Category News

Shaanxi Rixin Environmental Protection Technology Co., Ltd appeared at the 4th International Symposium on Oilfield Chemical Materials and Technology to open a new chapter in the high-quality development of oilfield chemicals with the key to innovation

In September 2025, the 4th International Symposium on Oilfield Chemical Materials and Technology was held in Ningbo, China. With the theme of “Innovation Drives High-quality Development of Oilfield Chemistry”, the seminar brought together many experts, scholars and business representatives from…

Read MoreShaanxi Rixin Environmental Protection Technology Co., Ltd appeared at the 4th International Symposium on Oilfield Chemical Materials and Technology to open a new chapter in the high-quality development of oilfield chemicals with the key to innovation

Application and Optimization ofManaged Pressure Drilling Technology incomplex wells,Galkynysh Gas Field in Turkmenistan

Abstract:In order to solve the problem of coexistence of malignant well leakage and spouting in high-temperature, high-pressure, high-sulfur, and narrow-density window formation drilling in the Jinesh gas field in Turkmenistan, Wen Zhang innovatively proposed and applied the fine pressure-controlled drilling…

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Study on the Evaluation Method ofBonding Quality ofthe Second Interface of Cementing

Abstracts: The bonding quality of the second interface of cementing(the bonding surface between the cement sheath  and  the  wellbore  wall)seriously  affects  the  isolation  effect  and  production  stability  of  oil   and   gas   wells.At present,there   is  no  unified   standard   and   method   for   the   indoor   evaluation   of  the   second   interface   of   cementing. Based  on  the  influence  of  mud   cake   on  the  bonding  quality  of  cementing,the   mechanical  method,acoustic  method  and  microstructure  analysis  method  were  used  to  evaluate  the  bonding  quality  of  rock-cement  combination   samples before  and  after  interface  treatment  and  at  different  curing  times,and  an  indoor  evaluation  method  for  the  bonding quality  of  the  second  interface  of  cementing  was  established.The  results  show  that  the  quality  of  the  bonding  of  the second  interface  of  cementing   is  closely  related  to  the  cleanliness  of  the  bonding   surface  and  the  curing  time.The less  mud  cake  there  is  at  the  bonding  surface,the  longer  the  curing  time,the  higher  the  shear  bonding  strength,the greater the…

Read MoreStudy on the Evaluation Method ofBonding Quality ofthe Second Interface of Cementing

Meet demulsifiers

Demulsifier is a surfactant that destroys emulsion. Demulsifiers mainly destroy the emulsion by partially replacing the stabilizing membrane. used as a dehydrating agent, it can remove the water from crude oil and heavy oil to make the water content meet…

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