Non-fluorescence collapse-proof fluid loss additive for oil exploration drilling fluid

A fluid loss control agent and oil exploration technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problem of high cost, achieve low cost, reduce cost, and control water loss

Inactive Publication Date: 2008-02-06
图们市方正化工助剂厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the increase in the number of drilling wells for oil exploration, the amount of relative chemical treatment agents is also increasing, especially because Party A’s oil production limits Party B’s drilling mud cost, Party B cannot choose good quality performance,

Method used

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  • Non-fluorescence collapse-proof fluid loss additive for oil exploration drilling fluid

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Embodiment Construction

[0014] A non-fluorescence anti-slump fluid loss agent for oil exploration drilling fluids, prepared from the following components: coal gangue 500Kg, waste acrylic fiber 270Kg, caustic soda NaOH 100Kg, formaldehyde 20Kg, sodium sulfite 30Kg, sodium bisulfite 30Kg, 50Kg of phenol, 3000Kg of water. The waste acrylic fiber yarn in the present invention is the discarded acrylic fiber yarn.

[0015] The method for preparing the above-mentioned non-fluorescent anti-slump fluid loss agent for oil exploration drilling fluid comprises the following steps:

[0016] a, 50Kg of phenol, 20Kg of formaldehyde, 30Kg of sodium nitrite, 30Kg of sodium bisulfite and 1500Kg of water are fed at one time, and condensation and sulfonation reactions are carried out under the condition that the pH value is greater than 10 to generate sulfomethyl phenolic resin;

[0017] b. Hydrolyze polyacrylonitrile waste acrylic filaments at a pH value greater than 10, at a temperature of 110°C to 120°C and a press...

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Abstract

The present invention discloses petroleum exploration well-drilling liquid used non-blooming anti-collapse and anti-falling filtration agent, which is confected by coal gangue 500Kg, waste orlon thread 270Kg, sodium hudroxide 100Kg, formaldehyde 20Kg, sodium nitrite 30Kg, sodium bisulfate 30Kg, phenol 50Kg, and water 3000Kg. The cost of the processing raw material of the product of the present invention is low, compared with the same kind of the product, the cost of the well-drilling slurry can be lowered by 30 percent, during the well-drilling process, the using volume is less, in the fresh water, 1 percent volume can be added, in the sea water, 3percent volume can be added, the performance is better than the performance of all the lignite resin products, the circumference of the drilling tool can form smooth and hard filtration cake to prevent the well wall from collapsing, to control the mudstone and the clay shale from swelling by absorbing water, to control the water lost volume, so as to improve the well-drilling schedule. The raw material adopted by the present invention is all non-blooming material, which has no interference to geological log, the product petroleum field is large in demand volume, and great in market potential. The present invention also discloses the preparation method for above anti-collapse and anti-falling filtration agent.

Description

technical field [0001] The invention relates to a non-fluorescent anti-slump fluid loss agent for petroleum exploration drilling fluid. technical background [0002] With the increase in the number of drilling wells for oil exploration, the amount of relative chemical treatment agents is also increasing, especially because Party A’s oil production limits Party B’s drilling mud cost, Party B cannot choose good quality performance, less consumption, and low price when drilling. 1. A chemical treatment agent that can reduce drilling costs. However, the existing conventional salt-resistant fluid loss control agent is added in an amount of 3% in fresh water and 5% in seawater, and the cost is relatively high. Contents of the invention [0003] The object of the present invention is to provide a non-fluorescent anti-slump fluid loss additive for oil exploration drilling fluid with low cost, low consumption and superior performance in order to overcome the shortcomings of the pri...

Claims

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Application Information

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IPC IPC(8): C09K8/03
Inventor 李振华
Owner 图们市方正化工助剂厂
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