公司 | Large-scale hydraulic fracturing permeability-increasing pre-gas-pumping treatment process for directional ultra-long drilling of roadway |
| CN110872944A (en) * | 2018-09-04 | 2020-03-10 | 中国石油天然气股份有限公司 | Fracturing string and horizontal well subsection repeated fracturing operation method |
| CN110984924A (en) * | 2019-12-20 | 2020-04-10 | 新疆恒智伟业石油工程技术开发有限公司 | Easy-drilling-and-grinding open hole well completion pipe string construction method |
| CN111411932A (en) * | 2019-01-08 | 2020-07-14 | 中国石油天然气股份有限公司 | Method and device for integrating segmented well completion and transformation of horizontal well |
| CN112431579A (en) * | 2020-08-11 | 2021-03-02 | 中国石油天然气股份有限公司 | Preset small-diameter pipe internal fracturing device and method for side drilling well and small-hole well |
| CN112502682A (en) * | 2020-11-05 | 2021-03-16 | 中国石油天然气股份有限公司 | Production method of preset small-diameter pipe for side drilling well and small-hole well |
| CN112554856A (en) * | 2020-12-01 | 2021-03-26 | 大庆油田有限责任公司 | Pipe post is pressed to successive layer shutoff formula multilayer seat suitable for big liquid measure |
| CN113756774A (en) * | 2020-06-05 | 2021-12-07 | 中国石油化工股份有限公司 | Fracturing and water control integrated pipe column and method for open hole well |
| CN114458209A (en) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | Horizontal well screen pipe detection blockage removal system and method |
| CN115324482A (en) * | 2022-10-13 | 2022-11-11 | 中国煤炭科工集团有限公司 | Coal mine gas deep hole regionalization extraction method and device |
| CN115387771A (en) * | 2022-08-10 | 2022-11-25 | 中煤科工集团西安研究院有限公司 | Underground coal mine staged hydraulic fracturing tool string with rapid plug removal function and method |
| CN117189067A (en) * | 2023-11-07 | 2023-12-08 | 核工业北京化工冶金研究院 | On-site leaching uranium mining test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090223670A1 (en) * | 2008-03-07 | 2009-09-10 | Marathon Oil Company | Systems, assemblies and processes for controlling tools in a well bore |
| CN201593405U (en) * | 2009-11-27 | 2010-09-29 | 中国石油集团长城钻探工程有限公司 | Integrated tubular column for horizontal well completion and fracturing production |
| CN201714364U (en) * | 2010-07-02 | 2011-01-19 | 中国石油集团川庆钻探工程有限公司 | Staged fracturing acidizing tool string for open hole completion of horizontal well |
| CN201723198U (en) * | 2010-07-02 | 2011-01-26 | 中国石油集团川庆钻探工程有限公司 | Double-opening differential pressure sliding sleeve |
| US20110284214A1 (en) * | 2010-05-19 | 2011-11-24 | Ayoub Joseph A | Methods and tools for multiple fracture placement along a wellbore |
| CN102518419A (en) * | 2012-01-06 | 2012-06-27 | 西南石油大学 | High-efficiency fracturing combined device for multi-stage horizontal well |
-
2013
- 2013-04-15 CN CN201310129579.7A patent/CN104100250A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090223670A1 (en) * | 2008-03-07 | 2009-09-10 | Marathon Oil Company | Systems, assemblies and processes for controlling tools in a well bore |
| CN201593405U (en) * | 2009-11-27 | 2010-09-29 | 中国石油集团长城钻探工程有限公司 | Integrated tubular column for horizontal well completion and fracturing production |
| US20110284214A1 (en) * | 2010-05-19 | 2011-11-24 | Ayoub Joseph A | Methods and tools for multiple fracture placement along a wellbore |
| CN201714364U (en) * | 2010-07-02 | 2011-01-19 | 中国石油集团川庆钻探工程有限公司 | Staged fracturing acidizing tool string for open hole completion of horizontal well |
| CN201723198U (en) * | 2010-07-02 | 2011-01-26 | 中国石油集团川庆钻探工程有限公司 | Double-opening differential pressure sliding sleeve |
| CN102518419A (en) * | 2012-01-06 | 2012-06-27 | 西南石油大学 | High-efficiency fracturing combined device for multi-stage horizontal well |
Non-Patent Citations (1)
| Title |
|---|
| 朱正喜等: "水平井裸眼完井分段压裂技术研究", 《石油矿场机械》 * |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481326A (en) * | 2015-09-02 | 2017-03-08 | 中国石油化工股份有限公司 | The no chock pressure difference fracturing strings of self controllable supercharging |
| CN105443099B (en) * | 2015-12-09 | 2017-12-29 | 中国石油化工股份有限公司 | Fracturing process is returned on a kind of preset tubing string completion horizontal well of bore hole |
| CN105443099A (en) * | 2015-12-09 | 2016-03-30 | 中国石油化工股份有限公司 | Method for upward movement fracturing of horizontal well of naked eye prefabricated tubing completion |
| CN105525902B (en) * | 2016-01-21 | 2019-01-22 | 中国石油化工股份有限公司 | Fracturing process is returned on a kind of complete well water horizontal well of suspension screen casing |
| CN105525902A (en) * | 2016-01-21 | 2016-04-27 | 中国石油化工股份有限公司 | Horizontal well up-going fracturing method for screen pipe suspension well completion |
| CN107304670A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Sectional modification pipe column |
| CN110249107A (en) * | 2016-12-06 | 2019-09-17 | 沙特阿拉伯石油公司 | Cross the recoverable intelligent completion system of oil pipe |
| CN109267983A (en) * | 2017-07-17 | 2019-01-25 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | Horizontal well refracturing device and method based on the complete well of the preset tubing string of naked eye |
| CN109707358B (en) * | 2017-10-25 | 2023-09-05 | 中海石油(中国)有限公司上海分公司 | Fracturing string and fracturing method thereof |
| CN109707358A (en) * | 2017-10-25 | 2019-05-03 | 中海石油(中国)有限公司上海分公司 | Fracturing string and its fracturing process |
| CN108222911B (en) * | 2017-12-27 | 2020-03-20 | 中国海洋石油集团有限公司 | Horizontal open hole well production increasing completion pipe string and combined operation method |
| CN108222911A (en) * | 2017-12-27 | 2018-06-29 | 中国海洋石油集团有限公司 | A kind of horizontal bare hole well volume increase completion tubular column and connection make method |
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Soluble packer multi-layer fracturing well completion integrated partial pressure pipe column and method for gas well |
| CN110872944A (en) * | 2018-09-04 | 2020-03-10 | 中国石油天然气股份有限公司 | Fracturing string and horizontal well subsection repeated fracturing operation method |
| CN111411932A (en) * | 2019-01-08 | 2020-07-14 | 中国石油天然气股份有限公司 | Method and device for integrating segmented well completion and transformation of horizontal well |
| CN109723377A (en) * | 2019-01-15 | 2019-05-07 | 陕西延长石油(集团)有限责任公司研究院 | A kind of window sidetracking well barefoot completion reservoir integration remodeling method |
| CN110308046A (en) * | 2019-05-24 | 2019-10-08 | 北京建筑大学 | Solid&liquid couple analog simulation experimental rig |
| CN110608027A (en) * | 2019-10-12 | 2019-12-24 | 山东科瑞油田服务集团股份有限公司 | Large-scale hydraulic fracturing permeability-increasing pre-gas-pumping treatment process for directional ultra-long drilling of roadway |
| CN110984924A (en) * | 2019-12-20 | 2020-04-10 | 新疆恒智伟业石油工程技术开发有限公司 | Easy-drilling-and-grinding open hole well completion pipe string construction method |
| CN113756774A (en) * | 2020-06-05 | 2021-12-07 | 中国石油化工股份有限公司 | Fracturing and water control integrated pipe column and method for open hole well |
| CN112431579A (en) * | 2020-08-11 | 2021-03-02 | 中国石油天然气股份有限公司 | Preset small-diameter pipe internal fracturing device and method for side drilling well and small-hole well |
| CN114458209A (en) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | Horizontal well screen pipe detection blockage removal system and method |
| CN114458209B (en) * | 2020-10-21 | 2024-03-22 | 中国石油化工股份有限公司 | Horizontal well screen pipe detection blocking removal system and method |
| CN112502682B (en) * | 2020-11-05 | 2022-05-10 | 中国石油天然气股份有限公司 | Production method of preset small-diameter pipe for side drilling well and small-hole well |
| CN112502682A (en) * | 2020-11-05 | 2021-03-16 | 中国石油天然气股份有限公司 | Production method of preset small-diameter pipe for side drilling well and small-hole well |
| CN112554856A (en) * | 2020-12-01 | 2021-03-26 | 大庆油田有限责任公司 | Pipe post is pressed to successive layer shutoff formula multilayer seat suitable for big liquid measure |
| CN115387771A (en) * | 2022-08-10 | 2022-11-25 | 中煤科工集团西安研究院有限公司 | Underground coal mine staged hydraulic fracturing tool string with rapid plug removal function and method |
| CN115387771B (en) * | 2022-08-10 | 2023-08-25 | 中煤科工集团西安研究院有限公司 | Coal mine underground segmented hydraulic fracturing tool string with rapid blocking removal function and method |
| CN115324482A (en) * | 2022-10-13 | 2022-11-11 | 中国煤炭科工集团有限公司 | Coal mine gas deep hole regionalization extraction method and device |
| CN115324482B (en) * | 2022-10-13 | 2023-02-24 | 中国煤炭科工集团有限公司 | Coal mine gas deep hole regionalization extraction method and device |
| CN117189067A (en) * | 2023-11-07 | 2023-12-08 | 核工业北京化工冶金研究院 | On-site leaching uranium mining test device |
| CN117189067B (en) * | 2023-11-07 | 2024-02-09 | 核工业北京化工冶金研究院 | On-site leaching uranium mining test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104100250A (en) | Integrated pipe column system and fracturing process method for staged fracturing well completion of open hole horizontal well | |
| US9909400B2 (en) | Gas separator assembly for generating artificial sump inside well casing | |
| US8267173B2 (en) | Open hole completion apparatus and method for use of same | |
| US9784067B2 (en) | Liner cementation process and system | |
| US9670750B2 (en) | Methods of operating well bore stimulation valves | |
| CN106460491B (en) | The method for forming multilateral well | |
| CN106661927B (en) | Junction conveyed completion tool and operation | |
| RU2671369C1 (en) | Drilling with liner using a withdrawable guide assembly of the bottom | |
| US9206678B2 (en) | Zonal contact with cementing and fracture treatment in one trip | |
| CN104204397B (en) | The system and method for pressure break is carried out while drilling well | |
| BR112019012492B1 (en) | METHOD FOR COMPLETING A WELL IN A SINGLE MANEUVER, AND, METHOD AND APPARATUS FOR COMPLETING A SINGLE MANEUVER OF A WELL | |
| CN103452542A (en) | Switchable fracturing sliding sleeve | |
| US20190186240A1 (en) | Tubing Installation Assembly | |
| US9957763B2 (en) | Flow controlled ball release tool | |
| BR112019011958B1 (en) | METHOD FOR COMPLETING A WELL IN A SINGLE MANEUVER AND METHOD FOR COMPLETING A SINGLE MANEUVER OF A WELL IN AN OPEN HOLE | |
| CN103422846B (en) | Open hole horizontal well completion fracturing integrated pipe column | |
| US10465478B2 (en) | Toe valve | |
| CN203420698U (en) | Open hole horizontal well completion fracturing integrated pipe column | |
| US11208869B2 (en) | Static packer plug | |
| AU2018214015B2 (en) | Formation interface assembly (FIA) | |
| US11091981B2 (en) | Completion methodology for unconventional well applications using multiple entry sleeves and biodegradable diverting agents | |
| CN103821471A (en) | Method of processing cement sheath outside screen pipe after cementing well completion | |
| CN211422619U (en) | Double-branch well selective production process pipe column and double-branch well | |
| RU2713819C1 (en) | Bottom-hole fluid flow switch in well for various operating modes (embodiments) | |
| RU2774455C1 (en) | Method for completing a well with a horizontal completion using a production column of one diameter from head to bottomhouse and subsequent carrying out large-volume, speed and multi-stage hydraulic fracturing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141015 |
|
| RJ01 | Rejection of invention patent application after publication |