CN105041253A - Method for arraying hard alloy of pilot hole grinding and milling tool for opening up passage by grinding and milling - Google Patents
Method for arraying hard alloy of pilot hole grinding and milling tool for opening up passage by grinding and milling Download PDFInfo
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- CN105041253A CN105041253A CN201510378632.6A CN201510378632A CN105041253A CN 105041253 A CN105041253 A CN 105041253A CN 201510378632 A CN201510378632 A CN 201510378632A CN 105041253 A CN105041253 A CN 105041253A
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Abstract
The invention relates to a lateral drilling grinding and milling tool, in particular to a method for arraying hard alloy of a pilot hole grinding and milling tool for opening up a passage by grinding and milling. The method comprises the step of arraying hard alloy blocks welded onto various knife boards transversely and longitudinally in a staggered manner. After the hard alloy blocks are arrayed, the knife boards do not have cutting dead corners in the transverse direction and the longitudinal direction. The efficiency on opening up of the passage by grinding and milling is improved, and construction period is shortened. The shortcoming that drilling footage is zero or is increased slowly during grinding and milling of the existing pilot hole grinding and milling tool is overcome.
Description
Technical field:
The present invention relates to a kind of sidetracked hole milling tool, particularly a kind of milling diameter enlarging neck eye milling tool carbide alloy aligning method.
Background technology:
Buried hill block oil-gas reservoir has buries the features such as dark, pressure series of strata are many, change large, stratum is hard, abrasiveness is strong; particularly stratum belongs to two cover pressure systems up and down; during former well completion; for protection hill reservoir; protective casing is all down to top, buried hill, and production string is suspended on completion in protective casing.Window on tail pipe top, face two cover different pressures system problem, cost is high, the cycle is long; And window in tail pipe inside, face Slim Hole Sidetracking Technology and double-layer sleeve windowing problem, difficulty is large, poor feasibility.
By tail pipe milling diameter enlarging technology, the i.e. milling section of partially overlapping tail pipe, different pressures system tail pipe top can being avoided to window face or special formation (easy card stratum of the easily collapsing) risk faced of windowing, effectively reduce costs, a difficult problem for the inner slim-hole double-layer sleeve windowing faced of windowing of tail pipe can be avoided again, evade falling the security risks such as the easy swollen button of Slim Hole Sidetracking Technology construction high, the little drilling tool of pump pressure, and can casing programme be simplified, increase completion tubular column size, be more conducive to the oil producing operation in later stage.
In the process of milling diameter enlarging, often can occur neck eye milling tool when tool body and alloy intact there is no drilling depth or drilling depth situation slowly, main cause is that the aligning method of milling tool carbide alloy is unreasonable.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of milling diameter enlarging neck eye milling tool carbide alloy aligning method, the method achieves and improves milling diameter enlarging efficiency, shorten construction period.Without the deficiency of drilling depth or the slow problem of drilling depth when overcoming existing neck eye milling tool milling.
The technical solution used in the present invention is: a kind of milling diameter enlarging neck eye milling tool carbide alloy aligning method, comprise milling diameter enlarging neck eye milling tool, milling diameter enlarging neck eye milling tool comprises tool body, tool body circumference angularly welds multiple knife plate, each knife plate all welds multiple hard alloy blocks; The method step is as follows: the hard alloy blocks that each knife plate welds all is staggered on horizontal and vertical, and after arrangement, knife plate is formed horizontal and vertical upper all without cutting dead angle.
The invention has the beneficial effects as follows: the present invention improves milling diameter enlarging efficiency, shorten construction period.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Fig. 1 is milling diameter enlarging neck eye milling tool carbide alloy Pareto diagram one.
Fig. 2 is milling diameter enlarging neck eye milling tool carbide alloy Pareto diagram two.
Fig. 3 is milling diameter enlarging neck eye milling tool carbide alloy Pareto diagram three.
Fig. 4 is milling diameter enlarging neck eye milling tool carbide alloy Pareto diagram four.
Detailed description of the invention:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of milling diameter enlarging neck eye milling tool carbide alloy aligning method, comprise milling diameter enlarging neck eye milling tool, milling diameter enlarging neck eye milling tool comprises tool body, tool body circumference angularly welds multiple knife plate, each knife plate all welds multiple hard alloy blocks; The method step is as follows: the hard alloy blocks that each knife plate welds all is staggered on horizontal and vertical, and after arrangement, knife plate is formed horizontal and vertical upper all without cutting dead angle.Hard alloy blocks and knife plate cylindrical have fine clearance, and protection outer layer sleeve is not worn.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (1)
1. a milling diameter enlarging neck eye milling tool carbide alloy aligning method, comprise milling diameter enlarging neck eye milling tool, milling diameter enlarging neck eye milling tool comprises tool body, tool body circumference angularly welds multiple knife plate, each knife plate all welds multiple hard alloy blocks; It is characterized in that: the method step is as follows: the hard alloy blocks that each knife plate welds all is staggered on horizontal and vertical, after arrangement, knife plate is formed horizontal and vertical upper all without cutting dead angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378632.6A CN105041253A (en) | 2015-06-30 | 2015-06-30 | Method for arraying hard alloy of pilot hole grinding and milling tool for opening up passage by grinding and milling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378632.6A CN105041253A (en) | 2015-06-30 | 2015-06-30 | Method for arraying hard alloy of pilot hole grinding and milling tool for opening up passage by grinding and milling |
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| Publication Number | Publication Date |
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| CN105041253A true CN105041253A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510378632.6A Pending CN105041253A (en) | 2015-06-30 | 2015-06-30 | Method for arraying hard alloy of pilot hole grinding and milling tool for opening up passage by grinding and milling |
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| CN (1) | CN105041253A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2844406Y (en) * | 2005-08-22 | 2006-12-06 | 大庆油田有限责任公司 | Fluid power expanding combined segment milling cutter |
| US20110240367A1 (en) * | 2009-10-01 | 2011-10-06 | Baker Hughes Incorporated | Milling Tool for Establishing Openings in Wellbore Obstructions |
| CN203925375U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海钻探工程有限公司 | A kind of abrasionproof piloted mill |
| CN204371175U (en) * | 2014-12-26 | 2015-06-03 | 贵州高峰石油机械股份有限公司 | A kind of efficient impregnated type neck eye junk mill |
-
2015
- 2015-06-30 CN CN201510378632.6A patent/CN105041253A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2844406Y (en) * | 2005-08-22 | 2006-12-06 | 大庆油田有限责任公司 | Fluid power expanding combined segment milling cutter |
| US20110240367A1 (en) * | 2009-10-01 | 2011-10-06 | Baker Hughes Incorporated | Milling Tool for Establishing Openings in Wellbore Obstructions |
| CN203925375U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海钻探工程有限公司 | A kind of abrasionproof piloted mill |
| CN204371175U (en) * | 2014-12-26 | 2015-06-03 | 贵州高峰石油机械股份有限公司 | A kind of efficient impregnated type neck eye junk mill |
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Application publication date: 20151111 |