CN109826577A - Sea area rapid drilling tool and method - Google Patents
Sea area rapid drilling tool and method Download PDFInfo
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- CN109826577A CN109826577A CN201910260959.1A CN201910260959A CN109826577A CN 109826577 A CN109826577 A CN 109826577A CN 201910260959 A CN201910260959 A CN 201910260959A CN 109826577 A CN109826577 A CN 109826577A
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- drilling
- coring
- inner tube
- assembly
- core
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Abstract
The invention discloses a sea area rapid drilling tool and a method, wherein the tool comprises the following components: the cable core-taking device comprises a cable core-taking outer tube assembly and a cable core-taking inner tube assembly, wherein the cable core-taking outer tube assembly comprises a joint, an outer tube and a drill bit, the cable core-taking inner tube assembly comprises a first type inner tube and a second type inner tube, the first type inner tube comprises a core-supplementing rod assembly and a core-supplementing drill bit, and the second type inner tube comprises a core-taking rod assembly and a core-taking barrel. After the assembly of the rope coring outer pipe assembly is completed, the rope coring outer pipe assembly is put into a well; directly throwing the first type of inner pipe into the rope coring outer pipe assembly at a position where coring is not needed during drilling, and implementing comprehensive drilling; and in the drilling process needing coring, the core supplementing rod assembly and the core supplementing drill bit are taken to a deck, the second type of inner pipe is sent into the rope coring outer pipe assembly, and coring drilling is carried out. The invention can directly realize comprehensive drilling, improve the drilling efficiency, and implement core drilling by replacing the drilling tool and the drill bit.
Description
Technical field
The invention belongs to drilling applications, and more specifically, it relates to a kind of sea area fast drilling tool and methods.
Background technique
The purpose of sampling is to provide analysis pair to obtain sea bed gas hydrate reservoir sample data for pilot production
Strata condition variation before and after pilot production.Coring work is needed to arrange according to geology, using complete opening coring or target zone coring, hydration
Object reservoir uses coring drilling with keep up pressure mode.To improve sea area sampling efficiency, it is proposed that use wire line coring system.
It needs preferentially to meet pilot production productive target demand during pilot production, before producing well successfully completes pilot production task temporarily
Coring is not arranged to work.It is contemplated that after producing well according to target completes pilot production work, according to reality in monitoring well drilling process
Demand is considered whether to arrange coring work, be analyzed strata condition variation after pilot production.
Core-drilling will increase the activity duration with respect to total cost management, practical at present to carry out gastight sampling behaviour in 1300 meters of depth of waters
Each round trip is about 2 to 3 hours time-consuming during work, so if you need to arrange coring to work, it is proposed that do not use complete opening coring, only exist
Implement coring drilling with keep up pressure drilling in hydrate destination layer position.
According to mentioned above principle, at the scene equipment and materials it is mating in consider to meet pilot production production task first, while scene is made
Industry ability takes into account the needs for meeting core drilling task.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of sea area fast drilling tool and side
Method does not need the layer position of coring, and pipe assembly investment first kind inner tube can be directly realized by total cost management to outside wire line coring, improves
Drilling efficiency；During drilling well needs core-drilling, the scheme of replaceable drilling tool, drill bit puts into Second Type inner tube
In the outer pipe assembly of wire line coring, i.e. implementation core-drilling.
The purpose of the present invention can be achieved through the following technical solutions.
Fast drilling tool in sea area of the present invention, including pipe assembly and wire line coring internal pipe assembly outside wire line coring, the rope
Asking for the outer pipe assembly of the heart includes that from top to bottom sequentially connected connector, outer tube and drill bit, the wire line coring internal pipe assembly include
First kind inner tube and Second Type inner tube, the first kind inner tube include that bushing bar assembly interconnected and bushing are bored
Head, the Second Type inner tube include coring bar assembly and core barrel interconnected.
The purpose of the present invention can be also achieved through the following technical solutions.
Fast drilling method in sea area of the present invention, comprising the following steps:
Step 1: jointing, outer tube and drill bit, after completing the outer pipe assembly assembling of wire line coring, in tripping in drilling well；
Step 2: not needing the layer position of coring in drilling well, " bushing bar assembly and bushing drill bit " is formed with salvaging mechanism
First kind inner tube direct plunge into the outer pipe assembly of wire line coring, that is, form combined type comprehensive drill bit, directly implement brill comprehensively
Into；
Step 3: during drilling well well location needs core-drilling, by salvaging mechanism by bushing bar assembly and bushing
Drill bit takes to deck, is then sent into rope with the Second Type inner tube that salvaging mechanism forms " coring bar assembly and core barrel "
In the outer pipe assembly of coring, i.e. implementation core-drilling extracts pipe assembly outside wire line coring and Second Type inner tube after the completion of coring
To deck.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
Wire line coring internal pipe assembly includes first kind inner tube and Second Type inner tube in the present invention, is bored in pilot production producing well
In well work, the layer position of coring is not needed, pipe assembly investment first kind inner tube can be directly realized by comprehensive brill to outside wire line coring
Into raising drilling efficiency；To improve whole drive sampling efficiency, such as need to need coring in drilling well using core-drilling is arranged
During drilling, the scheme of replaceable drilling tool, drill bit is put into Second Type inner tube outside wire line coring using center releasing type
In pipe assembly, i.e. implementation core-drilling.
Detailed description of the invention
Fig. 1 is the outer pipe assembly of wire line coring and first kind inner tube assembling schematic diagram in the present invention.
Fig. 2 is the outer pipe assembly of wire line coring and Second Type inner tube assembling schematic diagram in the present invention.
Appended drawing reference: 1 connector, 2 outer tubes, 3 drill bits, 4 bushing bar assemblies, 5 bushing drill bits, 6 coring bar assemblies, 7 core barrels.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
As depicted in figs. 1 and 2, fast drilling tool in sea area of the present invention, including pipe assembly and wire line coring outside wire line coring
Inner tube assembly, the outer pipe assembly of the wire line coring include from top to bottom sequentially connected connector 1, outer tube 2 and drill bit 3, the rope
Asking for intracardiac pipe assembly includes first kind inner tube and Second Type inner tube, and the first kind inner tube includes benefit interconnected
Core bar assembly 4 and bushing drill bit 5, the Second Type inner tube include coring bar assembly 6 and core barrel 7 interconnected.Using
First kind inner tube can directly implement total cost management, using the implementable core-drilling of Second Type inner tube.
The combination of fast drilling tool in sea area of the present invention:
(1) suggest that drill assembly is taken such as under type: wire line coring internal pipe assembly+lower centralizer+wire line coring outer tube is total
At+drill collar+centralizer+drilling rod.
(2) the outfit requirement of drilling rod, drill collar, centralizer
It is recommended that first having to preferentially meet total cost management drilling rod intensity, waterpower ginseng when mating drilling rod, drill collar, centralizer
Number etc. requires, while considering the requirement of core-drilling, does not need to change drilling rod, drill collar, centralizer when needing to implement coring
It can be completed.To meet core-drilling, it is proposed that design parameter requires as follows:
1. meeting intensity requirement, grade of steel is not less than S140；
2. drilling rod, drill collar, centralizer internal diameter are not less than 104.7mm, meet sampler and pass through requirement；
3. being proposed with interior flat external upset (EU) structure.
According to design hole depth and casing programme, the drilling rod and drill collar of mating sufficient length.
(3) selection of drill bit: implement to need for sea bottom hydrate reservoir characteristics and coring work, it is proposed that PDC is selected to bore
Head；The internal diameter of drill bit matches with sampler, and outside diameter is determined according to specific Drilling Design.
The corollary equipment and place demand of the drilling process of fast drilling tool in sea area of the present invention:
(1) wire line core drilling sampling in sea area needs to be equipped with wellhead assembly (riser system) or uses dedicated sampling base
Disk, wellhead assembly and the interior latus rectum for sampling basal disc need to meet drill assembly and pass through demand.
(2) to improve field operation efficiency, fast drilling tool scene in sea area is mating to be no less than 2 sets/class, general fisher
1 set.
Fast drilling method in sea area of the present invention, comprising the following steps:
Step 1: jointing 1, outer tube 2 and drill bit 3, after completing the outer pipe assembly assembling of wire line coring, in tripping in drilling well；
Step 2: do not need the layer position of coring in drilling well, with salvaging mechanism by " bushing bar assembly 4 and bushing drill bit 5 " group
At first kind inner tube direct plunge into outside wire line coring in pipe assembly, as shown in Figure 1, combined type comprehensive drill bit can be formed,
Directly implement total cost management.
Step 3: during drilling well well location needs core-drilling, by salvaging mechanism by bushing bar assembly 4 and bushing
Drill bit 5 takes to deck, is then sent into the Second Type inner tube that salvaging mechanism forms " coring bar assembly 6 and core barrel 7 "
In the outer pipe assembly of wire line coring, as shown in Fig. 2, implement core-drilling, by pipe assembly outside wire line coring and the after the completion of coring
Two type inner tubes are extracted to deck.
Although function and the course of work of the invention are described above in conjunction with attached drawing, the invention is not limited to
Above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than restrictive, ability
The those of ordinary skill in domain under the inspiration of the present invention, is not departing from present inventive concept and scope of the claimed protection situation
Under, many forms can also be made, all of these belong to the protection of the present invention.
Claims (2)
1. a kind of sea area fast drilling tool, including pipe assembly and wire line coring internal pipe assembly outside wire line coring, which is characterized in that
The outer pipe assembly of the wire line coring includes that from top to bottom sequentially connected connector (1), outer tube (2) and drill bit (3), the rope take
Intracardiac pipe assembly includes first kind inner tube and Second Type inner tube, and the first kind inner tube includes bushing bar interconnected
Assembly (4) and bushing drill bit (5), the Second Type inner tube include coring bar assembly (6) interconnected and core barrel (7).
2. a kind of sea area fast drilling method, which comprises the following steps:
Step 1: jointing (1), outer tube (2) and drill bit (3), after completing the outer pipe assembly assembling of wire line coring, tripping in drilling well
In；
Step 2: do not need the layer position of coring in drilling well, with salvaging mechanism by " bushing bar assembly (4) and bushing drill bit (5) " group
At first kind inner tube direct plunge into outside wire line coring in pipe assembly, that is, form combined type comprehensive drill bit, directly implement comprehensive
Drilling；
Step 3: bushing bar assembly (4) and bushing are bored by salvaging mechanism during drilling well well location needs core-drilling
Head (5) takes to deck, the Second Type inner tube for then being formed " coring bar assembly (6) and core barrel (7) " with salvaging mechanism
It is sent into the outer pipe assembly of wire line coring, i.e. implementation core-drilling, by pipe assembly outside wire line coring and Second Type after the completion of coring
Inner tube is extracted to deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910260959.1A CN109826577A (en) | 2019-04-02 | 2019-04-02 | Sea area rapid drilling tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910260959.1A CN109826577A (en) | 2019-04-02 | 2019-04-02 | Sea area rapid drilling tool and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109826577A true CN109826577A (en) | 2019-05-31 |
Family
ID=66874494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910260959.1A Pending CN109826577A (en) | 2019-04-02 | 2019-04-02 | Sea area rapid drilling tool and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109826577A (en) |
-
2019
- 2019-04-02 CN CN201910260959.1A patent/CN109826577A/en active Pending
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