Title:
STATE SELF-ADAPTIVE TURBINE TYPE PULSE GENERATOR AND DOWNHOLE DRILLING TOOL
Document Type and Number:
WIPO Patent Application WO/2023/124294
Kind Code:
A1
Abstract:
A state self-adaptive turbine type pulse generator (100), comprising: a pulse generating apparatus (2), comprising a turbine housing (21), a turbine shaft (22) concentrically arranged inside the turbine housing (21), a turbine mechanism sleeved on the turbine shaft (22), and a valve disc mechanism disposed at a lower end of the turbine shaft (22), the turbine mechanism being capable of driving the turbine shaft (22) to rotate under the action of a drilling fluid, so that an overflow area of the valve disc mechanism undergoes periodic changes to generate a pressure pulse; and an automatic control mechanism (1), configured to control the status of the pulse generating device (2), the automatic control mechanism (1) being configured to be able to cause the turbine shaft (22) to be stationary in a circumferential direction relative to the turbine casing (21) during hybrid drilling, so that the pulse generating apparatus (2) is in a non-working state, and to enable the turbine shaft (22) to rotate relative to the turbine casing (21) under the action of the turbine mechanism during slide drilling, so that the pulse generating apparatus (2) is in a working state.
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Inventors:
WANG JIACHANG (CN)
MA GUANGJUN (CN)
ZHANG HAIPING (CN)
ZANG YANBIN (CN)
XUAN LINGCHAO (CN)
ZHANG DONGQING (CN)
LIU JIANHUA (CN)
ZHANG RENLONG (CN)
WANG LISHUANG (CN)
MA GUANGJUN (CN)
ZHANG HAIPING (CN)
ZANG YANBIN (CN)
XUAN LINGCHAO (CN)
ZHANG DONGQING (CN)
LIU JIANHUA (CN)
ZHANG RENLONG (CN)
WANG LISHUANG (CN)
Application Number:
PCT/CN2022/120521
Publication Date:
July 06, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (CN)
SINOPEC PETROLEUM ENGINEERING TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
E21B7/24
Foreign References:
| CN114135230A | 2022-03-04 | |||
| CN111255379A | 2020-06-09 | |||
| CN111577141A | 2020-08-25 | |||
| US20170122034A1 | 2017-05-04 |
Attorney, Agent or Firm:
YUHUA UNITED INTELLECTUAL PROPERTY LAW FIRM (CN)
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