吉林油田保護(hù)油氣層射孔液體系研究
發(fā)布時(shí)間：2018-11-23 15:27
【摘要】：射孔液作為射孔作業(yè)中必不可少的入井工作液,在射孔作業(yè)中發(fā)揮了巨大的作用。但是,作為外來的入井流體,由于含有固相顆粒、濾液與儲(chǔ)層不配伍等原因,射孔液體系會(huì)對(duì)儲(chǔ)層帶來嚴(yán)重?fù)p害,這些損害會(huì)降低地層的滲透率,大大降低儲(chǔ)層的產(chǎn)能�？紤]到射孔液體系對(duì)儲(chǔ)層的損害,在研發(fā)射孔液體系的過程中就必須緊密聯(lián)系油氣層保護(hù)的相關(guān)技術(shù),針對(duì)研究區(qū)塊的儲(chǔ)層特點(diǎn)優(yōu)選射孔液體系中的各類添加劑,使射孔液體系達(dá)到低傷害甚至無傷害的要求。本課題研究區(qū)塊為吉林油田伊通、王府、德惠、讓字井四個(gè)區(qū)塊,具有致密、高溫的特點(diǎn),這也對(duì)射孔液體系的研發(fā)提出了更高的要求,如何在高溫條件下保持射孔液體系的性能,如何在加入少量的固相顆粒甚至是不加入固相顆粒的條件下使射孔液體系的密度達(dá)到一定的要求,這些都是本課題研究面臨的重要難題。本文通過收集大量國(guó)內(nèi)外射孔液體系資料,各類添加劑資料、研究區(qū)塊儲(chǔ)層的特征資料,以吉林油田伊通、王府、德惠、讓字井四個(gè)區(qū)塊作為研究對(duì)象,在對(duì)射孔液固相傷害以及液相傷害分析研究的基礎(chǔ)上,采用理論調(diào)研和室內(nèi)實(shí)驗(yàn)相結(jié)合的技術(shù)路線,進(jìn)行了低傷害射孔液體系研究,并且對(duì)射孔液體系進(jìn)行性能評(píng)價(jià),研制出了保護(hù)吉林油田儲(chǔ)層的射孔液體系。通過資料調(diào)研發(fā)現(xiàn),要達(dá)到高密度射孔液的要求,一般采用加入少許固相顆粒的方法。但是,由于固相顆粒對(duì)儲(chǔ)層傷害嚴(yán)重(尤其是類似于吉林油田的低滲儲(chǔ)層),必須減少甚至是杜絕固相顆粒的加入。室內(nèi)對(duì)加重劑的篩選試驗(yàn)提供了兩條很好的思路,采用甲酸鹽或者是鹵鹽作為基液的射孔液體系,既能達(dá)到一定的密度,而且由于兩者均為可溶性鹽類,不會(huì)對(duì)儲(chǔ)層帶來嚴(yán)重的固相損害。課題要求射孔液密度最高達(dá)到2.5g/cm3,而加重劑篩選試驗(yàn)的結(jié)果顯示,鹵鹽密度最高達(dá)到2.4g/cm3,甲酸鹽密度最高達(dá)到23 g/cm3,課題采用加入鹽結(jié)晶抑制劑的辦法很好的解決了問題,而且在適當(dāng)?shù)那闆r下加入微量的鐵礦粉,也可以使射孔液體系的密度滿足要求。在密度達(dá)到要求的基礎(chǔ)上,對(duì)其他添加劑進(jìn)行進(jìn)一步的優(yōu)選,確定采用GZN作為抗高溫增粘劑,采用KCl作為粘土穩(wěn)定劑,降濾失劑則選用SMP-Ⅱ+TEMP以及GJL-1+GJL-2+SMP-Ⅱ這兩種復(fù)配降濾失劑,其中甲酸鹽體系采用SMP-Ⅱ+TEMP作為降濾失劑,而鹵鹽體系則采用GJL-1+GJL-2+SMP-Ⅱ作為降濾失劑。表面活性劑則選用具有耐高溫、耐鹽、表面活性強(qiáng)的氟碳表面活性劑FX。在確定各類添加劑的基礎(chǔ)上確定了兩個(gè)射孔液體系：甲酸鹽+KCl+SMP-Ⅱ +TEMP+GZN+FX的甲酸鹽體系,以及鹵鹽+KCl+GJL-1+GJL-2+SMP-Ⅱ +GZN+FX的鹵鹽體系。課題要求射孔液最高抗溫需達(dá)到185℃,在如此高溫條件下,對(duì)油管、管線的腐蝕情況會(huì)加重,而且很多添加劑會(huì)因高溫而降低性能甚至失效,課題研究中向射孔液體系中加入高溫緩蝕劑JCI、HSJ-JH,抗氧劑Na2SO3,護(hù)膠劑GBH較好的解決了這一問題,通過室內(nèi)射孔液評(píng)價(jià)試驗(yàn)證明,這些添加劑可以與體系很好的配伍,大大提升射孔液體系的抗溫性能并減少體系對(duì)油管的腐蝕。通過對(duì)射孔液體系中各類添加劑的優(yōu)選,對(duì)于不同密度、不同溫度要求的兩種射孔液體系都研發(fā)出了相應(yīng)的配方。將各類配方進(jìn)行射孔液體系性能評(píng)價(jià),最終結(jié)論發(fā)現(xiàn)：各類射孔液體系均滿足API濾失量≤16ml/30min、腐蝕速率≤0.076mm/a、巖心滲透率恢復(fù)值在95%以上的課題要求,可以很好的作用于吉林油田研究區(qū)塊的現(xiàn)場(chǎng)生產(chǎn)中去。總之,該射孔液體系的研制成功有效地解決了吉林油田(具有低滲、高溫的特點(diǎn))難以找到低傷害、抗高溫、高密度的射孔液的問題。而且,研發(fā)出的兩種射孔液體系在溫度達(dá)到185℃、密度達(dá)到2.5g/cm3時(shí),仍然具有較好的性質(zhì),可作為吉林油田研究區(qū)塊未來開發(fā)的技術(shù)儲(chǔ)備。因此,兩種射孔液體系可以較好的應(yīng)用于吉林油田的四個(gè)研究區(qū)塊中,具有不錯(cuò)的應(yīng)用前景。
[Abstract]:As an essential working fluid in the perforating operation, the orifice liquid plays a great role in the perforation operation. However, as a foreign-in-in fluid, the injection-hole fluid system can cause serious damage to the reservoir due to the non-compatibility of the solid-phase particles, the filtrate and the reservoir, which can reduce the permeability of the formation and greatly reduce the production capacity of the reservoir. Considering the damage of the injection hole liquid system to the reservoir, the related technology of the oil and gas layer protection must be closely contacted during the development of the injection hole liquid system, and various additives in the injection hole liquid system are preferred for the reservoir characteristics of the research block, and the injection hole liquid system can meet the requirements of low harm and even no harm. The research area of this project is the four blocks of Yitong, Wangfu and Dehui in Jilin Oilfield, and has the characteristics of compact and high temperature. It also puts forward higher requirements for R & D of the injection hole liquid system, and how to keep the performance of the injection hole liquid system under high temperature conditions. How to make the density of the orifice liquid system meet a certain requirement under the condition that a small amount of solid phase particles are added and even the solid-phase particles are not added are the important problems facing the research of the subject. In this paper, by collecting a lot of data of the domestic and international injection hole liquid system and the data of various additives, the characteristic data of the reservoir of the block is studied, and the four blocks of the word well are used as the research object in Yitong, Wangfu and Dehui in Jilin Oilfield. On the basis of the research of the solid phase injury and the liquid phase damage analysis of the injection hole liquid, the research of the low-harm shooting-hole liquid system was carried out by the combination of the theoretical investigation and the indoor experiment, and the performance of the injection-hole liquid system was evaluated. The injection hole liquid system for protecting the reservoir of Jilin oilfield is developed. According to the data investigation, it is found that the method of adding a little solid phase particles is generally adopted in order to meet the requirement of high-density orifice liquid. However, due to the severe damage to the reservoir (especially the low-permeability reservoir similar to the Jilin oilfield), it is necessary to reduce or even eliminate the addition of solid-phase particles. The screening test of the weighting agent in the room provides two very good ideas, which can achieve a certain density by adopting a formic acid salt or a halide salt as a base liquid, and can not cause serious solid phase damage to the reservoir because the two are both soluble salts. The result of the screening test of the weighting agent is that the density of the halogen salt is up to 2.4g/ cm3, the density of the formate is up to 23 g/ cm3, and the problem is solved well by the method of adding the salt crystallization inhibitor. and a trace of iron ore powder is added in the appropriate condition, and the density of the injection hole liquid system can be met. on the basis of the requirement of the density, the other additives are further preferably selected, the GZN is used as the anti-high-temperature tackifier, KCl is used as the clay stabilizer, the SMP-II + TEMP and the GJL-1 + GJL-2 + SMP-II are selected as the filter loss agent, The formate system adopts SMP-II + TEMP as the filtrate reducer, and the halogen salt system adopts GJL-1 + GJL-2 + SMP-II as the filtrate reducer. the surface active agent is selected from the fluorocarbon surfactant FX with high temperature resistance, salt resistance and surface activity. On the basis of the determination of various additives, two solution systems were determined: formate + KCl + SMP-II + TEMP + GZN + FX formate system, and halite + KCl + GJL-1 + GJL-2 + SMP-II + GZN + FX brine system. The subject requires the maximum anti-temperature of the orifice liquid to reach 185.d egree. C., and under such high temperature conditions, the corrosion of the oil pipe and the pipeline can be increased, and the performance or even failure of many additives can be reduced due to the high temperature, and the high-temperature corrosion inhibitor JCI, HSJ-JH and the antioxidant Na2SO3 are added to the injection hole liquid system in the research of the subject. The glue-protecting agent (GBH) has a good solution to this problem, and it is proved that these additives can be compatible with the system, and the anti-temperature performance of the injection-hole liquid system can be greatly improved and the corrosion of the system to the oil pipe can be reduced. Through the optimization of various additives in the liquid-jet system, the corresponding formulations have been developed for two kinds of liquid-injection systems with different densities and different temperature requirements. The performance evaluation of various formulations was carried out, and the final conclusion was found that all kinds of orifice liquid systems met the requirements of the API fluid loss rate of 16ml/ 30min, the corrosion rate of 0.076mm/ a and the recovery value of the core permeability of more than 95%. and can be well applied to the field production of the Jilin oilfield research block. In conclusion, the successful development of the orifice liquid system effectively solves the problems of low-damage, high-temperature and high-density orifice liquid in Jilin Oilfield (which has the characteristics of low permeability and high temperature). In addition, when the temperature reaches 185.degree. C. and the density reaches 2.5g/ cm3, the developed two-shot liquid system still has good properties, and can be used as a technical reserve for the future development of the Jilin Oilfield Research Block. Therefore, the two orifice liquid system can be applied to the four research blocks in Jilin oilfield, and has good application prospect.
【學(xué)位授予單位】：長(zhǎng)江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE257.1
本文編號(hào)：2351905
[Abstract]:As an essential working fluid in the perforating operation, the orifice liquid plays a great role in the perforation operation. However, as a foreign-in-in fluid, the injection-hole fluid system can cause serious damage to the reservoir due to the non-compatibility of the solid-phase particles, the filtrate and the reservoir, which can reduce the permeability of the formation and greatly reduce the production capacity of the reservoir. Considering the damage of the injection hole liquid system to the reservoir, the related technology of the oil and gas layer protection must be closely contacted during the development of the injection hole liquid system, and various additives in the injection hole liquid system are preferred for the reservoir characteristics of the research block, and the injection hole liquid system can meet the requirements of low harm and even no harm. The research area of this project is the four blocks of Yitong, Wangfu and Dehui in Jilin Oilfield, and has the characteristics of compact and high temperature. It also puts forward higher requirements for R & D of the injection hole liquid system, and how to keep the performance of the injection hole liquid system under high temperature conditions. How to make the density of the orifice liquid system meet a certain requirement under the condition that a small amount of solid phase particles are added and even the solid-phase particles are not added are the important problems facing the research of the subject. In this paper, by collecting a lot of data of the domestic and international injection hole liquid system and the data of various additives, the characteristic data of the reservoir of the block is studied, and the four blocks of the word well are used as the research object in Yitong, Wangfu and Dehui in Jilin Oilfield. On the basis of the research of the solid phase injury and the liquid phase damage analysis of the injection hole liquid, the research of the low-harm shooting-hole liquid system was carried out by the combination of the theoretical investigation and the indoor experiment, and the performance of the injection-hole liquid system was evaluated. The injection hole liquid system for protecting the reservoir of Jilin oilfield is developed. According to the data investigation, it is found that the method of adding a little solid phase particles is generally adopted in order to meet the requirement of high-density orifice liquid. However, due to the severe damage to the reservoir (especially the low-permeability reservoir similar to the Jilin oilfield), it is necessary to reduce or even eliminate the addition of solid-phase particles. The screening test of the weighting agent in the room provides two very good ideas, which can achieve a certain density by adopting a formic acid salt or a halide salt as a base liquid, and can not cause serious solid phase damage to the reservoir because the two are both soluble salts. The result of the screening test of the weighting agent is that the density of the halogen salt is up to 2.4g/ cm3, the density of the formate is up to 23 g/ cm3, and the problem is solved well by the method of adding the salt crystallization inhibitor. and a trace of iron ore powder is added in the appropriate condition, and the density of the injection hole liquid system can be met. on the basis of the requirement of the density, the other additives are further preferably selected, the GZN is used as the anti-high-temperature tackifier, KCl is used as the clay stabilizer, the SMP-II + TEMP and the GJL-1 + GJL-2 + SMP-II are selected as the filter loss agent, The formate system adopts SMP-II + TEMP as the filtrate reducer, and the halogen salt system adopts GJL-1 + GJL-2 + SMP-II as the filtrate reducer. the surface active agent is selected from the fluorocarbon surfactant FX with high temperature resistance, salt resistance and surface activity. On the basis of the determination of various additives, two solution systems were determined: formate + KCl + SMP-II + TEMP + GZN + FX formate system, and halite + KCl + GJL-1 + GJL-2 + SMP-II + GZN + FX brine system. The subject requires the maximum anti-temperature of the orifice liquid to reach 185.d egree. C., and under such high temperature conditions, the corrosion of the oil pipe and the pipeline can be increased, and the performance or even failure of many additives can be reduced due to the high temperature, and the high-temperature corrosion inhibitor JCI, HSJ-JH and the antioxidant Na2SO3 are added to the injection hole liquid system in the research of the subject. The glue-protecting agent (GBH) has a good solution to this problem, and it is proved that these additives can be compatible with the system, and the anti-temperature performance of the injection-hole liquid system can be greatly improved and the corrosion of the system to the oil pipe can be reduced. Through the optimization of various additives in the liquid-jet system, the corresponding formulations have been developed for two kinds of liquid-injection systems with different densities and different temperature requirements. The performance evaluation of various formulations was carried out, and the final conclusion was found that all kinds of orifice liquid systems met the requirements of the API fluid loss rate of 16ml/ 30min, the corrosion rate of 0.076mm/ a and the recovery value of the core permeability of more than 95%. and can be well applied to the field production of the Jilin oilfield research block. In conclusion, the successful development of the orifice liquid system effectively solves the problems of low-damage, high-temperature and high-density orifice liquid in Jilin Oilfield (which has the characteristics of low permeability and high temperature). In addition, when the temperature reaches 185.degree. C. and the density reaches 2.5g/ cm3, the developed two-shot liquid system still has good properties, and can be used as a technical reserve for the future development of the Jilin Oilfield Research Block. Therefore, the two orifice liquid system can be applied to the four research blocks in Jilin oilfield, and has good application prospect.
【學(xué)位授予單位】：長(zhǎng)江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE257.1
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