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Drilling-fluid solid-control control process

A technology of control and drilling fluid, which is applied in earthwork drilling, wellbore flushing, wellbore/well components, etc., can solve the problems of reducing drilling speed, increasing lost circulation, and rising drilling cost, and achieves high processing efficiency and low cost. The effect of simple processing cost and processing steps

Inactive Publication Date: 2013-05-15
吕宪冬
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  • Claims
  • Application Information

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Problems solved by technology

These changes in performance will significantly reduce the rate of penetration, increase the amount of drill bits, and may even increase lost circulation, gas invasion, and stuck pipe, which will greatly increase the drilling cost.

Method used

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  • Drilling-fluid solid-control control process

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Embodiment

[0028] The drilling fluid solid control control technology related to the present invention comprises the following steps:

[0029] (a) The mud first enters the tank body from the mud inlet 5, and after being processed by the vibrating screen 11, the task of removing a large amount of larger particle debris creates conditions for the work of the next-level solid phase control equipment;

[0030] (b) The mud after the vibrating screen 11 is processed enters the grit chamber 6, and the granular debris is further removed by the desander 2;

[0031] (c) Then, the mud enters the No. 2 tank 7, removes a part of mud that does not meet the standard by the desilter 3, and then enters the No. 3 tank 8;

[0032] (d) In the No. 3 tank 8, after the mud is further processed by the centrifuge, it enters the suction tank 9 for standby.

[0033] The equipment used in the above process such as figure 1 As shown, it is mainly composed of a tank body, a desander 2, a desilter 3 and a centrifuge...

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Abstract

The invention discloses a drilling-fluid solid-control control process. The drilling-fluid solid-control control process comprises: (a) slurry enters into a tank body from a slurry inlet (5) firstly, a great deal of large-particle rock debris is eliminated after the slurry is disposed through a vibration screen (11), and conditions are created for working of next-stage solid control equipment; (b) the slurry disposed by the vibration screen (11) enters into a sand settling tank (6), and the particle rock debris is eliminated further through a grit catcher (2); (c) then, the slurry enters into a second tank (7), a part of the slurry, which does not meet standards, is removed through a silt remover (3), and then the slurry enters into a third tank (8); and (d) after the slurry is further disposed through a centrifugal separator inside the third tank (8), the slurry enters into a suction tank (9) and is reserved. By means of the drilling-fluid solid-control control process, solid control of the slurry can be completed, disposing efficiency is high, disposing steps are simple, disposing cost of the slurry is greatly lowered, and foundation is provided for recycling of the slurry in a well-drilling course.

Description

technical field [0001] The invention relates to a drilling fluid solid control technology. Background technique [0002] Mud technology has become an important part of modern oil and gas drilling engineering. A large number of research data at home and abroad show that the mud has the functions of carrying and suspending cuttings, stabilizing the well wall and balancing the formation pressure, cooling and lubricating the drill bit, drilling tools and transmitting hydraulic power during the drilling process, which are directly related to the drilling cost and even affect the success of the drilling. important role. Drilling practice has also proved that the quality of mud performance, whether the use, maintenance and treatment measures are appropriate, directly affect the stability of the well wall, and the stability of the well wall is related to the acquisition of geological data, drilling speed, quality and cost. Therefore, Mud is often compared to the blood of drilling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/06
Inventor 吕宪冬
Owner 吕宪冬