CN104153753A - Horizontal well volume fracturing tubular column and method based on conventional oil tube pressure dragging - Google Patents
Horizontal well volume fracturing tubular column and method based on conventional oil tube pressure dragging Download PDFInfo
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- CN104153753A CN104153753A CN201410423460.5A CN201410423460A CN104153753A CN 104153753 A CN104153753 A CN 104153753A CN 201410423460 A CN201410423460 A CN 201410423460A CN 104153753 A CN104153753 A CN 104153753A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 6
- 239000003978 infusion fluid Substances 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005488 sandblasting Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 238000012856 packing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of ultra-low permeability reservoir reform, and particularly relates to a horizontal well volume fracturing tubular technological column and method based on conventional oil tube pressure dragging. The horizontal well volume fracturing tubular column and method are used for oil horizontal well volume fracturing technology. A conventional oil tube is adopted for conveying, a packer packs a constructed layer, hydraulic sand blasting perforation is carried out through hydraulic sand blasting, a ground annular preventer and a fracturing tree pressure dragging tubular column are combined to achieve oil and gas horizontal well continuous subsection volume fracturing construction, the problems that in an existing volume fracturing construction technological process, tubular column dragging operation can be carried out by releasing formation pressure, construction time is prolonged, and the constriction cost is increased are solved, construction time is shortened, construction efficiency is improved, and the construction cost is reduced.
Description
Technical field
The invention belongs to ultra-low penetration stimulation technology field, for oil well horizontal well volume fracturing technique, be specifically related to a kind of based on conventional oil pipe horizontal well volume fracturing plumber skill post and the fracturing process dragging with pressure.
Background technology
Be accompanied by the further exploitation in oil field, horizontal well volume fracturing process as a kind of efficient reforming mode using the main reforming mode as ultra-low penetration oil reservoir.Volume fracturing technology has the feature of large liquid measure, large discharge capacity, large sand amount, does not reach the requirement of design discharge capacity by infusion in oil pipe, needs in oil pipe and oil jacket annular space injects simultaneously.At present, the construction of some oilfield horizontal well volume fracturings is a large amount of to be adopted " packer packing is every construction layer; hydraulic jet perforation, oil jacket are with note; drag tubing string and realize from bottom to top successively volume fracturing construction ", discharge strata pressure by open flow and just can drag tubing string operation but adopt the method to execute man-hour requirement, extend the engineering time, increase construction cost.
Summary of the invention
The object of the invention is to overcome in existing volume fracturing construction technological process, need to discharge strata pressure by open flow and just can drag tubing string operation, extend the engineering time, increase the problem of construction cost.
For this reason, the invention provides a kind of based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure, comprise oil pipe, on the horizontal segment of oil pipe, being connected with in turn can closing type hydrajet tool, pressure reduction controlled circulation valve, packer and righting-oriented device, and the connected mode between described hydrajet tool, pressure reduction controlled circulation valve, packer and righting-oriented device is screwed connection.
Described hydrajet tool is that mechanical type can be closed waterpower spray gun.
Described packer is mechanical compression type packer.
Described pressure reduction controlled circulation valve comprises top connection, spool and lower contact, and the head of lower contact is sleeved on the afterbody of top connection and fixes by stopping screw;
Spool is positioned at top connection and lower contact inside, and is provided with O RunddichtringO between spool and top connection, lower contact;
The sidewall cross-under of the sidewall of top connection and spool has same shear pin, and the bottom near shear pin on the sidewall of top connection offers through hole.
Described pressure reduction controlled circulation valve is normally close valve.
A fracturing process based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure described above, comprises the steps,
1) under fastening means string, bore:
Fracture well head is installed well head big four, annular preventer from bottom to top successively;
Fastening means string successively, is from bottom to top: righting-oriented device+packer+pressure reduction controlled circulation valve+can close hydrajet tool;
After boring under tool string, the hanger of well head lower flange is connected with oil pipe;
2) set: transfer to design attitude until tool string, set packer, hydrajet tool is opened simultaneously;
3) perforation: inject load fluid in oil pipe, load fluid forms at a high speed and takes sand jet at the nozzle of hydrajet tool, penetrates out sleeve pipe, cementing concrete ring and stratum;
4) pressure break: carry out pressing crack construction to oil pipe and the large discharge capacity injection of oil jacket annular space fracturing fluid;
5) deblocking packer with pressure: after pressing crack construction, close annular preventer, fracture well head and all gates of well head big four, lay down the connecting bolt between fracture well head and annular preventer, by tubing string together with carrying on fracture well head, deblocking packer, closes hydrajet tool;
6) tubing string that drags with pressure: lay down fracture well head, adjust tubing string to next design and construction position;
7) again set: after tubing string is adjusted, fracture well head is connected on tubing string again, then set packer, open hydrajet tool, connect the connecting bolt between fracture well head and annular preventer, open annular preventer;
8) repeat perforation, pressure break: repeating step 3), 4), 5), 6), 7) until all construction locations all pressure break complete.Testing seal about packer failure, pulls out of hole and changes tool string.
After in above-mentioned step 7), packer has set again, to infusion liquid in oil pipe, complete packer is tested to envelope operation by measurement fluid pressure, if testing seal about packer did not lose efficacy, continue next step construction operation, if testing seal about packer lost efficacy, after the replacing tool string that needs to pull out of hole, carry out again construction operation.
In above-mentioned step 3), the nozzle of hydrajet tool forms high speed and takes the opening pressure that the chock pressure difference of sand jet is less than pressure reduction controlled circulation valve.
Beneficial effect of the present invention: of the present invention this based on conventional oil pipe horizontal well volume fracturing plumber skill post and the fracturing process dragging with pressure, adopt conventional tubing transmission, packer packing is every construction layer, carry out hydraulic jet perforation by hydraulic sand blasting, tie surface annular preventer combination fracturing tree belt pressure drags tubing string realization oil, the construction of gas well horizontal well contiguous segmentation volume fracturing, shortening engineering time, raising efficiency of construction, reduction construction cost.
Below with reference to accompanying drawing, the present invention is described in further details.
Brief description of the drawings
Fig. 1 is tubular column structure schematic diagram of the present invention.
Fig. 2 is pressure reduction controlled circulation valve arrangement figure.
Description of reference numerals: 1, fracture well head; 2, annular preventer; 3, well head big four; 4, hydrajet tool; 5, pressure reduction controlled circulation valve; 6, packer; 7, righting-oriented device; 8, oil pipe; 9, oil jacket annular space; 10, top connection; 11, spool; 12, lower contact; 13, stopping screw; 14, shear pin; 15, through hole.
Detailed description of the invention
In order to overcome in existing volume fracturing construction technological process, can drag tubing string operation just need to discharge strata pressure by open flow, extend the engineering time, increase the problem of construction cost.It is a kind of based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure that the present embodiment provides, as shown in Figure 1, comprise oil pipe 8, on the horizontal segment of oil pipe 8, being connected with in turn can closing type hydrajet tool 4, pressure reduction controlled circulation valve 5, packer 6 and righting-oriented device 7, connected mode between described hydrajet tool 4, pressure reduction controlled circulation valve 5, packer 6 and righting-oriented device 7 is screwed connection, hydrajet tool 4 can be closed waterpower spray gun for mechanical type, and packer 6 is mechanical compression type packer.
Can close waterpower spray gun, mechanical compression type packer is applied very extensive in oil field hydraulic jet perforation, here its structure is not particularly limited and is illustrated, routine can be closed waterpower spray gun, mechanical compression type packer and can meet the requirement of this tool string.
The tubular column structure of this structure, will jointly drag with fracture well head 1 when pressing crack construction, and use under the cooperation of annular preventer 2, realize with pressure dragging, avoid open flow to discharge strata pressure and just can drag tubing string operation, saved the time, reduced construction cost.
Pressure reduction controlled circulation valve 5 is normally close valve, as shown in Figure 2, comprises top connection 10, spool 11 and lower contact 12, and the head of lower contact 12 is sleeved on the afterbody of top connection 10 fixing by stopping screw 13; Spool 11 is positioned at top connection 10 and lower contact 12 inside, and is provided with O RunddichtringO between spool 11 and top connection 10, lower contact 12; The sidewall cross-under of the sidewall of top connection 10 and spool 11 has same shear pin 14, and the bottom near shear pin 14 on the sidewall of top connection 10 offers through hole 15.
For pressure reduction controlled circulation valve 5, being mainly used in packer 6 in work progress lost efficacy, to such an extent as to spray gun uses when cannot normally opening abrasive perforating, conventional time, it is normally off, when tubing string internal pressure is during higher than tubing string external pressure, with reference to Fig. 2, internal high pressure produces downward hydraulic action to spool 11, this hydraulic action is cut off shear pin 14, spool 11 moves down, now the inside and outside liquid of tubing string can be linked up by top connection 10 through hole 15 above, and then can realize the inside and outside circulation of tubing string, and safety pulls out of hole and changes drilling tool.
A fracturing process based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure described above, comprises the steps,
1) under fastening means string, bore:
Fracture well head 1 is installed well head big four 3, annular preventer 2 from bottom to top successively;
Fastening means string successively, is from bottom to top: righting-oriented device 7+ packer 6+ pressure reduction controlled circulation valve 5+ can close hydrajet tool 4;
After boring under tool string, the hanger of well head lower flange is connected with oil pipe.
2) set: transfer to design attitude until tool string, by put-on and delegated tubing string, packer 6 is selected mechanical compression type packer here, the slips anchoring of mechanical compression type packer is on internal surface of sleeve pipe, apply the packing element of certain the pressure of the drill compression packer 6, set packer 6, packer 6 tubing string in setting is subject to axial compressive force, hydrajet tool 4(selects mechanical type can close waterpower spray gun here) compress in the effect of this axial compressive force, open nozzle fluid hole, the inside and outside nozzle by hydrajet tool of tubing string is communicated with;
3) perforation: to the interior infusion load fluid of oil pipe 8, load fluid stream forms at a high speed and takes sand jet at the nozzle of spray gun, penetrates out sleeve pipe, cementing concrete ring and stratum.When hydraulic jet perforation, the chock pressure difference that liquid stream produces while flowing through nozzle is less than the opening pressure of pressure reduction controlled circulation valve 5, now pressure reduction circulating valve 5 fluid closed conditions;
4) pressure break: after perforation finishes, to the interior infusion liquid of oil pipe 8, force stratum crack initiation, after the crack initiation of stratum, carry out pressing crack construction with the large discharge capacity injection of oil jacket annular space 9 fracturing fluid in oil pipe 8;
5) deblocking packer with pressure: after pressing crack construction, close annular preventer 2, fracture well head 1 and all gates of well head big four 3, lay down the connecting bolt between fracture well head 1 and annular preventer 2, by tubing string together with carrying on fracture well head 1, deblocking packer 6, closes hydrajet tool 4; Now as follows with the well control state of oil jacket annular space in oil pipe: annular preventer 2 Seal Oil cover annular spaces 9, and can realize 9 movable sealings of oil jacket annular space.Derrick traveling system is together with carrying on tubing string in well, now due to fracture well head 1 connected pipes 8, fluid course in oil pipe 8 is by the gate combined closing of fracture well head 2, now the stream of the liquid in tubing string can not flow out, in the time that fracture well head 1 is carried on tubing string in together with well, the tubing string axial compressive force that packer 6 applies in the time setting disappears, simultaneously spray gun again cuts out under the effect of self back-moving spring, close oil, cover liquid stream interface channel, now the liquid in oil jacket annular space 9 can not enter oil pipe 8 inside.In the time above carrying to certain altitude (being greater than the deblocking height of packer 6), packer 6 deblockings, transfer the flange face of well head to annular preventer 2, now can open the gate of fracture well head 1, if lost returns liquid in oil pipe, illustrate that down-hole mechanical can close spray gun and close.Now can unload well head, with pressure dragging moved tubing string operation.
Because conventional oil pipe is rising, tubing string has the action of transferring when lower brills, the unlatching compressive force that machinery can closing type spray gun is much larger than the frictional force of mechanical compression type packer and casing wall, and in moving tubing string, waterpower spray gun can not be opened.
6) tubing string that drags with pressure: do not have at the moment well control risk with oil jacket annular space 9 in oil pipe 8, now can carry out the tubing string operation that drags with pressure, adjust tubing string to next design and construction position;
7) again set: after tubing string is adjusted, well mouth oil pipe 8 is connected to fracture well head 1(fracture well head 1 all closing gates again), by put-on and delegated tubing string set packer 6, packer 6 machinery in setting can be opened by closing type spray gun, connect the connecting bolt of fracture well head and annular preventer, open annular preventer 2;
8) repeat perforation, pressure break: repeating step 3), 4), 5), 6), 7) until all construction locations all pressure break complete.Testing seal about packer failure, pulls out of hole and changes tool string.
After in above-mentioned step 7), packer 6 has set again, to the interior infusion liquid of oil pipe 8, complete packer 6 is tested to envelope operation by measurement fluid pressure, if testing seal about packer did not lose efficacy, continue next step construction operation, if testing seal about packer lost efficacy, after the replacing tool string that needs to pull out of hole, carry out again construction operation.
In tool string, be connected with pressure reduction controlled circulation valve 5, when mechanical compression type packer slip mechanism lost efficacy, be that tubing string is can not grappling time, now tubing string does not have the strong point to compress tubing string as fulcrum, and then machinery can cannot open by closing type spray gun, tubing string is inside and outside carries out open flow or circulation kill-job in oil pipe without interface channel, and now lift pipe string exists risk.Now in oil pipe, suppress high pressure, starting differential pressure controlled circulation valve 5, open flow in circulate kill-job or tubing string, pulls out of hole and changes drilling tool.
This fracturing string of the present invention and fracturing process, adopt conventional tubing transmission, packer packing is every construction layer, carry out hydraulic jet perforation by hydraulic sand blasting, tie surface annular preventer combination fracturing tree belt pressure drags tubing string realization oil, the construction of gas well horizontal well contiguous segmentation volume fracturing, shortening engineering time, raising efficiency of construction, reduction construction cost.
More than exemplifying is only to illustrate of the present invention, does not form the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention all belongs to protection scope of the present invention.
Claims (8)
1. based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure, comprise oil pipe (8), it is characterized in that: on the horizontal segment of oil pipe (8), being connected with in turn can closing type hydrajet tool (4), pressure reduction controlled circulation valve (5), packer (6) and righting-oriented device (7), and the connected mode between described hydrajet tool (4), pressure reduction controlled circulation valve (5), packer (6) and righting-oriented device (7) is screwed connection.
2. as claimed in claim 1 based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure, it is characterized in that: described hydrajet tool (4) can be closed waterpower spray gun for mechanical type.
3. as claimed in claim 1 based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure, it is characterized in that: described packer (6) is mechanical compression type packer.
4. as claimed in claim 1 based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure, it is characterized in that: described pressure reduction controlled circulation valve (5) comprises top connection (10), spool (11) and lower contact (12), the head of lower contact (12) is sleeved on the afterbody of top connection (10) fixing by stopping screw (13);
Spool (11) is positioned at top connection (10) and lower contact (12) inside, and spool (11) and top connection (10), lower contact are provided with O RunddichtringO between (12);
The sidewall cross-under of the sidewall of top connection (10) and spool (11) has same shear pin (14), and the bottom near shear pin (14) on the sidewall of top connection (10) offers through hole (15).
5. as claimed in claim 4 based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure, it is characterized in that: described pressure reduction controlled circulation valve (5) is normally close valve.
6. the fracturing process based on the conventional oil pipe horizontal well volume fracturing tubing string dragging with pressure as described in any one claim in claim 1 ~ 5, is characterized in that: comprises the steps,
1) under fastening means string, bore:
Fracture well head (1) is installed well head big four (3), annular preventer (2) from bottom to top successively;
Fastening means string successively, is from bottom to top: righting-oriented device (7)+packer (6)+pressure reduction controlled circulation valve (5)+can close hydrajet tool (4);
After boring under tool string, the hanger of well head lower flange is connected with oil pipe.
2) set: set packer (6), in packer setting, hydrajet tool (4) is opened under the compression force of tubing string;
3) perforation: inject load fluid in oil pipe (8), load fluid forms at a high speed and takes sand jet at the nozzle of hydrajet tool (4), penetrates out sleeve pipe, cementing concrete ring and stratum;
4) pressure break: carry out pressing crack construction to oil pipe (8) and the large discharge capacity injection of oil jacket annular space (9) fracturing fluid;
5) deblocking packer with pressure: after pressing crack construction, close annular preventer (2), fracture well head (1) and all gates of well head big four (3), lay down the connecting bolt between fracture well head (1) and annular preventer (2), by tubing string together with carrying on fracture well head (1), deblocking packer (6), closes hydrajet tool (4);
6) tubing string that drags with pressure: lay down fracture well head (1), adjust tubing string to next design and construction position;
7) again set: after tubing string is adjusted, fracture well head (1) is connected on tubing string again, then set packer (6), hydrajet tool (4) opened, connect the connecting bolt between fracture well head (1) and annular preventer (2), open annular preventer (2);
8) repeat perforation, pressure break: repeating step 3), 4), 5), 6), 7) until all construction locations all pressure break complete; Testing seal about packer failure, pulls out of hole and changes tool string.
7. fracturing process as claimed in claim 4, it is characterized in that: after packer in described step 7) (6) has set again, to the interior infusion liquid of oil pipe (8), complete packer (6) is tested to envelope operation by measurement fluid pressure, if testing seal about packer did not lose efficacy, continue next step construction operation, if testing seal about packer lost efficacy, after the replacing tool string that needs to pull out of hole, carry out again construction operation.
8. fracturing process as claimed in claim 4, is characterized in that: the nozzle of hydrajet tool in described step 3) (4) forms high speed and takes the opening pressure that the chock pressure difference of sand jet is less than pressure reduction controlled circulation valve (5).
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564001A (en) * | 2014-12-03 | 2015-04-29 | 中国石油化工股份有限公司 | Horizontal well multi-cluster fracturing method and multi-cluster perforating and fracturing pipe column for implementing method |
| CN105178934A (en) * | 2015-09-24 | 2015-12-23 | 中国石油天然气股份有限公司 | Horizontal well throttling-free straddle type double-seal single-clamp fracturing process |
| 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 |
| CN106014370A (en) * | 2016-07-13 | 2016-10-12 | 北京龙恒业石油工程技术有限公司 | Oil-pipe under-pressure dragging fracturing device and technology |
| CN106529074A (en) * | 2016-11-28 | 2017-03-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hydraulic sandblasting fixed-point perforation mechanical parameter calculation model and application method |
| US9683424B2 (en) | 2015-02-06 | 2017-06-20 | Comitt Well Solutions Us Holding Inc. | Apparatus for injecting a fluid into a geological formation |
| CN111305787A (en) * | 2018-12-11 | 2020-06-19 | 中国石油化工股份有限公司 | Well completion method for carbonate reservoir ultra-deep horizontal well |
| CN111456691A (en) * | 2020-05-27 | 2020-07-28 | 中国石油天然气集团有限公司 | Method and device for single-section double-cluster continuous oil pipe bottom seal dragging fracturing |
| CN113530512A (en) * | 2020-04-22 | 2021-10-22 | 中国石油天然气股份有限公司 | Fracturing string and fracturing method |
| CN116146126A (en) * | 2021-11-19 | 2023-05-23 | 中国石油天然气股份有限公司 | Double-seal single-clamping-belt-pressure continuous-dragging horizontal well volume repeated fracturing transformation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691493A (en) * | 2012-06-05 | 2012-09-26 | 中国石油化工股份有限公司 | Continuous oil pipe sectional sand-blasting perforation casing fracturing pipe column and casing fracturing method |
| CN202628046U (en) * | 2012-06-05 | 2012-12-26 | 中国石油化工股份有限公司 | Sectional sand blasting perforation sleeve fracturing string of continuous oil tube |
| CN103470239A (en) * | 2013-08-20 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Pressurized-dragging continuous fracturing process |
| CN103470242A (en) * | 2013-09-14 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oilfield horizontal well volume fracturing method |
| US20140102708A1 (en) * | 2012-03-08 | 2014-04-17 | Petrowell Limited | Selective Fracturing System |
| CN103982159A (en) * | 2014-06-04 | 2014-08-13 | 安东石油技术（集团）有限公司 | Reverse circulation valve with ball capable of being thrown |
| CN204082115U (en) * | 2014-08-26 | 2015-01-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Based on the horizontal well volume fracturing tubing string of conventional oil pipe dragging with pressure |
-
2014
- 2014-08-26 CN CN201410423460.5A patent/CN104153753B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140102708A1 (en) * | 2012-03-08 | 2014-04-17 | Petrowell Limited | Selective Fracturing System |
| CN102691493A (en) * | 2012-06-05 | 2012-09-26 | 中国石油化工股份有限公司 | Continuous oil pipe sectional sand-blasting perforation casing fracturing pipe column and casing fracturing method |
| CN202628046U (en) * | 2012-06-05 | 2012-12-26 | 中国石油化工股份有限公司 | Sectional sand blasting perforation sleeve fracturing string of continuous oil tube |
| CN103470239A (en) * | 2013-08-20 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Pressurized-dragging continuous fracturing process |
| CN103470242A (en) * | 2013-09-14 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oilfield horizontal well volume fracturing method |
| CN103982159A (en) * | 2014-06-04 | 2014-08-13 | 安东石油技术（集团）有限公司 | Reverse circulation valve with ball capable of being thrown |
| CN204082115U (en) * | 2014-08-26 | 2015-01-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Based on the horizontal well volume fracturing tubing string of conventional oil pipe dragging with pressure |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564001A (en) * | 2014-12-03 | 2015-04-29 | 中国石油化工股份有限公司 | Horizontal well multi-cluster fracturing method and multi-cluster perforating and fracturing pipe column for implementing method |
| US9683424B2 (en) | 2015-02-06 | 2017-06-20 | Comitt Well Solutions Us Holding Inc. | Apparatus for injecting a fluid into a geological formation |
| CN105178934A (en) * | 2015-09-24 | 2015-12-23 | 中国石油天然气股份有限公司 | Horizontal well throttling-free straddle type double-seal single-clamp fracturing process |
| 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 |
| 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 |
| CN106014370A (en) * | 2016-07-13 | 2016-10-12 | 北京龙恒业石油工程技术有限公司 | Oil-pipe under-pressure dragging fracturing device and technology |
| CN106529074A (en) * | 2016-11-28 | 2017-03-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hydraulic sandblasting fixed-point perforation mechanical parameter calculation model and application method |
| CN106529074B (en) * | 2016-11-28 | 2019-09-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of hydraulic sand blasting fixed point perforation mechanics parameter computation model and application method |
| CN111305787A (en) * | 2018-12-11 | 2020-06-19 | 中国石油化工股份有限公司 | Well completion method for carbonate reservoir ultra-deep horizontal well |
| CN113530512A (en) * | 2020-04-22 | 2021-10-22 | 中国石油天然气股份有限公司 | Fracturing string and fracturing method |
| CN111456691A (en) * | 2020-05-27 | 2020-07-28 | 中国石油天然气集团有限公司 | Method and device for single-section double-cluster continuous oil pipe bottom seal dragging fracturing |
| CN116146126A (en) * | 2021-11-19 | 2023-05-23 | 中国石油天然气股份有限公司 | Double-seal single-clamping-belt-pressure continuous-dragging horizontal well volume repeated fracturing transformation method |
| CN116146126B (en) * | 2021-11-19 | 2024-05-24 | 中国石油天然气股份有限公司 | Double-seal single-clamping-belt-pressure continuous-dragging horizontal well volume repeated fracturing transformation method |
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