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- Close both the hot and cold water shutoff valves upstream nearest to the intended installation. 關(guān)閉離計劃安裝位置最近的上游熱水和冷水的關(guān)斷閥。
- Newly developed water shutoff agents are colloidal dispersant gel (CDG),new precipitation-type and complex type. 新發(fā)展的堵水劑有膠體分散體凍膠、新型沉淀型和復合型等。
- Results of application show that rate of successful seating is 100% used in fracturing, acidization and water shutoff operations. 使用表明 ,這種封隔器在壓裂、酸化和堵水作業(yè)中 ,坐封成功率達 10 0%25 ,應用效果非常明顯 ,并達到各項設計要求。
- Water shutoff agent DSZ-A is composed of inorganic particle.Its specialities are low cost,easily flow,high strength and long valid period. 是一種無(wú)機顆粒油井堵水劑，具有成本低、可泵性好、封堵強度高、有效期長(cháng)的特點(diǎn)。
- Water shutoff agent can block up the high permeability formations when the breakthrough pressure of the agent is bigger than the pr... 應用突破壓力法,不僅可以確定堵劑在地層中應放置的位置,還可以正確組合堵劑并計算堵劑的用量。
- Abstract： Water shutoff agent DSZ-A is composed of inorganic particle.Its specialities are low cost,easily flow,high strength and long valid period. 摘 要： DSZ-A是一種無(wú)機顆粒油井堵水劑，具有成本低、可泵性好、封堵強度高、有效期長(cháng)的特點(diǎn)。
- The water shutoff technology with solid expandable tube is a new technology to shut off water by repairing and strengthening perforated casing. 可膨脹管堵水技術(shù)是一種利用膨脹管對套管補貼以實(shí)現水層封堵的新技術(shù)。
- Breakthrough pressure method was presented in order to accurately determine the plugging position of water shutoff agent in oil reservoir. 為了能更準確地預測堵劑在油藏中的封堵位置,提出了堵劑突破壓力法。
- IPCS technology was aimed at improving the effection that water shutoff and profile control enhance recovery efficiency factor. 現有的單一的調剖堵水工藝技術(shù)不能滿(mǎn)足高含水期對改善層內、層間及平面矛盾的要求,以及動(dòng)用水驅驅不到的剩余油。
- A swellable polymer water shutoff agent was prepared with acrylic acid,acrylamide,organic crosslinker (MBAM)and functional ion monomer(D/S)as main materials. 針對高溫高鹽大孔道地層,以丙烯酸、丙烯酰胺、有機交聯(lián)劑MBAM和功能性離子單體D/S為主要原料,制備了吸水膨脹型堵水劑。
- These resins may be used in water shutoff profile control, pealing pipe line, dewatering of oil product and crude oil, and sewage disposal etc. in petroleum industry. 用于石油工業(yè)可作為堵水調剖、管線(xiàn)密封、原油成品油脫水、污水處理等。
- As an isolation tool designed for downhole water shutoff in oilfield,the wedging packer consists of setting part,locking part,releasing part and sealing part. 楔入式封隔器是針對油田井下堵水而設計的一種封堵工具,由坐封、鎖緊、解封和密封4部分組成。
- The results of plugging test showed that water shutoff agent HY had good plugging efficiency for different permeability core,plugging rate was more than 99.90%,and the core break- through pressure grade was higher than 18.0 MPa. 聚合物堵水劑HY的封堵試驗結果表明;堵水劑HY對不同滲透率的巖芯均具有很好的封堵效果;封堵率大于99.;90%25;突破壓力梯度大于18
- A modified cationic polyhydroxy-compound gel ling fluid as water shutoff is developed.This type of gel has better selectivity.Its field tests are descri bed and the results are satisfactory. 介紹了一種利用陽(yáng)離子化改性多羥基化合物進(jìn)行堵水調剖的方法，具有一定的選擇性，在油田應用取得了良好效果。
- Surfactants used in oil production include oil displacement agent,water shutoff agent,additives used in acidizing and fracturing,viscosity reducer by emulsification deplugging agent etc. 在采油中,表面活性劑用作驅油劑、培水劑、酸化添加劑、壓裂添加劑、防蠟劑、乳化降粘劑、解堵劑等;
- Water shutoff system XN-PP developed is a in-situ copolymerization system polymerized from acrylamide, low-grade aldehyde and some addition a-gents.Chemical mechanism of XN-PP is analysed. 根據油田地層特征及調制堵水技術(shù)對調剖堵水材料的要求,研制了以丙烯酰胺和低級醛為主劑的就地共聚合交聯(lián)體系XN-PP。
- Production theory and processes of modified urea-formaldehyde resin used in oil well water shutoff and some influence on product performance resulted by main factor in the production are introduced. 介紹了適用于油田油井堵水用的改性脲醛樹(shù)脂的生產(chǎn)原理和工藝,以及生產(chǎn)中的關(guān)鍵因素對產(chǎn)品性能的影響。
- In order to improve the effect of profil e control and water shutoff， the decisi on theory by injection well pressure inde x (PI) and ZY-PI1 injection well pressur e drop testing tool are developed. 為了提高高含水期油田調剖堵水的效果，開(kāi)發(fā)了注水井壓力指數決策理論，并研制了ZY-PI1注水井壓降測試儀。
- HT fractured reservoir high-temperature water shutoff agent has been developed by using secondary crosslinked gel in accordance with problems of high permeability and high leakage. 針對高溫裂縫性油藏堵水中存在的高滲透和高濾失問(wèn)題,采用二次交聯(lián)凝膠技術(shù),研制了HT裂縫性油藏高溫堵劑。
- The clear water mirrored the blue sky. 清澈的水中映出蔚藍的天空。
