CN202659146U - Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well - Google Patents

Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well Download PDF

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Publication number
CN202659146U
CN202659146U CN2012202749552U CN201220274955U CN202659146U CN 202659146 U CN202659146 U CN 202659146U CN 2012202749552 U CN2012202749552 U CN 2012202749552U CN 201220274955 U CN201220274955 U CN 201220274955U CN 202659146 U CN202659146 U CN 202659146U
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CN
China
Prior art keywords
drilling
drill pipe
drill
length
horizontal well
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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.)
Expired - Fee Related
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CN2012202749552U
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Chinese (zh)
Inventor
田逢军
谌建齐
杨光
张盘龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changqing Drilling Co of CNPC Chuanqing Drilling Engineering Co Ltd
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Changqing Drilling Co of CNPC Chuanqing Drilling Engineering Co Ltd
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Priority to CN2012202749552U priority Critical patent/CN202659146U/en
Application granted granted Critical
Publication of CN202659146U publication Critical patent/CN202659146U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a double-drilling combined drill structure suitable for drilling operation of an oil well and a horizontal well. The double-drilling combined drill structure is characterized by comprising a first second-spudding straight hole section to medium measurement drill structure and a second medium measurement to finishing drilling drill structure, wherein the first second-drilling straight hole section to medium measurement drill structure is formed by connecting a PDC (Polycrystalline Diamond compact) drill bit, a single bend screw, a screw centralizer, a connecting joint, a non-magnetic drill collar, a first section of heavy weight drill pipe or thick-wall drill pipe and a common drill pipe in sequence; and the second medium measurement to finishing drilling drill structure is formed by connecting a PDC drill bit, a single bend screw, a screw centralizer, a spherical centralizer, a connecting joint, a back pressure valve, a non-magnetic drill collar, a first section of heavy weight drill pipe or thick-wall drill pipe, a common drill pipe, a second section of heavy weight drill pipe or thick-wall drill pipe and a common drill pipe in sequence through threads. The double-drilling combined drill structure disclosed by the utility model has the advantages of reducing the tripping frequency, achieving double-drilling finishing drilling after second spudding, shortening the drilling period, reducing the construction risk and realizing greater breakthrough of an oil well and horizontal well construction technology.

Description

The twice brill way-type drilling unit structure that is fit to oil well horizontal well drillng operation
Technical field
The utility model relates to the drilling tool structure of oil well horizontal well drillng operation, particularly a kind of twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation.Belong to drilling engineering oil well horizontal well drilling well field.
Technical background
Development along with the oil well horizontal well construction, oil well horizontal well drilling technology has obtained very great development, but relatively present technology speed-raising, horizontal well creeps into and exists construction period longer, and work progress makes a trip often, and wherein the drill jig formula is being widelyd popularize in oil field, Jingan County three times, but be subjected to the each side factor affecting, average every mouthful of well makes a trip 4 times, drilling period 20 days, 15 days stub boring well cycles.Every mouthful of well uses drill bit more than 2, uses drill bit many, makes a trip often, and drilling period is long, and the horizontal well construction security risk is large.Bit speed is slow.
Summary of the invention
The purpose of this utility model provides a kind of twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation, and this drilling tool structure reduces the number of times that makes a trip, and reaches two and bores twice finishing drilling after opening, and the cripetura of drilling period was short within 11 days, reduced construction risk.Realize that oil well horizontal well construction technology is than quantum jump.
The purpose of this utility model is achieved in that the twice brill way-type drilling unit structure that is fit to oil well horizontal well drillng operation, it is characterized in that: it comprises that opening the straight well section for first time two surveys to the finishing drilling drilling tool structure in middle survey drilling tool structure and second time, and described to open the straight well section first time two be to be threaded by PDC drill bit, single bend PDM, screw rod centralizer, joint, non magnetic drill collar, first paragraph heavy weight drill pipe or heavy wall drill pipe, common drilling rod successively order to middle survey drilling tool structure; Surveying in described second time to the finishing drilling drilling tool structure is to be threaded by PDC drill bit, single bend PDM, screw rod centralizer, ball-type centralizer, joint, back pressure valve, non magnetic drill collar, first paragraph heavy weight drill pipe or heavy wall drill pipe, common drilling rod, second segment heavy weight drill pipe or heavy wall drill pipe, common drilling rod successively order.
The bit size of described PDC drill bit is: Ф 215.9mm.
Described single bend PDM size is: Ф 172 mm or Ф 165mm, the single bend PDM number of degrees are 1.25 °, and length is 5-9 m.
Described joint is the MWD joint with the wireless drift indicator device, and length is 0.8-0.95m.
Described common drilling rod is of a size of: Ф 127mm, and wall thickness 9.19mm, length is that oil well horizontal well horizontal segment design length adds 300m; The diameter of described first paragraph heavy weight drill pipe or heavy wall drill pipe and second segment heavy weight drill pipe or heavy wall drill pipe is Ф 127mm, wall thickness is 12-15 mm, the length of first paragraph heavy weight drill pipe or heavy wall drill pipe is 70-90m, and the length of second segment heavy weight drill pipe or heavy wall drill pipe is 200-350m.
Described ball-type centralizer is of a size of: Ф 213mm, and length is 0.7-0.9m; The length of described back pressure valve is 0.40-0.6m; Described non magnetic drill collar is of a size of: Ф 165mm, length is 9-10m.
Described PDC drill bit is BEST PDC drill bit, and its model is SM1665SSR; Or hundred million this reach the PDC drill bit, its model is EDM1616EL.
The utility model has the advantages that: at the condition maturity block, the stratum is stable, oil reservoir is stable, distance is greater than 270m before the target, middle drill-hole survey is greater than 45 ° horizontal well, all well sections are Ф 215.9mm well, the tricone bit of the 215.9mm of angle buildup interval drill bit during by original deflecting is changed into direct usefulness two and is opened Ф 215.9mmPDC bit drills and proceed to middle location and put, again, the increasing hole angle section uses a strong gauge PDC bit drills to finishing drilling to brill technology of horizontal segment after the middle survey after the middle survey, reduces because occurring drill bit failures in the drilling process, horizontal well for kill-job is advantageous particularly, the lost cone of need not worrying.The way-type drilling unit structure of boring twice of the present utility model shortens oil well horizontal well drilling period, improves bit speed, simplifies the horizontal well construction process, saves cost.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is described further, but not as to restriction of the present utility model.
Fig. 1 is the structural representation of the utility model embodiment PDC drill bit;
Fig. 2 is that the utility model embodiment opens the straight well section for first time two to middle survey drilling tool structure;
Fig. 3 surveys to the finishing drilling drilling tool structure among the utility model embodiment second time;
Fig. 4 is the actual schematic diagram that creeps into of horizontal well.
Among the figure, 1, the PDC drill bit; 2, single bend PDM; 3, screw rod centralizer; 4, joint; 5, non magnetic drill collar; 6, first paragraph heavy weight drill pipe or heavy wall drill pipe; 7, common drilling rod 8, second segment heavy weight drill pipe or heavy wall drill pipe; 9, ball-type centralizer; 10, back pressure valve; 11, straight well section; 12, the first increasing hole angle section; 13, the second increasing hole angle section; 14, horizontal segment; 15, middle location is put.
The specific embodiment
Embodiment 1
As Figure 1-3: the twice brill way-type drilling unit structure that is fit to oil well horizontal well drillng operation, it comprises that opening the straight well section for first time two surveys to the finishing drilling drilling tool structure in middle survey drilling tool structure and second time, described to open the straight well section first time two be to be threaded by PDC drill bit 1, single bend PDM 2, screw rod centralizer 3, joint 4, non magnetic drill collar 5, first paragraph heavy weight drill pipe or heavy wall drill pipe 6, common drilling rod 7 successively order to middle survey drilling tool structure; Surveying in described second time to the finishing drilling drilling tool structure is to be threaded by PDC drill bit 1, single bend PDM 2, screw rod centralizer 3, ball-type centralizer 9, joint 4, back pressure valve 10, non magnetic drill collar 5, first paragraph heavy weight drill pipe or heavy wall drill pipe 6, common drilling rod 7, second segment heavy weight drill pipe or heavy wall drill pipe 8, common drilling rod 7 successively order.
Embodiment 2
The twice brill way-type drilling unit structure that is fit to oil well horizontal well drillng operation, it comprises that opening the straight well section for first time two surveys to the finishing drilling drilling tool structure in middle survey drilling tool structure and second time, described to open the straight well section first time two be to be threaded by PDC drill bit 1, single bend PDM 2, screw rod centralizer 3, joint 4, non magnetic drill collar 5, first paragraph heavy weight drill pipe or heavy wall drill pipe 6, common drilling rod 7 successively order to middle survey drilling tool structure; Surveying in described second time to the finishing drilling drilling tool structure is to be threaded by PDC drill bit 1, single bend PDM 2, screw rod centralizer 3, ball-type centralizer 9, joint 4, back pressure valve 10, non magnetic drill collar 5, first paragraph heavy weight drill pipe or heavy wall drill pipe 6, common drilling rod 7, second segment heavy weight drill pipe or heavy wall drill pipe 8, common drilling rod 7 successively order.The bit size of described PDC drill bit 1 is: Ф 215.9mm, length does not require that it is SM1665SSR that PDC drill bit 1 can be selected BEST PDC drill bit, its model, or hundred million this reach the PDC drill bit, its model is EDM1616EL; Described single bend PDM 2 sizes are: Ф 172 mm or Ф 165mm, the single bend PDM number of degrees are 1.25 °, and length is 5-9 m.Described joint 4 is the MWD joint with the wireless drift indicator device, and length is 0.8-0.95m.Described common drilling rod 7 is of a size of: Ф 127mm, and wall thickness 9.19mm, length is that oil well horizontal well horizontal segment design length adds 300m; The diameter of described first paragraph heavy weight drill pipe or heavy wall drill pipe 6 and second segment heavy weight drill pipe or heavy wall drill pipe 8 is Ф 127mm, wall thickness is 12-15 mm, the length of first paragraph heavy weight drill pipe or heavy wall drill pipe 6 is 70-90m, and the length of second segment heavy weight drill pipe or heavy wall drill pipe 8 is 200-350m.Described ball-type centralizer 9 is of a size of: Ф 213mm, and length is 0.7-0.9m; The length of described back pressure valve 10 is 0.40-0.6m; Described non magnetic drill collar 5 is of a size of: Ф 165mm, length is 9-10m.
As shown in Figure 4, the actual schematic diagram that creeps into of horizontal well, the drilling well that drilling well is made of straight well section 11, increasing hole angle section and horizontal segment 14, wherein the increasing hole angle section is divided between the first increasing hole angle section 12 and the second increasing hole angle section 13, the two increasing hole angle sections and puts 15 for middle location.
Open for first time two the straight well section survey in middle survey drilling tool structure and second time to the finishing drilling drilling tool structure be two independently structures, when oil well horizontal well drillng operation, use and open the straight well section for first time two and creep into two to middle survey drilling tool structure and open straight well section and deflecting build section, be drilled into electrical measurement position midway; Use to survey in second time to the finishing drilling drilling tool structure and creep into build section and horizontal well after the middle survey, until finishing drilling.
In the oil well horizontal well construction, length according to distance before the target, determine optimizing well body structure and drill bit, grow 6 target zones than good ground for the Ansai block, to before the target apart from greater than 270 horizontal well, rate of increase of angle is less than the horizontal well of 18 °/100m, middle well logging oblique angle is more than 45 °, use the strong gauge PDC drill bit two of Ф 215.9mm to open, guarantee that two reach brill of middle survey realization.
Use above-mentioned drilling assembly after the middle survey, measure the horizontal segment finishing drilling in can realizing and bore for one time.
Horizontal segment compound drilling rate of increase of angle is lower, is conducive to improve rate of penetration, but must use the higher PDC drill bit of gauge degree, and the drill bit of high-wearing feature guarantees that a drill bit has bored horizontal segment one time.More than the horizontal well of growing for horizontal segment especially, 500m, drill bit is preferably particularly important.The at present preferred drill bit Ф 215.9EDM1616SEL of horizontal segment or Ф 215.9SM1665SSR drill bit.
Should note in the construction:
1, to realize that oil well horizontal well two opens rear realization and bore twice, must guarantee employed threaded rod power drill set, enter the well drilling tool and bit life is complementary, can not go wrong in advance.
2, the wireless drift indicator device that enters well must use normally, and other functional performance of the battery of wireless instruments, wireless drift indicator device must be complementary with drill bit.
3, the employed mud property of well must satisfy the instructions for use of PDC drill bit.Cutting carring is normal, downhole safety.
4, oil reservoirs of horizontal well must be stablized.Oil reservoir changes horizontal well greatly, and simultaneously, the stratum is not suitable for that the PDC drill bit creeps into, and is not suitable for boring twice.
5, only have the horizontal well that satisfies above 4 requirements, could realize boring twice.

Claims (7)

1. the twice brill way-type drilling unit structure that is fit to oil well horizontal well drillng operation, it is characterized in that: it comprises that opening the straight well section for first time two surveys to the finishing drilling drilling tool structure in middle survey drilling tool structure and second time, and described to open the straight well section first time two be to be threaded by PDC drill bit (1), single bend PDM (2), screw rod centralizer (3), joint (4), non magnetic drill collar (5), first paragraph heavy weight drill pipe or heavy wall drill pipe (6), common drilling rod (7) successively order to middle survey drilling tool structure; Surveying in described second time to the finishing drilling drilling tool structure is to be threaded by PDC drill bit (1), single bend PDM (2), screw rod centralizer (3), ball-type centralizer (9), joint (4), back pressure valve (10), non magnetic drill collar (5), first paragraph heavy weight drill pipe or heavy wall drill pipe (6), common drilling rod (7), second segment heavy weight drill pipe or heavy wall drill pipe (8), common drilling rod (7) successively order.
2. the twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation according to claim 1, it is characterized in that: the bit size of described PDC drill bit (1) is: Ф 215.9mm.
3. the twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation according to claim 1, it is characterized in that: described single bend PDM (2) size is: Ф 172 mm or Ф 165mm, the single bend PDM number of degrees are 1.25 °, and length is 5-9 m.
4. the twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation according to claim 1 is characterized in that: described joint (4) is the MWD joint with the wireless drift indicator device, and length is 0.8-0.95m.
5. the twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation according to claim 1, it is characterized in that: described common drilling rod (7) is of a size of: Ф 127mm, wall thickness 9.19mm, length is that oil well horizontal well horizontal segment design length adds 300m; The diameter of described first paragraph heavy weight drill pipe or heavy wall drill pipe (6) and second segment heavy weight drill pipe or heavy wall drill pipe (8) is Ф 127mm, wall thickness is 12-15 mm, the length of first paragraph heavy weight drill pipe or heavy wall drill pipe (6) is 70-90m, and the length of second segment heavy weight drill pipe or heavy wall drill pipe (8) is 200-350m.
6. the twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation according to claim 1, it is characterized in that: described ball-type centralizer (9) is of a size of: Ф 213mm, length is 0.7-0.9m; The length of described back pressure valve (10) is 0.40-0.6m; Described non magnetic drill collar (5) is of a size of: Ф 165mm, length is 9-10m.
7. the twice brill way-type drilling unit structure of suitable oil well horizontal well drillng operation according to claim 2, it is characterized in that: described PDC drill bit (1) is BEST PDC drill bit, and its model is SM1665SSR; Or hundred million this reach the PDC drill bit, its model is EDM1616EL.
CN2012202749552U 2012-06-12 2012-06-12 Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well Expired - Fee Related CN202659146U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246104A (en) * 2016-09-27 2016-12-21 中国石油集团川庆钻探工程有限公司 A kind of two boiled water horizontal well construction methods
CN111140173A (en) * 2019-12-30 2020-05-12 中煤科工集团西安研究院有限公司 Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method
CN111287662A (en) * 2020-04-05 2020-06-16 新疆正通石油天然气股份有限公司 Shale stratum drilling open hole drifting method
CN111395975A (en) * 2020-04-16 2020-07-10 中国石油天然气集团有限公司 Two-opening one-trip drilling tool combination suitable for construction of oil well horizontal well and construction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246104A (en) * 2016-09-27 2016-12-21 中国石油集团川庆钻探工程有限公司 A kind of two boiled water horizontal well construction methods
CN106246104B (en) * 2016-09-27 2018-09-07 中国石油集团川庆钻探工程有限公司 A kind of two boiling water horizontal well construction methods
CN111140173A (en) * 2019-12-30 2020-05-12 中煤科工集团西安研究院有限公司 Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method
CN111140173B (en) * 2019-12-30 2021-06-01 中煤科工集团西安研究院有限公司 Horizontal directional core drilling straightening and deviation correcting drilling tool and drilling method
CN111287662A (en) * 2020-04-05 2020-06-16 新疆正通石油天然气股份有限公司 Shale stratum drilling open hole drifting method
CN111395975A (en) * 2020-04-16 2020-07-10 中国石油天然气集团有限公司 Two-opening one-trip drilling tool combination suitable for construction of oil well horizontal well and construction method thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130109

Termination date: 20180612

CF01 Termination of patent right due to non-payment of annual fee