1、常用鉆井液體系翻譯聚合醇鉆井液體系聚乙二醇和聚合醇是聚合醇鉆井液體系的主要成分，在水基鉆井液體系中有著優(yōu)秀的 潤(rùn)滑和穩(wěn)定井壁的作用。聚合醇的濁點(diǎn)是指：產(chǎn)品在濁點(diǎn)以下在水基體系任意互溶，當(dāng)溫度 高于濁點(diǎn)時(shí)變成水不溶物以小微珠形式從水中析出。聚合醇是一種非離子表面活性劑，白色類似牛奶的粘稠液體，低溫與水互溶，升到一 定溫度后，一部分以小微珠形式從水中析出，使溶液變得混濁不透明。濁點(diǎn)現(xiàn)象可逆，小微 珠可以堵塞地層孔隙和縫隙，或沉積在井壁泥餅上，穩(wěn)定井壁，提高鉆井液本身和井壁的潤(rùn) 滑性能，減輕油氣層損害。Polyglycol and polyalcohol are used as principal

2、ingredients in polyglycol & ployacohol drilling fluid system and as excellent lubricants and borehole stabilizers in other water base drilling fluid systems.Cloud point of a polyacohol refers to the temperature below which the product is in dissolved state in a water base system in any proportion an

3、d above which it becomes water insoluble and comes out from the water phase of the fluid as small droplets.Polyalcohol is a kind of nonionic surfactant.Its a white color viscous liquid similar to the milk.The cloud point phenomenon is reversible.The small droplets can plug fissures and give birth of

4、 tough and strengthened mud cake in the purpose of obtaining a stable borehole wall.It can improve the lubricity of the fluid system and the mud cake. Meanwhile the addition of polyalcohol can prevent formation damage.甲酸鹽鉆井液體系甲酸鹽鉆井液體系是不含膨潤(rùn)土的鉆井液，溶解大量的甲酸鹽，具有一定的密度，有 很強(qiáng)的防止油氣層損害的功能，常用做完井液。甲酸鹽鉆井液的密度范圍可以通過(guò)

5、選擇甲酸 鹽類型和可酸溶的加重材料，如碳酸鈣和赤鐵礦粉加重在1.62.3g/cm3之間，甲酸鉀含量在 35%時(shí)密度可達(dá)1.6g/cm3。甲酸鹽抑制性強(qiáng)，可防止地層粘土顆粒水化分散，巖屑回收率高。 同時(shí)使用增稠劑、降失水劑、潤(rùn)滑劑和消泡劑以使甲酸鹽鉆井液具有滿意的性能。從而具有 很好的井壁穩(wěn)定和減輕油氣層損害的效能。加入順序，在水中加入增稠劑，降失水劑，消泡劑和甲酸鹽。為使甲酸鹽顯示出它的 無(wú)固相和抑制性好的優(yōu)點(diǎn)，應(yīng)及時(shí)將侵入的鉆屑清除是至關(guān)重要的，為保持甲酸鹽鉆井液的 密度，應(yīng)實(shí)時(shí)檢測(cè)和補(bǔ)充鉆井液的甲酸鹽，使其達(dá)到要求的含量。Formate drilling fluid system is l

6、ow-bentonite.It dissolves a great deal of formates and gets a certain density.It may effectively prevent oil and gas formaton damage.It usually used in completion fluids.The scale of drilling fluid density can be controled by different types of formates and some acid-soluble materials.Such as calciu

7、m carbonate and hematite can be used in the density between 1.6 to 2.3g/cm3.The density can reach 1.6g/cm3 in 35% formate potassium liquid solution.Formates have strong inhibitive to prevent shale hydration and swelling. Meanwhile the addition of viscosifiers,FL control agents,lubricants and defoame

8、rs can get a satisfactory performance of this system.高密度低固相鉆井液體系The high density and low solid drilling fluid system采用多組分水溶性鹽做加重劑，最高密度可達(dá)2.5g/cm3。體系的抑制性強(qiáng)，.固相含量 低，泥餅薄而致密，鉆井液對(duì)地層污染小，滲透率恢復(fù)值高，保護(hù)油氣層效果好。同時(shí)使用 包被劑、降濾失劑、增粘提切劑和極壓潤(rùn)滑劑可以使該體系的鉆井液具有滿意的性能。從而 具有很好的井壁穩(wěn)定和減輕油氣層損害的效能。The multi-component water-soluble salt

9、 used as weighting materials.The maximum density can reach 2.5 g/cm3. The system has strong inhibition,low solid content,dense mud cake,low pollution to the formation, high permeability restore value,good protection to the oil and gas layer.Meanwhile the addition of encapsulators,FL control agents,v

10、iscosifiers and lubricants can get a satisfactory performance of this system. Thus a good borehole stability and low damage to the formation can be received.甲酸鹽完井液體系Formate completion fluid system該體系以易溶于水、密度可調(diào)范圍廣的甲酸鹽做加重劑，具有很寬的密度范圍，能在 1.02.3g/cm3之間自由調(diào)節(jié)鉆井完井液密度，大大提高聚合物的高溫穩(wěn)定性，消除了常規(guī)高 密度完井液中因重晶石含量高、高溫下聚合物

11、易降解等因素造成的高溫高壓油氣井難于開發(fā) 的問(wèn)題，適用于多種高溫高壓條件下復(fù)雜井的鉆完井施工作業(yè)。The system is soluble in water.It has a wide range of density by using formate as its weighting materials.The density of this completion can get between 1.0 to 2.3g/cm3.It greatly improves the stability of copolymer in the high temperature.It eliminat

12、es exploitation problems in the high pressure oil and gas wells because of the high content of barite,the breaking down of copolymer.Its widely used as completion in a variety of high temperature and high pressure conditions暫堵無(wú)固相完井液體系體系無(wú)固相，所使用的水可以是高礦化度的鹽水，能夠有效抑制地層水化膨脹，穩(wěn)定 井壁。體系使用的封堵材料為有機(jī)交聯(lián)高分子材料，各支鏈上均

13、含有羥基、羧基、酰胺基、 磺酸基等水化和吸附基團(tuán)，具有較高的吸水膨化性、伸縮延展性和吸附性。遇水能膨脹 50200倍，在外力作用下，會(huì)主動(dòng)變形吸附在井壁表面，形成一張具有韌性的薄膜保護(hù)層， 防止外來(lái)固體或液體侵入地層，更好的保護(hù)油氣層。同時(shí)由于產(chǎn)品中交聯(lián)主架為酶變性天然 高分子材料和合成特殊材料，可調(diào)節(jié)降解解堵。體系中有一定含量的助排降粘劑，可以有效 降低地層孔隙中流體的粘度，保持地層孔隙通暢。Temporarily blocked and non-soild completionfluid systemThis system has non-soild and can use in high

14、 salty water.Its effective inhibitors can suppress shale hydration and swelling.Therefore a stable borehole could be ensured.The blocked material is polymeric organic substance.The branched-chain cantains hydration and adsorption group,such as hydroxyl, carboxyl, amide groups and sulphonates.These g

15、roups have a higher expansion and adsorption in water.It can expand 50 to 200 times and get distortion to adsorb on the borehole wall.The forming of protective layer can prevent invasive of outer soild or liquid.So a better protection of oil and gas could be ensured.The most impotant character of th

16、is system is the polymer materials can be easy degraded to end the block.高密度無(wú)固相完井液體系以銨、鈉、鉀、鈣和鋅的漠化物和氯化物為基質(zhì)，礦化度高，抑制了地層的水化、膨 脹、分散，用復(fù)合季銨型陽(yáng)離子聚合物作為穩(wěn)定粘土劑，維持體系中的陽(yáng)離子平衡，防止粘 土膨脹和運(yùn)移，不溶于原油和烴類，抗油洗能力強(qiáng)，且不存在潤(rùn)濕反轉(zhuǎn)問(wèn)題。系列抗高溫高 鹽緩蝕劑，該緩蝕劑與完井液、地層水等具有良好的配伍性，該緩蝕劑能抗150C的高溫， 在150C的高溫環(huán)境下不分解，以生物酶為主要用劑開發(fā)出的系列環(huán)保型高效解堵劑，該解 堵劑和完井液配伍性好，在完井過(guò)程中防止泥漿污染地層的同時(shí)有效地清除油層中的暫堵物 質(zhì)，保證油層有更高的滲透率恢復(fù)值。High density non-solid completion fluid systemThis system uses ammonium, sodium, potassium, calcium and zinc chloride and bromide as weighting materials.It has a high mineralization to supp