CN203430501U - Combined drilling tool capable of measuring inclination through opened hole - Google Patents

Combined drilling tool capable of measuring inclination through opened hole Download PDF

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Publication number
CN203430501U
CN203430501U CN201320507949.1U CN201320507949U CN203430501U CN 203430501 U CN203430501 U CN 203430501U CN 201320507949 U CN201320507949 U CN 201320507949U CN 203430501 U CN203430501 U CN 203430501U
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CN
China
Prior art keywords
drill collar
float valve
reaming hole
drill
drilling tool
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.)
Expired - Fee Related
Application number
CN201320507949.1U
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Chinese (zh)
Inventor
付建民
范白涛
邓建明
马英文
刘小刚
陈爱国
韩雪银
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.)
China National Offshore Oil Corp CNOOC
CNOOC China Co Ltd Tianjin Branch
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC China Co Ltd Tianjin Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Offshore Oil Corp CNOOC, CNOOC China Co Ltd Tianjin Branch filed Critical China National Offshore Oil Corp CNOOC
Priority to CN201320507949.1U priority Critical patent/CN203430501U/en
Application granted granted Critical
Publication of CN203430501U publication Critical patent/CN203430501U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A combined drilling tool capable of measuring the inclination through an opened hole is provided with a plurality of heavy weight drill pipes, a hole opener, a jar knocker, drill collars, a float valve, a centralizer, an inclination measuring instrument and an adapter, wherein the heavy weight drill pipes, the jar knocker, one of the drill collars, the inclination measuring instrument, another one of the drill collars, the hole opener, the adapter, another one of the drill collars, the float valve, the centralizer and the other drill collar are sequentially connected into a whole to form the integrated drilling tool capable of measuring the inclination through the opened hole. By means of the combined drilling tool, not only can hole opening be conducted on a drilled well with a kick-off section on the surface layer, but also inclination direction data of the drilled well can be monitored in real time. Technological guarantees are provided for successful implementation that a single-cylinder dual-shaft type drilled well is inclined in advance. Meanwhile, the construction process is simplified, and operating efficiency is improved.

Description

The way-type drilling unit of reaming hole deviational survey
Technical field
The utility model relates to drilling tool, relates in particular to a kind of for the drilling well of shallow-layer inclination section being carried out to the way-type drilling unit of reaming hole deviational survey.Belong to Offshore Engineering field.
Background technology
Monotubular twin-well formula drillng operation is a kind of new-type operational method of marine drilling, it can complete the job task of two mouthfuls of wells from single notch, has not only solved the problem of platform notch deficiency, simultaneously, can reduce the size of offshore platform, and then save the cost of marine petroleum development.
But because existing monotubular twin-well drilling tool is to creep into function and reaming hole function is integrated in one, its rigidity is stronger, lack drilling tool flexibility, cannot carry out reaming hole operation to the well of preemphasis, therefore, existing monotubular twin-well formula drillng operation method, is used for the drilling well that top layer is straight well section.Secondly, in order to meet well track needs and to reduce the risk that sleeve pipe resistance is hung, generally will under the top layer of monotubular twin-well formula drilling well, be deep to 200~250m scope, but the bearing capacity on this degree of depth top layer is lower.
In order to improve top layer bearing capacity, reduce well control risk, this just must further increase the surface pipe depth of setting of monotubular twin-well formula drilling well; So, cannot meet again the needs to the inadequate natural endowment of preemphasis well reaming hole and well track deflecting, therefore, become the biggest obstacle of well control and job safety, thereby cause the conventional monotubular twin-well operational method can only be for conventional shallow well.This is by the extensive use of restriction monotubular twin-well technology.
And existing well drilling tool, its structure comprises: drill bit, reamer, float valve, drill collar, centralizer, drill collar, bumper jar, several heavy weight drill pipe; Wherein, drill bit, reamer, float valve, drill collar, centralizer, drill collar, bumper jar, heavy weight drill pipe connect as one successively, structure drilling tool in aggregates.
Because above-mentioned existing drilling tool is to creep into function and reaming hole function is integrated in one, its rigidity is strong, lack the required flexibility of preemphasis well reaming hole,, also do not have with the ability of boring deviational survey meanwhile.Therefore, cause this drilling tool only to can be used for the operation of creeping into of straight well section, and can not be for the operation of creeping into of angle buildup interval.Present patent application proposes just under this background.
Utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that prior art exists, and provide a kind of way-type drilling unit of reaming hole deviational survey, reaming hole is carried out in its drilling well that can be not only angle buildup interval to top layer, and, gradient bearing data Real-Time Monitoring that can also be to drilling well; Successful implementation for the drilling well of monotubular twin-well formula, provides technical guarantee.
The purpose of this utility model is realized by following technical scheme:
A kind of way-type drilling unit of reaming hole deviational survey, be provided with several heavy weight drill pipes, reamer, bumper jar, drill collar, float valve, centralizer, it is characterized in that: be also provided with inclinometer, variable buckle, wherein, several heavy weight drill pipes, bumper jar, drill collar, inclinometer, drill collar, reamer, variable buckle, drill collar, float valve, centralizer, drill collar connect as one successively, structure reaming hole deviational survey in aggregates drilling tool.
Described float valve is the interior float valve with float valve core; The diameter of float valve is: Φ 203.2mm; Length is 0.5m.
Described drill collar is: non-magnetic drill collar and have magnetic drill collar.
The length of described inclinometer exists: 8.0-9.5m scope.
The diameter of described centralizer is: Φ 425.45mm; Length exists: 1.0-2.0m.
The length of described variable buckle is: 0.5m.
The diameter of described reamer is: Φ 762mm; Length is: 1.5m.
The length of described bumper jar: in 8.0-10.5m scope.
The beneficial effects of the utility model: the utility model is owing to adopting technique scheme, and reaming hole is carried out in its drilling well that can be not only angle buildup interval to top layer, and, direction of deflection data Real-Time Monitoring that can also be to drilling well; Successful implementation for the drilling well of monotubular twin-well formula, provides technical guarantee; Meanwhile, simplify construction sequence, improved operating efficiency.
Accompanying drawing explanation:
Fig. 1 is the utility model overall structure cross-sectional schematic.
Fig. 2 is the utility model overall structure profile schematic diagram.
Fig. 3 is the utility model heavy weight drill pipe cross-sectional schematic.
Fig. 4 is the utility model drill collar cross-sectional schematic.
Fig. 5 is the utility model bumper jar cross-sectional schematic.
Fig. 6 is the utility model inclinometer cross-sectional schematic.
Fig. 7 is the utility model reamer cross-sectional schematic.
Fig. 8 is the utility model centralizer cross-sectional schematic.
Fig. 9 is the utility model float valve cross-sectional schematic.
Major label description in figure:
1. heavy weight drill pipe; 2. heavy weight drill pipe; 3. bumper jar; 4. drill collar; 5. inclinometer; 6. drill collar; 7. reamer; 8. variable buckle; 9. drill collar; 10. float valve; 11. centralizers; 12. stub borings quickly.
The specific embodiment
As Fig. 1, shown in Fig. 2, the utility model mainly comprises: several heavy weight drill pipes (1,2), bumper jar 3, several drill collar (4,6) inclinometer 5, reamer 7, variable buckle 8, drill collar 9, float valve 10, centralizer 11, stub boring quickly 12, wherein, and several heavy weight drill pipes (1,2), bumper jar 3, drill collar 4, inclinometer 5, drill collar 6, reamer 7, variable buckle 8, drill collar 9, float valve 10, centralizer 11, stub boring quickly 12 connect as one successively, structure reaming hole deviational survey in aggregates drilling tool.
The present embodiment: heavy weight drill pipe (1,2) is 14 according to actual needs, and the integral body that is in series successively; Float valve 10 is the interior float valve with float valve core; Several drill collars comprise: non-magnetic drill collar and have magnetic drill collar; Bumper jar 3, inclinometer 5, reamer 7, centralizer 11 each 1.In the present embodiment, the assembling sequence of all parts is: from bottom to top: the stub boring of Φ 203.2mm quickly, its length: in 2.0-3.5m scope, top button-type is 630; The diameter of centralizer is: Φ 425.45mm: its length exists: 1.0-2.0m, and two ends button-type is: 631*630; The diameter of float valve is: Φ 203.2mm, and interior band float valve core, its length is 0.5m, two ends button-type 631*630; Φ 203.2mm drill collar: its length is: 8.0-9.5m scope, two ends button-type: 631*630; The length of variable buckle is: 0.5m, two ends button-type 631*630: Φ 762mm reamer: its length is: 1.5m, two ends button-type 631*630; The non-magnetic drill collar of Φ 203.2mm: its length: in 8.0-9.5m scope, two ends button-type 631*630; Φ 203.2mm exists with the length of the inclinometer boring: 8.0-9.5m scope, two ends button-type 631*630; The length of the short non-magnetic drill collar of Φ 203.2mm: at 4.0-6.5m, two ends button-type 631*630; The length of Φ 203.2mm bumper jar: in 8.0-10.5m scope, two ends button-type 631*630; The joint length of Φ 127mm heavy weight drill pipe: in 9.0-9.5m scope, two ends button-type 631*630.Wherein, above-mentioned button-type is oil drilling industry standard specification button-type; Between each parts, rely on screwed connection, according to detaining on petroleum industry required standard moment of torsion.
When the utility model is used, adopt following reaming hole step:
The first step, is arranged on rig by the utility model and inserts well, and startup rig carries out reaming hole and creeps into; In the process of creeping at reaming hole, carry out discontinuity deviational survey, to contrast the real data of boring of preemphasis;
Second step, reaming hole, behind shaft bottom, is proceeded circulation, until institute expands in well totally;
The 3rd step, proceeds circulation, in order to sweep thick slurry and cleaning well;
The 4th step, after short, more lower boring, proceeds circulation, until institute expands in well totally; Well makes the full thick slurry of pad in pit shaft.
Advantage of the present utility model is as follows:
The first, the utility model, by the quickly measures such as 12 of reasonable arrangement drilling tool order, creative use stub boring, significantly reduces the integral rigidity of reaming hole deviational survey drilling tool, has reduced the attack of drilling tool itself, has reduced the probability that gets out new well; Meanwhile, increase the effect of drilling tool bottom-boot, promoted centralizer of the present utility model, make the utility model enter smoothly the old well of preemphasis, so that carry out subsequent job.
The second, the utility model, owing to using Φ 762mm large scale reamer 7, when the utility model bottom enters after former well smoothly, starts to carry out reaming hole operation, and borehole size is extended to Φ 762mm by Φ 444.5mm.Therefore, correctly selecting of large scale reamer 7, is the guarantee that in same pit shaft, two sleeve pipes are lowered to smoothly.
The 3rd, the utility model, due on centralizer, has been used 1 Φ 203.2mm drill collar, and it is close with preemphasis drilling tool rigidity that this measure is intended to keep, and makes the transition of rigidity nature, is difficult for producing new well; Meanwhile, the length of reamer below 7 is suitable with the difference of long tubing depth and the short sleeve degree of depth, and a direct reaming hole puts in place, reduces by a reaming hole operation.
Four, the utility model, owing to adding with inclinometer 5, utilizes directional tool device Real-Time Monitoring track, so that when reaming hole operation, understand down-hole situation and reaming hole track, to carry out in time angle adjustment.
Above-mentioned heavy weight drill pipe; Bumper jar; Drill collar; Inclinometer; Reamer; Variable buckle; Float valve; Centralizer; Stub boring is quickly prior art.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.

Claims (8)

1. the way-type drilling unit of a reaming hole deviational survey, be provided with several heavy weight drill pipes, reamer, bumper jar, drill collar, float valve, centralizer, it is characterized in that: be also provided with inclinometer, variable buckle, wherein, several heavy weight drill pipes, bumper jar, drill collar, inclinometer, drill collar, reamer, variable buckle, drill collar, float valve, centralizer, drill collar connect as one successively, structure reaming hole deviational survey in aggregates drilling tool.
2. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: described float valve is the interior float valve with float valve core; The diameter of float valve is: Φ 203.2mm; Length is 0.5m.
3. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: described drill collar is: non-magnetic drill collar and have magnetic drill collar.
4. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: the length of described inclinometer exists: 8.0-9.5m scope.
5. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: the diameter of described centralizer is: Φ 425.45mm; Length exists: 1.0-2.0m.
6. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: the length of described variable buckle is: 0.5m.
7. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: the diameter of described reamer is: Φ 762mm; Length is: 1.5m.
8. the way-type drilling unit of reaming hole deviational survey according to claim 1, is characterized in that: the length of described bumper jar: in 8.0-10.5m scope.
CN201320507949.1U 2013-08-20 2013-08-20 Combined drilling tool capable of measuring inclination through opened hole Expired - Fee Related CN203430501U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320507949.1U CN203430501U (en) 2013-08-20 2013-08-20 Combined drilling tool capable of measuring inclination through opened hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320507949.1U CN203430501U (en) 2013-08-20 2013-08-20 Combined drilling tool capable of measuring inclination through opened hole

Publications (1)

Publication Number Publication Date
CN203430501U true CN203430501U (en) 2014-02-12

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ID=50059546

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320507949.1U Expired - Fee Related CN203430501U (en) 2013-08-20 2013-08-20 Combined drilling tool capable of measuring inclination through opened hole

Country Status (1)

Country Link
CN (1) CN203430501U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410446A (en) * 2013-08-20 2013-11-27 中国海洋石油总公司 Reaming inclinometry way-type drilling unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410446A (en) * 2013-08-20 2013-11-27 中国海洋石油总公司 Reaming inclinometry way-type drilling unit

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140212

Termination date: 20170820