RU2012149755A - PDC DRILLING TOOL - Google Patents
PDC DRILLING TOOL Download PDFInfo
- Publication number
- RU2012149755A RU2012149755A RU2012149755/03A RU2012149755A RU2012149755A RU 2012149755 A RU2012149755 A RU 2012149755A RU 2012149755/03 A RU2012149755/03 A RU 2012149755/03A RU 2012149755 A RU2012149755 A RU 2012149755A RU 2012149755 A RU2012149755 A RU 2012149755A
- Authority
- RU
- Russia
- Prior art keywords
- pdc
- cutters
- tool
- bit
- head
- Prior art date
Links
Abstract
1. PDC-буровой инструмент: бурголовка; долото, включающее корпус, вооруженный резцами PDC, отличающийся тем, что, с целью увеличения показателей эффективности работы инструмента путем снятия напряженного состояния от бокового воздействия горного давления в большей части забоя скважины за счет переноса его под периферийные резцы, рабочая поверхность, на которой размещены резцы, выполнена в виде обратной конической поверхности.2. PDC-инструмент: бурголовка; долото по п.1, отличающееся тем, что опережающие периферийные резцы дублируются, как находящиеся в наиболее тяжелых условиях.3. PDC-инструмент: бурголовка; долото по п.1, отличающееся тем, что резцы, калибрующие стенку скважины, размещены ступенчато по ходу вращения долота.4. PDC-инструмент: бурголовка; долото по п.1, отличающееся тем, что у обратной конической поверхности соотношение радиуса основания конуса к его высоте равно 2/3.5. PDC-инструмент: бурголовка; долото по п.1, отличающееся тем, что резцы, на внутренней обратной конической поверхности размещены ступенчато по ходу вращения долота или в противоход.6. PDC-инструмент: бурголовка; долото по п.1, отличающееся тем, что резцы, на внутренней обратной конической поверхности необязательно дублируются в полном объеме.1. PDC-boring tool: burgole head; a bit comprising a body armed with PDC cutters, characterized in that, in order to increase the performance of the tool by relieving stress from lateral exposure to rock pressure in most of the bottom of the well by transferring it to peripheral cutters, the working surface on which the cutters are placed , made in the form of an inverse conical surface. 2. PDC tool: burglar head; a bit according to claim 1, characterized in that the leading peripheral cutters are duplicated as being in the most difficult conditions. PDC tool: burglar head; the bit according to claim 1, characterized in that the cutters calibrating the wall of the well are placed stepwise in the direction of rotation of the bit. PDC tool: burglar head; the bit according to claim 1, characterized in that at the opposite conical surface the ratio of the radius of the base of the cone to its height is 2 / 3.5. PDC tool: burglar head; the bit according to claim 1, characterized in that the cutters on the inverse conical surface are placed stepwise in the direction of rotation of the bit or in the opposite direction. PDC tool: burglar head; a chisel according to claim 1, characterized in that the cutters on the inner inverse conical surface are not necessarily duplicated in full.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2012149755/03A RU2545201C2 (en) | 2012-11-21 | 2012-11-21 | Pdc-drill rool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2012149755/03A RU2545201C2 (en) | 2012-11-21 | 2012-11-21 | Pdc-drill rool |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2012149755A true RU2012149755A (en) | 2014-05-27 |
RU2545201C2 RU2545201C2 (en) | 2015-03-27 |
Family
ID=50775166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2012149755/03A RU2545201C2 (en) | 2012-11-21 | 2012-11-21 | Pdc-drill rool |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2545201C2 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU386118A1 (en) * | 1971-12-27 | 1973-06-14 | Бориславское управление буровых работ | DRILLING BIT |
US5957225A (en) * | 1997-07-31 | 1999-09-28 | Bp Amoco Corporation | Drilling assembly and method of drilling for unstable and depleted formations |
RU2360096C1 (en) * | 2007-10-03 | 2009-06-27 | Открытое акционерное общество "Волгабурмаш" (ОАО "Волгабурмаш") | Cone bit for boring horizontal boreholes |
-
2012
- 2012-11-21 RU RU2012149755/03A patent/RU2545201C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2545201C2 (en) | 2015-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20161122 |