Title:
WELL CEMENTING DEVICE AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/061383
Kind Code:
A1
Abstract:
A well cementing device and a control method. The well cementing device comprises a centrifugal pump, a plunger pump, and a lubrication system. The lubrication system comprises: a lubricating oil pump, which comprises a first channel, a first lubricating oil outlet in communication with the first channel, a second channel, and a second lubricating oil outlet in communication with the second channel, a first pump head being arranged in the first channel, and a second pump head being arranged in the second channel; a first distribution valve, which comprises a first inlet, at least one first outlet, and a third outlet, the first inlet being respectively in communication with the at least one first outlet, the first outlet being in communication with a packing lubrication end of the centrifugal pump, and the first lubricating oil outlet being in communication with the first inlet; and a second distribution valve, which comprises a second inlet and at least one second outlet, the second inlet being respectively in communication with the at least one second outlet, the second outlet being in communication a packing lubrication end of the plunger pump, the second lubricating oil outlet being in communication with the second inlet, or the second lubricating oil outlet being in communication with the first inlet, and the second inlet being in communication with the third outlet. The well cementing device can implement separate control of the provision of lubricating oil for the plunger pump packing or for the centrifugal pump packing, which prevents wasting lubricating oil and ensures adequate lubrication for both the centrifugal pump packing and the plunger pump packing.
Inventors:
WEI WEI (CN)
LIU YONGCHENG (CN)
MA ZHONGZHANG (CN)
GUO ZHAO (CN)
WANG JUN (CN)
LIU YONGCHENG (CN)
MA ZHONGZHANG (CN)
GUO ZHAO (CN)
WANG JUN (CN)
Application Number:
PCT/CN2023/132180
Publication Date:
March 28, 2024
Filing Date:
November 17, 2023
Export Citation:
Assignee:
YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD (CN)
International Classes:
F04B53/18; E21B33/13; F04B23/10
Foreign References:
| CN115628196A | 2023-01-20 | |||
| CN111075391A | 2020-04-28 | |||
| CN212672048U | 2021-03-09 | |||
| CN107165802A | 2017-09-15 | |||
| US20210172282A1 | 2021-06-10 | |||
| CN204099147U | 2015-01-14 | |||
| CN104528625A | 2015-04-22 | |||
| CN216197986U | 2022-04-05 |
Attorney, Agent or Firm:
SHENZHEN ZHIHUIYUANJIAN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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