A mechanism for controlling crosslinkers

A cross-linking agent, No. 1 technology, applied in wellbore/well components, production fluid, earthwork drilling and production, etc., can solve problems such as difficulty in ensuring accurate control, clogged pipeline displacement, instability, etc., to achieve convenient and precise control, The effect of stable displacement and fast cleaning

Inactive Publication Date: 2016-05-04
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a mechanism for controlling the cross-linking agent, which overcomes the problem that the existing cross-linking agent control system is prone to clogged pipelines and unstable displacement, and it is difficult to ensure precise control

Method used

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  • A mechanism for controlling crosslinkers

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] a kind of like figure 1 The mechanism for controlling the cross-linking agent shown in the figure, the arrow in the figure indicates the flow direction of the cross-linking agent, including the No. 1 liquid addition pump 1, the transition tank 3, and the No. Filter 1 at the liquid outlet of pump 1 and filter 2 7 at the liquid inlet of No. 1 liquid and pump 1 can filter the cross-linking agent multiple times to prevent impurities from entering the cross-linking agent to the greatest extent and ensure cross-linking. The cleaning of the coupling agent, and the filter screen can be easily disassembled and replaced and cleaned without affecting the normal use of the system.

[0017] The above-mentioned mechanism for controlling the cross-linking agent is also provided with the three-item port A of the first outlet of the No. 2 liquid addition pump 2 and the three-item port B of the second outlet of the No. 2 liquid addition pump 2; two of the above-mentioned three items of p...

Embodiment 2

[0022] After the cross-linking agent is mixed with the additive through the cross-linking agent pool 5 on the ground, it is pumped into the transition tank 3 on the sand mixing platform by the No. 1 liquid addition pump 1, and then the No. 2 liquid addition pump 2 is pumped from the transition tank 3 In the sand mixer manifold 5, liquid cross-linking is realized. When a small cross-linking agent displacement is required, the No. 2 liquid addition pump 2 is in a stable low-speed working state, and the required cross-linking displacement can be adjusted through valve A8 and valve B9, and can realize from zero to the maximum working capacity of the pump. The working range of cross-linking agent pump displacement is widened and precise control is realized.

[0023] According to the required cross-linking agent displacement, firstly, the No. 1 liquid addition pump 1 fills the cross-linking agent transition tank 3, and then turns on the No. 2 liquid addition pump 2, so that the No. ...

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Abstract

The invention belongs to the technical field of controlling of cross-linking agents, in particular relates to a mechanism for controlling the cross-linking agents. The mechanism comprises a first liquid adding pump, a transition tank, a second liquid adding pump, a first filter screen, a second filter screen, a ternary port A and a ternary port B. The first liquid adding pump, the transition tank and the second liquid adding pump are connected through pipelines in sequence, the first filter screen is arranged at a liquid outlet of the first liquid adding pump, and the second filter screen is arranged at a liquid inlet of the first liquid adding pump; the ternary port A is arranged at a first outlet of the second liquid adding pump, and the ternary port B is arranged at a second outlet of the second liquid adding pump. By the mechanism, the cross-linking agents can be filtered for many times after entering a liquid adding system, any impurities are stopped from entering, the filter screens can be rapidly cleaned, and adding of the cross-linking agents cannot be affected halfway; in addition, the second liquid adding pump can be always in an operation state of stable displacement through backflow pipelines, the range of displacement of the cross-linking agents entering a manifold of a fracturing blender truck is enlarged, maximum operation capacity from zero to the second liquid adding pump is improved, stable displacement of the cross-linking agents can be guaranteed, and accurate control is facilitated.

Description

technical field [0001] The invention belongs to the technical field of controlling cross-linking agents, and in particular relates to a mechanism for controlling cross-linking agents. Background technique [0002] Fracturing fluid is the "blood" in the process of fracturing reconstruction, and its cross-linking effect is the prerequisite for ensuring the sand carrying of the fracturing fluid, and it is also the prerequisite for ensuring smooth construction, effectively avoiding the occurrence of sand plugging. With the development and promotion of new liquid systems and cross-linking systems, on the one hand, due to the greater impact of cross-linking agent fluctuations on cross-linking effects, a higher degree of accuracy of cross-linking agents is required; The displacement display is accurate, which provides an effective basis for construction workers to monitor the effect of liquid crosslinking. [0003] The cross-linking agent control system used in the prior art inclu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/267
Inventor 刘广春费节高张铁军徐迎新邓斌奇郑松柏郭春峰夏玉磊钟新荣孙建平罗海峰贾凯雄
Owner BC P INC CHINA NAT PETROLEUM CORP
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