Real time monitor method for early stage well kick overflow based on transient flow

An instantaneous flow rate and real-time monitoring technology, which is applied in measurement, earthwork drilling, wellbore/well components, etc., can solve problems such as high system cost, difficulty in popularization and application, and immature technology, and achieve simple, rapid and accurate monitoring methods The effect of real-time monitoring

Active Publication Date: 2016-09-21
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

Among them, ground monitoring is economical and practical but lacks timeliness and accuracy; although downhole monitoring methods are timely and accur...

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  • Real time monitor method for early stage well kick overflow based on transient flow
  • Real time monitor method for early stage well kick overflow based on transient flow
  • Real time monitor method for early stage well kick overflow based on transient flow

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[0014] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] like figure 1 As shown, the method for real-time monitoring of early kick overflow based on instantaneous flow in the embodiment of the present invention includes the following steps:

[0017] (A) Install a drilling fluid return instantaneous flow meter at the wellhead, and connect the mud circulation tank to a mud pump. The mud pump is equipped with a mud pressure sensor and a mud level gauge to measure the displacement of the mud pump in real time.

[0018] (B) Start the mud...

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Abstract

The invention discloses a real time monitor method for early stage well kick overflow based on transient flow. By means of a wellhead transient flow meter, a slurry pressure sensor, and a slurry liquidometer, the drilling fluid returning from the wellhead is monitored in real time for early discovery of well kick overflow to solve the problem of poor real-time performance and accuracy of the current early stage well kick overflow detection. According to the method, on the drilling site, related measure devices are used for collecting the pressure, the temperature and fluid volume of wellbores which are not limited by the well size and drilling machine types so that the monitor method is simple, quick, and effective. According to the method, by aggregate analysis of pressure, temperature and volume of the wellbore, and the torque vertical segment and horizontal segment friction/torque data, the required parameter can be accurately obtained through ground survey data and real time monitor on early well kick overflow can be quickly and accurately performed.

Description

technical field [0001] The invention belongs to the technical field of drilling construction, in particular to a method for real-time monitoring of early kick overflow based on instantaneous flow. Background technique [0002] Kick overflow is a complicated drilling situation that affects drilling safety. Kick overflow not only hinders the normal drilling operation to a certain extent, reduces drilling efficiency, but even leads to wellbore scrapping and causing a large number of casualties. Early detection of well kick and overflow will win valuable well control time and reduce the difficulty of accident elimination and secondary well control. [0003] At present, the real-time monitoring methods of early kick overflow in China mainly include surface monitoring and downhole monitoring. Among them, surface monitoring is economical and practical, but lacks timeliness and accuracy; although downhole monitoring methods are timely and accurate, the current technology is not mat...

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Application Information

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IPC IPC(8): E21B47/00E21B47/06
Inventor 梁海波张弓郭智勇张禾王智孙语岐杨明嵛邹佳玲徐少枫赵浩良万永胜邓中强谭芸
Owner SOUTHWEST PETROLEUM UNIV
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