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Flowing type high-temperature and high-pressure automatic drilling fluid parameter measuring system and method

A technology of parameter measurement and drilling fluid, which is applied in the field of oil and gas drilling, can solve problems such as inaccurate measurement results and achieve the effect of improving accuracy

Pending Publication Date: 2021-01-15
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, it is necessary to provide a flowing high-temperature, high-pressure automatic drilling fluid parameter measurement system and method to solve the problem of inaccurate measurement results in the prior art

Method used

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  • Flowing type high-temperature and high-pressure automatic drilling fluid parameter measuring system and method
  • Flowing type high-temperature and high-pressure automatic drilling fluid parameter measuring system and method

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Embodiment 1

[0053] The embodiment of the present invention provides a flowing high-temperature, high-pressure automatic drilling fluid parameter measurement system, including a mud mixing tank, a mud heat exchanger, a heating jacket, a plunger pump, a flow testing device and a control module, wherein:

[0054] The slurry mixing tank, the mud heat exchanger, and the plunger pump are sequentially connected by pipelines, and the mud heat exchanger is located below the slurry mixing tank; the upper end of the slurry mixing tank is provided with a liquid inlet, and the slurry mixing tank It is used to receive the test drilling fluid discharged from the flow test device from the liquid inlet. The mud mixing tank is also used to configure the test drilling fluid. The heating jacket is arranged on the outer surface of the mud mixing tank to keep the fluid in the mud mixing tank warm. , the mud heat exchanger is used to receive the test drilling fluid flowing out from the mud mixing tank, and perfo...

Embodiment 2

[0075] The embodiment of the present invention provides a flow type high temperature, high pressure automatic drilling fluid parameter measurement method, comprising the following steps:

[0076] Simulate the flow state of drilling fluid in annulus or conventional pipe flow under actual working conditions;

[0077] Real-time acquisition of the pressure and flow of drilling fluid when it enters and exits the flow test device;

[0078] Real-time inversion is performed according to instantaneous pressure and flow rate to obtain the best rheological mode of conventional pipe or annular pipe and the rheological parameters of drilling fluid flowing through it.

[0079] In a specific embodiment, the flow-type high-temperature, high-pressure automatic drilling fluid parameter measurement method includes the real-time change of the electric signal returned by the flow meter 16 and the pressure / flow sensor 21 along the line; the automatic drilling fluid parameter measurement of the cont...

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Abstract

The invention relates to a flowing type high-temperature and high-pressure automatic drilling fluid parameter measuring system and method, and the system comprises: a slurry preparation tank which isused for receiving testing drilling fluid discharged by a flowing testing device from a liquid inlet, and is also used for preparing the drilling fluid; a heating sleeve which is arranged on the outersurface of the slurry preparation tank and used for preserving heat of fluid in the slurry preparation tank; a slurry heat exchanger which is used for receiving the test drilling fluid flowing out ofthe slurry preparation tank and circularly heating the test drilling fluid in real time according to actual working conditions; a plunger pump which is used for conveying the prepared test drilling fluid into the flowing testing device; the flowing testing device which is used for simulating the flowing state of the drilling fluid in an annulus or a conventional pipe flow under the actual workingcondition, and is also used for acquiring the pressure and flow of the drilling fluid entering and exiting the flow testing device in real time; and a control module which is used for performing inversion according to the instantaneous pressure and the flow to obtain the optimal rheological mode of the conventional pipe or the annular pipe and rheological parameters of drilling fluid flowing through the pipe or the annular pipe. The system provided by the invention improves the accuracy of rheological parameter measurement.

Description

technical field [0001] The invention relates to the technical field of oil and gas drilling, in particular to a flowing high-temperature and high-pressure automatic drilling fluid parameter measurement system and method. Background technique [0002] At present, most oilfields use sampling methods or automatic measurement methods to measure rheological parameters of fluids such as drilling fluids. Sampling and measurement cannot guarantee that the ambient temperature and pressure are consistent with the actual borehole conditions, and additives are often added to improve the performance of the mud and cement slurry during drilling and cementing, which cannot reflect the performance changes of the drilling fluid in real time; commonly used automatic measurement devices are based on The principle of the rotational viscometer requires a large amount of data input and operation, and its use range is limited, the structure is complex, the reliability is poor, and the experiment t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/00
CPCG01N11/00E21B21/08Y02E10/10E21B2200/20G01N2011/006G01N11/02
Inventor 张菲菲彭涛王越支王怡迪柳鹤程仲余义兵魏凯
Owner YANGTZE UNIVERSITY